public.assets.ueditor.third-party.highcharts.highcharts.src.js Maven / Gradle / Ivy
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// ==ClosureCompiler==
// @compilation_level SIMPLE_OPTIMIZATIONS
/**
* @license Highcharts JS v3.0.6 (2013-10-04)
*
* (c) 2009-2013 Torstein Hønsi
*
* License: www.highcharts.com/license
*/
// JSLint options:
/*global Highcharts, document, window, navigator, setInterval, clearInterval, clearTimeout, setTimeout, location, jQuery, $, console, each, grep */
(function () {
// encapsulated variables
var UNDEFINED,
doc = document,
win = window,
math = Math,
mathRound = math.round,
mathFloor = math.floor,
mathCeil = math.ceil,
mathMax = math.max,
mathMin = math.min,
mathAbs = math.abs,
mathCos = math.cos,
mathSin = math.sin,
mathPI = math.PI,
deg2rad = mathPI * 2 / 360,
// some variables
userAgent = navigator.userAgent,
isOpera = win.opera,
isIE = /msie/i.test(userAgent) && !isOpera,
docMode8 = doc.documentMode === 8,
isWebKit = /AppleWebKit/.test(userAgent),
isFirefox = /Firefox/.test(userAgent),
isTouchDevice = /(Mobile|Android|Windows Phone)/.test(userAgent),
SVG_NS = 'http://www.w3.org/2000/svg',
hasSVG = !!doc.createElementNS && !!doc.createElementNS(SVG_NS, 'svg').createSVGRect,
hasBidiBug = isFirefox && parseInt(userAgent.split('Firefox/')[1], 10) < 4, // issue #38
useCanVG = !hasSVG && !isIE && !!doc.createElement('canvas').getContext,
Renderer,
hasTouch = doc.documentElement.ontouchstart !== UNDEFINED,
symbolSizes = {},
idCounter = 0,
garbageBin,
defaultOptions,
dateFormat, // function
globalAnimation,
pathAnim,
timeUnits,
noop = function () {},
charts = [],
PRODUCT = 'Highcharts',
VERSION = '3.0.6',
// some constants for frequently used strings
DIV = 'div',
ABSOLUTE = 'absolute',
RELATIVE = 'relative',
HIDDEN = 'hidden',
PREFIX = 'highcharts-',
VISIBLE = 'visible',
PX = 'px',
NONE = 'none',
M = 'M',
L = 'L',
/*
* Empirical lowest possible opacities for TRACKER_FILL
* IE6: 0.002
* IE7: 0.002
* IE8: 0.002
* IE9: 0.00000000001 (unlimited)
* IE10: 0.0001 (exporting only)
* FF: 0.00000000001 (unlimited)
* Chrome: 0.000001
* Safari: 0.000001
* Opera: 0.00000000001 (unlimited)
*/
TRACKER_FILL = 'rgba(192,192,192,' + (hasSVG ? 0.0001 : 0.002) + ')', // invisible but clickable
//TRACKER_FILL = 'rgba(192,192,192,0.5)',
NORMAL_STATE = '',
HOVER_STATE = 'hover',
SELECT_STATE = 'select',
MILLISECOND = 'millisecond',
SECOND = 'second',
MINUTE = 'minute',
HOUR = 'hour',
DAY = 'day',
WEEK = 'week',
MONTH = 'month',
YEAR = 'year',
// constants for attributes
LINEAR_GRADIENT = 'linearGradient',
STOPS = 'stops',
STROKE_WIDTH = 'stroke-width',
// time methods, changed based on whether or not UTC is used
makeTime,
getMinutes,
getHours,
getDay,
getDate,
getMonth,
getFullYear,
setMinutes,
setHours,
setDate,
setMonth,
setFullYear,
// lookup over the types and the associated classes
seriesTypes = {};
// The Highcharts namespace
win.Highcharts = win.Highcharts ? error(16, true) : {};
/**
* Extend an object with the members of another
* @param {Object} a The object to be extended
* @param {Object} b The object to add to the first one
*/
function extend(a, b) {
var n;
if (!a) {
a = {};
}
for (n in b) {
a[n] = b[n];
}
return a;
}
/**
* Deep merge two or more objects and return a third object.
* Previously this function redirected to jQuery.extend(true), but this had two limitations.
* First, it deep merged arrays, which lead to workarounds in Highcharts. Second,
* it copied properties from extended prototypes.
*/
function merge() {
var i,
len = arguments.length,
ret = {},
doCopy = function (copy, original) {
var value, key;
// An object is replacing a primitive
if (typeof copy !== 'object') {
copy = {};
}
for (key in original) {
if (original.hasOwnProperty(key)) {
value = original[key];
// Copy the contents of objects, but not arrays or DOM nodes
if (value && typeof value === 'object' && Object.prototype.toString.call(value) !== '[object Array]'
&& typeof value.nodeType !== 'number') {
copy[key] = doCopy(copy[key] || {}, value);
// Primitives and arrays are copied over directly
} else {
copy[key] = original[key];
}
}
}
return copy;
};
// For each argument, extend the return
for (i = 0; i < len; i++) {
ret = doCopy(ret, arguments[i]);
}
return ret;
}
/**
* Take an array and turn into a hash with even number arguments as keys and odd numbers as
* values. Allows creating constants for commonly used style properties, attributes etc.
* Avoid it in performance critical situations like looping
*/
function hash() {
var i = 0,
args = arguments,
length = args.length,
obj = {};
for (; i < length; i++) {
obj[args[i++]] = args[i];
}
return obj;
}
/**
* Shortcut for parseInt
* @param {Object} s
* @param {Number} mag Magnitude
*/
function pInt(s, mag) {
return parseInt(s, mag || 10);
}
/**
* Check for string
* @param {Object} s
*/
function isString(s) {
return typeof s === 'string';
}
/**
* Check for object
* @param {Object} obj
*/
function isObject(obj) {
return typeof obj === 'object';
}
/**
* Check for array
* @param {Object} obj
*/
function isArray(obj) {
return Object.prototype.toString.call(obj) === '[object Array]';
}
/**
* Check for number
* @param {Object} n
*/
function isNumber(n) {
return typeof n === 'number';
}
function log2lin(num) {
return math.log(num) / math.LN10;
}
function lin2log(num) {
return math.pow(10, num);
}
/**
* Remove last occurence of an item from an array
* @param {Array} arr
* @param {Mixed} item
*/
function erase(arr, item) {
var i = arr.length;
while (i--) {
if (arr[i] === item) {
arr.splice(i, 1);
break;
}
}
//return arr;
}
/**
* Returns true if the object is not null or undefined. Like MooTools' $.defined.
* @param {Object} obj
*/
function defined(obj) {
return obj !== UNDEFINED && obj !== null;
}
/**
* Set or get an attribute or an object of attributes. Can't use jQuery attr because
* it attempts to set expando properties on the SVG element, which is not allowed.
*
* @param {Object} elem The DOM element to receive the attribute(s)
* @param {String|Object} prop The property or an abject of key-value pairs
* @param {String} value The value if a single property is set
*/
function attr(elem, prop, value) {
var key,
setAttribute = 'setAttribute',
ret;
// if the prop is a string
if (isString(prop)) {
// set the value
if (defined(value)) {
elem[setAttribute](prop, value);
// get the value
} else if (elem && elem.getAttribute) { // elem not defined when printing pie demo...
ret = elem.getAttribute(prop);
}
// else if prop is defined, it is a hash of key/value pairs
} else if (defined(prop) && isObject(prop)) {
for (key in prop) {
elem[setAttribute](key, prop[key]);
}
}
return ret;
}
/**
* Check if an element is an array, and if not, make it into an array. Like
* MooTools' $.splat.
*/
function splat(obj) {
return isArray(obj) ? obj : [obj];
}
/**
* Return the first value that is defined. Like MooTools' $.pick.
*/
function pick() {
var args = arguments,
i,
arg,
length = args.length;
for (i = 0; i < length; i++) {
arg = args[i];
if (typeof arg !== 'undefined' && arg !== null) {
return arg;
}
}
}
/**
* Set CSS on a given element
* @param {Object} el
* @param {Object} styles Style object with camel case property names
*/
function css(el, styles) {
if (isIE) {
if (styles && styles.opacity !== UNDEFINED) {
styles.filter = 'alpha(opacity=' + (styles.opacity * 100) + ')';
}
}
extend(el.style, styles);
}
/**
* Utility function to create element with attributes and styles
* @param {Object} tag
* @param {Object} attribs
* @param {Object} styles
* @param {Object} parent
* @param {Object} nopad
*/
function createElement(tag, attribs, styles, parent, nopad) {
var el = doc.createElement(tag);
if (attribs) {
extend(el, attribs);
}
if (nopad) {
css(el, {padding: 0, border: NONE, margin: 0});
}
if (styles) {
css(el, styles);
}
if (parent) {
parent.appendChild(el);
}
return el;
}
/**
* Extend a prototyped class by new members
* @param {Object} parent
* @param {Object} members
*/
function extendClass(parent, members) {
var object = function () {};
object.prototype = new parent();
extend(object.prototype, members);
return object;
}
/**
* Format a number and return a string based on input settings
* @param {Number} number The input number to format
* @param {Number} decimals The amount of decimals
* @param {String} decPoint The decimal point, defaults to the one given in the lang options
* @param {String} thousandsSep The thousands separator, defaults to the one given in the lang options
*/
function numberFormat(number, decimals, decPoint, thousandsSep) {
var lang = defaultOptions.lang,
// http://kevin.vanzonneveld.net/techblog/article/javascript_equivalent_for_phps_number_format/
n = +number || 0,
c = decimals === -1 ?
(n.toString().split('.')[1] || '').length : // preserve decimals
(isNaN(decimals = mathAbs(decimals)) ? 2 : decimals),
d = decPoint === undefined ? lang.decimalPoint : decPoint,
t = thousandsSep === undefined ? lang.thousandsSep : thousandsSep,
s = n < 0 ? "-" : "",
i = String(pInt(n = mathAbs(n).toFixed(c))),
j = i.length > 3 ? i.length % 3 : 0;
return s + (j ? i.substr(0, j) + t : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) +
(c ? d + mathAbs(n - i).toFixed(c).slice(2) : "");
}
/**
* Pad a string to a given length by adding 0 to the beginning
* @param {Number} number
* @param {Number} length
*/
function pad(number, length) {
// Create an array of the remaining length +1 and join it with 0's
return new Array((length || 2) + 1 - String(number).length).join(0) + number;
}
/**
* Wrap a method with extended functionality, preserving the original function
* @param {Object} obj The context object that the method belongs to
* @param {String} method The name of the method to extend
* @param {Function} func A wrapper function callback. This function is called with the same arguments
* as the original function, except that the original function is unshifted and passed as the first
* argument.
*/
function wrap(obj, method, func) {
var proceed = obj[method];
obj[method] = function () {
var args = Array.prototype.slice.call(arguments);
args.unshift(proceed);
return func.apply(this, args);
};
}
/**
* Based on http://www.php.net/manual/en/function.strftime.php
* @param {String} format
* @param {Number} timestamp
* @param {Boolean} capitalize
*/
dateFormat = function (format, timestamp, capitalize) {
if (!defined(timestamp) || isNaN(timestamp)) {
return 'Invalid date';
}
format = pick(format, '%Y-%m-%d %H:%M:%S');
var date = new Date(timestamp),
key, // used in for constuct below
// get the default time values
hours = date[getHours](),
day = date[getDay](),
dayOfMonth = date[getDate](),
month = date[getMonth](),
fullYear = date[getFullYear](),
lang = defaultOptions.lang,
langWeekdays = lang.weekdays,
// List all format keys. Custom formats can be added from the outside.
replacements = extend({
// Day
'a': langWeekdays[day].substr(0, 3), // Short weekday, like 'Mon'
'A': langWeekdays[day], // Long weekday, like 'Monday'
'd': pad(dayOfMonth), // Two digit day of the month, 01 to 31
'e': dayOfMonth, // Day of the month, 1 through 31
// Week (none implemented)
//'W': weekNumber(),
// Month
'b': lang.shortMonths[month], // Short month, like 'Jan'
'B': lang.months[month], // Long month, like 'January'
'm': pad(month + 1), // Two digit month number, 01 through 12
// Year
'y': fullYear.toString().substr(2, 2), // Two digits year, like 09 for 2009
'Y': fullYear, // Four digits year, like 2009
// Time
'H': pad(hours), // Two digits hours in 24h format, 00 through 23
'I': pad((hours % 12) || 12), // Two digits hours in 12h format, 00 through 11
'l': (hours % 12) || 12, // Hours in 12h format, 1 through 12
'M': pad(date[getMinutes]()), // Two digits minutes, 00 through 59
'p': hours < 12 ? 'AM' : 'PM', // Upper case AM or PM
'P': hours < 12 ? 'am' : 'pm', // Lower case AM or PM
'S': pad(date.getSeconds()), // Two digits seconds, 00 through 59
'L': pad(mathRound(timestamp % 1000), 3) // Milliseconds (naming from Ruby)
}, Highcharts.dateFormats);
// do the replaces
for (key in replacements) {
while (format.indexOf('%' + key) !== -1) { // regex would do it in one line, but this is faster
format = format.replace('%' + key, typeof replacements[key] === 'function' ? replacements[key](timestamp) : replacements[key]);
}
}
// Optionally capitalize the string and return
return capitalize ? format.substr(0, 1).toUpperCase() + format.substr(1) : format;
};
/**
* Format a single variable. Similar to sprintf, without the % prefix.
*/
function formatSingle(format, val) {
var floatRegex = /f$/,
decRegex = /\.([0-9])/,
lang = defaultOptions.lang,
decimals;
if (floatRegex.test(format)) { // float
decimals = format.match(decRegex);
decimals = decimals ? decimals[1] : -1;
val = numberFormat(
val,
decimals,
lang.decimalPoint,
format.indexOf(',') > -1 ? lang.thousandsSep : ''
);
} else {
val = dateFormat(format, val);
}
return val;
}
/**
* Format a string according to a subset of the rules of Python's String.format method.
*/
function format(str, ctx) {
var splitter = '{',
isInside = false,
segment,
valueAndFormat,
path,
i,
len,
ret = [],
val,
index;
while ((index = str.indexOf(splitter)) !== -1) {
segment = str.slice(0, index);
if (isInside) { // we're on the closing bracket looking back
valueAndFormat = segment.split(':');
path = valueAndFormat.shift().split('.'); // get first and leave format
len = path.length;
val = ctx;
// Assign deeper paths
for (i = 0; i < len; i++) {
val = val[path[i]];
}
// Format the replacement
if (valueAndFormat.length) {
val = formatSingle(valueAndFormat.join(':'), val);
}
// Push the result and advance the cursor
ret.push(val);
} else {
ret.push(segment);
}
str = str.slice(index + 1); // the rest
isInside = !isInside; // toggle
splitter = isInside ? '}' : '{'; // now look for next matching bracket
}
ret.push(str);
return ret.join('');
}
/**
* Get the magnitude of a number
*/
function getMagnitude(num) {
return math.pow(10, mathFloor(math.log(num) / math.LN10));
}
/**
* Take an interval and normalize it to multiples of 1, 2, 2.5 and 5
* @param {Number} interval
* @param {Array} multiples
* @param {Number} magnitude
* @param {Object} options
*/
function normalizeTickInterval(interval, multiples, magnitude, options) {
var normalized, i;
// round to a tenfold of 1, 2, 2.5 or 5
magnitude = pick(magnitude, 1);
normalized = interval / magnitude;
// multiples for a linear scale
if (!multiples) {
multiples = [1, 2, 2.5, 5, 10];
// the allowDecimals option
if (options && options.allowDecimals === false) {
if (magnitude === 1) {
multiples = [1, 2, 5, 10];
} else if (magnitude <= 0.1) {
multiples = [1 / magnitude];
}
}
}
// normalize the interval to the nearest multiple
for (i = 0; i < multiples.length; i++) {
interval = multiples[i];
if (normalized <= (multiples[i] + (multiples[i + 1] || multiples[i])) / 2) {
break;
}
}
// multiply back to the correct magnitude
interval *= magnitude;
return interval;
}
/**
* Get a normalized tick interval for dates. Returns a configuration object with
* unit range (interval), count and name. Used to prepare data for getTimeTicks.
* Previously this logic was part of getTimeTicks, but as getTimeTicks now runs
* of segments in stock charts, the normalizing logic was extracted in order to
* prevent it for running over again for each segment having the same interval.
* #662, #697.
*/
function normalizeTimeTickInterval(tickInterval, unitsOption) {
var units = unitsOption || [[
MILLISECOND, // unit name
[1, 2, 5, 10, 20, 25, 50, 100, 200, 500] // allowed multiples
], [
SECOND,
[1, 2, 5, 10, 15, 30]
], [
MINUTE,
[1, 2, 5, 10, 15, 30]
], [
HOUR,
[1, 2, 3, 4, 6, 8, 12]
], [
DAY,
[1, 2]
], [
WEEK,
[1, 2]
], [
MONTH,
[1, 2, 3, 4, 6]
], [
YEAR,
null
]],
unit = units[units.length - 1], // default unit is years
interval = timeUnits[unit[0]],
multiples = unit[1],
count,
i;
// loop through the units to find the one that best fits the tickInterval
for (i = 0; i < units.length; i++) {
unit = units[i];
interval = timeUnits[unit[0]];
multiples = unit[1];
if (units[i + 1]) {
// lessThan is in the middle between the highest multiple and the next unit.
var lessThan = (interval * multiples[multiples.length - 1] +
timeUnits[units[i + 1][0]]) / 2;
// break and keep the current unit
if (tickInterval <= lessThan) {
break;
}
}
}
// prevent 2.5 years intervals, though 25, 250 etc. are allowed
if (interval === timeUnits[YEAR] && tickInterval < 5 * interval) {
multiples = [1, 2, 5];
}
// get the count
count = normalizeTickInterval(
tickInterval / interval,
multiples,
unit[0] === YEAR ? getMagnitude(tickInterval / interval) : 1 // #1913
);
return {
unitRange: interval,
count: count,
unitName: unit[0]
};
}
/**
* Set the tick positions to a time unit that makes sense, for example
* on the first of each month or on every Monday. Return an array
* with the time positions. Used in datetime axes as well as for grouping
* data on a datetime axis.
*
* @param {Object} normalizedInterval The interval in axis values (ms) and the count
* @param {Number} min The minimum in axis values
* @param {Number} max The maximum in axis values
* @param {Number} startOfWeek
*/
function getTimeTicks(normalizedInterval, min, max, startOfWeek) {
var tickPositions = [],
i,
higherRanks = {},
useUTC = defaultOptions.global.useUTC,
minYear, // used in months and years as a basis for Date.UTC()
minDate = new Date(min),
interval = normalizedInterval.unitRange,
count = normalizedInterval.count;
if (defined(min)) { // #1300
if (interval >= timeUnits[SECOND]) { // second
minDate.setMilliseconds(0);
minDate.setSeconds(interval >= timeUnits[MINUTE] ? 0 :
count * mathFloor(minDate.getSeconds() / count));
}
if (interval >= timeUnits[MINUTE]) { // minute
minDate[setMinutes](interval >= timeUnits[HOUR] ? 0 :
count * mathFloor(minDate[getMinutes]() / count));
}
if (interval >= timeUnits[HOUR]) { // hour
minDate[setHours](interval >= timeUnits[DAY] ? 0 :
count * mathFloor(minDate[getHours]() / count));
}
if (interval >= timeUnits[DAY]) { // day
minDate[setDate](interval >= timeUnits[MONTH] ? 1 :
count * mathFloor(minDate[getDate]() / count));
}
if (interval >= timeUnits[MONTH]) { // month
minDate[setMonth](interval >= timeUnits[YEAR] ? 0 :
count * mathFloor(minDate[getMonth]() / count));
minYear = minDate[getFullYear]();
}
if (interval >= timeUnits[YEAR]) { // year
minYear -= minYear % count;
minDate[setFullYear](minYear);
}
// week is a special case that runs outside the hierarchy
if (interval === timeUnits[WEEK]) {
// get start of current week, independent of count
minDate[setDate](minDate[getDate]() - minDate[getDay]() +
pick(startOfWeek, 1));
}
// get tick positions
i = 1;
minYear = minDate[getFullYear]();
var time = minDate.getTime(),
minMonth = minDate[getMonth](),
minDateDate = minDate[getDate](),
timezoneOffset = useUTC ?
0 :
(24 * 3600 * 1000 + minDate.getTimezoneOffset() * 60 * 1000) % (24 * 3600 * 1000); // #950
// iterate and add tick positions at appropriate values
while (time < max) {
tickPositions.push(time);
// if the interval is years, use Date.UTC to increase years
if (interval === timeUnits[YEAR]) {
time = makeTime(minYear + i * count, 0);
// if the interval is months, use Date.UTC to increase months
} else if (interval === timeUnits[MONTH]) {
time = makeTime(minYear, minMonth + i * count);
// if we're using global time, the interval is not fixed as it jumps
// one hour at the DST crossover
} else if (!useUTC && (interval === timeUnits[DAY] || interval === timeUnits[WEEK])) {
time = makeTime(minYear, minMonth, minDateDate +
i * count * (interval === timeUnits[DAY] ? 1 : 7));
// else, the interval is fixed and we use simple addition
} else {
time += interval * count;
}
i++;
}
// push the last time
tickPositions.push(time);
// mark new days if the time is dividible by day (#1649, #1760)
each(grep(tickPositions, function (time) {
return interval <= timeUnits[HOUR] && time % timeUnits[DAY] === timezoneOffset;
}), function (time) {
higherRanks[time] = DAY;
});
}
// record information on the chosen unit - for dynamic label formatter
tickPositions.info = extend(normalizedInterval, {
higherRanks: higherRanks,
totalRange: interval * count
});
return tickPositions;
}
/**
* Helper class that contains variuos counters that are local to the chart.
*/
function ChartCounters() {
this.color = 0;
this.symbol = 0;
}
ChartCounters.prototype = {
/**
* Wraps the color counter if it reaches the specified length.
*/
wrapColor: function (length) {
if (this.color >= length) {
this.color = 0;
}
},
/**
* Wraps the symbol counter if it reaches the specified length.
*/
wrapSymbol: function (length) {
if (this.symbol >= length) {
this.symbol = 0;
}
}
};
/**
* Utility method that sorts an object array and keeping the order of equal items.
* ECMA script standard does not specify the behaviour when items are equal.
*/
function stableSort(arr, sortFunction) {
var length = arr.length,
sortValue,
i;
// Add index to each item
for (i = 0; i < length; i++) {
arr[i].ss_i = i; // stable sort index
}
arr.sort(function (a, b) {
sortValue = sortFunction(a, b);
return sortValue === 0 ? a.ss_i - b.ss_i : sortValue;
});
// Remove index from items
for (i = 0; i < length; i++) {
delete arr[i].ss_i; // stable sort index
}
}
/**
* Non-recursive method to find the lowest member of an array. Math.min raises a maximum
* call stack size exceeded error in Chrome when trying to apply more than 150.000 points. This
* method is slightly slower, but safe.
*/
function arrayMin(data) {
var i = data.length,
min = data[0];
while (i--) {
if (data[i] < min) {
min = data[i];
}
}
return min;
}
/**
* Non-recursive method to find the lowest member of an array. Math.min raises a maximum
* call stack size exceeded error in Chrome when trying to apply more than 150.000 points. This
* method is slightly slower, but safe.
*/
function arrayMax(data) {
var i = data.length,
max = data[0];
while (i--) {
if (data[i] > max) {
max = data[i];
}
}
return max;
}
/**
* Utility method that destroys any SVGElement or VMLElement that are properties on the given object.
* It loops all properties and invokes destroy if there is a destroy method. The property is
* then delete'ed.
* @param {Object} The object to destroy properties on
* @param {Object} Exception, do not destroy this property, only delete it.
*/
function destroyObjectProperties(obj, except) {
var n;
for (n in obj) {
// If the object is non-null and destroy is defined
if (obj[n] && obj[n] !== except && obj[n].destroy) {
// Invoke the destroy
obj[n].destroy();
}
// Delete the property from the object.
delete obj[n];
}
}
/**
* Discard an element by moving it to the bin and delete
* @param {Object} The HTML node to discard
*/
function discardElement(element) {
// create a garbage bin element, not part of the DOM
if (!garbageBin) {
garbageBin = createElement(DIV);
}
// move the node and empty bin
if (element) {
garbageBin.appendChild(element);
}
garbageBin.innerHTML = '';
}
/**
* Provide error messages for debugging, with links to online explanation
*/
function error(code, stop) {
var msg = 'Highcharts error #' + code + ': www.highcharts.com/errors/' + code;
if (stop) {
throw msg;
} else if (win.console) {
console.log(msg);
}
}
/**
* Fix JS round off float errors
* @param {Number} num
*/
function correctFloat(num) {
return parseFloat(
num.toPrecision(14)
);
}
/**
* Set the global animation to either a given value, or fall back to the
* given chart's animation option
* @param {Object} animation
* @param {Object} chart
*/
function setAnimation(animation, chart) {
globalAnimation = pick(animation, chart.animation);
}
/**
* The time unit lookup
*/
/*jslint white: true*/
timeUnits = hash(
MILLISECOND, 1,
SECOND, 1000,
MINUTE, 60000,
HOUR, 3600000,
DAY, 24 * 3600000,
WEEK, 7 * 24 * 3600000,
MONTH, 31 * 24 * 3600000,
YEAR, 31556952000
);
/*jslint white: false*/
/**
* Path interpolation algorithm used across adapters
*/
pathAnim = {
/**
* Prepare start and end values so that the path can be animated one to one
*/
init: function (elem, fromD, toD) {
fromD = fromD || '';
var shift = elem.shift,
bezier = fromD.indexOf('C') > -1,
numParams = bezier ? 7 : 3,
endLength,
slice,
i,
start = fromD.split(' '),
end = [].concat(toD), // copy
startBaseLine,
endBaseLine,
sixify = function (arr) { // in splines make move points have six parameters like bezier curves
i = arr.length;
while (i--) {
if (arr[i] === M) {
arr.splice(i + 1, 0, arr[i + 1], arr[i + 2], arr[i + 1], arr[i + 2]);
}
}
};
if (bezier) {
sixify(start);
sixify(end);
}
// pull out the base lines before padding
if (elem.isArea) {
startBaseLine = start.splice(start.length - 6, 6);
endBaseLine = end.splice(end.length - 6, 6);
}
// if shifting points, prepend a dummy point to the end path
if (shift <= end.length / numParams && start.length === end.length) {
while (shift--) {
end = [].concat(end).splice(0, numParams).concat(end);
}
}
elem.shift = 0; // reset for following animations
// copy and append last point until the length matches the end length
if (start.length) {
endLength = end.length;
while (start.length < endLength) {
//bezier && sixify(start);
slice = [].concat(start).splice(start.length - numParams, numParams);
if (bezier) { // disable first control point
slice[numParams - 6] = slice[numParams - 2];
slice[numParams - 5] = slice[numParams - 1];
}
start = start.concat(slice);
}
}
if (startBaseLine) { // append the base lines for areas
start = start.concat(startBaseLine);
end = end.concat(endBaseLine);
}
return [start, end];
},
/**
* Interpolate each value of the path and return the array
*/
step: function (start, end, pos, complete) {
var ret = [],
i = start.length,
startVal;
if (pos === 1) { // land on the final path without adjustment points appended in the ends
ret = complete;
} else if (i === end.length && pos < 1) {
while (i--) {
startVal = parseFloat(start[i]);
ret[i] =
isNaN(startVal) ? // a letter instruction like M or L
start[i] :
pos * (parseFloat(end[i] - startVal)) + startVal;
}
} else { // if animation is finished or length not matching, land on right value
ret = end;
}
return ret;
}
};
(function ($) {
/**
* The default HighchartsAdapter for jQuery
*/
win.HighchartsAdapter = win.HighchartsAdapter || ($ && {
/**
* Initialize the adapter by applying some extensions to jQuery
*/
init: function (pathAnim) {
// extend the animate function to allow SVG animations
var Fx = $.fx,
Step = Fx.step,
dSetter,
Tween = $.Tween,
propHooks = Tween && Tween.propHooks,
opacityHook = $.cssHooks.opacity;
/*jslint unparam: true*//* allow unused param x in this function */
$.extend($.easing, {
easeOutQuad: function (x, t, b, c, d) {
return -c * (t /= d) * (t - 2) + b;
}
});
/*jslint unparam: false*/
// extend some methods to check for elem.attr, which means it is a Highcharts SVG object
$.each(['cur', '_default', 'width', 'height', 'opacity'], function (i, fn) {
var obj = Step,
base,
elem;
// Handle different parent objects
if (fn === 'cur') {
obj = Fx.prototype; // 'cur', the getter, relates to Fx.prototype
} else if (fn === '_default' && Tween) { // jQuery 1.8 model
obj = propHooks[fn];
fn = 'set';
}
// Overwrite the method
base = obj[fn];
if (base) { // step.width and step.height don't exist in jQuery < 1.7
// create the extended function replacement
obj[fn] = function (fx) {
// Fx.prototype.cur does not use fx argument
fx = i ? fx : this;
// Don't run animations on textual properties like align (#1821)
if (fx.prop === 'align') {
return;
}
// shortcut
elem = fx.elem;
// Fx.prototype.cur returns the current value. The other ones are setters
// and returning a value has no effect.
return elem.attr ? // is SVG element wrapper
elem.attr(fx.prop, fn === 'cur' ? UNDEFINED : fx.now) : // apply the SVG wrapper's method
base.apply(this, arguments); // use jQuery's built-in method
};
}
});
// Extend the opacity getter, needed for fading opacity with IE9 and jQuery 1.10+
wrap(opacityHook, 'get', function (proceed, elem, computed) {
return elem.attr ? (elem.opacity || 0) : proceed.call(this, elem, computed);
});
// Define the setter function for d (path definitions)
dSetter = function (fx) {
var elem = fx.elem,
ends;
// Normally start and end should be set in state == 0, but sometimes,
// for reasons unknown, this doesn't happen. Perhaps state == 0 is skipped
// in these cases
if (!fx.started) {
ends = pathAnim.init(elem, elem.d, elem.toD);
fx.start = ends[0];
fx.end = ends[1];
fx.started = true;
}
// interpolate each value of the path
elem.attr('d', pathAnim.step(fx.start, fx.end, fx.pos, elem.toD));
};
// jQuery 1.8 style
if (Tween) {
propHooks.d = {
set: dSetter
};
// pre 1.8
} else {
// animate paths
Step.d = dSetter;
}
/**
* Utility for iterating over an array. Parameters are reversed compared to jQuery.
* @param {Array} arr
* @param {Function} fn
*/
this.each = Array.prototype.forEach ?
function (arr, fn) { // modern browsers
return Array.prototype.forEach.call(arr, fn);
} :
function (arr, fn) { // legacy
var i = 0,
len = arr.length;
for (; i < len; i++) {
if (fn.call(arr[i], arr[i], i, arr) === false) {
return i;
}
}
};
/**
* Register Highcharts as a plugin in the respective framework
*/
$.fn.highcharts = function () {
var constr = 'Chart', // default constructor
args = arguments,
options,
ret,
chart;
if (isString(args[0])) {
constr = args[0];
args = Array.prototype.slice.call(args, 1);
}
options = args[0];
// Create the chart
if (options !== UNDEFINED) {
/*jslint unused:false*/
options.chart = options.chart || {};
options.chart.renderTo = this[0];
chart = new Highcharts[constr](options, args[1]);
ret = this;
/*jslint unused:true*/
}
// When called without parameters or with the return argument, get a predefined chart
if (options === UNDEFINED) {
ret = charts[attr(this[0], 'data-highcharts-chart')];
}
return ret;
};
},
/**
* Downloads a script and executes a callback when done.
* @param {String} scriptLocation
* @param {Function} callback
*/
getScript: $.getScript,
/**
* Return the index of an item in an array, or -1 if not found
*/
inArray: $.inArray,
/**
* A direct link to jQuery methods. MooTools and Prototype adapters must be implemented for each case of method.
* @param {Object} elem The HTML element
* @param {String} method Which method to run on the wrapped element
*/
adapterRun: function (elem, method) {
return $(elem)[method]();
},
/**
* Filter an array
*/
grep: $.grep,
/**
* Map an array
* @param {Array} arr
* @param {Function} fn
*/
map: function (arr, fn) {
//return jQuery.map(arr, fn);
var results = [],
i = 0,
len = arr.length;
for (; i < len; i++) {
results[i] = fn.call(arr[i], arr[i], i, arr);
}
return results;
},
/**
* Get the position of an element relative to the top left of the page
*/
offset: function (el) {
return $(el).offset();
},
/**
* Add an event listener
* @param {Object} el A HTML element or custom object
* @param {String} event The event type
* @param {Function} fn The event handler
*/
addEvent: function (el, event, fn) {
$(el).bind(event, fn);
},
/**
* Remove event added with addEvent
* @param {Object} el The object
* @param {String} eventType The event type. Leave blank to remove all events.
* @param {Function} handler The function to remove
*/
removeEvent: function (el, eventType, handler) {
// workaround for jQuery issue with unbinding custom events:
// http://forum.jQuery.com/topic/javascript-error-when-unbinding-a-custom-event-using-jQuery-1-4-2
var func = doc.removeEventListener ? 'removeEventListener' : 'detachEvent';
if (doc[func] && el && !el[func]) {
el[func] = function () {};
}
$(el).unbind(eventType, handler);
},
/**
* Fire an event on a custom object
* @param {Object} el
* @param {String} type
* @param {Object} eventArguments
* @param {Function} defaultFunction
*/
fireEvent: function (el, type, eventArguments, defaultFunction) {
var event = $.Event(type),
detachedType = 'detached' + type,
defaultPrevented;
// Remove warnings in Chrome when accessing layerX and layerY. Although Highcharts
// never uses these properties, Chrome includes them in the default click event and
// raises the warning when they are copied over in the extend statement below.
//
// To avoid problems in IE (see #1010) where we cannot delete the properties and avoid
// testing if they are there (warning in chrome) the only option is to test if running IE.
if (!isIE && eventArguments) {
delete eventArguments.layerX;
delete eventArguments.layerY;
}
extend(event, eventArguments);
// Prevent jQuery from triggering the object method that is named the
// same as the event. For example, if the event is 'select', jQuery
// attempts calling el.select and it goes into a loop.
if (el[type]) {
el[detachedType] = el[type];
el[type] = null;
}
// Wrap preventDefault and stopPropagation in try/catch blocks in
// order to prevent JS errors when cancelling events on non-DOM
// objects. #615.
/*jslint unparam: true*/
$.each(['preventDefault', 'stopPropagation'], function (i, fn) {
var base = event[fn];
event[fn] = function () {
try {
base.call(event);
} catch (e) {
if (fn === 'preventDefault') {
defaultPrevented = true;
}
}
};
});
/*jslint unparam: false*/
// trigger it
$(el).trigger(event);
// attach the method
if (el[detachedType]) {
el[type] = el[detachedType];
el[detachedType] = null;
}
if (defaultFunction && !event.isDefaultPrevented() && !defaultPrevented) {
defaultFunction(event);
}
},
/**
* Extension method needed for MooTools
*/
washMouseEvent: function (e) {
var ret = e.originalEvent || e;
// computed by jQuery, needed by IE8
if (ret.pageX === UNDEFINED) { // #1236
ret.pageX = e.pageX;
ret.pageY = e.pageY;
}
return ret;
},
/**
* Animate a HTML element or SVG element wrapper
* @param {Object} el
* @param {Object} params
* @param {Object} options jQuery-like animation options: duration, easing, callback
*/
animate: function (el, params, options) {
var $el = $(el);
if (!el.style) {
el.style = {}; // #1881
}
if (params.d) {
el.toD = params.d; // keep the array form for paths, used in $.fx.step.d
params.d = 1; // because in jQuery, animating to an array has a different meaning
}
$el.stop();
if (params.opacity !== UNDEFINED && el.attr) {
params.opacity += 'px'; // force jQuery to use same logic as width and height (#2161)
}
$el.animate(params, options);
},
/**
* Stop running animation
*/
stop: function (el) {
$(el).stop();
}
});
}(win.jQuery));
// check for a custom HighchartsAdapter defined prior to this file
var globalAdapter = win.HighchartsAdapter,
adapter = globalAdapter || {};
// Initialize the adapter
if (globalAdapter) {
globalAdapter.init.call(globalAdapter, pathAnim);
}
// Utility functions. If the HighchartsAdapter is not defined, adapter is an empty object
// and all the utility functions will be null. In that case they are populated by the
// default adapters below.
var adapterRun = adapter.adapterRun,
getScript = adapter.getScript,
inArray = adapter.inArray,
each = adapter.each,
grep = adapter.grep,
offset = adapter.offset,
map = adapter.map,
addEvent = adapter.addEvent,
removeEvent = adapter.removeEvent,
fireEvent = adapter.fireEvent,
washMouseEvent = adapter.washMouseEvent,
animate = adapter.animate,
stop = adapter.stop;
/* ****************************************************************************
* Handle the options *
*****************************************************************************/
var
defaultLabelOptions = {
enabled: true,
// rotation: 0,
// align: 'center',
x: 0,
y: 15,
/*formatter: function () {
return this.value;
},*/
style: {
color: '#666',
cursor: 'default',
fontSize: '11px',
lineHeight: '14px'
}
};
defaultOptions = {
colors: ['#2f7ed8', '#0d233a', '#8bbc21', '#910000', '#1aadce', '#492970',
'#f28f43', '#77a1e5', '#c42525', '#a6c96a'],
symbols: ['circle', 'diamond', 'square', 'triangle', 'triangle-down'],
lang: {
loading: 'Loading...',
months: ['January', 'February', 'March', 'April', 'May', 'June', 'July',
'August', 'September', 'October', 'November', 'December'],
shortMonths: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
weekdays: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
decimalPoint: '.',
numericSymbols: ['k', 'M', 'G', 'T', 'P', 'E'], // SI prefixes used in axis labels
resetZoom: 'Reset zoom',
resetZoomTitle: 'Reset zoom level 1:1',
thousandsSep: ','
},
global: {
useUTC: true,
canvasToolsURL: 'http://code.highcharts.com/3.0.6/modules/canvas-tools.js',
VMLRadialGradientURL: 'http://code.highcharts.com/3.0.6/gfx/vml-radial-gradient.png'
},
chart: {
//animation: true,
//alignTicks: false,
//reflow: true,
//className: null,
//events: { load, selection },
//margin: [null],
//marginTop: null,
//marginRight: null,
//marginBottom: null,
//marginLeft: null,
borderColor: '#4572A7',
//borderWidth: 0,
borderRadius: 5,
defaultSeriesType: 'line',
ignoreHiddenSeries: true,
//inverted: false,
//shadow: false,
spacing: [10, 10, 15, 10],
//spacingTop: 10,
//spacingRight: 10,
//spacingBottom: 15,
//spacingLeft: 10,
style: {
fontFamily: '"Lucida Grande", "Lucida Sans Unicode", Verdana, Arial, Helvetica, sans-serif', // default font
fontSize: '12px'
},
backgroundColor: '#FFFFFF',
//plotBackgroundColor: null,
plotBorderColor: '#C0C0C0',
//plotBorderWidth: 0,
//plotShadow: false,
//zoomType: ''
resetZoomButton: {
theme: {
zIndex: 20
},
position: {
align: 'right',
x: -10,
//verticalAlign: 'top',
y: 10
}
// relativeTo: 'plot'
}
},
title: {
text: 'Chart title',
align: 'center',
// floating: false,
margin: 15,
// x: 0,
// verticalAlign: 'top',
// y: null,
style: {
color: '#274b6d',//#3E576F',
fontSize: '16px'
}
},
subtitle: {
text: '',
align: 'center',
// floating: false
// x: 0,
// verticalAlign: 'top',
// y: null,
style: {
color: '#4d759e'
}
},
plotOptions: {
line: { // base series options
allowPointSelect: false,
showCheckbox: false,
animation: {
duration: 1000
},
//connectNulls: false,
//cursor: 'default',
//clip: true,
//dashStyle: null,
//enableMouseTracking: true,
events: {},
//legendIndex: 0,
lineWidth: 2,
//shadow: false,
// stacking: null,
marker: {
enabled: true,
//symbol: null,
lineWidth: 0,
radius: 4,
lineColor: '#FFFFFF',
//fillColor: null,
states: { // states for a single point
hover: {
enabled: true
//radius: base + 2
},
select: {
fillColor: '#FFFFFF',
lineColor: '#000000',
lineWidth: 2
}
}
},
point: {
events: {}
},
dataLabels: merge(defaultLabelOptions, {
align: 'center',
enabled: false,
formatter: function () {
return this.y === null ? '' : numberFormat(this.y, -1);
},
verticalAlign: 'bottom', // above singular point
y: 0
// backgroundColor: undefined,
// borderColor: undefined,
// borderRadius: undefined,
// borderWidth: undefined,
// padding: 3,
// shadow: false
}),
cropThreshold: 300, // draw points outside the plot area when the number of points is less than this
pointRange: 0,
//pointStart: 0,
//pointInterval: 1,
showInLegend: true,
states: { // states for the entire series
hover: {
//enabled: false,
//lineWidth: base + 1,
marker: {
// lineWidth: base + 1,
// radius: base + 1
}
},
select: {
marker: {}
}
},
stickyTracking: true
//tooltip: {
//pointFormat: '{series.name}: {point.y}'
//valueDecimals: null,
//xDateFormat: '%A, %b %e, %Y',
//valuePrefix: '',
//ySuffix: ''
//}
// turboThreshold: 1000
// zIndex: null
}
},
labels: {
//items: [],
style: {
//font: defaultFont,
position: ABSOLUTE,
color: '#3E576F'
}
},
legend: {
enabled: true,
align: 'center',
//floating: false,
layout: 'horizontal',
labelFormatter: function () {
return this.name;
},
borderWidth: 1,
borderColor: '#909090',
borderRadius: 5,
navigation: {
// animation: true,
activeColor: '#274b6d',
// arrowSize: 12
inactiveColor: '#CCC'
// style: {} // text styles
},
// margin: 10,
// reversed: false,
shadow: false,
// backgroundColor: null,
/*style: {
padding: '5px'
},*/
itemStyle: {
cursor: 'pointer',
color: '#274b6d',
fontSize: '12px'
},
itemHoverStyle: {
//cursor: 'pointer', removed as of #601
color: '#000'
},
itemHiddenStyle: {
color: '#CCC'
},
itemCheckboxStyle: {
position: ABSOLUTE,
width: '13px', // for IE precision
height: '13px'
},
// itemWidth: undefined,
symbolWidth: 16,
symbolPadding: 5,
verticalAlign: 'bottom',
// width: undefined,
x: 0,
y: 0,
title: {
//text: null,
style: {
fontWeight: 'bold'
}
}
},
loading: {
// hideDuration: 100,
labelStyle: {
fontWeight: 'bold',
position: RELATIVE,
top: '1em'
},
// showDuration: 0,
style: {
position: ABSOLUTE,
backgroundColor: 'white',
opacity: 0.5,
textAlign: 'center'
}
},
tooltip: {
enabled: true,
animation: hasSVG,
//crosshairs: null,
backgroundColor: 'rgba(255, 255, 255, .85)',
borderWidth: 1,
borderRadius: 3,
dateTimeLabelFormats: {
millisecond: '%A, %b %e, %H:%M:%S.%L',
second: '%A, %b %e, %H:%M:%S',
minute: '%A, %b %e, %H:%M',
hour: '%A, %b %e, %H:%M',
day: '%A, %b %e, %Y',
week: 'Week from %A, %b %e, %Y',
month: '%B %Y',
year: '%Y'
},
//formatter: defaultFormatter,
headerFormat: '{point.key}
',
pointFormat: '{series.name}: {point.y}
',
shadow: true,
//shared: false,
snap: isTouchDevice ? 25 : 10,
style: {
color: '#333333',
cursor: 'default',
fontSize: '12px',
padding: '8px',
whiteSpace: 'nowrap'
}
//xDateFormat: '%A, %b %e, %Y',
//valueDecimals: null,
//valuePrefix: '',
//valueSuffix: ''
},
credits: {
enabled: true,
text: 'Highcharts.com',
href: 'http://www.highcharts.com',
position: {
align: 'right',
x: -10,
verticalAlign: 'bottom',
y: -5
},
style: {
cursor: 'pointer',
color: '#909090',
fontSize: '9px'
}
}
};
// Series defaults
var defaultPlotOptions = defaultOptions.plotOptions,
defaultSeriesOptions = defaultPlotOptions.line;
// set the default time methods
setTimeMethods();
/**
* Set the time methods globally based on the useUTC option. Time method can be either
* local time or UTC (default).
*/
function setTimeMethods() {
var useUTC = defaultOptions.global.useUTC,
GET = useUTC ? 'getUTC' : 'get',
SET = useUTC ? 'setUTC' : 'set';
makeTime = useUTC ? Date.UTC : function (year, month, date, hours, minutes, seconds) {
return new Date(
year,
month,
pick(date, 1),
pick(hours, 0),
pick(minutes, 0),
pick(seconds, 0)
).getTime();
};
getMinutes = GET + 'Minutes';
getHours = GET + 'Hours';
getDay = GET + 'Day';
getDate = GET + 'Date';
getMonth = GET + 'Month';
getFullYear = GET + 'FullYear';
setMinutes = SET + 'Minutes';
setHours = SET + 'Hours';
setDate = SET + 'Date';
setMonth = SET + 'Month';
setFullYear = SET + 'FullYear';
}
/**
* Merge the default options with custom options and return the new options structure
* @param {Object} options The new custom options
*/
function setOptions(options) {
// Pull out axis options and apply them to the respective default axis options
/*defaultXAxisOptions = merge(defaultXAxisOptions, options.xAxis);
defaultYAxisOptions = merge(defaultYAxisOptions, options.yAxis);
options.xAxis = options.yAxis = UNDEFINED;*/
// Merge in the default options
defaultOptions = merge(defaultOptions, options);
// Apply UTC
setTimeMethods();
return defaultOptions;
}
/**
* Get the updated default options. Merely exposing defaultOptions for outside modules
* isn't enough because the setOptions method creates a new object.
*/
function getOptions() {
return defaultOptions;
}
/**
* Handle color operations. The object methods are chainable.
* @param {String} input The input color in either rbga or hex format
*/
var Color = function (input) {
// declare variables
var rgba = [], result, stops;
/**
* Parse the input color to rgba array
* @param {String} input
*/
function init(input) {
// Gradients
if (input && input.stops) {
stops = map(input.stops, function (stop) {
return Color(stop[1]);
});
// Solid colors
} else {
// rgba
result = /rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]?(?:\.[0-9]+)?)\s*\)/.exec(input);
if (result) {
rgba = [pInt(result[1]), pInt(result[2]), pInt(result[3]), parseFloat(result[4], 10)];
} else {
// hex
result = /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(input);
if (result) {
rgba = [pInt(result[1], 16), pInt(result[2], 16), pInt(result[3], 16), 1];
} else {
// rgb
result = /rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(input);
if (result) {
rgba = [pInt(result[1]), pInt(result[2]), pInt(result[3]), 1];
}
}
}
}
}
/**
* Return the color a specified format
* @param {String} format
*/
function get(format) {
var ret;
if (stops) {
ret = merge(input);
ret.stops = [].concat(ret.stops);
each(stops, function (stop, i) {
ret.stops[i] = [ret.stops[i][0], stop.get(format)];
});
// it's NaN if gradient colors on a column chart
} else if (rgba && !isNaN(rgba[0])) {
if (format === 'rgb') {
ret = 'rgb(' + rgba[0] + ',' + rgba[1] + ',' + rgba[2] + ')';
} else if (format === 'a') {
ret = rgba[3];
} else {
ret = 'rgba(' + rgba.join(',') + ')';
}
} else {
ret = input;
}
return ret;
}
/**
* Brighten the color
* @param {Number} alpha
*/
function brighten(alpha) {
if (stops) {
each(stops, function (stop) {
stop.brighten(alpha);
});
} else if (isNumber(alpha) && alpha !== 0) {
var i;
for (i = 0; i < 3; i++) {
rgba[i] += pInt(alpha * 255);
if (rgba[i] < 0) {
rgba[i] = 0;
}
if (rgba[i] > 255) {
rgba[i] = 255;
}
}
}
return this;
}
/**
* Set the color's opacity to a given alpha value
* @param {Number} alpha
*/
function setOpacity(alpha) {
rgba[3] = alpha;
return this;
}
// initialize: parse the input
init(input);
// public methods
return {
get: get,
brighten: brighten,
rgba: rgba,
setOpacity: setOpacity
};
};
/**
* A wrapper object for SVG elements
*/
function SVGElement() {}
SVGElement.prototype = {
/**
* Initialize the SVG renderer
* @param {Object} renderer
* @param {String} nodeName
*/
init: function (renderer, nodeName) {
var wrapper = this;
wrapper.element = nodeName === 'span' ?
createElement(nodeName) :
doc.createElementNS(SVG_NS, nodeName);
wrapper.renderer = renderer;
/**
* A collection of attribute setters. These methods, if defined, are called right before a certain
* attribute is set on an element wrapper. Returning false prevents the default attribute
* setter to run. Returning a value causes the default setter to set that value. Used in
* Renderer.label.
