react/packages/react-art/npm/Rectangle.js

139 lines
3.0 KiB
JavaScript

/**
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
* @typechecks
*
* Example usage:
* <Rectangle
* width={50}
* height={50}
* stroke="green"
* fill="blue"
* />
*
* Additional optional properties:
* (Number) radius
* (Number) radiusTopLeft
* (Number) radiusTopRight
* (Number) radiusBottomLeft
* (Number) radiusBottomRight
*
*/
'use strict';
var assign = Object.assign;
var PropTypes = require('prop-types');
var React = require('react');
var ReactART = require('react-art');
var createReactClass = require('create-react-class');
var Shape = ReactART.Shape;
var Path = ReactART.Path;
/**
* Rectangle is a React component for drawing rectangles. Like other ReactART
* components, it must be used in a <Surface>.
*/
var Rectangle = createReactClass({
displayName: 'Rectangle',
propTypes: {
width: PropTypes.number.isRequired,
height: PropTypes.number.isRequired,
radius: PropTypes.number,
radiusTopLeft: PropTypes.number,
radiusTopRight: PropTypes.number,
radiusBottomRight: PropTypes.number,
radiusBottomLeft: PropTypes.number,
},
render: function render() {
var width = this.props.width;
var height = this.props.height;
var radius = this.props.radius ? this.props.radius : 0;
// if unspecified, radius(Top|Bottom)(Left|Right) defaults to the radius
// property
var tl = this.props.radiusTopLeft ? this.props.radiusTopLeft : radius;
var tr = this.props.radiusTopRight ? this.props.radiusTopRight : radius;
var br = this.props.radiusBottomRight
? this.props.radiusBottomRight
: radius;
var bl = this.props.radiusBottomLeft ? this.props.radiusBottomLeft : radius;
var path = Path();
// for negative width/height, offset the rectangle in the negative x/y
// direction. for negative radius, just default to 0.
if (width < 0) {
path.move(width, 0);
width = -width;
}
if (height < 0) {
path.move(0, height);
height = -height;
}
if (tl < 0) {
tl = 0;
}
if (tr < 0) {
tr = 0;
}
if (br < 0) {
br = 0;
}
if (bl < 0) {
bl = 0;
}
// disable border radius if it doesn't fit within the specified
// width/height
if (tl + tr > width) {
tl = 0;
tr = 0;
}
if (bl + br > width) {
bl = 0;
br = 0;
}
if (tl + bl > height) {
tl = 0;
bl = 0;
}
if (tr + br > height) {
tr = 0;
br = 0;
}
path.move(0, tl);
if (tl > 0) {
path.arc(tl, -tl);
}
path.line(width - (tr + tl), 0);
if (tr > 0) {
path.arc(tr, tr);
}
path.line(0, height - (tr + br));
if (br > 0) {
path.arc(-br, br);
}
path.line(-width + (br + bl), 0);
if (bl > 0) {
path.arc(-bl, -bl);
}
path.line(0, -height + (bl + tl));
return React.createElement(Shape, assign({}, this.props, {d: path}));
},
});
module.exports = Rectangle;