282 lines
7.2 KiB
Vue
282 lines
7.2 KiB
Vue
<template>
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<view>
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<view class='poster-poster'>
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<view class='tip'><text class='iconfont icon-shuoming'></text>提示：点击图片即可保存至手机相册 </view>
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<!-- <view class='pictrue'>
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<image :src='image' mode="widthFix"></image>
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</view> -->
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<view class='pictrue' v-if="canvasStatus">
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<image :src='imagePath'></image>
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</view>
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<view class="canvas">
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<canvas style="width:750px;height:1130px;" canvas-id="firstCanvas" id="firstCanvas"></canvas>
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<canvas canvas-id="qrcode" :style="{width: `${qrcodeSize}px`, height: `${qrcodeSize}px`}" style="opacity: 0;"/>
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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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import { getCombinationPink, getCombinationPoster } from '../../../api/activity.js';
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import uQRCode from '@/js_sdk/Sansnn-uQRCode/uqrcode.js';
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import { imageBase64 } from "@/api/public";
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export default {
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data() {
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return {
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parameter: {
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'navbar': '1',
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'return': '1',
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'title': '拼团海报',
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'color': true,
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'class': '0'
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},
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type: 0,
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id: 0,
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image: '',
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from:'',
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storeCombination: {},
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qrcodeSize: 600,
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posterbackgd: '/static/images/canbj.png',
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PromotionCode: '',//二维码
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canvasStatus: false,
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imgTop: '' //商品图base64位
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}
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},
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onLoad(options) {
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// #ifdef MP
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this.from = 'routine'
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// #endif
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// #ifdef H5
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this.from = 'wechat'
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// #endif
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var that = this;
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if (options.hasOwnProperty('type') && options.hasOwnProperty('id')) {
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this.type = options.type
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this.id = options.id
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if (options.type == 1) {
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uni.setNavigationBarTitle({
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title: '砍价海报'
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})
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} else {
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uni.setNavigationBarTitle({
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title: '拼团海报'
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})
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}
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} else {
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return app.Tips({
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title: '参数错误',
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icon: 'none'
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}, {
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tab: 3,
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url: 1
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});
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}
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},
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onShow() {
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this.getPosterInfo();
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},
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methods: {
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getPosterInfo: function() {
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var that = this,url = '';
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let data = {
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pinkId: parseFloat(that.id),
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from: that.from
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};
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if (that.type == 1) {
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} else {
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this.getCombinationPink();
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}
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},
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//拼团信息
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getCombinationPink: function() {
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var that = this;
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getCombinationPink(this.id)
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.then(res => {
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this.storeCombination = res.data;
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this.getImageBase64(res.data.storeCombination.image);
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// #ifdef H5
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that.make(res.data.userInfo.uid);
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// #endif
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})
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.catch(err => {
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this.$util.Tips({
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title: err
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});
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uni.redirectTo({
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success(){},
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fail() {
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uni.navigateTo({
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url: '/pages/index/index',
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})
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}
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})
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});
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},
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getImageBase64:function(images){
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let that = this;
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imageBase64({url:images}).then(res=>{
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that.imgTop = res.data.code
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})
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},
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// 生成二维码；
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make(uid) {
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let href = location.protocol + '//' + window.location.host + '/pages/activity/goods_combination_status/index?id=' + this.id + "&spread=" + uid;
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uQRCode.make({
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canvasId: 'qrcode',
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text: href,
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size: this.qrcodeSize,
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margin: 10,
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success: res => {
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this.PromotionCode = res;
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let arrImages = [this.posterbackgd, this.imgTop, this.PromotionCode];
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let storeName = this.storeCombination.storeCombination.title;
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let price = this.storeCombination.storeCombination.price;
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let people = this.storeCombination.storeCombination.people;
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let otPrice = this.storeCombination.storeCombination.otPrice;
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let count = this.storeCombination.count;
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this.PosterCanvas(arrImages, storeName, price, people,otPrice,count);
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},
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complete: () => {
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},
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fail:res=>{
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this.$util.Tips({
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title: '海报二维码生成失败！'
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});
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}
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})
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},
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// 生成海报
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PosterCanvas:function(arrImages, storeName, price, people,otPrice,count){
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uni.showLoading({
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title: '海报生成中',
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mask: true
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});
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let context = uni.createCanvasContext('firstCanvas')
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context.clearRect(0, 0, 0, 0);
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let that = this;
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uni.getImageInfo({
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src: arrImages[0],
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success: function (image) {
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context.drawImage(arrImages[0], 0, 0, 750, 1190);
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context.setFontSize(36);
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context.setTextAlign('center');
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context.setFillStyle('#282828');
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let maxText = 17;
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let text = storeName;
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let topText = '';
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let bottomText = '';
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let len = text.length;
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if(len>maxText*2){
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text = text.slice(0,maxText*2-4)+'......';
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topText = text.slice(0,maxText-1);
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bottomText = text.slice(maxText-1,len);
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}else{
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if(len>maxText){
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topText = text.slice(0,maxText-1);
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bottomText = text.slice(maxText-1,len);
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}else{
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topText = text;
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bottomText = '';
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}
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}
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context.fillText(topText, 750/2, 60);
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context.fillText(bottomText, 750/2, 100);
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context.drawImage(arrImages[1], 150, 350, 450, 450);
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context.save();
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context.drawImage(arrImages[2], 300, 950, 140, 140);
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context.restore();
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context.setFontSize(72);
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context.setFillStyle('#fc4141');
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context.fillText(price, 220, 210);
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context.setFontSize(32);
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context.setFillStyle('#FFFFFF');
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context.fillText( people+'人团', 538, 198);
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context.setFontSize(26);
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context.setFillStyle('#3F3F3F');
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context.setTextAlign('center');
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context.fillText( '原价：￥'+otPrice +' 还差 ' + count + '人 拼团成功', 750 / 2, 275);
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context.draw(true,function(){
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uni.canvasToTempFilePath({
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destWidth: 750,
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destHeight: 1190,
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canvasId: 'firstCanvas',
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fileType: 'jpg',
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success: function(res) {
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// 在H5平台下，tempFilePath 为 base64
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uni.hideLoading();
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that.imagePath = res.tempFilePath;
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that.canvasStatus = true;
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}
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})
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})
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},
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fail: function(err) {
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uni.hideLoading();
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that.$util.Tips({
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title: '无法获取图片信息'
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});
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}
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})
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},
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showImage: function() {
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var that = this;
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let imgArr = this.image.split(',')
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uni.previewImage({
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urls: imgArr,
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longPressActions: {
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itemList: ['发送给朋友', '保存图片', '收藏'],
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success: function(data) {
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console.log('选中了第' + (data.tapIndex + 1) + '个按钮,第' + (data.index + 1) + '张图片');
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},
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fail: function(err) {
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console.log(err.errMsg);
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}
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}
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});
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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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page {
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background-color: #d22516 !important;
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}
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.canvas {
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position:fixed;
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z-index: -5;
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opacity: 0;
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}
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.poster-poster .tip {
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height: 80rpx;
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font-size: 26rpx;
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color: #e8c787;
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text-align: center;
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line-height: 80rpx;
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}
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.poster-poster .tip .iconfont {
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font-size: 36rpx;
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vertical-align: -4rpx;
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margin-right: 18rpx;
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}
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.poster-poster .pictrue {
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width: 690rpx;
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height: 1130rpx;
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margin: 0 auto 50rpx auto;
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}
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.poster-poster .pictrue image {
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width: 100%;
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height: 100%;
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}
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</style>
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