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优化小程序码的生成

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This commit is contained in:
zhl 2021-06-10 13:41:25 +08:00
parent accc2df829
commit 3a17a007e5
1 changed files with 14 additions and 15 deletions
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29
src/views/game/game_setting.vue
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@ -506,21 +506,20 @@ export default class extends Vue {
const canvas = document.getElementById('qr_canvas') as HTMLCanvasElement const canvas = document.getElementById('qr_canvas') as HTMLCanvasElement
if (!canvas) { if (!canvas) {
return false return false
} else { }
// 可以理解为一个画笔，可画路径、矩形、文字、图像 // 可以理解为一个画笔，可画路径、矩形、文字、图像
const context = canvas.getContext('2d') const context = canvas.getContext('2d')
context!.clearRect(0, 0, QR_WIDTH, QR_WIDTH) context!.clearRect(0, 0, QR_WIDTH, QR_WIDTH)
const img = new Image() const img = new Image()
img.src = this.qrUrl + '?t=' + new Date().getDate() img.src = this.qrUrl + '?t=' + new Date().getDate()
img.setAttribute('crossOrigin', 'Anonymous') img.setAttribute('crossOrigin', 'Anonymous')
// 加载图片 // 加载图片
img.onload = () => { img.onload = () => {
if (img.complete) { if (img.complete) {
// 绘制图片 // 绘制图片
context!.drawImage(img, 0, 0, QR_WIDTH, QR_WIDTH) context!.drawImage(img, 0, 0, QR_WIDTH, QR_WIDTH)
if (this.shopLogo) { if (this.shopLogo) {
this.drawLogo(context) this.drawLogo(context)
}
} }
} }
} }