lepu-test-platform-web/node_modules/echarts/lib/chart/treemap/treemapVisual.js

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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
var VisualMapping = require("../../visual/VisualMapping");
var zrColor = require("zrender/lib/tool/color");
var zrUtil = require("zrender/lib/core/util");
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
var isArray = zrUtil.isArray;
var ITEM_STYLE_NORMAL = 'itemStyle';
var _default = {
seriesType: 'treemap',
reset: function (seriesModel, ecModel, api, payload) {
var tree = seriesModel.getData().tree;
var root = tree.root;
if (root.isRemoved()) {
return;
}
travelTree(root, // Visual should calculate from tree root but not view root.
{}, seriesModel.getViewRoot().getAncestors(), seriesModel);
}
};
function travelTree(node, designatedVisual, 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 visuals = buildVisuals(nodeItemStyleModel, designatedVisual, seriesModel); // 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, viewRootAncestors, seriesModel);
}
});
}
}
function buildVisuals(nodeItemStyleModel, designatedVisual, seriesModel) {
var visuals = zrUtil.extend({}, designatedVisual);
var designatedVisualItemStyle = seriesModel.designatedVisualItemStyle;
zrUtil.each(['color', 'colorAlpha', 'colorSaturation'], function (visualName) {
// Priority: thisNode > thisLevel > parentNodeDesignated > seriesModel
designatedVisualItemStyle[visualName] = designatedVisual[visualName];
var val = nodeItemStyleModel.get(visualName);
designatedVisualItemStyle[visualName] = null;
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 visualMin = nodeModel.get('visualMin');
var visualMax = nodeModel.get('visualMax');
var dataExtent = nodeLayout.dataExtent.slice();
visualMin != null && visualMin < dataExtent[0] && (dataExtent[0] = visualMin);
visualMax != null && visualMax > dataExtent[1] && (dataExtent[1] = visualMax);
var colorMappingBy = nodeModel.get('colorMappingBy');
var opt = {
type: rangeVisual.name,
dataExtent: 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;
}
module.exports = _default;