424 lines
13 KiB
Vue
424 lines
13 KiB
Vue
<template>
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<view>
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<view class="wanl-poster" @tap="close" :style="{paddingTop: topNum + 'px'}">
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<canvas v-if="!tempFilePath" :canvas-id="canvasID" class="wanl-poster__canvas"
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:style="{ width: canvasW + 'px', height: canvasH + 'px'}" />
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<view v-else class="wanl-poster__main">
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<view @tap.stop="">
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<image lazy-load class="image" :src="tempFilePath" mode="widthFix" @longpress="toSave(tempFilePath)"/>
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</view>
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</view>
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</view>
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</view>
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</template>
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<script>
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var that;
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import {mapState} from 'vuex';
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export default {
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name: 'wanl-poster',
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props: {
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canvasID: {
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Type: String,
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default: 'PosterCanvas'
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},
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img: {
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Type: String,
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default: ''
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},
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price: {
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Type: String,
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default: ''
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},
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marketPrice: {
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Type: String,
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default: ''
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},
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title: {
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Type: String,
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default: '勉学优品'
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},
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page: {
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Type: String,
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default: ''
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},
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scene: {
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type: Object,
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default () {
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return {}
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}
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}
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},
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data() {
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return {
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config: {},
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loading: false,
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lineType: true,
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mpQrcodeUrl: '',
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tempFilePath: '',
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canvasW: 0,
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canvasH: 0,
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ctx: null,
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topNum: 0
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};
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},
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computed: {
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...mapState(['user', 'common'])
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},
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created() {
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uni.showLoading({
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title: '海报生成中...'
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});
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that = this;
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that.OnCanvas();
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},
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methods: {
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async OnCanvas() {
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that.loading = true;
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that.ctx = uni.createCanvasContext(that.canvasID, this);
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let imgurl = 'https://admin.dbcdq.cn/assets/img/icon/bg3.png'
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// let imgurl = 'https://admin.dbcdq.cn/assets/img/icon/bg2.png'
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//网络主图
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let _imgInfo = await that.getImageInfo({
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img: imgurl
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});
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that.canvasW = (uni.getSystemInfoSync().windowWidth/750)*520
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that.canvasH = (uni.getSystemInfoSync().windowWidth/750)*764
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that.topNum = 40
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//canvas背景颜色
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that.ctx.setFillStyle('#fff');
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//canvas画布大小
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that.ctx.fillRect(0, 0, that.canvasW, that.canvasH);
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//添加图片展示
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that.ctx.drawImage(_imgInfo.path, 0, 0, that.canvasW, that.canvasH);
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let _qrcodeImg = await that.getImageInfo({img: 'https://admin.dbcdq.cn/assets/img/icon/qrcodebg.png'});
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this.$api.qrcode({},res=>{
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if(res.code == '1'){
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}
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})
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that.ctx.drawImage(_imgInfo.path, that.canvasW - 80, that.canvasH - 80, 50,50);
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//延迟后渲染至canvas上
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setTimeout(function() {
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console.log('14')
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that.ctx.draw(true, ret => {
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uni.hideLoading();
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console.log('16')
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that.getNewImage();
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console.log('17')
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});
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console.log('15')
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}, 500);
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},
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async OnCanvas2() {