*/
wrapper.attrSetters = {};
},
/**
* Default base for animation
*/
opacity: 1,
/**
* Animate a given attribute
* @param {Object} params
* @param {Number} options The same options as in jQuery animation
* @param {Function} complete Function to perform at the end of animation
*/
animate: function (params, options, complete) {
var animOptions = pick(options, globalAnimation, true);
stop(this); // stop regardless of animation actually running, or reverting to .attr (#607)
if (animOptions) {
animOptions = merge(animOptions);
if (complete) { // allows using a callback with the global animation without overwriting it
animOptions.complete = complete;
}
animate(this, params, animOptions);
} else {
this.attr(params);
if (complete) {
complete();
}
}
},
/**
* Set or get a given attribute
* @param {Object|String} hash
* @param {Mixed|Undefined} val
*/
attr: function (hash, val) {
var wrapper = this,
key,
value,
result,
i,
child,
element = wrapper.element,
nodeName = element.nodeName.toLowerCase(), // Android2 requires lower for "text"
renderer = wrapper.renderer,
skipAttr,
titleNode,
attrSetters = wrapper.attrSetters,
shadows = wrapper.shadows,
hasSetSymbolSize,
doTransform,
ret = wrapper;
// single key-value pair
if (isString(hash) && defined(val)) {
key = hash;
hash = {};
hash[key] = val;
}
// used as a getter: first argument is a string, second is undefined
if (isString(hash)) {
key = hash;
if (nodeName === 'circle') {
key = { x: 'cx', y: 'cy' }[key] || key;
} else if (key === 'strokeWidth') {
key = 'stroke-width';
}
ret = attr(element, key) || wrapper[key] || 0;
if (key !== 'd' && key !== 'visibility' && key !== 'fill') { // 'd' is string in animation step
ret = parseFloat(ret);
}
// setter
} else {
for (key in hash) {
skipAttr = false; // reset
value = hash[key];
// check for a specific attribute setter
result = attrSetters[key] && attrSetters[key].call(wrapper, value, key);
if (result !== false) {
if (result !== UNDEFINED) {
value = result; // the attribute setter has returned a new value to set
}
// paths
if (key === 'd') {
if (value && value.join) { // join path
value = value.join(' ');
}
if (/(NaN| {2}|^$)/.test(value)) {
value = 'M 0 0';
}
//wrapper.d = value; // shortcut for animations
// update child tspans x values
} else if (key === 'x' && nodeName === 'text') {
for (i = 0; i < element.childNodes.length; i++) {
child = element.childNodes[i];
// if the x values are equal, the tspan represents a linebreak
if (attr(child, 'x') === attr(element, 'x')) {
//child.setAttribute('x', value);
attr(child, 'x', value);
}
}
} else if (wrapper.rotation && (key === 'x' || key === 'y')) {
doTransform = true;
// apply gradients
} else if (key === 'fill') {
value = renderer.color(value, element, key);
// circle x and y
} else if (nodeName === 'circle' && (key === 'x' || key === 'y')) {
key = { x: 'cx', y: 'cy' }[key] || key;
// rectangle border radius
} else if (nodeName === 'rect' && key === 'r') {
attr(element, {
rx: value,
ry: value
});
skipAttr = true;
// translation and text rotation
} else if (key === 'translateX' || key === 'translateY' || key === 'rotation' ||
key === 'verticalAlign' || key === 'scaleX' || key === 'scaleY') {
doTransform = true;
skipAttr = true;
// apply opacity as subnode (required by legacy WebKit and Batik)
} else if (key === 'stroke') {
value = renderer.color(value, element, key);
// emulate VML's dashstyle implementation
} else if (key === 'dashstyle') {
key = 'stroke-dasharray';
value = value && value.toLowerCase();
if (value === 'solid') {
value = NONE;
} else if (value) {
value = value
.replace('shortdashdotdot', '3,1,1,1,1,1,')
.replace('shortdashdot', '3,1,1,1')
.replace('shortdot', '1,1,')
.replace('shortdash', '3,1,')
.replace('longdash', '8,3,')
.replace(/dot/g, '1,3,')
.replace('dash', '4,3,')
.replace(/,$/, '')
.split(','); // ending comma
i = value.length;
while (i--) {
value[i] = pInt(value[i]) * pick(hash['stroke-width'], wrapper['stroke-width']);
}
value = value.join(',');
}
// IE9/MooTools combo: MooTools returns objects instead of numbers and IE9 Beta 2
// is unable to cast them. Test again with final IE9.
} else if (key === 'width') {
value = pInt(value);
// Text alignment
} else if (key === 'align') {
key = 'text-anchor';
value = { left: 'start', center: 'middle', right: 'end' }[value];
// Title requires a subnode, #431
} else if (key === 'title') {
titleNode = element.getElementsByTagName('title')[0];
if (!titleNode) {
titleNode = doc.createElementNS(SVG_NS, 'title');
element.appendChild(titleNode);
}
titleNode.textContent = value;
}
// jQuery animate changes case
if (key === 'strokeWidth') {
key = 'stroke-width';
}
// In Chrome/Win < 6 as well as Batik, the stroke attribute can't be set when the stroke-
// width is 0. #1369
if (key === 'stroke-width' || key === 'stroke') {
wrapper[key] = value;
// Only apply the stroke attribute if the stroke width is defined and larger than 0
if (wrapper.stroke && wrapper['stroke-width']) {
attr(element, 'stroke', wrapper.stroke);
attr(element, 'stroke-width', wrapper['stroke-width']);
wrapper.hasStroke = true;
} else if (key === 'stroke-width' && value === 0 && wrapper.hasStroke) {
element.removeAttribute('stroke');
wrapper.hasStroke = false;
}
skipAttr = true;
}
// symbols
if (wrapper.symbolName && /^(x|y|width|height|r|start|end|innerR|anchorX|anchorY)/.test(key)) {
if (!hasSetSymbolSize) {
wrapper.symbolAttr(hash);
hasSetSymbolSize = true;
}
skipAttr = true;
}
// let the shadow follow the default element
if (shadows && /^(width|height|visibility|x|y|d|transform|cx|cy|r)$/.test(key)) {
i = shadows.length;
while (i--) {
attr(
shadows[i],
key,
key === 'height' ?
mathMax(value - (shadows[i].cutHeight || 0), 0) :
value
);
}
}
// validate heights
if ((key === 'width' || key === 'height') && nodeName === 'rect' && value < 0) {
value = 0;
}
// Record for animation and quick access without polling the DOM
wrapper[key] = value;
if (key === 'text') {
// Delete bBox memo when the text changes
if (value !== wrapper.textStr) {
delete wrapper.bBox;
}
wrapper.textStr = value;
if (wrapper.added) {
renderer.buildText(wrapper);
}
} else if (!skipAttr) {
attr(element, key, value);
}
}
}
// Update transform. Do this outside the loop to prevent redundant updating for batch setting
// of attributes.
if (doTransform) {
wrapper.updateTransform();
}
}
return ret;
},
/**
* Add a class name to an element
*/
addClass: function (className) {
var element = this.element,
currentClassName = attr(element, 'class') || '';
if (currentClassName.indexOf(className) === -1) {
attr(element, 'class', currentClassName + ' ' + className);
}
return this;
},
/* hasClass and removeClass are not (yet) needed
hasClass: function (className) {
return attr(this.element, 'class').indexOf(className) !== -1;
},
removeClass: function (className) {
attr(this.element, 'class', attr(this.element, 'class').replace(className, ''));
return this;
},
*/
/**
* If one of the symbol size affecting parameters are changed,
* check all the others only once for each call to an element's
* .attr() method
* @param {Object} hash
*/
symbolAttr: function (hash) {
var wrapper = this;
each(['x', 'y', 'r', 'start', 'end', 'width', 'height', 'innerR', 'anchorX', 'anchorY'], function (key) {
wrapper[key] = pick(hash[key], wrapper[key]);
});
wrapper.attr({
d: wrapper.renderer.symbols[wrapper.symbolName](
wrapper.x,
wrapper.y,
wrapper.width,
wrapper.height,
wrapper
)
});
},
/**
* Apply a clipping path to this object
* @param {String} id
*/
clip: function (clipRect) {
return this.attr('clip-path', clipRect ? 'url(' + this.renderer.url + '#' + clipRect.id + ')' : NONE);
},
/**
* Calculate the coordinates needed for drawing a rectangle crisply and return the
* calculated attributes
* @param {Number} strokeWidth
* @param {Number} x
* @param {Number} y
* @param {Number} width
* @param {Number} height
*/
crisp: function (strokeWidth, x, y, width, height) {
var wrapper = this,
key,
attribs = {},
values = {},
normalizer;
strokeWidth = strokeWidth || wrapper.strokeWidth || (wrapper.attr && wrapper.attr('stroke-width')) || 0;
normalizer = mathRound(strokeWidth) % 2 / 2; // mathRound because strokeWidth can sometimes have roundoff errors
// normalize for crisp edges
values.x = mathFloor(x || wrapper.x || 0) + normalizer;
values.y = mathFloor(y || wrapper.y || 0) + normalizer;
values.width = mathFloor((width || wrapper.width || 0) - 2 * normalizer);
values.height = mathFloor((height || wrapper.height || 0) - 2 * normalizer);
values.strokeWidth = strokeWidth;
for (key in values) {
if (wrapper[key] !== values[key]) { // only set attribute if changed
wrapper[key] = attribs[key] = values[key];
}
}
return attribs;
},
/**
* Set styles for the element
* @param {Object} styles
*/
css: function (styles) {
/*jslint unparam: true*//* allow unused param a in the regexp function below */
var elemWrapper = this,
elem = elemWrapper.element,
textWidth = styles && styles.width && elem.nodeName.toLowerCase() === 'text',
n,
serializedCss = '',
hyphenate = function (a, b) { return '-' + b.toLowerCase(); };
/*jslint unparam: false*/
// convert legacy
if (styles && styles.color) {
styles.fill = styles.color;
}
// Merge the new styles with the old ones
styles = extend(
elemWrapper.styles,
styles
);
// store object
elemWrapper.styles = styles;
// Don't handle line wrap on canvas
if (useCanVG && textWidth) {
delete styles.width;
}
// serialize and set style attribute
if (isIE && !hasSVG) { // legacy IE doesn't support setting style attribute
if (textWidth) {
delete styles.width;
}
css(elemWrapper.element, styles);
} else {
for (n in styles) {
serializedCss += n.replace(/([A-Z])/g, hyphenate) + ':' + styles[n] + ';';
}
attr(elem, 'style', serializedCss); // #1881
}
// re-build text
if (textWidth && elemWrapper.added) {
elemWrapper.renderer.buildText(elemWrapper);
}
return elemWrapper;
},
/**
* Add an event listener
* @param {String} eventType
* @param {Function} handler
*/
on: function (eventType, handler) {
var svgElement = this,
element = svgElement.element;
// touch
if (hasTouch && eventType === 'click') {
element.ontouchstart = function (e) {
svgElement.touchEventFired = Date.now();
e.preventDefault();
handler.call(element, e);
};
element.onclick = function (e) {
if (userAgent.indexOf('Android') === -1 || Date.now() - (svgElement.touchEventFired || 0) > 1100) { // #2269
handler.call(element, e);
}
};
} else {
// simplest possible event model for internal use
element['on' + eventType] = handler;
}
return this;
},
/**
* Set the coordinates needed to draw a consistent radial gradient across
* pie slices regardless of positioning inside the chart. The format is
* [centerX, centerY, diameter] in pixels.
*/
setRadialReference: function (coordinates) {
this.element.radialReference = coordinates;
return this;
},
/**
* Move an object and its children by x and y values
* @param {Number} x
* @param {Number} y
*/
translate: function (x, y) {
return this.attr({
translateX: x,
translateY: y
});
},
/**
* Invert a group, rotate and flip
*/
invert: function () {
var wrapper = this;
wrapper.inverted = true;
wrapper.updateTransform();
return wrapper;
},
/**
* Apply CSS to HTML elements. This is used in text within SVG rendering and
* by the VML renderer
*/
htmlCss: function (styles) {
var wrapper = this,
element = wrapper.element,
textWidth = styles && element.tagName === 'SPAN' && styles.width;
if (textWidth) {
delete styles.width;
wrapper.textWidth = textWidth;
wrapper.updateTransform();
}
wrapper.styles = extend(wrapper.styles, styles);
css(wrapper.element, styles);
return wrapper;
},
/**
* VML and useHTML method for calculating the bounding box based on offsets
* @param {Boolean} refresh Whether to force a fresh value from the DOM or to
* use the cached value
*
* @return {Object} A hash containing values for x, y, width and height
*/
htmlGetBBox: function () {
var wrapper = this,
element = wrapper.element,
bBox = wrapper.bBox;
// faking getBBox in exported SVG in legacy IE
if (!bBox) {
// faking getBBox in exported SVG in legacy IE (is this a duplicate of the fix for #1079?)
if (element.nodeName === 'text') {
element.style.position = ABSOLUTE;
}
bBox = wrapper.bBox = {
x: element.offsetLeft,
y: element.offsetTop,
width: element.offsetWidth,
height: element.offsetHeight
};
}
return bBox;
},
/**
* VML override private method to update elements based on internal
* properties based on SVG transform
*/
htmlUpdateTransform: function () {
// aligning non added elements is expensive
if (!this.added) {
this.alignOnAdd = true;
return;
}
var wrapper = this,
renderer = wrapper.renderer,
elem = wrapper.element,
translateX = wrapper.translateX || 0,
translateY = wrapper.translateY || 0,
x = wrapper.x || 0,
y = wrapper.y || 0,
align = wrapper.textAlign || 'left',
alignCorrection = { left: 0, center: 0.5, right: 1 }[align],
nonLeft = align && align !== 'left',
shadows = wrapper.shadows;
// apply translate
css(elem, {
marginLeft: translateX,
marginTop: translateY
});
if (shadows) { // used in labels/tooltip
each(shadows, function (shadow) {
css(shadow, {
marginLeft: translateX + 1,
marginTop: translateY + 1
});
});
}
// apply inversion
if (wrapper.inverted) { // wrapper is a group
each(elem.childNodes, function (child) {
renderer.invertChild(child, elem);
});
}
if (elem.tagName === 'SPAN') {
var width, height,
rotation = wrapper.rotation,
baseline,
radians = 0,
costheta = 1,
sintheta = 0,
quad,
textWidth = pInt(wrapper.textWidth),
xCorr = wrapper.xCorr || 0,
yCorr = wrapper.yCorr || 0,
currentTextTransform = [rotation, align, elem.innerHTML, wrapper.textWidth].join(',');
if (currentTextTransform !== wrapper.cTT) { // do the calculations and DOM access only if properties changed
if (defined(rotation)) {
radians = rotation * deg2rad; // deg to rad
costheta = mathCos(radians);
sintheta = mathSin(radians);
wrapper.setSpanRotation(rotation, sintheta, costheta);
}
width = pick(wrapper.elemWidth, elem.offsetWidth);
height = pick(wrapper.elemHeight, elem.offsetHeight);
// update textWidth
if (width > textWidth && /[ \-]/.test(elem.textContent || elem.innerText)) { // #983, #1254
css(elem, {
width: textWidth + PX,
display: 'block',
whiteSpace: 'normal'
});
width = textWidth;
}
// correct x and y
baseline = renderer.fontMetrics(elem.style.fontSize).b;
xCorr = costheta < 0 && -width;
yCorr = sintheta < 0 && -height;
// correct for baseline and corners spilling out after rotation
quad = costheta * sintheta < 0;
xCorr += sintheta * baseline * (quad ? 1 - alignCorrection : alignCorrection);
yCorr -= costheta * baseline * (rotation ? (quad ? alignCorrection : 1 - alignCorrection) : 1);
// correct for the length/height of the text
if (nonLeft) {
xCorr -= width * alignCorrection * (costheta < 0 ? -1 : 1);
if (rotation) {
yCorr -= height * alignCorrection * (sintheta < 0 ? -1 : 1);
}
css(elem, {
textAlign: align
});
}
// record correction
wrapper.xCorr = xCorr;
wrapper.yCorr = yCorr;
}
// apply position with correction
css(elem, {
left: (x + xCorr) + PX,
top: (y + yCorr) + PX
});
// force reflow in webkit to apply the left and top on useHTML element (#1249)
if (isWebKit) {
height = elem.offsetHeight; // assigned to height for JSLint purpose
}
// record current text transform
wrapper.cTT = currentTextTransform;
}
},
/**
* Set the rotation of an individual HTML span
*/
setSpanRotation: function (rotation) {
var rotationStyle = {},
cssTransformKey = isIE ? '-ms-transform' : isWebKit ? '-webkit-transform' : isFirefox ? 'MozTransform' : isOpera ? '-o-transform' : '';
rotationStyle[cssTransformKey] = rotationStyle.transform = 'rotate(' + rotation + 'deg)';
css(this.element, rotationStyle);
},
/**
* Private method to update the transform attribute based on internal
* properties
*/
updateTransform: function () {
var wrapper = this,
translateX = wrapper.translateX || 0,
translateY = wrapper.translateY || 0,
scaleX = wrapper.scaleX,
scaleY = wrapper.scaleY,
inverted = wrapper.inverted,
rotation = wrapper.rotation,
transform;
// flipping affects translate as adjustment for flipping around the group's axis
if (inverted) {
translateX += wrapper.attr('width');
translateY += wrapper.attr('height');
}
// Apply translate. Nearly all transformed elements have translation, so instead
// of checking for translate = 0, do it always (#1767, #1846).
transform = ['translate(' + translateX + ',' + translateY + ')'];
// apply rotation
if (inverted) {
transform.push('rotate(90) scale(-1,1)');
} else if (rotation) { // text rotation
transform.push('rotate(' + rotation + ' ' + (wrapper.x || 0) + ' ' + (wrapper.y || 0) + ')');
}
// apply scale
if (defined(scaleX) || defined(scaleY)) {
transform.push('scale(' + pick(scaleX, 1) + ' ' + pick(scaleY, 1) + ')');
}
if (transform.length) {
attr(wrapper.element, 'transform', transform.join(' '));
}
},
/**
* Bring the element to the front
*/
toFront: function () {
var element = this.element;
element.parentNode.appendChild(element);
return this;
},
/**
* Break down alignment options like align, verticalAlign, x and y
* to x and y relative to the chart.
*
* @param {Object} alignOptions
* @param {Boolean} alignByTranslate
* @param {String[Object} box The box to align to, needs a width and height. When the
* box is a string, it refers to an object in the Renderer. For example, when
* box is 'spacingBox', it refers to Renderer.spacingBox which holds width, height
* x and y properties.
*
*/
align: function (alignOptions, alignByTranslate, box) {
var align,
vAlign,
x,
y,
attribs = {},
alignTo,
renderer = this.renderer,
alignedObjects = renderer.alignedObjects;
// First call on instanciate
if (alignOptions) {
this.alignOptions = alignOptions;
this.alignByTranslate = alignByTranslate;
if (!box || isString(box)) { // boxes other than renderer handle this internally
this.alignTo = alignTo = box || 'renderer';
erase(alignedObjects, this); // prevent duplicates, like legendGroup after resize
alignedObjects.push(this);
box = null; // reassign it below
}
// When called on resize, no arguments are supplied
} else {
alignOptions = this.alignOptions;
alignByTranslate = this.alignByTranslate;
alignTo = this.alignTo;
}
box = pick(box, renderer[alignTo], renderer);
// Assign variables
align = alignOptions.align;
vAlign = alignOptions.verticalAlign;
x = (box.x || 0) + (alignOptions.x || 0); // default: left align
y = (box.y || 0) + (alignOptions.y || 0); // default: top align
// Align
if (align === 'right' || align === 'center') {
x += (box.width - (alignOptions.width || 0)) /
{ right: 1, center: 2 }[align];
}
attribs[alignByTranslate ? 'translateX' : 'x'] = mathRound(x);
// Vertical align
if (vAlign === 'bottom' || vAlign === 'middle') {
y += (box.height - (alignOptions.height || 0)) /
({ bottom: 1, middle: 2 }[vAlign] || 1);
}
attribs[alignByTranslate ? 'translateY' : 'y'] = mathRound(y);
// Animate only if already placed
this[this.placed ? 'animate' : 'attr'](attribs);
this.placed = true;
this.alignAttr = attribs;
return this;
},
/**
* Get the bounding box (width, height, x and y) for the element
*/
getBBox: function () {
var wrapper = this,
bBox = wrapper.bBox,
renderer = wrapper.renderer,
width,
height,
rotation = wrapper.rotation,
element = wrapper.element,
styles = wrapper.styles,
rad = rotation * deg2rad;
if (!bBox) {
// SVG elements
if (element.namespaceURI === SVG_NS || renderer.forExport) {
try { // Fails in Firefox if the container has display: none.
bBox = element.getBBox ?
// SVG: use extend because IE9 is not allowed to change width and height in case
// of rotation (below)
extend({}, element.getBBox()) :
// Canvas renderer and legacy IE in export mode
{
width: element.offsetWidth,
height: element.offsetHeight
};
} catch (e) {}
// If the bBox is not set, the try-catch block above failed. The other condition
// is for Opera that returns a width of -Infinity on hidden elements.
if (!bBox || bBox.width < 0) {
bBox = { width: 0, height: 0 };
}
// VML Renderer or useHTML within SVG
} else {
bBox = wrapper.htmlGetBBox();
}
// True SVG elements as well as HTML elements in modern browsers using the .useHTML option
// need to compensated for rotation
if (renderer.isSVG) {
width = bBox.width;
height = bBox.height;
// Workaround for wrong bounding box in IE9 and IE10 (#1101, #1505, #1669)
if (isIE && styles && styles.fontSize === '11px' && height.toPrecision(3) === '22.7') {
bBox.height = height = 14;
}
// Adjust for rotated text
if (rotation) {
bBox.width = mathAbs(height * mathSin(rad)) + mathAbs(width * mathCos(rad));
bBox.height = mathAbs(height * mathCos(rad)) + mathAbs(width * mathSin(rad));
}
}
wrapper.bBox = bBox;
}
return bBox;
},
/**
* Show the element
*/
show: function () {
return this.attr({ visibility: VISIBLE });
},
/**
* Hide the element
*/
hide: function () {
return this.attr({ visibility: HIDDEN });
},
fadeOut: function (duration) {
var elemWrapper = this;
elemWrapper.animate({
opacity: 0
}, {
duration: duration || 150,
complete: function () {
elemWrapper.hide();
}
});
},
/**
* Add the element
* @param {Object|Undefined} parent Can be an element, an element wrapper or undefined
* to append the element to the renderer.box.
*/
add: function (parent) {
var renderer = this.renderer,
parentWrapper = parent || renderer,
parentNode = parentWrapper.element || renderer.box,
childNodes = parentNode.childNodes,
element = this.element,
zIndex = attr(element, 'zIndex'),
otherElement,
otherZIndex,
i,
inserted;
if (parent) {
this.parentGroup = parent;
}
// mark as inverted
this.parentInverted = parent && parent.inverted;
// build formatted text
if (this.textStr !== undefined) {
renderer.buildText(this);
}
// mark the container as having z indexed children
if (zIndex) {
parentWrapper.handleZ = true;
zIndex = pInt(zIndex);
}
// insert according to this and other elements' zIndex
if (parentWrapper.handleZ) { // this element or any of its siblings has a z index
for (i = 0; i < childNodes.length; i++) {
otherElement = childNodes[i];
otherZIndex = attr(otherElement, 'zIndex');
if (otherElement !== element && (
// insert before the first element with a higher zIndex
pInt(otherZIndex) > zIndex ||
// if no zIndex given, insert before the first element with a zIndex
(!defined(zIndex) && defined(otherZIndex))
)) {
parentNode.insertBefore(element, otherElement);
inserted = true;
break;
}
}
}
// default: append at the end
if (!inserted) {
parentNode.appendChild(element);
}
// mark as added
this.added = true;
// fire an event for internal hooks
fireEvent(this, 'add');
return this;
},
/**
* Removes a child either by removeChild or move to garbageBin.
* Issue 490; in VML removeChild results in Orphaned nodes according to sIEve, discardElement does not.
*/
safeRemoveChild: function (element) {
var parentNode = element.parentNode;
if (parentNode) {
parentNode.removeChild(element);
}
},
/**
* Destroy the element and element wrapper
*/
destroy: function () {
var wrapper = this,
element = wrapper.element || {},
shadows = wrapper.shadows,
parentToClean = wrapper.renderer.isSVG && element.nodeName === 'SPAN' && element.parentNode,
grandParent,
key,
i;
// remove events
element.onclick = element.onmouseout = element.onmouseover = element.onmousemove = element.point = null;
stop(wrapper); // stop running animations
if (wrapper.clipPath) {
wrapper.clipPath = wrapper.clipPath.destroy();
}
// Destroy stops in case this is a gradient object
if (wrapper.stops) {
for (i = 0; i < wrapper.stops.length; i++) {
wrapper.stops[i] = wrapper.stops[i].destroy();
}
wrapper.stops = null;
}
// remove element
wrapper.safeRemoveChild(element);
// destroy shadows
if (shadows) {
each(shadows, function (shadow) {
wrapper.safeRemoveChild(shadow);
});
}
// In case of useHTML, clean up empty containers emulating SVG groups (#1960).
while (parentToClean && parentToClean.childNodes.length === 0) {
grandParent = parentToClean.parentNode;
wrapper.safeRemoveChild(parentToClean);
parentToClean = grandParent;
}
// remove from alignObjects
if (wrapper.alignTo) {
erase(wrapper.renderer.alignedObjects, wrapper);
}
for (key in wrapper) {
delete wrapper[key];
}
return null;
},
/**
* Add a shadow to the element. Must be done after the element is added to the DOM
* @param {Boolean|Object} shadowOptions
*/
shadow: function (shadowOptions, group, cutOff) {
var shadows = [],
i,
shadow,
element = this.element,
strokeWidth,
shadowWidth,
shadowElementOpacity,
// compensate for inverted plot area
transform;
if (shadowOptions) {
shadowWidth = pick(shadowOptions.width, 3);
shadowElementOpacity = (shadowOptions.opacity || 0.15) / shadowWidth;
transform = this.parentInverted ?
'(-1,-1)' :
'(' + pick(shadowOptions.offsetX, 1) + ', ' + pick(shadowOptions.offsetY, 1) + ')';
for (i = 1; i <= shadowWidth; i++) {
shadow = element.cloneNode(0);
strokeWidth = (shadowWidth * 2) + 1 - (2 * i);
attr(shadow, {
'isShadow': 'true',
'stroke': shadowOptions.color || 'black',
'stroke-opacity': shadowElementOpacity * i,
'stroke-width': strokeWidth,
'transform': 'translate' + transform,
'fill': NONE
});
if (cutOff) {
attr(shadow, 'height', mathMax(attr(shadow, 'height') - strokeWidth, 0));
shadow.cutHeight = strokeWidth;
}
if (group) {
group.element.appendChild(shadow);
} else {
element.parentNode.insertBefore(shadow, element);
}
shadows.push(shadow);
}
this.shadows = shadows;
}
return this;
}
};
/**
* The default SVG renderer
*/
var SVGRenderer = function () {
this.init.apply(this, arguments);
};
SVGRenderer.prototype = {
Element: SVGElement,
/**
* Initialize the SVGRenderer
* @param {Object} container
* @param {Number} width
* @param {Number} height
* @param {Boolean} forExport
*/
init: function (container, width, height, forExport) {
var renderer = this,
loc = location,
boxWrapper,
element,
desc;
boxWrapper = renderer.createElement('svg')
.attr({
version: '1.1'
});
element = boxWrapper.element;
container.appendChild(element);
// For browsers other than IE, add the namespace attribute (#1978)
if (container.innerHTML.indexOf('xmlns') === -1) {
attr(element, 'xmlns', SVG_NS);
}
// object properties
renderer.isSVG = true;
renderer.box = element;
renderer.boxWrapper = boxWrapper;
renderer.alignedObjects = [];
// Page url used for internal references. #24, #672, #1070
renderer.url = (isFirefox || isWebKit) && doc.getElementsByTagName('base').length ?
loc.href
.replace(/#.*?$/, '') // remove the hash
.replace(/([\('\)])/g, '\\$1') // escape parantheses and quotes
.replace(/ /g, '%20') : // replace spaces (needed for Safari only)
'';
// Add description
desc = this.createElement('desc').add();
desc.element.appendChild(doc.createTextNode('Created with ' + PRODUCT + ' ' + VERSION));
renderer.defs = this.createElement('defs').add();
renderer.forExport = forExport;
renderer.gradients = {}; // Object where gradient SvgElements are stored
renderer.setSize(width, height, false);
// Issue 110 workaround:
// In Firefox, if a div is positioned by percentage, its pixel position may land
// between pixels. The container itself doesn't display this, but an SVG element
// inside this container will be drawn at subpixel precision. In order to draw
// sharp lines, this must be compensated for. This doesn't seem to work inside
// iframes though (like in jsFiddle).
var subPixelFix, rect;
if (isFirefox && container.getBoundingClientRect) {
renderer.subPixelFix = subPixelFix = function () {
css(container, { left: 0, top: 0 });
rect = container.getBoundingClientRect();
css(container, {
left: (mathCeil(rect.left) - rect.left) + PX,
top: (mathCeil(rect.top) - rect.top) + PX
});
};
// run the fix now
subPixelFix();
// run it on resize
addEvent(win, 'resize', subPixelFix);
}
},
/**
* Detect whether the renderer is hidden. This happens when one of the parent elements
* has display: none. #608.
*/
isHidden: function () {
return !this.boxWrapper.getBBox().width;
},
/**
* Destroys the renderer and its allocated members.
*/
destroy: function () {
var renderer = this,
rendererDefs = renderer.defs;
renderer.box = null;
renderer.boxWrapper = renderer.boxWrapper.destroy();
// Call destroy on all gradient elements
destroyObjectProperties(renderer.gradients || {});
renderer.gradients = null;
// Defs are null in VMLRenderer
// Otherwise, destroy them here.
if (rendererDefs) {
renderer.defs = rendererDefs.destroy();
}
// Remove sub pixel fix handler
// We need to check that there is a handler, otherwise all functions that are registered for event 'resize' are removed
// See issue #982
if (renderer.subPixelFix) {
removeEvent(win, 'resize', renderer.subPixelFix);
}
renderer.alignedObjects = null;
return null;
},
/**
* Create a wrapper for an SVG element
* @param {Object} nodeName
*/
createElement: function (nodeName) {
var wrapper = new this.Element();
wrapper.init(this, nodeName);
return wrapper;
},
/**
* Dummy function for use in canvas renderer
*/
draw: function () {},
/**
* Parse a simple HTML string into SVG tspans
*
* @param {Object} textNode The parent text SVG node
*/
buildText: function (wrapper) {
var textNode = wrapper.element,
renderer = this,
forExport = renderer.forExport,
lines = pick(wrapper.textStr, '').toString()
.replace(/<(b|strong)>/g, '')
.replace(/<(i|em)>/g, '')
.replace(//g, '')
.split(//g),
childNodes = textNode.childNodes,
styleRegex = /style="([^"]+)"/,
hrefRegex = /href="(http[^"]+)"/,
parentX = attr(textNode, 'x'),
textStyles = wrapper.styles,
width = textStyles && textStyles.width && pInt(textStyles.width),
textLineHeight = textStyles && textStyles.lineHeight,
i = childNodes.length;
/// remove old text
while (i--) {
textNode.removeChild(childNodes[i]);
}
if (width && !wrapper.added) {
this.box.appendChild(textNode); // attach it to the DOM to read offset width
}
// remove empty line at end
if (lines[lines.length - 1] === '') {
lines.pop();
}
// build the lines
each(lines, function (line, lineNo) {
var spans, spanNo = 0;
line = line.replace(//g, '|||');
spans = line.split('|||');
each(spans, function (span) {
if (span !== '' || spans.length === 1) {
var attributes = {},
tspan = doc.createElementNS(SVG_NS, 'tspan'),
spanStyle; // #390
if (styleRegex.test(span)) {
spanStyle = span.match(styleRegex)[1].replace(/(;| |^)color([ :])/, '$1fill$2');
attr(tspan, 'style', spanStyle);
}
if (hrefRegex.test(span) && !forExport) { // Not for export - #1529
attr(tspan, 'onclick', 'location.href=\"' + span.match(hrefRegex)[1] + '\"');
css(tspan, { cursor: 'pointer' });
}
span = (span.replace(/<(.|\n)*?>/g, '') || ' ')
.replace(/</g, '<')
.replace(/>/g, '>');
// Nested tags aren't supported, and cause crash in Safari (#1596)
if (span !== ' ') {
// add the text node
tspan.appendChild(doc.createTextNode(span));
if (!spanNo) { // first span in a line, align it to the left
attributes.x = parentX;
} else {
attributes.dx = 0; // #16
}
// add attributes
attr(tspan, attributes);
// first span on subsequent line, add the line height
if (!spanNo && lineNo) {
// allow getting the right offset height in exporting in IE
if (!hasSVG && forExport) {
css(tspan, { display: 'block' });
}
// Set the line height based on the font size of either
// the text element or the tspan element
attr(
tspan,
'dy',
textLineHeight || renderer.fontMetrics(
/px$/.test(tspan.style.fontSize) ?
tspan.style.fontSize :
textStyles.fontSize
).h,
// Safari 6.0.2 - too optimized for its own good (#1539)
// TODO: revisit this with future versions of Safari
isWebKit && tspan.offsetHeight
);
}
// Append it
textNode.appendChild(tspan);
spanNo++;
// check width and apply soft breaks
if (width) {
var words = span.replace(/([^\^])-/g, '$1- ').split(' '), // #1273
tooLong,
actualWidth,
clipHeight = wrapper._clipHeight,
rest = [],
dy = pInt(textLineHeight || 16),
softLineNo = 1,
bBox;
while (words.length || rest.length) {
delete wrapper.bBox; // delete cache
bBox = wrapper.getBBox();
actualWidth = bBox.width;
tooLong = actualWidth > width;
if (!tooLong || words.length === 1) { // new line needed
words = rest;
rest = [];
if (words.length) {
softLineNo++;
if (clipHeight && softLineNo * dy > clipHeight) {
words = ['...'];
wrapper.attr('title', wrapper.textStr);
} else {
tspan = doc.createElementNS(SVG_NS, 'tspan');
attr(tspan, {
dy: dy,
x: parentX
});
if (spanStyle) { // #390
attr(tspan, 'style', spanStyle);
}
textNode.appendChild(tspan);
if (actualWidth > width) { // a single word is pressing it out
width = actualWidth;
}
}
}
} else { // append to existing line tspan
tspan.removeChild(tspan.firstChild);
rest.unshift(words.pop());
}
if (words.length) {
tspan.appendChild(doc.createTextNode(words.join(' ').replace(/- /g, '-')));
}
}
}
}
}
});
});
},
/**
* Create a button with preset states
* @param {String} text
* @param {Number} x
* @param {Number} y
* @param {Function} callback
* @param {Object} normalState
* @param {Object} hoverState
* @param {Object} pressedState
*/
button: function (text, x, y, callback, normalState, hoverState, pressedState, disabledState) {
var label = this.label(text, x, y, null, null, null, null, null, 'button'),
curState = 0,
stateOptions,
stateStyle,
normalStyle,
hoverStyle,
pressedStyle,
disabledStyle,
STYLE = 'style',
verticalGradient = { x1: 0, y1: 0, x2: 0, y2: 1 };
// Normal state - prepare the attributes
normalState = merge({
'stroke-width': 1,
stroke: '#CCCCCC',
fill: {
linearGradient: verticalGradient,
stops: [
[0, '#FEFEFE'],
[1, '#F6F6F6']
]
},
r: 2,
padding: 5,
style: {
color: 'black'
}
}, normalState);
normalStyle = normalState[STYLE];
delete normalState[STYLE];
// Hover state
hoverState = merge(normalState, {
stroke: '#68A',
fill: {
linearGradient: verticalGradient,
stops: [
[0, '#FFF'],
[1, '#ACF']
]
}
}, hoverState);
hoverStyle = hoverState[STYLE];
delete hoverState[STYLE];
// Pressed state
pressedState = merge(normalState, {
stroke: '#68A',
fill: {
linearGradient: verticalGradient,
stops: [
[0, '#9BD'],
[1, '#CDF']
]
}
}, pressedState);
pressedStyle = pressedState[STYLE];
delete pressedState[STYLE];
// Disabled state
disabledState = merge(normalState, {
style: {
color: '#CCC'
}
}, disabledState);
disabledStyle = disabledState[STYLE];
delete disabledState[STYLE];
// Add the events. IE9 and IE10 need mouseover and mouseout to funciton (#667).
addEvent(label.element, isIE ? 'mouseover' : 'mouseenter', function () {
if (curState !== 3) {
label.attr(hoverState)
.css(hoverStyle);
}
});
addEvent(label.element, isIE ? 'mouseout' : 'mouseleave', function () {
if (curState !== 3) {
stateOptions = [normalState, hoverState, pressedState][curState];
stateStyle = [normalStyle, hoverStyle, pressedStyle][curState];
label.attr(stateOptions)
.css(stateStyle);
}
});
label.setState = function (state) {
label.state = curState = state;
if (!state) {
label.attr(normalState)
.css(normalStyle);
} else if (state === 2) {
label.attr(pressedState)
.css(pressedStyle);
} else if (state === 3) {
label.attr(disabledState)
.css(disabledStyle);
}
};
return label
.on('click', function () {
if (curState !== 3) {
callback.call(label);
}
})
.attr(normalState)
.css(extend({ cursor: 'default' }, normalStyle));
},
/**
* Make a straight line crisper by not spilling out to neighbour pixels
* @param {Array} points
* @param {Number} width
*/
crispLine: function (points, width) {
// points format: [M, 0, 0, L, 100, 0]
// normalize to a crisp line
if (points[1] === points[4]) {
// Substract due to #1129. Now bottom and left axis gridlines behave the same.
points[1] = points[4] = mathRound(points[1]) - (width % 2 / 2);
}
if (points[2] === points[5]) {
points[2] = points[5] = mathRound(points[2]) + (width % 2 / 2);
}
return points;
},
/**
* Draw a path
* @param {Array} path An SVG path in array form
*/
path: function (path) {
var attr = {
fill: NONE
};
if (isArray(path)) {
attr.d = path;
} else if (isObject(path)) { // attributes
extend(attr, path);
}
return this.createElement('path').attr(attr);
},
/**
* Draw and return an SVG circle
* @param {Number} x The x position
* @param {Number} y The y position
* @param {Number} r The radius
*/
circle: function (x, y, r) {
var attr = isObject(x) ?
x :
{
x: x,
y: y,
r: r
};
return this.createElement('circle').attr(attr);
},
/**
* Draw and return an arc
* @param {Number} x X position
* @param {Number} y Y position
* @param {Number} r Radius
* @param {Number} innerR Inner radius like used in donut charts
* @param {Number} start Starting angle
* @param {Number} end Ending angle
*/
arc: function (x, y, r, innerR, start, end) {
var arc;
if (isObject(x)) {
y = x.y;
r = x.r;
innerR = x.innerR;
start = x.start;
end = x.end;
x = x.x;
}
// Arcs are defined as symbols for the ability to set
// attributes in attr and animate
arc = this.symbol('arc', x || 0, y || 0, r || 0, r || 0, {
innerR: innerR || 0,
start: start || 0,
end: end || 0
});
arc.r = r; // #959
return arc;
},
/**
* Draw and return a rectangle
* @param {Number} x Left position
* @param {Number} y Top position
* @param {Number} width
* @param {Number} height
* @param {Number} r Border corner radius
* @param {Number} strokeWidth A stroke width can be supplied to allow crisp drawing
*/
rect: function (x, y, width, height, r, strokeWidth) {
r = isObject(x) ? x.r : r;
var wrapper = this.createElement('rect').attr({
rx: r,
ry: r,
fill: NONE
});
return wrapper.attr(
isObject(x) ?
x :
// do not crispify when an object is passed in (as in column charts)
wrapper.crisp(strokeWidth, x, y, mathMax(width, 0), mathMax(height, 0))
);
},
/**
* Resize the box and re-align all aligned elements
* @param {Object} width
* @param {Object} height
* @param {Boolean} animate
*
*/
setSize: function (width, height, animate) {
var renderer = this,
alignedObjects = renderer.alignedObjects,
i = alignedObjects.length;
renderer.width = width;
renderer.height = height;
renderer.boxWrapper[pick(animate, true) ? 'animate' : 'attr']({
width: width,
height: height
});
while (i--) {
alignedObjects[i].align();
}
},
/**
* Create a group
* @param {String} name The group will be given a class name of 'highcharts-{name}'.
* This can be used for styling and scripting.
*/
g: function (name) {
var elem = this.createElement('g');
return defined(name) ? elem.attr({ 'class': PREFIX + name }) : elem;
},
/**
* Display an image
* @param {String} src
* @param {Number} x
* @param {Number} y
* @param {Number} width
* @param {Number} height
*/
image: function (src, x, y, width, height) {
var attribs = {
preserveAspectRatio: NONE
},
elemWrapper;
// optional properties
if (arguments.length > 1) {
extend(attribs, {
x: x,
y: y,
width: width,
height: height
});
}
elemWrapper = this.createElement('image').attr(attribs);
// set the href in the xlink namespace
if (elemWrapper.element.setAttributeNS) {
elemWrapper.element.setAttributeNS('http://www.w3.org/1999/xlink',
'href', src);
} else {
// could be exporting in IE
// using href throws "not supported" in ie7 and under, requries regex shim to fix later
elemWrapper.element.setAttribute('hc-svg-href', src);
}
return elemWrapper;
},
/**
* Draw a symbol out of pre-defined shape paths from the namespace 'symbol' object.
*
* @param {Object} symbol
* @param {Object} x
* @param {Object} y
* @param {Object} radius
* @param {Object} options
*/
symbol: function (symbol, x, y, width, height, options) {
var obj,
// get the symbol definition function
symbolFn = this.symbols[symbol],
// check if there's a path defined for this symbol
path = symbolFn && symbolFn(
mathRound(x),
mathRound(y),
width,
height,
options
),
imageElement,
imageRegex = /^url\((.*?)\)$/,
imageSrc,
imageSize,
centerImage;
if (path) {
obj = this.path(path);
// expando properties for use in animate and attr
extend(obj, {
symbolName: symbol,
x: x,
y: y,
width: width,
height: height
});
if (options) {
extend(obj, options);
}
// image symbols
} else if (imageRegex.test(symbol)) {
// On image load, set the size and position
centerImage = function (img, size) {
if (img.element) { // it may be destroyed in the meantime (#1390)
img.attr({
width: size[0],
height: size[1]
});
if (!img.alignByTranslate) { // #185
img.translate(
mathRound((width - size[0]) / 2), // #1378
mathRound((height - size[1]) / 2)
);
}
}
};
imageSrc = symbol.match(imageRegex)[1];
imageSize = symbolSizes[imageSrc];
// Ireate the image synchronously, add attribs async
obj = this.image(imageSrc)
.attr({
x: x,
y: y
});
obj.isImg = true;
if (imageSize) {
centerImage(obj, imageSize);
} else {
// Initialize image to be 0 size so export will still function if there's no cached sizes.
//
obj.attr({ width: 0, height: 0 });
// Create a dummy JavaScript image to get the width and height. Due to a bug in IE < 8,
// the created element must be assigned to a variable in order to load (#292).
imageElement = createElement('img', {
onload: function () {
centerImage(obj, symbolSizes[imageSrc] = [this.width, this.height]);
},
src: imageSrc
});
}
}
return obj;
},
/**
* An extendable collection of functions for defining symbol paths.
*/
symbols: {
'circle': function (x, y, w, h) {
var cpw = 0.166 * w;
return [
M, x + w / 2, y,
'C', x + w + cpw, y, x + w + cpw, y + h, x + w / 2, y + h,
'C', x - cpw, y + h, x - cpw, y, x + w / 2, y,
'Z'
];
},
'square': function (x, y, w, h) {
return [
M, x, y,
L, x + w, y,
x + w, y + h,
x, y + h,
'Z'
];
},
'triangle': function (x, y, w, h) {
return [
M, x + w / 2, y,
L, x + w, y + h,
x, y + h,
'Z'
];
},
'triangle-down': function (x, y, w, h) {
return [
M, x, y,
L, x + w, y,
x + w / 2, y + h,
'Z'
];
},
'diamond': function (x, y, w, h) {
return [
M, x + w / 2, y,
L, x + w, y + h / 2,
x + w / 2, y + h,
x, y + h / 2,
'Z'
];
},
'arc': function (x, y, w, h, options) {
var start = options.start,
radius = options.r || w || h,
end = options.end - 0.001, // to prevent cos and sin of start and end from becoming equal on 360 arcs (related: #1561)
innerRadius = options.innerR,
open = options.open,
cosStart = mathCos(start),
sinStart = mathSin(start),
cosEnd = mathCos(end),
sinEnd = mathSin(end),
longArc = options.end - start < mathPI ? 0 : 1;
return [
M,
x + radius * cosStart,
y + radius * sinStart,
'A', // arcTo
radius, // x radius
radius, // y radius
0, // slanting
longArc, // long or short arc
1, // clockwise
x + radius * cosEnd,
y + radius * sinEnd,
open ? M : L,
x + innerRadius * cosEnd,
y + innerRadius * sinEnd,
'A', // arcTo
innerRadius, // x radius
innerRadius, // y radius
0, // slanting
longArc, // long or short arc
0, // clockwise
x + innerRadius * cosStart,
y + innerRadius * sinStart,
open ? '' : 'Z' // close
];
}
},
/**
* Define a clipping rectangle
* @param {String} id
* @param {Number} x
* @param {Number} y
* @param {Number} width
* @param {Number} height
*/
clipRect: function (x, y, width, height) {
var wrapper,
id = PREFIX + idCounter++,
clipPath = this.createElement('clipPath').attr({
id: id
}).add(this.defs);
wrapper = this.rect(x, y, width, height, 0).add(clipPath);
wrapper.id = id;
wrapper.clipPath = clipPath;
return wrapper;
},
/**
* Take a color and return it if it's a string, make it a gradient if it's a
* gradient configuration object. Prior to Highstock, an array was used to define
* a linear gradient with pixel positions relative to the SVG. In newer versions
* we change the coordinates to apply relative to the shape, using coordinates
* 0-1 within the shape. To preserve backwards compatibility, linearGradient
* in this definition is an object of x1, y1, x2 and y2.
*
* @param {Object} color The color or config object
*/
color: function (color, elem, prop) {
var renderer = this,
colorObject,
regexRgba = /^rgba/,
gradName,
gradAttr,
gradients,
gradientObject,
stops,
stopColor,
stopOpacity,
radialReference,
n,
id,
key = [];
// Apply linear or radial gradients
if (color && color.linearGradient) {
gradName = 'linearGradient';
} else if (color && color.radialGradient) {
gradName = 'radialGradient';
}
if (gradName) {
gradAttr = color[gradName];
gradients = renderer.gradients;
stops = color.stops;
radialReference = elem.radialReference;
// Keep < 2.2 kompatibility
if (isArray(gradAttr)) {
color[gradName] = gradAttr = {
x1: gradAttr[0],
y1: gradAttr[1],
x2: gradAttr[2],
y2: gradAttr[3],
gradientUnits: 'userSpaceOnUse'
};
}
// Correct the radial gradient for the radial reference system
if (gradName === 'radialGradient' && radialReference && !defined(gradAttr.gradientUnits)) {
gradAttr = merge(gradAttr, {
cx: (radialReference[0] - radialReference[2] / 2) + gradAttr.cx * radialReference[2],
cy: (radialReference[1] - radialReference[2] / 2) + gradAttr.cy * radialReference[2],
r: gradAttr.r * radialReference[2],
gradientUnits: 'userSpaceOnUse'
});
}
// Build the unique key to detect whether we need to create a new element (#1282)
for (n in gradAttr) {
if (n !== 'id') {
key.push(n, gradAttr[n]);
}
}
for (n in stops) {
key.push(stops[n]);
}
key = key.join(',');
// Check if a gradient object with the same config object is created within this renderer
if (gradients[key]) {
id = gradients[key].id;
} else {
// Set the id and create the element
gradAttr.id = id = PREFIX + idCounter++;
gradients[key] = gradientObject = renderer.createElement(gradName)
.attr(gradAttr)
.add(renderer.defs);
// The gradient needs to keep a list of stops to be able to destroy them
gradientObject.stops = [];
each(stops, function (stop) {
var stopObject;
if (regexRgba.test(stop[1])) {
colorObject = Color(stop[1]);
stopColor = colorObject.get('rgb');
stopOpacity = colorObject.get('a');
} else {
stopColor = stop[1];
stopOpacity = 1;
}
stopObject = renderer.createElement('stop').attr({
offset: stop[0],
'stop-color': stopColor,
'stop-opacity': stopOpacity
}).add(gradientObject);
// Add the stop element to the gradient
gradientObject.stops.push(stopObject);
});
}
// Return the reference to the gradient object
return 'url(' + renderer.url + '#' + id + ')';
// Webkit and Batik can't show rgba.
} else if (regexRgba.test(color)) {
colorObject = Color(color);
attr(elem, prop + '-opacity', colorObject.get('a'));
return colorObject.get('rgb');
} else {
// Remove the opacity attribute added above. Does not throw if the attribute is not there.
elem.removeAttribute(prop + '-opacity');
return color;
}
},
/**
* Add text to the SVG object
* @param {String} str
* @param {Number} x Left position
* @param {Number} y Top position
* @param {Boolean} useHTML Use HTML to render the text
*/
text: function (str, x, y, useHTML) {
// declare variables
var renderer = this,
defaultChartStyle = defaultOptions.chart.style,
fakeSVG = useCanVG || (!hasSVG && renderer.forExport),
wrapper;
if (useHTML && !renderer.forExport) {
return renderer.html(str, x, y);
}
x = mathRound(pick(x, 0));
y = mathRound(pick(y, 0));
wrapper = renderer.createElement('text')
.attr({
x: x,
y: y,
text: str
})
.css({
fontFamily: defaultChartStyle.fontFamily,
fontSize: defaultChartStyle.fontSize
});
// Prevent wrapping from creating false offsetWidths in export in legacy IE (#1079, #1063)
if (fakeSVG) {
wrapper.css({
position: ABSOLUTE
});
}
wrapper.x = x;
wrapper.y = y;
return wrapper;
},
/**
* Create HTML text node. This is used by the VML renderer as well as the SVG
* renderer through the useHTML option.
*
* @param {String} str
* @param {Number} x
* @param {Number} y
*/
html: function (str, x, y) {
var defaultChartStyle = defaultOptions.chart.style,
wrapper = this.createElement('span'),
attrSetters = wrapper.attrSetters,
element = wrapper.element,
renderer = wrapper.renderer;
// Text setter
attrSetters.text = function (value) {
if (value !== element.innerHTML) {
delete this.bBox;
}
element.innerHTML = value;
return false;
};
// Various setters which rely on update transform
attrSetters.x = attrSetters.y = attrSetters.align = function (value, key) {
if (key === 'align') {
key = 'textAlign'; // Do not overwrite the SVGElement.align method. Same as VML.
}
wrapper[key] = value;
wrapper.htmlUpdateTransform();
return false;
};
// Set the default attributes
wrapper.attr({
text: str,
x: mathRound(x),
y: mathRound(y)
})
.css({
position: ABSOLUTE,
whiteSpace: 'nowrap',
fontFamily: defaultChartStyle.fontFamily,
fontSize: defaultChartStyle.fontSize
});
// Use the HTML specific .css method
wrapper.css = wrapper.htmlCss;
// This is specific for HTML within SVG
if (renderer.isSVG) {
wrapper.add = function (svgGroupWrapper) {
var htmlGroup,
container = renderer.box.parentNode,
parentGroup,
parents = [];
// Create a mock group to hold the HTML elements
if (svgGroupWrapper) {
htmlGroup = svgGroupWrapper.div;
if (!htmlGroup) {
// Read the parent chain into an array and read from top down
parentGroup = svgGroupWrapper;
while (parentGroup) {
parents.push(parentGroup);
// Move up to the next parent group
parentGroup = parentGroup.parentGroup;
}
// Ensure dynamically updating position when any parent is translated
each(parents.reverse(), function (parentGroup) {
var htmlGroupStyle;
// Create a HTML div and append it to the parent div to emulate
// the SVG group structure
htmlGroup = parentGroup.div = parentGroup.div || createElement(DIV, {
className: attr(parentGroup.element, 'class')
}, {
position: ABSOLUTE,
left: (parentGroup.translateX || 0) + PX,
top: (parentGroup.translateY || 0) + PX
}, htmlGroup || container); // the top group is appended to container
// Shortcut
htmlGroupStyle = htmlGroup.style;
// Set listeners to update the HTML div's position whenever the SVG group
// position is changed
extend(parentGroup.attrSetters, {
translateX: function (value) {
htmlGroupStyle.left = value + PX;
},
translateY: function (value) {
htmlGroupStyle.top = value + PX;
},
visibility: function (value, key) {
htmlGroupStyle[key] = value;
}
});
});
}
} else {
htmlGroup = container;
}
htmlGroup.appendChild(element);
// Shared with VML:
wrapper.added = true;
if (wrapper.alignOnAdd) {
wrapper.htmlUpdateTransform();
}
return wrapper;
};
}
return wrapper;
},
/**
* Utility to return the baseline offset and total line height from the font size
*/
fontMetrics: function (fontSize) {
fontSize = pInt(fontSize || 11);
// Empirical values found by comparing font size and bounding box height.
