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node_modules/echarts/lib/component/visualMap/helper.js 3.31 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.
  */
  
  var zrUtil = require("zrender/lib/core/util");
  
  var _layout = require("../../util/layout");
  
  var getLayoutRect = _layout.getLayoutRect;
  
  /*
  * 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.
  */
  
  /**
   * @param {module:echarts/component/visualMap/VisualMapModel} visualMapModel\
   * @param {module:echarts/ExtensionAPI} api
   * @param {Array.<number>} itemSize always [short, long]
   * @return {string} 'left' or 'right' or 'top' or 'bottom'
   */
  function getItemAlign(visualMapModel, api, itemSize) {
    var modelOption = visualMapModel.option;
    var itemAlign = modelOption.align;
  
    if (itemAlign != null && itemAlign !== 'auto') {
      return itemAlign;
    } // Auto decision align.
  
  
    var ecSize = {
      width: api.getWidth(),
      height: api.getHeight()
    };
    var realIndex = modelOption.orient === 'horizontal' ? 1 : 0;
    var paramsSet = [['left', 'right', 'width'], ['top', 'bottom', 'height']];
    var reals = paramsSet[realIndex];
    var fakeValue = [0, null, 10];
    var layoutInput = {};
  
    for (var i = 0; i < 3; i++) {
      layoutInput[paramsSet[1 - realIndex][i]] = fakeValue[i];
      layoutInput[reals[i]] = i === 2 ? itemSize[0] : modelOption[reals[i]];
    }
  
    var rParam = [['x', 'width', 3], ['y', 'height', 0]][realIndex];
    var rect = getLayoutRect(layoutInput, ecSize, modelOption.padding);
    return reals[(rect.margin[rParam[2]] || 0) + rect[rParam[0]] + rect[rParam[1]] * 0.5 < ecSize[rParam[1]] * 0.5 ? 0 : 1];
  }
  /**
   * Prepare dataIndex for outside usage, where dataIndex means rawIndex, and
   * dataIndexInside means filtered index.
   */
  
  
  function convertDataIndex(batch) {
    zrUtil.each(batch || [], function (batchItem) {
      if (batch.dataIndex != null) {
        batch.dataIndexInside = batch.dataIndex;
        batch.dataIndex = null;
      }
    });
    return batch;
  }
  
  exports.getItemAlign = getItemAlign;
  exports.convertDataIndex = convertDataIndex;