helper.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.
*/

import * as graphic from '../../util/graphic';
import {getDefaultLabel} from '../helper/labelHelper';

export function setLabel(
    normalStyle, hoverStyle, itemModel, color, seriesModel, dataIndex, labelPositionOutside
) {
    var labelModel = itemModel.getModel('label');
    var hoverLabelModel = itemModel.getModel('emphasis.label');

    graphic.setLabelStyle(
        normalStyle, hoverStyle, labelModel, hoverLabelModel,
        {
            labelFetcher: seriesModel,
            labelDataIndex: dataIndex,
            defaultText: getDefaultLabel(seriesModel.getData(), dataIndex),
            isRectText: true,
            autoColor: color
        }
    );

    fixPosition(normalStyle);
    fixPosition(hoverStyle);
}

function fixPosition(style, labelPositionOutside) {
    if (style.textPosition === 'outside') {
        style.textPosition = labelPositionOutside;
    }
}