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console.log('1',uni.getSystemInfoSync().windowHeight)
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// that.common.appConfig.poster_env = 'develop' //设置成跳转开发版小程序
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that.loading = true;
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that.ctx = uni.createCanvasContext(that.canvasID, this);
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console.log('2--',that.common,that.common.appConfig.poster_width)
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that.common.appConfig.poster_width = (uni.getSystemInfoSync().windowWidth/750)*520//500
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const canvasWidth = uni.upx2px(that.common.appConfig.poster_width - 0), //设置海报宽度
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//canvas Paddng 间距
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margin = uni.upx2px(0),
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//二维码或太阳码宽高
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qrcodeWidth = uni.upx2px(150);
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console.log('2',that.common.appConfig.poster_width)
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//文本宽度
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let _strlineW = 0;
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console.log('3')
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let imgurl = 'https://admin.dbcdq.cn/assets/img/icon/bg3.png'
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// let imgurl = 'https://admin.dbcdq.cn/assets/img/icon/bg2.png'
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//网络主图
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let _imgInfo = await that.getImageInfo({
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// img: that.img ? that.$wanlshop.oss(that.img, 400, 0) : that.$wanlshop.oss(that.common.appConfig.poster_image, 400, 0)
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img: imgurl//that.img ? that.common.uploaddata.cdnurl+that.img : that.common.uploaddata.cdnurl+that.common.appConfig.poster_image
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});
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console.log('4')
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let r = [_imgInfo.width, _imgInfo.height];
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let imgW = canvasWidth - margin * 2;
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if (r[0] != imgW) {
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r[1] = Math.floor((imgW / r[0]) * r[1]);
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r[0] = imgW;
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}
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that.canvasW = (uni.getSystemInfoSync().windowWidth/750)*520//canvasWidth;
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console.log('2')
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// 是否存在价格行
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// #ifdef MP
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if (that.price != '') {
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that.canvasH = r[1] + qrcodeWidth + 120;
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} else {
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that.canvasH = r[1] + qrcodeWidth + 85;
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}
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// #endif
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// #ifndef MP
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if (that.price != '') {
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that.canvasH = r[1] + qrcodeWidth + 114;
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} else {
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that.canvasH = r[1] + qrcodeWidth + 80;
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}
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that.canvasH = (uni.getSystemInfoSync().windowWidth/750)*764
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let h = (uni.getSystemInfoSync().windowWidth/750)*764
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let w = (uni.getSystemInfoSync().windowWidth/750)*520
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// #endif
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console.log('5',(uni.getSystemInfoSync().windowHeight/750)*764)
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that.topNum = 40//uni.getSystemInfoSync().windowHeight/2 - that.canvasH/2
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//canvas背景颜色
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// that.ctx.setFillStyle(that.common.appConfig.poster_background);
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that.ctx.setFillStyle('#fff');
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//canvas画布大小
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that.ctx.fillRect(0, 0, that.canvasW, that.canvasH);
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//添加图片展示
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that.ctx.drawImage(_imgInfo.path, margin, margin, that.canvasW, that.canvasH);
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//添加图片展示 end
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console.log('6',margin,r,canvasWidth)
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//设置文本
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that.ctx.setFontSize(uni.upx2px(32)); //设置标题字体大小
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that.ctx.setFillStyle(that.common.appConfig.poster_title_color); //设置标题文本颜色
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let _strLastIndex = 0; //每次开始截取的字符串的索引
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let _strHeight = r[1] + margin * 2 + 15; //绘制字体距离canvas顶部的初始高度
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let _num = 1;
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console.log('7')
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let title = ['ddd','fff']//that.title ? that.title : that.common.appConfig.poster_title;
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// for (let i = 0; i < title.length-1; i++) {console.log('2')
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// _strlineW += that.ctx.measureText(title[i]).width;
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// if (_strlineW > r[0]) {
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// if (_num == 2 && that.lineType) {
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// //文字换行数量大于二进行省略号处理
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// that.ctx.fillText(title.substring(_strLastIndex, i - 2) + '...', margin, _strHeight);
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// _strlineW = 0;
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// _strLastIndex = i;
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// _num++;
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// break;
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// } else {
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// that.ctx.fillText(title.substring(_strLastIndex, i), margin, _strHeight);
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// _strlineW = 0;
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// _strHeight += 20;
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// _strLastIndex = i;
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// _num++;
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// }
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// } else if (i == title.length - 1) {
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// that.ctx.fillText(title.substring(_strLastIndex, i + 1), margin, _strHeight);
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// _strlineW = 0;
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// }
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// }