// Applies to the default font family. http://jsfiddle.net/highcharts/7xvn7/
var lineHeight = fontSize < 24 ? fontSize + 4 : mathRound(fontSize * 1.2),
baseline = mathRound(lineHeight * 0.8);
return {
h: lineHeight,
b: baseline
};
},
/**
* Add a label, a text item that can hold a colored or gradient background
* as well as a border and shadow.
* @param {string} str
* @param {Number} x
* @param {Number} y
* @param {String} shape
* @param {Number} anchorX In case the shape has a pointer, like a flag, this is the
* coordinates it should be pinned to
* @param {Number} anchorY
* @param {Boolean} baseline Whether to position the label relative to the text baseline,
* like renderer.text, or to the upper border of the rectangle.
* @param {String} className Class name for the group
*/
label: function (str, x, y, shape, anchorX, anchorY, useHTML, baseline, className) {
var renderer = this,
wrapper = renderer.g(className),
text = renderer.text('', 0, 0, useHTML)
.attr({
zIndex: 1
}),
//.add(wrapper),
box,
bBox,
alignFactor = 0,
padding = 3,
paddingLeft = 0,
width,
height,
wrapperX,
wrapperY,
crispAdjust = 0,
deferredAttr = {},
baselineOffset,
attrSetters = wrapper.attrSetters,
needsBox;
/**
* This function runs after the label is added to the DOM (when the bounding box is
* available), and after the text of the label is updated to detect the new bounding
* box and reflect it in the border box.
*/
function updateBoxSize() {
var boxX,
boxY,
style = text.element.style;
bBox = (width === undefined || height === undefined || wrapper.styles.textAlign) &&
text.getBBox();
wrapper.width = (width || bBox.width || 0) + 2 * padding + paddingLeft;
wrapper.height = (height || bBox.height || 0) + 2 * padding;
// update the label-scoped y offset
baselineOffset = padding + renderer.fontMetrics(style && style.fontSize).b;
if (needsBox) {
// create the border box if it is not already present
if (!box) {
boxX = mathRound(-alignFactor * padding);
boxY = baseline ? -baselineOffset : 0;
wrapper.box = box = shape ?
renderer.symbol(shape, boxX, boxY, wrapper.width, wrapper.height) :
renderer.rect(boxX, boxY, wrapper.width, wrapper.height, 0, deferredAttr[STROKE_WIDTH]);
box.add(wrapper);
}
// apply the box attributes
if (!box.isImg) { // #1630
box.attr(merge({
width: wrapper.width,
height: wrapper.height
}, deferredAttr));
}
deferredAttr = null;
}
}
/**
* This function runs after setting text or padding, but only if padding is changed
*/
function updateTextPadding() {
var styles = wrapper.styles,
textAlign = styles && styles.textAlign,
x = paddingLeft + padding * (1 - alignFactor),
y;
// determin y based on the baseline
y = baseline ? 0 : baselineOffset;
// compensate for alignment
if (defined(width) && (textAlign === 'center' || textAlign === 'right')) {
x += { center: 0.5, right: 1 }[textAlign] * (width - bBox.width);
}
// update if anything changed
if (x !== text.x || y !== text.y) {
text.attr({
x: x,
y: y
});
}
// record current values
text.x = x;
text.y = y;
}
/**
* Set a box attribute, or defer it if the box is not yet created
* @param {Object} key
* @param {Object} value
*/
function boxAttr(key, value) {
if (box) {
box.attr(key, value);
} else {
deferredAttr[key] = value;
}
}
function getSizeAfterAdd() {
text.add(wrapper);
wrapper.attr({
text: str, // alignment is available now
x: x,
y: y
});
if (box && defined(anchorX)) {
wrapper.attr({
anchorX: anchorX,
anchorY: anchorY
});
}
}
/**
* After the text element is added, get the desired size of the border box
* and add it before the text in the DOM.
*/
addEvent(wrapper, 'add', getSizeAfterAdd);
/*
* Add specific attribute setters.
*/
// only change local variables
attrSetters.width = function (value) {
width = value;
return false;
};
attrSetters.height = function (value) {
height = value;
return false;
};
attrSetters.padding = function (value) {
if (defined(value) && value !== padding) {
padding = value;
updateTextPadding();
}
return false;
};
attrSetters.paddingLeft = function (value) {
if (defined(value) && value !== paddingLeft) {
paddingLeft = value;
updateTextPadding();
}
return false;
};
// change local variable and set attribue as well
attrSetters.align = function (value) {
alignFactor = { left: 0, center: 0.5, right: 1 }[value];
return false; // prevent setting text-anchor on the group
};
// apply these to the box and the text alike
attrSetters.text = function (value, key) {
text.attr(key, value);
updateBoxSize();
updateTextPadding();
return false;
};
// apply these to the box but not to the text
attrSetters[STROKE_WIDTH] = function (value, key) {
needsBox = true;
crispAdjust = value % 2 / 2;
boxAttr(key, value);
return false;
};
attrSetters.stroke = attrSetters.fill = attrSetters.r = function (value, key) {
if (key === 'fill') {
needsBox = true;
}
boxAttr(key, value);
return false;
};
attrSetters.anchorX = function (value, key) {
anchorX = value;
boxAttr(key, value + crispAdjust - wrapperX);
return false;
};
attrSetters.anchorY = function (value, key) {
anchorY = value;
boxAttr(key, value - wrapperY);
return false;
};
// rename attributes
attrSetters.x = function (value) {
wrapper.x = value; // for animation getter
value -= alignFactor * ((width || bBox.width) + padding);
wrapperX = mathRound(value);
wrapper.attr('translateX', wrapperX);
return false;
};
attrSetters.y = function (value) {
wrapperY = wrapper.y = mathRound(value);
wrapper.attr('translateY', wrapperY);
return false;
};
// Redirect certain methods to either the box or the text
var baseCss = wrapper.css;
return extend(wrapper, {
/**
* Pick up some properties and apply them to the text instead of the wrapper
*/
css: function (styles) {
if (styles) {
var textStyles = {};
styles = merge(styles); // create a copy to avoid altering the original object (#537)
each(['fontSize', 'fontWeight', 'fontFamily', 'color', 'lineHeight', 'width', 'textDecoration', 'textShadow'], function (prop) {
if (styles[prop] !== UNDEFINED) {
textStyles[prop] = styles[prop];
delete styles[prop];
}
});
text.css(textStyles);
}
return baseCss.call(wrapper, styles);
},
/**
* Return the bounding box of the box, not the group
*/
getBBox: function () {
return {
width: bBox.width + 2 * padding,
height: bBox.height + 2 * padding,
x: bBox.x - padding,
y: bBox.y - padding
};
},
/**
* Apply the shadow to the box
*/
shadow: function (b) {
if (box) {
box.shadow(b);
}
return wrapper;
},
/**
* Destroy and release memory.
*/
destroy: function () {
removeEvent(wrapper, 'add', getSizeAfterAdd);
// Added by button implementation
removeEvent(wrapper.element, 'mouseenter');
removeEvent(wrapper.element, 'mouseleave');
if (text) {
text = text.destroy();
}
if (box) {
box = box.destroy();
}
// Call base implementation to destroy the rest
SVGElement.prototype.destroy.call(wrapper);
// Release local pointers (#1298)
wrapper = renderer = updateBoxSize = updateTextPadding = boxAttr = getSizeAfterAdd = null;
}
});
}
}; // end SVGRenderer
// general renderer
Renderer = SVGRenderer;
/* ****************************************************************************
* *
* START OF INTERNET EXPLORER <= 8 SPECIFIC CODE *
* *
* For applications and websites that don't need IE support, like platform *
* targeted mobile apps and web apps, this code can be removed. *
* *
*****************************************************************************/
/**
* @constructor
*/
var VMLRenderer, VMLElement;
if (!hasSVG && !useCanVG) {
/**
* The VML element wrapper.
*/
Highcharts.VMLElement = VMLElement = {
/**
* Initialize a new VML element wrapper. It builds the markup as a string
* to minimize DOM traffic.
* @param {Object} renderer
* @param {Object} nodeName
*/
init: function (renderer, nodeName) {
var wrapper = this,
markup = ['<', nodeName, ' filled="f" stroked="f"'],
style = ['position: ', ABSOLUTE, ';'],
isDiv = nodeName === DIV;
// divs and shapes need size
if (nodeName === 'shape' || isDiv) {
style.push('left:0;top:0;width:1px;height:1px;');
}
style.push('visibility: ', isDiv ? HIDDEN : VISIBLE);
markup.push(' style="', style.join(''), '"/>');
// create element with default attributes and style
if (nodeName) {
markup = isDiv || nodeName === 'span' || nodeName === 'img' ?
markup.join('')
: renderer.prepVML(markup);
wrapper.element = createElement(markup);
}
wrapper.renderer = renderer;
wrapper.attrSetters = {};
},
/**
* Add the node to the given parent
* @param {Object} parent
*/
add: function (parent) {
var wrapper = this,
renderer = wrapper.renderer,
element = wrapper.element,
box = renderer.box,
inverted = parent && parent.inverted,
// get the parent node
parentNode = parent ?
parent.element || parent :
box;
// if the parent group is inverted, apply inversion on all children
if (inverted) { // only on groups
renderer.invertChild(element, parentNode);
}
// append it
parentNode.appendChild(element);
// align text after adding to be able to read offset
wrapper.added = true;
if (wrapper.alignOnAdd && !wrapper.deferUpdateTransform) {
wrapper.updateTransform();
}
// fire an event for internal hooks
fireEvent(wrapper, 'add');
return wrapper;
},
/**
* VML always uses htmlUpdateTransform
*/
updateTransform: SVGElement.prototype.htmlUpdateTransform,
/**
* Set the rotation of a span with oldIE's filter
*/
setSpanRotation: function (rotation, sintheta, costheta) {
// Adjust for alignment and rotation. Rotation of useHTML content is not yet implemented
// but it can probably be implemented for Firefox 3.5+ on user request. FF3.5+
// has support for CSS3 transform. The getBBox method also needs to be updated
// to compensate for the rotation, like it currently does for SVG.
// Test case: http://highcharts.com/tests/?file=text-rotation
css(this.element, {
filter: rotation ? ['progid:DXImageTransform.Microsoft.Matrix(M11=', costheta,
', M12=', -sintheta, ', M21=', sintheta, ', M22=', costheta,
', sizingMethod=\'auto expand\')'].join('') : NONE
});
},
/**
* Converts a subset of an SVG path definition to its VML counterpart. Takes an array
* as the parameter and returns a string.
*/
pathToVML: function (value) {
// convert paths
var i = value.length,
path = [],
clockwise;
while (i--) {
// Multiply by 10 to allow subpixel precision.
// Substracting half a pixel seems to make the coordinates
// align with SVG, but this hasn't been tested thoroughly
if (isNumber(value[i])) {
path[i] = mathRound(value[i] * 10) - 5;
} else if (value[i] === 'Z') { // close the path
path[i] = 'x';
} else {
path[i] = value[i];
// When the start X and end X coordinates of an arc are too close,
// they are rounded to the same value above. In this case, substract 1 from the end X
// position. #760, #1371.
if (value.isArc && (value[i] === 'wa' || value[i] === 'at')) {
clockwise = value[i] === 'wa' ? 1 : -1; // #1642
if (path[i + 5] === path[i + 7]) {
path[i + 7] -= clockwise;
}
// Start and end Y (#1410)
if (path[i + 6] === path[i + 8]) {
path[i + 8] -= clockwise;
}
}
}
}
// Loop up again to handle path shortcuts (#2132)
/*while (i++ < path.length) {
if (path[i] === 'H') { // horizontal line to
path[i] = 'L';
path.splice(i + 2, 0, path[i - 1]);
} else if (path[i] === 'V') { // vertical line to
path[i] = 'L';
path.splice(i + 1, 0, path[i - 2]);
}
}*/
return path.join(' ') || 'x';
},
/**
* Get or set attributes
*/
attr: function (hash, val) {
var wrapper = this,
key,
value,
i,
result,
element = wrapper.element || {},
elemStyle = element.style,
nodeName = element.nodeName,
renderer = wrapper.renderer,
symbolName = wrapper.symbolName,
hasSetSymbolSize,
shadows = wrapper.shadows,
skipAttr,
attrSetters = wrapper.attrSetters,
ret = wrapper;
// single key-value pair
if (isString(hash) && defined(val)) {
key = hash;
hash = {};
hash[key] = val;
}
// used as a getter, val is undefined
if (isString(hash)) {
key = hash;
if (key === 'strokeWidth' || key === 'stroke-width') {
ret = wrapper.strokeweight;
} else {
ret = wrapper[key];
}
// setter
} else {
for (key in hash) {
value = hash[key];
skipAttr = false;
// check for a specific attribute setter
result = attrSetters[key] && attrSetters[key].call(wrapper, value, key);
if (result !== false && value !== null) { // #620
if (result !== UNDEFINED) {
value = result; // the attribute setter has returned a new value to set
}
// prepare paths
// symbols
if (symbolName && /^(x|y|r|start|end|width|height|innerR|anchorX|anchorY)/.test(key)) {
// if one of the symbol size affecting parameters are changed,
// check all the others only once for each call to an element's
// .attr() method
if (!hasSetSymbolSize) {
wrapper.symbolAttr(hash);
hasSetSymbolSize = true;
}
skipAttr = true;
} else if (key === 'd') {
value = value || [];
wrapper.d = value.join(' '); // used in getter for animation
element.path = value = wrapper.pathToVML(value);
// update shadows
if (shadows) {
i = shadows.length;
while (i--) {
shadows[i].path = shadows[i].cutOff ? this.cutOffPath(value, shadows[i].cutOff) : value;
}
}
skipAttr = true;
// handle visibility
} else if (key === 'visibility') {
// let the shadow follow the default element
if (shadows) {
i = shadows.length;
while (i--) {
shadows[i].style[key] = value;
}
}
// Instead of toggling the visibility CSS property, move the div out of the viewport.
// This works around #61 and #586
if (nodeName === 'DIV') {
value = value === HIDDEN ? '-999em' : 0;
// In order to redraw, IE7 needs the div to be visible when tucked away
// outside the viewport. So the visibility is actually opposite of
// the expected value. This applies to the tooltip only.
if (!docMode8) {
elemStyle[key] = value ? VISIBLE : HIDDEN;
}
key = 'top';
}
elemStyle[key] = value;
skipAttr = true;
// directly mapped to css
} else if (key === 'zIndex') {
if (value) {
elemStyle[key] = value;
}
skipAttr = true;
// x, y, width, height
} else if (inArray(key, ['x', 'y', 'width', 'height']) !== -1) {
wrapper[key] = value; // used in getter
if (key === 'x' || key === 'y') {
key = { x: 'left', y: 'top' }[key];
} else {
value = mathMax(0, value); // don't set width or height below zero (#311)
}
// clipping rectangle special
if (wrapper.updateClipping) {
wrapper[key] = value; // the key is now 'left' or 'top' for 'x' and 'y'
wrapper.updateClipping();
} else {
// normal
elemStyle[key] = value;
}
skipAttr = true;
// class name
} else if (key === 'class' && nodeName === 'DIV') {
// IE8 Standards mode has problems retrieving the className
element.className = value;
// stroke
} else if (key === 'stroke') {
value = renderer.color(value, element, key);
key = 'strokecolor';
// stroke width
} else if (key === 'stroke-width' || key === 'strokeWidth') {
element.stroked = value ? true : false;
key = 'strokeweight';
wrapper[key] = value; // used in getter, issue #113
if (isNumber(value)) {
value += PX;
}
// dashStyle
} else if (key === 'dashstyle') {
var strokeElem = element.getElementsByTagName('stroke')[0] ||
createElement(renderer.prepVML([' 1) {
obj.attr({
x: x,
y: y,
width: width,
height: height
});
}
return obj;
},
/**
* VML uses a shape for rect to overcome bugs and rotation problems
*/
rect: function (x, y, width, height, r, strokeWidth) {
var wrapper = this.symbol('rect');
wrapper.r = isObject(x) ? x.r : r;
//return wrapper.attr(wrapper.crisp(strokeWidth, x, y, mathMax(width, 0), mathMax(height, 0)));
return wrapper.attr(
isObject(x) ?
x :
// do not crispify when an object is passed in (as in column charts)
wrapper.crisp(strokeWidth, x, y, mathMax(width, 0), mathMax(height, 0))
);
},
/**
* In the VML renderer, each child of an inverted div (group) is inverted
* @param {Object} element
* @param {Object} parentNode
*/
invertChild: function (element, parentNode) {
var parentStyle = parentNode.style;
css(element, {
flip: 'x',
left: pInt(parentStyle.width) - 1,
top: pInt(parentStyle.height) - 1,
rotation: -90
});
},
/**
* Symbol definitions that override the parent SVG renderer's symbols
*
*/
symbols: {
// VML specific arc function
arc: function (x, y, w, h, options) {
var start = options.start,
end = options.end,
radius = options.r || w || h,
innerRadius = options.innerR,
cosStart = mathCos(start),
sinStart = mathSin(start),
cosEnd = mathCos(end),
sinEnd = mathSin(end),
ret;
if (end - start === 0) { // no angle, don't show it.
return ['x'];
}
ret = [
'wa', // clockwise arc to
x - radius, // left
y - radius, // top
x + radius, // right
y + radius, // bottom
x + radius * cosStart, // start x
y + radius * sinStart, // start y
x + radius * cosEnd, // end x
y + radius * sinEnd // end y
];
if (options.open && !innerRadius) {
ret.push(
'e',
M,
x,// - innerRadius,
y// - innerRadius
);
}
ret.push(
'at', // anti clockwise arc to
x - innerRadius, // left
y - innerRadius, // top
x + innerRadius, // right
y + innerRadius, // bottom
x + innerRadius * cosEnd, // start x
y + innerRadius * sinEnd, // start y
x + innerRadius * cosStart, // end x
y + innerRadius * sinStart, // end y
'x', // finish path
'e' // close
);
ret.isArc = true;
return ret;
},
// Add circle symbol path. This performs significantly faster than v:oval.
circle: function (x, y, w, h, wrapper) {
if (wrapper) {
w = h = 2 * wrapper.r;
}
// Center correction, #1682
if (wrapper && wrapper.isCircle) {
x -= w / 2;
y -= h / 2;
}
// Return the path
return [
'wa', // clockwisearcto
x, // left
y, // top
x + w, // right
y + h, // bottom
x + w, // start x
y + h / 2, // start y
x + w, // end x
y + h / 2, // end y
//'x', // finish path
'e' // close
];
},
/**
* Add rectangle symbol path which eases rotation and omits arcsize problems
* compared to the built-in VML roundrect shape
*
* @param {Number} left Left position
* @param {Number} top Top position
* @param {Number} r Border radius
* @param {Object} options Width and height
*/
rect: function (left, top, width, height, options) {
var right = left + width,
bottom = top + height,
ret,
r;
// No radius, return the more lightweight square
if (!defined(options) || !options.r) {
ret = SVGRenderer.prototype.symbols.square.apply(0, arguments);
// Has radius add arcs for the corners
} else {
r = mathMin(options.r, width, height);
ret = [
M,
left + r, top,
L,
right - r, top,
'wa',
right - 2 * r, top,
right, top + 2 * r,
right - r, top,
right, top + r,
L,
right, bottom - r,
'wa',
right - 2 * r, bottom - 2 * r,
right, bottom,
right, bottom - r,
right - r, bottom,
L,
left + r, bottom,
'wa',
left, bottom - 2 * r,
left + 2 * r, bottom,
left + r, bottom,
left, bottom - r,
L,
left, top + r,
'wa',
left, top,
left + 2 * r, top + 2 * r,
left, top + r,
left + r, top,
'x',
'e'
];
}
return ret;
}
}
};
Highcharts.VMLRenderer = VMLRenderer = function () {
this.init.apply(this, arguments);
};
VMLRenderer.prototype = merge(SVGRenderer.prototype, VMLRendererExtension);
// general renderer
Renderer = VMLRenderer;
}
/* ****************************************************************************
* *
* END OF INTERNET EXPLORER <= 8 SPECIFIC CODE *
* *
*****************************************************************************/
/* ****************************************************************************
* *
* START OF ANDROID < 3 SPECIFIC CODE. THIS CAN BE REMOVED IF YOU'RE NOT *
* TARGETING THAT SYSTEM. *
* *
*****************************************************************************/
var CanVGRenderer,
CanVGController;
if (useCanVG) {
/**
* The CanVGRenderer is empty from start to keep the source footprint small.
* When requested, the CanVGController downloads the rest of the source packaged
* together with the canvg library.
*/
Highcharts.CanVGRenderer = CanVGRenderer = function () {
// Override the global SVG namespace to fake SVG/HTML that accepts CSS
SVG_NS = 'http://www.w3.org/1999/xhtml';
};
/**
* Start with an empty symbols object. This is needed when exporting is used (exporting.src.js will add a few symbols), but
* the implementation from SvgRenderer will not be merged in until first render.
*/
CanVGRenderer.prototype.symbols = {};
/**
* Handles on demand download of canvg rendering support.
*/
CanVGController = (function () {
// List of renderering calls
var deferredRenderCalls = [];
/**
* When downloaded, we are ready to draw deferred charts.
*/
function drawDeferred() {
var callLength = deferredRenderCalls.length,
callIndex;
// Draw all pending render calls
for (callIndex = 0; callIndex < callLength; callIndex++) {
deferredRenderCalls[callIndex]();
}
// Clear the list
deferredRenderCalls = [];
}
return {
push: function (func, scriptLocation) {
// Only get the script once
if (deferredRenderCalls.length === 0) {
getScript(scriptLocation, drawDeferred);
}
// Register render call
deferredRenderCalls.push(func);
}
};
}());
Renderer = CanVGRenderer;
} // end CanVGRenderer
/* ****************************************************************************
* *
* END OF ANDROID < 3 SPECIFIC CODE *
* *
*****************************************************************************/
/**
* The Tick class
*/
function Tick(axis, pos, type, noLabel) {
this.axis = axis;
this.pos = pos;
this.type = type || '';
this.isNew = true;
if (!type && !noLabel) {
this.addLabel();
}
}
Tick.prototype = {
/**
* Write the tick label
*/
addLabel: function () {
var tick = this,
axis = tick.axis,
options = axis.options,
chart = axis.chart,
horiz = axis.horiz,
categories = axis.categories,
names = axis.series[0] && axis.series[0].names,
pos = tick.pos,
labelOptions = options.labels,
str,
tickPositions = axis.tickPositions,
width = (horiz && categories &&
!labelOptions.step && !labelOptions.staggerLines &&
!labelOptions.rotation &&
chart.plotWidth / tickPositions.length) ||
(!horiz && (chart.margin[3] || chart.chartWidth * 0.33)), // #1580, #1931
isFirst = pos === tickPositions[0],
isLast = pos === tickPositions[tickPositions.length - 1],
css,
attr,
value = categories ?
pick(categories[pos], names && names[pos], pos) :
pos,
label = tick.label,
tickPositionInfo = tickPositions.info,
dateTimeLabelFormat;
// Set the datetime label format. If a higher rank is set for this position, use that. If not,
// use the general format.
if (axis.isDatetimeAxis && tickPositionInfo) {
dateTimeLabelFormat = options.dateTimeLabelFormats[tickPositionInfo.higherRanks[pos] || tickPositionInfo.unitName];
}
// set properties for access in render method
tick.isFirst = isFirst;
tick.isLast = isLast;
// get the string
str = axis.labelFormatter.call({
axis: axis,
chart: chart,
isFirst: isFirst,
isLast: isLast,
dateTimeLabelFormat: dateTimeLabelFormat,
value: axis.isLog ? correctFloat(lin2log(value)) : value
});
// prepare CSS
css = width && { width: mathMax(1, mathRound(width - 2 * (labelOptions.padding || 10))) + PX };
css = extend(css, labelOptions.style);
// first call
if (!defined(label)) {
attr = {
align: axis.labelAlign
};
if (isNumber(labelOptions.rotation)) {
attr.rotation = labelOptions.rotation;
}
if (width && labelOptions.ellipsis) {
attr._clipHeight = axis.len / tickPositions.length;
}
tick.label =
defined(str) && labelOptions.enabled ?
chart.renderer.text(
str,
0,
0,
labelOptions.useHTML
)
.attr(attr)
// without position absolute, IE export sometimes is wrong
.css(css)
.add(axis.labelGroup) :
null;
// update
} else if (label) {
label.attr({
text: str
})
.css(css);
}
},
/**
* Get the offset height or width of the label
*/
getLabelSize: function () {
var label = this.label,
axis = this.axis;
return label ?
((this.labelBBox = label.getBBox()))[axis.horiz ? 'height' : 'width'] :
0;
},
/**
* Find how far the labels extend to the right and left of the tick's x position. Used for anti-collision
* detection with overflow logic.
*/
getLabelSides: function () {
var bBox = this.labelBBox, // assume getLabelSize has run at this point
axis = this.axis,
options = axis.options,
labelOptions = options.labels,
width = bBox.width,
leftSide = width * { left: 0, center: 0.5, right: 1 }[axis.labelAlign] - labelOptions.x;
return [-leftSide, width - leftSide];
},
/**
* Handle the label overflow by adjusting the labels to the left and right edge, or
* hide them if they collide into the neighbour label.
*/
handleOverflow: function (index, xy) {
var show = true,
axis = this.axis,
chart = axis.chart,
isFirst = this.isFirst,
isLast = this.isLast,
x = xy.x,
reversed = axis.reversed,
tickPositions = axis.tickPositions;
if (isFirst || isLast) {
var sides = this.getLabelSides(),
leftSide = sides[0],
rightSide = sides[1],
plotLeft = chart.plotLeft,
plotRight = plotLeft + axis.len,
neighbour = axis.ticks[tickPositions[index + (isFirst ? 1 : -1)]],
neighbourEdge = neighbour && neighbour.label.xy && neighbour.label.xy.x + neighbour.getLabelSides()[isFirst ? 0 : 1];
if ((isFirst && !reversed) || (isLast && reversed)) {
// Is the label spilling out to the left of the plot area?
if (x + leftSide < plotLeft) {
// Align it to plot left
x = plotLeft - leftSide;
// Hide it if it now overlaps the neighbour label
if (neighbour && x + rightSide > neighbourEdge) {
show = false;
}
}
} else {
// Is the label spilling out to the right of the plot area?
if (x + rightSide > plotRight) {
// Align it to plot right
x = plotRight - rightSide;
// Hide it if it now overlaps the neighbour label
if (neighbour && x + leftSide < neighbourEdge) {
show = false;
}
}
}
// Set the modified x position of the label
xy.x = x;
}
return show;
},
/**
* Get the x and y position for ticks and labels
*/
getPosition: function (horiz, pos, tickmarkOffset, old) {
var axis = this.axis,
chart = axis.chart,
cHeight = (old && chart.oldChartHeight) || chart.chartHeight;
return {
x: horiz ?
axis.translate(pos + tickmarkOffset, null, null, old) + axis.transB :
axis.left + axis.offset + (axis.opposite ? ((old && chart.oldChartWidth) || chart.chartWidth) - axis.right - axis.left : 0),
y: horiz ?
cHeight - axis.bottom + axis.offset - (axis.opposite ? axis.height : 0) :
cHeight - axis.translate(pos + tickmarkOffset, null, null, old) - axis.transB
};
},
/**
* Get the x, y position of the tick label
*/
getLabelPosition: function (x, y, label, horiz, labelOptions, tickmarkOffset, index, step) {
var axis = this.axis,
transA = axis.transA,
reversed = axis.reversed,
staggerLines = axis.staggerLines,
baseline = axis.chart.renderer.fontMetrics(labelOptions.style.fontSize).b,
rotation = labelOptions.rotation;
x = x + labelOptions.x - (tickmarkOffset && horiz ?
tickmarkOffset * transA * (reversed ? -1 : 1) : 0);
y = y + labelOptions.y - (tickmarkOffset && !horiz ?
tickmarkOffset * transA * (reversed ? 1 : -1) : 0);
// Correct for rotation (#1764)
if (rotation && axis.side === 2) {
y -= baseline - baseline * mathCos(rotation * deg2rad);
}
// Vertically centered
if (!defined(labelOptions.y) && !rotation) { // #1951
y += baseline - label.getBBox().height / 2;
}
// Correct for staggered labels
if (staggerLines) {
y += (index / (step || 1) % staggerLines) * (axis.labelOffset / staggerLines);
}
return {
x: x,
y: y
};
},
/**
* Extendible method to return the path of the marker
*/
getMarkPath: function (x, y, tickLength, tickWidth, horiz, renderer) {
return renderer.crispLine([
M,
x,
y,
L,
x + (horiz ? 0 : -tickLength),
y + (horiz ? tickLength : 0)
], tickWidth);
},
/**
* Put everything in place
*
* @param index {Number}
* @param old {Boolean} Use old coordinates to prepare an animation into new position
*/
render: function (index, old, opacity) {
var tick = this,
axis = tick.axis,
options = axis.options,
chart = axis.chart,
renderer = chart.renderer,
horiz = axis.horiz,
type = tick.type,
label = tick.label,
pos = tick.pos,
labelOptions = options.labels,
gridLine = tick.gridLine,
gridPrefix = type ? type + 'Grid' : 'grid',
tickPrefix = type ? type + 'Tick' : 'tick',
gridLineWidth = options[gridPrefix + 'LineWidth'],
gridLineColor = options[gridPrefix + 'LineColor'],
dashStyle = options[gridPrefix + 'LineDashStyle'],
tickLength = options[tickPrefix + 'Length'],
tickWidth = options[tickPrefix + 'Width'] || 0,
tickColor = options[tickPrefix + 'Color'],
tickPosition = options[tickPrefix + 'Position'],
gridLinePath,
mark = tick.mark,
markPath,
step = labelOptions.step,
attribs,
show = true,
tickmarkOffset = axis.tickmarkOffset,
xy = tick.getPosition(horiz, pos, tickmarkOffset, old),
x = xy.x,
y = xy.y,
reverseCrisp = ((horiz && x === axis.pos + axis.len) || (!horiz && y === axis.pos)) ? -1 : 1, // #1480, #1687
staggerLines = axis.staggerLines;
this.isActive = true;
// create the grid line
if (gridLineWidth) {
gridLinePath = axis.getPlotLinePath(pos + tickmarkOffset, gridLineWidth * reverseCrisp, old, true);
if (gridLine === UNDEFINED) {
attribs = {
stroke: gridLineColor,
'stroke-width': gridLineWidth
};
if (dashStyle) {
attribs.dashstyle = dashStyle;
}
if (!type) {
attribs.zIndex = 1;
}
if (old) {
attribs.opacity = 0;
}
tick.gridLine = gridLine =
gridLineWidth ?
renderer.path(gridLinePath)
.attr(attribs).add(axis.gridGroup) :
null;
}
// If the parameter 'old' is set, the current call will be followed
// by another call, therefore do not do any animations this time
if (!old && gridLine && gridLinePath) {
gridLine[tick.isNew ? 'attr' : 'animate']({
d: gridLinePath,
opacity: opacity
});
}
}
// create the tick mark
if (tickWidth && tickLength) {
// negate the length
if (tickPosition === 'inside') {
tickLength = -tickLength;
}
if (axis.opposite) {
tickLength = -tickLength;
}
markPath = tick.getMarkPath(x, y, tickLength, tickWidth * reverseCrisp, horiz, renderer);
if (mark) { // updating
mark.animate({
d: markPath,
opacity: opacity
});
} else { // first time
tick.mark = renderer.path(
markPath
).attr({
stroke: tickColor,
'stroke-width': tickWidth,
opacity: opacity
}).add(axis.axisGroup);
}
}
// the label is created on init - now move it into place
if (label && !isNaN(x)) {
label.xy = xy = tick.getLabelPosition(x, y, label, horiz, labelOptions, tickmarkOffset, index, step);
// Apply show first and show last. If the tick is both first and last, it is
// a single centered tick, in which case we show the label anyway (#2100).
if ((tick.isFirst && !tick.isLast && !pick(options.showFirstLabel, 1)) ||
(tick.isLast && !tick.isFirst && !pick(options.showLastLabel, 1))) {
show = false;
// Handle label overflow and show or hide accordingly
} else if (!staggerLines && horiz && labelOptions.overflow === 'justify' && !tick.handleOverflow(index, xy)) {
show = false;
}
// apply step
if (step && index % step) {
// show those indices dividable by step
show = false;
}
// Set the new position, and show or hide
if (show && !isNaN(xy.y)) {
xy.opacity = opacity;
label[tick.isNew ? 'attr' : 'animate'](xy);
tick.isNew = false;
} else {
label.attr('y', -9999); // #1338
}
}
},
/**
* Destructor for the tick prototype
*/
destroy: function () {
destroyObjectProperties(this, this.axis);
}
};
/**
* The object wrapper for plot lines and plot bands
* @param {Object} options
*/
function PlotLineOrBand(axis, options) {
this.axis = axis;
if (options) {
this.options = options;
this.id = options.id;
}
}
PlotLineOrBand.prototype = {
/**
* Render the plot line or plot band. If it is already existing,
* move it.
*/
render: function () {
var plotLine = this,
axis = plotLine.axis,
horiz = axis.horiz,
halfPointRange = (axis.pointRange || 0) / 2,
options = plotLine.options,
optionsLabel = options.label,
label = plotLine.label,
width = options.width,
to = options.to,
from = options.from,
isBand = defined(from) && defined(to),
value = options.value,
dashStyle = options.dashStyle,
svgElem = plotLine.svgElem,
path = [],
addEvent,
eventType,
xs,
ys,
x,
y,
color = options.color,
zIndex = options.zIndex,
events = options.events,
attribs,
renderer = axis.chart.renderer;
// logarithmic conversion
if (axis.isLog) {
from = log2lin(from);
to = log2lin(to);
value = log2lin(value);
}
// plot line
if (width) {
path = axis.getPlotLinePath(value, width);
attribs = {
stroke: color,
'stroke-width': width
};
if (dashStyle) {
attribs.dashstyle = dashStyle;
}
} else if (isBand) { // plot band
// keep within plot area
from = mathMax(from, axis.min - halfPointRange);
to = mathMin(to, axis.max + halfPointRange);
path = axis.getPlotBandPath(from, to, options);
attribs = {
fill: color
};
if (options.borderWidth) {
attribs.stroke = options.borderColor;
attribs['stroke-width'] = options.borderWidth;
}
} else {
return;
}
// zIndex
if (defined(zIndex)) {
attribs.zIndex = zIndex;
}
// common for lines and bands
if (svgElem) {
if (path) {
svgElem.animate({
d: path
}, null, svgElem.onGetPath);
} else {
svgElem.hide();
svgElem.onGetPath = function () {
svgElem.show();
};
}
} else if (path && path.length) {
plotLine.svgElem = svgElem = renderer.path(path)
.attr(attribs).add();
// events
if (events) {
addEvent = function (eventType) {
svgElem.on(eventType, function (e) {
events[eventType].apply(plotLine, [e]);
});
};
for (eventType in events) {
addEvent(eventType);
}
}
}
// the plot band/line label
if (optionsLabel && defined(optionsLabel.text) && path && path.length && axis.width > 0 && axis.height > 0) {
// apply defaults
optionsLabel = merge({
align: horiz && isBand && 'center',
x: horiz ? !isBand && 4 : 10,
verticalAlign : !horiz && isBand && 'middle',
y: horiz ? isBand ? 16 : 10 : isBand ? 6 : -4,
rotation: horiz && !isBand && 90
}, optionsLabel);
// add the SVG element
if (!label) {
plotLine.label = label = renderer.text(
optionsLabel.text,
0,
0,
optionsLabel.useHTML
)
.attr({
align: optionsLabel.textAlign || optionsLabel.align,
rotation: optionsLabel.rotation,
zIndex: zIndex
})
.css(optionsLabel.style)
.add();
}
// get the bounding box and align the label
xs = [path[1], path[4], pick(path[6], path[1])];
ys = [path[2], path[5], pick(path[7], path[2])];
x = arrayMin(xs);
y = arrayMin(ys);
label.align(optionsLabel, false, {
x: x,
y: y,
width: arrayMax(xs) - x,
height: arrayMax(ys) - y
});
label.show();
} else if (label) { // move out of sight
label.hide();
}
// chainable
return plotLine;
},
/**
* Remove the plot line or band
*/
destroy: function () {
// remove it from the lookup
erase(this.axis.plotLinesAndBands, this);
delete this.axis;
destroyObjectProperties(this);
}
};
/**
* The class for stack items
*/
function StackItem(axis, options, isNegative, x, stackOption, stacking) {
var inverted = axis.chart.inverted;
this.axis = axis;
// Tells if the stack is negative
this.isNegative = isNegative;
// Save the options to be able to style the label
this.options = options;
// Save the x value to be able to position the label later
this.x = x;
// Initialize total value
this.total = null;
// This will keep each points' extremes stored by series.index
this.points = {};
// Save the stack option on the series configuration object, and whether to treat it as percent
this.stack = stackOption;
this.percent = stacking === 'percent';
// The align options and text align varies on whether the stack is negative and
// if the chart is inverted or not.
// First test the user supplied value, then use the dynamic.
this.alignOptions = {
align: options.align || (inverted ? (isNegative ? 'left' : 'right') : 'center'),
verticalAlign: options.verticalAlign || (inverted ? 'middle' : (isNegative ? 'bottom' : 'top')),
y: pick(options.y, inverted ? 4 : (isNegative ? 14 : -6)),
x: pick(options.x, inverted ? (isNegative ? -6 : 6) : 0)
};
this.textAlign = options.textAlign || (inverted ? (isNegative ? 'right' : 'left') : 'center');
}
StackItem.prototype = {
destroy: function () {
destroyObjectProperties(this, this.axis);
},
/**
* Renders the stack total label and adds it to the stack label group.
*/
render: function (group) {
var options = this.options,
formatOption = options.format,
str = formatOption ?
format(formatOption, this) :
options.formatter.call(this); // format the text in the label
// Change the text to reflect the new total and set visibility to hidden in case the serie is hidden
if (this.label) {
this.label.attr({text: str, visibility: HIDDEN});
// Create new label
} else {
this.label =
this.axis.chart.renderer.text(str, 0, 0, options.useHTML) // dummy positions, actual position updated with setOffset method in columnseries
.css(options.style) // apply style
.attr({
align: this.textAlign, // fix the text-anchor
rotation: options.rotation, // rotation
visibility: HIDDEN // hidden until setOffset is called
})
.add(group); // add to the labels-group
}
},
/**
* Sets the offset that the stack has from the x value and repositions the label.
*/
setOffset: function (xOffset, xWidth) {
var stackItem = this,
axis = stackItem.axis,
chart = axis.chart,
inverted = chart.inverted,
neg = this.isNegative, // special treatment is needed for negative stacks
y = axis.translate(this.percent ? 100 : this.total, 0, 0, 0, 1), // stack value translated mapped to chart coordinates
yZero = axis.translate(0), // stack origin
h = mathAbs(y - yZero), // stack height
x = chart.xAxis[0].translate(this.x) + xOffset, // stack x position
plotHeight = chart.plotHeight,
stackBox = { // this is the box for the complete stack
x: inverted ? (neg ? y : y - h) : x,
y: inverted ? plotHeight - x - xWidth : (neg ? (plotHeight - y - h) : plotHeight - y),
width: inverted ? h : xWidth,
height: inverted ? xWidth : h
},
label = this.label,
alignAttr;
if (label) {
label.align(this.alignOptions, null, stackBox); // align the label to the box
// Set visibility (#678)
alignAttr = label.alignAttr;
label.attr({
visibility: this.options.crop === false || chart.isInsidePlot(alignAttr.x, alignAttr.y) ?
(hasSVG ? 'inherit' : VISIBLE) :
HIDDEN
});
}
}
};
/**
* Create a new axis object
* @param {Object} chart
* @param {Object} options
*/
function Axis() {
this.init.apply(this, arguments);
}
Axis.prototype = {
/**
* Default options for the X axis - the Y axis has extended defaults
*/
defaultOptions: {
// allowDecimals: null,
// alternateGridColor: null,
// categories: [],
dateTimeLabelFormats: {
millisecond: '%H:%M:%S.%L',
second: '%H:%M:%S',
minute: '%H:%M',
hour: '%H:%M',
day: '%e. %b',
week: '%e. %b',
month: '%b \'%y',
year: '%Y'
},
endOnTick: false,
gridLineColor: '#C0C0C0',
// gridLineDashStyle: 'solid',
// gridLineWidth: 0,
// reversed: false,
labels: defaultLabelOptions,
// { step: null },
lineColor: '#C0D0E0',
lineWidth: 1,
//linkedTo: null,
//max: undefined,
//min: undefined,
minPadding: 0.01,
maxPadding: 0.01,
//minRange: null,
minorGridLineColor: '#E0E0E0',
// minorGridLineDashStyle: null,
minorGridLineWidth: 1,
minorTickColor: '#A0A0A0',
//minorTickInterval: null,
minorTickLength: 2,
minorTickPosition: 'outside', // inside or outside
//minorTickWidth: 0,
//opposite: false,
//offset: 0,
//plotBands: [{
// events: {},
// zIndex: 1,
// labels: { align, x, verticalAlign, y, style, rotation, textAlign }
//}],
//plotLines: [{
// events: {}
// dashStyle: {}
// zIndex:
// labels: { align, x, verticalAlign, y, style, rotation, textAlign }
//}],
//reversed: false,
// showFirstLabel: true,
// showLastLabel: true,
startOfWeek: 1,
startOnTick: false,
tickColor: '#C0D0E0',
//tickInterval: null,
tickLength: 5,
tickmarkPlacement: 'between', // on or between
tickPixelInterval: 100,
tickPosition: 'outside',
tickWidth: 1,
title: {
//text: null,
align: 'middle', // low, middle or high
//margin: 0 for horizontal, 10 for vertical axes,
//rotation: 0,
//side: 'outside',
style: {
color: '#4d759e',
//font: defaultFont.replace('normal', 'bold')
fontWeight: 'bold'
}
//x: 0,
//y: 0
},
type: 'linear' // linear, logarithmic or datetime
},
/**
* This options set extends the defaultOptions for Y axes
*/
defaultYAxisOptions: {
endOnTick: true,
gridLineWidth: 1,
tickPixelInterval: 72,
showLastLabel: true,
labels: {
x: -8,
y: 3
},
lineWidth: 0,
maxPadding: 0.05,
minPadding: 0.05,
startOnTick: true,
tickWidth: 0,
title: {
rotation: 270,
text: 'Values'
},
stackLabels: {
enabled: false,
//align: dynamic,
//y: dynamic,
//x: dynamic,
//verticalAlign: dynamic,
//textAlign: dynamic,
//rotation: 0,
formatter: function () {
return numberFormat(this.total, -1);
},
style: defaultLabelOptions.style
}
},
/**
* These options extend the defaultOptions for left axes
*/
defaultLeftAxisOptions: {
labels: {
x: -8,
y: null
},
title: {
rotation: 270
}
},
/**
* These options extend the defaultOptions for right axes
*/
defaultRightAxisOptions: {
labels: {
x: 8,
y: null
},
title: {
rotation: 90
}
},
/**
* These options extend the defaultOptions for bottom axes
*/
defaultBottomAxisOptions: {
labels: {
x: 0,
y: 14
// overflow: undefined,
// staggerLines: null
},
title: {
rotation: 0
}
},
/**
* These options extend the defaultOptions for left axes
*/
defaultTopAxisOptions: {
labels: {
x: 0,
y: -5
// overflow: undefined
// staggerLines: null
},
title: {
rotation: 0
}
},
/**
* Initialize the axis
*/
init: function (chart, userOptions) {
var isXAxis = userOptions.isX,
axis = this;
// Flag, is the axis horizontal
axis.horiz = chart.inverted ? !isXAxis : isXAxis;
// Flag, isXAxis
axis.isXAxis = isXAxis;
axis.xOrY = isXAxis ? 'x' : 'y';
axis.opposite = userOptions.opposite; // needed in setOptions
axis.side = axis.horiz ?
(axis.opposite ? 0 : 2) : // top : bottom
(axis.opposite ? 1 : 3); // right : left
axis.setOptions(userOptions);
var options = this.options,
type = options.type,
isDatetimeAxis = type === 'datetime';
axis.labelFormatter = options.labels.formatter || axis.defaultLabelFormatter; // can be overwritten by dynamic format
// Flag, stagger lines or not
axis.userOptions = userOptions;
//axis.axisTitleMargin = UNDEFINED,// = options.title.margin,
axis.minPixelPadding = 0;
//axis.ignoreMinPadding = UNDEFINED; // can be set to true by a column or bar series
//axis.ignoreMaxPadding = UNDEFINED;
axis.chart = chart;
axis.reversed = options.reversed;
axis.zoomEnabled = options.zoomEnabled !== false;
// Initial categories
axis.categories = options.categories || type === 'category';
// Elements
//axis.axisGroup = UNDEFINED;
//axis.gridGroup = UNDEFINED;
//axis.axisTitle = UNDEFINED;
//axis.axisLine = UNDEFINED;
// Shorthand types
axis.isLog = type === 'logarithmic';
axis.isDatetimeAxis = isDatetimeAxis;
// Flag, if axis is linked to another axis
axis.isLinked = defined(options.linkedTo);
// Linked axis.
//axis.linkedParent = UNDEFINED;
// Tick positions
//axis.tickPositions = UNDEFINED; // array containing predefined positions
// Tick intervals
//axis.tickInterval = UNDEFINED;
//axis.minorTickInterval = UNDEFINED;
axis.tickmarkOffset = (axis.categories && options.tickmarkPlacement === 'between') ? 0.5 : 0;
// Major ticks
axis.ticks = {};
// Minor ticks
axis.minorTicks = {};
//axis.tickAmount = UNDEFINED;
// List of plotLines/Bands
axis.plotLinesAndBands = [];
// Alternate bands
axis.alternateBands = {};
// Axis metrics
//axis.left = UNDEFINED;
//axis.top = UNDEFINED;
//axis.width = UNDEFINED;
//axis.height = UNDEFINED;
//axis.bottom = UNDEFINED;
//axis.right = UNDEFINED;
//axis.transA = UNDEFINED;
//axis.transB = UNDEFINED;
//axis.oldTransA = UNDEFINED;
axis.len = 0;
//axis.oldMin = UNDEFINED;
//axis.oldMax = UNDEFINED;
//axis.oldUserMin = UNDEFINED;
//axis.oldUserMax = UNDEFINED;
//axis.oldAxisLength = UNDEFINED;
axis.minRange = axis.userMinRange = options.minRange || options.maxZoom;
axis.range = options.range;
axis.offset = options.offset || 0;
// Dictionary for stacks
axis.stacks = {};
axis.oldStacks = {};
// Dictionary for stacks max values
axis.stackExtremes = {};
// Min and max in the data
//axis.dataMin = UNDEFINED,
//axis.dataMax = UNDEFINED,
// The axis range
axis.max = null;
axis.min = null;
// User set min and max
//axis.userMin = UNDEFINED,
//axis.userMax = UNDEFINED,
// Run Axis
var eventType,
events = axis.options.events;
// Register
if (inArray(axis, chart.axes) === -1) { // don't add it again on Axis.update()
chart.axes.push(axis);
chart[isXAxis ? 'xAxis' : 'yAxis'].push(axis);
}
axis.series = axis.series || []; // populated by Series
// inverted charts have reversed xAxes as default
if (chart.inverted && isXAxis && axis.reversed === UNDEFINED) {
axis.reversed = true;
}
axis.removePlotBand = axis.removePlotBandOrLine;
axis.removePlotLine = axis.removePlotBandOrLine;
// register event listeners
for (eventType in events) {
addEvent(axis, eventType, events[eventType]);
}
// extend logarithmic axis
if (axis.isLog) {
axis.val2lin = log2lin;
axis.lin2val = lin2log;
}
},
/**
* Merge and set options
*/
setOptions: function (userOptions) {
this.options = merge(
this.defaultOptions,
this.isXAxis ? {} : this.defaultYAxisOptions,
[this.defaultTopAxisOptions, this.defaultRightAxisOptions,
this.defaultBottomAxisOptions, this.defaultLeftAxisOptions][this.side],
merge(
defaultOptions[this.isXAxis ? 'xAxis' : 'yAxis'], // if set in setOptions (#1053)
userOptions
)
);
},
/**
* Update the axis with a new options structure
*/
update: function (newOptions, redraw) {
var chart = this.chart;
newOptions = chart.options[this.xOrY + 'Axis'][this.options.index] = merge(this.userOptions, newOptions);
this.destroy(true);
this._addedPlotLB = this.userMin = this.userMax = UNDEFINED; // #1611, #2306
this.init(chart, extend(newOptions, { events: UNDEFINED }));
chart.isDirtyBox = true;
if (pick(redraw, true)) {
chart.redraw();
}
},
/**
* Remove the axis from the chart
*/
remove: function (redraw) {
var chart = this.chart,
key = this.xOrY + 'Axis'; // xAxis or yAxis
// Remove associated series
each(this.series, function (series) {
series.remove(false);
});
// Remove the axis
erase(chart.axes, this);
erase(chart[key], this);
chart.options[key].splice(this.options.index, 1);
each(chart[key], function (axis, i) { // Re-index, #1706
axis.options.index = i;
});
this.destroy();
chart.isDirtyBox = true;
if (pick(redraw, true)) {
chart.redraw();
}
},
/**
* The default label formatter. The context is a special config object for the label.
*/
defaultLabelFormatter: function () {
var axis = this.axis,
value = this.value,
categories = axis.categories,
dateTimeLabelFormat = this.dateTimeLabelFormat,
numericSymbols = defaultOptions.lang.numericSymbols,
i = numericSymbols && numericSymbols.length,
multi,
ret,
formatOption = axis.options.labels.format,
// make sure the same symbol is added for all labels on a linear axis
numericSymbolDetector = axis.isLog ? value : axis.tickInterval;
if (formatOption) {
ret = format(formatOption, this);
} else if (categories) {
ret = value;
} else if (dateTimeLabelFormat) { // datetime axis
ret = dateFormat(dateTimeLabelFormat, value);
} else if (i && numericSymbolDetector >= 1000) {
// Decide whether we should add a numeric symbol like k (thousands) or M (millions).
