813 lines
20 KiB
JavaScript
813 lines
20 KiB
JavaScript
// index.js
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// 获取应用实例
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let index = 0, // 当前点击图片的index
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items = [], // 图片数组信息
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itemId = 1, // 图片id，用于识别点击图片
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fliter = 'init', // 默认过滤类型（原图）
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shape = 'init'; // 默认形状（原图）
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const hCw = 1.62; // 图片宽高比
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const canvasPre = 1; // 展示的canvas占mask的百分比
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const maskCanvas = wx.createCanvasContext('maskCanvas', this); // 创建 canvas 的绘图上下文 CanvasContext 对象
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const util = require('../../utils/util.js');
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var urlPath = require('../../config.js');
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Page({
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/**
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* 页面的初始数据
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*/
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data: {
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isLogin: false, //是否授权
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funBox: true, //功能框
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itemList: [],
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showBtn: false, //按钮
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showBox: false, //弹框
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// titlelist: ['脸谱', '背景', '按钮', '川剧', '人物', '文字', '装饰'],
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titlelist: [],
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titleIndex: '-1',
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allList: [
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'../../img/background/1.png',
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],
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allIndex: '-1',
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isOk: false,
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isNo: false,
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closeTime: null,
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titleVal:'',
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showTitle:false,
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times:0,
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haveData:true,
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worksImg:false,
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creat_close:true,
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currentIndex:0,
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worksBox:false,
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isloading:false
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},
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// 下一个
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nextEv(){
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if(this.data.allList.length-5 >= this.data.currentIndex) {
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this.setData({
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currentIndex:this.data.currentIndex + 1
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})
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}
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},
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// 上一个
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preEv(){
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if(this.data.currentIndex!=0) {
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this.setData({
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currentIndex:this.data.currentIndex - 1
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})
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}
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},
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changeCurrent(e){
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this.setData({
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currentIndex:e.detail.current
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})
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},
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// 创建作品按钮
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creatWorks(){
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this.setData({
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funBox:false,
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worksBox:true,
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creat_close:false
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})
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},
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// 收起创作
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closeWorks(){
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this.setData({funBox:true,worksBox:false,creat_close:true})
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},
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chooseTitle(e) {
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if(this.data.isloading==false) {
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let that = this;
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if (that.data.titleIndex != e.currentTarget.dataset.index) {
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that.setData({
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allIndex: '-1'
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})
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}
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this.setData({
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titleIndex: e.currentTarget.dataset.index,
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showBtn: true,
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worksImg:true,
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currentIndex:0
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})
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this.getBottleWidgets(that.data.titlelist[that.data.titleIndex].id);
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}
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},
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chooseImg(e) {
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let that = this;
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that.setData({
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allIndex: e.currentTarget.dataset.index,
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showBox: false,
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showBtn: false
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})