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//设置文本 end
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console.log('7')
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//设置价格
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if (that.price != '') {
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_strlineW = margin;
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_strHeight += uni.upx2px(60);
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if (_num == 1) {
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_strHeight += 20; //单行标题时占位符
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}
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if (that.price != '') {
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//判断是否有销售价格
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that.ctx.setFillStyle(that.common.appConfig.poster_price_color);
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that.ctx.setFontSize(uni.upx2px(38));
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that.ctx.fillText('￥' + that.price, _strlineW, _strHeight); //商品价格
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_strlineW += that.ctx.measureText('￥' + that.price).width + uni.upx2px(10);
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}
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//商品原价
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that.ctx.setFillStyle(that.common.appConfig.poster_original_color);
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that.ctx.setFontSize(uni.upx2px(24));
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that.ctx.fillText(that.marketPrice, _strlineW, _strHeight);
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// 删除线
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that.ctx.strokeStyle = that.common.appConfig.poster_original_color;
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that.ctx.moveTo(_strlineW, _strHeight - uni.upx2px(10)); //起点
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that.ctx.lineTo(_strlineW + that.ctx.measureText(that.marketPrice).width, _strHeight - uni.upx2px(10)); //终点
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that.ctx.stroke();
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}
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//设置价格 end
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console.log('1')
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let _qrcodeImg = await that.getImageInfo({img: 'https://admin.dbcdq.cn/assets/img/icon/qrcodebg.png'});
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//添加二维码 drawImage(图片, 左边距, 上边距, 宽度, 高度);
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// let _qrcodeImg = await that.getImageInfo({img: `${that.$wanlshop.config('appurl')}/wanlshop/common/qrcode?width=${qrcodeWidth}&page=${encodeURIComponent(that.page + '?' + that.$wanlshop.parseParams(JSON.parse(JSON.stringify(that.scene).replace('"i"','"id"'))))}`});
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_strHeight += uni.upx2px(20);
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// #ifdef APP || H5 || MP-WEIXIN
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// 微信二维码
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// 展示全部二维码
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console.log('1')
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// if (that.common.appConfig.poster_qrcode == '0') {
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// that.ctx.drawImage(_qrcodeImg.path, r[0] - qrcodeWidth + margin, _strHeight, qrcodeWidth,qrcodeWidth);
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// let _mpQrcodeImg = await that.getImageInfo({img: `${that.$wanlshop.config('appurl')}/wanlshop/common/mpQrcode?data=${encodeURIComponent(JSON.stringify({
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// page:that.page,
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// scene: that.scene,
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// width: qrcodeWidth,
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// env: that.common.appConfig.poster_env
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// }))}`});
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// that.ctx.drawImage(_mpQrcodeImg.path, r[0] - qrcodeWidth - qrcodeWidth, _strHeight, qrcodeWidth,qrcodeWidth);
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// // 展示小程序码
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// } else if (that.common.appConfig.poster_qrcode == '1') {
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// let _mpQrcodeImg = await that.getImageInfo({img: `${that.$wanlshop.config('appurl')}/wanlshop/common/mpQrcode?data=${encodeURIComponent(JSON.stringify({
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// page:that.page,
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// scene: that.scene,
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// width: qrcodeWidth,
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// env: that.common.appConfig.poster_env
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// }))}`});
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// that.ctx.drawImage(_mpQrcodeImg.path, r[0] - qrcodeWidth + margin, _strHeight, qrcodeWidth,qrcodeWidth);
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// // 展示普通二维码
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// } else if (that.common.appConfig.poster_qrcode == '2') {
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// // 生成二维码
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// that.ctx.drawImage(_qrcodeImg.path, r[0] - qrcodeWidth + margin, _strHeight, qrcodeWidth,qrcodeWidth);
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// }else{
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// let _mpQrcodeImg = await that.getImageInfo({img: `${that.$wanlshop.config('appurl')}/wanlshop/common/mpQrcode?data=${encodeURIComponent(JSON.stringify({
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// page:that.page,
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// scene: that.scene,
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// width: qrcodeWidth,
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// env: that.common.appConfig.poster_env
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// }))}`});
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// that.ctx.drawImage(_mpQrcodeImg.path, r[0] - qrcodeWidth + margin, _strHeight, qrcodeWidth,qrcodeWidth);
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// }
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this.$api.qrcode({},res=>{
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if(res.code == '1'){
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}else{
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uni.showToast({ title: res.msg , icon: 'none' })
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}
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})
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// #endif
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console.log('12',_qrcodeImg.path)
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that.ctx.drawImage(_imgInfo.path, w - 80, h - 80, 50,50);
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// #ifndef APP || H5 || MP-WEIXIN
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// that.ctx.drawImage(_imgInfo.path, 0, 0, 50,50);
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// 生成二维码
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// that.ctx.drawImage(_qrcodeImg.path, r[0] - qrcodeWidth + margin, _strHeight, qrcodeWidth,qrcodeWidth);
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// #endif
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//添加二维码 end
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console.log('12')
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//添加推荐人与描述
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let username = that.user.isLogin ? '@' + that.user.nickname : that.common.appConfig.poster_user;