// If we are to enable this in tooltip or other places as well, we can move this
// logic to the numberFormatter and enable it by a parameter.
while (i-- && ret === UNDEFINED) {
multi = Math.pow(1000, i + 1);
if (numericSymbolDetector >= multi && numericSymbols[i] !== null) {
ret = numberFormat(value / multi, -1) + numericSymbols[i];
}
}
}
if (ret === UNDEFINED) {
if (value >= 1000) { // add thousands separators
ret = numberFormat(value, 0);
} else { // small numbers
ret = numberFormat(value, -1);
}
}
return ret;
},
/**
* Get the minimum and maximum for the series of each axis
*/
getSeriesExtremes: function () {
var axis = this,
chart = axis.chart;
axis.hasVisibleSeries = false;
// reset dataMin and dataMax in case we're redrawing
axis.dataMin = axis.dataMax = null;
// reset cached stacking extremes
axis.stackExtremes = {};
axis.buildStacks();
// loop through this axis' series
each(axis.series, function (series) {
if (series.visible || !chart.options.chart.ignoreHiddenSeries) {
var seriesOptions = series.options,
xData,
threshold = seriesOptions.threshold,
seriesDataMin,
seriesDataMax;
axis.hasVisibleSeries = true;
// Validate threshold in logarithmic axes
if (axis.isLog && threshold <= 0) {
threshold = null;
}
// Get dataMin and dataMax for X axes
if (axis.isXAxis) {
xData = series.xData;
if (xData.length) {
axis.dataMin = mathMin(pick(axis.dataMin, xData[0]), arrayMin(xData));
axis.dataMax = mathMax(pick(axis.dataMax, xData[0]), arrayMax(xData));
}
// Get dataMin and dataMax for Y axes, as well as handle stacking and processed data
} else {
// Get this particular series extremes
series.getExtremes();
seriesDataMax = series.dataMax;
seriesDataMin = series.dataMin;
// Get the dataMin and dataMax so far. If percentage is used, the min and max are
// always 0 and 100. If seriesDataMin and seriesDataMax is null, then series
// doesn't have active y data, we continue with nulls
if (defined(seriesDataMin) && defined(seriesDataMax)) {
axis.dataMin = mathMin(pick(axis.dataMin, seriesDataMin), seriesDataMin);
axis.dataMax = mathMax(pick(axis.dataMax, seriesDataMax), seriesDataMax);
}
// Adjust to threshold
if (defined(threshold)) {
if (axis.dataMin >= threshold) {
axis.dataMin = threshold;
axis.ignoreMinPadding = true;
} else if (axis.dataMax < threshold) {
axis.dataMax = threshold;
axis.ignoreMaxPadding = true;
}
}
}
}
});
},
/**
* Translate from axis value to pixel position on the chart, or back
*
*/
translate: function (val, backwards, cvsCoord, old, handleLog, pointPlacement) {
var axis = this,
axisLength = axis.len,
sign = 1,
cvsOffset = 0,
localA = old ? axis.oldTransA : axis.transA,
localMin = old ? axis.oldMin : axis.min,
returnValue,
minPixelPadding = axis.minPixelPadding,
postTranslate = (axis.options.ordinal || (axis.isLog && handleLog)) && axis.lin2val;
if (!localA) {
localA = axis.transA;
}
// In vertical axes, the canvas coordinates start from 0 at the top like in
// SVG.
if (cvsCoord) {
sign *= -1; // canvas coordinates inverts the value
cvsOffset = axisLength;
}
// Handle reversed axis
if (axis.reversed) {
sign *= -1;
cvsOffset -= sign * axisLength;
}
// From pixels to value
if (backwards) { // reverse translation
val = val * sign + cvsOffset;
val -= minPixelPadding;
returnValue = val / localA + localMin; // from chart pixel to value
if (postTranslate) { // log and ordinal axes
returnValue = axis.lin2val(returnValue);
}
// From value to pixels
} else {
if (postTranslate) { // log and ordinal axes
val = axis.val2lin(val);
}
if (pointPlacement === 'between') {
pointPlacement = 0.5;
}
returnValue = sign * (val - localMin) * localA + cvsOffset + (sign * minPixelPadding) +
(isNumber(pointPlacement) ? localA * pointPlacement * axis.pointRange : 0);
}
return returnValue;
},
/**
* Utility method to translate an axis value to pixel position.
* @param {Number} value A value in terms of axis units
* @param {Boolean} paneCoordinates Whether to return the pixel coordinate relative to the chart
* or just the axis/pane itself.
*/
toPixels: function (value, paneCoordinates) {
return this.translate(value, false, !this.horiz, null, true) + (paneCoordinates ? 0 : this.pos);
},
/*
* Utility method to translate a pixel position in to an axis value
* @param {Number} pixel The pixel value coordinate
* @param {Boolean} paneCoordiantes Whether the input pixel is relative to the chart or just the
* axis/pane itself.
*/
toValue: function (pixel, paneCoordinates) {
return this.translate(pixel - (paneCoordinates ? 0 : this.pos), true, !this.horiz, null, true);
},
/**
* Create the path for a plot line that goes from the given value on
* this axis, across the plot to the opposite side
* @param {Number} value
* @param {Number} lineWidth Used for calculation crisp line
* @param {Number] old Use old coordinates (for resizing and rescaling)
*/
getPlotLinePath: function (value, lineWidth, old, force) {
var axis = this,
chart = axis.chart,
axisLeft = axis.left,
axisTop = axis.top,
x1,
y1,
x2,
y2,
translatedValue = axis.translate(value, null, null, old),
cHeight = (old && chart.oldChartHeight) || chart.chartHeight,
cWidth = (old && chart.oldChartWidth) || chart.chartWidth,
skip,
transB = axis.transB;
x1 = x2 = mathRound(translatedValue + transB);
y1 = y2 = mathRound(cHeight - translatedValue - transB);
if (isNaN(translatedValue)) { // no min or max
skip = true;
} else if (axis.horiz) {
y1 = axisTop;
y2 = cHeight - axis.bottom;
if (x1 < axisLeft || x1 > axisLeft + axis.width) {
skip = true;
}
} else {
x1 = axisLeft;
x2 = cWidth - axis.right;
if (y1 < axisTop || y1 > axisTop + axis.height) {
skip = true;
}
}
return skip && !force ?
null :
chart.renderer.crispLine([M, x1, y1, L, x2, y2], lineWidth || 0);
},
/**
* Create the path for a plot band
*/
getPlotBandPath: function (from, to) {
var toPath = this.getPlotLinePath(to),
path = this.getPlotLinePath(from);
if (path && toPath) {
path.push(
toPath[4],
toPath[5],
toPath[1],
toPath[2]
);
} else { // outside the axis area
path = null;
}
return path;
},
/**
* Set the tick positions of a linear axis to round values like whole tens or every five.
*/
getLinearTickPositions: function (tickInterval, min, max) {
var pos,
lastPos,
roundedMin = correctFloat(mathFloor(min / tickInterval) * tickInterval),
roundedMax = correctFloat(mathCeil(max / tickInterval) * tickInterval),
tickPositions = [];
// Populate the intermediate values
pos = roundedMin;
while (pos <= roundedMax) {
// Place the tick on the rounded value
tickPositions.push(pos);
// Always add the raw tickInterval, not the corrected one.
pos = correctFloat(pos + tickInterval);
// If the interval is not big enough in the current min - max range to actually increase
// the loop variable, we need to break out to prevent endless loop. Issue #619
if (pos === lastPos) {
break;
}
// Record the last value
lastPos = pos;
}
return tickPositions;
},
/**
* Set the tick positions of a logarithmic axis
*/
getLogTickPositions: function (interval, min, max, minor) {
var axis = this,
options = axis.options,
axisLength = axis.len,
// Since we use this method for both major and minor ticks,
// use a local variable and return the result
positions = [];
// Reset
if (!minor) {
axis._minorAutoInterval = null;
}
// First case: All ticks fall on whole logarithms: 1, 10, 100 etc.
if (interval >= 0.5) {
interval = mathRound(interval);
positions = axis.getLinearTickPositions(interval, min, max);
// Second case: We need intermediary ticks. For example
// 1, 2, 4, 6, 8, 10, 20, 40 etc.
} else if (interval >= 0.08) {
var roundedMin = mathFloor(min),
intermediate,
i,
j,
len,
pos,
lastPos,
break2;
if (interval > 0.3) {
intermediate = [1, 2, 4];
} else if (interval > 0.15) { // 0.2 equals five minor ticks per 1, 10, 100 etc
intermediate = [1, 2, 4, 6, 8];
} else { // 0.1 equals ten minor ticks per 1, 10, 100 etc
intermediate = [1, 2, 3, 4, 5, 6, 7, 8, 9];
}
for (i = roundedMin; i < max + 1 && !break2; i++) {
len = intermediate.length;
for (j = 0; j < len && !break2; j++) {
pos = log2lin(lin2log(i) * intermediate[j]);
if (pos > min && (!minor || lastPos <= max)) { // #1670
positions.push(lastPos);
}
if (lastPos > max) {
break2 = true;
}
lastPos = pos;
}
}
// Third case: We are so deep in between whole logarithmic values that
// we might as well handle the tick positions like a linear axis. For
// example 1.01, 1.02, 1.03, 1.04.
} else {
var realMin = lin2log(min),
realMax = lin2log(max),
tickIntervalOption = options[minor ? 'minorTickInterval' : 'tickInterval'],
filteredTickIntervalOption = tickIntervalOption === 'auto' ? null : tickIntervalOption,
tickPixelIntervalOption = options.tickPixelInterval / (minor ? 5 : 1),
totalPixelLength = minor ? axisLength / axis.tickPositions.length : axisLength;
interval = pick(
filteredTickIntervalOption,
axis._minorAutoInterval,
(realMax - realMin) * tickPixelIntervalOption / (totalPixelLength || 1)
);
interval = normalizeTickInterval(
interval,
null,
getMagnitude(interval)
);
positions = map(axis.getLinearTickPositions(
interval,
realMin,
realMax
), log2lin);
if (!minor) {
axis._minorAutoInterval = interval / 5;
}
}
// Set the axis-level tickInterval variable
if (!minor) {
axis.tickInterval = interval;
}
return positions;
},
/**
* Return the minor tick positions. For logarithmic axes, reuse the same logic
* as for major ticks.
*/
getMinorTickPositions: function () {
var axis = this,
options = axis.options,
tickPositions = axis.tickPositions,
minorTickInterval = axis.minorTickInterval,
minorTickPositions = [],
pos,
i,
len;
if (axis.isLog) {
len = tickPositions.length;
for (i = 1; i < len; i++) {
minorTickPositions = minorTickPositions.concat(
axis.getLogTickPositions(minorTickInterval, tickPositions[i - 1], tickPositions[i], true)
);
}
} else if (axis.isDatetimeAxis && options.minorTickInterval === 'auto') { // #1314
minorTickPositions = minorTickPositions.concat(
getTimeTicks(
normalizeTimeTickInterval(minorTickInterval),
axis.min,
axis.max,
options.startOfWeek
)
);
if (minorTickPositions[0] < axis.min) {
minorTickPositions.shift();
}
} else {
for (pos = axis.min + (tickPositions[0] - axis.min) % minorTickInterval; pos <= axis.max; pos += minorTickInterval) {
minorTickPositions.push(pos);
}
}
return minorTickPositions;
},
/**
* Adjust the min and max for the minimum range. Keep in mind that the series data is
* not yet processed, so we don't have information on data cropping and grouping, or
* updated axis.pointRange or series.pointRange. The data can't be processed until
* we have finally established min and max.
*/
adjustForMinRange: function () {
var axis = this,
options = axis.options,
min = axis.min,
max = axis.max,
zoomOffset,
spaceAvailable = axis.dataMax - axis.dataMin >= axis.minRange,
closestDataRange,
i,
distance,
xData,
loopLength,
minArgs,
maxArgs;
// Set the automatic minimum range based on the closest point distance
if (axis.isXAxis && axis.minRange === UNDEFINED && !axis.isLog) {
if (defined(options.min) || defined(options.max)) {
axis.minRange = null; // don't do this again
} else {
// Find the closest distance between raw data points, as opposed to
// closestPointRange that applies to processed points (cropped and grouped)
each(axis.series, function (series) {
xData = series.xData;
loopLength = series.xIncrement ? 1 : xData.length - 1;
for (i = loopLength; i > 0; i--) {
distance = xData[i] - xData[i - 1];
if (closestDataRange === UNDEFINED || distance < closestDataRange) {
closestDataRange = distance;
}
}
});
axis.minRange = mathMin(closestDataRange * 5, axis.dataMax - axis.dataMin);
}
}
// if minRange is exceeded, adjust
if (max - min < axis.minRange) {
var minRange = axis.minRange;
zoomOffset = (minRange - max + min) / 2;
// if min and max options have been set, don't go beyond it
minArgs = [min - zoomOffset, pick(options.min, min - zoomOffset)];
if (spaceAvailable) { // if space is available, stay within the data range
minArgs[2] = axis.dataMin;
}
min = arrayMax(minArgs);
maxArgs = [min + minRange, pick(options.max, min + minRange)];
if (spaceAvailable) { // if space is availabe, stay within the data range
maxArgs[2] = axis.dataMax;
}
max = arrayMin(maxArgs);
// now if the max is adjusted, adjust the min back
if (max - min < minRange) {
minArgs[0] = max - minRange;
minArgs[1] = pick(options.min, max - minRange);
min = arrayMax(minArgs);
}
}
// Record modified extremes
axis.min = min;
axis.max = max;
},
/**
* Update translation information
*/
setAxisTranslation: function (saveOld) {
var axis = this,
range = axis.max - axis.min,
pointRange = 0,
closestPointRange,
minPointOffset = 0,
pointRangePadding = 0,
linkedParent = axis.linkedParent,
ordinalCorrection,
transA = axis.transA;
// adjust translation for padding
if (axis.isXAxis) {
if (linkedParent) {
minPointOffset = linkedParent.minPointOffset;
pointRangePadding = linkedParent.pointRangePadding;
} else {
each(axis.series, function (series) {
var seriesPointRange = series.pointRange,
pointPlacement = series.options.pointPlacement,
seriesClosestPointRange = series.closestPointRange;
if (seriesPointRange > range) { // #1446
seriesPointRange = 0;
}
pointRange = mathMax(pointRange, seriesPointRange);
// minPointOffset is the value padding to the left of the axis in order to make
// room for points with a pointRange, typically columns. When the pointPlacement option
// is 'between' or 'on', this padding does not apply.
minPointOffset = mathMax(
minPointOffset,
isString(pointPlacement) ? 0 : seriesPointRange / 2
);
// Determine the total padding needed to the length of the axis to make room for the
// pointRange. If the series' pointPlacement is 'on', no padding is added.
pointRangePadding = mathMax(
pointRangePadding,
pointPlacement === 'on' ? 0 : seriesPointRange
);
// Set the closestPointRange
if (!series.noSharedTooltip && defined(seriesClosestPointRange)) {
closestPointRange = defined(closestPointRange) ?
mathMin(closestPointRange, seriesClosestPointRange) :
seriesClosestPointRange;
}
});
}
// Record minPointOffset and pointRangePadding
ordinalCorrection = axis.ordinalSlope && closestPointRange ? axis.ordinalSlope / closestPointRange : 1; // #988, #1853
axis.minPointOffset = minPointOffset = minPointOffset * ordinalCorrection;
axis.pointRangePadding = pointRangePadding = pointRangePadding * ordinalCorrection;
// pointRange means the width reserved for each point, like in a column chart
axis.pointRange = mathMin(pointRange, range);
// closestPointRange means the closest distance between points. In columns
// it is mostly equal to pointRange, but in lines pointRange is 0 while closestPointRange
// is some other value
axis.closestPointRange = closestPointRange;
}
// Secondary values
if (saveOld) {
axis.oldTransA = transA;
}
axis.translationSlope = axis.transA = transA = axis.len / ((range + pointRangePadding) || 1);
axis.transB = axis.horiz ? axis.left : axis.bottom; // translation addend
axis.minPixelPadding = transA * minPointOffset;
},
/**
* Set the tick positions to round values and optionally extend the extremes
* to the nearest tick
*/
setTickPositions: function (secondPass) {
var axis = this,
chart = axis.chart,
options = axis.options,
isLog = axis.isLog,
isDatetimeAxis = axis.isDatetimeAxis,
isXAxis = axis.isXAxis,
isLinked = axis.isLinked,
tickPositioner = axis.options.tickPositioner,
maxPadding = options.maxPadding,
minPadding = options.minPadding,
length,
linkedParentExtremes,
tickIntervalOption = options.tickInterval,
minTickIntervalOption = options.minTickInterval,
tickPixelIntervalOption = options.tickPixelInterval,
tickPositions,
keepTwoTicksOnly,
categories = axis.categories;
// linked axis gets the extremes from the parent axis
if (isLinked) {
axis.linkedParent = chart[isXAxis ? 'xAxis' : 'yAxis'][options.linkedTo];
linkedParentExtremes = axis.linkedParent.getExtremes();
axis.min = pick(linkedParentExtremes.min, linkedParentExtremes.dataMin);
axis.max = pick(linkedParentExtremes.max, linkedParentExtremes.dataMax);
if (options.type !== axis.linkedParent.options.type) {
error(11, 1); // Can't link axes of different type
}
} else { // initial min and max from the extreme data values
axis.min = pick(axis.userMin, options.min, axis.dataMin);
axis.max = pick(axis.userMax, options.max, axis.dataMax);
}
if (isLog) {
if (!secondPass && mathMin(axis.min, pick(axis.dataMin, axis.min)) <= 0) { // #978
error(10, 1); // Can't plot negative values on log axis
}
axis.min = correctFloat(log2lin(axis.min)); // correctFloat cures #934
axis.max = correctFloat(log2lin(axis.max));
}
// handle zoomed range
if (axis.range) {
axis.userMin = axis.min = mathMax(axis.min, axis.max - axis.range); // #618
axis.userMax = axis.max;
if (secondPass) {
axis.range = null; // don't use it when running setExtremes
}
}
// Hook for adjusting this.min and this.max. Used by bubble series.
if (axis.beforePadding) {
axis.beforePadding();
}
// adjust min and max for the minimum range
axis.adjustForMinRange();
// Pad the values to get clear of the chart's edges. To avoid tickInterval taking the padding
// into account, we do this after computing tick interval (#1337).
if (!categories && !axis.usePercentage && !isLinked && defined(axis.min) && defined(axis.max)) {
length = axis.max - axis.min;
if (length) {
if (!defined(options.min) && !defined(axis.userMin) && minPadding && (axis.dataMin < 0 || !axis.ignoreMinPadding)) {
axis.min -= length * minPadding;
}
if (!defined(options.max) && !defined(axis.userMax) && maxPadding && (axis.dataMax > 0 || !axis.ignoreMaxPadding)) {
axis.max += length * maxPadding;
}
}
}
// get tickInterval
if (axis.min === axis.max || axis.min === undefined || axis.max === undefined) {
axis.tickInterval = 1;
} else if (isLinked && !tickIntervalOption &&
tickPixelIntervalOption === axis.linkedParent.options.tickPixelInterval) {
axis.tickInterval = axis.linkedParent.tickInterval;
} else {
axis.tickInterval = pick(
tickIntervalOption,
categories ? // for categoried axis, 1 is default, for linear axis use tickPix
1 :
// don't let it be more than the data range
(axis.max - axis.min) * tickPixelIntervalOption / mathMax(axis.len, tickPixelIntervalOption)
);
// For squished axes, set only two ticks
if (!defined(tickIntervalOption) && axis.len < tickPixelIntervalOption && !this.isRadial) {
keepTwoTicksOnly = true;
axis.tickInterval /= 4; // tick extremes closer to the real values
}
}
// Now we're finished detecting min and max, crop and group series data. This
// is in turn needed in order to find tick positions in ordinal axes.
if (isXAxis && !secondPass) {
each(axis.series, function (series) {
series.processData(axis.min !== axis.oldMin || axis.max !== axis.oldMax);
});
}
// set the translation factor used in translate function
axis.setAxisTranslation(true);
// hook for ordinal axes and radial axes
if (axis.beforeSetTickPositions) {
axis.beforeSetTickPositions();
}
// hook for extensions, used in Highstock ordinal axes
if (axis.postProcessTickInterval) {
axis.tickInterval = axis.postProcessTickInterval(axis.tickInterval);
}
// In column-like charts, don't cramp in more ticks than there are points (#1943)
if (axis.pointRange) {
axis.tickInterval = mathMax(axis.pointRange, axis.tickInterval);
}
// Before normalizing the tick interval, handle minimum tick interval. This applies only if tickInterval is not defined.
if (!tickIntervalOption && axis.tickInterval < minTickIntervalOption) {
axis.tickInterval = minTickIntervalOption;
}
// for linear axes, get magnitude and normalize the interval
if (!isDatetimeAxis && !isLog) { // linear
if (!tickIntervalOption) {
axis.tickInterval = normalizeTickInterval(axis.tickInterval, null, getMagnitude(axis.tickInterval), options);
}
}
// get minorTickInterval
axis.minorTickInterval = options.minorTickInterval === 'auto' && axis.tickInterval ?
axis.tickInterval / 5 : options.minorTickInterval;
// find the tick positions
axis.tickPositions = tickPositions = options.tickPositions ?
[].concat(options.tickPositions) : // Work on a copy (#1565)
(tickPositioner && tickPositioner.apply(axis, [axis.min, axis.max]));
if (!tickPositions) {
// Too many ticks
if (!axis.ordinalPositions && (axis.max - axis.min) / axis.tickInterval > mathMax(2 * axis.len, 200)) {
error(19, true);
}
if (isDatetimeAxis) {
tickPositions = (axis.getNonLinearTimeTicks || getTimeTicks)(
normalizeTimeTickInterval(axis.tickInterval, options.units),
axis.min,
axis.max,
options.startOfWeek,
axis.ordinalPositions,
axis.closestPointRange,
true
);
} else if (isLog) {
tickPositions = axis.getLogTickPositions(axis.tickInterval, axis.min, axis.max);
} else {
tickPositions = axis.getLinearTickPositions(axis.tickInterval, axis.min, axis.max);
}
if (keepTwoTicksOnly) {
tickPositions.splice(1, tickPositions.length - 2);
}
axis.tickPositions = tickPositions;
}
if (!isLinked) {
// reset min/max or remove extremes based on start/end on tick
var roundedMin = tickPositions[0],
roundedMax = tickPositions[tickPositions.length - 1],
minPointOffset = axis.minPointOffset || 0,
singlePad;
if (options.startOnTick) {
axis.min = roundedMin;
} else if (axis.min - minPointOffset > roundedMin) {
tickPositions.shift();
}
if (options.endOnTick) {
axis.max = roundedMax;
} else if (axis.max + minPointOffset < roundedMax) {
tickPositions.pop();
}
// When there is only one point, or all points have the same value on this axis, then min
// and max are equal and tickPositions.length is 1. In this case, add some padding
// in order to center the point, but leave it with one tick. #1337.
if (tickPositions.length === 1) {
singlePad = 0.001; // The lowest possible number to avoid extra padding on columns
axis.min -= singlePad;
axis.max += singlePad;
}
}
},
/**
* Set the max ticks of either the x and y axis collection
*/
setMaxTicks: function () {
var chart = this.chart,
maxTicks = chart.maxTicks || {},
tickPositions = this.tickPositions,
key = this._maxTicksKey = [this.xOrY, this.pos, this.len].join('-');
if (!this.isLinked && !this.isDatetimeAxis && tickPositions && tickPositions.length > (maxTicks[key] || 0) && this.options.alignTicks !== false) {
maxTicks[key] = tickPositions.length;
}
chart.maxTicks = maxTicks;
},
/**
* When using multiple axes, adjust the number of ticks to match the highest
* number of ticks in that group
*/
adjustTickAmount: function () {
var axis = this,
chart = axis.chart,
key = axis._maxTicksKey,
tickPositions = axis.tickPositions,
maxTicks = chart.maxTicks;
if (maxTicks && maxTicks[key] && !axis.isDatetimeAxis && !axis.categories && !axis.isLinked && axis.options.alignTicks !== false) { // only apply to linear scale
var oldTickAmount = axis.tickAmount,
calculatedTickAmount = tickPositions.length,
tickAmount;
// set the axis-level tickAmount to use below
axis.tickAmount = tickAmount = maxTicks[key];
if (calculatedTickAmount < tickAmount) {
while (tickPositions.length < tickAmount) {
tickPositions.push(correctFloat(
tickPositions[tickPositions.length - 1] + axis.tickInterval
));
}
axis.transA *= (calculatedTickAmount - 1) / (tickAmount - 1);
axis.max = tickPositions[tickPositions.length - 1];
}
if (defined(oldTickAmount) && tickAmount !== oldTickAmount) {
axis.isDirty = true;
}
}
},
/**
* Set the scale based on data min and max, user set min and max or options
*
*/
setScale: function () {
var axis = this,
stacks = axis.stacks,
type,
i,
isDirtyData,
isDirtyAxisLength;
axis.oldMin = axis.min;
axis.oldMax = axis.max;
axis.oldAxisLength = axis.len;
// set the new axisLength
axis.setAxisSize();
//axisLength = horiz ? axisWidth : axisHeight;
isDirtyAxisLength = axis.len !== axis.oldAxisLength;
// is there new data?
each(axis.series, function (series) {
if (series.isDirtyData || series.isDirty ||
series.xAxis.isDirty) { // when x axis is dirty, we need new data extremes for y as well
isDirtyData = true;
}
});
// do we really need to go through all this?
if (isDirtyAxisLength || isDirtyData || axis.isLinked || axis.forceRedraw ||
axis.userMin !== axis.oldUserMin || axis.userMax !== axis.oldUserMax) {
// reset stacks
if (!axis.isXAxis) {
for (type in stacks) {
delete stacks[type];
}
}
axis.forceRedraw = false;
// get data extremes if needed
axis.getSeriesExtremes();
// get fixed positions based on tickInterval
axis.setTickPositions();
// record old values to decide whether a rescale is necessary later on (#540)
axis.oldUserMin = axis.userMin;
axis.oldUserMax = axis.userMax;
// Mark as dirty if it is not already set to dirty and extremes have changed. #595.
if (!axis.isDirty) {
axis.isDirty = isDirtyAxisLength || axis.min !== axis.oldMin || axis.max !== axis.oldMax;
}
} else if (!axis.isXAxis) {
if (axis.oldStacks) {
stacks = axis.stacks = axis.oldStacks;
}
// reset stacks
for (type in stacks) {
for (i in stacks[type]) {
stacks[type][i].cum = stacks[type][i].total;
}
}
}
// Set the maximum tick amount
axis.setMaxTicks();
},
/**
* Set the extremes and optionally redraw
* @param {Number} newMin
* @param {Number} newMax
* @param {Boolean} redraw
* @param {Boolean|Object} animation Whether to apply animation, and optionally animation
* configuration
* @param {Object} eventArguments
*
*/
setExtremes: function (newMin, newMax, redraw, animation, eventArguments) {
var axis = this,
chart = axis.chart;
redraw = pick(redraw, true); // defaults to true
// Extend the arguments with min and max
eventArguments = extend(eventArguments, {
min: newMin,
max: newMax
});
// Fire the event
fireEvent(axis, 'setExtremes', eventArguments, function () { // the default event handler
axis.userMin = newMin;
axis.userMax = newMax;
axis.eventArgs = eventArguments;
// Mark for running afterSetExtremes
axis.isDirtyExtremes = true;
// redraw
if (redraw) {
chart.redraw(animation);
}
});
},
/**
* Overridable method for zooming chart. Pulled out in a separate method to allow overriding
* in stock charts.
*/
zoom: function (newMin, newMax) {
// Prevent pinch zooming out of range. Check for defined is for #1946.
if (!this.allowZoomOutside) {
if (defined(this.dataMin) && newMin <= this.dataMin) {
newMin = UNDEFINED;
}
if (defined(this.dataMax) && newMax >= this.dataMax) {
newMax = UNDEFINED;
}
}
// In full view, displaying the reset zoom button is not required
this.displayBtn = newMin !== UNDEFINED || newMax !== UNDEFINED;
// Do it
this.setExtremes(
newMin,
newMax,
false,
UNDEFINED,
{ trigger: 'zoom' }
);
return true;
},
/**
* Update the axis metrics
*/
setAxisSize: function () {
var chart = this.chart,
options = this.options,
offsetLeft = options.offsetLeft || 0,
offsetRight = options.offsetRight || 0,
horiz = this.horiz,
width,
height,
top,
left;
// Expose default values to use in Series object and navigator
this.left = left = pick(options.left, chart.plotLeft + offsetLeft);
this.top = top = pick(options.top, chart.plotTop);
this.width = width = pick(options.width, chart.plotWidth - offsetLeft + offsetRight);
this.height = height = pick(options.height, chart.plotHeight);
this.bottom = chart.chartHeight - height - top;
this.right = chart.chartWidth - width - left;
// Direction agnostic properties
this.len = mathMax(horiz ? width : height, 0); // mathMax fixes #905
this.pos = horiz ? left : top; // distance from SVG origin
},
/**
* Get the actual axis extremes
*/
getExtremes: function () {
var axis = this,
isLog = axis.isLog;
return {
min: isLog ? correctFloat(lin2log(axis.min)) : axis.min,
max: isLog ? correctFloat(lin2log(axis.max)) : axis.max,
dataMin: axis.dataMin,
dataMax: axis.dataMax,
userMin: axis.userMin,
userMax: axis.userMax
};
},
/**
* Get the zero plane either based on zero or on the min or max value.
* Used in bar and area plots
*/
getThreshold: function (threshold) {
var axis = this,
isLog = axis.isLog;
var realMin = isLog ? lin2log(axis.min) : axis.min,
realMax = isLog ? lin2log(axis.max) : axis.max;
if (realMin > threshold || threshold === null) {
threshold = realMin;
} else if (realMax < threshold) {
threshold = realMax;
}
return axis.translate(threshold, 0, 1, 0, 1);
},
addPlotBand: function (options) {
this.addPlotBandOrLine(options, 'plotBands');
},
addPlotLine: function (options) {
this.addPlotBandOrLine(options, 'plotLines');
},
/**
* Add a plot band or plot line after render time
*
* @param options {Object} The plotBand or plotLine configuration object
*/
addPlotBandOrLine: function (options, coll) {
var obj = new PlotLineOrBand(this, options).render(),
userOptions = this.userOptions;
if (obj) { // #2189
// Add it to the user options for exporting and Axis.update
if (coll) {
userOptions[coll] = userOptions[coll] || [];
userOptions[coll].push(options);
}
this.plotLinesAndBands.push(obj);
}
return obj;
},
/**
* Compute auto alignment for the axis label based on which side the axis is on
* and the given rotation for the label
*/
autoLabelAlign: function (rotation) {
var ret,
angle = (pick(rotation, 0) - (this.side * 90) + 720) % 360;
if (angle > 15 && angle < 165) {
ret = 'right';
} else if (angle > 195 && angle < 345) {
ret = 'left';
} else {
ret = 'center';
}
return ret;
},
/**
* Render the tick labels to a preliminary position to get their sizes
*/
getOffset: function () {
var axis = this,
chart = axis.chart,
renderer = chart.renderer,
options = axis.options,
tickPositions = axis.tickPositions,
ticks = axis.ticks,
horiz = axis.horiz,
side = axis.side,
invertedSide = chart.inverted ? [1, 0, 3, 2][side] : side,
hasData,
showAxis,
titleOffset = 0,
titleOffsetOption,
titleMargin = 0,
axisTitleOptions = options.title,
labelOptions = options.labels,
labelOffset = 0, // reset
axisOffset = chart.axisOffset,
clipOffset = chart.clipOffset,
directionFactor = [-1, 1, 1, -1][side],
n,
i,
autoStaggerLines = 1,
maxStaggerLines = pick(labelOptions.maxStaggerLines, 5),
sortedPositions,
lastRight,
overlap,
pos,
bBox,
x,
w,
lineNo;
// For reuse in Axis.render
axis.hasData = hasData = (axis.hasVisibleSeries || (defined(axis.min) && defined(axis.max) && !!tickPositions));
axis.showAxis = showAxis = hasData || pick(options.showEmpty, true);
// Set/reset staggerLines
axis.staggerLines = axis.horiz && labelOptions.staggerLines;
// Create the axisGroup and gridGroup elements on first iteration
if (!axis.axisGroup) {
axis.gridGroup = renderer.g('grid')
.attr({ zIndex: options.gridZIndex || 1 })
.add();
axis.axisGroup = renderer.g('axis')
.attr({ zIndex: options.zIndex || 2 })
.add();
axis.labelGroup = renderer.g('axis-labels')
.attr({ zIndex: labelOptions.zIndex || 7 })
.add();
}
if (hasData || axis.isLinked) {
// Set the explicit or automatic label alignment
axis.labelAlign = pick(labelOptions.align || axis.autoLabelAlign(labelOptions.rotation));
each(tickPositions, function (pos) {
if (!ticks[pos]) {
ticks[pos] = new Tick(axis, pos);
} else {
ticks[pos].addLabel(); // update labels depending on tick interval
}
});
// Handle automatic stagger lines
if (axis.horiz && !axis.staggerLines && maxStaggerLines && !labelOptions.rotation) {
sortedPositions = axis.reversed ? [].concat(tickPositions).reverse() : tickPositions;
while (autoStaggerLines < maxStaggerLines) {
lastRight = [];
overlap = false;
for (i = 0; i < sortedPositions.length; i++) {
pos = sortedPositions[i];
bBox = ticks[pos].label && ticks[pos].label.getBBox();
w = bBox ? bBox.width : 0;
lineNo = i % autoStaggerLines;
if (w) {
x = axis.translate(pos); // don't handle log
if (lastRight[lineNo] !== UNDEFINED && x < lastRight[lineNo]) {
overlap = true;
}
lastRight[lineNo] = x + w;
}
}
if (overlap) {
autoStaggerLines++;
} else {
break;
}
}
if (autoStaggerLines > 1) {
axis.staggerLines = autoStaggerLines;
}
}
each(tickPositions, function (pos) {
// left side must be align: right and right side must have align: left for labels
if (side === 0 || side === 2 || { 1: 'left', 3: 'right' }[side] === axis.labelAlign) {
// get the highest offset
labelOffset = mathMax(
ticks[pos].getLabelSize(),
labelOffset
);
}
});
if (axis.staggerLines) {
labelOffset *= axis.staggerLines;
axis.labelOffset = labelOffset;
}
} else { // doesn't have data
for (n in ticks) {
ticks[n].destroy();
delete ticks[n];
}
}
if (axisTitleOptions && axisTitleOptions.text && axisTitleOptions.enabled !== false) {
if (!axis.axisTitle) {
axis.axisTitle = renderer.text(
axisTitleOptions.text,
0,
0,
axisTitleOptions.useHTML
)
.attr({
zIndex: 7,
rotation: axisTitleOptions.rotation || 0,
align:
axisTitleOptions.textAlign ||
{ low: 'left', middle: 'center', high: 'right' }[axisTitleOptions.align]
})
.css(axisTitleOptions.style)
.add(axis.axisGroup);
axis.axisTitle.isNew = true;
}
if (showAxis) {
titleOffset = axis.axisTitle.getBBox()[horiz ? 'height' : 'width'];
titleMargin = pick(axisTitleOptions.margin, horiz ? 5 : 10);
titleOffsetOption = axisTitleOptions.offset;
}
// hide or show the title depending on whether showEmpty is set
axis.axisTitle[showAxis ? 'show' : 'hide']();
}
// handle automatic or user set offset
axis.offset = directionFactor * pick(options.offset, axisOffset[side]);
axis.axisTitleMargin =
pick(titleOffsetOption,
labelOffset + titleMargin +
(side !== 2 && labelOffset && directionFactor * options.labels[horiz ? 'y' : 'x'])
);
axisOffset[side] = mathMax(
axisOffset[side],
axis.axisTitleMargin + titleOffset + directionFactor * axis.offset
);
clipOffset[invertedSide] = mathMax(clipOffset[invertedSide], mathFloor(options.lineWidth / 2) * 2);
},
/**
* Get the path for the axis line
*/
getLinePath: function (lineWidth) {
var chart = this.chart,
opposite = this.opposite,
offset = this.offset,
horiz = this.horiz,
lineLeft = this.left + (opposite ? this.width : 0) + offset,
lineTop = chart.chartHeight - this.bottom - (opposite ? this.height : 0) + offset;
if (opposite) {
lineWidth *= -1; // crispify the other way - #1480, #1687
}
return chart.renderer.crispLine([
M,
horiz ?
this.left :
lineLeft,
horiz ?
lineTop :
this.top,
L,
horiz ?
chart.chartWidth - this.right :
lineLeft,
horiz ?
lineTop :
chart.chartHeight - this.bottom
], lineWidth);
},
/**
* Position the title
*/
getTitlePosition: function () {
// compute anchor points for each of the title align options
var horiz = this.horiz,
axisLeft = this.left,
axisTop = this.top,
axisLength = this.len,
axisTitleOptions = this.options.title,
margin = horiz ? axisLeft : axisTop,
opposite = this.opposite,
offset = this.offset,
fontSize = pInt(axisTitleOptions.style.fontSize || 12),
// the position in the length direction of the axis
alongAxis = {
low: margin + (horiz ? 0 : axisLength),
middle: margin + axisLength / 2,
high: margin + (horiz ? axisLength : 0)
}[axisTitleOptions.align],
// the position in the perpendicular direction of the axis
offAxis = (horiz ? axisTop + this.height : axisLeft) +
(horiz ? 1 : -1) * // horizontal axis reverses the margin
(opposite ? -1 : 1) * // so does opposite axes
this.axisTitleMargin +
(this.side === 2 ? fontSize : 0);
return {
x: horiz ?
alongAxis :
offAxis + (opposite ? this.width : 0) + offset +
(axisTitleOptions.x || 0), // x
y: horiz ?
offAxis - (opposite ? this.height : 0) + offset :
alongAxis + (axisTitleOptions.y || 0) // y
};
},
/**
* Render the axis
*/
render: function () {
var axis = this,
chart = axis.chart,
renderer = chart.renderer,
options = axis.options,
isLog = axis.isLog,
isLinked = axis.isLinked,
tickPositions = axis.tickPositions,
axisTitle = axis.axisTitle,
stacks = axis.stacks,
ticks = axis.ticks,
minorTicks = axis.minorTicks,
alternateBands = axis.alternateBands,
stackLabelOptions = options.stackLabels,
alternateGridColor = options.alternateGridColor,
tickmarkOffset = axis.tickmarkOffset,
lineWidth = options.lineWidth,
linePath,
hasRendered = chart.hasRendered,
slideInTicks = hasRendered && defined(axis.oldMin) && !isNaN(axis.oldMin),
hasData = axis.hasData,
showAxis = axis.showAxis,
from,
to;
// Mark all elements inActive before we go over and mark the active ones
each([ticks, minorTicks, alternateBands], function (coll) {
var pos;
for (pos in coll) {
coll[pos].isActive = false;
}
});
// If the series has data draw the ticks. Else only the line and title
if (hasData || isLinked) {
// minor ticks
if (axis.minorTickInterval && !axis.categories) {
each(axis.getMinorTickPositions(), function (pos) {
if (!minorTicks[pos]) {
minorTicks[pos] = new Tick(axis, pos, 'minor');
}
// render new ticks in old position
if (slideInTicks && minorTicks[pos].isNew) {
minorTicks[pos].render(null, true);
}
minorTicks[pos].render(null, false, 1);
});
}
// Major ticks. Pull out the first item and render it last so that
// we can get the position of the neighbour label. #808.
if (tickPositions.length) { // #1300
each(tickPositions.slice(1).concat([tickPositions[0]]), function (pos, i) {
// Reorganize the indices
i = (i === tickPositions.length - 1) ? 0 : i + 1;
// linked axes need an extra check to find out if
if (!isLinked || (pos >= axis.min && pos <= axis.max)) {
if (!ticks[pos]) {
ticks[pos] = new Tick(axis, pos);
}
// render new ticks in old position
if (slideInTicks && ticks[pos].isNew) {
ticks[pos].render(i, true);
}
ticks[pos].render(i, false, 1);
}
});
// In a categorized axis, the tick marks are displayed between labels. So
// we need to add a tick mark and grid line at the left edge of the X axis.
if (tickmarkOffset && axis.min === 0) {
if (!ticks[-1]) {
ticks[-1] = new Tick(axis, -1, null, true);
}
ticks[-1].render(-1);
}
}
// alternate grid color
if (alternateGridColor) {
each(tickPositions, function (pos, i) {
if (i % 2 === 0 && pos < axis.max) {
if (!alternateBands[pos]) {
alternateBands[pos] = new PlotLineOrBand(axis);
}
from = pos + tickmarkOffset; // #949
to = tickPositions[i + 1] !== UNDEFINED ? tickPositions[i + 1] + tickmarkOffset : axis.max;
alternateBands[pos].options = {
from: isLog ? lin2log(from) : from,
to: isLog ? lin2log(to) : to,
color: alternateGridColor
};
alternateBands[pos].render();
alternateBands[pos].isActive = true;
}
});
}
// custom plot lines and bands
if (!axis._addedPlotLB) { // only first time
each((options.plotLines || []).concat(options.plotBands || []), function (plotLineOptions) {
axis.addPlotBandOrLine(plotLineOptions);
});
axis._addedPlotLB = true;
}
} // end if hasData
// Remove inactive ticks
each([ticks, minorTicks, alternateBands], function (coll) {
var pos,
i,
forDestruction = [],
delay = globalAnimation ? globalAnimation.duration || 500 : 0,
destroyInactiveItems = function () {
i = forDestruction.length;
while (i--) {
// When resizing rapidly, the same items may be destroyed in different timeouts,
// or the may be reactivated
if (coll[forDestruction[i]] && !coll[forDestruction[i]].isActive) {
coll[forDestruction[i]].destroy();
delete coll[forDestruction[i]];
}
}
};
for (pos in coll) {
if (!coll[pos].isActive) {
// Render to zero opacity
coll[pos].render(pos, false, 0);
coll[pos].isActive = false;
forDestruction.push(pos);
}
}
// When the objects are finished fading out, destroy them
if (coll === alternateBands || !chart.hasRendered || !delay) {
destroyInactiveItems();
} else if (delay) {
setTimeout(destroyInactiveItems, delay);
}
});
// Static items. As the axis group is cleared on subsequent calls
// to render, these items are added outside the group.
// axis line
if (lineWidth) {
linePath = axis.getLinePath(lineWidth);
if (!axis.axisLine) {
axis.axisLine = renderer.path(linePath)
.attr({
stroke: options.lineColor,
'stroke-width': lineWidth,
zIndex: 7
})
.add(axis.axisGroup);
} else {
axis.axisLine.animate({ d: linePath });
}
// show or hide the line depending on options.showEmpty
axis.axisLine[showAxis ? 'show' : 'hide']();
}
if (axisTitle && showAxis) {
axisTitle[axisTitle.isNew ? 'attr' : 'animate'](
axis.getTitlePosition()
);
axisTitle.isNew = false;
}
// Stacked totals:
if (stackLabelOptions && stackLabelOptions.enabled) {
var stackKey, oneStack, stackCategory,
stackTotalGroup = axis.stackTotalGroup;
// Create a separate group for the stack total labels
if (!stackTotalGroup) {
axis.stackTotalGroup = stackTotalGroup =
renderer.g('stack-labels')
.attr({
visibility: VISIBLE,
zIndex: 6
})
.add();
}
// plotLeft/Top will change when y axis gets wider so we need to translate the
// stackTotalGroup at every render call. See bug #506 and #516
stackTotalGroup.translate(chart.plotLeft, chart.plotTop);
// Render each stack total
for (stackKey in stacks) {
oneStack = stacks[stackKey];
for (stackCategory in oneStack) {
oneStack[stackCategory].render(stackTotalGroup);
}
}
}
// End stacked totals
axis.isDirty = false;
},
/**
* Remove a plot band or plot line from the chart by id
* @param {Object} id
*/
removePlotBandOrLine: function (id) {
var plotLinesAndBands = this.plotLinesAndBands,
options = this.options,
userOptions = this.userOptions,
i = plotLinesAndBands.length;
while (i--) {
if (plotLinesAndBands[i].id === id) {
plotLinesAndBands[i].destroy();
}
}
each([options.plotLines || [], userOptions.plotLines || [], options.plotBands || [], userOptions.plotBands || []], function (arr) {
i = arr.length;
while (i--) {
if (arr[i].id === id) {
erase(arr, arr[i]);
}
}
});
},
/**
* Update the axis title by options
*/
setTitle: function (newTitleOptions, redraw) {
this.update({ title: newTitleOptions }, redraw);
},
/**
* Redraw the axis to reflect changes in the data or axis extremes
*/
redraw: function () {
var axis = this,
chart = axis.chart,
pointer = chart.pointer;
// hide tooltip and hover states
if (pointer.reset) {
pointer.reset(true);
}
// render the axis
axis.render();
// move plot lines and bands
each(axis.plotLinesAndBands, function (plotLine) {
plotLine.render();
});
// mark associated series as dirty and ready for redraw
each(axis.series, function (series) {
series.isDirty = true;
});
},
/**
* Build the stacks from top down
*/
buildStacks: function () {
var series = this.series,
i = series.length;
if (!this.isXAxis) {
while (i--) {
series[i].setStackedPoints();
}
// Loop up again to compute percent stack
if (this.usePercentage) {
for (i = 0; i < series.length; i++) {
series[i].setPercentStacks();
}
}
}
},
/**
* Set new axis categories and optionally redraw
* @param {Array} categories
* @param {Boolean} redraw
*/
setCategories: function (categories, redraw) {
this.update({ categories: categories }, redraw);
},
/**
* Destroys an Axis instance.
*/
destroy: function (keepEvents) {
var axis = this,
stacks = axis.stacks,
stackKey,
plotLinesAndBands = axis.plotLinesAndBands,
i;
// Remove the events
if (!keepEvents) {
removeEvent(axis);
}
// Destroy each stack total
for (stackKey in stacks) {
destroyObjectProperties(stacks[stackKey]);
stacks[stackKey] = null;
}
// Destroy collections
each([axis.ticks, axis.minorTicks, axis.alternateBands], function (coll) {
destroyObjectProperties(coll);
});
i = plotLinesAndBands.length;
while (i--) { // #1975
plotLinesAndBands[i].destroy();
}
// Destroy local variables
each(['stackTotalGroup', 'axisLine', 'axisGroup', 'gridGroup', 'labelGroup', 'axisTitle'], function (prop) {
if (axis[prop]) {
axis[prop] = axis[prop].destroy();
}
});
}
}; // end Axis
/**
* The tooltip object
* @param {Object} chart The chart instance
* @param {Object} options Tooltip options
*/
function Tooltip() {
this.init.apply(this, arguments);
}
Tooltip.prototype = {
init: function (chart, options) {
var borderWidth = options.borderWidth,
style = options.style,
padding = pInt(style.padding);
// Save the chart and options
this.chart = chart;
this.options = options;
// Keep track of the current series
//this.currentSeries = UNDEFINED;
// List of crosshairs
this.crosshairs = [];
// Current values of x and y when animating
this.now = { x: 0, y: 0 };
// The tooltip is initially hidden
this.isHidden = true;
// create the label
this.label = chart.renderer.label('', 0, 0, options.shape, null, null, options.useHTML, null, 'tooltip')
.attr({
padding: padding,
fill: options.backgroundColor,
'stroke-width': borderWidth,
r: options.borderRadius,
zIndex: 8
})
.css(style)
.css({ padding: 0 }) // Remove it from VML, the padding is applied as an attribute instead (#1117)
.add()
.attr({ y: -999 }); // #2301
// When using canVG the shadow shows up as a gray circle
// even if the tooltip is hidden.
if (!useCanVG) {
this.label.shadow(options.shadow);
}
// Public property for getting the shared state.
this.shared = options.shared;
},
/**
* Destroy the tooltip and its elements.
*/
destroy: function () {
each(this.crosshairs, function (crosshair) {
if (crosshair) {
crosshair.destroy();
}
});
// Destroy and clear local variables
if (this.label) {
this.label = this.label.destroy();
}
clearTimeout(this.hideTimer);
clearTimeout(this.tooltipTimeout);
},
/**
* Provide a soft movement for the tooltip
*
* @param {Number} x
* @param {Number} y
* @private
*/
move: function (x, y, anchorX, anchorY) {
var tooltip = this,
now = tooltip.now,
animate = tooltip.options.animation !== false && !tooltip.isHidden;
// get intermediate values for animation
extend(now, {
x: animate ? (2 * now.x + x) / 3 : x,
y: animate ? (now.y + y) / 2 : y,
anchorX: animate ? (2 * now.anchorX + anchorX) / 3 : anchorX,
anchorY: animate ? (now.anchorY + anchorY) / 2 : anchorY
});
// move to the intermediate value
tooltip.label.attr(now);
// run on next tick of the mouse tracker
if (animate && (mathAbs(x - now.x) > 1 || mathAbs(y - now.y) > 1)) {
// never allow two timeouts
clearTimeout(this.tooltipTimeout);
// set the fixed interval ticking for the smooth tooltip
this.tooltipTimeout = setTimeout(function () {
// The interval function may still be running during destroy, so check that the chart is really there before calling.
if (tooltip) {
tooltip.move(x, y, anchorX, anchorY);
}
}, 32);
}
},
/**
* Hide the tooltip
*/
hide: function () {
var tooltip = this,
hoverPoints;
clearTimeout(this.hideTimer); // disallow duplicate timers (#1728, #1766)
if (!this.isHidden) {
hoverPoints = this.chart.hoverPoints;
this.hideTimer = setTimeout(function () {
tooltip.label.fadeOut();
tooltip.isHidden = true;
}, pick(this.options.hideDelay, 500));
// hide previous hoverPoints and set new
if (hoverPoints) {
each(hoverPoints, function (point) {
point.setState();
});
}
this.chart.hoverPoints = null;
}
},
/**
* Hide the crosshairs
*/
hideCrosshairs: function () {
each(this.crosshairs, function (crosshair) {
if (crosshair) {
crosshair.hide();
}
});
},
/**
* Extendable method to get the anchor position of the tooltip
* from a point or set of points
*/
getAnchor: function (points, mouseEvent) {
var ret,
chart = this.chart,
inverted = chart.inverted,
plotTop = chart.plotTop,
plotX = 0,
plotY = 0,
yAxis;
points = splat(points);
// Pie uses a special tooltipPos
ret = points[0].tooltipPos;
// When tooltip follows mouse, relate the position to the mouse
if (this.followPointer && mouseEvent) {
if (mouseEvent.chartX === UNDEFINED) {
mouseEvent = chart.pointer.normalize(mouseEvent);
}
ret = [
mouseEvent.chartX - chart.plotLeft,
mouseEvent.chartY - plotTop
];
}
// When shared, use the average position
if (!ret) {
each(points, function (point) {
yAxis = point.series.yAxis;
plotX += point.plotX;
plotY += (point.plotLow ? (point.plotLow + point.plotHigh) / 2 : point.plotY) +
(!inverted && yAxis ? yAxis.top - plotTop : 0); // #1151
});
plotX /= points.length;
plotY /= points.length;
ret = [
inverted ? chart.plotWidth - plotY : plotX,
this.shared && !inverted && points.length > 1 && mouseEvent ?
mouseEvent.chartY - plotTop : // place shared tooltip next to the mouse (#424)
inverted ? chart.plotHeight - plotX : plotY
];
}
return map(ret, mathRound);
},
/**
* Place the tooltip in a chart without spilling over
* and not covering the point it self.
