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node_modules/echarts/lib/component/brush/BrushView.js 2.94 KB
2a09d1a4   liuqimichale   添加宜春 天水 宣化
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  var echarts = require("../../echarts");
  
  var zrUtil = require("zrender/lib/core/util");
  
  var BrushController = require("../helper/BrushController");
  
  /*
  * 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 _default = echarts.extendComponentView({
    type: 'brush',
    init: function (ecModel, api) {
      /**
       * @readOnly
       * @type {module:echarts/model/Global}
       */
      this.ecModel = ecModel;
      /**
       * @readOnly
       * @type {module:echarts/ExtensionAPI}
       */
  
      this.api = api;
      /**
       * @readOnly
       * @type {module:echarts/component/brush/BrushModel}
       */
  
      this.model;
      /**
       * @private
       * @type {module:echarts/component/helper/BrushController}
       */
  
      (this._brushController = new BrushController(api.getZr())).on('brush', zrUtil.bind(this._onBrush, this)).mount();
    },
  
    /**
     * @override
     */
    render: function (brushModel) {
      this.model = brushModel;
      return updateController.apply(this, arguments);
    },
  
    /**
     * @override
     */
    updateTransform: updateController,
  
    /**
     * @override
     */
    updateView: updateController,
    // /**
    //  * @override
    //  */
    // updateLayout: updateController,
    // /**
    //  * @override
    //  */
    // updateVisual: updateController,
  
    /**
     * @override
     */
    dispose: function () {
      this._brushController.dispose();
    },
  
    /**
     * @private
     */
    _onBrush: function (areas, opt) {
      var modelId = this.model.id;
      this.model.brushTargetManager.setOutputRanges(areas, this.ecModel); // Action is not dispatched on drag end, because the drag end
      // emits the same params with the last drag move event, and
      // may have some delay when using touch pad, which makes
      // animation not smooth (when using debounce).
  
      (!opt.isEnd || opt.removeOnClick) && this.api.dispatchAction({
        type: 'brush',
        brushId: modelId,
        areas: zrUtil.clone(areas),
        $from: modelId
      });
    }
  });
  
  function updateController(brushModel, ecModel, api, payload) {
    // Do not update controller when drawing.
    (!payload || payload.$from !== brushModel.id) && this._brushController.setPanels(brushModel.brushTargetManager.makePanelOpts(api)).enableBrush(brushModel.brushOption).updateCovers(brushModel.areas.slice());
  }
  
  module.exports = _default;