/megerCanvas.js Secret
Created
May 5, 2018 08:20
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| import React from 'react' | |
| import {connect} from 'react-redux'; | |
| import {Route, Switch,} from 'dva/router' | |
| import Konva from 'konva' | |
| import {Stage, Layer, Rect, Text} from 'react-konva'; | |
| class MegerCanvas extends React.Component { | |
| showImageO(beauty) { | |
| var mycv = document.getElementById("canvasForO"); | |
| var ctx = mycv.getContext("2d"); | |
| ctx.drawImage(beauty, 0, 0); | |
| } | |
| showImageHalfUp(beauty) { | |
| var mycv = document.getElementById("canvasForNew"); | |
| var ctx = mycv.getContext("2d"); | |
| var beautyW = beauty.width | |
| var beautyH = beauty.height | |
| ctx.drawImage(beauty, | |
| 0, 0, beautyW, beautyH / 2, | |
| beautyW, beautyH + beautyH / 2, beautyW, beautyH / 2); | |
| } | |
| showImageRight(beauty) { | |
| var mycv = document.getElementById("canvasForNew"); | |
| var ctx = mycv.getContext("2d"); | |
| var beautyW = beauty.width; | |
| var beautyH = beauty.height; | |
| ctx.drawImage(beauty, | |
| 0, 0, beautyW, beautyH, | |
| beautyW, beautyH / 2, beautyW, beautyH); | |
| } | |
| showImageHalfDown(beauty) { | |
| var mycv = document.getElementById("canvasForNew"); | |
| var ctx = mycv.getContext("2d"); | |
| var beautyW = beauty.width | |
| var beautyH = beauty.height | |
| ctx.drawImage(beauty, | |
| 0, beautyH / 2, beautyW, beautyH / 2, | |
| beautyW, 0, beautyW, beautyH / 2); | |
| } | |
| showImageLeft1(beauty) { | |
| var mycv = document.getElementById("canvasForNew"); | |
| var ctx = mycv.getContext("2d"); | |
| var beautyW = beauty.width; | |
| var beautyH = beauty.height; | |
| ctx.drawImage(beauty, | |
| 0, 0, beautyW, beautyH, | |
| 0, 0, beautyW, beautyH); | |
| } | |
| showImageLeft2(beauty) { | |
| var mycv = document.getElementById("canvasForNew"); | |
| var ctx = mycv.getContext("2d"); | |
| var beautyW = beauty.width; | |
| var beautyH = beauty.height; | |
| ctx.drawImage(beauty, | |
| 0, 0, beautyW, beautyH, | |
| 0, beautyH, beautyW, beautyH); | |
| } | |
| render() { | |
| return <div> | |
| <canvas id="canvasForO" width={1000} height={1000} style={{background: "red"}}></canvas> | |
| <canvas id="canvasForNew" width={1000} height={1000} style={{background: "#eee"}}></canvas> | |
| </div> | |
| } | |
| componentDidMount() { | |
| var image = new Image(); | |
| image.src = "http://p7whtc26y.bkt.clouddn.com/18-4-30/62319414.jpg" | |
| image.onload = () => { | |
| this.showImageO(image) | |
| this.showImageLeft1(image) | |
| this.showImageLeft2(image) | |
| this.showImageHalfDown(image) | |
| this.showImageRight(image) | |
| this.showImageHalfUp(image) | |
| } | |
| } | |
| } | |
| function mapStateToProps(state) { | |
| return {store: state} | |
| } | |
| export default connect(mapStateToProps)(MegerCanvas) |
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