*/
getPosition: function (boxWidth, boxHeight, point) {
// Set up the variables
var chart = this.chart,
plotLeft = chart.plotLeft,
plotTop = chart.plotTop,
plotWidth = chart.plotWidth,
plotHeight = chart.plotHeight,
distance = pick(this.options.distance, 12),
pointX = point.plotX,
pointY = point.plotY,
x = pointX + plotLeft + (chart.inverted ? distance : -boxWidth - distance),
y = pointY - boxHeight + plotTop + 15, // 15 means the point is 15 pixels up from the bottom of the tooltip
alignedRight;
// It is too far to the left, adjust it
if (x < 7) {
x = plotLeft + mathMax(pointX, 0) + distance;
}
// Test to see if the tooltip is too far to the right,
// if it is, move it back to be inside and then up to not cover the point.
if ((x + boxWidth) > (plotLeft + plotWidth)) {
x -= (x + boxWidth) - (plotLeft + plotWidth);
y = pointY - boxHeight + plotTop - distance;
alignedRight = true;
}
// If it is now above the plot area, align it to the top of the plot area
if (y < plotTop + 5) {
y = plotTop + 5;
// If the tooltip is still covering the point, move it below instead
if (alignedRight && pointY >= y && pointY <= (y + boxHeight)) {
y = pointY + plotTop + distance; // below
}
}
// Now if the tooltip is below the chart, move it up. It's better to cover the
// point than to disappear outside the chart. #834.
if (y + boxHeight > plotTop + plotHeight) {
y = mathMax(plotTop, plotTop + plotHeight - boxHeight - distance); // below
}
return {x: x, y: y};
},
/**
* In case no user defined formatter is given, this will be used. Note that the context
* here is an object holding point, series, x, y etc.
*/
defaultFormatter: function (tooltip) {
var items = this.points || splat(this),
series = items[0].series,
s;
// build the header
s = [series.tooltipHeaderFormatter(items[0])];
// build the values
each(items, function (item) {
series = item.series;
s.push((series.tooltipFormatter && series.tooltipFormatter(item)) ||
item.point.tooltipFormatter(series.tooltipOptions.pointFormat));
});
// footer
s.push(tooltip.options.footerFormat || '');
return s.join('');
},
/**
* Refresh the tooltip's text and position.
* @param {Object} point
*/
refresh: function (point, mouseEvent) {
var tooltip = this,
chart = tooltip.chart,
label = tooltip.label,
options = tooltip.options,
x,
y,
anchor,
textConfig = {},
text,
pointConfig = [],
formatter = options.formatter || tooltip.defaultFormatter,
hoverPoints = chart.hoverPoints,
borderColor,
crosshairsOptions = options.crosshairs,
shared = tooltip.shared,
currentSeries;
clearTimeout(this.hideTimer);
// get the reference point coordinates (pie charts use tooltipPos)
tooltip.followPointer = splat(point)[0].series.tooltipOptions.followPointer;
anchor = tooltip.getAnchor(point, mouseEvent);
x = anchor[0];
y = anchor[1];
// shared tooltip, array is sent over
if (shared && !(point.series && point.series.noSharedTooltip)) {
// hide previous hoverPoints and set new
chart.hoverPoints = point;
if (hoverPoints) {
each(hoverPoints, function (point) {
point.setState();
});
}
each(point, function (item) {
item.setState(HOVER_STATE);
pointConfig.push(item.getLabelConfig());
});
textConfig = {
x: point[0].category,
y: point[0].y
};
textConfig.points = pointConfig;
point = point[0];
// single point tooltip
} else {
textConfig = point.getLabelConfig();
}
text = formatter.call(textConfig, tooltip);
// register the current series
currentSeries = point.series;
// update the inner HTML
if (text === false) {
this.hide();
} else {
// show it
if (tooltip.isHidden) {
stop(label);
label.attr('opacity', 1).show();
}
// update text
label.attr({
text: text
});
// set the stroke color of the box
borderColor = options.borderColor || point.color || currentSeries.color || '#606060';
label.attr({
stroke: borderColor
});
tooltip.updatePosition({ plotX: x, plotY: y });
this.isHidden = false;
}
// crosshairs
if (crosshairsOptions) {
crosshairsOptions = splat(crosshairsOptions); // [x, y]
var path,
i = crosshairsOptions.length,
attribs,
axis,
val,
series;
while (i--) {
series = point.series;
axis = series[i ? 'yAxis' : 'xAxis'];
if (crosshairsOptions[i] && axis) {
val = i ? pick(point.stackY, point.y) : point.x; // #814
if (axis.isLog) { // #1671
val = log2lin(val);
}
if (i === 1 && series.modifyValue) { // #1205, #2316
val = series.modifyValue(val);
}
path = axis.getPlotLinePath(
val,
1
);
if (tooltip.crosshairs[i]) {
tooltip.crosshairs[i].attr({ d: path, visibility: VISIBLE });
} else {
attribs = {
'stroke-width': crosshairsOptions[i].width || 1,
stroke: crosshairsOptions[i].color || '#C0C0C0',
zIndex: crosshairsOptions[i].zIndex || 2
};
if (crosshairsOptions[i].dashStyle) {
attribs.dashstyle = crosshairsOptions[i].dashStyle;
}
tooltip.crosshairs[i] = chart.renderer.path(path)
.attr(attribs)
.add();
}
}
}
}
fireEvent(chart, 'tooltipRefresh', {
text: text,
x: x + chart.plotLeft,
y: y + chart.plotTop,
borderColor: borderColor
});
},
/**
* Find the new position and perform the move
*/
updatePosition: function (point) {
var chart = this.chart,
label = this.label,
pos = (this.options.positioner || this.getPosition).call(
this,
label.width,
label.height,
point
);
// do the move
this.move(
mathRound(pos.x),
mathRound(pos.y),
point.plotX + chart.plotLeft,
point.plotY + chart.plotTop
);
}
};
/**
* The mouse tracker object. All methods starting with "on" are primary DOM event handlers.
* Subsequent methods should be named differently from what they are doing.
* @param {Object} chart The Chart instance
* @param {Object} options The root options object
*/
function Pointer(chart, options) {
this.init(chart, options);
}
Pointer.prototype = {
/**
* Initialize Pointer
*/
init: function (chart, options) {
var chartOptions = options.chart,
chartEvents = chartOptions.events,
zoomType = useCanVG ? '' : chartOptions.zoomType,
inverted = chart.inverted,
zoomX,
zoomY;
// Store references
this.options = options;
this.chart = chart;
// Zoom status
this.zoomX = zoomX = /x/.test(zoomType);
this.zoomY = zoomY = /y/.test(zoomType);
this.zoomHor = (zoomX && !inverted) || (zoomY && inverted);
this.zoomVert = (zoomY && !inverted) || (zoomX && inverted);
// Do we need to handle click on a touch device?
this.runChartClick = chartEvents && !!chartEvents.click;
this.pinchDown = [];
this.lastValidTouch = {};
if (options.tooltip.enabled) {
chart.tooltip = new Tooltip(chart, options.tooltip);
}
this.setDOMEvents();
},
/**
* Add crossbrowser support for chartX and chartY
* @param {Object} e The event object in standard browsers
*/
normalize: function (e, chartPosition) {
var chartX,
chartY,
ePos;
// common IE normalizing
e = e || win.event;
if (!e.target) {
e.target = e.srcElement;
}
// Framework specific normalizing (#1165)
e = washMouseEvent(e);
// iOS
ePos = e.touches ? e.touches.item(0) : e;
// Get mouse position
if (!chartPosition) {
this.chartPosition = chartPosition = offset(this.chart.container);
}
// chartX and chartY
if (ePos.pageX === UNDEFINED) { // IE < 9. #886.
chartX = mathMax(e.x, e.clientX - chartPosition.left); // #2005, #2129: the second case is
// for IE10 quirks mode within framesets
chartY = e.y;
} else {
chartX = ePos.pageX - chartPosition.left;
chartY = ePos.pageY - chartPosition.top;
}
return extend(e, {
chartX: mathRound(chartX),
chartY: mathRound(chartY)
});
},
/**
* Get the click position in terms of axis values.
*
* @param {Object} e A pointer event
*/
getCoordinates: function (e) {
var coordinates = {
xAxis: [],
yAxis: []
};
each(this.chart.axes, function (axis) {
coordinates[axis.isXAxis ? 'xAxis' : 'yAxis'].push({
axis: axis,
value: axis.toValue(e[axis.horiz ? 'chartX' : 'chartY'])
});
});
return coordinates;
},
/**
* Return the index in the tooltipPoints array, corresponding to pixel position in
* the plot area.
*/
getIndex: function (e) {
var chart = this.chart;
return chart.inverted ?
chart.plotHeight + chart.plotTop - e.chartY :
e.chartX - chart.plotLeft;
},
/**
* With line type charts with a single tracker, get the point closest to the mouse.
* Run Point.onMouseOver and display tooltip for the point or points.
*/
runPointActions: function (e) {
var pointer = this,
chart = pointer.chart,
series = chart.series,
tooltip = chart.tooltip,
point,
points,
hoverPoint = chart.hoverPoint,
hoverSeries = chart.hoverSeries,
i,
j,
distance = chart.chartWidth,
index = pointer.getIndex(e),
anchor;
// shared tooltip
if (tooltip && pointer.options.tooltip.shared && !(hoverSeries && hoverSeries.noSharedTooltip)) {
points = [];
// loop over all series and find the ones with points closest to the mouse
i = series.length;
for (j = 0; j < i; j++) {
if (series[j].visible &&
series[j].options.enableMouseTracking !== false &&
!series[j].noSharedTooltip && series[j].tooltipPoints.length) {
point = series[j].tooltipPoints[index];
if (point && point.series) { // not a dummy point, #1544
point._dist = mathAbs(index - point.clientX);
distance = mathMin(distance, point._dist);
points.push(point);
}
}
}
// remove furthest points
i = points.length;
while (i--) {
if (points[i]._dist > distance) {
points.splice(i, 1);
}
}
// refresh the tooltip if necessary
if (points.length && (points[0].clientX !== pointer.hoverX)) {
tooltip.refresh(points, e);
pointer.hoverX = points[0].clientX;
}
}
// separate tooltip and general mouse events
if (hoverSeries && hoverSeries.tracker) { // only use for line-type series with common tracker
// get the point
point = hoverSeries.tooltipPoints[index];
// a new point is hovered, refresh the tooltip
if (point && point !== hoverPoint) {
// trigger the events
point.onMouseOver(e);
}
} else if (tooltip && tooltip.followPointer && !tooltip.isHidden) {
anchor = tooltip.getAnchor([{}], e);
tooltip.updatePosition({ plotX: anchor[0], plotY: anchor[1] });
}
},
/**
* Reset the tracking by hiding the tooltip, the hover series state and the hover point
*
* @param allowMove {Boolean} Instead of destroying the tooltip altogether, allow moving it if possible
*/
reset: function (allowMove) {
var pointer = this,
chart = pointer.chart,
hoverSeries = chart.hoverSeries,
hoverPoint = chart.hoverPoint,
tooltip = chart.tooltip,
tooltipPoints = tooltip && tooltip.shared ? chart.hoverPoints : hoverPoint;
// Narrow in allowMove
allowMove = allowMove && tooltip && tooltipPoints;
// Check if the points have moved outside the plot area, #1003
if (allowMove && splat(tooltipPoints)[0].plotX === UNDEFINED) {
allowMove = false;
}
// Just move the tooltip, #349
if (allowMove) {
tooltip.refresh(tooltipPoints);
// Full reset
} else {
if (hoverPoint) {
hoverPoint.onMouseOut();
}
if (hoverSeries) {
hoverSeries.onMouseOut();
}
if (tooltip) {
tooltip.hide();
tooltip.hideCrosshairs();
}
pointer.hoverX = null;
}
},
/**
* Scale series groups to a certain scale and translation
*/
scaleGroups: function (attribs, clip) {
var chart = this.chart,
seriesAttribs;
// Scale each series
each(chart.series, function (series) {
seriesAttribs = attribs || series.getPlotBox(); // #1701
if (series.xAxis && series.xAxis.zoomEnabled) {
series.group.attr(seriesAttribs);
if (series.markerGroup) {
series.markerGroup.attr(seriesAttribs);
series.markerGroup.clip(clip ? chart.clipRect : null);
}
if (series.dataLabelsGroup) {
series.dataLabelsGroup.attr(seriesAttribs);
}
}
});
// Clip
chart.clipRect.attr(clip || chart.clipBox);
},
/**
* Run translation operations for each direction (horizontal and vertical) independently
*/
pinchTranslateDirection: function (horiz, pinchDown, touches, transform, selectionMarker, clip, lastValidTouch) {
var chart = this.chart,
xy = horiz ? 'x' : 'y',
XY = horiz ? 'X' : 'Y',
sChartXY = 'chart' + XY,
wh = horiz ? 'width' : 'height',
plotLeftTop = chart['plot' + (horiz ? 'Left' : 'Top')],
selectionWH,
selectionXY,
clipXY,
scale = 1,
inverted = chart.inverted,
bounds = chart.bounds[horiz ? 'h' : 'v'],
singleTouch = pinchDown.length === 1,
touch0Start = pinchDown[0][sChartXY],
touch0Now = touches[0][sChartXY],
touch1Start = !singleTouch && pinchDown[1][sChartXY],
touch1Now = !singleTouch && touches[1][sChartXY],
outOfBounds,
transformScale,
scaleKey,
setScale = function () {
if (!singleTouch && mathAbs(touch0Start - touch1Start) > 20) { // Don't zoom if fingers are too close on this axis
scale = mathAbs(touch0Now - touch1Now) / mathAbs(touch0Start - touch1Start);
}
clipXY = ((plotLeftTop - touch0Now) / scale) + touch0Start;
selectionWH = chart['plot' + (horiz ? 'Width' : 'Height')] / scale;
};
// Set the scale, first pass
setScale();
selectionXY = clipXY; // the clip position (x or y) is altered if out of bounds, the selection position is not
// Out of bounds
if (selectionXY < bounds.min) {
selectionXY = bounds.min;
outOfBounds = true;
} else if (selectionXY + selectionWH > bounds.max) {
selectionXY = bounds.max - selectionWH;
outOfBounds = true;
}
// Is the chart dragged off its bounds, determined by dataMin and dataMax?
if (outOfBounds) {
// Modify the touchNow position in order to create an elastic drag movement. This indicates
// to the user that the chart is responsive but can't be dragged further.
touch0Now -= 0.8 * (touch0Now - lastValidTouch[xy][0]);
if (!singleTouch) {
touch1Now -= 0.8 * (touch1Now - lastValidTouch[xy][1]);
}
// Set the scale, second pass to adapt to the modified touchNow positions
setScale();
} else {
lastValidTouch[xy] = [touch0Now, touch1Now];
}
// Set geometry for clipping, selection and transformation
if (!inverted) { // TODO: implement clipping for inverted charts
clip[xy] = clipXY - plotLeftTop;
clip[wh] = selectionWH;
}
scaleKey = inverted ? (horiz ? 'scaleY' : 'scaleX') : 'scale' + XY;
transformScale = inverted ? 1 / scale : scale;
selectionMarker[wh] = selectionWH;
selectionMarker[xy] = selectionXY;
transform[scaleKey] = scale;
transform['translate' + XY] = (transformScale * plotLeftTop) + (touch0Now - (transformScale * touch0Start));
},
/**
* Handle touch events with two touches
*/
pinch: function (e) {
var self = this,
chart = self.chart,
pinchDown = self.pinchDown,
followTouchMove = chart.tooltip && chart.tooltip.options.followTouchMove,
touches = e.touches,
touchesLength = touches.length,
lastValidTouch = self.lastValidTouch,
zoomHor = self.zoomHor || self.pinchHor,
zoomVert = self.zoomVert || self.pinchVert,
hasZoom = zoomHor || zoomVert,
selectionMarker = self.selectionMarker,
transform = {},
fireClickEvent = touchesLength === 1 && ((self.inClass(e.target, PREFIX + 'tracker') &&
chart.runTrackerClick) || chart.runChartClick),
clip = {};
// On touch devices, only proceed to trigger click if a handler is defined
if ((hasZoom || followTouchMove) && !fireClickEvent) {
e.preventDefault();
}
// Normalize each touch
map(touches, function (e) {
return self.normalize(e);
});
// Register the touch start position
if (e.type === 'touchstart') {
each(touches, function (e, i) {
pinchDown[i] = { chartX: e.chartX, chartY: e.chartY };
});
lastValidTouch.x = [pinchDown[0].chartX, pinchDown[1] && pinchDown[1].chartX];
lastValidTouch.y = [pinchDown[0].chartY, pinchDown[1] && pinchDown[1].chartY];
// Identify the data bounds in pixels
each(chart.axes, function (axis) {
if (axis.zoomEnabled) {
var bounds = chart.bounds[axis.horiz ? 'h' : 'v'],
minPixelPadding = axis.minPixelPadding,
min = axis.toPixels(axis.dataMin),
max = axis.toPixels(axis.dataMax),
absMin = mathMin(min, max),
absMax = mathMax(min, max);
// Store the bounds for use in the touchmove handler
bounds.min = mathMin(axis.pos, absMin - minPixelPadding);
bounds.max = mathMax(axis.pos + axis.len, absMax + minPixelPadding);
}
});
// Event type is touchmove, handle panning and pinching
} else if (pinchDown.length) { // can be 0 when releasing, if touchend fires first
// Set the marker
if (!selectionMarker) {
self.selectionMarker = selectionMarker = extend({
destroy: noop
}, chart.plotBox);
}
if (zoomHor) {
self.pinchTranslateDirection(true, pinchDown, touches, transform, selectionMarker, clip, lastValidTouch);
}
if (zoomVert) {
self.pinchTranslateDirection(false, pinchDown, touches, transform, selectionMarker, clip, lastValidTouch);
}
self.hasPinched = hasZoom;
// Scale and translate the groups to provide visual feedback during pinching
self.scaleGroups(transform, clip);
// Optionally move the tooltip on touchmove
if (!hasZoom && followTouchMove && touchesLength === 1) {
this.runPointActions(self.normalize(e));
}
}
},
/**
* Start a drag operation
*/
dragStart: function (e) {
var chart = this.chart;
// Record the start position
chart.mouseIsDown = e.type;
chart.cancelClick = false;
chart.mouseDownX = this.mouseDownX = e.chartX;
chart.mouseDownY = this.mouseDownY = e.chartY;
},
/**
* Perform a drag operation in response to a mousemove event while the mouse is down
*/
drag: function (e) {
var chart = this.chart,
chartOptions = chart.options.chart,
chartX = e.chartX,
chartY = e.chartY,
zoomHor = this.zoomHor,
zoomVert = this.zoomVert,
plotLeft = chart.plotLeft,
plotTop = chart.plotTop,
plotWidth = chart.plotWidth,
plotHeight = chart.plotHeight,
clickedInside,
size,
mouseDownX = this.mouseDownX,
mouseDownY = this.mouseDownY;
// If the mouse is outside the plot area, adjust to cooordinates
// inside to prevent the selection marker from going outside
if (chartX < plotLeft) {
chartX = plotLeft;
} else if (chartX > plotLeft + plotWidth) {
chartX = plotLeft + plotWidth;
}
if (chartY < plotTop) {
chartY = plotTop;
} else if (chartY > plotTop + plotHeight) {
chartY = plotTop + plotHeight;
}
// determine if the mouse has moved more than 10px
this.hasDragged = Math.sqrt(
Math.pow(mouseDownX - chartX, 2) +
Math.pow(mouseDownY - chartY, 2)
);
if (this.hasDragged > 10) {
clickedInside = chart.isInsidePlot(mouseDownX - plotLeft, mouseDownY - plotTop);
// make a selection
if (chart.hasCartesianSeries && (this.zoomX || this.zoomY) && clickedInside) {
if (!this.selectionMarker) {
this.selectionMarker = chart.renderer.rect(
plotLeft,
plotTop,
zoomHor ? 1 : plotWidth,
zoomVert ? 1 : plotHeight,
0
)
.attr({
fill: chartOptions.selectionMarkerFill || 'rgba(69,114,167,0.25)',
zIndex: 7
})
.add();
}
}
// adjust the width of the selection marker
if (this.selectionMarker && zoomHor) {
size = chartX - mouseDownX;
this.selectionMarker.attr({
width: mathAbs(size),
x: (size > 0 ? 0 : size) + mouseDownX
});
}
// adjust the height of the selection marker
if (this.selectionMarker && zoomVert) {
size = chartY - mouseDownY;
this.selectionMarker.attr({
height: mathAbs(size),
y: (size > 0 ? 0 : size) + mouseDownY
});
}
// panning
if (clickedInside && !this.selectionMarker && chartOptions.panning) {
chart.pan(e, chartOptions.panning);
}
}
},
/**
* On mouse up or touch end across the entire document, drop the selection.
*/
drop: function (e) {
var chart = this.chart,
hasPinched = this.hasPinched;
if (this.selectionMarker) {
var selectionData = {
xAxis: [],
yAxis: [],
originalEvent: e.originalEvent || e
},
selectionBox = this.selectionMarker,
selectionLeft = selectionBox.x,
selectionTop = selectionBox.y,
runZoom;
// a selection has been made
if (this.hasDragged || hasPinched) {
// record each axis' min and max
each(chart.axes, function (axis) {
if (axis.zoomEnabled) {
var horiz = axis.horiz,
selectionMin = axis.toValue((horiz ? selectionLeft : selectionTop)),
selectionMax = axis.toValue((horiz ? selectionLeft + selectionBox.width : selectionTop + selectionBox.height));
if (!isNaN(selectionMin) && !isNaN(selectionMax)) { // #859
selectionData[axis.xOrY + 'Axis'].push({
axis: axis,
min: mathMin(selectionMin, selectionMax), // for reversed axes,
max: mathMax(selectionMin, selectionMax)
});
runZoom = true;
}
}
});
if (runZoom) {
fireEvent(chart, 'selection', selectionData, function (args) {
chart.zoom(extend(args, hasPinched ? { animation: false } : null));
});
}
}
this.selectionMarker = this.selectionMarker.destroy();
// Reset scaling preview
if (hasPinched) {
this.scaleGroups();
}
}
// Reset all
if (chart) { // it may be destroyed on mouse up - #877
css(chart.container, { cursor: chart._cursor });
chart.cancelClick = this.hasDragged > 10; // #370
chart.mouseIsDown = this.hasDragged = this.hasPinched = false;
this.pinchDown = [];
}
},
onContainerMouseDown: function (e) {
e = this.normalize(e);
// issue #295, dragging not always working in Firefox
if (e.preventDefault) {
e.preventDefault();
}
this.dragStart(e);
},
onDocumentMouseUp: function (e) {
this.drop(e);
},
/**
* Special handler for mouse move that will hide the tooltip when the mouse leaves the plotarea.
* Issue #149 workaround. The mouseleave event does not always fire.
*/
onDocumentMouseMove: function (e) {
var chart = this.chart,
chartPosition = this.chartPosition,
hoverSeries = chart.hoverSeries;
e = this.normalize(e, chartPosition);
// If we're outside, hide the tooltip
if (chartPosition && hoverSeries && !this.inClass(e.target, 'highcharts-tracker') &&
!chart.isInsidePlot(e.chartX - chart.plotLeft, e.chartY - chart.plotTop)) {
this.reset();
}
},
/**
* When mouse leaves the container, hide the tooltip.
*/
onContainerMouseLeave: function () {
this.reset();
this.chartPosition = null; // also reset the chart position, used in #149 fix
},
// The mousemove, touchmove and touchstart event handler
onContainerMouseMove: function (e) {
var chart = this.chart;
// normalize
e = this.normalize(e);
// #295
e.returnValue = false;
if (chart.mouseIsDown === 'mousedown') {
this.drag(e);
}
// Show the tooltip and run mouse over events (#977)
if ((this.inClass(e.target, 'highcharts-tracker') ||
chart.isInsidePlot(e.chartX - chart.plotLeft, e.chartY - chart.plotTop)) && !chart.openMenu) {
this.runPointActions(e);
}
},
/**
* Utility to detect whether an element has, or has a parent with, a specific
* class name. Used on detection of tracker objects and on deciding whether
* hovering the tooltip should cause the active series to mouse out.
*/
inClass: function (element, className) {
var elemClassName;
while (element) {
elemClassName = attr(element, 'class');
if (elemClassName) {
if (elemClassName.indexOf(className) !== -1) {
return true;
} else if (elemClassName.indexOf(PREFIX + 'container') !== -1) {
return false;
}
}
element = element.parentNode;
}
},
onTrackerMouseOut: function (e) {
var series = this.chart.hoverSeries;
if (series && !series.options.stickyTracking && !this.inClass(e.toElement || e.relatedTarget, PREFIX + 'tooltip')) {
series.onMouseOut();
}
},
onContainerClick: function (e) {
var chart = this.chart,
hoverPoint = chart.hoverPoint,
plotLeft = chart.plotLeft,
plotTop = chart.plotTop,
inverted = chart.inverted,
chartPosition,
plotX,
plotY;
e = this.normalize(e);
e.cancelBubble = true; // IE specific
if (!chart.cancelClick) {
// On tracker click, fire the series and point events. #783, #1583
if (hoverPoint && this.inClass(e.target, PREFIX + 'tracker')) {
chartPosition = this.chartPosition;
plotX = hoverPoint.plotX;
plotY = hoverPoint.plotY;
// add page position info
extend(hoverPoint, {
pageX: chartPosition.left + plotLeft +
(inverted ? chart.plotWidth - plotY : plotX),
pageY: chartPosition.top + plotTop +
(inverted ? chart.plotHeight - plotX : plotY)
});
// the series click event
fireEvent(hoverPoint.series, 'click', extend(e, {
point: hoverPoint
}));
// the point click event
if (chart.hoverPoint) { // it may be destroyed (#1844)
hoverPoint.firePointEvent('click', e);
}
// When clicking outside a tracker, fire a chart event
} else {
extend(e, this.getCoordinates(e));
// fire a click event in the chart
if (chart.isInsidePlot(e.chartX - plotLeft, e.chartY - plotTop)) {
fireEvent(chart, 'click', e);
}
}
}
},
onContainerTouchStart: function (e) {
var chart = this.chart;
if (e.touches.length === 1) {
e = this.normalize(e);
if (chart.isInsidePlot(e.chartX - chart.plotLeft, e.chartY - chart.plotTop)) {
// Prevent the click pseudo event from firing unless it is set in the options
/*if (!chart.runChartClick) {
e.preventDefault();
}*/
// Run mouse events and display tooltip etc
this.runPointActions(e);
this.pinch(e);
} else {
// Hide the tooltip on touching outside the plot area (#1203)
this.reset();
}
} else if (e.touches.length === 2) {
this.pinch(e);
}
},
onContainerTouchMove: function (e) {
if (e.touches.length === 1 || e.touches.length === 2) {
this.pinch(e);
}
},
onDocumentTouchEnd: function (e) {
this.drop(e);
},
/**
* Set the JS DOM events on the container and document. This method should contain
* a one-to-one assignment between methods and their handlers. Any advanced logic should
* be moved to the handler reflecting the event's name.
*/
setDOMEvents: function () {
var pointer = this,
container = pointer.chart.container,
events;
this._events = events = [
[container, 'onmousedown', 'onContainerMouseDown'],
[container, 'onmousemove', 'onContainerMouseMove'],
[container, 'onclick', 'onContainerClick'],
[container, 'mouseleave', 'onContainerMouseLeave'],
[doc, 'mousemove', 'onDocumentMouseMove'],
[doc, 'mouseup', 'onDocumentMouseUp']
];
if (hasTouch) {
events.push(
[container, 'ontouchstart', 'onContainerTouchStart'],
[container, 'ontouchmove', 'onContainerTouchMove'],
[doc, 'touchend', 'onDocumentTouchEnd']
);
}
each(events, function (eventConfig) {
// First, create the callback function that in turn calls the method on Pointer
pointer['_' + eventConfig[2]] = function (e) {
pointer[eventConfig[2]](e);
};
// Now attach the function, either as a direct property or through addEvent
if (eventConfig[1].indexOf('on') === 0) {
eventConfig[0][eventConfig[1]] = pointer['_' + eventConfig[2]];
} else {
addEvent(eventConfig[0], eventConfig[1], pointer['_' + eventConfig[2]]);
}
});
},
/**
* Destroys the Pointer object and disconnects DOM events.
*/
destroy: function () {
var pointer = this;
// Release all DOM events
each(pointer._events, function (eventConfig) {
if (eventConfig[1].indexOf('on') === 0) {
eventConfig[0][eventConfig[1]] = null; // delete breaks oldIE
} else {
removeEvent(eventConfig[0], eventConfig[1], pointer['_' + eventConfig[2]]);
}
});
delete pointer._events;
// memory and CPU leak
clearInterval(pointer.tooltipTimeout);
}
};
/**
* The overview of the chart's series
*/
function Legend(chart, options) {
this.init(chart, options);
}
Legend.prototype = {
/**
* Initialize the legend
*/
init: function (chart, options) {
var legend = this,
itemStyle = options.itemStyle,
padding = pick(options.padding, 8),
itemMarginTop = options.itemMarginTop || 0;
this.options = options;
if (!options.enabled) {
return;
}
legend.baseline = pInt(itemStyle.fontSize) + 3 + itemMarginTop; // used in Series prototype
legend.itemStyle = itemStyle;
legend.itemHiddenStyle = merge(itemStyle, options.itemHiddenStyle);
legend.itemMarginTop = itemMarginTop;
legend.padding = padding;
legend.initialItemX = padding;
legend.initialItemY = padding - 5; // 5 is the number of pixels above the text
legend.maxItemWidth = 0;
legend.chart = chart;
legend.itemHeight = 0;
legend.lastLineHeight = 0;
// Render it
legend.render();
// move checkboxes
addEvent(legend.chart, 'endResize', function () {
legend.positionCheckboxes();
});
},
/**
* Set the colors for the legend item
* @param {Object} item A Series or Point instance
* @param {Object} visible Dimmed or colored
*/
colorizeItem: function (item, visible) {
var legend = this,
options = legend.options,
legendItem = item.legendItem,
legendLine = item.legendLine,
legendSymbol = item.legendSymbol,
hiddenColor = legend.itemHiddenStyle.color,
textColor = visible ? options.itemStyle.color : hiddenColor,
symbolColor = visible ? item.color : hiddenColor,
markerOptions = item.options && item.options.marker,
symbolAttr = {
stroke: symbolColor,
fill: symbolColor
},
key,
val;
if (legendItem) {
legendItem.css({ fill: textColor, color: textColor }); // color for #1553, oldIE
}
if (legendLine) {
legendLine.attr({ stroke: symbolColor });
}
if (legendSymbol) {
// Apply marker options
if (markerOptions && legendSymbol.isMarker) { // #585
markerOptions = item.convertAttribs(markerOptions);
for (key in markerOptions) {
val = markerOptions[key];
if (val !== UNDEFINED) {
symbolAttr[key] = val;
}
}
}
legendSymbol.attr(symbolAttr);
}
},
/**
* Position the legend item
* @param {Object} item A Series or Point instance
*/
positionItem: function (item) {
var legend = this,
options = legend.options,
symbolPadding = options.symbolPadding,
ltr = !options.rtl,
legendItemPos = item._legendItemPos,
itemX = legendItemPos[0],
itemY = legendItemPos[1],
checkbox = item.checkbox;
if (item.legendGroup) {
item.legendGroup.translate(
ltr ? itemX : legend.legendWidth - itemX - 2 * symbolPadding - 4,
itemY
);
}
if (checkbox) {
checkbox.x = itemX;
checkbox.y = itemY;
}
},
/**
* Destroy a single legend item
* @param {Object} item The series or point
*/
destroyItem: function (item) {
var checkbox = item.checkbox;
// destroy SVG elements
each(['legendItem', 'legendLine', 'legendSymbol', 'legendGroup'], function (key) {
if (item[key]) {
item[key] = item[key].destroy();
}
});
if (checkbox) {
discardElement(item.checkbox);
}
},
/**
* Destroys the legend.
*/
destroy: function () {
var legend = this,
legendGroup = legend.group,
box = legend.box;
if (box) {
legend.box = box.destroy();
}
if (legendGroup) {
legend.group = legendGroup.destroy();
}
},
/**
* Position the checkboxes after the width is determined
*/
positionCheckboxes: function (scrollOffset) {
var alignAttr = this.group.alignAttr,
translateY,
clipHeight = this.clipHeight || this.legendHeight;
if (alignAttr) {
translateY = alignAttr.translateY;
each(this.allItems, function (item) {
var checkbox = item.checkbox,
top;
if (checkbox) {
top = (translateY + checkbox.y + (scrollOffset || 0) + 3);
css(checkbox, {
left: (alignAttr.translateX + item.legendItemWidth + checkbox.x - 20) + PX,
top: top + PX,
display: top > translateY - 6 && top < translateY + clipHeight - 6 ? '' : NONE
});
}
});
}
},
/**
* Render the legend title on top of the legend
*/
renderTitle: function () {
var options = this.options,
padding = this.padding,
titleOptions = options.title,
titleHeight = 0,
bBox;
if (titleOptions.text) {
if (!this.title) {
this.title = this.chart.renderer.label(titleOptions.text, padding - 3, padding - 4, null, null, null, null, null, 'legend-title')
.attr({ zIndex: 1 })
.css(titleOptions.style)
.add(this.group);
}
bBox = this.title.getBBox();
titleHeight = bBox.height;
this.offsetWidth = bBox.width; // #1717
this.contentGroup.attr({ translateY: titleHeight });
}
this.titleHeight = titleHeight;
},
/**
* Render a single specific legend item
* @param {Object} item A series or point
*/
renderItem: function (item) {
var legend = this,
chart = legend.chart,
renderer = chart.renderer,
options = legend.options,
horizontal = options.layout === 'horizontal',
symbolWidth = options.symbolWidth,
symbolPadding = options.symbolPadding,
itemStyle = legend.itemStyle,
itemHiddenStyle = legend.itemHiddenStyle,
padding = legend.padding,
itemDistance = horizontal ? pick(options.itemDistance, 8) : 0,
ltr = !options.rtl,
itemHeight,
widthOption = options.width,
itemMarginBottom = options.itemMarginBottom || 0,
itemMarginTop = legend.itemMarginTop,
initialItemX = legend.initialItemX,
bBox,
itemWidth,
li = item.legendItem,
series = item.series || item,
itemOptions = series.options,
showCheckbox = itemOptions.showCheckbox,
useHTML = options.useHTML;
if (!li) { // generate it once, later move it
// Generate the group box
// A group to hold the symbol and text. Text is to be appended in Legend class.
item.legendGroup = renderer.g('legend-item')
.attr({ zIndex: 1 })
.add(legend.scrollGroup);
// Draw the legend symbol inside the group box
series.drawLegendSymbol(legend, item);
// Generate the list item text and add it to the group
item.legendItem = li = renderer.text(
options.labelFormat ? format(options.labelFormat, item) : options.labelFormatter.call(item),
ltr ? symbolWidth + symbolPadding : -symbolPadding,
legend.baseline,
useHTML
)
.css(merge(item.visible ? itemStyle : itemHiddenStyle)) // merge to prevent modifying original (#1021)
.attr({
align: ltr ? 'left' : 'right',
zIndex: 2
})
.add(item.legendGroup);
// Set the events on the item group, or in case of useHTML, the item itself (#1249)
(useHTML ? li : item.legendGroup).on('mouseover', function () {
item.setState(HOVER_STATE);
li.css(legend.options.itemHoverStyle);
})
.on('mouseout', function () {
li.css(item.visible ? itemStyle : itemHiddenStyle);
item.setState();
})
.on('click', function (event) {
var strLegendItemClick = 'legendItemClick',
fnLegendItemClick = function () {
item.setVisible();
};
// Pass over the click/touch event. #4.
event = {
browserEvent: event
};
// click the name or symbol
if (item.firePointEvent) { // point
item.firePointEvent(strLegendItemClick, event, fnLegendItemClick);
} else {
fireEvent(item, strLegendItemClick, event, fnLegendItemClick);
}
});
// Colorize the items
legend.colorizeItem(item, item.visible);
// add the HTML checkbox on top
if (itemOptions && showCheckbox) {
item.checkbox = createElement('input', {
type: 'checkbox',
checked: item.selected,
defaultChecked: item.selected // required by IE7
}, options.itemCheckboxStyle, chart.container);
addEvent(item.checkbox, 'click', function (event) {
var target = event.target;
fireEvent(item, 'checkboxClick', {
checked: target.checked
},
function () {
item.select();
}
);
});
}
}
// calculate the positions for the next line
bBox = li.getBBox();
itemWidth = item.legendItemWidth =
options.itemWidth || symbolWidth + symbolPadding + bBox.width + itemDistance +
(showCheckbox ? 20 : 0);
legend.itemHeight = itemHeight = bBox.height;
// if the item exceeds the width, start a new line
if (horizontal && legend.itemX - initialItemX + itemWidth >
(widthOption || (chart.chartWidth - 2 * padding - initialItemX))) {
legend.itemX = initialItemX;
legend.itemY += itemMarginTop + legend.lastLineHeight + itemMarginBottom;
legend.lastLineHeight = 0; // reset for next line
}
// If the item exceeds the height, start a new column
/*if (!horizontal && legend.itemY + options.y + itemHeight > chart.chartHeight - spacingTop - spacingBottom) {
legend.itemY = legend.initialItemY;
legend.itemX += legend.maxItemWidth;
legend.maxItemWidth = 0;
}*/
// Set the edge positions
legend.maxItemWidth = mathMax(legend.maxItemWidth, itemWidth);
legend.lastItemY = itemMarginTop + legend.itemY + itemMarginBottom;
legend.lastLineHeight = mathMax(itemHeight, legend.lastLineHeight); // #915
// cache the position of the newly generated or reordered items
item._legendItemPos = [legend.itemX, legend.itemY];
// advance
if (horizontal) {
legend.itemX += itemWidth;
} else {
legend.itemY += itemMarginTop + itemHeight + itemMarginBottom;
legend.lastLineHeight = itemHeight;
}
// the width of the widest item
legend.offsetWidth = widthOption || mathMax(
(horizontal ? legend.itemX - initialItemX - itemDistance : itemWidth) + padding,
legend.offsetWidth
);
},
/**
* Render the legend. This method can be called both before and after
* chart.render. If called after, it will only rearrange items instead
* of creating new ones.
*/
render: function () {
var legend = this,
chart = legend.chart,
renderer = chart.renderer,
legendGroup = legend.group,
allItems,
display,
legendWidth,
legendHeight,
box = legend.box,
options = legend.options,
padding = legend.padding,
legendBorderWidth = options.borderWidth,
legendBackgroundColor = options.backgroundColor;
legend.itemX = legend.initialItemX;
legend.itemY = legend.initialItemY;
legend.offsetWidth = 0;
legend.lastItemY = 0;
if (!legendGroup) {
legend.group = legendGroup = renderer.g('legend')
.attr({ zIndex: 7 })
.add();
legend.contentGroup = renderer.g()
.attr({ zIndex: 1 }) // above background
.add(legendGroup);
legend.scrollGroup = renderer.g()
.add(legend.contentGroup);
}
legend.renderTitle();
// add each series or point
allItems = [];
each(chart.series, function (serie) {
var seriesOptions = serie.options;
if (!seriesOptions.showInLegend || defined(seriesOptions.linkedTo)) {
return;
}
// use points or series for the legend item depending on legendType
allItems = allItems.concat(
serie.legendItems ||
(seriesOptions.legendType === 'point' ?
serie.data :
serie)
);
});
// sort by legendIndex
stableSort(allItems, function (a, b) {
return ((a.options && a.options.legendIndex) || 0) - ((b.options && b.options.legendIndex) || 0);
});
// reversed legend
if (options.reversed) {
allItems.reverse();
}
legend.allItems = allItems;
legend.display = display = !!allItems.length;
// render the items
each(allItems, function (item) {
legend.renderItem(item);
});
// Draw the border
legendWidth = options.width || legend.offsetWidth;
legendHeight = legend.lastItemY + legend.lastLineHeight + legend.titleHeight;
legendHeight = legend.handleOverflow(legendHeight);
if (legendBorderWidth || legendBackgroundColor) {
legendWidth += padding;
legendHeight += padding;
if (!box) {
legend.box = box = renderer.rect(
0,
0,
legendWidth,
legendHeight,
options.borderRadius,
legendBorderWidth || 0
).attr({
stroke: options.borderColor,
'stroke-width': legendBorderWidth || 0,
fill: legendBackgroundColor || NONE
})
.add(legendGroup)
.shadow(options.shadow);
box.isNew = true;
} else if (legendWidth > 0 && legendHeight > 0) {
box[box.isNew ? 'attr' : 'animate'](
box.crisp(null, null, null, legendWidth, legendHeight)
);
box.isNew = false;
}
// hide the border if no items
box[display ? 'show' : 'hide']();
}
legend.legendWidth = legendWidth;
legend.legendHeight = legendHeight;
// Now that the legend width and height are established, put the items in the
// final position
each(allItems, function (item) {
legend.positionItem(item);
});
// 1.x compatibility: positioning based on style
/*var props = ['left', 'right', 'top', 'bottom'],
prop,
i = 4;
while (i--) {
prop = props[i];
if (options.style[prop] && options.style[prop] !== 'auto') {
options[i < 2 ? 'align' : 'verticalAlign'] = prop;
options[i < 2 ? 'x' : 'y'] = pInt(options.style[prop]) * (i % 2 ? -1 : 1);
}
}*/
if (display) {
legendGroup.align(extend({
width: legendWidth,
height: legendHeight
}, options), true, 'spacingBox');
}
if (!chart.isResizing) {
this.positionCheckboxes();
}
},
/**
* Set up the overflow handling by adding navigation with up and down arrows below the
* legend.
*/
handleOverflow: function (legendHeight) {
var legend = this,
chart = this.chart,
renderer = chart.renderer,
pageCount,
options = this.options,
optionsY = options.y,
alignTop = options.verticalAlign === 'top',
spaceHeight = chart.spacingBox.height + (alignTop ? -optionsY : optionsY) - this.padding,
maxHeight = options.maxHeight,
clipHeight,
clipRect = this.clipRect,
navOptions = options.navigation,
animation = pick(navOptions.animation, true),
arrowSize = navOptions.arrowSize || 12,
nav = this.nav;
// Adjust the height
if (options.layout === 'horizontal') {
spaceHeight /= 2;
}
if (maxHeight) {
spaceHeight = mathMin(spaceHeight, maxHeight);
}
// Reset the legend height and adjust the clipping rectangle
if (legendHeight > spaceHeight && !options.useHTML) {
this.clipHeight = clipHeight = spaceHeight - 20 - this.titleHeight;
this.pageCount = pageCount = mathCeil(legendHeight / clipHeight);
this.currentPage = pick(this.currentPage, 1);
this.fullHeight = legendHeight;
// Only apply clipping if needed. Clipping causes blurred legend in PDF export (#1787)
if (!clipRect) {
clipRect = legend.clipRect = renderer.clipRect(0, 0, 9999, 0);
legend.contentGroup.clip(clipRect);
}
clipRect.attr({
height: clipHeight
});
// Add navigation elements
if (!nav) {
this.nav = nav = renderer.g().attr({ zIndex: 1 }).add(this.group);
this.up = renderer.symbol('triangle', 0, 0, arrowSize, arrowSize)
.on('click', function () {
legend.scroll(-1, animation);
})
.add(nav);
this.pager = renderer.text('', 15, 10)
.css(navOptions.style)
.add(nav);
this.down = renderer.symbol('triangle-down', 0, 0, arrowSize, arrowSize)
.on('click', function () {
legend.scroll(1, animation);
})
.add(nav);
}
// Set initial position
legend.scroll(0);
legendHeight = spaceHeight;
} else if (nav) {
clipRect.attr({
height: chart.chartHeight
});
nav.hide();
this.scrollGroup.attr({
translateY: 1
});
this.clipHeight = 0; // #1379
}
return legendHeight;
},
/**
* Scroll the legend by a number of pages
* @param {Object} scrollBy
* @param {Object} animation
*/
scroll: function (scrollBy, animation) {
var pageCount = this.pageCount,
currentPage = this.currentPage + scrollBy,
clipHeight = this.clipHeight,
navOptions = this.options.navigation,
activeColor = navOptions.activeColor,
inactiveColor = navOptions.inactiveColor,
pager = this.pager,
padding = this.padding,
scrollOffset;
// When resizing while looking at the last page
if (currentPage > pageCount) {
currentPage = pageCount;
}
if (currentPage > 0) {
if (animation !== UNDEFINED) {
setAnimation(animation, this.chart);
}
this.nav.attr({
translateX: padding,
translateY: clipHeight + 7 + this.titleHeight,
visibility: VISIBLE
});
this.up.attr({
fill: currentPage === 1 ? inactiveColor : activeColor
})
.css({
cursor: currentPage === 1 ? 'default' : 'pointer'
});
pager.attr({
text: currentPage + '/' + this.pageCount
});
this.down.attr({
x: 18 + this.pager.getBBox().width, // adjust to text width
fill: currentPage === pageCount ? inactiveColor : activeColor
})
.css({
cursor: currentPage === pageCount ? 'default' : 'pointer'
});
scrollOffset = -mathMin(clipHeight * (currentPage - 1), this.fullHeight - clipHeight + padding) + 1;
this.scrollGroup.animate({
translateY: scrollOffset
});
pager.attr({
text: currentPage + '/' + pageCount
});
this.currentPage = currentPage;
this.positionCheckboxes(scrollOffset);
}
}
};
// Workaround for #2030, horizontal legend items not displaying in IE11 Preview.
// TODO: When IE11 is released, check again for this bug, and remove the fix
// or make a better one.
if (/Trident.*?11\.0/.test(userAgent)) {
wrap(Legend.prototype, 'positionItem', function (proceed, item) {
var legend = this;
setTimeout(function () {
proceed.call(legend, item);
});
});
}
/**
* The chart class
* @param {Object} options
* @param {Function} callback Function to run when the chart has loaded
*/
function Chart() {
this.init.apply(this, arguments);
}
Chart.prototype = {
/**
* Initialize the chart
*/
init: function (userOptions, callback) {
// Handle regular options
var options,
seriesOptions = userOptions.series; // skip merging data points to increase performance
userOptions.series = null;
options = merge(defaultOptions, userOptions); // do the merge
options.series = userOptions.series = seriesOptions; // set back the series data
var optionsChart = options.chart;
// Create margin & spacing array
this.margin = this.splashArray('margin', optionsChart);
this.spacing = this.splashArray('spacing', optionsChart);
var chartEvents = optionsChart.events;
//this.runChartClick = chartEvents && !!chartEvents.click;
this.bounds = { h: {}, v: {} }; // Pixel data bounds for touch zoom
this.callback = callback;
this.isResizing = 0;
this.options = options;
//chartTitleOptions = UNDEFINED;
//chartSubtitleOptions = UNDEFINED;
this.axes = [];
this.series = [];
this.hasCartesianSeries = optionsChart.showAxes;
//this.axisOffset = UNDEFINED;
//this.maxTicks = UNDEFINED; // handle the greatest amount of ticks on grouped axes
//this.inverted = UNDEFINED;
//this.loadingShown = UNDEFINED;
//this.container = UNDEFINED;
//this.chartWidth = UNDEFINED;
//this.chartHeight = UNDEFINED;
//this.marginRight = UNDEFINED;
//this.marginBottom = UNDEFINED;
//this.containerWidth = UNDEFINED;
//this.containerHeight = UNDEFINED;
//this.oldChartWidth = UNDEFINED;
//this.oldChartHeight = UNDEFINED;
//this.renderTo = UNDEFINED;
//this.renderToClone = UNDEFINED;
//this.spacingBox = UNDEFINED
//this.legend = UNDEFINED;
// Elements
//this.chartBackground = UNDEFINED;
//this.plotBackground = UNDEFINED;
//this.plotBGImage = UNDEFINED;
//this.plotBorder = UNDEFINED;
//this.loadingDiv = UNDEFINED;
//this.loadingSpan = UNDEFINED;
var chart = this,
eventType;
// Add the chart to the global lookup
chart.index = charts.length;
charts.push(chart);
// Set up auto resize
if (optionsChart.reflow !== false) {
addEvent(chart, 'load', function () {
chart.initReflow();
});
}
// Chart event handlers
if (chartEvents) {
for (eventType in chartEvents) {
addEvent(chart, eventType, chartEvents[eventType]);
}
}
chart.xAxis = [];
chart.yAxis = [];
// Expose methods and variables
chart.animation = useCanVG ? false : pick(optionsChart.animation, true);
chart.pointCount = 0;
chart.counters = new ChartCounters();
chart.firstRender();
},
/**
* Initialize an individual series, called internally before render time
*/
initSeries: function (options) {
var chart = this,
optionsChart = chart.options.chart,
type = options.type || optionsChart.type || optionsChart.defaultSeriesType,
series,
constr = seriesTypes[type];
// No such series type
if (!constr) {
error(17, true);
}
series = new constr();
series.init(this, options);
return series;
},
/**
* Add a series dynamically after time
*
* @param {Object} options The config options
* @param {Boolean} redraw Whether to redraw the chart after adding. Defaults to true.