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// that.ctx.setFillStyle(that.common.appConfig.poster_title_color);
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that.ctx.setFontSize(uni.upx2px(30));
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console.log('13')
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// that.ctx.fillText(username, margin, _strHeight + qrcodeWidth / 2);
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// that.ctx.setFillStyle(that.common.appConfig.poster_original_color);
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console.log('12')
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that.ctx.setFontSize(uni.upx2px(24));
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// that.ctx.fillText(that.common.appConfig.poster_viewDetails, margin, _strHeight + qrcodeWidth / 2 + 20);
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//添加推荐人与描述 end
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console.log('13')
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//延迟后渲染至canvas上
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setTimeout(function() {
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console.log('14')
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that.ctx.draw(true, ret => {
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uni.hideLoading();
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console.log('16')
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that.getNewImage();
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console.log('17')
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});
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console.log('15')
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}, 500);
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},
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async getImageInfo({
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img
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}) {
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console.log(img,'----------')
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return new Promise((resolve, errs) => {
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uni.getImageInfo({
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src: img,
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success: function(image) {
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resolve(image);
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},
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fail(err) {
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errs(err);
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uni.showToast({
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title: '海报生成失败',
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mask: false,
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duration: 2000,
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icon: "none"
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});
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uni.hideLoading()
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}
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});
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});
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},
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getNewImage() {
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console.log(that.canvasID,'----------+++')
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uni.canvasToTempFilePath({
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canvasId: that.canvasID,
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quality: 1,
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complete: res => {
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console.log(that.canvasID,res,'ffffff')
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that.tempFilePath = res.tempFilePath;
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that.loading = false;
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that.$emit('success', res);
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uni.hideLoading();
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}
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},
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this
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);
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},
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close() {
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this.$emit('close');
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},
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// 手动保存
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toSave(url) {
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//#ifndef H5
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uni.getImageInfo({
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src: url,
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success: function(image) {
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uni.saveImageToPhotosAlbum({
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filePath: image.path,
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success: function() {
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uni.showToast({
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title: '海报已保存相册',
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icon: 'success',
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duration: 2000
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});
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}
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});
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}
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});
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//#endif
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}
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}
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};
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</script>
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<style lang="scss" scoped>
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.wanl-poster {
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&__canvas {
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margin: 0 auto;
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}
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&__main {
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position: relative;
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margin: 0 auto;
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width: 75%;
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padding-bottom: 60rpx;
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.image {
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width: 100%;
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border-radius: 20rpx;
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overflow: hidden;
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will-change: transform;
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}
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.close {
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position: absolute;
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top: 6rpx;
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right: 4rpx;
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.wlIcon {
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font-size: 46rpx;
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color: rgba(0, 0, 0, 0.5);
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}
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}
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}
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}
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</style> |