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if (that.data.titleIndex == 0) {
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wx.getStorage({ //获取本地缓存
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key: that.data.allList[that.data.allIndex].img,
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success: function(res) {
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console.log(res);
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that.setBackGroundImg({
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url: res.data
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});
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},
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})
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} else {
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wx.getStorage({ //获取本地缓存
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key: that.data.allList[that.data.allIndex].img,
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success: function(res) {
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that.setDropItem({
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url: res.data
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});
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},
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})
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}
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},
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titleInput(e){
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this.setData({
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titleVal:e.detail.value
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})
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},
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submit(){
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if(this.data.titleVal==''){
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wx.showToast({title:'请输入标题',icon:'none'})
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} else {
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wx.showToast({title:'设置标题成功',icon:'none'})
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this.setData({showTitle:false})
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}
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},
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onShow: function() {
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if (typeof this.getTabBar === 'function' &&
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this.getTabBar()) {
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this.getTabBar().setData({
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selected: 0
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})
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}
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},
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/**
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* 生命周期函数--监听页面加载
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*/
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onLoad: function(options) {
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let that = this;
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items = this.data.itemList;
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wx.getSystemInfo({ // 获取系统信息
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success: sysData => {
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this.sysData = sysData;
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// 设置画布宽高，this.sysData.windowWidth为屏幕的宽度
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this.setData({
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canvasWidth: this.sysData.windowWidth *
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canvasPre, // 如果觉得不清晰的话，可以把所有组件、宽高放大一倍
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canvasHeight: this.sysData.windowWidth * canvasPre * hCw,
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backGroundWidth: this.sysData.windowWidth,
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backGroundHeight: this.sysData.screenHeight
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})
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}
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})
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// 换取token
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wx.login({
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success: res => {
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wx.request({
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url: urlPath.getopenid,
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method: 'post',
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data: {code: res.code},
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success(res) {
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if (res.data.code == 0) {
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wx.setStorageSync('token', res.data.data.token);
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wx.setStorageSync('username', res.data.data.user.wx_name);
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that.setBackGroundImg({
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url: '../../img/background/3.png'
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});
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that.getBottleCategories();
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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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// 上传图片
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uploadImg() {
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let that = this;
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wx.chooseImage({
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count: 1,
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sizeType: ['original', 'compressed'],
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sourceType: ['album', 'camera'],
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success(res) {
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// tempFilePath可以作为img标签的src属性显示图片
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that.setDropItem({
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url: res.tempFilePaths[0]
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});
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}
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})
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},
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// 设置背景图片
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setBackGroundImg(imgData) {
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let data = {}; // 存储图片信息
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// 获取图片信息，网络图片需先配置download域名才能生效
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wx.getImageInfo({