* @param {Boolean|Object} animation Whether to apply animation, and optionally animation
* configuration
*
* @return {Object} series The newly created series object
*/
addSeries: function (options, redraw, animation) {
var series,
chart = this;
if (options) {
redraw = pick(redraw, true); // defaults to true
fireEvent(chart, 'addSeries', { options: options }, function () {
series = chart.initSeries(options);
chart.isDirtyLegend = true; // the series array is out of sync with the display
chart.linkSeries();
if (redraw) {
chart.redraw(animation);
}
});
}
return series;
},
/**
* Add an axis to the chart
* @param {Object} options The axis option
* @param {Boolean} isX Whether it is an X axis or a value axis
*/
addAxis: function (options, isX, redraw, animation) {
var key = isX ? 'xAxis' : 'yAxis',
chartOptions = this.options,
axis;
/*jslint unused: false*/
axis = new Axis(this, merge(options, {
index: this[key].length,
isX: isX
}));
/*jslint unused: true*/
// Push the new axis options to the chart options
chartOptions[key] = splat(chartOptions[key] || {});
chartOptions[key].push(options);
if (pick(redraw, true)) {
this.redraw(animation);
}
},
/**
* Check whether a given point is within the plot area
*
* @param {Number} plotX Pixel x relative to the plot area
* @param {Number} plotY Pixel y relative to the plot area
* @param {Boolean} inverted Whether the chart is inverted
*/
isInsidePlot: function (plotX, plotY, inverted) {
var x = inverted ? plotY : plotX,
y = inverted ? plotX : plotY;
return x >= 0 &&
x <= this.plotWidth &&
y >= 0 &&
y <= this.plotHeight;
},
/**
* Adjust all axes tick amounts
*/
adjustTickAmounts: function () {
if (this.options.chart.alignTicks !== false) {
each(this.axes, function (axis) {
axis.adjustTickAmount();
});
}
this.maxTicks = null;
},
/**
* Redraw legend, axes or series based on updated data
*
* @param {Boolean|Object} animation Whether to apply animation, and optionally animation
* configuration
*/
redraw: function (animation) {
var chart = this,
axes = chart.axes,
series = chart.series,
pointer = chart.pointer,
legend = chart.legend,
redrawLegend = chart.isDirtyLegend,
hasStackedSeries,
hasDirtyStacks,
isDirtyBox = chart.isDirtyBox, // todo: check if it has actually changed?
seriesLength = series.length,
i = seriesLength,
serie,
renderer = chart.renderer,
isHiddenChart = renderer.isHidden(),
afterRedraw = [];
setAnimation(animation, chart);
if (isHiddenChart) {
chart.cloneRenderTo();
}
// Adjust title layout (reflow multiline text)
chart.layOutTitles();
// link stacked series
while (i--) {
serie = series[i];
if (serie.options.stacking) {
hasStackedSeries = true;
if (serie.isDirty) {
hasDirtyStacks = true;
break;
}
}
}
if (hasDirtyStacks) { // mark others as dirty
i = seriesLength;
while (i--) {
serie = series[i];
if (serie.options.stacking) {
serie.isDirty = true;
}
}
}
// handle updated data in the series
each(series, function (serie) {
if (serie.isDirty) { // prepare the data so axis can read it
if (serie.options.legendType === 'point') {
redrawLegend = true;
}
}
});
// handle added or removed series
if (redrawLegend && legend.options.enabled) { // series or pie points are added or removed
// draw legend graphics
legend.render();
chart.isDirtyLegend = false;
}
// reset stacks
if (hasStackedSeries) {
chart.getStacks();
}
if (chart.hasCartesianSeries) {
if (!chart.isResizing) {
// reset maxTicks
chart.maxTicks = null;
// set axes scales
each(axes, function (axis) {
axis.setScale();
});
}
chart.adjustTickAmounts();
chart.getMargins();
// If one axis is dirty, all axes must be redrawn (#792, #2169)
each(axes, function (axis) {
if (axis.isDirty) {
isDirtyBox = true;
}
});
// redraw axes
each(axes, function (axis) {
// Fire 'afterSetExtremes' only if extremes are set
if (axis.isDirtyExtremes) { // #821
axis.isDirtyExtremes = false;
afterRedraw.push(function () { // prevent a recursive call to chart.redraw() (#1119)
fireEvent(axis, 'afterSetExtremes', extend(axis.eventArgs, axis.getExtremes())); // #747, #751
delete axis.eventArgs;
});
}
if (isDirtyBox || hasStackedSeries) {
axis.redraw();
}
});
}
// the plot areas size has changed
if (isDirtyBox) {
chart.drawChartBox();
}
// redraw affected series
each(series, function (serie) {
if (serie.isDirty && serie.visible &&
(!serie.isCartesian || serie.xAxis)) { // issue #153
serie.redraw();
}
});
// move tooltip or reset
if (pointer && pointer.reset) {
pointer.reset(true);
}
// redraw if canvas
renderer.draw();
// fire the event
fireEvent(chart, 'redraw'); // jQuery breaks this when calling it from addEvent. Overwrites chart.redraw
if (isHiddenChart) {
chart.cloneRenderTo(true);
}
// Fire callbacks that are put on hold until after the redraw
each(afterRedraw, function (callback) {
callback.call();
});
},
/**
* Dim the chart and show a loading text or symbol
* @param {String} str An optional text to show in the loading label instead of the default one
*/
showLoading: function (str) {
var chart = this,
options = chart.options,
loadingDiv = chart.loadingDiv;
var loadingOptions = options.loading;
// create the layer at the first call
if (!loadingDiv) {
chart.loadingDiv = loadingDiv = createElement(DIV, {
className: PREFIX + 'loading'
}, extend(loadingOptions.style, {
zIndex: 10,
display: NONE
}), chart.container);
chart.loadingSpan = createElement(
'span',
null,
loadingOptions.labelStyle,
loadingDiv
);
}
// update text
chart.loadingSpan.innerHTML = str || options.lang.loading;
// show it
if (!chart.loadingShown) {
css(loadingDiv, {
opacity: 0,
display: '',
left: chart.plotLeft + PX,
top: chart.plotTop + PX,
width: chart.plotWidth + PX,
height: chart.plotHeight + PX
});
animate(loadingDiv, {
opacity: loadingOptions.style.opacity
}, {
duration: loadingOptions.showDuration || 0
});
chart.loadingShown = true;
}
},
/**
* Hide the loading layer
*/
hideLoading: function () {
var options = this.options,
loadingDiv = this.loadingDiv;
if (loadingDiv) {
animate(loadingDiv, {
opacity: 0
}, {
duration: options.loading.hideDuration || 100,
complete: function () {
css(loadingDiv, { display: NONE });
}
});
}
this.loadingShown = false;
},
/**
* Get an axis, series or point object by id.
* @param id {String} The id as given in the configuration options
*/
get: function (id) {
var chart = this,
axes = chart.axes,
series = chart.series;
var i,
j,
points;
// search axes
for (i = 0; i < axes.length; i++) {
if (axes[i].options.id === id) {
return axes[i];
}
}
// search series
for (i = 0; i < series.length; i++) {
if (series[i].options.id === id) {
return series[i];
}
}
// search points
for (i = 0; i < series.length; i++) {
points = series[i].points || [];
for (j = 0; j < points.length; j++) {
if (points[j].id === id) {
return points[j];
}
}
}
return null;
},
/**
* Create the Axis instances based on the config options
*/
getAxes: function () {
var chart = this,
options = this.options,
xAxisOptions = options.xAxis = splat(options.xAxis || {}),
yAxisOptions = options.yAxis = splat(options.yAxis || {}),
optionsArray,
axis;
// make sure the options are arrays and add some members
each(xAxisOptions, function (axis, i) {
axis.index = i;
axis.isX = true;
});
each(yAxisOptions, function (axis, i) {
axis.index = i;
});
// concatenate all axis options into one array
optionsArray = xAxisOptions.concat(yAxisOptions);
each(optionsArray, function (axisOptions) {
axis = new Axis(chart, axisOptions);
});
chart.adjustTickAmounts();
},
/**
* Get the currently selected points from all series
*/
getSelectedPoints: function () {
var points = [];
each(this.series, function (serie) {
points = points.concat(grep(serie.points || [], function (point) {
return point.selected;
}));
});
return points;
},
/**
* Get the currently selected series
*/
getSelectedSeries: function () {
return grep(this.series, function (serie) {
return serie.selected;
});
},
/**
* Generate stacks for each series and calculate stacks total values
*/
getStacks: function () {
var chart = this;
// reset stacks for each yAxis
each(chart.yAxis, function (axis) {
if (axis.stacks && axis.hasVisibleSeries) {
axis.oldStacks = axis.stacks;
}
});
each(chart.series, function (series) {
if (series.options.stacking && (series.visible === true || chart.options.chart.ignoreHiddenSeries === false)) {
series.stackKey = series.type + pick(series.options.stack, '');
}
});
},
/**
* Display the zoom button
*/
showResetZoom: function () {
var chart = this,
lang = defaultOptions.lang,
btnOptions = chart.options.chart.resetZoomButton,
theme = btnOptions.theme,
states = theme.states,
alignTo = btnOptions.relativeTo === 'chart' ? null : 'plotBox';
this.resetZoomButton = chart.renderer.button(lang.resetZoom, null, null, function () { chart.zoomOut(); }, theme, states && states.hover)
.attr({
align: btnOptions.position.align,
title: lang.resetZoomTitle
})
.add()
.align(btnOptions.position, false, alignTo);
},
/**
* Zoom out to 1:1
*/
zoomOut: function () {
var chart = this;
fireEvent(chart, 'selection', { resetSelection: true }, function () {
chart.zoom();
});
},
/**
* Zoom into a given portion of the chart given by axis coordinates
* @param {Object} event
*/
zoom: function (event) {
var chart = this,
hasZoomed,
pointer = chart.pointer,
displayButton = false,
resetZoomButton;
// If zoom is called with no arguments, reset the axes
if (!event || event.resetSelection) {
each(chart.axes, function (axis) {
hasZoomed = axis.zoom();
});
} else { // else, zoom in on all axes
each(event.xAxis.concat(event.yAxis), function (axisData) {
var axis = axisData.axis,
isXAxis = axis.isXAxis;
// don't zoom more than minRange
if (pointer[isXAxis ? 'zoomX' : 'zoomY'] || pointer[isXAxis ? 'pinchX' : 'pinchY']) {
hasZoomed = axis.zoom(axisData.min, axisData.max);
if (axis.displayBtn) {
displayButton = true;
}
}
});
}
// Show or hide the Reset zoom button
resetZoomButton = chart.resetZoomButton;
if (displayButton && !resetZoomButton) {
chart.showResetZoom();
} else if (!displayButton && isObject(resetZoomButton)) {
chart.resetZoomButton = resetZoomButton.destroy();
}
// Redraw
if (hasZoomed) {
chart.redraw(
pick(chart.options.chart.animation, event && event.animation, chart.pointCount < 100) // animation
);
}
},
/**
* Pan the chart by dragging the mouse across the pane. This function is called
* on mouse move, and the distance to pan is computed from chartX compared to
* the first chartX position in the dragging operation.
*/
pan: function (e, panning) {
var chart = this,
hoverPoints = chart.hoverPoints,
doRedraw;
// remove active points for shared tooltip
if (hoverPoints) {
each(hoverPoints, function (point) {
point.setState();
});
}
each(panning === 'xy' ? [1, 0] : [1], function (isX) { // xy is used in maps
var mousePos = e[isX ? 'chartX' : 'chartY'],
axis = chart[isX ? 'xAxis' : 'yAxis'][0],
startPos = chart[isX ? 'mouseDownX' : 'mouseDownY'],
halfPointRange = (axis.pointRange || 0) / 2,
extremes = axis.getExtremes(),
newMin = axis.toValue(startPos - mousePos, true) + halfPointRange,
newMax = axis.toValue(startPos + chart[isX ? 'plotWidth' : 'plotHeight'] - mousePos, true) - halfPointRange;
if (axis.series.length && newMin > mathMin(extremes.dataMin, extremes.min) && newMax < mathMax(extremes.dataMax, extremes.max)) {
axis.setExtremes(newMin, newMax, false, false, { trigger: 'pan' });
doRedraw = true;
}
chart[isX ? 'mouseDownX' : 'mouseDownY'] = mousePos; // set new reference for next run
});
if (doRedraw) {
chart.redraw(false);
}
css(chart.container, { cursor: 'move' });
},
/**
* Show the title and subtitle of the chart
*
* @param titleOptions {Object} New title options
* @param subtitleOptions {Object} New subtitle options
*
*/
setTitle: function (titleOptions, subtitleOptions) {
var chart = this,
options = chart.options,
chartTitleOptions,
chartSubtitleOptions;
chartTitleOptions = options.title = merge(options.title, titleOptions);
chartSubtitleOptions = options.subtitle = merge(options.subtitle, subtitleOptions);
// add title and subtitle
each([
['title', titleOptions, chartTitleOptions],
['subtitle', subtitleOptions, chartSubtitleOptions]
], function (arr) {
var name = arr[0],
title = chart[name],
titleOptions = arr[1],
chartTitleOptions = arr[2];
if (title && titleOptions) {
chart[name] = title = title.destroy(); // remove old
}
if (chartTitleOptions && chartTitleOptions.text && !title) {
chart[name] = chart.renderer.text(
chartTitleOptions.text,
0,
0,
chartTitleOptions.useHTML
)
.attr({
align: chartTitleOptions.align,
'class': PREFIX + name,
zIndex: chartTitleOptions.zIndex || 4
})
.css(chartTitleOptions.style)
.add();
}
});
chart.layOutTitles();
},
/**
* Lay out the chart titles and cache the full offset height for use in getMargins
*/
layOutTitles: function () {
var titleOffset = 0,
title = this.title,
subtitle = this.subtitle,
options = this.options,
titleOptions = options.title,
subtitleOptions = options.subtitle,
autoWidth = this.spacingBox.width - 44; // 44 makes room for default context button
if (title) {
title
.css({ width: (titleOptions.width || autoWidth) + PX })
.align(extend({ y: 15 }, titleOptions), false, 'spacingBox');
if (!titleOptions.floating && !titleOptions.verticalAlign) {
titleOffset = title.getBBox().height;
// Adjust for browser consistency + backwards compat after #776 fix
if (titleOffset >= 18 && titleOffset <= 25) {
titleOffset = 15;
}
}
}
if (subtitle) {
subtitle
.css({ width: (subtitleOptions.width || autoWidth) + PX })
.align(extend({ y: titleOffset + titleOptions.margin }, subtitleOptions), false, 'spacingBox');
if (!subtitleOptions.floating && !subtitleOptions.verticalAlign) {
titleOffset = mathCeil(titleOffset + subtitle.getBBox().height);
}
}
this.titleOffset = titleOffset; // used in getMargins
},
/**
* Get chart width and height according to options and container size
*/
getChartSize: function () {
var chart = this,
optionsChart = chart.options.chart,
renderTo = chart.renderToClone || chart.renderTo;
// get inner width and height from jQuery (#824)
chart.containerWidth = adapterRun(renderTo, 'width');
chart.containerHeight = adapterRun(renderTo, 'height');
chart.chartWidth = mathMax(0, optionsChart.width || chart.containerWidth || 600); // #1393, 1460
chart.chartHeight = mathMax(0, pick(optionsChart.height,
// the offsetHeight of an empty container is 0 in standard browsers, but 19 in IE7:
chart.containerHeight > 19 ? chart.containerHeight : 400));
},
/**
* Create a clone of the chart's renderTo div and place it outside the viewport to allow
* size computation on chart.render and chart.redraw
*/
cloneRenderTo: function (revert) {
var clone = this.renderToClone,
container = this.container;
// Destroy the clone and bring the container back to the real renderTo div
if (revert) {
if (clone) {
this.renderTo.appendChild(container);
discardElement(clone);
delete this.renderToClone;
}
// Set up the clone
} else {
if (container && container.parentNode === this.renderTo) {
this.renderTo.removeChild(container); // do not clone this
}
this.renderToClone = clone = this.renderTo.cloneNode(0);
css(clone, {
position: ABSOLUTE,
top: '-9999px',
display: 'block' // #833
});
doc.body.appendChild(clone);
if (container) {
clone.appendChild(container);
}
}
},
/**
* Get the containing element, determine the size and create the inner container
* div to hold the chart
*/
getContainer: function () {
var chart = this,
container,
optionsChart = chart.options.chart,
chartWidth,
chartHeight,
renderTo,
indexAttrName = 'data-highcharts-chart',
oldChartIndex,
containerId;
chart.renderTo = renderTo = optionsChart.renderTo;
containerId = PREFIX + idCounter++;
if (isString(renderTo)) {
chart.renderTo = renderTo = doc.getElementById(renderTo);
}
// Display an error if the renderTo is wrong
if (!renderTo) {
error(13, true);
}
// If the container already holds a chart, destroy it
oldChartIndex = pInt(attr(renderTo, indexAttrName));
if (!isNaN(oldChartIndex) && charts[oldChartIndex]) {
charts[oldChartIndex].destroy();
}
// Make a reference to the chart from the div
attr(renderTo, indexAttrName, chart.index);
// remove previous chart
renderTo.innerHTML = '';
// If the container doesn't have an offsetWidth, it has or is a child of a node
// that has display:none. We need to temporarily move it out to a visible
// state to determine the size, else the legend and tooltips won't render
// properly
if (!renderTo.offsetWidth) {
chart.cloneRenderTo();
}
// get the width and height
chart.getChartSize();
chartWidth = chart.chartWidth;
chartHeight = chart.chartHeight;
// create the inner container
chart.container = container = createElement(DIV, {
className: PREFIX + 'container' +
(optionsChart.className ? ' ' + optionsChart.className : ''),
id: containerId
}, extend({
position: RELATIVE,
overflow: HIDDEN, // needed for context menu (avoid scrollbars) and
// content overflow in IE
width: chartWidth + PX,
height: chartHeight + PX,
textAlign: 'left',
lineHeight: 'normal', // #427
zIndex: 0, // #1072
'-webkit-tap-highlight-color': 'rgba(0,0,0,0)'
}, optionsChart.style),
chart.renderToClone || renderTo
);
// cache the cursor (#1650)
chart._cursor = container.style.cursor;
chart.renderer =
optionsChart.forExport ? // force SVG, used for SVG export
new SVGRenderer(container, chartWidth, chartHeight, true) :
new Renderer(container, chartWidth, chartHeight);
if (useCanVG) {
// If we need canvg library, extend and configure the renderer
// to get the tracker for translating mouse events
chart.renderer.create(chart, container, chartWidth, chartHeight);
}
},
/**
* Calculate margins by rendering axis labels in a preliminary position. Title,
* subtitle and legend have already been rendered at this stage, but will be
* moved into their final positions
*/
getMargins: function () {
var chart = this,
spacing = chart.spacing,
axisOffset,
legend = chart.legend,
margin = chart.margin,
legendOptions = chart.options.legend,
legendMargin = pick(legendOptions.margin, 10),
legendX = legendOptions.x,
legendY = legendOptions.y,
align = legendOptions.align,
verticalAlign = legendOptions.verticalAlign,
titleOffset = chart.titleOffset;
chart.resetMargins();
axisOffset = chart.axisOffset;
// Adjust for title and subtitle
if (titleOffset && !defined(margin[0])) {
chart.plotTop = mathMax(chart.plotTop, titleOffset + chart.options.title.margin + spacing[0]);
}
// Adjust for legend
if (legend.display && !legendOptions.floating) {
if (align === 'right') { // horizontal alignment handled first
if (!defined(margin[1])) {
chart.marginRight = mathMax(
chart.marginRight,
legend.legendWidth - legendX + legendMargin + spacing[1]
);
}
} else if (align === 'left') {
if (!defined(margin[3])) {
chart.plotLeft = mathMax(
chart.plotLeft,
legend.legendWidth + legendX + legendMargin + spacing[3]
);
}
} else if (verticalAlign === 'top') {
if (!defined(margin[0])) {
chart.plotTop = mathMax(
chart.plotTop,
legend.legendHeight + legendY + legendMargin + spacing[0]
);
}
} else if (verticalAlign === 'bottom') {
if (!defined(margin[2])) {
chart.marginBottom = mathMax(
chart.marginBottom,
legend.legendHeight - legendY + legendMargin + spacing[2]
);
}
}
}
// adjust for scroller
if (chart.extraBottomMargin) {
chart.marginBottom += chart.extraBottomMargin;
}
if (chart.extraTopMargin) {
chart.plotTop += chart.extraTopMargin;
}
// pre-render axes to get labels offset width
if (chart.hasCartesianSeries) {
each(chart.axes, function (axis) {
axis.getOffset();
});
}
if (!defined(margin[3])) {
chart.plotLeft += axisOffset[3];
}
if (!defined(margin[0])) {
chart.plotTop += axisOffset[0];
}
if (!defined(margin[2])) {
chart.marginBottom += axisOffset[2];
}
if (!defined(margin[1])) {
chart.marginRight += axisOffset[1];
}
chart.setChartSize();
},
/**
* Add the event handlers necessary for auto resizing
*
*/
initReflow: function () {
var chart = this,
optionsChart = chart.options.chart,
renderTo = chart.renderTo,
reflowTimeout;
function reflow(e) {
var width = optionsChart.width || adapterRun(renderTo, 'width'),
height = optionsChart.height || adapterRun(renderTo, 'height'),
target = e ? e.target : win; // #805 - MooTools doesn't supply e
// Width and height checks for display:none. Target is doc in IE8 and Opera,
// win in Firefox, Chrome and IE9.
if (!chart.hasUserSize && width && height && (target === win || target === doc)) {
if (width !== chart.containerWidth || height !== chart.containerHeight) {
clearTimeout(reflowTimeout);
chart.reflowTimeout = reflowTimeout = setTimeout(function () {
if (chart.container) { // It may have been destroyed in the meantime (#1257)
chart.setSize(width, height, false);
chart.hasUserSize = null;
}
}, 100);
}
chart.containerWidth = width;
chart.containerHeight = height;
}
}
chart.reflow = reflow;
addEvent(win, 'resize', reflow);
addEvent(chart, 'destroy', function () {
removeEvent(win, 'resize', reflow);
});
},
/**
* Resize the chart to a given width and height
* @param {Number} width
* @param {Number} height
* @param {Object|Boolean} animation
*/
setSize: function (width, height, animation) {
var chart = this,
chartWidth,
chartHeight,
fireEndResize;
// Handle the isResizing counter
chart.isResizing += 1;
fireEndResize = function () {
if (chart) {
fireEvent(chart, 'endResize', null, function () {
chart.isResizing -= 1;
});
}
};
// set the animation for the current process
setAnimation(animation, chart);
chart.oldChartHeight = chart.chartHeight;
chart.oldChartWidth = chart.chartWidth;
if (defined(width)) {
chart.chartWidth = chartWidth = mathMax(0, mathRound(width));
chart.hasUserSize = !!chartWidth;
}
if (defined(height)) {
chart.chartHeight = chartHeight = mathMax(0, mathRound(height));
}
css(chart.container, {
width: chartWidth + PX,
height: chartHeight + PX
});
chart.setChartSize(true);
chart.renderer.setSize(chartWidth, chartHeight, animation);
// handle axes
chart.maxTicks = null;
each(chart.axes, function (axis) {
axis.isDirty = true;
axis.setScale();
});
// make sure non-cartesian series are also handled
each(chart.series, function (serie) {
serie.isDirty = true;
});
chart.isDirtyLegend = true; // force legend redraw
chart.isDirtyBox = true; // force redraw of plot and chart border
chart.getMargins();
chart.redraw(animation);
chart.oldChartHeight = null;
fireEvent(chart, 'resize');
// fire endResize and set isResizing back
// If animation is disabled, fire without delay
if (globalAnimation === false) {
fireEndResize();
} else { // else set a timeout with the animation duration
setTimeout(fireEndResize, (globalAnimation && globalAnimation.duration) || 500);
}
},
/**
* Set the public chart properties. This is done before and after the pre-render
* to determine margin sizes
*/
setChartSize: function (skipAxes) {
var chart = this,
inverted = chart.inverted,
renderer = chart.renderer,
chartWidth = chart.chartWidth,
chartHeight = chart.chartHeight,
optionsChart = chart.options.chart,
spacing = chart.spacing,
clipOffset = chart.clipOffset,
clipX,
clipY,
plotLeft,
plotTop,
plotWidth,
plotHeight,
plotBorderWidth;
chart.plotLeft = plotLeft = mathRound(chart.plotLeft);
chart.plotTop = plotTop = mathRound(chart.plotTop);
chart.plotWidth = plotWidth = mathMax(0, mathRound(chartWidth - plotLeft - chart.marginRight));
chart.plotHeight = plotHeight = mathMax(0, mathRound(chartHeight - plotTop - chart.marginBottom));
chart.plotSizeX = inverted ? plotHeight : plotWidth;
chart.plotSizeY = inverted ? plotWidth : plotHeight;
chart.plotBorderWidth = optionsChart.plotBorderWidth || 0;
// Set boxes used for alignment
chart.spacingBox = renderer.spacingBox = {
x: spacing[3],
y: spacing[0],
width: chartWidth - spacing[3] - spacing[1],
height: chartHeight - spacing[0] - spacing[2]
};
chart.plotBox = renderer.plotBox = {
x: plotLeft,
y: plotTop,
width: plotWidth,
height: plotHeight
};
plotBorderWidth = 2 * mathFloor(chart.plotBorderWidth / 2);
clipX = mathCeil(mathMax(plotBorderWidth, clipOffset[3]) / 2);
clipY = mathCeil(mathMax(plotBorderWidth, clipOffset[0]) / 2);
chart.clipBox = {
x: clipX,
y: clipY,
width: mathFloor(chart.plotSizeX - mathMax(plotBorderWidth, clipOffset[1]) / 2 - clipX),
height: mathFloor(chart.plotSizeY - mathMax(plotBorderWidth, clipOffset[2]) / 2 - clipY)
};
if (!skipAxes) {
each(chart.axes, function (axis) {
axis.setAxisSize();
axis.setAxisTranslation();
});
}
},
/**
* Initial margins before auto size margins are applied
*/
resetMargins: function () {
var chart = this,
spacing = chart.spacing,
margin = chart.margin;
chart.plotTop = pick(margin[0], spacing[0]);
chart.marginRight = pick(margin[1], spacing[1]);
chart.marginBottom = pick(margin[2], spacing[2]);
chart.plotLeft = pick(margin[3], spacing[3]);
chart.axisOffset = [0, 0, 0, 0]; // top, right, bottom, left
chart.clipOffset = [0, 0, 0, 0];
},
/**
* Draw the borders and backgrounds for chart and plot area
*/
drawChartBox: function () {
var chart = this,
optionsChart = chart.options.chart,
renderer = chart.renderer,
chartWidth = chart.chartWidth,
chartHeight = chart.chartHeight,
chartBackground = chart.chartBackground,
plotBackground = chart.plotBackground,
plotBorder = chart.plotBorder,
plotBGImage = chart.plotBGImage,
chartBorderWidth = optionsChart.borderWidth || 0,
chartBackgroundColor = optionsChart.backgroundColor,
plotBackgroundColor = optionsChart.plotBackgroundColor,
plotBackgroundImage = optionsChart.plotBackgroundImage,
plotBorderWidth = optionsChart.plotBorderWidth || 0,
mgn,
bgAttr,
plotLeft = chart.plotLeft,
plotTop = chart.plotTop,
plotWidth = chart.plotWidth,
plotHeight = chart.plotHeight,
plotBox = chart.plotBox,
clipRect = chart.clipRect,
clipBox = chart.clipBox;
// Chart area
mgn = chartBorderWidth + (optionsChart.shadow ? 8 : 0);
if (chartBorderWidth || chartBackgroundColor) {
if (!chartBackground) {
bgAttr = {
fill: chartBackgroundColor || NONE
};
if (chartBorderWidth) { // #980
bgAttr.stroke = optionsChart.borderColor;
bgAttr['stroke-width'] = chartBorderWidth;
}
chart.chartBackground = renderer.rect(mgn / 2, mgn / 2, chartWidth - mgn, chartHeight - mgn,
optionsChart.borderRadius, chartBorderWidth)
.attr(bgAttr)
.add()
.shadow(optionsChart.shadow);
} else { // resize
chartBackground.animate(
chartBackground.crisp(null, null, null, chartWidth - mgn, chartHeight - mgn)
);
}
}
// Plot background
if (plotBackgroundColor) {
if (!plotBackground) {
chart.plotBackground = renderer.rect(plotLeft, plotTop, plotWidth, plotHeight, 0)
.attr({
fill: plotBackgroundColor
})
.add()
.shadow(optionsChart.plotShadow);
} else {
plotBackground.animate(plotBox);
}
}
if (plotBackgroundImage) {
if (!plotBGImage) {
chart.plotBGImage = renderer.image(plotBackgroundImage, plotLeft, plotTop, plotWidth, plotHeight)
.add();
} else {
plotBGImage.animate(plotBox);
}
}
// Plot clip
if (!clipRect) {
chart.clipRect = renderer.clipRect(clipBox);
} else {
clipRect.animate({
width: clipBox.width,
height: clipBox.height
});
}
// Plot area border
if (plotBorderWidth) {
if (!plotBorder) {
chart.plotBorder = renderer.rect(plotLeft, plotTop, plotWidth, plotHeight, 0, -plotBorderWidth)
.attr({
stroke: optionsChart.plotBorderColor,
'stroke-width': plotBorderWidth,
zIndex: 1
})
.add();
} else {
plotBorder.animate(
plotBorder.crisp(null, plotLeft, plotTop, plotWidth, plotHeight)
);
}
}
// reset
chart.isDirtyBox = false;
},
/**
* Detect whether a certain chart property is needed based on inspecting its options
* and series. This mainly applies to the chart.invert property, and in extensions to
* the chart.angular and chart.polar properties.
*/
propFromSeries: function () {
var chart = this,
optionsChart = chart.options.chart,
klass,
seriesOptions = chart.options.series,
i,
value;
each(['inverted', 'angular', 'polar'], function (key) {
// The default series type's class
klass = seriesTypes[optionsChart.type || optionsChart.defaultSeriesType];
// Get the value from available chart-wide properties
value = (
chart[key] || // 1. it is set before
optionsChart[key] || // 2. it is set in the options
(klass && klass.prototype[key]) // 3. it's default series class requires it
);
// 4. Check if any the chart's series require it
i = seriesOptions && seriesOptions.length;
while (!value && i--) {
klass = seriesTypes[seriesOptions[i].type];
if (klass && klass.prototype[key]) {
value = true;
}
}
// Set the chart property
chart[key] = value;
});
},
/**
* Link two or more series together. This is done initially from Chart.render,
* and after Chart.addSeries and Series.remove.
*/
linkSeries: function () {
var chart = this,
chartSeries = chart.series;
// Reset links
each(chartSeries, function (series) {
series.linkedSeries.length = 0;
});
// Apply new links
each(chartSeries, function (series) {
var linkedTo = series.options.linkedTo;
if (isString(linkedTo)) {
if (linkedTo === ':previous') {
linkedTo = chart.series[series.index - 1];
} else {
linkedTo = chart.get(linkedTo);
}
if (linkedTo) {
linkedTo.linkedSeries.push(series);
series.linkedParent = linkedTo;
}
}
});
},
/**
* Render all graphics for the chart
*/
render: function () {
var chart = this,
axes = chart.axes,
renderer = chart.renderer,
options = chart.options;
var labels = options.labels,
credits = options.credits,
creditsHref;
// Title
chart.setTitle();
// Legend
chart.legend = new Legend(chart, options.legend);
chart.getStacks(); // render stacks
// Get margins by pre-rendering axes
// set axes scales
each(axes, function (axis) {
axis.setScale();
});
chart.getMargins();
chart.maxTicks = null; // reset for second pass
each(axes, function (axis) {
axis.setTickPositions(true); // update to reflect the new margins
axis.setMaxTicks();
});
chart.adjustTickAmounts();
chart.getMargins(); // second pass to check for new labels
// Draw the borders and backgrounds
chart.drawChartBox();
// Axes
if (chart.hasCartesianSeries) {
each(axes, function (axis) {
axis.render();
});
}
// The series
if (!chart.seriesGroup) {
chart.seriesGroup = renderer.g('series-group')
.attr({ zIndex: 3 })
.add();
}
each(chart.series, function (serie) {
serie.translate();
serie.setTooltipPoints();
serie.render();
});
// Labels
if (labels.items) {
each(labels.items, function (label) {
var style = extend(labels.style, label.style),
x = pInt(style.left) + chart.plotLeft,
y = pInt(style.top) + chart.plotTop + 12;
// delete to prevent rewriting in IE
delete style.left;
delete style.top;
renderer.text(
label.html,
x,
y
)
.attr({ zIndex: 2 })
.css(style)
.add();
});
}
// Credits
if (credits.enabled && !chart.credits) {
creditsHref = credits.href;
chart.credits = renderer.text(
credits.text,
0,
0
)
.on('click', function () {
if (creditsHref) {
location.href = creditsHref;
}
})
.attr({
align: credits.position.align,
zIndex: 8
})
.css(credits.style)
.add()
.align(credits.position);
}
// Set flag
chart.hasRendered = true;
},
/**
* Clean up memory usage
*/
destroy: function () {
var chart = this,
axes = chart.axes,
series = chart.series,
container = chart.container,
i,
parentNode = container && container.parentNode;
// fire the chart.destoy event
fireEvent(chart, 'destroy');
// Delete the chart from charts lookup array
charts[chart.index] = UNDEFINED;
chart.renderTo.removeAttribute('data-highcharts-chart');
// remove events
removeEvent(chart);
// ==== Destroy collections:
// Destroy axes
i = axes.length;
while (i--) {
axes[i] = axes[i].destroy();
}
// Destroy each series
i = series.length;
while (i--) {
series[i] = series[i].destroy();
}
// ==== Destroy chart properties:
each(['title', 'subtitle', 'chartBackground', 'plotBackground', 'plotBGImage',
'plotBorder', 'seriesGroup', 'clipRect', 'credits', 'pointer', 'scroller',
'rangeSelector', 'legend', 'resetZoomButton', 'tooltip', 'renderer'], function (name) {
var prop = chart[name];
if (prop && prop.destroy) {
chart[name] = prop.destroy();
}
});
// remove container and all SVG
if (container) { // can break in IE when destroyed before finished loading
container.innerHTML = '';
removeEvent(container);
if (parentNode) {
discardElement(container);
}
}
// clean it all up
for (i in chart) {
delete chart[i];
}
},
/**
* VML namespaces can't be added until after complete. Listening
* for Perini's doScroll hack is not enough.
*/
isReadyToRender: function () {
var chart = this;
// Note: in spite of JSLint's complaints, win == win.top is required
/*jslint eqeq: true*/
if ((!hasSVG && (win == win.top && doc.readyState !== 'complete')) || (useCanVG && !win.canvg)) {
/*jslint eqeq: false*/
if (useCanVG) {
// Delay rendering until canvg library is downloaded and ready
CanVGController.push(function () { chart.firstRender(); }, chart.options.global.canvasToolsURL);
} else {
doc.attachEvent('onreadystatechange', function () {
doc.detachEvent('onreadystatechange', chart.firstRender);
if (doc.readyState === 'complete') {
chart.firstRender();
}
});
}
return false;
}
return true;
},
/**
* Prepare for first rendering after all data are loaded
*/
firstRender: function () {
var chart = this,
options = chart.options,
callback = chart.callback;
// Check whether the chart is ready to render
if (!chart.isReadyToRender()) {
return;
}
// Create the container
chart.getContainer();
// Run an early event after the container and renderer are established
fireEvent(chart, 'init');
chart.resetMargins();
chart.setChartSize();
// Set the common chart properties (mainly invert) from the given series
chart.propFromSeries();
// get axes
chart.getAxes();
// Initialize the series
each(options.series || [], function (serieOptions) {
chart.initSeries(serieOptions);
});
chart.linkSeries();
// Run an event after axes and series are initialized, but before render. At this stage,
// the series data is indexed and cached in the xData and yData arrays, so we can access
// those before rendering. Used in Highstock.
fireEvent(chart, 'beforeRender');
// depends on inverted and on margins being set
chart.pointer = new Pointer(chart, options);
chart.render();
// add canvas
chart.renderer.draw();
// run callbacks
if (callback) {
callback.apply(chart, [chart]);
}
each(chart.callbacks, function (fn) {
fn.apply(chart, [chart]);
});
// If the chart was rendered outside the top container, put it back in
chart.cloneRenderTo(true);
fireEvent(chart, 'load');
},
/**
* Creates arrays for spacing and margin from given options.
*/
splashArray: function (target, options) {
var oVar = options[target],
tArray = isObject(oVar) ? oVar : [oVar, oVar, oVar, oVar];
return [pick(options[target + 'Top'], tArray[0]),
pick(options[target + 'Right'], tArray[1]),
pick(options[target + 'Bottom'], tArray[2]),
pick(options[target + 'Left'], tArray[3])];
}
}; // end Chart
// Hook for exporting module
Chart.prototype.callbacks = [];
/**
* The Point object and prototype. Inheritable and used as base for PiePoint
*/
var Point = function () {};
Point.prototype = {
/**
* Initialize the point
* @param {Object} series The series object containing this point
* @param {Object} options The data in either number, array or object format
*/
init: function (series, options, x) {
var point = this,
colors;
point.series = series;
point.applyOptions(options, x);
point.pointAttr = {};
if (series.options.colorByPoint) {
colors = series.options.colors || series.chart.options.colors;
point.color = point.color || colors[series.colorCounter++];
// loop back to zero
if (series.colorCounter === colors.length) {
series.colorCounter = 0;
}
}
series.chart.pointCount++;
return point;
},
/**
* Apply the options containing the x and y data and possible some extra properties.
* This is called on point init or from point.update.
*
* @param {Object} options
*/
applyOptions: function (options, x) {
var point = this,
series = point.series,
pointValKey = series.pointValKey;
options = Point.prototype.optionsToObject.call(this, options);
// copy options directly to point
extend(point, options);
point.options = point.options ? extend(point.options, options) : options;
// For higher dimension series types. For instance, for ranges, point.y is mapped to point.low.
if (pointValKey) {
point.y = point[pointValKey];
}
// If no x is set by now, get auto incremented value. All points must have an
// x value, however the y value can be null to create a gap in the series
if (point.x === UNDEFINED && series) {
point.x = x === UNDEFINED ? series.autoIncrement() : x;
}
return point;
},
/**
* Transform number or array configs into objects
*/
optionsToObject: function (options) {
var ret,
series = this.series,
pointArrayMap = series.pointArrayMap || ['y'],
valueCount = pointArrayMap.length,
firstItemType,
i = 0,
j = 0;
if (typeof options === 'number' || options === null) {
ret = { y: options };
} else if (isArray(options)) {
ret = {};
// with leading x value
if (options.length > valueCount) {
firstItemType = typeof options[0];
if (firstItemType === 'string') {
ret.name = options[0];
} else if (firstItemType === 'number') {
ret.x = options[0];
}
i++;
}
while (j < valueCount) {
ret[pointArrayMap[j++]] = options[i++];
}
} else if (typeof options === 'object') {
ret = options;
// This is the fastest way to detect if there are individual point dataLabels that need
// to be considered in drawDataLabels. These can only occur in object configs.
if (options.dataLabels) {
series._hasPointLabels = true;
}
// Same approach as above for markers
if (options.marker) {
series._hasPointMarkers = true;
}
}
return ret;
},
/**
* Destroy a point to clear memory. Its reference still stays in series.data.
*/
destroy: function () {
var point = this,
series = point.series,
chart = series.chart,
hoverPoints = chart.hoverPoints,
prop;
chart.pointCount--;
if (hoverPoints) {
point.setState();
erase(hoverPoints, point);
if (!hoverPoints.length) {
chart.hoverPoints = null;
}
}
if (point === chart.hoverPoint) {
point.onMouseOut();
}
// remove all events
if (point.graphic || point.dataLabel) { // removeEvent and destroyElements are performance expensive
removeEvent(point);
point.destroyElements();
}
if (point.legendItem) { // pies have legend items
chart.legend.destroyItem(point);
}
for (prop in point) {
point[prop] = null;
}
},
/**
* Destroy SVG elements associated with the point
*/
destroyElements: function () {
var point = this,
props = ['graphic', 'dataLabel', 'dataLabelUpper', 'group', 'connector', 'shadowGroup'],
prop,
i = 6;
while (i--) {
prop = props[i];
if (point[prop]) {
point[prop] = point[prop].destroy();
}
}
},
/**
* Return the configuration hash needed for the data label and tooltip formatters
*/
getLabelConfig: function () {
var point = this;
return {
x: point.category,
y: point.y,
key: point.name || point.category,
series: point.series,
point: point,
percentage: point.percentage,
total: point.total || point.stackTotal
};
},
/**
* Toggle the selection status of a point
* @param {Boolean} selected Whether to select or unselect the point.
* @param {Boolean} accumulate Whether to add to the previous selection. By default,
* this happens if the control key (Cmd on Mac) was pressed during clicking.
*/
select: function (selected, accumulate) {
var point = this,
series = point.series,
chart = series.chart;
selected = pick(selected, !point.selected);
// fire the event with the defalut handler
point.firePointEvent(selected ? 'select' : 'unselect', { accumulate: accumulate }, function () {
point.selected = point.options.selected = selected;
series.options.data[inArray(point, series.data)] = point.options;
point.setState(selected && SELECT_STATE);
// unselect all other points unless Ctrl or Cmd + click
if (!accumulate) {
each(chart.getSelectedPoints(), function (loopPoint) {
if (loopPoint.selected && loopPoint !== point) {
loopPoint.selected = loopPoint.options.selected = false;
series.options.data[inArray(loopPoint, series.data)] = loopPoint.options;
loopPoint.setState(NORMAL_STATE);
loopPoint.firePointEvent('unselect');
}
});
}
});
},
/**
* Runs on mouse over the point
*/
onMouseOver: function (e) {
var point = this,
series = point.series,
chart = series.chart,
tooltip = chart.tooltip,
hoverPoint = chart.hoverPoint;
// set normal state to previous series
if (hoverPoint && hoverPoint !== point) {
hoverPoint.onMouseOut();
}
// trigger the event
point.firePointEvent('mouseOver');
// update the tooltip
if (tooltip && (!tooltip.shared || series.noSharedTooltip)) {
tooltip.refresh(point, e);
}
// hover this
point.setState(HOVER_STATE);
chart.hoverPoint = point;
},
/**
* Runs on mouse out from the point
*/
onMouseOut: function () {
var chart = this.series.chart,
hoverPoints = chart.hoverPoints;
if (!hoverPoints || inArray(this, hoverPoints) === -1) { // #887
this.firePointEvent('mouseOut');
this.setState();
chart.hoverPoint = null;
}
},
/**
* Extendable method for formatting each point's tooltip line
*
* @return {String} A string to be concatenated in to the common tooltip text
*/
tooltipFormatter: function (pointFormat) {
// Insert options for valueDecimals, valuePrefix, and valueSuffix
var series = this.series,
seriesTooltipOptions = series.tooltipOptions,
valueDecimals = pick(seriesTooltipOptions.valueDecimals, ''),
valuePrefix = seriesTooltipOptions.valuePrefix || '',
valueSuffix = seriesTooltipOptions.valueSuffix || '';
// Loop over the point array map and replace unformatted values with sprintf formatting markup
each(series.pointArrayMap || ['y'], function (key) {
key = '{point.' + key; // without the closing bracket
if (valuePrefix || valueSuffix) {
pointFormat = pointFormat.replace(key + '}', valuePrefix + key + '}' + valueSuffix);
}
pointFormat = pointFormat.replace(key + '}', key + ':,.' + valueDecimals + 'f}');
});
return format(pointFormat, {
point: this,
series: this.series
});
},
/**
* Update the point with new options (typically x/y data) and optionally redraw the series.
*
* @param {Object} options Point options as defined in the series.data array
* @param {Boolean} redraw Whether to redraw the chart or wait for an explicit call
* @param {Boolean|Object} animation Whether to apply animation, and optionally animation
* configuration
*
*/
update: function (options, redraw, animation) {
var point = this,
series = point.series,
graphic = point.graphic,
i,
data = series.data,
chart = series.chart,
seriesOptions = series.options;
redraw = pick(redraw, true);
// fire the event with a default handler of doing the update
point.firePointEvent('update', { options: options }, function () {
point.applyOptions(options);
// update visuals
if (isObject(options)) {
series.getAttribs();
if (graphic) {
if (options.marker && options.marker.symbol) {
point.graphic = graphic.destroy();
} else {
graphic.attr(point.pointAttr[point.state || '']);
}
}
}
// record changes in the parallel arrays
i = inArray(point, data);
series.xData[i] = point.x;
series.yData[i] = series.toYData ? series.toYData(point) : point.y;
series.zData[i] = point.z;
seriesOptions.data[i] = point.options;
// redraw
series.isDirty = series.isDirtyData = true;
if (!series.fixedBox && series.hasCartesianSeries) { // #1906, #2320
chart.isDirtyBox = true;
}
if (seriesOptions.legendType === 'point') { // #1831, #1885
chart.legend.destroyItem(point);
}
if (redraw) {
chart.redraw(animation);
}
});
},
/**
* Remove a point and optionally redraw the series and if necessary the axes
* @param {Boolean} redraw Whether to redraw the chart or wait for an explicit call
* @param {Boolean|Object} animation Whether to apply animation, and optionally animation
* configuration
*/
remove: function (redraw, animation) {
var point = this,
series = point.series,
points = series.points,
chart = series.chart,
i,
data = series.data;
setAnimation(animation, chart);
redraw = pick(redraw, true);
// fire the event with a default handler of removing the point
point.firePointEvent('remove', null, function () {
// splice all the parallel arrays
i = inArray(point, data);
if (data.length === points.length) {
points.splice(i, 1);
}
data.splice(i, 1);
series.options.data.splice(i, 1);
series.xData.splice(i, 1);
series.yData.splice(i, 1);
series.zData.splice(i, 1);
point.destroy();
// redraw
series.isDirty = true;
series.isDirtyData = true;
if (redraw) {
chart.redraw();
}
});
},
/**
* Fire an event on the Point object. Must not be renamed to fireEvent, as this
* causes a name clash in MooTools
* @param {String} eventType
* @param {Object} eventArgs Additional event arguments
* @param {Function} defaultFunction Default event handler
*/
firePointEvent: function (eventType, eventArgs, defaultFunction) {
var point = this,
series = this.series,
seriesOptions = series.options;
// load event handlers on demand to save time on mouseover/out
if (seriesOptions.point.events[eventType] || (point.options && point.options.events && point.options.events[eventType])) {
this.importEvents();
}
// add default handler if in selection mode
if (eventType === 'click' && seriesOptions.allowPointSelect) {
defaultFunction = function (event) {
// Control key is for Windows, meta (= Cmd key) for Mac, Shift for Opera
point.select(null, event.ctrlKey || event.metaKey || event.shiftKey);
};
}
fireEvent(this, eventType, eventArgs, defaultFunction);
},
/**
* Import events from the series' and point's options. Only do it on
* demand, to save processing time on hovering.
*/
importEvents: function () {
if (!this.hasImportedEvents) {
var point = this,
options = merge(point.series.options.point, point.options),
events = options.events,
eventType;
point.events = events;
for (eventType in events) {
addEvent(point, eventType, events[eventType]);
}
this.hasImportedEvents = true;
}
},
/**
* Set the point's state
* @param {String} state
*/
setState: function (state) {
var point = this,
plotX = point.plotX,
plotY = point.plotY,
series = point.series,
stateOptions = series.options.states,
markerOptions = defaultPlotOptions[series.type].marker && series.options.marker,
normalDisabled = markerOptions && !markerOptions.enabled,
markerStateOptions = markerOptions && markerOptions.states[state],
stateDisabled = markerStateOptions && markerStateOptions.enabled === false,
stateMarkerGraphic = series.stateMarkerGraphic,
pointMarker = point.marker || {},
chart = series.chart,
radius,
newSymbol,
pointAttr = point.pointAttr;
state = state || NORMAL_STATE; // empty string
if (
// already has this state
state === point.state ||
// selected points don't respond to hover
(point.selected && state !== SELECT_STATE) ||
// series' state options is disabled
(stateOptions[state] && stateOptions[state].enabled === false) ||
// point marker's state options is disabled
(state && (stateDisabled || (normalDisabled && !markerStateOptions.enabled)))
) {
return;
}
// apply hover styles to the existing point
if (point.graphic) {
radius = markerOptions && point.graphic.symbolName && pointAttr[state].r;
point.graphic.attr(merge(
pointAttr[state],
radius ? { // new symbol attributes (#507, #612)
x: plotX - radius,
y: plotY - radius,
width: 2 * radius,
height: 2 * radius
} : {}
));
} else {
// if a graphic is not applied to each point in the normal state, create a shared
// graphic for the hover state
if (state && markerStateOptions) {
radius = markerStateOptions.radius;
newSymbol = pointMarker.symbol || series.symbol;
// If the point has another symbol than the previous one, throw away the
// state marker graphic and force a new one (#1459)
if (stateMarkerGraphic && stateMarkerGraphic.currentSymbol !== newSymbol) {
stateMarkerGraphic = stateMarkerGraphic.destroy();
}
// Add a new state marker graphic
if (!stateMarkerGraphic) {
series.stateMarkerGraphic = stateMarkerGraphic = chart.renderer.symbol(
newSymbol,
plotX - radius,
plotY - radius,
2 * radius,
2 * radius
)
.attr(pointAttr[state])
.add(series.markerGroup);
stateMarkerGraphic.currentSymbol = newSymbol;
// Move the existing graphic
} else {
stateMarkerGraphic.attr({ // #1054
x: plotX - radius,
y: plotY - radius
});
}
}
if (stateMarkerGraphic) {
stateMarkerGraphic[state && chart.isInsidePlot(plotX, plotY) ? 'show' : 'hide']();
}
}
point.state = state;
}
};
/**
* @classDescription The base function which all other series types inherit from. The data in the series is stored
* in various arrays.
*
* - First, series.options.data contains all the original config options for
* each point whether added by options or methods like series.addPoint.
* - Next, series.data contains those values converted to points, but in case the series data length
* exceeds the cropThreshold, or if the data is grouped, series.data doesn't contain all the points. It
* only contains the points that have been created on demand.
* - Then there's series.points that contains all currently visible point objects. In case of cropping,
* the cropped-away points are not part of this array. The series.points array starts at series.cropStart
* compared to series.data and series.options.data. If however the series data is grouped, these can't
* be correlated one to one.
* - series.xData and series.processedXData contain clean x values, equivalent to series.data and series.points.
* - series.yData and series.processedYData contain clean x values, equivalent to series.data and series.points.
*
* @param {Object} chart
* @param {Object} options
*/
var Series = function () {};
Series.prototype = {
isCartesian: true,
type: 'line',
pointClass: Point,
sorted: true, // requires the data to be sorted
requireSorting: true,
pointAttrToOptions: { // mapping between SVG attributes and the corresponding options
stroke: 'lineColor',
'stroke-width': 'lineWidth',
fill: 'fillColor',
r: 'radius'
},
colorCounter: 0,
init: function (chart, options) {
var series = this,
eventType,
events,
chartSeries = chart.series;
series.chart = chart;
series.options = options = series.setOptions(options); // merge with plotOptions
series.linkedSeries = [];
// bind the axes
series.bindAxes();
// set some variables
extend(series, {
name: options.name,
state: NORMAL_STATE,
pointAttr: {},
visible: options.visible !== false, // true by default
selected: options.selected === true // false by default
});
// special
if (useCanVG) {
options.animation = false;
}
// register event listeners
events = options.events;
for (eventType in events) {
addEvent(series, eventType, events[eventType]);
}
if (
(events && events.click) ||
(options.point && options.point.events && options.point.events.click) ||
options.allowPointSelect
) {
chart.runTrackerClick = true;
}
series.getColor();
series.getSymbol();
// set the data
series.setData(options.data, false);
// Mark cartesian
if (series.isCartesian) {
chart.hasCartesianSeries = true;
}
// Register it in the chart
chartSeries.push(series);
series._i = chartSeries.length - 1;
// Sort series according to index option (#248, #1123)
stableSort(chartSeries, function (a, b) {
return pick(a.options.index, a._i) - pick(b.options.index, a._i);
});
each(chartSeries, function (series, i) {
series.index = i;
series.name = series.name || 'Series ' + (i + 1);
});
},
/**
* Set the xAxis and yAxis properties of cartesian series, and register the series
* in the axis.series array
*/
bindAxes: function () {
var series = this,
seriesOptions = series.options,
chart = series.chart,
axisOptions;
if (series.isCartesian) {
each(['xAxis', 'yAxis'], function (AXIS) { // repeat for xAxis and yAxis
each(chart[AXIS], function (axis) { // loop through the chart's axis objects
axisOptions = axis.options;
// apply if the series xAxis or yAxis option mathches the number of the
// axis, or if undefined, use the first axis
if ((seriesOptions[AXIS] === axisOptions.index) ||
(seriesOptions[AXIS] !== UNDEFINED && seriesOptions[AXIS] === axisOptions.id) ||
(seriesOptions[AXIS] === UNDEFINED && axisOptions.index === 0)) {
// register this series in the axis.series lookup
axis.series.push(series);
// set this series.xAxis or series.yAxis reference
series[AXIS] = axis;
// mark dirty for redraw
axis.isDirty = true;
}
});
// The series needs an X and an Y axis
if (!series[AXIS]) {
error(18, true);
}
});
}
},
/**
* Return an auto incremented x value based on the pointStart and pointInterval options.
* This is only used if an x value is not given for the point that calls autoIncrement.
*/
autoIncrement: function () {
var series = this,
options = series.options,
xIncrement = series.xIncrement;
xIncrement = pick(xIncrement, options.pointStart, 0);
series.pointInterval = pick(series.pointInterval, options.pointInterval, 1);
series.xIncrement = xIncrement + series.pointInterval;
return xIncrement;
},
/**
* Divide the series data into segments divided by null values.
