lepu-test-platform-web/node_modules/echarts/lib/visual/LegendVisualProvider.js

75 lines
3.0 KiB
JavaScript

/*
* 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.
*/
/*
* 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.
*/
/**
* LegendVisualProvider is an bridge that pick encoded color from data and
* provide to the legend component.
* @param {Function} getDataWithEncodedVisual Function to get data after filtered. It stores all the encoding info
* @param {Function} getRawData Function to get raw data before filtered.
*/
function LegendVisualProvider(getDataWithEncodedVisual, getRawData) {
this.getAllNames = function () {
var rawData = getRawData(); // We find the name from the raw data. In case it's filtered by the legend component.
// Normally, the name can be found in rawData, but can't be found in filtered data will display as gray.
return rawData.mapArray(rawData.getName);
};
this.containName = function (name) {
var rawData = getRawData();
return rawData.indexOfName(name) >= 0;
};
this.indexOfName = function (name) {
// Only get data when necessary.
// Because LegendVisualProvider constructor may be new in the stage that data is not prepared yet.
// Invoking Series#getData immediately will throw an error.
var dataWithEncodedVisual = getDataWithEncodedVisual();
return dataWithEncodedVisual.indexOfName(name);
};
this.getItemVisual = function (dataIndex, key) {
// Get encoded visual properties from final filtered data.
var dataWithEncodedVisual = getDataWithEncodedVisual();
return dataWithEncodedVisual.getItemVisual(dataIndex, key);
};
}
var _default = LegendVisualProvider;
module.exports = _default;