99 lines
2.3 KiB
Vue
99 lines
2.3 KiB
Vue
<template>
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<view>
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<canvas id="splashCanvas" canvas-id="splashCanvas" :style="{'width':width+'px','height':height+'px'}" style=" z-index: 9999;position: fixed; visibility: hidden;"></canvas>
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<qf-image-cropper :src="src" :showAngle="false" :width="cropWidth" :height="cropHeight" fileType="jpg"
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@crop="handleCrop" :gpu="true">
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</qf-image-cropper>
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</view>
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</template>
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<script>
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import QfImageCropper from '@/uni_modules/qf-image-cropper/components/qf-image-cropper/qf-image-cropper.vue';
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export default {
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components: {
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QfImageCropper
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},
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data() {
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return {
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src: "",
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Statu: false,
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width:160,
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height:80
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}
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},
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computed:{
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cropWidth(){
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return this.width*10;
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}
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,
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cropHeight(){
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return this.height*10;
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}
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},
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onLoad: function(option) {
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const eventChannel = this.getOpenerEventChannel();
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var these = this;
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eventChannel.on('checkImg', (rec)=> {
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console.log("我收到你的消息了，消息内容是：" + JSON.stringify(rec));
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this.src = rec.data;
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this.width=rec.width?rec.width:160;
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this.height=rec.height?rec.height:80;
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})
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},
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methods: {
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handleCrop(e) {
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var these = this;
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const eventChannel = these.getOpenerEventChannel();
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this.Statu = true;
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console.log("裁剪完成");
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console.log(e.tempFilePath);
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eventChannel.emit('ImgCutOver_Path',e.tempFilePath);
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const ctx = uni.createCanvasContext('splashCanvas', this);
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ctx.drawImage(
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e.tempFilePath,
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0,0,these.width,these.height
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);
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setTimeout(() => {
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ctx.draw(false, ()=>{
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console.log("abcdefg")
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uni.canvasGetImageData({
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canvasId: 'splashCanvas',
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x: 0,
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y: 0,
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width: these.width,
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height: these.height,
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success: (res) => {
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// 处理像素数据并发送
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console.log("res.data.length="+res.data.length);
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eventChannel.emit('ImgCutOverPath', {
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picPath: e.tempFilePath
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});
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eventChannel.emit('ImgCutOver',{piexls:res.data,picPath:e.tempFilePath});
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uni.navigateBack();
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},
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fail: (err) => {
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reject(`获取canvas数据失败: ${err.errMsg}`);
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}
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});
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});
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}, 500);
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}
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}
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}
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</script>
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<style>
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.canvas {
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border: 1px solid #ccc;
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}
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</style> |