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META-INF.assets.rjzjh.zrender.vml.graphic.js Maven / Gradle / Ivy
// http://www.w3.org/TR/NOTE-VML
// TODO Use proxy like svg instead of overwrite brush methods
define(function (require) {
if (!require('../core/env').canvasSupported) {
var vec2 = require('../core/vector');
var BoundingRect = require('../core/BoundingRect');
var CMD = require('../core/PathProxy').CMD;
var colorTool = require('../tool/color');
var textContain = require('../contain/text');
var RectText = require('../graphic/mixin/RectText');
var Displayable = require('../graphic/Displayable');
var ZImage = require('../graphic/Image');
var Text = require('../graphic/Text');
var Path = require('../graphic/Path');
var Gradient = require('../graphic/Gradient');
var vmlCore = require('./core');
var round = Math.round;
var sqrt = Math.sqrt;
var abs = Math.abs;
var cos = Math.cos;
var sin = Math.sin;
var mathMax = Math.max;
var applyTransform = vec2.applyTransform;
var comma = ',';
var imageTransformPrefix = 'progid:DXImageTransform.Microsoft';
var Z = 21600;
var Z2 = Z / 2;
var ZLEVEL_BASE = 100000;
var Z_BASE = 1000;
var initRootElStyle = function (el) {
el.style.cssText = 'position:absolute;left:0;top:0;width:1px;height:1px;';
el.coordsize = Z + ',' + Z;
el.coordorigin = '0,0';
};
var encodeHtmlAttribute = function (s) {
return String(s).replace(/&/g, '&').replace(/"/g, '"');
};
var rgb2Str = function (r, g, b) {
return 'rgb(' + [r, g, b].join(',') + ')';
};
var append = function (parent, child) {
if (child && parent && child.parentNode !== parent) {
parent.appendChild(child);
}
};
var remove = function (parent, child) {
if (child && parent && child.parentNode === parent) {
parent.removeChild(child);
}
};
var getZIndex = function (zlevel, z, z2) {
// z 的取值范围为 [0, 1000]
return (parseFloat(zlevel) || 0) * ZLEVEL_BASE + (parseFloat(z) || 0) * Z_BASE + z2;
};
var parsePercent = function (value, maxValue) {
if (typeof value === 'string') {
if (value.lastIndexOf('%') >= 0) {
return parseFloat(value) / 100 * maxValue;
}
return parseFloat(value);
}
return value;
};
/***************************************************
* PATH
**************************************************/
var setColorAndOpacity = function (el, color, opacity) {
var colorArr = colorTool.parse(color);
opacity = +opacity;
if (isNaN(opacity)) {
opacity = 1;
}
if (colorArr) {
el.color = rgb2Str(colorArr[0], colorArr[1], colorArr[2]);
el.opacity = opacity * colorArr[3];
}
};
var getColorAndAlpha = function (color) {
var colorArr = colorTool.parse(color);
return [
rgb2Str(colorArr[0], colorArr[1], colorArr[2]),
colorArr[3]
];
};
var updateFillNode = function (el, style, zrEl) {
// TODO pattern
var fill = style.fill;
if (fill != null) {
// Modified from excanvas
if (fill instanceof Gradient) {
var gradientType;
var angle = 0;
var focus = [0, 0];
// additional offset
var shift = 0;
// scale factor for offset
var expansion = 1;
var rect = zrEl.getBoundingRect();
var rectWidth = rect.width;
var rectHeight = rect.height;
if (fill.type === 'linear') {
gradientType = 'gradient';
var transform = zrEl.transform;
var p0 = [fill.x * rectWidth, fill.y * rectHeight];
var p1 = [fill.x2 * rectWidth, fill.y2 * rectHeight];
if (transform) {
applyTransform(p0, p0, transform);
applyTransform(p1, p1, transform);
}
var dx = p1[0] - p0[0];
var dy = p1[1] - p0[1];
angle = Math.atan2(dx, dy) * 180 / Math.PI;
// The angle should be a non-negative number.
if (angle < 0) {
angle += 360;
}
// Very small angles produce an unexpected result because they are
// converted to a scientific notation string.
