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ForceGraphArrowLink.js
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ForceGraphArrowLink.js
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// Copyright (c) 2017 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
import React, { PureComponent } from 'react';
import PropTypes from 'prop-types';
import linkPropTypes from '../propTypes/link';
import { linkId } from '../utils/d3-force';
import ForceGraphLink from './ForceGraphLink';
export default class ForceGraphArrowLink extends PureComponent {
static get propTypes() {
return {
link: linkPropTypes.isRequired,
targetRadius: PropTypes.number,
};
}
static get defaultProps() {
return {
className: '',
opacity: 0.6,
stroke: '#999',
targetRadius: 2,
strokeWidth: 1,
};
}
render() {
const { link, targetRadius, ...spreadable } = this.props;
const id = `arrow-${linkId(link)}`;
return (
<g>
<defs>
<marker
id={id}
markerWidth={(targetRadius * 3) + 1}
markerHeight={(targetRadius * 3) + 1}
refX={(targetRadius * 3) + 1}
refY={targetRadius}
orient="auto"
markerUnits="strokeWidth"
>
{targetRadius > 0 && (
<path
d={`M0,0 L0,${targetRadius * 2} L${targetRadius * 3},${targetRadius} z`}
fill={spreadable.stroke || spreadable.color}
/>
)}
</marker>
</defs>
<ForceGraphLink {...spreadable} link={link} edgeOffset={targetRadius} markerEnd={`url(#${id})`} />
</g>
);
}
}