/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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import * as echarts from '../../echarts';
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import * as zrUtil from 'zrender/src/core/util';
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import * as graphic from '../../util/graphic';
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import DataDiffer from '../../data/DataDiffer';
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import * as helper from '../helper/treeHelper';
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import Breadcrumb from './Breadcrumb';
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import RoamController from '../../component/helper/RoamController';
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import BoundingRect from 'zrender/src/core/BoundingRect';
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import * as matrix from 'zrender/src/core/matrix';
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import * as animationUtil from '../../util/animation';
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import makeStyleMapper from '../../model/mixin/makeStyleMapper';
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var bind = zrUtil.bind;
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var Group = graphic.Group;
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var Rect = graphic.Rect;
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var each = zrUtil.each;
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var DRAG_THRESHOLD = 3;
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var PATH_LABEL_NOAMAL = ['label'];
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var PATH_LABEL_EMPHASIS = ['emphasis', 'label'];
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var PATH_UPPERLABEL_NORMAL = ['upperLabel'];
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var PATH_UPPERLABEL_EMPHASIS = ['emphasis', 'upperLabel'];
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var Z_BASE = 10; // Should bigger than every z.
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var Z_BG = 1;
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var Z_CONTENT = 2;
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var getItemStyleEmphasis = makeStyleMapper([
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['fill', 'color'],
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// `borderColor` and `borderWidth` has been occupied,
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// so use `stroke` to indicate the stroke of the rect.
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['stroke', 'strokeColor'],
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['lineWidth', 'strokeWidth'],
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['shadowBlur'],
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['shadowOffsetX'],
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['shadowOffsetY'],
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['shadowColor']
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]);
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var getItemStyleNormal = function (model) {
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// Normal style props should include emphasis style props.
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var itemStyle = getItemStyleEmphasis(model);
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// Clear styles set by emphasis.
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itemStyle.stroke = itemStyle.fill = itemStyle.lineWidth = null;
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return itemStyle;
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};
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export default echarts.extendChartView({
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type: 'treemap',
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/**
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* @override
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*/
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init: function (o, api) {
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/**
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* @private
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* @type {module:zrender/container/Group}
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*/
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this._containerGroup;
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/**
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* @private
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* @type {Object.<string, Array.<module:zrender/container/Group>>}
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*/
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this._storage = createStorage();
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/**
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* @private
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* @type {module:echarts/data/Tree}
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*/
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this._oldTree;
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/**
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* @private
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* @type {module:echarts/chart/treemap/Breadcrumb}
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*/
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this._breadcrumb;
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/**
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* @private
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* @type {module:echarts/component/helper/RoamController}
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*/
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this._controller;
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/**
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* 'ready', 'animating'
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* @private
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*/
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this._state = 'ready';
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},
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/**
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* @override
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*/
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render: function (seriesModel, ecModel, api, payload) {
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var models = ecModel.findComponents({
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mainType: 'series', subType: 'treemap', query: payload
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});
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if (zrUtil.indexOf(models, seriesModel) < 0) {
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return;
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}
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this.seriesModel = seriesModel;
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this.api = api;
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this.ecModel = ecModel;
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var types = ['treemapZoomToNode', 'treemapRootToNode'];
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var targetInfo = helper
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.retrieveTargetInfo(payload, types, seriesModel);
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var payloadType = payload && payload.type;
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var layoutInfo = seriesModel.layoutInfo;
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var isInit = !this._oldTree;
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var thisStorage = this._storage;
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// Mark new root when action is treemapRootToNode.