if (angle < 1e-6) {
angle = 0;
}
}
else {
gradientType = 'gradientradial';
var p0 = [fill.x * rectWidth, fill.y * rectHeight];
var transform = zrEl.transform;
var scale = zrEl.scale;
var width = rectWidth;
var height = rectHeight;
focus = [
// Percent in bounding rect
(p0[0] - rect.x) / width,
(p0[1] - rect.y) / height
];
if (transform) {
applyTransform(p0, p0, transform);
}
width /= scale[0] * Z;
height /= scale[1] * Z;
var dimension = mathMax(width, height);
shift = 2 * 0 / dimension;
expansion = 2 * fill.r / dimension - shift;
}
// We need to sort the color stops in ascending order by offset,
// otherwise IE won't interpret it correctly.
var stops = fill.colorStops.slice();
stops.sort(function(cs1, cs2) {
return cs1.offset - cs2.offset;
});
var length = stops.length;
// Color and alpha list of first and last stop
var colorAndAlphaList = [];
var colors = [];
for (var i = 0; i < length; i++) {
var stop = stops[i];
var colorAndAlpha = getColorAndAlpha(stop.color);
colors.push(stop.offset * expansion + shift + ' ' + colorAndAlpha[0]);
if (i === 0 || i === length - 1) {
colorAndAlphaList.push(colorAndAlpha);
}
}
if (length >= 2) {
var color1 = colorAndAlphaList[0][0];
var color2 = colorAndAlphaList[1][0];
var opacity1 = colorAndAlphaList[0][1] * style.opacity;
var opacity2 = colorAndAlphaList[1][1] * style.opacity;
el.type = gradientType;
el.method = 'none';
el.focus = '100%';
el.angle = angle;
el.color = color1;
el.color2 = color2;
el.colors = colors.join(',');
// When colors attribute is used, the meanings of opacity and o:opacity2
// are reversed.
el.opacity = opacity2;
// FIXME g_o_:opacity ?
el.opacity2 = opacity1;
}
if (gradientType === 'radial') {
el.focusposition = focus.join(',');
}
}
else {
// FIXME Change from Gradient fill to color fill
setColorAndOpacity(el, fill, style.opacity);
}
}
};
var updateStrokeNode = function (el, style) {
if (style.lineJoin != null) {
el.joinstyle = style.lineJoin;
}
if (style.miterLimit != null) {
el.miterlimit = style.miterLimit * Z;
}
if (style.lineCap != null) {
el.endcap = style.lineCap;
}
if (style.lineDash != null) {
el.dashstyle = style.lineDash.join(' ');
}
if (style.stroke != null && !(style.stroke instanceof Gradient)) {
setColorAndOpacity(el, style.stroke, style.opacity);
}
};
var updateFillAndStroke = function (vmlEl, type, style, zrEl) {
var isFill = type == 'fill';
var el = vmlEl.getElementsByTagName(type)[0];
// Stroke must have lineWidth
if (style[type] != null && style[type] !== 'none' && (isFill || (!isFill && style.lineWidth))) {
vmlEl[isFill ? 'filled' : 'stroked'] = 'true';
// FIXME Remove before updating, or set `colors` will throw error
if (style[type] instanceof Gradient) {
remove(vmlEl, el);
}
if (!el) {
el = vmlCore.createNode(type);
}
isFill ? updateFillNode(el, style, zrEl) : updateStrokeNode(el, style);
append(vmlEl, el);
}
else {
vmlEl[isFill ? 'filled' : 'stroked'] = 'false';
remove(vmlEl, el);
}
};
var points = [[], [], []];
var pathDataToString = function (data, m) {
var M = CMD.M;
var C = CMD.C;
var L = CMD.L;
var A = CMD.A;
var Q = CMD.Q;
var str = [];
var nPoint;
var cmdStr;
var cmd;
var i;
var xi;
var yi;
for (i = 0; i < data.length;) {
cmd = data[i++];
cmdStr = '';
nPoint = 0;
switch (cmd) {
case M:
cmdStr = ' m ';
nPoint = 1;
xi = data[i++];
yi = data[i++];
points[0][0] = xi;
points[0][1] = yi;
break;
case L:
cmdStr = ' l ';
nPoint = 1;
xi = data[i++];
yi = data[i++];
points[0][0] = xi;
