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node_modules/echarts/src/visual/symbol.js 3.24 KB
aaac7fed   liuqimichale   add
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  /*
  * 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.
  */
  
  
  export default function (seriesType, defaultSymbolType, legendSymbol) {
      // Encoding visual for all series include which is filtered for legend drawing
      return {
          seriesType: seriesType,
  
          // For legend.
          performRawSeries: true,
  
          reset: function (seriesModel, ecModel, api) {
              var data = seriesModel.getData();
  
              var symbolType = seriesModel.get('symbol') || defaultSymbolType;
              var symbolSize = seriesModel.get('symbolSize');
              var keepAspect = seriesModel.get('symbolKeepAspect');
  
              data.setVisual({
                  legendSymbol: legendSymbol || symbolType,
                  symbol: symbolType,
                  symbolSize: symbolSize,
                  symbolKeepAspect: keepAspect
              });
  
              // Only visible series has each data be visual encoded
              if (ecModel.isSeriesFiltered(seriesModel)) {
                  return;
              }
  
              var hasCallback = typeof symbolSize === 'function';
  
              function dataEach(data, idx) {
                  if (typeof symbolSize === 'function') {
                      var rawValue = seriesModel.getRawValue(idx);
                      // FIXME
                      var params = seriesModel.getDataParams(idx);
                      data.setItemVisual(idx, 'symbolSize', symbolSize(rawValue, params));
                  }
  
                  if (data.hasItemOption) {
                      var itemModel = data.getItemModel(idx);
                      var itemSymbolType = itemModel.getShallow('symbol', true);
                      var itemSymbolSize = itemModel.getShallow('symbolSize',
                          true);
                      var itemSymbolKeepAspect
                          = itemModel.getShallow('symbolKeepAspect', true);
  
                      // If has item symbol
                      if (itemSymbolType != null) {
                          data.setItemVisual(idx, 'symbol', itemSymbolType);
                      }
                      if (itemSymbolSize != null) {
                          // PENDING Transform symbolSize ?
                          data.setItemVisual(idx, 'symbolSize', itemSymbolSize);
                      }
                      if (itemSymbolKeepAspect != null) {
                          data.setItemVisual(idx, 'symbolKeepAspect',
                              itemSymbolKeepAspect);
                      }
                  }
              }
  
              return { dataEach: (data.hasItemOption || hasCallback) ? dataEach : null };
          }
      };
  }