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var reRoot = (payloadType === 'treemapRootToNode' && targetInfo && thisStorage)
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? {
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rootNodeGroup: thisStorage.nodeGroup[targetInfo.node.getRawIndex()],
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direction: payload.direction
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}
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: null;
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var containerGroup = this._giveContainerGroup(layoutInfo);
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var renderResult = this._doRender(containerGroup, seriesModel, reRoot);
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(
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!isInit && (
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!payloadType
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|| payloadType === 'treemapZoomToNode'
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|| payloadType === 'treemapRootToNode'
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)
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)
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? this._doAnimation(containerGroup, renderResult, seriesModel, reRoot)
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: renderResult.renderFinally();
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this._resetController(api);
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this._renderBreadcrumb(seriesModel, api, targetInfo);
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},
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/**
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* @private
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*/
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_giveContainerGroup: function (layoutInfo) {
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var containerGroup = this._containerGroup;
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if (!containerGroup) {
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// FIXME
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// 加一层containerGroup是为了clip，但是现在clip功能并没有实现。
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containerGroup = this._containerGroup = new Group();
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this._initEvents(containerGroup);
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this.group.add(containerGroup);
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}
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containerGroup.attr('position', [layoutInfo.x, layoutInfo.y]);
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return containerGroup;
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},
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/**
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* @private
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*/
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_doRender: function (containerGroup, seriesModel, reRoot) {
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var thisTree = seriesModel.getData().tree;
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var oldTree = this._oldTree;
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// Clear last shape records.
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var lastsForAnimation = createStorage();
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var thisStorage = createStorage();
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var oldStorage = this._storage;
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var willInvisibleEls = [];
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var doRenderNode = zrUtil.curry(
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renderNode, seriesModel,
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thisStorage, oldStorage, reRoot,
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lastsForAnimation, willInvisibleEls
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);
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// Notice: when thisTree and oldTree are the same tree (see list.cloneShallow),
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// the oldTree is actually losted, so we can not find all of the old graphic
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// elements from tree. So we use this stragegy: make element storage, move
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// from old storage to new storage, clear old storage.
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dualTravel(
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thisTree.root ? [thisTree.root] : [],
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(oldTree && oldTree.root) ? [oldTree.root] : [],
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containerGroup,
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thisTree === oldTree || !oldTree,
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0
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);
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// Process all removing.
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var willDeleteEls = clearStorage(oldStorage);
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this._oldTree = thisTree;
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this._storage = thisStorage;
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return {
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lastsForAnimation: lastsForAnimation,
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willDeleteEls: willDeleteEls,
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renderFinally: renderFinally
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};
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function dualTravel(thisViewChildren, oldViewChildren, parentGroup, sameTree, depth) {
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// When 'render' is triggered by action,
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// 'this' and 'old' may be the same tree,
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// we use rawIndex in that case.
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if (sameTree) {
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oldViewChildren = thisViewChildren;
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each(thisViewChildren, function (child, index) {
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!child.isRemoved() && processNode(index, index);
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});
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}
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// Diff hierarchically (diff only in each subtree, but not whole).
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// because, consistency of view is important.
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else {
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(new DataDiffer(oldViewChildren, thisViewChildren, getKey, getKey))
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.add(processNode)
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.update(processNode)
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.remove(zrUtil.curry(processNode, null))
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.execute();
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}
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function getKey(node) {
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// Identify by name or raw index.
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return node.getId();
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}
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function processNode(newIndex, oldIndex) {
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var thisNode = newIndex != null ? thisViewChildren[newIndex] : null;
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var oldNode = oldIndex != null ? oldViewChildren[oldIndex] : null;
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var group = doRenderNode(thisNode, oldNode, parentGroup, depth);
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group && dualTravel(
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thisNode && thisNode.viewChildren || [],
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oldNode && oldNode.viewChildren || [],
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group,
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sameTree,
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depth + 1
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);
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}
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}
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function clearStorage(storage) {
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var willDeleteEls = createStorage();
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storage && each(storage, function (store, storageName) {
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var delEls = willDeleteEls[storageName];
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each(store, function (el) {
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el && (delEls.push(el), el.__tmWillDelete = 1);
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});
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});
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return willDeleteEls;
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}
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function renderFinally() {
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each(willDeleteEls, function (els) {
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each(els, function (el) {
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el.parent && el.parent.remove(el);
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});
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});
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each(willInvisibleEls, function (el) {
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el.invisible = true;
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// Setting invisible is for optimizing, so no need to set dirty,
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// just mark as invisible.