points[0][1] = yi;
break;
case Q:
case C:
cmdStr = ' c ';
nPoint = 3;
var x1 = data[i++];
var y1 = data[i++];
var x2 = data[i++];
var y2 = data[i++];
var x3;
var y3;
if (cmd === Q) {
// Convert quadratic to cubic using degree elevation
x3 = x2;
y3 = y2;
x2 = (x2 + 2 * x1) / 3;
y2 = (y2 + 2 * y1) / 3;
x1 = (xi + 2 * x1) / 3;
y1 = (yi + 2 * y1) / 3;
}
else {
x3 = data[i++];
y3 = data[i++];
}
points[0][0] = x1;
points[0][1] = y1;
points[1][0] = x2;
points[1][1] = y2;
points[2][0] = x3;
points[2][1] = y3;
xi = x3;
yi = y3;
break;
case A:
var x = 0;
var y = 0;
var sx = 1;
var sy = 1;
var angle = 0;
if (m) {
// Extract SRT from matrix
x = m[4];
y = m[5];
sx = sqrt(m[0] * m[0] + m[1] * m[1]);
sy = sqrt(m[2] * m[2] + m[3] * m[3]);
angle = Math.atan2(-m[1] / sy, m[0] / sx);
}
var cx = data[i++];
var cy = data[i++];
var rx = data[i++];
var ry = data[i++];
var startAngle = data[i++] + angle;
var endAngle = data[i++] + startAngle + angle;
// FIXME
// var psi = data[i++];
i++;
var clockwise = data[i++];
var x0 = cx + cos(startAngle) * rx;
var y0 = cy + sin(startAngle) * ry;
var x1 = cx + cos(endAngle) * rx;
var y1 = cy + sin(endAngle) * ry;
var type = clockwise ? ' wa ' : ' at ';
if (Math.abs(x0 - x1) < 1e-10) {
// IE won't render arches drawn counter clockwise if x0 == x1.
if (Math.abs(endAngle - startAngle) > 1e-2) {
// Offset x0 by 1/80 of a pixel. Use something
// that can be represented in binary
if (clockwise) {
x0 += 270 / Z;
}
}
else {
// Avoid case draw full circle
if (Math.abs(y0 - cy) < 1e-10) {
if ((clockwise && x0 < cx) || (!clockwise && x0 > cx)) {
y1 -= 270 / Z;
}
else {
y1 += 270 / Z;
}
}
else if ((clockwise && y0 < cy) || (!clockwise && y0 > cy)) {
x1 += 270 / Z;
}
else {
x1 -= 270 / Z;
}
}
}
str.push(
type,
round(((cx - rx) * sx + x) * Z - Z2), comma,
round(((cy - ry) * sy + y) * Z - Z2), comma,
round(((cx + rx) * sx + x) * Z - Z2), comma,
round(((cy + ry) * sy + y) * Z - Z2), comma,
round((x0 * sx + x) * Z - Z2), comma,
round((y0 * sy + y) * Z - Z2), comma,
round((x1 * sx + x) * Z - Z2), comma,
round((y1 * sy + y) * Z - Z2)
);
xi = x1;
yi = y1;
break;
case CMD.R:
var p0 = points[0];
var p1 = points[1];
// x0, y0
p0[0] = data[i++];
p0[1] = data[i++];
// x1, y1
p1[0] = p0[0] + data[i++];
p1[1] = p0[1] + data[i++];
if (m) {
applyTransform(p0, p0, m);
applyTransform(p1, p1, m);
}
p0[0] = round(p0[0] * Z - Z2);
p1[0] = round(p1[0] * Z - Z2);
p0[1] = round(p0[1] * Z - Z2);
p1[1] = round(p1[1] * Z - Z2);
str.push(
// x0, y0
' m ', p0[0], comma, p0[1],
// x1, y0
' l ', p1[0], comma, p0[1],
// x1, y1
' l ', p1[0], comma, p1[1],
// x0, y1
' l ', p0[0], comma, p1[1]
);
break;
case CMD.Z:
// FIXME Update xi, yi
str.push(' x ');
}
if (nPoint > 0) {
str.push(cmdStr);
for (var k = 0; k < nPoint; k++) {
var p = points[k];
m && applyTransform(p, p, m);
// 不 round 会非常慢
str.push(
round(p[0] * Z - Z2), comma, round(p[1] * Z - Z2),
k < nPoint - 1 ? comma : ''
);
}
}
}
return str.join('');
};
// Rewrite the original path method
Path.prototype.brushVML = function (vmlRoot) {
var style = this.style;
var vmlEl = this._vmlEl;
if (!vmlEl) {
vmlEl = vmlCore.createNode('shape');
initRootElStyle(vmlEl);
this._vmlEl = vmlEl;
}
updateFillAndStroke(vmlEl, 'fill', style, this);
updateFillAndStroke(vmlEl, 'stroke', style, this);
var m = this.transform;
var needTransform = m != null;
var strokeEl = vmlEl.getElementsByTagName('stroke')[0];
if (strokeEl) {
var lineWidth = style.lineWidth;
// Get the line scale.
