196 lines
4.1 KiB
Vue
196 lines
4.1 KiB
Vue
<template>
|
|
<view>
|
|
<view class="wanl-poster" @tap="close" :style="{paddingTop: topNum + 'px'}">
|
|
<canvas v-if="!tempFilePath" :canvas-id="canvasID" class="wanl-poster__canvas"
|
|
:style="{ width: canvasW + 'px', height: canvasH + 'px'}" />
|
|
<view v-else class="wanl-poster__main">
|
|
<view @tap.stop="">
|
|
<image lazy-load class="image" :src="tempFilePath" mode="widthFix" @longpress="toSave(tempFilePath)"/>
|
|
</view>
|
|
</view>
|
|
</view>
|
|
</view>
|
|
</template>
|
|
|
|
<script>
|
|
var that;
|
|
export default {
|
|
name: 'wanl-poster',
|
|
props: {
|
|
canvasID: {
|
|
Type: String,
|
|
default: 'PosterCanvas'
|
|
},
|
|
img: {
|
|
Type: String,
|
|
default: ''
|
|
}
|
|
},
|
|
data() {
|
|
return {
|
|
loading: false,
|
|
tempFilePath: '',
|
|
canvasW: 0,
|
|
canvasH: 0,
|
|
ctx: null,
|
|
topNum: 0
|
|
};
|
|
},
|
|
computed: {
|
|
},
|
|
created() {
|
|
uni.showLoading({
|
|
title: '海报生成中...'
|
|
});
|
|
that = this;
|
|
that.OnCanvas();
|
|
},
|
|
methods: {
|
|
async OnCanvas() {
|
|
that.loading = true;
|
|
that.ctx = uni.createCanvasContext(that.canvasID, this);
|
|
let imgurl = 'https://admin.dbcdq.cn/assets/img/icon/bg5.png'
|
|
// let imgurl = 'https://admin.dbcdq.cn/assets/img/icon/bg2.png'
|
|
//网络主图
|
|
let _imgInfo = await that.getImageInfo({
|
|
img: imgurl
|
|
});
|
|
that.canvasW = (uni.getSystemInfoSync().windowWidth/750)*520
|
|
that.canvasH = (uni.getSystemInfoSync().windowWidth/750)*764
|
|
that.topNum = 60
|
|
//canvas背景颜色
|
|
that.ctx.setFillStyle('transparent');
|
|
//canvas画布大小
|
|
that.ctx.fillRect(0, 0, that.canvasW, that.canvasH);
|
|
//添加图片展示
|
|
that.ctx.drawImage(_imgInfo.path, 0, 0, that.canvasW, that.canvasH);
|
|
let urlcode = await that.getCode();
|
|
let _qrcodeImg = await that.getImageInfo({img: urlcode});
|
|
|
|
this.$api.qrcode({},res=>{
|
|
if(res.code == '1'){
|
|
|
|
}
|
|
})
|
|
let h = that.canvasW/100*48
|
|
|
|
let left = that.canvasW/100*26
|
|
let top = that.canvasH/100*49.8
|
|
that.ctx.drawImage(_qrcodeImg.path, left, top, h, h);
|
|
// that.ctx.drawImage(_qrcodeImg.path, that.canvasW - 214, that.canvasH - 225, h, h);
|
|
//延迟后渲染至canvas上
|
|
setTimeout(function() {
|
|
console.log('14')
|
|
that.ctx.draw(true, ret => {
|
|
uni.hideLoading();
|
|
console.log('16')
|
|
that.getNewImage();
|
|
console.log('17')
|
|
});
|
|
console.log('15')
|
|
}, 500);
|
|
},
|
|
async getCode(){
|
|
return new Promise((resolve, errs) => {
|
|
this.$api.qrcode({},res=>{
|
|
if(res.code == '1'){
|
|
console.log(res.data.promotion_code,'dfffffqqq');
|
|
resolve(res.data.promotion_code);
|
|
}
|
|
})
|
|
});
|
|
},
|
|
async getImageInfo({
|
|
img
|
|
}) {
|
|
return new Promise((resolve, errs) => {
|
|
uni.getImageInfo({
|
|
src: img,
|
|
success: function(image) {
|
|
resolve(image);
|
|
},
|
|
fail(err) {
|
|
errs(err);
|
|
uni.showToast({
|
|
title: '海报生成失败',
|
|
mask: false,
|
|
duration: 2000,
|
|
icon: "none"
|
|
});
|
|
uni.hideLoading()
|
|
}
|
|
});
|
|
});
|
|
},
|
|
getNewImage() {
|
|
uni.canvasToTempFilePath({
|
|
canvasId: that.canvasID,
|
|
quality: 1,
|
|
complete: res => {
|
|
that.tempFilePath = res.tempFilePath;
|
|
that.loading = false;
|
|
that.$emit('success', res);
|
|
uni.hideLoading();
|
|
}
|
|
},
|
|
this
|
|
);
|
|
},
|
|
close() {
|
|
// this.$emit('close');
|
|
},
|
|
// 手动保存
|
|
toSave(url) {
|
|
uni.getImageInfo({
|
|
src: url,
|
|
success: function(image) {
|
|
uni.saveImageToPhotosAlbum({
|
|
filePath: image.path,
|
|
success: function() {
|
|
uni.showToast({
|
|
title: '海报已保存相册',
|
|
icon: 'success',
|
|
duration: 2000
|
|
});
|
|
}
|
|
});
|
|
}
|
|
});
|
|
}
|
|
}
|
|
};
|
|
</script>
|
|
|
|
<style lang="scss" scoped>
|
|
.wanl-poster {
|
|
&__canvas {
|
|
margin: 0 auto;
|
|
}
|
|
|
|
&__main {
|
|
position: relative;
|
|
margin: 0 auto;
|
|
width: 75%;
|
|
padding-bottom: 60rpx;
|
|
|
|
.image {
|
|
width: 100%;
|
|
border-radius: 20rpx;
|
|
overflow: hidden;
|
|
will-change: transform;
|
|
}
|
|
|
|
.close {
|
|
position: absolute;
|
|
top: 6rpx;
|
|
right: 4rpx;
|
|
|
|
.wlIcon {
|
|
font-size: 46rpx;
|
|
color: rgba(0, 0, 0, 0.5);
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
</style> |