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el.dirty();
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});
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}
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},
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/**
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* @private
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*/
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_doAnimation: function (containerGroup, renderResult, seriesModel, reRoot) {
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if (!seriesModel.get('animation')) {
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return;
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}
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var duration = seriesModel.get('animationDurationUpdate');
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var easing = seriesModel.get('animationEasing');
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var animationWrap = animationUtil.createWrap();
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// Make delete animations.
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each(renderResult.willDeleteEls, function (store, storageName) {
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each(store, function (el, rawIndex) {
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if (el.invisible) {
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return;
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}
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var parent = el.parent; // Always has parent, and parent is nodeGroup.
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var target;
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if (reRoot && reRoot.direction === 'drillDown') {
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target = parent === reRoot.rootNodeGroup
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// This is the content element of view root.
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// Only `content` will enter this branch, because
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// `background` and `nodeGroup` will not be deleted.
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? {
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shape: {
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x: 0,
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y: 0,
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width: parent.__tmNodeWidth,
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height: parent.__tmNodeHeight
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},
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style: {
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opacity: 0
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}
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}
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// Others.
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: {style: {opacity: 0}};
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}
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else {
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var targetX = 0;
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var targetY = 0;
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if (!parent.__tmWillDelete) {
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// Let node animate to right-bottom corner, cooperating with fadeout,
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// which is appropriate for user understanding.
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// Divided by 2 for reRoot rolling up effect.
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targetX = parent.__tmNodeWidth / 2;
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targetY = parent.__tmNodeHeight / 2;
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}
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target = storageName === 'nodeGroup'
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? {position: [targetX, targetY], style: {opacity: 0}}
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: {
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shape: {x: targetX, y: targetY, width: 0, height: 0},
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style: {opacity: 0}
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};
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}
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target && animationWrap.add(el, target, duration, easing);
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});
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});
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// Make other animations
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each(this._storage, function (store, storageName) {
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each(store, function (el, rawIndex) {
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var last = renderResult.lastsForAnimation[storageName][rawIndex];
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var target = {};
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if (!last) {
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return;
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}
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if (storageName === 'nodeGroup') {
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if (last.old) {
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target.position = el.position.slice();
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el.attr('position', last.old);
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}
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}
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else {
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if (last.old) {
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target.shape = zrUtil.extend({}, el.shape);
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el.setShape(last.old);
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}
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if (last.fadein) {
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el.setStyle('opacity', 0);
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target.style = {opacity: 1};
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}
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// When animation is stopped for succedent animation starting,
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// el.style.opacity might not be 1
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else if (el.style.opacity !== 1) {
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target.style = {opacity: 1};
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}
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}
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animationWrap.add(el, target, duration, easing);
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});
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}, this);
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this._state = 'animating';
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animationWrap
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.done(bind(function () {
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this._state = 'ready';
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renderResult.renderFinally();
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}, this))
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.start();
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},
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/**
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* @private
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*/
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_resetController: function (api) {
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var controller = this._controller;
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// Init controller.
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if (!controller) {
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controller = this._controller = new RoamController(api.getZr());
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controller.enable(this.seriesModel.get('roam'));
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controller.on('pan', bind(this._onPan, this));
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controller.on('zoom', bind(this._onZoom, this));
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}
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var rect = new BoundingRect(0, 0, api.getWidth(), api.getHeight());
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controller.setPointerChecker(function (e, x, y) {
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return rect.contain(x, y);
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});
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},
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/**
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* @private
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*/
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_clearController: function () {
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var controller = this._controller;
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if (controller) {
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controller.dispose();
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controller = null;
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}
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},
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/**
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* @private
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*/
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_onPan: function (e) {
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if (this._state !== 'animating'
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&& (Math.abs(e.dx) > DRAG_THRESHOLD || Math.abs(e.dy) > DRAG_THRESHOLD)
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) {
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// These param must not be cached.