// Determinant of this.m_ means how much the area is enlarged by the
// transformation. So its square root can be used as a scale factor
// for width.
if (needTransform && !style.strokeNoScale) {
var det = m[0] * m[3] - m[1] * m[2];
lineWidth *= sqrt(abs(det));
}
strokeEl.weight = lineWidth + 'px';
}
var path = this.path;
if (this.__dirtyPath) {
path.beginPath();
this.buildPath(path, this.shape);
path.toStatic();
this.__dirtyPath = false;
}
vmlEl.path = pathDataToString(path.data, this.transform);
vmlEl.style.zIndex = getZIndex(this.zlevel, this.z, this.z2);
// Append to root
append(vmlRoot, vmlEl);
// Text
if (style.text) {
this.drawRectText(vmlRoot, this.getBoundingRect());
}
else {
this.removeRectText(vmlRoot);
}
};
Path.prototype.onRemove = function (vmlRoot) {
remove(vmlRoot, this._vmlEl);
this.removeRectText(vmlRoot);
};
Path.prototype.onAdd = function (vmlRoot) {
append(vmlRoot, this._vmlEl);
this.appendRectText(vmlRoot);
};
/***************************************************
* IMAGE
**************************************************/
var isImage = function (img) {
// FIXME img instanceof Image 如果 img 是一个字符串的时候，IE8 下会报错
return (typeof img === 'object') && img.tagName && img.tagName.toUpperCase() === 'IMG';
// return img instanceof Image;
};
// Rewrite the original path method
ZImage.prototype.brushVML = function (vmlRoot) {
var style = this.style;
var image = style.image;
// Image original width, height
var ow;
var oh;
if (isImage(image)) {
var src = image.src;
if (src === this._imageSrc) {
ow = this._imageWidth;
oh = this._imageHeight;
}
else {
var imageRuntimeStyle = image.runtimeStyle;
var oldRuntimeWidth = imageRuntimeStyle.width;
var oldRuntimeHeight = imageRuntimeStyle.height;
imageRuntimeStyle.width = 'auto';
imageRuntimeStyle.height = 'auto';
// get the original size
ow = image.width;
oh = image.height;
// and remove overides
imageRuntimeStyle.width = oldRuntimeWidth;
imageRuntimeStyle.height = oldRuntimeHeight;
// Caching image original width, height and src
this._imageSrc = src;
this._imageWidth = ow;
this._imageHeight = oh;
}
image = src;
}
else {
if (image === this._imageSrc) {
ow = this._imageWidth;
oh = this._imageHeight;
}
}
if (!image) {
return;
}
var x = style.x || 0;
var y = style.y || 0;
var dw = style.width;
var dh = style.height;
var sw = style.sWidth;
var sh = style.sHeight;
var sx = style.sx || 0;
var sy = style.sy || 0;
var hasCrop = sw && sh;
var vmlEl = this._vmlEl;
if (!vmlEl) {
// FIXME 使用 group 在 left, top 都不是 0 的时候就无法显示了。
// vmlEl = vmlCore.createNode('group');
vmlEl = vmlCore.doc.createElement('div');
initRootElStyle(vmlEl);
this._vmlEl = vmlEl;
}
var vmlElStyle = vmlEl.style;
var hasRotation = false;
var m;
var scaleX = 1;
var scaleY = 1;
if (this.transform) {
m = this.transform;
scaleX = sqrt(m[0] * m[0] + m[1] * m[1]);
scaleY = sqrt(m[2] * m[2] + m[3] * m[3]);
hasRotation = m[1] || m[2];
}
if (hasRotation) {
// If filters are necessary (rotation exists), create them
// filters are bog-slow, so only create them if abbsolutely necessary
// The following check doesn't account for skews (which don't exist
// in the canvas spec (yet) anyway.