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src: imgData.url,
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success: res => {
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// 初始化数据
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let maxWidth = this.data.backGroundWidth,
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maxHeight = this.data.backGroundHeight; // 设置最大宽高
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if (res.width > maxWidth || res.height > maxHeight) { // 原图宽或高大于最大值就执行
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if (res.width / res.height > maxWidth / maxHeight) { // 判断比例使用最大值的宽或高作为基数计算
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data.width = maxWidth;
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data.height = Math.round(maxWidth * (res.height / res.width));
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} else {
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data.height = maxHeight;
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data.width = Math.round(maxHeight * (res.width / res.height));
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}
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}
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data.image = imgData.url; // 显示地址
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data.initImage = imgData.url; // 原始地址
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// data.id = ++itemId; // id
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data.id = 2; // id
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data.top = 0; // top定位
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data.left = 0; // left定位
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// 圆心坐标
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data.x = data.left + data.width / 2;
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data.y = data.top + data.height / 2;
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data.scale = 1; // scale缩放
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data.rotate = 1; // 旋转角度
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data.active = false; // 选中状态
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data.angle = 0;
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items[0] = data; // 每增加一张图片数据增加一条信息
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this.setData({
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itemList: items
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})
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}
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})
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},
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// 设置图片的信息
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setDropItem(imgData) {
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let data = {}; // 存储图片信息
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// 获取图片信息，网络图片需先配置download域名才能生效
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wx.getImageInfo({
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src: imgData.url,
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success: res => {
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// 初始化数据
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let maxWidth = 150,
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maxHeight = 150; // 设置最大宽高
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if (res.width > maxWidth || res.height > maxHeight) { // 原图宽或高大于最大值就执行
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if (res.width / res.height > maxWidth / maxHeight) { // 判断比例使用最大值的宽或高作为基数计算
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data.width = maxWidth;
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data.height = Math.round(maxWidth * (res.height / res.width));
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} else {
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data.height = maxHeight;
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data.width = Math.round(maxHeight * (res.width / res.height));
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}
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}
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data.image = imgData.url; // 显示地址
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data.initImage = imgData.url; // 原始地址
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data.id = ++itemId + 1; // id
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data.top = 10; // top定位
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data.left = 10; // left定位
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// 圆心坐标
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data.x = data.left + data.width / 2;
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data.y = data.top + data.height / 2;
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data.scale = 1; // scale缩放
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data.rotate = 1; // 旋转角度
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data.active = false; // 选中状态
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data.angle = 0;
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items[items.length] = data; // 每增加一张图片数据增加一条信息
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this.setData({
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itemList: items
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})
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}
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})
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},
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// 点击图片
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WraptouchStart: function(e) {
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if (e.currentTarget.dataset.id != 2) {
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// 循环图片数组获取点击的图片信息
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for (let i = 0; i < items.length; i++) {
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items[i].active = false;
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if (e.currentTarget.dataset.id == items[i].id) {
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index = i;
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items[index].active = true;
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}
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}
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this.setData({
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itemList: items
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})
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// 获取点击的坐标值
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items[index].lx = e.touches[0].clientX;
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items[index].ly = e.touches[0].clientY;
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}
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if(this.data.funBox){
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if(!this.data.worksBox) {