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var root = this.seriesModel.getData().tree.root;
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if (!root) {
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return;
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}
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var rootLayout = root.getLayout();
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if (!rootLayout) {
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return;
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}
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this.api.dispatchAction({
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type: 'treemapMove',
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from: this.uid,
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seriesId: this.seriesModel.id,
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rootRect: {
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x: rootLayout.x + e.dx, y: rootLayout.y + e.dy,
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width: rootLayout.width, height: rootLayout.height
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}
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});
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}
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},
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/**
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* @private
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*/
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_onZoom: function (e) {
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var mouseX = e.originX;
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var mouseY = e.originY;
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if (this._state !== 'animating') {
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// These param must not be cached.
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var root = this.seriesModel.getData().tree.root;
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if (!root) {
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return;
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}
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var rootLayout = root.getLayout();
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if (!rootLayout) {
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return;
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}
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var rect = new BoundingRect(
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rootLayout.x, rootLayout.y, rootLayout.width, rootLayout.height
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);
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var layoutInfo = this.seriesModel.layoutInfo;
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// Transform mouse coord from global to containerGroup.
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mouseX -= layoutInfo.x;
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mouseY -= layoutInfo.y;
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// Scale root bounding rect.
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var m = matrix.create();
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matrix.translate(m, m, [-mouseX, -mouseY]);
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matrix.scale(m, m, [e.scale, e.scale]);
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matrix.translate(m, m, [mouseX, mouseY]);
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rect.applyTransform(m);
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this.api.dispatchAction({
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type: 'treemapRender',
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from: this.uid,
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seriesId: this.seriesModel.id,
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rootRect: {
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x: rect.x, y: rect.y,
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width: rect.width, height: rect.height
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}
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});
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}
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},
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/**
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* @private
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*/
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_initEvents: function (containerGroup) {
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containerGroup.on('click', function (e) {
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if (this._state !== 'ready') {
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return;
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}
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var nodeClick = this.seriesModel.get('nodeClick', true);
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if (!nodeClick) {
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return;
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}
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var targetInfo = this.findTarget(e.offsetX, e.offsetY);
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if (!targetInfo) {
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return;
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}
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var node = targetInfo.node;
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if (node.getLayout().isLeafRoot) {
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this._rootToNode(targetInfo);
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}
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else {
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if (nodeClick === 'zoomToNode') {
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this._zoomToNode(targetInfo);
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}
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else if (nodeClick === 'link') {
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var itemModel = node.hostTree.data.getItemModel(node.dataIndex);
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var link = itemModel.get('link', true);
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var linkTarget = itemModel.get('target', true) || 'blank';
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link && window.open(link, linkTarget);
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}
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}
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}, this);
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},
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/**
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* @private
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*/
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_renderBreadcrumb: function (seriesModel, api, targetInfo) {
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if (!targetInfo) {
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targetInfo = seriesModel.get('leafDepth', true) != null
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? {node: seriesModel.getViewRoot()}
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// FIXME
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// better way?
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// Find breadcrumb tail on center of containerGroup.
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: this.findTarget(api.getWidth() / 2, api.getHeight() / 2);
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if (!targetInfo) {
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targetInfo = {node: seriesModel.getData().tree.root};
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}
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}
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(this._breadcrumb || (this._breadcrumb = new Breadcrumb(this.group)))
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.render(seriesModel, api, targetInfo.node, bind(onSelect, this));
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function onSelect(node) {
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if (this._state !== 'animating') {
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helper.aboveViewRoot(seriesModel.getViewRoot(), node)
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? this._rootToNode({node: node})
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: this._zoomToNode({node: node});
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}
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}
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},
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/**
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* @override
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*/
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remove: function () {
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this._clearController();
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this._containerGroup && this._containerGroup.removeAll();
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this._storage = createStorage();
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this._state = 'ready';
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this._breadcrumb && this._breadcrumb.remove();
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},
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dispose: function () {
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this._clearController();
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},
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/**
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* @private
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*/
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_zoomToNode: function (targetInfo) {
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this.api.dispatchAction({
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type: 'treemapZoomToNode',
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from: this.uid,
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seriesId: this.seriesModel.id,
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targetNode: targetInfo.node
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});
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},
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/**
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* @private
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*/
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_rootToNode: function (targetInfo) {
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this.api.dispatchAction({
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type: 'treemapRootToNode',
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from: this.uid,
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seriesId: this.seriesModel.id,
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targetNode: targetInfo.node
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});
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},
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/**
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* @public
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* @param {number} x Global coord x.