// From excanvas
var p0 = [x, y];
var p1 = [x + dw, y];
var p2 = [x, y + dh];
var p3 = [x + dw, y + dh];
applyTransform(p0, p0, m);
applyTransform(p1, p1, m);
applyTransform(p2, p2, m);
applyTransform(p3, p3, m);
var maxX = mathMax(p0[0], p1[0], p2[0], p3[0]);
var maxY = mathMax(p0[1], p1[1], p2[1], p3[1]);
var transformFilter = [];
transformFilter.push('M11=', m[0] / scaleX, comma,
'M12=', m[2] / scaleY, comma,
'M21=', m[1] / scaleX, comma,
'M22=', m[3] / scaleY, comma,
'Dx=', round(x * scaleX + m[4]), comma,
'Dy=', round(y * scaleY + m[5]));
vmlElStyle.padding = '0 ' + round(maxX) + 'px ' + round(maxY) + 'px 0';
// FIXME DXImageTransform 在 IE11 的兼容模式下不起作用
vmlElStyle.filter = imageTransformPrefix + '.Matrix('
+ transformFilter.join('') + ', SizingMethod=clip)';
}
else {
if (m) {
x = x * scaleX + m[4];
y = y * scaleY + m[5];
}
vmlElStyle.filter = '';
vmlElStyle.left = round(x) + 'px';
vmlElStyle.top = round(y) + 'px';
}
var imageEl = this._imageEl;
var cropEl = this._cropEl;
if (!imageEl) {
imageEl = vmlCore.doc.createElement('div');
this._imageEl = imageEl;
}
var imageELStyle = imageEl.style;
if (hasCrop) {
// Needs know image original width and height
if (! (ow && oh)) {
var tmpImage = new Image();
var self = this;
tmpImage.onload = function () {
tmpImage.onload = null;
ow = tmpImage.width;
oh = tmpImage.height;
// Adjust image width and height to fit the ratio destinationSize / sourceSize
imageELStyle.width = round(scaleX * ow * dw / sw) + 'px';
imageELStyle.height = round(scaleY * oh * dh / sh) + 'px';
// Caching image original width, height and src
self._imageWidth = ow;
self._imageHeight = oh;
self._imageSrc = image;
};
tmpImage.src = image;
}
else {
imageELStyle.width = round(scaleX * ow * dw / sw) + 'px';
imageELStyle.height = round(scaleY * oh * dh / sh) + 'px';
}
if (! cropEl) {
cropEl = vmlCore.doc.createElement('div');
cropEl.style.overflow = 'hidden';
this._cropEl = cropEl;
}
var cropElStyle = cropEl.style;
cropElStyle.width = round((dw + sx * dw / sw) * scaleX);
cropElStyle.height = round((dh + sy * dh / sh) * scaleY);
cropElStyle.filter = imageTransformPrefix + '.Matrix(Dx='
+ (-sx * dw / sw * scaleX) + ',Dy=' + (-sy * dh / sh * scaleY) + ')';
if (! cropEl.parentNode) {
vmlEl.appendChild(cropEl);
}
if (imageEl.parentNode != cropEl) {
cropEl.appendChild(imageEl);
}
}
else {
imageELStyle.width = round(scaleX * dw) + 'px';
imageELStyle.height = round(scaleY * dh) + 'px';
vmlEl.appendChild(imageEl);
if (cropEl && cropEl.parentNode) {
vmlEl.removeChild(cropEl);
this._cropEl = null;
}
}
var filterStr = '';
var alpha = style.opacity;
if (alpha < 1) {
filterStr += '.Alpha(opacity=' + round(alpha * 100) + ') ';
}
filterStr += imageTransformPrefix + '.AlphaImageLoader(src=' + image + ', SizingMethod=scale)';
imageELStyle.filter = filterStr;
vmlEl.style.zIndex = getZIndex(this.zlevel, this.z, this.z2);
// Append to root
append(vmlRoot, vmlEl);
// Text
if (style.text) {
this.drawRectText(vmlRoot, this.getBoundingRect());
}
};
ZImage.prototype.onRemove = function (vmlRoot) {
remove(vmlRoot, this._vmlEl);
this._vmlEl = null;
this._cropEl = null;
this._imageEl = null;
this.removeRectText(vmlRoot);
};
ZImage.prototype.onAdd = function (vmlRoot) {
append(vmlRoot, this._vmlEl);
this.appendRectText(vmlRoot);
};
/***************************************************