*/
getSegments: function () {
var series = this,
lastNull = -1,
segments = [],
i,
points = series.points,
pointsLength = points.length;
if (pointsLength) { // no action required for []
// if connect nulls, just remove null points
if (series.options.connectNulls) {
i = pointsLength;
while (i--) {
if (points[i].y === null) {
points.splice(i, 1);
}
}
if (points.length) {
segments = [points];
}
// else, split on null points
} else {
each(points, function (point, i) {
if (point.y === null) {
if (i > lastNull + 1) {
segments.push(points.slice(lastNull + 1, i));
}
lastNull = i;
} else if (i === pointsLength - 1) { // last value
segments.push(points.slice(lastNull + 1, i + 1));
}
});
}
}
// register it
series.segments = segments;
},
/**
* Set the series options by merging from the options tree
* @param {Object} itemOptions
*/
setOptions: function (itemOptions) {
var chart = this.chart,
chartOptions = chart.options,
plotOptions = chartOptions.plotOptions,
typeOptions = plotOptions[this.type],
options;
this.userOptions = itemOptions;
options = merge(
typeOptions,
plotOptions.series,
itemOptions
);
// the tooltip options are merged between global and series specific options
this.tooltipOptions = merge(chartOptions.tooltip, options.tooltip);
// Delte marker object if not allowed (#1125)
if (typeOptions.marker === null) {
delete options.marker;
}
return options;
},
/**
* Get the series' color
*/
getColor: function () {
var options = this.options,
userOptions = this.userOptions,
defaultColors = this.chart.options.colors,
counters = this.chart.counters,
color,
colorIndex;
color = options.color || defaultPlotOptions[this.type].color;
if (!color && !options.colorByPoint) {
if (defined(userOptions._colorIndex)) { // after Series.update()
colorIndex = userOptions._colorIndex;
} else {
userOptions._colorIndex = counters.color;
colorIndex = counters.color++;
}
color = defaultColors[colorIndex];
}
this.color = color;
counters.wrapColor(defaultColors.length);
},
/**
* Get the series' symbol
*/
getSymbol: function () {
var series = this,
userOptions = series.userOptions,
seriesMarkerOption = series.options.marker,
chart = series.chart,
defaultSymbols = chart.options.symbols,
counters = chart.counters,
symbolIndex;
series.symbol = seriesMarkerOption.symbol;
if (!series.symbol) {
if (defined(userOptions._symbolIndex)) { // after Series.update()
symbolIndex = userOptions._symbolIndex;
} else {
userOptions._symbolIndex = counters.symbol;
symbolIndex = counters.symbol++;
}
series.symbol = defaultSymbols[symbolIndex];
}
// don't substract radius in image symbols (#604)
if (/^url/.test(series.symbol)) {
seriesMarkerOption.radius = 0;
}
counters.wrapSymbol(defaultSymbols.length);
},
/**
* Get the series' symbol in the legend. This method should be overridable to create custom
* symbols through Highcharts.seriesTypes[type].prototype.drawLegendSymbols.
*
* @param {Object} legend The legend object
*/
drawLegendSymbol: function (legend) {
var options = this.options,
markerOptions = options.marker,
radius,
legendOptions = legend.options,
legendSymbol,
symbolWidth = legendOptions.symbolWidth,
renderer = this.chart.renderer,
legendItemGroup = this.legendGroup,
verticalCenter = legend.baseline - mathRound(renderer.fontMetrics(legendOptions.itemStyle.fontSize).b * 0.3),
attr;
// Draw the line
if (options.lineWidth) {
attr = {
'stroke-width': options.lineWidth
};
if (options.dashStyle) {
attr.dashstyle = options.dashStyle;
}
this.legendLine = renderer.path([
M,
0,
verticalCenter,
L,
symbolWidth,
verticalCenter
])
.attr(attr)
.add(legendItemGroup);
}
// Draw the marker
if (markerOptions && markerOptions.enabled) {
radius = markerOptions.radius;
this.legendSymbol = legendSymbol = renderer.symbol(
this.symbol,
(symbolWidth / 2) - radius,
verticalCenter - radius,
2 * radius,
2 * radius
)
.add(legendItemGroup);
legendSymbol.isMarker = true;
}
},
/**
* Add a point dynamically after chart load time
* @param {Object} options Point options as given in series.data
* @param {Boolean} redraw Whether to redraw the chart or wait for an explicit call
* @param {Boolean} shift If shift is true, a point is shifted off the start
* of the series as one is appended to the end.
* @param {Boolean|Object} animation Whether to apply animation, and optionally animation
* configuration
*/
addPoint: function (options, redraw, shift, animation) {
var series = this,
seriesOptions = series.options,
data = series.data,
graph = series.graph,
area = series.area,
chart = series.chart,
xData = series.xData,
yData = series.yData,
zData = series.zData,
names = series.names,
currentShift = (graph && graph.shift) || 0,
dataOptions = seriesOptions.data,
point,
isInTheMiddle,
x,
i;
setAnimation(animation, chart);
// Make graph animate sideways
if (shift) {
each([graph, area, series.graphNeg, series.areaNeg], function (shape) {
if (shape) {
shape.shift = currentShift + 1;
}
});
}
if (area) {
area.isArea = true; // needed in animation, both with and without shift
}
// Optional redraw, defaults to true
redraw = pick(redraw, true);
// Get options and push the point to xData, yData and series.options. In series.generatePoints
// the Point instance will be created on demand and pushed to the series.data array.
point = { series: series };
series.pointClass.prototype.applyOptions.apply(point, [options]);
x = point.x;
// Get the insertion point
i = xData.length;
if (series.requireSorting && x < xData[i - 1]) {
isInTheMiddle = true;
while (i && xData[i - 1] > x) {
i--;
}
}
xData.splice(i, 0, x);
yData.splice(i, 0, series.toYData ? series.toYData(point) : point.y);
zData.splice(i, 0, point.z);
if (names) {
names[x] = point.name;
}
dataOptions.splice(i, 0, options);
if (isInTheMiddle) {
series.data.splice(i, 0, null);
series.processData();
}
// Generate points to be added to the legend (#1329)
if (seriesOptions.legendType === 'point') {
series.generatePoints();
}
// Shift the first point off the parallel arrays
// todo: consider series.removePoint(i) method
if (shift) {
if (data[0] && data[0].remove) {
data[0].remove(false);
} else {
data.shift();
xData.shift();
yData.shift();
zData.shift();
dataOptions.shift();
}
}
// redraw
series.isDirty = true;
series.isDirtyData = true;
if (redraw) {
series.getAttribs(); // #1937
chart.redraw();
}
},
/**
* Replace the series data with a new set of data
* @param {Object} data
* @param {Object} redraw
*/
setData: function (data, redraw) {
var series = this,
oldData = series.points,
options = series.options,
chart = series.chart,
firstPoint = null,
xAxis = series.xAxis,
names = xAxis && xAxis.categories && !xAxis.categories.length ? [] : null,
i;
// reset properties
series.xIncrement = null;
series.pointRange = xAxis && xAxis.categories ? 1 : options.pointRange;
series.colorCounter = 0; // for series with colorByPoint (#1547)
// parallel arrays
var xData = [],
yData = [],
zData = [],
dataLength = data ? data.length : [],
turboThreshold = pick(options.turboThreshold, 1000),
pt,
pointArrayMap = series.pointArrayMap,
valueCount = pointArrayMap && pointArrayMap.length,
hasToYData = !!series.toYData;
// In turbo mode, only one- or twodimensional arrays of numbers are allowed. The
// first value is tested, and we assume that all the rest are defined the same
// way. Although the 'for' loops are similar, they are repeated inside each
// if-else conditional for max performance.
if (turboThreshold && dataLength > turboThreshold) {
// find the first non-null point
i = 0;
while (firstPoint === null && i < dataLength) {
firstPoint = data[i];
i++;
}
if (isNumber(firstPoint)) { // assume all points are numbers
var x = pick(options.pointStart, 0),
pointInterval = pick(options.pointInterval, 1);
for (i = 0; i < dataLength; i++) {
xData[i] = x;
yData[i] = data[i];
x += pointInterval;
}
series.xIncrement = x;
} else if (isArray(firstPoint)) { // assume all points are arrays
if (valueCount) { // [x, low, high] or [x, o, h, l, c]
for (i = 0; i < dataLength; i++) {
pt = data[i];
xData[i] = pt[0];
yData[i] = pt.slice(1, valueCount + 1);
}
} else { // [x, y]
for (i = 0; i < dataLength; i++) {
pt = data[i];
xData[i] = pt[0];
yData[i] = pt[1];
}
}
} else {
error(12); // Highcharts expects configs to be numbers or arrays in turbo mode
}
} else {
for (i = 0; i < dataLength; i++) {
if (data[i] !== UNDEFINED) { // stray commas in oldIE
pt = { series: series };
series.pointClass.prototype.applyOptions.apply(pt, [data[i]]);
xData[i] = pt.x;
yData[i] = hasToYData ? series.toYData(pt) : pt.y;
zData[i] = pt.z;
if (names && pt.name) {
names[pt.x] = pt.name; // #2046
}
}
}
}
// Forgetting to cast strings to numbers is a common caveat when handling CSV or JSON
if (isString(yData[0])) {
error(14, true);
}
series.data = [];
series.options.data = data;
series.xData = xData;
series.yData = yData;
series.zData = zData;
series.names = names;
// destroy old points
i = (oldData && oldData.length) || 0;
while (i--) {
if (oldData[i] && oldData[i].destroy) {
oldData[i].destroy();
}
}
// reset minRange (#878)
if (xAxis) {
xAxis.minRange = xAxis.userMinRange;
}
// redraw
series.isDirty = series.isDirtyData = chart.isDirtyBox = true;
if (pick(redraw, true)) {
chart.redraw(false);
}
},
/**
* Remove a series and optionally redraw the chart
*
* @param {Boolean} redraw Whether to redraw the chart or wait for an explicit call
* @param {Boolean|Object} animation Whether to apply animation, and optionally animation
* configuration
*/
remove: function (redraw, animation) {
var series = this,
chart = series.chart;
redraw = pick(redraw, true);
if (!series.isRemoving) { /* prevent triggering native event in jQuery
(calling the remove function from the remove event) */
series.isRemoving = true;
// fire the event with a default handler of removing the point
fireEvent(series, 'remove', null, function () {
// destroy elements
series.destroy();
// redraw
chart.isDirtyLegend = chart.isDirtyBox = true;
chart.linkSeries();
if (redraw) {
chart.redraw(animation);
}
});
}
series.isRemoving = false;
},
/**
* Process the data by cropping away unused data points if the series is longer
* than the crop threshold. This saves computing time for lage series.
*/
processData: function (force) {
var series = this,
processedXData = series.xData, // copied during slice operation below
processedYData = series.yData,
dataLength = processedXData.length,
croppedData,
cropStart = 0,
cropped,
distance,
closestPointRange,
xAxis = series.xAxis,
i, // loop variable
options = series.options,
cropThreshold = options.cropThreshold,
isCartesian = series.isCartesian;
// If the series data or axes haven't changed, don't go through this. Return false to pass
// the message on to override methods like in data grouping.
if (isCartesian && !series.isDirty && !xAxis.isDirty && !series.yAxis.isDirty && !force) {
return false;
}
// optionally filter out points outside the plot area
if (isCartesian && series.sorted && (!cropThreshold || dataLength > cropThreshold || series.forceCrop)) {
var min = xAxis.min,
max = xAxis.max;
// it's outside current extremes
if (processedXData[dataLength - 1] < min || processedXData[0] > max) {
processedXData = [];
processedYData = [];
// only crop if it's actually spilling out
} else if (processedXData[0] < min || processedXData[dataLength - 1] > max) {
croppedData = this.cropData(series.xData, series.yData, min, max);
processedXData = croppedData.xData;
processedYData = croppedData.yData;
cropStart = croppedData.start;
cropped = true;
}
}
// Find the closest distance between processed points
for (i = processedXData.length - 1; i >= 0; i--) {
distance = processedXData[i] - processedXData[i - 1];
if (distance > 0 && (closestPointRange === UNDEFINED || distance < closestPointRange)) {
closestPointRange = distance;
// Unsorted data is not supported by the line tooltip, as well as data grouping and
// navigation in Stock charts (#725) and width calculation of columns (#1900)
} else if (distance < 0 && series.requireSorting) {
error(15);
}
}
// Record the properties
series.cropped = cropped; // undefined or true
series.cropStart = cropStart;
series.processedXData = processedXData;
series.processedYData = processedYData;
if (options.pointRange === null) { // null means auto, as for columns, candlesticks and OHLC
series.pointRange = closestPointRange || 1;
}
series.closestPointRange = closestPointRange;
},
/**
* Iterate over xData and crop values between min and max. Returns object containing crop start/end
* cropped xData with corresponding part of yData, dataMin and dataMax within the cropped range
*/
cropData: function (xData, yData, min, max) {
var dataLength = xData.length,
cropStart = 0,
cropEnd = dataLength,
cropShoulder = pick(this.cropShoulder, 1), // line-type series need one point outside
i;
// iterate up to find slice start
for (i = 0; i < dataLength; i++) {
if (xData[i] >= min) {
cropStart = mathMax(0, i - cropShoulder);
break;
}
}
// proceed to find slice end
for (; i < dataLength; i++) {
if (xData[i] > max) {
cropEnd = i + cropShoulder;
break;
}
}
return {
xData: xData.slice(cropStart, cropEnd),
yData: yData.slice(cropStart, cropEnd),
start: cropStart,
end: cropEnd
};
},
/**
* Generate the data point after the data has been processed by cropping away
* unused points and optionally grouped in Highcharts Stock.
*/
generatePoints: function () {
var series = this,
options = series.options,
dataOptions = options.data,
data = series.data,
dataLength,
processedXData = series.processedXData,
processedYData = series.processedYData,
pointClass = series.pointClass,
processedDataLength = processedXData.length,
cropStart = series.cropStart || 0,
cursor,
hasGroupedData = series.hasGroupedData,
point,
points = [],
i;
if (!data && !hasGroupedData) {
var arr = [];
arr.length = dataOptions.length;
data = series.data = arr;
}
for (i = 0; i < processedDataLength; i++) {
cursor = cropStart + i;
if (!hasGroupedData) {
if (data[cursor]) {
point = data[cursor];
} else if (dataOptions[cursor] !== UNDEFINED) { // #970
data[cursor] = point = (new pointClass()).init(series, dataOptions[cursor], processedXData[i]);
}
points[i] = point;
} else {
// splat the y data in case of ohlc data array
points[i] = (new pointClass()).init(series, [processedXData[i]].concat(splat(processedYData[i])));
}
}
// Hide cropped-away points - this only runs when the number of points is above cropThreshold, or when
// swithching view from non-grouped data to grouped data (#637)
if (data && (processedDataLength !== (dataLength = data.length) || hasGroupedData)) {
for (i = 0; i < dataLength; i++) {
if (i === cropStart && !hasGroupedData) { // when has grouped data, clear all points
i += processedDataLength;
}
if (data[i]) {
data[i].destroyElements();
data[i].plotX = UNDEFINED; // #1003
}
}
}
series.data = data;
series.points = points;
},
/**
* Adds series' points value to corresponding stack
*/
setStackedPoints: function () {
if (!this.options.stacking || (this.visible !== true && this.chart.options.chart.ignoreHiddenSeries !== false)) {
return;
}
var series = this,
xData = series.processedXData,
yData = series.processedYData,
stackedYData = [],
yDataLength = yData.length,
seriesOptions = series.options,
threshold = seriesOptions.threshold,
stackOption = seriesOptions.stack,
stacking = seriesOptions.stacking,
stackKey = series.stackKey,
negKey = '-' + stackKey,
negStacks = series.negStacks,
yAxis = series.yAxis,
stacks = yAxis.stacks,
oldStacks = yAxis.oldStacks,
isNegative,
stack,
other,
key,
i,
x,
y;
// loop over the non-null y values and read them into a local array
for (i = 0; i < yDataLength; i++) {
x = xData[i];
y = yData[i];
// Read stacked values into a stack based on the x value,
// the sign of y and the stack key. Stacking is also handled for null values (#739)
isNegative = negStacks && y < threshold;
key = isNegative ? negKey : stackKey;
// Create empty object for this stack if it doesn't exist yet
if (!stacks[key]) {
stacks[key] = {};
}
// Initialize StackItem for this x
if (!stacks[key][x]) {
if (oldStacks[key] && oldStacks[key][x]) {
stacks[key][x] = oldStacks[key][x];
stacks[key][x].total = null;
} else {
stacks[key][x] = new StackItem(yAxis, yAxis.options.stackLabels, isNegative, x, stackOption, stacking);
}
}
// If the StackItem doesn't exist, create it first
stack = stacks[key][x];
stack.points[series.index] = [stack.cum || 0];
// Add value to the stack total
if (stacking === 'percent') {
// Percent stacked column, totals are the same for the positive and negative stacks
other = isNegative ? stackKey : negKey;
if (negStacks && stacks[other] && stacks[other][x]) {
other = stacks[other][x];
stack.total = other.total = mathMax(other.total, stack.total) + mathAbs(y) || 0;
// Percent stacked areas
} else {
stack.total += mathAbs(y) || 0;
}
} else {
stack.total += y || 0;
}
stack.cum = (stack.cum || 0) + (y || 0);
stack.points[series.index].push(stack.cum);
stackedYData[i] = stack.cum;
}
if (stacking === 'percent') {
yAxis.usePercentage = true;
}
this.stackedYData = stackedYData; // To be used in getExtremes
// Reset old stacks
yAxis.oldStacks = {};
},
/**
* Iterate over all stacks and compute the absolute values to percent
*/
setPercentStacks: function () {
var series = this,
stackKey = series.stackKey,
stacks = series.yAxis.stacks;
each([stackKey, '-' + stackKey], function (key) {
var i = series.xData.length,
x,
stack,
pointExtremes,
totalFactor;
while (i--) {
x = series.xData[i];
stack = stacks[key] && stacks[key][x];
pointExtremes = stack && stack.points[series.index];
if (pointExtremes) {
totalFactor = stack.total ? 100 / stack.total : 0;
pointExtremes[0] = correctFloat(pointExtremes[0] * totalFactor); // Y bottom value
pointExtremes[1] = correctFloat(pointExtremes[1] * totalFactor); // Y value
series.stackedYData[i] = pointExtremes[1];
}
}
});
},
/**
* Calculate Y extremes for visible data
*/
getExtremes: function () {
var xAxis = this.xAxis,
yAxis = this.yAxis,
xData = this.processedXData,
yData = this.stackedYData || this.processedYData,
yDataLength = yData.length,
activeYData = [],
activeCounter = 0,
xExtremes = xAxis.getExtremes(), // #2117, need to compensate for log X axis
xMin = xExtremes.min,
xMax = xExtremes.max,
validValue,
withinRange,
dataMin,
dataMax,
x,
y,
i,
j;
for (i = 0; i < yDataLength; i++) {
x = xData[i];
y = yData[i];
// For points within the visible range, including the first point outside the
// visible range, consider y extremes
validValue = y !== null && y !== UNDEFINED && (!yAxis.isLog || (y.length || y > 0));
withinRange = this.getExtremesFromAll || this.cropped || ((xData[i + 1] || x) >= xMin &&
(xData[i - 1] || x) <= xMax);
if (validValue && withinRange) {
j = y.length;
if (j) { // array, like ohlc or range data
while (j--) {
if (y[j] !== null) {
activeYData[activeCounter++] = y[j];
}
}
} else {
activeYData[activeCounter++] = y;
}
}
}
this.dataMin = pick(dataMin, arrayMin(activeYData));
this.dataMax = pick(dataMax, arrayMax(activeYData));
},
/**
* Translate data points from raw data values to chart specific positioning data
* needed later in drawPoints, drawGraph and drawTracker.
*/
translate: function () {
if (!this.processedXData) { // hidden series
this.processData();
}
this.generatePoints();
var series = this,
options = series.options,
stacking = options.stacking,
xAxis = series.xAxis,
categories = xAxis.categories,
yAxis = series.yAxis,
points = series.points,
dataLength = points.length,
hasModifyValue = !!series.modifyValue,
i,
pointPlacement = options.pointPlacement,
dynamicallyPlaced = pointPlacement === 'between' || isNumber(pointPlacement),
threshold = options.threshold;
// Translate each point
for (i = 0; i < dataLength; i++) {
var point = points[i],
xValue = point.x,
yValue = point.y,
yBottom = point.low,
stack = yAxis.stacks[(series.negStacks && yValue < threshold ? '-' : '') + series.stackKey],
pointStack,
stackValues;
// Discard disallowed y values for log axes
if (yAxis.isLog && yValue <= 0) {
point.y = yValue = null;
}
// Get the plotX translation
point.plotX = xAxis.translate(xValue, 0, 0, 0, 1, pointPlacement, this.type === 'flags'); // Math.round fixes #591
// Calculate the bottom y value for stacked series
if (stacking && series.visible && stack && stack[xValue]) {
pointStack = stack[xValue];
stackValues = pointStack.points[series.index];
yBottom = stackValues[0];
yValue = stackValues[1];
if (yBottom === 0) {
yBottom = pick(threshold, yAxis.min);
}
if (yAxis.isLog && yBottom <= 0) { // #1200, #1232
yBottom = null;
}
point.percentage = stacking === 'percent' && yValue;
point.total = point.stackTotal = pointStack.total;
point.stackY = yValue;
// Place the stack label
pointStack.setOffset(series.pointXOffset || 0, series.barW || 0);
}
// Set translated yBottom or remove it
point.yBottom = defined(yBottom) ?
yAxis.translate(yBottom, 0, 1, 0, 1) :
null;
// general hook, used for Highstock compare mode
if (hasModifyValue) {
yValue = series.modifyValue(yValue, point);
}
// Set the the plotY value, reset it for redraws
point.plotY = (typeof yValue === 'number' && yValue !== Infinity) ?
//mathRound(yAxis.translate(yValue, 0, 1, 0, 1) * 10) / 10 : // Math.round fixes #591
yAxis.translate(yValue, 0, 1, 0, 1) :
UNDEFINED;
// Set client related positions for mouse tracking
point.clientX = dynamicallyPlaced ? xAxis.translate(xValue, 0, 0, 0, 1) : point.plotX; // #1514
point.negative = point.y < (threshold || 0);
// some API data
point.category = categories && categories[point.x] !== UNDEFINED ?
categories[point.x] : point.x;
}
// now that we have the cropped data, build the segments
series.getSegments();
},
/**
* Memoize tooltip texts and positions
*/
setTooltipPoints: function (renew) {
var series = this,
points = [],
pointsLength,
low,
high,
xAxis = series.xAxis,
xExtremes = xAxis && xAxis.getExtremes(),
axisLength = xAxis ? (xAxis.tooltipLen || xAxis.len) : series.chart.plotSizeX, // tooltipLen and tooltipPosName used in polar
point,
pointX,
nextPoint,
i,
tooltipPoints = []; // a lookup array for each pixel in the x dimension
// don't waste resources if tracker is disabled
if (series.options.enableMouseTracking === false) {
return;
}
// renew
if (renew) {
series.tooltipPoints = null;
}
// concat segments to overcome null values
each(series.segments || series.points, function (segment) {
points = points.concat(segment);
});
// Reverse the points in case the X axis is reversed
if (xAxis && xAxis.reversed) {
points = points.reverse();
}
// Polar needs additional shaping
if (series.orderTooltipPoints) {
series.orderTooltipPoints(points);
}
// Assign each pixel position to the nearest point
pointsLength = points.length;
for (i = 0; i < pointsLength; i++) {
point = points[i];
pointX = point.x;
if (pointX >= xExtremes.min && pointX <= xExtremes.max) { // #1149
nextPoint = points[i + 1];
// Set this range's low to the last range's high plus one
low = high === UNDEFINED ? 0 : high + 1;
// Now find the new high
high = points[i + 1] ?
mathMin(mathMax(0, mathFloor( // #2070
(point.clientX + (nextPoint ? (nextPoint.wrappedClientX || nextPoint.clientX) : axisLength)) / 2
)), axisLength) :
axisLength;
while (low >= 0 && low <= high) {
tooltipPoints[low++] = point;
}
}
}
series.tooltipPoints = tooltipPoints;
},
/**
* Format the header of the tooltip
*/
tooltipHeaderFormatter: function (point) {
var series = this,
tooltipOptions = series.tooltipOptions,
xDateFormat = tooltipOptions.xDateFormat,
dateTimeLabelFormats = tooltipOptions.dateTimeLabelFormats,
xAxis = series.xAxis,
isDateTime = xAxis && xAxis.options.type === 'datetime',
headerFormat = tooltipOptions.headerFormat,
closestPointRange = xAxis && xAxis.closestPointRange,
n;
// Guess the best date format based on the closest point distance (#568)
if (isDateTime && !xDateFormat) {
if (closestPointRange) {
for (n in timeUnits) {
if (timeUnits[n] >= closestPointRange) {
xDateFormat = dateTimeLabelFormats[n];
break;
}
}
} else {
xDateFormat = dateTimeLabelFormats.day;
}
}
// Insert the header date format if any
if (isDateTime && xDateFormat && isNumber(point.key)) {
headerFormat = headerFormat.replace('{point.key}', '{point.key:' + xDateFormat + '}');
}
return format(headerFormat, {
point: point,
series: series
});
},
/**
* Series mouse over handler
*/
onMouseOver: function () {
var series = this,
chart = series.chart,
hoverSeries = chart.hoverSeries;
// set normal state to previous series
if (hoverSeries && hoverSeries !== series) {
hoverSeries.onMouseOut();
}
// trigger the event, but to save processing time,
// only if defined
if (series.options.events.mouseOver) {
fireEvent(series, 'mouseOver');
}
// hover this
series.setState(HOVER_STATE);
chart.hoverSeries = series;
},
/**
* Series mouse out handler
*/
onMouseOut: function () {
// trigger the event only if listeners exist
var series = this,
options = series.options,
chart = series.chart,
tooltip = chart.tooltip,
hoverPoint = chart.hoverPoint;
// trigger mouse out on the point, which must be in this series
if (hoverPoint) {
hoverPoint.onMouseOut();
}
// fire the mouse out event
if (series && options.events.mouseOut) {
fireEvent(series, 'mouseOut');
}
// hide the tooltip
if (tooltip && !options.stickyTracking && (!tooltip.shared || series.noSharedTooltip)) {
tooltip.hide();
}
// set normal state
series.setState();
chart.hoverSeries = null;
},
/**
* Animate in the series
*/
animate: function (init) {
var series = this,
chart = series.chart,
renderer = chart.renderer,
clipRect,
markerClipRect,
animation = series.options.animation,
clipBox = chart.clipBox,
inverted = chart.inverted,
sharedClipKey;
// Animation option is set to true
if (animation && !isObject(animation)) {
animation = defaultPlotOptions[series.type].animation;
}
sharedClipKey = '_sharedClip' + animation.duration + animation.easing;
// Initialize the animation. Set up the clipping rectangle.
if (init) {
// If a clipping rectangle with the same properties is currently present in the chart, use that.
clipRect = chart[sharedClipKey];
markerClipRect = chart[sharedClipKey + 'm'];
if (!clipRect) {
chart[sharedClipKey] = clipRect = renderer.clipRect(
extend(clipBox, { width: 0 })
);
chart[sharedClipKey + 'm'] = markerClipRect = renderer.clipRect(
-99, // include the width of the first marker
inverted ? -chart.plotLeft : -chart.plotTop,
99,
inverted ? chart.chartWidth : chart.chartHeight
);
}
series.group.clip(clipRect);
series.markerGroup.clip(markerClipRect);
series.sharedClipKey = sharedClipKey;
// Run the animation
} else {
clipRect = chart[sharedClipKey];
if (clipRect) {
clipRect.animate({
width: chart.plotSizeX
}, animation);
chart[sharedClipKey + 'm'].animate({
width: chart.plotSizeX + 99
}, animation);
}
// Delete this function to allow it only once
series.animate = null;
// Call the afterAnimate function on animation complete (but don't overwrite the animation.complete option
// which should be available to the user).
series.animationTimeout = setTimeout(function () {
series.afterAnimate();
}, animation.duration);
}
},
/**
* This runs after animation to land on the final plot clipping
*/
afterAnimate: function () {
var chart = this.chart,
sharedClipKey = this.sharedClipKey,
group = this.group;
if (group && this.options.clip !== false) {
group.clip(chart.clipRect);
this.markerGroup.clip(); // no clip
}
// Remove the shared clipping rectancgle when all series are shown
setTimeout(function () {
if (sharedClipKey && chart[sharedClipKey]) {
chart[sharedClipKey] = chart[sharedClipKey].destroy();
chart[sharedClipKey + 'm'] = chart[sharedClipKey + 'm'].destroy();
}
}, 100);
},
/**
* Draw the markers
*/
drawPoints: function () {
var series = this,
pointAttr,
points = series.points,
chart = series.chart,
plotX,
plotY,
i,
point,
radius,
symbol,
isImage,
graphic,
options = series.options,
seriesMarkerOptions = options.marker,
pointMarkerOptions,
enabled,
isInside,
markerGroup = series.markerGroup;
if (seriesMarkerOptions.enabled || series._hasPointMarkers) {
i = points.length;
while (i--) {
point = points[i];
plotX = mathFloor(point.plotX); // #1843
plotY = point.plotY;
graphic = point.graphic;
pointMarkerOptions = point.marker || {};
enabled = (seriesMarkerOptions.enabled && pointMarkerOptions.enabled === UNDEFINED) || pointMarkerOptions.enabled;
isInside = chart.isInsidePlot(mathRound(plotX), plotY, chart.inverted); // #1858
// only draw the point if y is defined
if (enabled && plotY !== UNDEFINED && !isNaN(plotY) && point.y !== null) {
// shortcuts
pointAttr = point.pointAttr[point.selected ? SELECT_STATE : NORMAL_STATE];
radius = pointAttr.r;
symbol = pick(pointMarkerOptions.symbol, series.symbol);
isImage = symbol.indexOf('url') === 0;
if (graphic) { // update
graphic
.attr({ // Since the marker group isn't clipped, each individual marker must be toggled
visibility: isInside ? (hasSVG ? 'inherit' : VISIBLE) : HIDDEN
})
.animate(extend({
x: plotX - radius,
y: plotY - radius
}, graphic.symbolName ? { // don't apply to image symbols #507
width: 2 * radius,
height: 2 * radius
} : {}));
} else if (isInside && (radius > 0 || isImage)) {
point.graphic = graphic = chart.renderer.symbol(
symbol,
plotX - radius,
plotY - radius,
2 * radius,
2 * radius
)
.attr(pointAttr)
.add(markerGroup);
}
} else if (graphic) {
point.graphic = graphic.destroy(); // #1269
}
}
}
},
/**
* Convert state properties from API naming conventions to SVG attributes
*
* @param {Object} options API options object
* @param {Object} base1 SVG attribute object to inherit from
* @param {Object} base2 Second level SVG attribute object to inherit from
*/
convertAttribs: function (options, base1, base2, base3) {
var conversion = this.pointAttrToOptions,
attr,
option,
obj = {};
options = options || {};
base1 = base1 || {};
base2 = base2 || {};
base3 = base3 || {};
for (attr in conversion) {
option = conversion[attr];
obj[attr] = pick(options[option], base1[attr], base2[attr], base3[attr]);
}
return obj;
},
/**
* Get the state attributes. Each series type has its own set of attributes
* that are allowed to change on a point's state change. Series wide attributes are stored for
* all series, and additionally point specific attributes are stored for all
* points with individual marker options. If such options are not defined for the point,
* a reference to the series wide attributes is stored in point.pointAttr.
*/
getAttribs: function () {
var series = this,
seriesOptions = series.options,
normalOptions = defaultPlotOptions[series.type].marker ? seriesOptions.marker : seriesOptions,
stateOptions = normalOptions.states,
stateOptionsHover = stateOptions[HOVER_STATE],
pointStateOptionsHover,
seriesColor = series.color,
normalDefaults = {
stroke: seriesColor,
fill: seriesColor
},
points = series.points || [], // #927
i,
point,
seriesPointAttr = [],
pointAttr,
pointAttrToOptions = series.pointAttrToOptions,
hasPointSpecificOptions,
negativeColor = seriesOptions.negativeColor,
defaultLineColor = normalOptions.lineColor,
key;
// series type specific modifications
if (seriesOptions.marker) { // line, spline, area, areaspline, scatter
// if no hover radius is given, default to normal radius + 2
stateOptionsHover.radius = stateOptionsHover.radius || normalOptions.radius + 2;
stateOptionsHover.lineWidth = stateOptionsHover.lineWidth || normalOptions.lineWidth + 1;
} else { // column, bar, pie
// if no hover color is given, brighten the normal color
stateOptionsHover.color = stateOptionsHover.color ||
Color(stateOptionsHover.color || seriesColor)
.brighten(stateOptionsHover.brightness).get();
}
// general point attributes for the series normal state
seriesPointAttr[NORMAL_STATE] = series.convertAttribs(normalOptions, normalDefaults);
// HOVER_STATE and SELECT_STATE states inherit from normal state except the default radius
each([HOVER_STATE, SELECT_STATE], function (state) {
seriesPointAttr[state] =
series.convertAttribs(stateOptions[state], seriesPointAttr[NORMAL_STATE]);
});
// set it
series.pointAttr = seriesPointAttr;
// Generate the point-specific attribute collections if specific point
// options are given. If not, create a referance to the series wide point
// attributes
i = points.length;
while (i--) {
point = points[i];
normalOptions = (point.options && point.options.marker) || point.options;
if (normalOptions && normalOptions.enabled === false) {
normalOptions.radius = 0;
}
if (point.negative && negativeColor) {
point.color = point.fillColor = negativeColor;
}
hasPointSpecificOptions = seriesOptions.colorByPoint || point.color; // #868
// check if the point has specific visual options
if (point.options) {
for (key in pointAttrToOptions) {
if (defined(normalOptions[pointAttrToOptions[key]])) {
hasPointSpecificOptions = true;
}
}
}
// a specific marker config object is defined for the individual point:
// create it's own attribute collection
if (hasPointSpecificOptions) {
normalOptions = normalOptions || {};
pointAttr = [];
stateOptions = normalOptions.states || {}; // reassign for individual point
pointStateOptionsHover = stateOptions[HOVER_STATE] = stateOptions[HOVER_STATE] || {};
// Handle colors for column and pies
if (!seriesOptions.marker) { // column, bar, point
// if no hover color is given, brighten the normal color
pointStateOptionsHover.color =
Color(pointStateOptionsHover.color || point.color)
.brighten(pointStateOptionsHover.brightness ||
stateOptionsHover.brightness).get();
}
// normal point state inherits series wide normal state
pointAttr[NORMAL_STATE] = series.convertAttribs(extend({
color: point.color, // #868
fillColor: point.color, // Individual point color or negative color markers (#2219)
lineColor: defaultLineColor === null ? point.color : UNDEFINED // Bubbles take point color, line markers use white
}, normalOptions), seriesPointAttr[NORMAL_STATE]);
// inherit from point normal and series hover
pointAttr[HOVER_STATE] = series.convertAttribs(
stateOptions[HOVER_STATE],
seriesPointAttr[HOVER_STATE],
pointAttr[NORMAL_STATE]
);
// inherit from point normal and series hover
pointAttr[SELECT_STATE] = series.convertAttribs(
stateOptions[SELECT_STATE],
seriesPointAttr[SELECT_STATE],
pointAttr[NORMAL_STATE]
);
// no marker config object is created: copy a reference to the series-wide
// attribute collection
} else {
pointAttr = seriesPointAttr;
}
point.pointAttr = pointAttr;
}
},
/**
* Update the series with a new set of options
*/
update: function (newOptions, redraw) {
var chart = this.chart,
// must use user options when changing type because this.options is merged
// in with type specific plotOptions
oldOptions = this.userOptions,
oldType = this.type,
proto = seriesTypes[oldType].prototype,
n;
// Do the merge, with some forced options
newOptions = merge(oldOptions, {
animation: false,
index: this.index,
pointStart: this.xData[0] // when updating after addPoint
}, { data: this.options.data }, newOptions);
// Destroy the series and reinsert methods from the type prototype
this.remove(false);
for (n in proto) { // Overwrite series-type specific methods (#2270)
if (proto.hasOwnProperty(n)) {
this[n] = UNDEFINED;
}
}
extend(this, seriesTypes[newOptions.type || oldType].prototype);
this.init(chart, newOptions);
if (pick(redraw, true)) {
chart.redraw(false);
}
},
/**
* Clear DOM objects and free up memory
*/
destroy: function () {
var series = this,
chart = series.chart,
issue134 = /AppleWebKit\/533/.test(userAgent),
destroy,
i,
data = series.data || [],
point,
prop,
axis;
// add event hook
fireEvent(series, 'destroy');
// remove all events
removeEvent(series);
// erase from axes
each(['xAxis', 'yAxis'], function (AXIS) {
axis = series[AXIS];
if (axis) {
erase(axis.series, series);
axis.isDirty = axis.forceRedraw = true;
axis.stacks = {}; // Rebuild stacks when updating (#2229)
}
});
// remove legend items
if (series.legendItem) {
series.chart.legend.destroyItem(series);
}
// destroy all points with their elements
i = data.length;
while (i--) {
point = data[i];
if (point && point.destroy) {
point.destroy();
}
}
series.points = null;
// Clear the animation timeout if we are destroying the series during initial animation
clearTimeout(series.animationTimeout);
// destroy all SVGElements associated to the series
each(['area', 'graph', 'dataLabelsGroup', 'group', 'markerGroup', 'tracker',
'graphNeg', 'areaNeg', 'posClip', 'negClip'], function (prop) {
if (series[prop]) {
// issue 134 workaround
destroy = issue134 && prop === 'group' ?
'hide' :
'destroy';
series[prop][destroy]();
}
});
// remove from hoverSeries
if (chart.hoverSeries === series) {
chart.hoverSeries = null;
}
erase(chart.series, series);
// clear all members
for (prop in series) {
delete series[prop];
}
},
/**
* Draw the data labels
*/
drawDataLabels: function () {
var series = this,
seriesOptions = series.options,
options = seriesOptions.dataLabels,
points = series.points,
pointOptions,
generalOptions,
str,
dataLabelsGroup;
if (options.enabled || series._hasPointLabels) {
// Process default alignment of data labels for columns
if (series.dlProcessOptions) {
series.dlProcessOptions(options);
}
// Create a separate group for the data labels to avoid rotation
dataLabelsGroup = series.plotGroup(
'dataLabelsGroup',
'data-labels',
series.visible ? VISIBLE : HIDDEN,
options.zIndex || 6
);
// Make the labels for each point
generalOptions = options;
each(points, function (point) {
var enabled,
dataLabel = point.dataLabel,
labelConfig,
attr,
name,
rotation,
connector = point.connector,
isNew = true;
// Determine if each data label is enabled
pointOptions = point.options && point.options.dataLabels;
enabled = pick(pointOptions && pointOptions.enabled, generalOptions.enabled); // #2282
// If the point is outside the plot area, destroy it. #678, #820
if (dataLabel && !enabled) {
point.dataLabel = dataLabel.destroy();
// Individual labels are disabled if the are explicitly disabled
// in the point options, or if they fall outside the plot area.
} else if (enabled) {
// Create individual options structure that can be extended without
// affecting others
options = merge(generalOptions, pointOptions);
rotation = options.rotation;
// Get the string
labelConfig = point.getLabelConfig();
str = options.format ?
format(options.format, labelConfig) :
options.formatter.call(labelConfig, options);
// Determine the color
options.style.color = pick(options.color, options.style.color, series.color, 'black');
// update existing label
if (dataLabel) {
if (defined(str)) {
dataLabel
.attr({
text: str
});
isNew = false;
} else { // #1437 - the label is shown conditionally
point.dataLabel = dataLabel = dataLabel.destroy();
if (connector) {
point.connector = connector.destroy();
}
}
// create new label
} else if (defined(str)) {
attr = {
//align: align,
fill: options.backgroundColor,
stroke: options.borderColor,
'stroke-width': options.borderWidth,
r: options.borderRadius || 0,
rotation: rotation,
padding: options.padding,
zIndex: 1
};
// Remove unused attributes (#947)
for (name in attr) {
if (attr[name] === UNDEFINED) {
delete attr[name];
}
}
dataLabel = point.dataLabel = series.chart.renderer[rotation ? 'text' : 'label']( // labels don't support rotation
str,
0,
-999,
null,
null,
null,
options.useHTML
)
.attr(attr)
.css(options.style)
.add(dataLabelsGroup)
.shadow(options.shadow);
}
if (dataLabel) {
// Now the data label is created and placed at 0,0, so we need to align it
series.alignDataLabel(point, dataLabel, options, null, isNew);
}
}
});
}
},
/**
* Align each individual data label
*/
alignDataLabel: function (point, dataLabel, options, alignTo, isNew) {
var chart = this.chart,
inverted = chart.inverted,
plotX = pick(point.plotX, -999),
plotY = pick(point.plotY, -999),
bBox = dataLabel.getBBox(),
visible = this.visible && chart.isInsidePlot(point.plotX, point.plotY, inverted),
alignAttr; // the final position;
if (visible) {
// The alignment box is a singular point
alignTo = extend({
x: inverted ? chart.plotWidth - plotY : plotX,
y: mathRound(inverted ? chart.plotHeight - plotX : plotY),
width: 0,
height: 0
}, alignTo);
// Add the text size for alignment calculation
extend(options, {
width: bBox.width,
height: bBox.height
});
// Allow a hook for changing alignment in the last moment, then do the alignment
if (options.rotation) { // Fancy box alignment isn't supported for rotated text
alignAttr = {
align: options.align,
x: alignTo.x + options.x + alignTo.width / 2,
y: alignTo.y + options.y + alignTo.height / 2
};
dataLabel[isNew ? 'attr' : 'animate'](alignAttr);
} else {
dataLabel.align(options, null, alignTo);
alignAttr = dataLabel.alignAttr;
// Handle justify or crop
if (pick(options.overflow, 'justify') === 'justify') { // docs: overflow: justify, also crop only applies when not justify
this.justifyDataLabel(dataLabel, options, alignAttr, bBox, alignTo, isNew);
} else if (pick(options.crop, true)) {
// Now check that the data label is within the plot area
visible = chart.isInsidePlot(alignAttr.x, alignAttr.y) && chart.isInsidePlot(alignAttr.x + bBox.width, alignAttr.y + bBox.height);
}
}
}
// Show or hide based on the final aligned position
if (!visible) {
dataLabel.attr({ y: -999 });
}
},
/**
* If data labels fall partly outside the plot area, align them back in, in a way that
* doesn't hide the point.
*/
justifyDataLabel: function (dataLabel, options, alignAttr, bBox, alignTo, isNew) {
var chart = this.chart,
align = options.align,
verticalAlign = options.verticalAlign,
off,
justified;
// Off left
off = alignAttr.x;
if (off < 0) {
if (align === 'right') {
options.align = 'left';
} else {
options.x = -off;
}
justified = true;
}
// Off right
off = alignAttr.x + bBox.width;
if (off > chart.plotWidth) {
if (align === 'left') {
options.align = 'right';
} else {
options.x = chart.plotWidth - off;
}
justified = true;
}
// Off top
off = alignAttr.y;
if (off < 0) {
if (verticalAlign === 'bottom') {
options.verticalAlign = 'top';
} else {
options.y = -off;
}
justified = true;
}
// Off bottom
off = alignAttr.y + bBox.height;
if (off > chart.plotHeight) {
if (verticalAlign === 'top') {
options.verticalAlign = 'bottom';
} else {
options.y = chart.plotHeight - off;
}
justified = true;
}
if (justified) {
dataLabel.placed = !isNew;
dataLabel.align(options, null, alignTo);
}
},
/**
* Return the graph path of a segment
*/
getSegmentPath: function (segment) {
var series = this,
segmentPath = [],
step = series.options.step;
// build the segment line
each(segment, function (point, i) {
var plotX = point.plotX,
plotY = point.plotY,
lastPoint;
if (series.getPointSpline) { // generate the spline as defined in the SplineSeries object
segmentPath.push.apply(segmentPath, series.getPointSpline(segment, point, i));
} else {
// moveTo or lineTo
segmentPath.push(i ? L : M);
// step line?
if (step && i) {
lastPoint = segment[i - 1];
if (step === 'right') {
segmentPath.push(
lastPoint.plotX,
plotY
);
} else if (step === 'center') {
segmentPath.push(
(lastPoint.plotX + plotX) / 2,
lastPoint.plotY,
(lastPoint.plotX + plotX) / 2,
plotY
);
} else {
segmentPath.push(
plotX,
lastPoint.plotY
);
}
}
// normal line to next point
segmentPath.push(
point.plotX,
point.plotY
);
}
});
return segmentPath;
},
/**
* Get the graph path
*/
getGraphPath: function () {
var series = this,
graphPath = [],
segmentPath,
singlePoints = []; // used in drawTracker
// Divide into segments and build graph and area paths
each(series.segments, function (segment) {
segmentPath = series.getSegmentPath(segment);
// add the segment to the graph, or a single point for tracking
if (segment.length > 1) {
graphPath = graphPath.concat(segmentPath);
} else {
singlePoints.push(segment[0]);
}
});
// Record it for use in drawGraph and drawTracker, and return graphPath
series.singlePoints = singlePoints;
series.graphPath = graphPath;
return graphPath;
},
/**
* Draw the actual graph
*/
drawGraph: function () {
var series = this,
options = this.options,
props = [['graph', options.lineColor || this.color]],
lineWidth = options.lineWidth,
dashStyle = options.dashStyle,
graphPath = this.getGraphPath(),
negativeColor = options.negativeColor;
if (negativeColor) {
props.push(['graphNeg', negativeColor]);
}
// draw the graph
each(props, function (prop, i) {
var graphKey = prop[0],
graph = series[graphKey],
attribs;
if (graph) {
stop(graph); // cancel running animations, #459
graph.animate({ d: graphPath });
} else if (lineWidth && graphPath.length) { // #1487
attribs = {
stroke: prop[1],
'stroke-width': lineWidth,
zIndex: 1 // #1069
};
if (dashStyle) {
attribs.dashstyle = dashStyle;
} else {
attribs['stroke-linecap'] = attribs['stroke-linejoin'] = 'round';
}
series[graphKey] = series.chart.renderer.path(graphPath)
.attr(attribs)
.add(series.group)
.shadow(!i && options.shadow);
}
});
},
/**
* Clip the graphs into the positive and negative coloured graphs
*/
clipNeg: function () {
var options = this.options,
chart = this.chart,
renderer = chart.renderer,
negativeColor = options.negativeColor || options.negativeFillColor,
translatedThreshold,
posAttr,
negAttr,
graph = this.graph,
area = this.area,
posClip = this.posClip,
negClip = this.negClip,
chartWidth = chart.chartWidth,
chartHeight = chart.chartHeight,
chartSizeMax = mathMax(chartWidth, chartHeight),
yAxis = this.yAxis,
above,
below;
if (negativeColor && (graph || area)) {
translatedThreshold = mathRound(yAxis.toPixels(options.threshold || 0, true));
above = {
x: 0,
y: 0,
width: chartSizeMax,
height: translatedThreshold
};
below = {
x: 0,
y: translatedThreshold,
width: chartSizeMax,
height: chartSizeMax
};
if (chart.inverted) {
above.height = below.y = chart.plotWidth - translatedThreshold;
if (renderer.isVML) {
above = {
x: chart.plotWidth - translatedThreshold - chart.plotLeft,
y: 0,
width: chartWidth,
height: chartHeight
};
below = {
x: translatedThreshold + chart.plotLeft - chartWidth,
y: 0,
width: chart.plotLeft + translatedThreshold,
height: chartWidth
};
}
}
if (yAxis.reversed) {
posAttr = below;
negAttr = above;
} else {
posAttr = above;
negAttr = below;
}
if (posClip) { // update
posClip.animate(posAttr);
negClip.animate(negAttr);
} else {
this.posClip = posClip = renderer.clipRect(posAttr);
this.negClip = negClip = renderer.clipRect(negAttr);
if (graph && this.graphNeg) {
graph.clip(posClip);
this.graphNeg.clip(negClip);
}
if (area) {
area.clip(posClip);
this.areaNeg.clip(negClip);
}
}
}
},
/**
* Initialize and perform group inversion on series.group and series.markerGroup
*/
invertGroups: function () {
var series = this,
chart = series.chart;
// Pie, go away (#1736)
if (!series.xAxis) {
return;
}
// A fixed size is needed for inversion to work
function setInvert() {
var size = {
width: series.yAxis.len,
height: series.xAxis.len
};
each(['group', 'markerGroup'], function (groupName) {
if (series[groupName]) {
series[groupName].attr(size).invert();
}
});
}
addEvent(chart, 'resize', setInvert); // do it on resize
addEvent(series, 'destroy', function () {
removeEvent(chart, 'resize', setInvert);
});
// Do it now
setInvert(); // do it now
// On subsequent render and redraw, just do setInvert without setting up events again
series.invertGroups = setInvert;
},
/**
* General abstraction for creating plot groups like series.group, series.dataLabelsGroup and
* series.markerGroup. On subsequent calls, the group will only be adjusted to the updated plot size.
*/
plotGroup: function (prop, name, visibility, zIndex, parent) {
var group = this[prop],
isNew = !group;
// Generate it on first call
if (isNew) {
this[prop] = group = this.chart.renderer.g(name)
.attr({
visibility: visibility,
zIndex: zIndex || 0.1 // IE8 needs this
})
.add(parent);
}
// Place it on first and subsequent (redraw) calls
group[isNew ? 'attr' : 'animate'](this.getPlotBox());
return group;
},
/**
* Get the translation and scale for the plot area of this series
*/
getPlotBox: function () {
return {
translateX: this.xAxis ? this.xAxis.left : this.chart.plotLeft,
translateY: this.yAxis ? this.yAxis.top : this.chart.plotTop,
scaleX: 1, // #1623
scaleY: 1
};
},
/**
* Render the graph and markers
*/
render: function () {
var series = this,
chart = series.chart,
group,
options = series.options,
animation = options.animation,
doAnimation = animation && !!series.animate &&
chart.renderer.isSVG, // this animation doesn't work in IE8 quirks when the group div is hidden,
// and looks bad in other oldIE
visibility = series.visible ? VISIBLE : HIDDEN,
zIndex = options.zIndex,
hasRendered = series.hasRendered,
chartSeriesGroup = chart.seriesGroup;
// the group
group = series.plotGroup(
'group',
'series',
visibility,
zIndex,
chartSeriesGroup
);
series.markerGroup = series.plotGroup(
'markerGroup',
'markers',
visibility,
zIndex,
chartSeriesGroup
);
// initiate the animation
if (doAnimation) {
series.animate(true);
}
// cache attributes for shapes
series.getAttribs();
// SVGRenderer needs to know this before drawing elements (#1089, #1795)
group.inverted = series.isCartesian ? chart.inverted : false;
// draw the graph if any
if (series.drawGraph) {
series.drawGraph();
series.clipNeg();
}
// draw the data labels (inn pies they go before the points)
series.drawDataLabels();
// draw the points
series.drawPoints();
// draw the mouse tracking area
if (series.options.enableMouseTracking !== false) {
series.drawTracker();
}
// Handle inverted series and tracker groups
if (chart.inverted) {
series.invertGroups();
}
// Initial clipping, must be defined after inverting groups for VML
if (options.clip !== false && !series.sharedClipKey && !hasRendered) {
group.clip(chart.clipRect);
}
// Run the animation
if (doAnimation) {
series.animate();
} else if (!hasRendered) {
series.afterAnimate();
}
series.isDirty = series.isDirtyData = false; // means data is in accordance with what you see
// (See #322) series.isDirty = series.isDirtyData = false; // means data is in accordance with what you see
series.hasRendered = true;
},
/**
* Redraw the series after an update in the axes.