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* @param {number} y Global coord y.
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* @return {Object} info If not found, return undefined;
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* @return {number} info.node Target node.
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* @return {number} info.offsetX x refer to target node.
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* @return {number} info.offsetY y refer to target node.
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*/
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findTarget: function (x, y) {
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var targetInfo;
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var viewRoot = this.seriesModel.getViewRoot();
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viewRoot.eachNode({attr: 'viewChildren', order: 'preorder'}, function (node) {
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var bgEl = this._storage.background[node.getRawIndex()];
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// If invisible, there might be no element.
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if (bgEl) {
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var point = bgEl.transformCoordToLocal(x, y);
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var shape = bgEl.shape;
|
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// For performance consideration, dont use 'getBoundingRect'.
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if (shape.x <= point[0]
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&& point[0] <= shape.x + shape.width
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&& shape.y <= point[1]
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&& point[1] <= shape.y + shape.height
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) {
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targetInfo = {node: node, offsetX: point[0], offsetY: point[1]};
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}
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else {
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return false; // Suppress visit subtree.
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}
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}
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}, this);
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return targetInfo;
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}
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});
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/**
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* @inner
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*/
|
function createStorage() {
|
return {nodeGroup: [], background: [], content: []};
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}
|
|
/**
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* @inner
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* @return Return undefined means do not travel further.
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*/
|
function renderNode(
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seriesModel, thisStorage, oldStorage, reRoot,
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lastsForAnimation, willInvisibleEls,
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thisNode, oldNode, parentGroup, depth
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) {
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// Whether under viewRoot.
|
if (!thisNode) {
|
// Deleting nodes will be performed finally. This method just find
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// element from old storage, or create new element, set them to new
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// storage, and set styles.
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return;
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}
|
|
// -------------------------------------------------------------------
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// Start of closure variables available in "Procedures in renderNode".
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|
var thisLayout = thisNode.getLayout();
|
|
if (!thisLayout || !thisLayout.isInView) {
|
return;
|
}
|
|
var thisWidth = thisLayout.width;
|
var thisHeight = thisLayout.height;
|
var borderWidth = thisLayout.borderWidth;
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var thisInvisible = thisLayout.invisible;
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var thisRawIndex = thisNode.getRawIndex();
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var oldRawIndex = oldNode && oldNode.getRawIndex();
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var thisViewChildren = thisNode.viewChildren;
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var upperHeight = thisLayout.upperHeight;
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var isParent = thisViewChildren && thisViewChildren.length;
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var itemStyleNormalModel = thisNode.getModel('itemStyle');
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var itemStyleEmphasisModel = thisNode.getModel('emphasis.itemStyle');
|
|
// End of closure ariables available in "Procedures in renderNode".
|
// -----------------------------------------------------------------
|
|
// Node group
|
var group = giveGraphic('nodeGroup', Group);
|
|
if (!group) {
|
return;
|
}
|
|
parentGroup.add(group);
|
// x,y are not set when el is above view root.
|
group.attr('position', [thisLayout.x || 0, thisLayout.y || 0]);
|
group.__tmNodeWidth = thisWidth;
|
group.__tmNodeHeight = thisHeight;
|
|
if (thisLayout.isAboveViewRoot) {
|
return group;
|
}
|
|
// Background
|
var bg = giveGraphic('background', Rect, depth, Z_BG);
|
bg && renderBackground(group, bg, isParent && thisLayout.upperHeight);
|
|
// No children, render content.