* TEXT
**************************************************/
var DEFAULT_STYLE_NORMAL = 'normal';
var fontStyleCache = {};
var fontStyleCacheCount = 0;
var MAX_FONT_CACHE_SIZE = 100;
var fontEl = document.createElement('div');
var getFontStyle = function (fontString) {
var fontStyle = fontStyleCache[fontString];
if (!fontStyle) {
// Clear cache
if (fontStyleCacheCount > MAX_FONT_CACHE_SIZE) {
fontStyleCacheCount = 0;
fontStyleCache = {};
}
var style = fontEl.style;
var fontFamily;
try {
style.font = fontString;
fontFamily = style.fontFamily.split(',')[0];
}
catch (e) {
}
fontStyle = {
style: style.fontStyle || DEFAULT_STYLE_NORMAL,
variant: style.fontVariant || DEFAULT_STYLE_NORMAL,
weight: style.fontWeight || DEFAULT_STYLE_NORMAL,
size: parseFloat(style.fontSize || 12) | 0,
family: fontFamily || 'Microsoft YaHei'
};
fontStyleCache[fontString] = fontStyle;
fontStyleCacheCount++;
}
return fontStyle;
};
var textMeasureEl;
// Overwrite measure text method
textContain.measureText = function (text, textFont) {
var doc = vmlCore.doc;
if (!textMeasureEl) {
textMeasureEl = doc.createElement('div');
textMeasureEl.style.cssText = 'position:absolute;top:-20000px;left:0;'
+ 'padding:0;margin:0;border:none;white-space:pre;';
vmlCore.doc.body.appendChild(textMeasureEl);
}
try {
textMeasureEl.style.font = textFont;
} catch (ex) {
// Ignore failures to set to invalid font.
}
textMeasureEl.innerHTML = '';
// Don't use innerHTML or innerText because they allow markup/whitespace.
textMeasureEl.appendChild(doc.createTextNode(text));
return {
width: textMeasureEl.offsetWidth
};
};
var tmpRect = new BoundingRect();
var drawRectText = function (vmlRoot, rect, textRect, fromTextEl) {
var style = this.style;
var text = style.text;
if (!text) {
return;
}
var x;
var y;
var align = style.textAlign;
var fontStyle = getFontStyle(style.textFont);
// FIXME encodeHtmlAttribute ?
var font = fontStyle.style + ' ' + fontStyle.variant + ' ' + fontStyle.weight + ' '
+ fontStyle.size + 'px "' + fontStyle.family + '"';
var baseline = style.textBaseline;
var verticalAlign = style.textVerticalAlign;
textRect = textRect || textContain.getBoundingRect(text, font, align, baseline);
// Transform rect to view space
var m = this.transform;
// Ignore transform for text in other element
if (m && !fromTextEl) {
tmpRect.copy(rect);
tmpRect.applyTransform(m);
rect = tmpRect;
}
if (!fromTextEl) {
var textPosition = style.textPosition;
var distance = style.textDistance;
// Text position represented by coord
if (textPosition instanceof Array) {
x = rect.x + parsePercent(textPosition[0], rect.width);
y = rect.y + parsePercent(textPosition[1], rect.height);
align = align || 'left';
baseline = baseline || 'top';
}
else {
var res = textContain.adjustTextPositionOnRect(
textPosition, rect, textRect, distance
);
x = res.x;
y = res.y;
// Default align and baseline when has textPosition
align = align || res.textAlign;
baseline = baseline || res.textBaseline;
}
}
else {
x = rect.x;
y = rect.y;
}
if (verticalAlign) {
switch (verticalAlign) {
case 'middle':
y -= textRect.height / 2;
break;
case 'bottom':
y -= textRect.height;
break;
// 'top'
}
// Ignore baseline
baseline = 'top';
}
var fontSize = fontStyle.size;
// 1.75 is an arbitrary number, as there is no info about the text baseline