*/
redraw: function () {
var series = this,
chart = series.chart,
wasDirtyData = series.isDirtyData, // cache it here as it is set to false in render, but used after
group = series.group,
xAxis = series.xAxis,
yAxis = series.yAxis;
// reposition on resize
if (group) {
if (chart.inverted) {
group.attr({
width: chart.plotWidth,
height: chart.plotHeight
});
}
group.animate({
translateX: pick(xAxis && xAxis.left, chart.plotLeft),
translateY: pick(yAxis && yAxis.top, chart.plotTop)
});
}
series.translate();
series.setTooltipPoints(true);
series.render();
if (wasDirtyData) {
fireEvent(series, 'updatedData');
}
},
/**
* Set the state of the graph
*/
setState: function (state) {
var series = this,
options = series.options,
graph = series.graph,
graphNeg = series.graphNeg,
stateOptions = options.states,
lineWidth = options.lineWidth,
attribs;
state = state || NORMAL_STATE;
if (series.state !== state) {
series.state = state;
if (stateOptions[state] && stateOptions[state].enabled === false) {
return;
}
if (state) {
lineWidth = stateOptions[state].lineWidth || lineWidth + 1;
}
if (graph && !graph.dashstyle) { // hover is turned off for dashed lines in VML
attribs = {
'stroke-width': lineWidth
};
// use attr because animate will cause any other animation on the graph to stop
graph.attr(attribs);
if (graphNeg) {
graphNeg.attr(attribs);
}
}
}
},
/**
* Set the visibility of the graph
*
* @param vis {Boolean} True to show the series, false to hide. If UNDEFINED,
* the visibility is toggled.
*/
setVisible: function (vis, redraw) {
var series = this,
chart = series.chart,
legendItem = series.legendItem,
showOrHide,
ignoreHiddenSeries = chart.options.chart.ignoreHiddenSeries,
oldVisibility = series.visible;
// if called without an argument, toggle visibility
series.visible = vis = series.userOptions.visible = vis === UNDEFINED ? !oldVisibility : vis;
showOrHide = vis ? 'show' : 'hide';
// show or hide elements
each(['group', 'dataLabelsGroup', 'markerGroup', 'tracker'], function (key) {
if (series[key]) {
series[key][showOrHide]();
}
});
// hide tooltip (#1361)
if (chart.hoverSeries === series) {
series.onMouseOut();
}
if (legendItem) {
chart.legend.colorizeItem(series, vis);
}
// rescale or adapt to resized chart
series.isDirty = true;
// in a stack, all other series are affected
if (series.options.stacking) {
each(chart.series, function (otherSeries) {
if (otherSeries.options.stacking && otherSeries.visible) {
otherSeries.isDirty = true;
}
});
}
// show or hide linked series
each(series.linkedSeries, function (otherSeries) {
otherSeries.setVisible(vis, false);
});
if (ignoreHiddenSeries) {
chart.isDirtyBox = true;
}
if (redraw !== false) {
chart.redraw();
}
fireEvent(series, showOrHide);
},
/**
* Show the graph
*/
show: function () {
this.setVisible(true);
},
/**
* Hide the graph
*/
hide: function () {
this.setVisible(false);
},
/**
* Set the selected state of the graph
*
* @param selected {Boolean} True to select the series, false to unselect. If
* UNDEFINED, the selection state is toggled.
*/
select: function (selected) {
var series = this;
// if called without an argument, toggle
series.selected = selected = (selected === UNDEFINED) ? !series.selected : selected;
if (series.checkbox) {
series.checkbox.checked = selected;
}
fireEvent(series, selected ? 'select' : 'unselect');
},
/**
* Draw the tracker object that sits above all data labels and markers to
* track mouse events on the graph or points. For the line type charts
* the tracker uses the same graphPath, but with a greater stroke width
* for better control.
*/
drawTracker: function () {
var series = this,
options = series.options,
trackByArea = options.trackByArea,
trackerPath = [].concat(trackByArea ? series.areaPath : series.graphPath),
trackerPathLength = trackerPath.length,
chart = series.chart,
pointer = chart.pointer,
renderer = chart.renderer,
snap = chart.options.tooltip.snap,
tracker = series.tracker,
cursor = options.cursor,
css = cursor && { cursor: cursor },
singlePoints = series.singlePoints,
singlePoint,
i,
onMouseOver = function () {
if (chart.hoverSeries !== series) {
series.onMouseOver();
}
};
// Extend end points. A better way would be to use round linecaps,
// but those are not clickable in VML.
if (trackerPathLength && !trackByArea) {
i = trackerPathLength + 1;
while (i--) {
if (trackerPath[i] === M) { // extend left side
trackerPath.splice(i + 1, 0, trackerPath[i + 1] - snap, trackerPath[i + 2], L);
}
if ((i && trackerPath[i] === M) || i === trackerPathLength) { // extend right side
trackerPath.splice(i, 0, L, trackerPath[i - 2] + snap, trackerPath[i - 1]);
}
}
}
// handle single points
for (i = 0; i < singlePoints.length; i++) {
singlePoint = singlePoints[i];
trackerPath.push(M, singlePoint.plotX - snap, singlePoint.plotY,
L, singlePoint.plotX + snap, singlePoint.plotY);
}
// draw the tracker
if (tracker) {
tracker.attr({ d: trackerPath });
} else { // create
series.tracker = renderer.path(trackerPath)
.attr({
'stroke-linejoin': 'round', // #1225
visibility: series.visible ? VISIBLE : HIDDEN,
stroke: TRACKER_FILL,
fill: trackByArea ? TRACKER_FILL : NONE,
'stroke-width' : options.lineWidth + (trackByArea ? 0 : 2 * snap),
zIndex: 2
})
.add(series.group);
// The tracker is added to the series group, which is clipped, but is covered
// by the marker group. So the marker group also needs to capture events.
each([series.tracker, series.markerGroup], function (tracker) {
tracker.addClass(PREFIX + 'tracker')
.on('mouseover', onMouseOver)
.on('mouseout', function (e) { pointer.onTrackerMouseOut(e); })
.css(css);
if (hasTouch) {
tracker.on('touchstart', onMouseOver);
}
});
}
}
}; // end Series prototype
/**
* LineSeries object
*/
var LineSeries = extendClass(Series);
seriesTypes.line = LineSeries;
/**
* Set the default options for area
*/
defaultPlotOptions.area = merge(defaultSeriesOptions, {
threshold: 0
// trackByArea: false,
// lineColor: null, // overrides color, but lets fillColor be unaltered
// fillOpacity: 0.75,
// fillColor: null
});
/**
* AreaSeries object
*/
var AreaSeries = extendClass(Series, {
type: 'area',
/**
* For stacks, don't split segments on null values. Instead, draw null values with
* no marker. Also insert dummy points for any X position that exists in other series
* in the stack.
*/
getSegments: function () {
var segments = [],
segment = [],
keys = [],
xAxis = this.xAxis,
yAxis = this.yAxis,
stack = yAxis.stacks[this.stackKey],
pointMap = {},
plotX,
plotY,
points = this.points,
connectNulls = this.options.connectNulls,
val,
i,
x;
if (this.options.stacking && !this.cropped) { // cropped causes artefacts in Stock, and perf issue
// Create a map where we can quickly look up the points by their X value.
for (i = 0; i < points.length; i++) {
pointMap[points[i].x] = points[i];
}
// Sort the keys (#1651)
for (x in stack) {
keys.push(+x);
}
keys.sort(function (a, b) {
return a - b;
});
each(keys, function (x) {
if (connectNulls && (!pointMap[x] || pointMap[x].y === null)) { // #1836
return;
// The point exists, push it to the segment
} else if (pointMap[x]) {
segment.push(pointMap[x]);
// There is no point for this X value in this series, so we
// insert a dummy point in order for the areas to be drawn
// correctly.
} else {
plotX = xAxis.translate(x);
val = stack[x].percent ? (stack[x].total ? stack[x].cum * 100 / stack[x].total : 0) : stack[x].cum; // #1991
plotY = yAxis.toPixels(val, true);
segment.push({
y: null,
plotX: plotX,
clientX: plotX,
plotY: plotY,
yBottom: plotY,
onMouseOver: noop
});
}
});
if (segment.length) {
segments.push(segment);
}
} else {
Series.prototype.getSegments.call(this);
segments = this.segments;
}
this.segments = segments;
},
/**
* Extend the base Series getSegmentPath method by adding the path for the area.
* This path is pushed to the series.areaPath property.
*/
getSegmentPath: function (segment) {
var segmentPath = Series.prototype.getSegmentPath.call(this, segment), // call base method
areaSegmentPath = [].concat(segmentPath), // work on a copy for the area path
i,
options = this.options,
segLength = segmentPath.length,
translatedThreshold = this.yAxis.getThreshold(options.threshold), // #2181
yBottom;
if (segLength === 3) { // for animation from 1 to two points
areaSegmentPath.push(L, segmentPath[1], segmentPath[2]);
}
if (options.stacking && !this.closedStacks) {
// Follow stack back. Todo: implement areaspline. A general solution could be to
// reverse the entire graphPath of the previous series, though may be hard with
// splines and with series with different extremes
for (i = segment.length - 1; i >= 0; i--) {
yBottom = pick(segment[i].yBottom, translatedThreshold);
// step line?
if (i < segment.length - 1 && options.step) {
areaSegmentPath.push(segment[i + 1].plotX, yBottom);
}
areaSegmentPath.push(segment[i].plotX, yBottom);
}
} else { // follow zero line back
this.closeSegment(areaSegmentPath, segment, translatedThreshold);
}
this.areaPath = this.areaPath.concat(areaSegmentPath);
return segmentPath;
},
/**
* Extendable method to close the segment path of an area. This is overridden in polar
* charts.
*/
closeSegment: function (path, segment, translatedThreshold) {
path.push(
L,
segment[segment.length - 1].plotX,
translatedThreshold,
L,
segment[0].plotX,
translatedThreshold
);
},
/**
* Draw the graph and the underlying area. This method calls the Series base
* function and adds the area. The areaPath is calculated in the getSegmentPath
* method called from Series.prototype.drawGraph.
*/
drawGraph: function () {
// Define or reset areaPath
this.areaPath = [];
// Call the base method
Series.prototype.drawGraph.apply(this);
// Define local variables
var series = this,
areaPath = this.areaPath,
options = this.options,
negativeColor = options.negativeColor,
negativeFillColor = options.negativeFillColor,
props = [['area', this.color, options.fillColor]]; // area name, default color, fill color
if (negativeColor || negativeFillColor) {
props.push(['areaNeg', negativeColor, negativeFillColor]);
}
each(props, function (prop) {
var areaKey = prop[0],
area = series[areaKey];
// Create or update the area
if (area) { // update
area.animate({ d: areaPath });
} else { // create
series[areaKey] = series.chart.renderer.path(areaPath)
.attr({
fill: pick(
prop[2],
Color(prop[1]).setOpacity(pick(options.fillOpacity, 0.75)).get()
),
zIndex: 0 // #1069
}).add(series.group);
}
});
},
/**
* Get the series' symbol in the legend
*
* @param {Object} legend The legend object
* @param {Object} item The series (this) or point
*/
drawLegendSymbol: function (legend, item) {
item.legendSymbol = this.chart.renderer.rect(
0,
legend.baseline - 11,
legend.options.symbolWidth,
12,
2
).attr({
zIndex: 3
}).add(item.legendGroup);
}
});
seriesTypes.area = AreaSeries;/**
* Set the default options for spline
*/
defaultPlotOptions.spline = merge(defaultSeriesOptions);
/**
* SplineSeries object
*/
var SplineSeries = extendClass(Series, {
type: 'spline',
/**
* Get the spline segment from a given point's previous neighbour to the given point
*/
getPointSpline: function (segment, point, i) {
var smoothing = 1.5, // 1 means control points midway between points, 2 means 1/3 from the point, 3 is 1/4 etc
denom = smoothing + 1,
plotX = point.plotX,
plotY = point.plotY,
lastPoint = segment[i - 1],
nextPoint = segment[i + 1],
leftContX,
leftContY,
rightContX,
rightContY,
ret;
// find control points
if (lastPoint && nextPoint) {
var lastX = lastPoint.plotX,
lastY = lastPoint.plotY,
nextX = nextPoint.plotX,
nextY = nextPoint.plotY,
correction;
leftContX = (smoothing * plotX + lastX) / denom;
leftContY = (smoothing * plotY + lastY) / denom;
rightContX = (smoothing * plotX + nextX) / denom;
rightContY = (smoothing * plotY + nextY) / denom;
// have the two control points make a straight line through default point
correction = ((rightContY - leftContY) * (rightContX - plotX)) /
(rightContX - leftContX) + plotY - rightContY;
leftContY += correction;
rightContY += correction;
// to prevent false extremes, check that control points are between
// neighbouring points' y values
if (leftContY > lastY && leftContY > plotY) {
leftContY = mathMax(lastY, plotY);
rightContY = 2 * plotY - leftContY; // mirror of left control point
} else if (leftContY < lastY && leftContY < plotY) {
leftContY = mathMin(lastY, plotY);
rightContY = 2 * plotY - leftContY;
}
if (rightContY > nextY && rightContY > plotY) {
rightContY = mathMax(nextY, plotY);
leftContY = 2 * plotY - rightContY;
} else if (rightContY < nextY && rightContY < plotY) {
rightContY = mathMin(nextY, plotY);
leftContY = 2 * plotY - rightContY;
}
// record for drawing in next point
point.rightContX = rightContX;
point.rightContY = rightContY;
}
// Visualize control points for debugging
/*
if (leftContX) {
this.chart.renderer.circle(leftContX + this.chart.plotLeft, leftContY + this.chart.plotTop, 2)
.attr({
stroke: 'red',
'stroke-width': 1,
fill: 'none'
})
.add();
this.chart.renderer.path(['M', leftContX + this.chart.plotLeft, leftContY + this.chart.plotTop,
'L', plotX + this.chart.plotLeft, plotY + this.chart.plotTop])
.attr({
stroke: 'red',
'stroke-width': 1
})
.add();
this.chart.renderer.circle(rightContX + this.chart.plotLeft, rightContY + this.chart.plotTop, 2)
.attr({
stroke: 'green',
'stroke-width': 1,
fill: 'none'
})
.add();
this.chart.renderer.path(['M', rightContX + this.chart.plotLeft, rightContY + this.chart.plotTop,
'L', plotX + this.chart.plotLeft, plotY + this.chart.plotTop])
.attr({
stroke: 'green',
'stroke-width': 1
})
.add();
}
*/
// moveTo or lineTo
if (!i) {
ret = [M, plotX, plotY];
} else { // curve from last point to this
ret = [
'C',
lastPoint.rightContX || lastPoint.plotX,
lastPoint.rightContY || lastPoint.plotY,
leftContX || plotX,
leftContY || plotY,
plotX,
plotY
];
lastPoint.rightContX = lastPoint.rightContY = null; // reset for updating series later
}
return ret;
}
});
seriesTypes.spline = SplineSeries;
/**
* Set the default options for areaspline
*/
defaultPlotOptions.areaspline = merge(defaultPlotOptions.area);
/**
* AreaSplineSeries object
*/
var areaProto = AreaSeries.prototype,
AreaSplineSeries = extendClass(SplineSeries, {
type: 'areaspline',
closedStacks: true, // instead of following the previous graph back, follow the threshold back
// Mix in methods from the area series
getSegmentPath: areaProto.getSegmentPath,
closeSegment: areaProto.closeSegment,
drawGraph: areaProto.drawGraph,
drawLegendSymbol: areaProto.drawLegendSymbol
});
seriesTypes.areaspline = AreaSplineSeries;
/**
* Set the default options for column
*/
defaultPlotOptions.column = merge(defaultSeriesOptions, {
borderColor: '#FFFFFF',
borderWidth: 1,
borderRadius: 0,
//colorByPoint: undefined,
groupPadding: 0.2,
//grouping: true,
marker: null, // point options are specified in the base options
pointPadding: 0.1,
//pointWidth: null,
minPointLength: 0,
cropThreshold: 50, // when there are more points, they will not animate out of the chart on xAxis.setExtremes
pointRange: null, // null means auto, meaning 1 in a categorized axis and least distance between points if not categories
states: {
hover: {
brightness: 0.1,
shadow: false
},
select: {
color: '#C0C0C0',
borderColor: '#000000',
shadow: false
}
},
dataLabels: {
align: null, // auto
verticalAlign: null, // auto
y: null
},
stickyTracking: false,
threshold: 0
});
/**
* ColumnSeries object
*/
var ColumnSeries = extendClass(Series, {
type: 'column',
pointAttrToOptions: { // mapping between SVG attributes and the corresponding options
stroke: 'borderColor',
'stroke-width': 'borderWidth',
fill: 'color',
r: 'borderRadius'
},
cropShoulder: 0,
trackerGroups: ['group', 'dataLabelsGroup'],
negStacks: true, // use separate negative stacks, unlike area stacks where a negative
// point is substracted from previous (#1910)
/**
* Initialize the series
*/
init: function () {
Series.prototype.init.apply(this, arguments);
var series = this,
chart = series.chart;
// if the series is added dynamically, force redraw of other
// series affected by a new column
if (chart.hasRendered) {
each(chart.series, function (otherSeries) {
if (otherSeries.type === series.type) {
otherSeries.isDirty = true;
}
});
}
},
/**
* Return the width and x offset of the columns adjusted for grouping, groupPadding, pointPadding,
* pointWidth etc.
*/
getColumnMetrics: function () {
var series = this,
options = series.options,
xAxis = series.xAxis,
yAxis = series.yAxis,
reversedXAxis = xAxis.reversed,
stackKey,
stackGroups = {},
columnIndex,
columnCount = 0;
// Get the total number of column type series.
// This is called on every series. Consider moving this logic to a
// chart.orderStacks() function and call it on init, addSeries and removeSeries
if (options.grouping === false) {
columnCount = 1;
} else {
each(series.chart.series, function (otherSeries) {
var otherOptions = otherSeries.options,
otherYAxis = otherSeries.yAxis;
if (otherSeries.type === series.type && otherSeries.visible &&
yAxis.len === otherYAxis.len && yAxis.pos === otherYAxis.pos) { // #642, #2086
if (otherOptions.stacking) {
stackKey = otherSeries.stackKey;
if (stackGroups[stackKey] === UNDEFINED) {
stackGroups[stackKey] = columnCount++;
}
columnIndex = stackGroups[stackKey];
} else if (otherOptions.grouping !== false) { // #1162
columnIndex = columnCount++;
}
otherSeries.columnIndex = columnIndex;
}
});
}
var categoryWidth = mathMin(
mathAbs(xAxis.transA) * (xAxis.ordinalSlope || options.pointRange || xAxis.closestPointRange || 1),
xAxis.len // #1535
),
groupPadding = categoryWidth * options.groupPadding,
groupWidth = categoryWidth - 2 * groupPadding,
pointOffsetWidth = groupWidth / columnCount,
optionPointWidth = options.pointWidth,
pointPadding = defined(optionPointWidth) ? (pointOffsetWidth - optionPointWidth) / 2 :
pointOffsetWidth * options.pointPadding,
pointWidth = pick(optionPointWidth, pointOffsetWidth - 2 * pointPadding), // exact point width, used in polar charts
colIndex = (reversedXAxis ?
columnCount - (series.columnIndex || 0) : // #1251
series.columnIndex) || 0,
pointXOffset = pointPadding + (groupPadding + colIndex *
pointOffsetWidth - (categoryWidth / 2)) *
(reversedXAxis ? -1 : 1);
// Save it for reading in linked series (Error bars particularly)
return (series.columnMetrics = {
width: pointWidth,
offset: pointXOffset
});
},
/**
* Translate each point to the plot area coordinate system and find shape positions
*/
translate: function () {
var series = this,
chart = series.chart,
options = series.options,
borderWidth = options.borderWidth,
yAxis = series.yAxis,
threshold = options.threshold,
translatedThreshold = series.translatedThreshold = yAxis.getThreshold(threshold),
minPointLength = pick(options.minPointLength, 5),
metrics = series.getColumnMetrics(),
pointWidth = metrics.width,
seriesBarW = series.barW = mathCeil(mathMax(pointWidth, 1 + 2 * borderWidth)), // rounded and postprocessed for border width
pointXOffset = series.pointXOffset = metrics.offset,
xCrisp = -(borderWidth % 2 ? 0.5 : 0),
yCrisp = borderWidth % 2 ? 0.5 : 1;
if (chart.renderer.isVML && chart.inverted) {
yCrisp += 1;
}
Series.prototype.translate.apply(series);
// record the new values
each(series.points, function (point) {
var yBottom = pick(point.yBottom, translatedThreshold),
plotY = mathMin(mathMax(-999 - yBottom, point.plotY), yAxis.len + 999 + yBottom), // Don't draw too far outside plot area (#1303, #2241)
barX = point.plotX + pointXOffset,
barW = seriesBarW,
barY = mathMin(plotY, yBottom),
right,
bottom,
fromTop,
fromLeft,
barH = mathMax(plotY, yBottom) - barY;
// Handle options.minPointLength
if (mathAbs(barH) < minPointLength) {
if (minPointLength) {
barH = minPointLength;
barY =
mathRound(mathAbs(barY - translatedThreshold) > minPointLength ? // stacked
yBottom - minPointLength : // keep position
translatedThreshold - (yAxis.translate(point.y, 0, 1, 0, 1) <= translatedThreshold ? minPointLength : 0)); // use exact yAxis.translation (#1485)
}
}
// Cache for access in polar
point.barX = barX;
point.pointWidth = pointWidth;
// Round off to obtain crisp edges
fromLeft = mathAbs(barX) < 0.5;
right = mathRound(barX + barW) + xCrisp;
barX = mathRound(barX) + xCrisp;
barW = right - barX;
fromTop = mathAbs(barY) < 0.5;
bottom = mathRound(barY + barH) + yCrisp;
barY = mathRound(barY) + yCrisp;
barH = bottom - barY;
// Top and left edges are exceptions
if (fromLeft) {
barX += 1;
barW -= 1;
}
if (fromTop) {
barY -= 1;
barH += 1;
}
// Register shape type and arguments to be used in drawPoints
point.shapeType = 'rect';
point.shapeArgs = {
x: barX,
y: barY,
width: barW,
height: barH
};
});
},
getSymbol: noop,
/**
* Use a solid rectangle like the area series types
*/
drawLegendSymbol: AreaSeries.prototype.drawLegendSymbol,
/**
* Columns have no graph
*/
drawGraph: noop,
/**
* Draw the columns. For bars, the series.group is rotated, so the same coordinates
* apply for columns and bars. This method is inherited by scatter series.
*
*/
drawPoints: function () {
var series = this,
options = series.options,
renderer = series.chart.renderer,
shapeArgs;
// draw the columns
each(series.points, function (point) {
var plotY = point.plotY,
graphic = point.graphic;
if (plotY !== UNDEFINED && !isNaN(plotY) && point.y !== null) {
shapeArgs = point.shapeArgs;
if (graphic) { // update
stop(graphic);
graphic.animate(merge(shapeArgs));
} else {
point.graphic = graphic = renderer[point.shapeType](shapeArgs)
.attr(point.pointAttr[point.selected ? SELECT_STATE : NORMAL_STATE])
.add(series.group)
.shadow(options.shadow, null, options.stacking && !options.borderRadius);
}
} else if (graphic) {
point.graphic = graphic.destroy(); // #1269
}
});
},
/**
* Add tracking event listener to the series group, so the point graphics
* themselves act as trackers
*/
drawTracker: function () {
var series = this,
chart = series.chart,
pointer = chart.pointer,
cursor = series.options.cursor,
css = cursor && { cursor: cursor },
onMouseOver = function (e) {
var target = e.target,
point;
if (chart.hoverSeries !== series) {
series.onMouseOver();
}
while (target && !point) {
point = target.point;
target = target.parentNode;
}
if (point !== UNDEFINED && point !== chart.hoverPoint) { // undefined on graph in scatterchart
point.onMouseOver(e);
}
};
// Add reference to the point
each(series.points, function (point) {
if (point.graphic) {
point.graphic.element.point = point;
}
if (point.dataLabel) {
point.dataLabel.element.point = point;
}
});
// Add the event listeners, we need to do this only once
if (!series._hasTracking) {
each(series.trackerGroups, function (key) {
if (series[key]) { // we don't always have dataLabelsGroup
series[key]
.addClass(PREFIX + 'tracker')
.on('mouseover', onMouseOver)
.on('mouseout', function (e) { pointer.onTrackerMouseOut(e); })
.css(css);
if (hasTouch) {
series[key].on('touchstart', onMouseOver);
}
}
});
series._hasTracking = true;
}
},
/**
* Override the default data label alignment by adjusting for the position of the column
*/
alignDataLabel: function (point, dataLabel, options, alignTo, isNew) {
var chart = this.chart,
inverted = chart.inverted,
dlBox = point.dlBox || point.shapeArgs, // data label box for alignment
below = point.below || (point.plotY > pick(this.translatedThreshold, chart.plotSizeY)),
inside = pick(options.inside, !!this.options.stacking); // draw it inside the box?
// Align to the column itself, or the top of it
if (dlBox) { // Area range uses this method but not alignTo
alignTo = merge(dlBox);
if (inverted) {
alignTo = {
x: chart.plotWidth - alignTo.y - alignTo.height,
y: chart.plotHeight - alignTo.x - alignTo.width,
width: alignTo.height,
height: alignTo.width
};
}
// Compute the alignment box
if (!inside) {
if (inverted) {
alignTo.x += below ? 0 : alignTo.width;
alignTo.width = 0;
} else {
alignTo.y += below ? alignTo.height : 0;
alignTo.height = 0;
}
}
}
// When alignment is undefined (typically columns and bars), display the individual
// point below or above the point depending on the threshold
options.align = pick(
options.align,
!inverted || inside ? 'center' : below ? 'right' : 'left'
);
options.verticalAlign = pick(
options.verticalAlign,
inverted || inside ? 'middle' : below ? 'top' : 'bottom'
);
// Call the parent method
Series.prototype.alignDataLabel.call(this, point, dataLabel, options, alignTo, isNew);
},
/**
* Animate the column heights one by one from zero
* @param {Boolean} init Whether to initialize the animation or run it
*/
animate: function (init) {
var series = this,
yAxis = this.yAxis,
options = series.options,
inverted = this.chart.inverted,
attr = {},
translatedThreshold;
if (hasSVG) { // VML is too slow anyway
if (init) {
attr.scaleY = 0.001;
translatedThreshold = mathMin(yAxis.pos + yAxis.len, mathMax(yAxis.pos, yAxis.toPixels(options.threshold)));
if (inverted) {
attr.translateX = translatedThreshold - yAxis.len;
} else {
attr.translateY = translatedThreshold;
}
series.group.attr(attr);
} else { // run the animation
attr.scaleY = 1;
attr[inverted ? 'translateX' : 'translateY'] = yAxis.pos;
series.group.animate(attr, series.options.animation);
// delete this function to allow it only once
series.animate = null;
}
}
},
/**
* Remove this series from the chart
*/
remove: function () {
var series = this,
chart = series.chart;
// column and bar series affects other series of the same type
// as they are either stacked or grouped
if (chart.hasRendered) {
each(chart.series, function (otherSeries) {
if (otherSeries.type === series.type) {
otherSeries.isDirty = true;
}
});
}
Series.prototype.remove.apply(series, arguments);
}
});
seriesTypes.column = ColumnSeries;
/**
* Set the default options for bar
*/
defaultPlotOptions.bar = merge(defaultPlotOptions.column);
/**
* The Bar series class
*/
var BarSeries = extendClass(ColumnSeries, {
type: 'bar',
inverted: true
});
seriesTypes.bar = BarSeries;
/**
* Set the default options for scatter
*/
defaultPlotOptions.scatter = merge(defaultSeriesOptions, {
lineWidth: 0,
tooltip: {
headerFormat: '{series.name}
',
pointFormat: 'x: {point.x}
y: {point.y}
',
followPointer: true
},
stickyTracking: false
});
/**
* The scatter series class
*/
var ScatterSeries = extendClass(Series, {
type: 'scatter',
sorted: false,
requireSorting: false,
noSharedTooltip: true,
trackerGroups: ['markerGroup'],
drawTracker: ColumnSeries.prototype.drawTracker,
setTooltipPoints: noop
});
seriesTypes.scatter = ScatterSeries;
/**
* Set the default options for pie
*/
defaultPlotOptions.pie = merge(defaultSeriesOptions, {
borderColor: '#FFFFFF',
borderWidth: 1,
center: [null, null],
clip: false,
colorByPoint: true, // always true for pies
dataLabels: {
// align: null,
// connectorWidth: 1,
// connectorColor: point.color,
// connectorPadding: 5,
distance: 30,
enabled: true,
formatter: function () {
return this.point.name;
}
// softConnector: true,
//y: 0
},
ignoreHiddenPoint: true,
//innerSize: 0,
legendType: 'point',
marker: null, // point options are specified in the base options
size: null,
showInLegend: false,
slicedOffset: 10,
states: {
hover: {
brightness: 0.1,
shadow: false
}
},
stickyTracking: false,
tooltip: {
followPointer: true
}
});
/**
* Extended point object for pies
*/
var PiePoint = extendClass(Point, {
/**
* Initiate the pie slice
*/
init: function () {
Point.prototype.init.apply(this, arguments);
var point = this,
toggleSlice;
// Disallow negative values (#1530)
if (point.y < 0) {
point.y = null;
}
//visible: options.visible !== false,
extend(point, {
visible: point.visible !== false,
name: pick(point.name, 'Slice')
});
// add event listener for select
toggleSlice = function (e) {
point.slice(e.type === 'select');
};
addEvent(point, 'select', toggleSlice);
addEvent(point, 'unselect', toggleSlice);
return point;
},
/**
* Toggle the visibility of the pie slice
* @param {Boolean} vis Whether to show the slice or not. If undefined, the
* visibility is toggled
*/
setVisible: function (vis) {
var point = this,
series = point.series,
chart = series.chart,
method;
// if called without an argument, toggle visibility
point.visible = point.options.visible = vis = vis === UNDEFINED ? !point.visible : vis;
series.options.data[inArray(point, series.data)] = point.options; // update userOptions.data
method = vis ? 'show' : 'hide';
// Show and hide associated elements
each(['graphic', 'dataLabel', 'connector', 'shadowGroup'], function (key) {
if (point[key]) {
point[key][method]();
}
});
if (point.legendItem) {
chart.legend.colorizeItem(point, vis);
}
// Handle ignore hidden slices
if (!series.isDirty && series.options.ignoreHiddenPoint) {
series.isDirty = true;
chart.redraw();
}
},
/**
* Set or toggle whether the slice is cut out from the pie
* @param {Boolean} sliced When undefined, the slice state is toggled
* @param {Boolean} redraw Whether to redraw the chart. True by default.
*/
slice: function (sliced, redraw, animation) {
var point = this,
series = point.series,
chart = series.chart,
translation;
setAnimation(animation, chart);
// redraw is true by default
redraw = pick(redraw, true);
// if called without an argument, toggle
point.sliced = point.options.sliced = sliced = defined(sliced) ? sliced : !point.sliced;
series.options.data[inArray(point, series.data)] = point.options; // update userOptions.data
translation = sliced ? point.slicedTranslation : {
translateX: 0,
translateY: 0
};
point.graphic.animate(translation);
if (point.shadowGroup) {
point.shadowGroup.animate(translation);
}
}
});
/**
* The Pie series class
*/
var PieSeries = {
type: 'pie',
isCartesian: false,
pointClass: PiePoint,
requireSorting: false,
noSharedTooltip: true,
trackerGroups: ['group', 'dataLabelsGroup'],
pointAttrToOptions: { // mapping between SVG attributes and the corresponding options
stroke: 'borderColor',
'stroke-width': 'borderWidth',
fill: 'color'
},
/**
* Pies have one color each point
*/
getColor: noop,
/**
* Animate the pies in
*/
animate: function (init) {
var series = this,
points = series.points,
startAngleRad = series.startAngleRad;
if (!init) {
each(points, function (point) {
var graphic = point.graphic,
args = point.shapeArgs;
if (graphic) {
// start values
graphic.attr({
r: series.center[3] / 2, // animate from inner radius (#779)
start: startAngleRad,
end: startAngleRad
});
// animate
graphic.animate({
r: args.r,
start: args.start,
end: args.end
}, series.options.animation);
}
});
// delete this function to allow it only once
series.animate = null;
}
},
/**
* Extend the default setData method by running processData and generatePoints immediately,
* in order to access the points from the legend.
*/
setData: function (data, redraw) {
Series.prototype.setData.call(this, data, false);
this.processData();
this.generatePoints();
if (pick(redraw, true)) {
this.chart.redraw();
}
},
/**
* Extend the generatePoints method by adding total and percentage properties to each point
*/
generatePoints: function () {
var i,
total = 0,
points,
len,
point,
ignoreHiddenPoint = this.options.ignoreHiddenPoint;
Series.prototype.generatePoints.call(this);
// Populate local vars
points = this.points;
len = points.length;
// Get the total sum
for (i = 0; i < len; i++) {
point = points[i];
total += (ignoreHiddenPoint && !point.visible) ? 0 : point.y;
}
this.total = total;
// Set each point's properties
for (i = 0; i < len; i++) {
point = points[i];
point.percentage = total > 0 ? (point.y / total) * 100 : 0;
point.total = total;
}
},
/**
* Get the center of the pie based on the size and center options relative to the
* plot area. Borrowed by the polar and gauge series types.
*/
getCenter: function () {
var options = this.options,
chart = this.chart,
slicingRoom = 2 * (options.slicedOffset || 0),
handleSlicingRoom,
plotWidth = chart.plotWidth - 2 * slicingRoom,
plotHeight = chart.plotHeight - 2 * slicingRoom,
centerOption = options.center,
positions = [pick(centerOption[0], '50%'), pick(centerOption[1], '50%'), options.size || '100%', options.innerSize || 0],
smallestSize = mathMin(plotWidth, plotHeight),
isPercent;
return map(positions, function (length, i) {
isPercent = /%$/.test(length);
handleSlicingRoom = i < 2 || (i === 2 && isPercent);
return (isPercent ?
// i == 0: centerX, relative to width
// i == 1: centerY, relative to height
// i == 2: size, relative to smallestSize
// i == 4: innerSize, relative to smallestSize
[plotWidth, plotHeight, smallestSize, smallestSize][i] *
pInt(length) / 100 :
length) + (handleSlicingRoom ? slicingRoom : 0);
});
},
/**
* Do translation for pie slices
*/
translate: function (positions) {
this.generatePoints();
var series = this,
cumulative = 0,
precision = 1000, // issue #172
options = series.options,
slicedOffset = options.slicedOffset,
connectorOffset = slicedOffset + options.borderWidth,
start,
end,
angle,
startAngle = options.startAngle || 0,
startAngleRad = series.startAngleRad = mathPI / 180 * (startAngle - 90),
endAngleRad = series.endAngleRad = mathPI / 180 * ((options.endAngle || (startAngle + 360)) - 90), // docs
circ = endAngleRad - startAngleRad, //2 * mathPI,
points = series.points,
radiusX, // the x component of the radius vector for a given point
radiusY,
labelDistance = options.dataLabels.distance,
ignoreHiddenPoint = options.ignoreHiddenPoint,
i,
len = points.length,
point;
// Get positions - either an integer or a percentage string must be given.
// If positions are passed as a parameter, we're in a recursive loop for adjusting
// space for data labels.
if (!positions) {
series.center = positions = series.getCenter();
}
// utility for getting the x value from a given y, used for anticollision logic in data labels
series.getX = function (y, left) {
angle = math.asin((y - positions[1]) / (positions[2] / 2 + labelDistance));
return positions[0] +
(left ? -1 : 1) *
(mathCos(angle) * (positions[2] / 2 + labelDistance));
};
// Calculate the geometry for each point
for (i = 0; i < len; i++) {
point = points[i];
// set start and end angle
start = startAngleRad + (cumulative * circ);
if (!ignoreHiddenPoint || point.visible) {
cumulative += point.percentage / 100;
}
end = startAngleRad + (cumulative * circ);
// set the shape
point.shapeType = 'arc';
point.shapeArgs = {
x: positions[0],
y: positions[1],
r: positions[2] / 2,
innerR: positions[3] / 2,
start: mathRound(start * precision) / precision,
end: mathRound(end * precision) / precision
};
// center for the sliced out slice
angle = (end + start) / 2;
if (angle > 0.75 * circ) {
angle -= 2 * mathPI;
}
point.slicedTranslation = {
translateX: mathRound(mathCos(angle) * slicedOffset),
translateY: mathRound(mathSin(angle) * slicedOffset)
};
// set the anchor point for tooltips
radiusX = mathCos(angle) * positions[2] / 2;
radiusY = mathSin(angle) * positions[2] / 2;
point.tooltipPos = [
positions[0] + radiusX * 0.7,
positions[1] + radiusY * 0.7
];
point.half = angle < -mathPI / 2 || angle > mathPI / 2 ? 1 : 0;
point.angle = angle;
// set the anchor point for data labels
connectorOffset = mathMin(connectorOffset, labelDistance / 2); // #1678
point.labelPos = [
positions[0] + radiusX + mathCos(angle) * labelDistance, // first break of connector
positions[1] + radiusY + mathSin(angle) * labelDistance, // a/a
positions[0] + radiusX + mathCos(angle) * connectorOffset, // second break, right outside pie
positions[1] + radiusY + mathSin(angle) * connectorOffset, // a/a
positions[0] + radiusX, // landing point for connector
positions[1] + radiusY, // a/a
labelDistance < 0 ? // alignment
'center' :
point.half ? 'right' : 'left', // alignment
angle // center angle
];
}
},
setTooltipPoints: noop,
drawGraph: null,
/**
* Draw the data points
*/
drawPoints: function () {
var series = this,
chart = series.chart,
renderer = chart.renderer,
groupTranslation,
//center,
graphic,
//group,
shadow = series.options.shadow,
shadowGroup,
shapeArgs;
if (shadow && !series.shadowGroup) {
series.shadowGroup = renderer.g('shadow')
.add(series.group);
}
// draw the slices
each(series.points, function (point) {
graphic = point.graphic;
shapeArgs = point.shapeArgs;
shadowGroup = point.shadowGroup;
// put the shadow behind all points
if (shadow && !shadowGroup) {
shadowGroup = point.shadowGroup = renderer.g('shadow')
.add(series.shadowGroup);
}
// if the point is sliced, use special translation, else use plot area traslation
groupTranslation = point.sliced ? point.slicedTranslation : {
translateX: 0,
translateY: 0
};
//group.translate(groupTranslation[0], groupTranslation[1]);
if (shadowGroup) {
shadowGroup.attr(groupTranslation);
}
// draw the slice
if (graphic) {
graphic.animate(extend(shapeArgs, groupTranslation));
} else {
point.graphic = graphic = renderer.arc(shapeArgs)
.setRadialReference(series.center)
.attr(
point.pointAttr[point.selected ? SELECT_STATE : NORMAL_STATE]
)
.attr({ 'stroke-linejoin': 'round' })
.attr(groupTranslation)
.add(series.group)
.shadow(shadow, shadowGroup);
}
// detect point specific visibility
if (point.visible === false) {
point.setVisible(false);
}
});
},
/**
* Utility for sorting data labels
*/
sortByAngle: function (points, sign) {
points.sort(function (a, b) {
return a.angle !== undefined && (b.angle - a.angle) * sign;
});
},
/**
* Override the base drawDataLabels method by pie specific functionality
*/
drawDataLabels: function () {
var series = this,
data = series.data,
point,
chart = series.chart,
options = series.options.dataLabels,
connectorPadding = pick(options.connectorPadding, 10),
connectorWidth = pick(options.connectorWidth, 1),
plotWidth = chart.plotWidth,
plotHeight = chart.plotHeight,
connector,
connectorPath,
softConnector = pick(options.softConnector, true),
distanceOption = options.distance,
seriesCenter = series.center,
radius = seriesCenter[2] / 2,
centerY = seriesCenter[1],
outside = distanceOption > 0,
dataLabel,
dataLabelWidth,
labelPos,
labelHeight,
halves = [// divide the points into right and left halves for anti collision
[], // right
[] // left
],
x,
y,
visibility,
rankArr,
i,
j,
overflow = [0, 0, 0, 0], // top, right, bottom, left
sort = function (a, b) {
return b.y - a.y;
};
// get out if not enabled
if (!series.visible || (!options.enabled && !series._hasPointLabels)) {
return;
}
// run parent method
Series.prototype.drawDataLabels.apply(series);
// arrange points for detection collision
each(data, function (point) {
if (point.dataLabel) { // it may have been cancelled in the base method (#407)
halves[point.half].push(point);
}
});
// assume equal label heights
i = 0;
while (!labelHeight && data[i]) { // #1569
labelHeight = data[i] && data[i].dataLabel && (data[i].dataLabel.getBBox().height || 21); // 21 is for #968
i++;
}
/* Loop over the points in each half, starting from the top and bottom
* of the pie to detect overlapping labels.
*/
i = 2;
while (i--) {
var slots = [],
slotsLength,
usedSlots = [],
points = halves[i],
pos,
length = points.length,
slotIndex;
// Sort by angle
series.sortByAngle(points, i - 0.5);
// Only do anti-collision when we are outside the pie and have connectors (#856)
if (distanceOption > 0) {
// build the slots
for (pos = centerY - radius - distanceOption; pos <= centerY + radius + distanceOption; pos += labelHeight) {
slots.push(pos);
// visualize the slot
/*
var slotX = series.getX(pos, i) + chart.plotLeft - (i ? 100 : 0),
slotY = pos + chart.plotTop;
if (!isNaN(slotX)) {
chart.renderer.rect(slotX, slotY - 7, 100, labelHeight, 1)
.attr({
'stroke-width': 1,
stroke: 'silver'
})
.add();
chart.renderer.text('Slot '+ (slots.length - 1), slotX, slotY + 4)
.attr({
fill: 'silver'
}).add();
}
*/
}
slotsLength = slots.length;
// if there are more values than available slots, remove lowest values
if (length > slotsLength) {
// create an array for sorting and ranking the points within each quarter
rankArr = [].concat(points);
rankArr.sort(sort);
j = length;
while (j--) {
rankArr[j].rank = j;
}
j = length;
while (j--) {
if (points[j].rank >= slotsLength) {
points.splice(j, 1);
}
}
length = points.length;
}
// The label goes to the nearest open slot, but not closer to the edge than
// the label's index.
for (j = 0; j < length; j++) {
point = points[j];
labelPos = point.labelPos;
var closest = 9999,
distance,
slotI;
// find the closest slot index
for (slotI = 0; slotI < slotsLength; slotI++) {
distance = mathAbs(slots[slotI] - labelPos[1]);
if (distance < closest) {
closest = distance;
slotIndex = slotI;
}
}
// if that slot index is closer to the edges of the slots, move it
// to the closest appropriate slot
if (slotIndex < j && slots[j] !== null) { // cluster at the top
slotIndex = j;
} else if (slotsLength < length - j + slotIndex && slots[j] !== null) { // cluster at the bottom
slotIndex = slotsLength - length + j;
while (slots[slotIndex] === null) { // make sure it is not taken
slotIndex++;
}
} else {
// Slot is taken, find next free slot below. In the next run, the next slice will find the
// slot above these, because it is the closest one
while (slots[slotIndex] === null) { // make sure it is not taken
slotIndex++;
}
}
usedSlots.push({ i: slotIndex, y: slots[slotIndex] });
slots[slotIndex] = null; // mark as taken
}
// sort them in order to fill in from the top
usedSlots.sort(sort);
}
// now the used slots are sorted, fill them up sequentially
for (j = 0; j < length; j++) {
var slot, naturalY;
point = points[j];
labelPos = point.labelPos;
dataLabel = point.dataLabel;
visibility = point.visible === false ? HIDDEN : VISIBLE;
naturalY = labelPos[1];
if (distanceOption > 0) {
slot = usedSlots.pop();
slotIndex = slot.i;
// if the slot next to currrent slot is free, the y value is allowed
// to fall back to the natural position
y = slot.y;
if ((naturalY > y && slots[slotIndex + 1] !== null) ||
(naturalY < y && slots[slotIndex - 1] !== null)) {
y = naturalY;
}
} else {
y = naturalY;
}
// get the x - use the natural x position for first and last slot, to prevent the top
// and botton slice connectors from touching each other on either side
x = options.justify ?
seriesCenter[0] + (i ? -1 : 1) * (radius + distanceOption) :
series.getX(slotIndex === 0 || slotIndex === slots.length - 1 ? naturalY : y, i);
// Record the placement and visibility
dataLabel._attr = {
visibility: visibility,
align: labelPos[6]
};
dataLabel._pos = {
x: x + options.x +
({ left: connectorPadding, right: -connectorPadding }[labelPos[6]] || 0),
y: y + options.y - 10 // 10 is for the baseline (label vs text)
};
dataLabel.connX = x;
dataLabel.connY = y;
// Detect overflowing data labels
if (this.options.size === null) {
dataLabelWidth = dataLabel.width;
// Overflow left
if (x - dataLabelWidth < connectorPadding) {
overflow[3] = mathMax(mathRound(dataLabelWidth - x + connectorPadding), overflow[3]);
// Overflow right
} else if (x + dataLabelWidth > plotWidth - connectorPadding) {
overflow[1] = mathMax(mathRound(x + dataLabelWidth - plotWidth + connectorPadding), overflow[1]);
}
// Overflow top
if (y - labelHeight / 2 < 0) {
overflow[0] = mathMax(mathRound(-y + labelHeight / 2), overflow[0]);
// Overflow left
} else if (y + labelHeight / 2 > plotHeight) {
overflow[2] = mathMax(mathRound(y + labelHeight / 2 - plotHeight), overflow[2]);
}
}
} // for each point
} // for each half
// Do not apply the final placement and draw the connectors until we have verified
// that labels are not spilling over.
if (arrayMax(overflow) === 0 || this.verifyDataLabelOverflow(overflow)) {
// Place the labels in the final position
this.placeDataLabels();
// Draw the connectors
if (outside && connectorWidth) {
each(this.points, function (point) {
connector = point.connector;
labelPos = point.labelPos;
dataLabel = point.dataLabel;
if (dataLabel && dataLabel._pos) {
visibility = dataLabel._attr.visibility;
x = dataLabel.connX;
y = dataLabel.connY;
connectorPath = softConnector ? [
M,
x + (labelPos[6] === 'left' ? 5 : -5), y, // end of the string at the label
'C',
x, y, // first break, next to the label
2 * labelPos[2] - labelPos[4], 2 * labelPos[3] - labelPos[5],
labelPos[2], labelPos[3], // second break
L,
labelPos[4], labelPos[5] // base
] : [
M,
x + (labelPos[6] === 'left' ? 5 : -5), y, // end of the string at the label
L,
labelPos[2], labelPos[3], // second break
L,
labelPos[4], labelPos[5] // base
];
if (connector) {
connector.animate({ d: connectorPath });
connector.attr('visibility', visibility);
} else {
point.connector = connector = series.chart.renderer.path(connectorPath).attr({
'stroke-width': connectorWidth,
stroke: options.connectorColor || point.color || '#606060',
visibility: visibility
})
.add(series.group);
}
} else if (connector) {
point.connector = connector.destroy();
}
});
}
}
},
/**
* Verify whether the data labels are allowed to draw, or we should run more translation and data
* label positioning to keep them inside the plot area. Returns true when data labels are ready
* to draw.
*/
verifyDataLabelOverflow: function (overflow) {
var center = this.center,
options = this.options,
centerOption = options.center,
minSize = options.minSize || 80,
newSize = minSize,
ret;
// Handle horizontal size and center
if (centerOption[0] !== null) { // Fixed center
newSize = mathMax(center[2] - mathMax(overflow[1], overflow[3]), minSize);
} else { // Auto center
newSize = mathMax(
center[2] - overflow[1] - overflow[3], // horizontal overflow
minSize
);
center[0] += (overflow[3] - overflow[1]) / 2; // horizontal center
}
// Handle vertical size and center
if (centerOption[1] !== null) { // Fixed center
newSize = mathMax(mathMin(newSize, center[2] - mathMax(overflow[0], overflow[2])), minSize);
} else { // Auto center
newSize = mathMax(
mathMin(
newSize,
center[2] - overflow[0] - overflow[2] // vertical overflow
),
minSize
);
center[1] += (overflow[0] - overflow[2]) / 2; // vertical center
}
// If the size must be decreased, we need to run translate and drawDataLabels again
if (newSize < center[2]) {
center[2] = newSize;
this.translate(center);
each(this.points, function (point) {
if (point.dataLabel) {
point.dataLabel._pos = null; // reset
}
});
this.drawDataLabels();
// Else, return true to indicate that the pie and its labels is within the plot area
} else {
ret = true;
}
return ret;
},
/**
* Perform the final placement of the data labels after we have verified that they
* fall within the plot area.
*/
placeDataLabels: function () {
each(this.points, function (point) {
var dataLabel = point.dataLabel,
_pos;
if (dataLabel) {
_pos = dataLabel._pos;
if (_pos) {
dataLabel.attr(dataLabel._attr);
dataLabel[dataLabel.moved ? 'animate' : 'attr'](_pos);
dataLabel.moved = true;
} else if (dataLabel) {
dataLabel.attr({ y: -999 });
}
}
});
},
alignDataLabel: noop,
/**
* Draw point specific tracker objects. Inherit directly from column series.
*/
drawTracker: ColumnSeries.prototype.drawTracker,
/**
* Use a simple symbol from column prototype
*/
drawLegendSymbol: AreaSeries.prototype.drawLegendSymbol,
/**
* Pies don't have point marker symbols
*/
getSymbol: noop
};
PieSeries = extendClass(Series, PieSeries);
seriesTypes.pie = PieSeries;
// global variables
extend(Highcharts, {
// Constructors
Axis: Axis,
Chart: Chart,
Color: Color,
Legend: Legend,
Pointer: Pointer,
Point: Point,
Tick: Tick,
Tooltip: Tooltip,
Renderer: Renderer,
Series: Series,
SVGElement: SVGElement,
SVGRenderer: SVGRenderer,
// Various
arrayMin: arrayMin,
arrayMax: arrayMax,
charts: charts,
dateFormat: dateFormat,
format: format,
pathAnim: pathAnim,
getOptions: getOptions,
hasBidiBug: hasBidiBug,
isTouchDevice: isTouchDevice,
numberFormat: numberFormat,
seriesTypes: seriesTypes,
setOptions: setOptions,
addEvent: addEvent,
removeEvent: removeEvent,
createElement: createElement,
discardElement: discardElement,
css: css,
each: each,
extend: extend,
map: map,
merge: merge,
pick: pick,
splat: splat,
extendClass: extendClass,
pInt: pInt,
wrap: wrap,
svg: hasSVG,
canvas: useCanVG,
vml: !hasSVG && !useCanVG,
product: PRODUCT,
version: VERSION
});
}());
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