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this.setData({
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funBox: false,
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creat_close:true
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})
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} else {
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this.setData({
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funBox: false,
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})
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}
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} else {
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if(!this.data.creat_close){
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this.setData({
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worksBox:false,
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creat_close:false
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})
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}
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}
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},
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// 拖动图片
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WraptouchMove(e) {
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if (e.currentTarget.dataset.id != 2) {
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items[index]._lx = e.touches[0].clientX;
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items[index]._ly = e.touches[0].clientY;
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items[index].left += items[index]._lx - items[index].lx;
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items[index].top += items[index]._ly - items[index].ly;
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items[index].x += items[index]._lx - items[index].lx;
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items[index].y += items[index]._ly - items[index].ly;
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items[index].lx = e.touches[0].clientX;
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items[index].ly = e.touches[0].clientY;
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this.setData({
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itemList: items,
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showBtn: true,
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worksBox:false
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})
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this.showWorksBtn();
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}
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},
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// 放开图片
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WraptouchEnd() {
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this.synthesis(); // 调用合成图方法
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this.showWorksBtn();
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},
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// 显示创作按钮
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showWorksBtn(){
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clearTimeout(this.data.closeTime);
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this.data.closeTime = setTimeout(() => {
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this.setData({showBtn: false})
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if(this.data.creat_close){
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this.setData({funBox:true})
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} else {
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this.setData({worksBox:true})
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}
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}, 1000)
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},
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// 点击伸缩图标
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oTouchStart(e) {
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//找到点击的那个图片对象，并记录
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for (let i = 0; i < items.length; i++) {
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items[i].active = false;
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if (e.currentTarget.dataset.id == items[i].id) {
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index = i;
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items[index].active = true;
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}
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}
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//获取作为移动前角度的坐标
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items[index].tx = e.touches[0].clientX;
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items[index].ty = e.touches[0].clientY;
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//移动前的角度
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items[index].anglePre = this.countDeg(items[index].x, items[index].y, items[index].tx, items[index].ty);
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//获取图片半径
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items[index].r = this.getDistancs(items[index].x, items[index].y, items[index].left, items[index].top);
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},
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oTouchMove: function(e) {
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//记录移动后的位置
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items[index]._tx = e.touches[0].clientX;
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items[index]._ty = e.touches[0].clientY;
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//移动的点到圆心的距离
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items[index].disPtoO = this.getDistancs(items[index].x, items[index].y, items[index]._tx, items[index]._ty - 10)
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console.log(items[index].disPtoO);
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if(items[index].disPtoO > 80 && items[index].disPtoO <200 ){//设置贴图最小值和最大值
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items[index].scale = items[index].disPtoO / items[index].r;
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}
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//移动后位置的角度
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items[index].angleNext = this.countDeg(items[index].x, items[index].y, items[index]._tx, items[index]._ty)
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//角度差
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items[index].new_rotate = items[index].angleNext - items[index].anglePre;
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//叠加的角度差
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items[index].rotate += items[index].new_rotate;
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items[index].angle = items[index].rotate; //赋值
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//用过移动后的坐标赋值为移动前坐标