switch (baseline) {
case 'hanging':
case 'top':
y += fontSize / 1.75;
break;
case 'middle':
break;
default:
// case null:
// case 'alphabetic':
// case 'ideographic':
// case 'bottom':
y -= fontSize / 2.25;
break;
}
switch (align) {
case 'left':
break;
case 'center':
x -= textRect.width / 2;
break;
case 'right':
x -= textRect.width;
break;
// case 'end':
// align = elementStyle.direction == 'ltr' ? 'right' : 'left';
// break;
// case 'start':
// align = elementStyle.direction == 'rtl' ? 'right' : 'left';
// break;
// default:
// align = 'left';
}
var createNode = vmlCore.createNode;
var textVmlEl = this._textVmlEl;
var pathEl;
var textPathEl;
var skewEl;
if (!textVmlEl) {
textVmlEl = createNode('line');
pathEl = createNode('path');
textPathEl = createNode('textpath');
skewEl = createNode('skew');
// FIXME Why here is not cammel case
// Align 'center' seems wrong
textPathEl.style['v-text-align'] = 'left';
initRootElStyle(textVmlEl);
pathEl.textpathok = true;
textPathEl.on = true;
textVmlEl.from = '0 0';
textVmlEl.to = '1000 0.05';
append(textVmlEl, skewEl);
append(textVmlEl, pathEl);
append(textVmlEl, textPathEl);
this._textVmlEl = textVmlEl;
}
else {
// 这里是在前面 appendChild 保证顺序的前提下
skewEl = textVmlEl.firstChild;
pathEl = skewEl.nextSibling;
textPathEl = pathEl.nextSibling;
}
var coords = [x, y];
var textVmlElStyle = textVmlEl.style;
// Ignore transform for text in other element
if (m && fromTextEl) {
applyTransform(coords, coords, m);
skewEl.on = true;
skewEl.matrix = m[0].toFixed(3) + comma + m[2].toFixed(3) + comma +
m[1].toFixed(3) + comma + m[3].toFixed(3) + ',0,0';
// Text position
skewEl.offset = (round(coords[0]) || 0) + ',' + (round(coords[1]) || 0);
// Left top point as origin
skewEl.origin = '0 0';
textVmlElStyle.left = '0px';
textVmlElStyle.top = '0px';
}
else {
skewEl.on = false;
textVmlElStyle.left = round(x) + 'px';
textVmlElStyle.top = round(y) + 'px';
}
textPathEl.string = encodeHtmlAttribute(text);
// TODO
try {
textPathEl.style.font = font;
}
// Error font format
catch (e) {}
updateFillAndStroke(textVmlEl, 'fill', {
fill: fromTextEl ? style.fill : style.textFill,
opacity: style.opacity
}, this);
updateFillAndStroke(textVmlEl, 'stroke', {
stroke: fromTextEl ? style.stroke : style.textStroke,
opacity: style.opacity,
lineDash: style.lineDash
}, this);
textVmlEl.style.zIndex = getZIndex(this.zlevel, this.z, this.z2);
// Attached to root
append(vmlRoot, textVmlEl);
};
var removeRectText = function (vmlRoot) {
remove(vmlRoot, this._textVmlEl);
this._textVmlEl = null;
};
var appendRectText = function (vmlRoot) {
append(vmlRoot, this._textVmlEl);
};
var list = [RectText, Displayable, ZImage, Path, Text];
// In case Displayable has been mixed in RectText
for (var i = 0; i < list.length; i++) {
var proto = list[i].prototype;
proto.drawRectText = drawRectText;
proto.removeRectText = removeRectText;
proto.appendRectText = appendRectText;
}
Text.prototype.brushVML = function (vmlRoot) {
var style = this.style;
if (style.text) {
this.drawRectText(vmlRoot, {
x: style.x || 0, y: style.y || 0,
width: 0, height: 0
}, this.getBoundingRect(), true);
}
else {
this.removeRectText(vmlRoot);
}
};
Text.prototype.onRemove = function (vmlRoot) {
this.removeRectText(vmlRoot);
};
Text.prototype.onAdd = function (vmlRoot) {
this.appendRectText(vmlRoot);
};
}
});
