public/en/builder/src/echarts/visual/dataColor.js

/*
* 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.
*/
// Pick color from palette for each data item.
// Applicable for charts that require applying color palette
// in data level (like pie, funnel, chord).
import { createHashMap } from 'zrender/src/core/util';
export default function (seriesType) {
  return {
    getTargetSeries: function (ecModel) {
      // Pie and funnel may use diferrent scope
      var paletteScope = {};
      var seiresModelMap = createHashMap();
      ecModel.eachSeriesByType(seriesType, function (seriesModel) {
        seriesModel.__paletteScope = paletteScope;
        seiresModelMap.set(seriesModel.uid, seriesModel);
      });
      return seiresModelMap;
    },
    reset: function (seriesModel, ecModel) {
      var dataAll = seriesModel.getRawData();
      var idxMap = {};
      var data = seriesModel.getData();
      data.each(function (idx) {
        var rawIdx = data.getRawIndex(idx);
        idxMap[rawIdx] = idx;
      });
      dataAll.each(function (rawIdx) {
        var filteredIdx = idxMap[rawIdx]; // If series.itemStyle.normal.color is a function. itemVisual may be encoded

        var singleDataColor = filteredIdx != null && data.getItemVisual(filteredIdx, 'color', true);

        if (!singleDataColor) {
          // FIXME Performance
          var itemModel = dataAll.getItemModel(rawIdx);
          var color = itemModel.get('itemStyle.color') || seriesModel.getColorFromPalette(dataAll.getName(rawIdx) || rawIdx + '', seriesModel.__paletteScope, dataAll.count()); // Legend may use the visual info in data before processed

          dataAll.setItemVisual(rawIdx, 'color', color); // Data is not filtered

          if (filteredIdx != null) {
            data.setItemVisual(filteredIdx, 'color', color);
          }
        } else {
          // Set data all color for legend
          dataAll.setItemVisual(rawIdx, 'color', singleDataColor);
        }
      });
    }
  };
}