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items[index].tx = e.touches[0].clientX;
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items[index].ty = e.touches[0].clientY;
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items[index].anglePre = this.countDeg(items[index].x, items[index].y, items[index].tx, items[index].ty)
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//赋值setData渲染
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this.setData({
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itemList: items
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})
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},
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// 计算坐标点到圆心的距离
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getDistancs(cx, cy, pointer_x, pointer_y) {
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this.setData({
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showBtn: true,
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funBox: false
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})
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var ox = pointer_x - cx;
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var oy = pointer_y - cy;
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return Math.sqrt(
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ox * ox + oy * oy
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);
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},
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/*
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*参数cx和cy为图片圆心坐标
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*参数pointer_x和pointer_y为手点击的坐标
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*返回值为手点击的坐标到圆心的角度
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*/
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countDeg: function(cx, cy, pointer_x, pointer_y) {
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var ox = pointer_x - cx;
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var oy = pointer_y - cy;
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var to = Math.abs(ox / oy);
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var angle = Math.atan(to) / (2 * Math.PI) * 360;
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if (ox < 0 && oy < 0) //相对在左上角，第四象限，js中坐标系是从左上角开始的，这里的象限是正常坐标系
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{
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angle = -angle;
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} else if (ox <= 0 && oy >= 0) //左下角,3象限
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{
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angle = -(180 - angle)
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} else if (ox > 0 && oy < 0) //右上角，1象限
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{
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angle = angle;
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} else if (ox > 0 && oy > 0) //右下角，2象限
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{
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angle = 180 - angle;
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}
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return angle;
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},
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// 删除
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deleteItem: function(e) {
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let newList = [];
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for (let i = 0; i < items.length; i++) {
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if (e.currentTarget.dataset.id != items[i].id) {
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newList.push(items[i])
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}
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}
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if (newList.length > 1) { //大于0背景图可被删除，大于1背景图不能被删除
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newList[newList.length - 1].active = true; // 剩下图片组最后一个选中
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}
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items = newList;
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this.setData({
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itemList: items
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})
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},
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// 打开遮罩层
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openMask() {
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if (wx.getStorageSync('username')!='' && wx.getStorageSync('username')!=undefined ) {
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this.synthesis();
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// this.setData({showCanvas: true,showTitle:true})
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this.setData({showCanvas: true})
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} else {
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this.setData({
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isLogin: true
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})
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}
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},
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downLoadImg(netUrl, storageKeyUrl) {
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wx.getImageInfo({
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src: netUrl, //请求的网络图片路径
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success: function(res) {
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//请求成功后将会生成一个本地路径即res.path,然后将该路径缓存到storageKeyUrl关键字中
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wx.setStorage({
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key: storageKeyUrl,
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data: res.path,
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});
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}
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})
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},
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synthesis(whereIndex=0) { // 合成图片
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maskCanvas.save();
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maskCanvas.beginPath();
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// 画背景色（白色）
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maskCanvas.setFillStyle('#fff');
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maskCanvas.fillRect(0, 0, this.data.canvasWidth, this.data.backGroundHeight);
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items.forEach((currentValue, index) => {
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maskCanvas.save();
|
||
maskCanvas.translate(0, 0);
|
||
maskCanvas.beginPath();
|
||
maskCanvas.translate(currentValue.x, currentValue.y); // 圆心坐标
|
||
