Created
June 28, 2019 11:45
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Drawing rounded cornered rectangle in react-native ART.
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import React from 'react' | |
import { View, ART } from 'react-native' | |
import Rect from './Rect' | |
const {Surface} = ART | |
function App(){ | |
return( | |
<View style={{backgroundColor: 'rgba(37, 72, 101, 1.0)'}}> | |
<Surface width={300} height={300}> | |
<Rect width={100} height={100} fill={'yellow'} stroke={'green'} x={10} y={20} bottomRightRadius={100} bottomLeftRadius={20} topRightRadius={10}/> | |
<Rect strokeDash={[0,4]} width={20} height={100} fill={'rgba(255,0,0, 0.09)'} stroke={'red'} x={10} y={130} rc={50}/> | |
</Surface> | |
</View> | |
) | |
} |
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import React from 'react' | |
import PropTypes from 'prop-types' | |
import {ART} from 'react-native' | |
const {Group, Shape, Path} = ART | |
function Rect({fill, stroke, x, width, y, rc, height, topLeftRadius, topRightRadius, bottomRightRadius, bottomLeftRadius, ...rest}){ | |
const startX = 0; | |
const startY = 0; | |
const smallDimension = width > height ? height : width; | |
let tlr = topLeftRadius !== null ? topLeftRadius : rc; tlr = tlr > smallDimension/2 ? smallDimension /2 : tlr; | |
let trr = topRightRadius !== null ? topRightRadius : rc; trr = trr > smallDimension/2 ? smallDimension /2 : trr; | |
let brr = bottomRightRadius !== null ? bottomRightRadius : rc; brr = brr > smallDimension/2 ? smallDimension /2 : brr; | |
let blr = bottomLeftRadius !== null ? bottomLeftRadius : rc; blr = blr > smallDimension/2 ? smallDimension /2 : blr; | |
const d = Path() | |
.move(startX, startY) | |
.move(startX, tlr) | |
.arc( tlr, startY-tlr, tlr, tlr, false, false) // top left | |
.lineTo(width - trr, startY) | |
.arc( trr, startX+trr, trr, trr, false, false) // top right | |
.lineTo(width, startY+ (height - brr)) | |
.arc(startX-brr, brr, brr, brr, false, false) // bottom right | |
.lineTo(startX + blr, height) | |
.arc(startX-blr, startY-blr, blr, blr, false, false) // bottom right | |
.close() | |
return( | |
<Group x={x} y={y}> | |
<Shape {...rest} fill={fill} stroke={stroke} d={d}/> | |
</Group> | |
) | |
} | |
Rect.propTypes = { | |
width: PropTypes.number.isRequired, | |
height: PropTypes.number.isRequired, | |
x: PropTypes.number, | |
y: PropTypes.number, | |
fill: PropTypes.string, | |
stroke: PropTypes.string, | |
topLeftRadius: PropTypes.number, | |
topRightRadius: PropTypes.number, | |
bottomRightRadius: PropTypes.number, | |
bottomLeftRadius: PropTypes.number, | |
rc: PropTypes.number | |
} | |
Rect.defaultProps = { | |
x: 0, | |
y: 0, | |
fill: 'transparent', | |
stroke: 'red', | |
topLeftRadius: null, | |
topRightRadius: null, | |
bottomRightRadius: null, | |
bottomLeftRadius: null, | |
rc: 0 | |
} | |
export default Rect |
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React native ios device. rounded corner rectangles.