|
if (!isParent) {
|
var content = giveGraphic('content', Rect, depth, Z_CONTENT);
|
content && renderContent(group, content);
|
}
|
|
return group;
|
|
// ----------------------------
|
// | Procedures in renderNode |
|
// ----------------------------
|
|
function renderBackground(group, bg, useUpperLabel) {
|
// For tooltip.
|
bg.dataIndex = thisNode.dataIndex;
|
bg.seriesIndex = seriesModel.seriesIndex;
|
|
bg.setShape({x: 0, y: 0, width: thisWidth, height: thisHeight});
|
var visualBorderColor = thisNode.getVisual('borderColor', true);
|
var emphasisBorderColor = itemStyleEmphasisModel.get('borderColor');
|
|
updateStyle(bg, function () {
|
var normalStyle = getItemStyleNormal(itemStyleNormalModel);
|
normalStyle.fill = visualBorderColor;
|
var emphasisStyle = getItemStyleEmphasis(itemStyleEmphasisModel);
|
emphasisStyle.fill = emphasisBorderColor;
|
|
if (useUpperLabel) {
|
var upperLabelWidth = thisWidth - 2 * borderWidth;
|
|
prepareText(
|
normalStyle, emphasisStyle, visualBorderColor, upperLabelWidth, upperHeight,
|
{x: borderWidth, y: 0, width: upperLabelWidth, height: upperHeight}
|
);
|
}
|
// For old bg.
|
else {
|
normalStyle.text = emphasisStyle.text = null;
|
}
|
|
bg.setStyle(normalStyle);
|
graphic.setHoverStyle(bg, emphasisStyle);
|
});
|
|
group.add(bg);
|
}
|
|
function renderContent(group, content) {
|
// For tooltip.
|
content.dataIndex = thisNode.dataIndex;
|
content.seriesIndex = seriesModel.seriesIndex;
|
|
var contentWidth = Math.max(thisWidth - 2 * borderWidth, 0);
|
var contentHeight = Math.max(thisHeight - 2 * borderWidth, 0);
|
|
content.culling = true;
|
content.setShape({
|
x: borderWidth,
|
y: borderWidth,
|
width: contentWidth,
|
height: contentHeight
|
});
|
|
var visualColor = thisNode.getVisual('color', true);
|
updateStyle(content, function () {
|
var normalStyle = getItemStyleNormal(itemStyleNormalModel);
|
normalStyle.fill = visualColor;
|
var emphasisStyle = getItemStyleEmphasis(itemStyleEmphasisModel);
|
|
prepareText(normalStyle, emphasisStyle, visualColor, contentWidth, contentHeight);
|
|
content.setStyle(normalStyle);
|
graphic.setHoverStyle(content, emphasisStyle);
|
});
|
|
group.add(content);
|
}
|
|
function updateStyle(element, cb) {
|
if (!thisInvisible) {
|
// If invisible, do not set visual, otherwise the element will
|
// change immediately before animation. We think it is OK to
|
// remain its origin color when moving out of the view window.
|
cb();
|
|
if (!element.__tmWillVisible) {
|
element.invisible = false;
|
}
|
}
|
else {
|
// Delay invisible setting utill animation finished,
|
// avoid element vanish suddenly before animation.
