forked from apache/echarts
/
lineStyle.ts
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/
lineStyle.ts
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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 makeStyleMapper from './makeStyleMapper';
import Model from '../Model';
import { LineStyleOption } from '../../util/types';
import { PathStyleProps } from 'zrender/src/graphic/Path';
export const LINE_STYLE_KEY_MAP = [
['lineWidth', 'width'],
['stroke', 'color'],
['opacity'],
['shadowBlur'],
['shadowOffsetX'],
['shadowOffsetY'],
['shadowColor'],
['lineDash', 'dashArray'],
['lineDashOffset', 'dashOffset'],
['lineCap', 'cap'],
['lineJoin', 'join'],
['miterLimit']
];
const getLineStyle = makeStyleMapper(LINE_STYLE_KEY_MAP);
type LineStyleKeys = 'lineWidth'
| 'stroke'
| 'opacity'
| 'shadowBlur'
| 'shadowOffsetX'
| 'shadowOffsetY'
| 'shadowColor'
| 'lineDash'
| 'lineDashOffset'
| 'lineCap'
| 'lineJoin'
| 'miterLimit';
type LineStyleProps = Pick<PathStyleProps, LineStyleKeys>;
class LineStyleMixin {
getLineStyle(
this: Model,
excludes?: readonly (keyof LineStyleOption)[]
): LineStyleProps {
const style = getLineStyle(this, excludes);
// Always set lineDash whether dashed, otherwise we can not
// erase the previous style when assigning to el.style.
style.lineDash = this.getLineDash(style.lineWidth);
return style;
}
getLineDash(this: Model, lineWidth?: number): false | number[] {
const lineType = this.get('type');
if (lineType == null || lineType === 'solid') {
// Use `false` but not `null` for the solid line here, because `null` might be
// ignored when assigning to `el.style`. e.g., when setting `lineStyle.type` as
// `'dashed'` and `emphasis.lineStyle.type` as `'solid'` in graph series, the
// `lineDash` gotten form the latter one is not able to erase that from the former
// one if using `null` here according to the emhpsis strategy in `util/graphic.js`.
return false;
}
if (lineWidth == null) {
lineWidth = 1;
}
let dashArray = this.get('dashArray');
// compatible with single number
if (dashArray != null && !isNaN(dashArray)) {
dashArray = [+dashArray];
}
return lineType === 'dashed'
? dashArray || [lineWidth * 4]
: dashArray || [Math.max(lineWidth, 2)];
}
};
export {LineStyleMixin};