/**
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* echarts组件基类
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*
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* @desc echarts基于Canvas，纯Javascript图表库，提供直观，生动，可交互，可个性化定制的数据统计图表。
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* @author Kener (@Kener-林峰, kener.linfeng@gmail.com)
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*
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*/
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define(function (require) {
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var ecConfig = require('../config');
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var ecData = require('../util/ecData');
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var ecQuery = require('../util/ecQuery');
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var number = require('../util/number');
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var zrUtil = require('zrender/tool/util');
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function Base(ecTheme, messageCenter, zr, option, myChart){
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this.ecTheme = ecTheme;
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this.messageCenter = messageCenter;
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this.zr =zr;
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this.option = option;
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this.series = option.series;
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this.myChart = myChart;
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this.component = myChart.component;
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this.shapeList = [];
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this.effectList = [];
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var self = this;
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self._onlegendhoverlink = function(param) {
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if (self.legendHoverLink) {
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var targetName = param.target;
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var name;
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for (var i = self.shapeList.length - 1; i >= 0; i--) {
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name = self.type == ecConfig.CHART_TYPE_PIE
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|| self.type == ecConfig.CHART_TYPE_FUNNEL
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? ecData.get(self.shapeList[i], 'name')
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: (ecData.get(self.shapeList[i], 'series') || {}).name;
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if (name == targetName
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&& !self.shapeList[i].invisible
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&& !self.shapeList[i].__animating
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) {
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self.zr.addHoverShape(self.shapeList[i]);
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}
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}
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}
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};
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messageCenter && messageCenter.bind(
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ecConfig.EVENT.LEGEND_HOVERLINK, this._onlegendhoverlink
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);
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}
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/**
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* 基类方法
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*/
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Base.prototype = {
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canvasSupported: require('zrender/tool/env').canvasSupported,
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_getZ : function(zWhat) {
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if (this[zWhat] != null) {
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return this[zWhat];
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}
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var opt = this.ecTheme[this.type];
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if (opt && opt[zWhat] != null) {
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return opt[zWhat];
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}
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opt = ecConfig[this.type];
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if (opt && opt[zWhat] != null) {
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return opt[zWhat];
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}
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return 0;
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},
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/**
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* 获取zlevel基数配置
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*/
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getZlevelBase: function () {
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return this._getZ('zlevel');
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},
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/**
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* 获取z基数配置
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*/
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getZBase: function() {
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return this._getZ('z');
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},
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/**
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* 参数修正&默认值赋值
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* @param {Object} opt 参数
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*
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* @return {Object} 修正后的参数
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*/
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reformOption: function (opt) {
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// 默认配置项动态多级合并，依赖加载的组件选项未被merge到ecTheme里，需要从config里取
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opt = zrUtil.merge(
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zrUtil.merge(
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opt || {},
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zrUtil.clone(this.ecTheme[this.type] || {})
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),
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zrUtil.clone(ecConfig[this.type] || {})
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);
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this.z = opt.z;
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this.zlevel = opt.zlevel;
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return opt;
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},
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/**
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* css类属性数组补全，如padding，margin等~
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*/
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reformCssArray: function (p) {
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if (p instanceof Array) {
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switch (p.length + '') {
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case '4':
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return p;
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case '3':
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return [p[0], p[1], p[2], p[1]];
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case '2':
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return [p[0], p[1], p[0], p[1]];
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case '1':
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return [p[0], p[0], p[0], p[0]];
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case '0':
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return [0, 0, 0, 0];
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}
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}
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else {
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return [p, p, p, p];
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}
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},
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getShapeById: function(id) {
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for (var i = 0, l = this.shapeList.length; i < l; i++) {
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if (this.shapeList[i].id === id) {
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return this.shapeList[i];
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}
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}
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return null;
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},
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/**
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* 获取自定义和默认配置合并后的字体设置
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*/
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getFont: function (textStyle) {
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var finalTextStyle = this.getTextStyle(
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zrUtil.clone(textStyle)
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);
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return finalTextStyle.fontStyle + ' '
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+ finalTextStyle.fontWeight + ' '
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+ finalTextStyle.fontSize + 'px '
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+ finalTextStyle.fontFamily;
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},
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/**
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* 获取统一主题字体样式
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*/
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getTextStyle: function(targetStyle) {
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return zrUtil.merge(
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zrUtil.merge(
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targetStyle || {},
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this.ecTheme.textStyle
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),
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ecConfig.textStyle
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);
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},
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getItemStyleColor: function (itemColor, seriesIndex, dataIndex, data) {
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return typeof itemColor === 'function'
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? itemColor.call(
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this.myChart,
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{
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seriesIndex: seriesIndex,
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series: this.series[seriesIndex],
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dataIndex: dataIndex,
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data: data
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}
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)
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: itemColor;
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},
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/**
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* @parmas {object | number} data 目标data
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* @params {string= | number=} defaultData 无数据时默认返回
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*/
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getDataFromOption: function (data, defaultData) {
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return data != null ? (data.value != null ? data.value : data) : defaultData;
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},
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// 亚像素优化
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subPixelOptimize: function (position, lineWidth) {
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if (lineWidth % 2 === 1) {
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//position += position === Math.ceil(position) ? 0.5 : 0;
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position = Math.floor(position) + 0.5;
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}
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else {
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position = Math.round(position);
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}
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return position;
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},
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// 默认resize
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resize: function () {
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this.refresh && this.refresh();
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this.clearEffectShape && this.clearEffectShape(true);
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var self = this;
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setTimeout(function(){
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self.animationEffect && self.animationEffect();
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},200);
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},
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/**
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* 清除图形数据，实例仍可用
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*/
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clear :function () {
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this.clearEffectShape && this.clearEffectShape();
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this.zr && this.zr.delShape(this.shapeList);
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this.shapeList = [];
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},
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/**
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* 释放后实例不可用
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*/
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dispose: function () {
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this.onbeforDispose && this.onbeforDispose();
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this.clear();
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this.shapeList = null;
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this.effectList = null;
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this.messageCenter && this.messageCenter.unbind(
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ecConfig.EVENT.LEGEND_HOVERLINK, this._onlegendhoverlink
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);
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this.onafterDispose && this.onafterDispose();
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},
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query: ecQuery.query,
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deepQuery: ecQuery.deepQuery,
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deepMerge: ecQuery.deepMerge,
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parsePercent: number.parsePercent,
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parseCenter: number.parseCenter,
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parseRadius: number.parseRadius,
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numAddCommas: number.addCommas
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};
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return Base;
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});
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