ParallelAxisView.js
4.08 KB
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define(function (require) {
var zrUtil = require('zrender/core/util');
var AxisBuilder = require('./AxisBuilder');
var SelectController = require('../helper/SelectController');
var elementList = ['axisLine', 'axisLabel', 'axisTick', 'axisName'];
var AxisView = require('../../echarts').extendComponentView({
type: 'parallelAxis',
/**
* @type {module:echarts/component/helper/SelectController}
*/
_selectController: null,
/**
* @override
*/
render: function (axisModel, ecModel, api, payload) {
if (fromAxisAreaSelect(axisModel, ecModel, payload)) {
return;
}
this.axisModel = axisModel;
this.api = api;
this.group.removeAll();
if (!axisModel.get('show')) {
return;
}
var coordSys = ecModel.getComponent(
'parallel', axisModel.get('parallelIndex')
).coordinateSystem;
var areaSelectStyle = axisModel.getAreaSelectStyle();
var areaWidth = areaSelectStyle.width;
var axisLayout = coordSys.getAxisLayout(axisModel.axis.dim);
var builderOpt = zrUtil.extend(
{
strokeContainThreshold: areaWidth,
// lineWidth === 0 or no value.
axisLineSilent: !(areaWidth > 0) // jshint ignore:line
},
axisLayout
);
var axisBuilder = new AxisBuilder(axisModel, builderOpt);
zrUtil.each(elementList, axisBuilder.add, axisBuilder);
var axisGroup = axisBuilder.getGroup();
this.group.add(axisGroup);
this._buildSelectController(
axisGroup, areaSelectStyle, axisModel, api
);
},
_buildSelectController: function (axisGroup, areaSelectStyle, axisModel, api) {
var axis = axisModel.axis;
var selectController = this._selectController;
if (!selectController) {
selectController = this._selectController = new SelectController(
'line',
api.getZr(),
areaSelectStyle
);
selectController.on('selected', zrUtil.bind(this._onSelected, this));
}
selectController.enable(axisGroup);
// After filtering, axis may change, select area needs to be update.
var ranges = zrUtil.map(axisModel.activeIntervals, function (interval) {
return [
axis.dataToCoord(interval[0], true),
axis.dataToCoord(interval[1], true)
];
});
selectController.update(ranges);
},
_onSelected: function (ranges) {
// Do not cache these object, because the mey be changed.
var axisModel = this.axisModel;
var axis = axisModel.axis;
var intervals = zrUtil.map(ranges, function (range) {
return [
axis.coordToData(range[0], true),
axis.coordToData(range[1], true)
];
});
this.api.dispatchAction({
type: 'axisAreaSelect',
parallelAxisId: axisModel.id,
intervals: intervals
});
},
/**
* @override
*/
remove: function () {
this._selectController && this._selectController.disable();
},
/**
* @override
*/
dispose: function () {
if (this._selectController) {
this._selectController.dispose();
this._selectController = null;
}
}
});
function fromAxisAreaSelect(axisModel, ecModel, payload) {
return payload
&& payload.type === 'axisAreaSelect'
&& ecModel.findComponents(
{mainType: 'parallelAxis', query: payload}
)[0] === axisModel;
}
return AxisView;
});