833 lines
22 KiB
JavaScript
833 lines
22 KiB
JavaScript
import {
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TOKENNAME,
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HTTP_REQUEST_URL
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} from '../config/app.js';
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import {HTTP_ADMIN_URL} from '@/config/app.js';
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import store from '../store';
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import {
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pathToBase64
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} from '@/plugin/image-tools/index.js';
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export default {
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/**
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* opt object | string
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* to_url object | string
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* 例:
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* this.Tips('/pages/test/test'); 跳转不提示
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* this.Tips({title:'提示'},'/pages/test/test'); 提示并跳转
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* this.Tips({title:'提示'},{tab:1,url:'/pages/index/index'}); 提示并跳转值table上
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* tab=1 一定时间后跳转至 table上
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* tab=2 一定时间后跳转至非 table上
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* tab=3 一定时间后返回上页面
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* tab=4 关闭所有页面跳转至非table上
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* tab=5 关闭当前页面跳转至table上
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*/
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Tips: function(opt, to_url) {
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if (typeof opt == 'string') {
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to_url = opt;
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opt = {};
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}
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let title = opt.title || '',
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icon = opt.icon || 'none',
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endtime = opt.endtime || 2000,
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success = opt.success;
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if (title) uni.showToast({
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title: title,
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icon: icon,
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duration: endtime,
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success
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})
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if (to_url != undefined) {
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if (typeof to_url == 'object') {
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let tab = to_url.tab || 1,
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url = to_url.url || '';
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switch (tab) {
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case 1:
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//一定时间后跳转至 table
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setTimeout(function() {
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uni.switchTab({
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url: url
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})
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}, endtime);
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break;
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case 2:
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//跳转至非table页面
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setTimeout(function() {
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uni.navigateTo({
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url: url,
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})
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}, endtime);
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break;
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case 3:
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//返回上页面
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setTimeout(function() {
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// #ifndef H5
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uni.navigateBack({
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delta: parseInt(url),
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})
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// #endif
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// #ifdef H5
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history.back();
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// #endif
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}, endtime);
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break;
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case 4:
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//关闭当前所有页面跳转至非table页面
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setTimeout(function() {
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uni.reLaunch({
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url: url,
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})
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}, endtime);
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break;
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case 5:
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//关闭当前页面跳转至非table页面
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setTimeout(function() {
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uni.redirectTo({
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url: url,
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})
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}, endtime);
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break;
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}
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} else if (typeof to_url == 'function') {
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setTimeout(function() {
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to_url && to_url();
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}, endtime);
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} else {
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//没有提示时跳转不延迟
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setTimeout(function() {
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uni.navigateTo({
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url: to_url,
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})
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}, title ? endtime : 0);
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}
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}
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},
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/**
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* 移除数组中的某个数组并组成新的数组返回
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* @param array array 需要移除的数组
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* @param int index 需要移除的数组的键值
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* @param string | int 值
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* @return array
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*
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*/
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ArrayRemove: function(array, index, value) {
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const valueArray = [];
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if (array instanceof Array) {
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for (let i = 0; i < array.length; i++) {
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if (typeof index == 'number' && array[index] != i) {
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valueArray.push(array[i]);
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} else if (typeof index == 'string' && array[i][index] != value) {
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valueArray.push(array[i]);
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}
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}
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}
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return valueArray;
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},
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/**
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* 生成海报获取文字
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* @param string text 为传入的文本
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* @param int num 为单行显示的字节长度
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* @return array
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*/
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textByteLength: function(text, num) {
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let strLength = 0;
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let rows = 1;
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let str = 0;
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let arr = [];
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for (let j = 0; j < text.length; j++) {
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if (text.charCodeAt(j) > 255) {
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strLength += 2;
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if (strLength > rows * num) {
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strLength++;
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arr.push(text.slice(str, j));
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str = j;
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rows++;
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}
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} else {
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strLength++;
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if (strLength > rows * num) {
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arr.push(text.slice(str, j));
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str = j;
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rows++;
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}
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}
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}
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arr.push(text.slice(str, text.length));
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return [strLength, arr, rows] // [处理文字的总字节长度，每行显示内容的数组，行数]
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},
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/**
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* 获取分享海报
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* @param array arr2 海报素材
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* @param string store_name 素材文字
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* @param string price 价格
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* @param string ot_price 原始价格
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* @param function successFn 回调函数
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*
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*
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*/
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PosterCanvas: function(arr2, store_name, price, ot_price, successFn) {
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let that = this;
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const ctx = uni.createCanvasContext('firstCanvas');
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ctx.clearRect(0, 0, 0, 0);
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/**
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* 只能获取合法域名下的图片信息,本地调试无法获取
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*
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*/
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ctx.fillStyle = '#fff';
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ctx.fillRect(0, 0, 750, 1150);
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uni.getImageInfo({
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src: arr2[0],
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success: function(res) {
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const WIDTH = res.width;
