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define(function (require) {
var VisualMapping = require('../../visual/VisualMapping');
var zrColor = require('zrender/tool/color');
var zrUtil = require('zrender/core/util');
var isArray = zrUtil.isArray;
var ITEM_STYLE_NORMAL = 'itemStyle.normal';
return function (ecModel, api, payload) {
var condition = {mainType: 'series', subType: 'treemap', query: payload};
ecModel.eachComponent(condition, function (seriesModel) {
var tree = seriesModel.getData().tree;
var root = tree.root;
var seriesItemStyleModel = seriesModel.getModel(ITEM_STYLE_NORMAL);
if (root.isRemoved()) {
return;
}
var levelItemStyles = zrUtil.map(tree.levelModels, function (levelModel) {
return levelModel ? levelModel.get(ITEM_STYLE_NORMAL) : null;
});
travelTree(
root, // Visual should calculate from tree root but not view root.
{},
levelItemStyles,
seriesItemStyleModel,
seriesModel.getViewRoot().getAncestors(),
seriesModel
);
});
};
function travelTree(
node, designatedVisual, levelItemStyles, seriesItemStyleModel,
viewRootAncestors, seriesModel
) {
var nodeModel = node.getModel();
var nodeLayout = node.getLayout();
// Optimize
if (!nodeLayout || nodeLayout.invisible || !nodeLayout.isInView) {
return;
}
var nodeItemStyleModel = node.getModel(ITEM_STYLE_NORMAL);
var levelItemStyle = levelItemStyles[node.depth];
var visuals = buildVisuals(
nodeItemStyleModel, designatedVisual, levelItemStyle, seriesItemStyleModel
);
// calculate border color
var borderColor = nodeItemStyleModel.get('borderColor');
var borderColorSaturation = nodeItemStyleModel.get('borderColorSaturation');
var thisNodeColor;
if (borderColorSaturation != null) {
// For performance, do not always execute 'calculateColor'.
thisNodeColor = calculateColor(visuals, node);
borderColor = calculateBorderColor(borderColorSaturation, thisNodeColor);
}
node.setVisual('borderColor', borderColor);
var viewChildren = node.viewChildren;
if (!viewChildren || !viewChildren.length) {
thisNodeColor = calculateColor(visuals, node);
// Apply visual to this node.
node.setVisual('color', thisNodeColor);
}
else {
var mapping = buildVisualMapping(
node, nodeModel, nodeLayout, nodeItemStyleModel, visuals, viewChildren
);
// Designate visual to children.
zrUtil.each(viewChildren, function (child, index) {
// If higher than viewRoot, only ancestors of viewRoot is needed to visit.
if (child.depth >= viewRootAncestors.length
|| child === viewRootAncestors[child.depth]
) {
var childVisual = mapVisual(
nodeModel, visuals, child, index, mapping, seriesModel
);
travelTree(
child, childVisual, levelItemStyles, seriesItemStyleModel,
viewRootAncestors, seriesModel
);
}
});
}
}
function buildVisuals(
nodeItemStyleModel, designatedVisual, levelItemStyle, seriesItemStyleModel
) {
var visuals = zrUtil.extend({}, designatedVisual);
zrUtil.each(['color', 'colorAlpha', 'colorSaturation'], function (visualName) {
// Priority: thisNode > thisLevel > parentNodeDesignated > seriesModel
var val = nodeItemStyleModel.get(visualName, true); // Ignore parent
val == null && levelItemStyle && (val = levelItemStyle[visualName]);
val == null && (val = designatedVisual[visualName]);
val == null && (val = seriesItemStyleModel.get(visualName));
val != null && (visuals[visualName] = val);
});
return visuals;
}
function calculateColor(visuals) {
var color = getValueVisualDefine(visuals, 'color');
if (color) {
var colorAlpha = getValueVisualDefine(visuals, 'colorAlpha');
var colorSaturation = getValueVisualDefine(visuals, 'colorSaturation');
if (colorSaturation) {
color = zrColor.modifyHSL(color, null, null, colorSaturation);
}
if (colorAlpha) {
color = zrColor.modifyAlpha(color, colorAlpha);
}
return color;
}
}
function calculateBorderColor(borderColorSaturation, thisNodeColor) {
return thisNodeColor != null
? zrColor.modifyHSL(thisNodeColor, null, null, borderColorSaturation)
: null;
}
function getValueVisualDefine(visuals, name) {
var value = visuals[name];
if (value != null && value !== 'none') {
return value;
}
}
function buildVisualMapping(
node, nodeModel, nodeLayout, nodeItemStyleModel, visuals, viewChildren
) {
if (!viewChildren || !viewChildren.length) {
return;
}
var rangeVisual = getRangeVisual(nodeModel, 'color')
|| (
visuals.color != null
&& visuals.color !== 'none'
&& (
getRangeVisual(nodeModel, 'colorAlpha')
|| getRangeVisual(nodeModel, 'colorSaturation')
)
);
if (!rangeVisual) {
return;
}
var colorMappingBy = nodeModel.get('colorMappingBy');
var opt = {
type: rangeVisual.name,
dataExtent: nodeLayout.dataExtent,
visual: rangeVisual.range
};
if (opt.type === 'color'
&& (colorMappingBy === 'index' || colorMappingBy === 'id')
) {
opt.mappingMethod = 'category';
opt.loop = true;
// categories is ordinal, so do not set opt.categories.
}
else {
opt.mappingMethod = 'linear';
}
var mapping = new VisualMapping(opt);
mapping.__drColorMappingBy = colorMappingBy;
return mapping;
}
// Notice: If we dont have the attribute 'colorRange', but only use
// attribute 'color' to represent both concepts of 'colorRange' and 'color',
// (It means 'colorRange' when 'color' is Array, means 'color' when not array),
// this problem will be encountered:
// If a level-1 node dont have children, and its siblings has children,
// and colorRange is set on level-1, then the node can not be colored.
// So we separate 'colorRange' and 'color' to different attributes.
function getRangeVisual(nodeModel, name) {
// 'colorRange', 'colorARange', 'colorSRange'.
// If not exsits on this node, fetch from levels and series.
var range = nodeModel.get(name);
return (isArray(range) && range.length) ? {name: name, range: range} : null;
}
function mapVisual(nodeModel, visuals, child, index, mapping, seriesModel) {
var childVisuals = zrUtil.extend({}, visuals);
if (mapping) {
var mappingType = mapping.type;
var colorMappingBy = mappingType === 'color' && mapping.__drColorMappingBy;
var value =
colorMappingBy === 'index'
? index
: colorMappingBy === 'id'
? seriesModel.mapIdToIndex(child.getId())
: child.getValue(nodeModel.get('visualDimension'));
childVisuals[mappingType] = mapping.mapValueToVisual(value);
}
return childVisuals;
}
});