maskCanvas.rotate(currentValue.angle * Math.PI / 180);
|
||
maskCanvas.translate(-(currentValue.width * currentValue.scale / 2), -(currentValue.height *
|
||
currentValue.scale / 2))
|
||
maskCanvas.drawImage(currentValue.image, 0, 0, currentValue.width * currentValue.scale,
|
||
currentValue.height * currentValue.scale);
|
||
maskCanvas.restore();
|
||
})
|
||
// reserve 参数为 false，则在本次调用绘制之前 native 层会先清空画布再继续绘制
|
||
maskCanvas.draw(false, (e) => {
|
||
wx.canvasToTempFilePath({
|
||
canvasId: 'maskCanvas',
|
||
success: res => {
|
||
this.setData({
|
||
canvasTemImg: res.tempFilePath
|
||
})
|
||
if(whereIndex==1){
|
||
wx.showToast({title:'正在调起分享',duration:5000})
|
||
console.log(this.data.canvasTemImg);
|
||
wx.uploadFile({
|
||
url: urlPath.composeBottle,
|
||
filePath: this.data.canvasTemImg,
|
||
name: 'image',
|
||
formData: {
|
||
'name': this.data.titleVal
|
||
},
|
||
header: {
|
||
"Content-Type": "multipart/form-data",
|
||
'Content-Type': 'application/json',
|
||
'token': wx.getStorageSync('token')
|
||
},
|
||
success: (res)=> {
|
||
let newRes = JSON.parse(res.data);
|
||
if(newRes.code==0){
|
||
wx.downloadFile({
|
||
url: urlPath.host + newRes.data.src,
|
||
success: (res) => {
|
||
wx.showShareImageMenu({
|
||
path: res.tempFilePath,
|
||
success:(res)=>{}
|
||
})
|
||
}
|
||
})
|
||
}
|
||
},
|
||
fail: function(data) {
|
||
console.log(data);
|
||
}
|
||
})
|
||
}
|
||
}
|
||
}, this);
|
||
})
|
||
},
|
||
// 关闭遮罩层
|
||
disappearCanvas() {
|
||
this.setData({
|
||
showCanvas: false
|
||
})
|
||
},
|
||
// 保存图片到系统相册
|
||
saveImg: function() {
|
||
wx.saveImageToPhotosAlbum({
|
||
filePath: this.data.canvasTemImg,
|
||
success: res => {
|
||
wx.showToast({
|
||
title: '保存成功',
|
||
icon: "success"
|
||
})
|
||
this.saveImgEv(this.data.canvasTemImg);
|
||
},
|
||
fail: res => {
|
||
wx.showModal({
|
||
title: '提示',
|
||
content: '保存失败，请确保相册权限已打开',
|
||
success: (e) => {
|
||
if (e.confirm) {
|
||
wx.openSetting({
|
||
success: settingdata => {
|
||
if (settingdata.authSetting['scope.writePhotosAlbum']) {
|
||
console.log('获取权限成功，给出再次点击图片保存到相册的提示。')
|
||
} else {
|
||
console.log('获取权限失败，给出不给权限就无法正常使用的提示')
|
||
}
|
||
},
|
||
fail: error => {
|
||
console.log(error)
|
||
}
|
||
})
|
||
}
|
||
}
|
||
})
|
||
}
|
||
})
|
||
},
|
||
// 保存图片接口
|
||
saveImgEv(imgSrc) {
|
||
wx.uploadFile({
|
||
url: urlPath.composeBottle,
|
||
filePath: imgSrc,
|
||
name: 'image',
|
||
formData: {
|
||
'name': this.data.titleVal
|
||
},
|
||
header: {
|
||
"Content-Type": "multipart/form-data",
|
||
'token': wx.getStorageSync('token')
|
||
},
|
||
success: (data)=> {
|
||
if(data.statusCode==200){
|
||
wx.showToast({
|
||
title:'保存成功',
|
||
icon:'none'
|
||
})
|
||
this.setData({
|
||
showCanvas:false
|
||
})
|
||
}
|
||
},
|
||
fail: function(data) {
|
||
console.log(data);
|
||
}
|
||
})
|
||
},
|
||
// 首页左下角分享
|
||
homeShare(){
|
||
this.synthesis(1);
|
||
},
|
||
// 分享图片
|
||
shareImg(e) {
|
||
let newIndex = e.currentTarget.dataset.index;
|
||
if(this.data.times==0){
|
||
this.setData({
|
||
times:this.data.times++
|
||
})
|
||
if(newIndex==0){
|
||
wx.showToast({title:'正在调起分享',duration:5000})
|
||
}
|
||
wx.uploadFile({
|
||
url: urlPath.composeBottle,
|
||
filePath: this.data.canvasTemImg,
|
||
name: 'image',
|
||
formData: {
|
||
'name': this.data.titleVal
|
||
},
|
||
header: {
|
||
"Content-Type": "multipart/form-data",
|
||
'Content-Type': 'application/json',
|
||
'token': wx.getStorageSync('token')
|
||
},
|
||
success: (res)=> {
|
||
let newRes = JSON.parse(res.data);
|
||
if(newRes.code==0){
|
||
if(newIndex==0){
|
||
console.log(newIndex);
|
||
wx.downloadFile({
|
||
url: urlPath.host + newRes.data.src,
|
||
success: (res) => {
|
||
wx.showShareImageMenu({
|
||
path: res.tempFilePath,
|
||
success:(res)=>{}
|
||
})
|
||
}
|
||
})
|
||
} else {
|
||
this.shareEv(newRes.data.id);
|
||
}
|
||
}
|
||
},
|
||
fail: function(data) {
|
||
console.log(data);
|
||
}
|
||
})
|
||
}
|
||
},
|
||
// 分享事件
|
||
shareEv(id) {
|
||
wx.request({
|
||
url: urlPath.publishMyBottle,
|
||
data: {id: id},
|
||
header: {'token': wx.getStorageSync('token')},
|
||
method: 'post',
|
||
success: (res) => {
|
||
if (res.data.code == 0) {
|
||
wx.showToast({title: '参加活动成功'});
|
||
this.setData({
|
||
showCanvas:false
|
||
})
|
||
}
|
||
}
|
||
});
|
||
},
|
||
// 关闭授权
|
||
chooseBtn(e) {
|
||
let loginIndex = e.currentTarget.dataset.index;
|
||
this.setData({
|
||
isOk: false,
|
||
isNo: false
|
||
})
|
||
loginIndex == 1 ? this.setData({
|
||
isOk: true
|
||
}) : this.setData({
|
||
isNo: true
|
||
})
|
||
},
|
||
// 确认授权
|
||
shouq(e) {
|
||
wx.getUserProfile({ //获取用户昵称
|
||
desc: '用于完善会员资料',
|
||
success: (res) => {
|
||
this.setData({
|
||
userInfo: res.userInfo,
|
||
isLogin: false
|
||
})
|
||
wx.showToast({
|
||
title: '授权成功',
|
||
icon: 'none'
|
||
})
|
||
this.setData({
|
||
isOk: false
|
||
})
|
||
wx.login({ //调用授权登录
|
||
success: res => {
|
||
wx.request({
|
||
url: urlPath.getopenid,
|
||
method: 'post',
|
||
data: {
|
||
code: res.code,
|
||
wx_name: this.data.userInfo.nickName,
|
||
avater: this.data.userInfo.avatarUrl,
|
||
},
|
||
success:(res)=> {
|
||
console.log(this.data.userInfo.nickName,);
|
||
console.log(res);
|
||
if (res.data.code == 0) {
|
||
wx.setStorageSync('token', res.data.data.token);
|
||
wx.setStorageSync('openid', res.data.data.openid);
|
||
wx.setStorageSync('username', res.data.data.user.wx_name);
|
||
console.log(wx.getStorageSync('username'));
|
||
}
|
||
}
|
||
});
|
||
}
|
||
})
|
||
},
|
||
fail: (res) => {
|
||
wx.showToast({
|
||
title: '授权失败',
|
||
icon: 'none'
|
||
})
|
||
this.setData({
|
||
isOk: false
|
||
})
|
||
}
|
||
})
|
||
},
|
||
// 获取标题
|
||
getBottleCategories() {
|
||
wx.request({
|
||
url: urlPath.getBottleCategories,
|
||
success: (res) => {
|
||
if (res.data.code == 0) {
|
||
if (res.data.data.length) {
|
||
this.setData({
|
||
titlelist: res.data.data
|
||
})
|
||
// this.getBottleWidgets(res.data.data[0].id);
|
||
}
|
||
}
|
||
}
|
||
});
|
||
},
|
||
// 获取标题下的图片
|
||
getBottleWidgets(id) {
|
||
this.setData({
|
||
isloading:true,
|
||
allList: []
|
||
})
|
||
wx.request({
|
||
url: urlPath.getBottleWidgets,
|
||
method: 'post',
|
||
data: {
|
||
category_id: id,
|
||
size: 60
|
||
},
|
||
success: (res) => {
|
||
if (res.data.code == 0) {
|
||
if (res.data.data.length) {
|
||
this.setData({
|
||
haveData: true
|
||
})
|
||
let newArr = [];
|
||
res.data.data.forEach(item => {
|
||
let url = urlPath.host + item.img;
|
||
this.downLoadImg(url, urlPath.host + item.img);
|
||
let obj = {
|
||
id: item.id,
|
||
name: item.name,
|
||
img: urlPath.host + item.img,
|
||
img_thumb:urlPath.host + item.img_thumb,
|
||
}
|
||
newArr.push(obj)
|
||
})
|
||
this.setData({
|
||
allList: newArr,
|
||
})
|
||
this.setData({
|
||
isloading:false
|
||
})
|
||
} else {
|
||
// wx.showToast({
|
||
// title:'无内容',
|
||
// icon:'none'
|
||
// })
|
||
this.setData({
|
||
haveData: false
|
||
})
|
||
}
|
||
|
||
}
|
||
}
|
||
});
|
||
},
|
||
// 查看我的作品
|
||
checkWorkEv() {
|
||
wx.navigateTo({
|
||
url: '/pages/works/works'
|
||
})
|
||
}
|
||
})
|