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node_modules/echarts/src/chart/candlestick/candlestickVisual.js 2.68 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.
  */
  
  import createRenderPlanner from '../helper/createRenderPlanner';
  
  var positiveBorderColorQuery = ['itemStyle', 'borderColor'];
  var negativeBorderColorQuery = ['itemStyle', 'borderColor0'];
  var positiveColorQuery = ['itemStyle', 'color'];
  var negativeColorQuery = ['itemStyle', 'color0'];
  
  export default {
  
      seriesType: 'candlestick',
  
      plan: createRenderPlanner(),
  
      // For legend.
      performRawSeries: true,
  
      reset: function (seriesModel, ecModel) {
  
          var data = seriesModel.getData();
          var isLargeRender = seriesModel.pipelineContext.large;
  
          data.setVisual({
              legendSymbol: 'roundRect',
              colorP: getColor(1, seriesModel),
              colorN: getColor(-1, seriesModel),
              borderColorP: getBorderColor(1, seriesModel),
              borderColorN: getBorderColor(-1, seriesModel)
          });
  
          // Only visible series has each data be visual encoded
          if (ecModel.isSeriesFiltered(seriesModel)) {
              return;
          }
  
          return !isLargeRender && {progress: progress};
  
  
          function progress(params, data) {
              var dataIndex;
              while ((dataIndex = params.next()) != null) {
                  var itemModel = data.getItemModel(dataIndex);
                  var sign = data.getItemLayout(dataIndex).sign;
  
                  data.setItemVisual(
                      dataIndex,
                      {
                          color: getColor(sign, itemModel),
                          borderColor: getBorderColor(sign, itemModel)
                      }
                  );
              }
          }
  
          function getColor(sign, model) {
              return model.get(
                  sign > 0 ? positiveColorQuery : negativeColorQuery
              );
          }
  
          function getBorderColor(sign, model) {
              return model.get(
                  sign > 0 ? positiveBorderColorQuery : negativeBorderColorQuery
              );
          }
  
      }
  
  };