|
!element.invisible && willInvisibleEls.push(element);
|
}
|
}
|
|
function prepareText(normalStyle, emphasisStyle, visualColor, width, height, upperLabelRect) {
|
var nodeModel = thisNode.getModel();
|
var text = zrUtil.retrieve(
|
seriesModel.getFormattedLabel(
|
thisNode.dataIndex, 'normal', null, null, upperLabelRect ? 'upperLabel' : 'label'
|
),
|
nodeModel.get('name')
|
);
|
if (!upperLabelRect && thisLayout.isLeafRoot) {
|
var iconChar = seriesModel.get('drillDownIcon', true);
|
text = iconChar ? iconChar + ' ' + text : text;
|
}
|
|
var normalLabelModel = nodeModel.getModel(
|
upperLabelRect ? PATH_UPPERLABEL_NORMAL : PATH_LABEL_NOAMAL
|
);
|
var emphasisLabelModel = nodeModel.getModel(
|
upperLabelRect ? PATH_UPPERLABEL_EMPHASIS : PATH_LABEL_EMPHASIS
|
);
|
|
var isShow = normalLabelModel.getShallow('show');
|
|
graphic.setLabelStyle(
|
normalStyle, emphasisStyle, normalLabelModel, emphasisLabelModel,
|
{
|
defaultText: isShow ? text : null,
|
autoColor: visualColor,
|
isRectText: true
|
}
|
);
|
|
upperLabelRect && (normalStyle.textRect = zrUtil.clone(upperLabelRect));
|
|
normalStyle.truncate = (isShow && normalLabelModel.get('ellipsis'))
|
? {
|
outerWidth: width,
|
outerHeight: height,
|
minChar: 2
|
}
|
: null;
|
}
|
|
function giveGraphic(storageName, Ctor, depth, z) {
|
var element = oldRawIndex != null && oldStorage[storageName][oldRawIndex];
|
var lasts = lastsForAnimation[storageName];
|
|
if (element) {
|
// Remove from oldStorage
|
oldStorage[storageName][oldRawIndex] = null;
|
prepareAnimationWhenHasOld(lasts, element, storageName);
|
}
|
// If invisible and no old element, do not create new element (for optimizing).
|
else if (!thisInvisible) {
|
element = new Ctor({z: calculateZ(depth, z)});
|
element.__tmDepth = depth;
|
element.__tmStorageName = storageName;
|
prepareAnimationWhenNoOld(lasts, element, storageName);
|
}
|
|
// Set to thisStorage
|
return (thisStorage[storageName][thisRawIndex] = element);
|
}
|
|
function prepareAnimationWhenHasOld(lasts, element, storageName) {
|
var lastCfg = lasts[thisRawIndex] = {};
|
lastCfg.old = storageName === 'nodeGroup'
|
? element.position.slice()
|
: zrUtil.extend({}, element.shape);
|
}
|
|
// If a element is new, we need to find the animation start point carefully,
|
// otherwise it will looks strange when 'zoomToNode'.
|
function prepareAnimationWhenNoOld(lasts, element, storageName) {
|
var lastCfg = lasts[thisRawIndex] = {};
|
var parentNode = thisNode.parentNode;
|
|
if (parentNode && (!reRoot || reRoot.direction === 'drillDown')) {
|
var parentOldX = 0;
|
var parentOldY = 0;
|
|
// New nodes appear from right-bottom corner in 'zoomToNode' animation.
|
// For convenience, get old bounding rect from background.
|
var parentOldBg = lastsForAnimation.background[parentNode.getRawIndex()];
|
if (!reRoot && parentOldBg && parentOldBg.old) {
|
parentOldX = parentOldBg.old.width;
|
parentOldY = parentOldBg.old.height;
|
}
|
|
// When no parent old shape found, its parent is new too,
|
// so we can just use {x:0, y:0}.
|
lastCfg.old = storageName === 'nodeGroup'
|
? [0, parentOldY]
|
: {x: parentOldX, y: parentOldY, width: 0, height: 0};
|
}
|
|
// Fade in, user can be aware that these nodes are new.
|
lastCfg.fadein = storageName !== 'nodeGroup';
|
}
|
}
|
|
// We can not set all backgroud with the same z, Because the behaviour of
|
// drill down and roll up differ background creation sequence from tree
|
// hierarchy sequence, which cause that lowser background element overlap
|
// upper ones. So we calculate z based on depth.
|
// Moreover, we try to shrink down z interval to [0, 1] to avoid that
|
// treemap with large z overlaps other components.
|
function calculateZ(depth, zInLevel) {
|
var zb = depth * Z_BASE + zInLevel;
|
return (zb - 1) / zb;
|
}
|