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const HEIGHT = res.height;
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// ctx.drawImage(arr2[0], 0, 0, WIDTH, 1050);
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ctx.drawImage(arr2[1], 0, 0, WIDTH, WIDTH);
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ctx.save();
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let r = 110;
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let d = r * 2;
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let cx = 480;
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let cy = 790;
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ctx.arc(cx + r, cy + r, r, 0, 2 * Math.PI);
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// ctx.clip();
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ctx.drawImage(arr2[2], cx, cy, d, d);
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ctx.restore();
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const CONTENT_ROW_LENGTH = 20;
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let [contentLeng, contentArray, contentRows] = that.textByteLength(store_name,
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CONTENT_ROW_LENGTH);
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if (contentRows > 2) {
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contentRows = 2;
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let textArray = contentArray.slice(0, 2);
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textArray[textArray.length - 1] += '……';
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contentArray = textArray;
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}
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ctx.setTextAlign('left');
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ctx.setFontSize(36);
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ctx.setFillStyle('#000');
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// let contentHh = 36 * 1.5;
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let contentHh = 36;
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for (let m = 0; m < contentArray.length; m++) {
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// ctx.fillText(contentArray[m], 50, 1000 + contentHh * m,750);
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if (m) {
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ctx.fillText(contentArray[m], 50, 1000 + contentHh * m + 18, 1100);
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} else {
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ctx.fillText(contentArray[m], 50, 1000 + contentHh * m, 1100);
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}
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}
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ctx.setTextAlign('left')
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ctx.setFontSize(72);
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ctx.setFillStyle('#DA4F2A');
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ctx.fillText('￥' + price, 40, 820 + contentHh);
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ctx.setTextAlign('left')
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ctx.setFontSize(36);
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ctx.setFillStyle('#999');
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ctx.fillText('￥' + ot_price, 50, 876 + contentHh);
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var underline = function(ctx, text, x, y, size, color, thickness, offset) {
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var width = ctx.measureText(text).width;
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switch (ctx.textAlign) {
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case "center":
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x -= (width / 2);
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break;
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case "right":
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x -= width;
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break;
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}
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y += size + offset;
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ctx.beginPath();
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ctx.strokeStyle = color;
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ctx.lineWidth = thickness;
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ctx.moveTo(x, y);
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ctx.lineTo(x + width, y);
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ctx.stroke();
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}
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underline(ctx, '￥' + ot_price, 55, 865, 36, '#999', 2, 0)
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ctx.setTextAlign('left')
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ctx.setFontSize(28);
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ctx.setFillStyle('#999');
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ctx.fillText('长按或扫描查看', 490, 1030 + contentHh);
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ctx.draw(true, function() {
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uni.canvasToTempFilePath({
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canvasId: 'firstCanvas',
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fileType: 'png',
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destWidth: WIDTH,
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destHeight: HEIGHT,
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success: function(res) {
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// uni.hideLoading();
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successFn && successFn(res.tempFilePath);
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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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console.log('失败', err)
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uni.hideLoading();
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that.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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/**
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* 绘制文字自动换行
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* @param array arr2 海报素材
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* @param Number x , y 绘制的坐标
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* @param Number maxWigth 绘制文字的宽度
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* @param Number lineHeight 行高
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* @param Number maxRowNum 最大行数
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*/
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canvasWraptitleText(canvas, text, x, y, maxWidth, lineHeight, maxRowNum) {
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if (typeof text != 'string' || typeof x != 'number' || typeof y != 'number') {
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return;
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}
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// canvas.font = '20px Bold PingFang SC'; //绘制文字的字号和大小
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// 字符分隔为数组
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var arrText = text.split('');
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var line = '';
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var rowNum = 1
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for (var n = 0; n < arrText.length; n++) {
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var testLine = line + arrText[n];
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var metrics = canvas.measureText(testLine);
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var testWidth = metrics.width;
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if (testWidth > maxWidth && n > 0) {
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if (rowNum >= maxRowNum) {
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var arrLine = testLine.split('')
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arrLine.splice(-9)
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var newTestLine = arrLine.join("")
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newTestLine += "..."
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canvas.fillText(newTestLine, x, y);
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//如果需要在省略号后面添加其他的东西，就在这个位置写（列如添加扫码查看详情字样）
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//canvas.fillStyle = '#2259CA';
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//canvas.fillText('扫码查看详情',x + maxWidth-90, y);
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return
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}
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canvas.fillText(line, x, y);
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line = arrText[n];
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y += lineHeight;
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rowNum += 1
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} else {
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line = testLine;
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}
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}
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canvas.fillText(line, x, y);
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},
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/**
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* 获取活动分享海报
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* @param array arr2 海报素材
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* @param string storeName 素材文字
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* @param string price 价格
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* @param string people 人数
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* @param string count 剩余人数
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* @param function successFn 回调函数
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*/
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activityCanvas: function(arrImages, storeName, price, people, count,num,successFn) {
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let that = this;
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let rain = 2;
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const context = uni.createCanvasContext('activityCanvas');
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context.clearRect(0, 0, 0, 0);
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/**
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* 只能获取合法域名下的图片信息,本地调试无法获取
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*
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*/
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context.fillStyle = '#fff';
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context.fillRect(0, 0, 594, 850);
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uni.getImageInfo({
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src: arrImages[0],
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success: function(res) {
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context.drawImage(arrImages[0], 0, 0, 594, 850);
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context.setFontSize(14*rain);
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context.setFillStyle('#333333');
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that.canvasWraptitleText(context, storeName, 110*rain, 110*rain, 230*rain, 30*rain, 1)
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context.drawImage(arrImages[2], 68*rain, 194*rain, 160*rain, 160*rain);
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context.save();
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context.setFontSize(14*rain);
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context.setFillStyle('#fc4141');
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context.fillText('￥', 157*rain, 145*rain);
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context.setFontSize(24*rain);
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context.setFillStyle('#fc4141');
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context.fillText(price, 170*rain, 145*rain);
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context.setFontSize(10*rain);
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context.setFillStyle('#fff');
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context.fillText(people, 118*rain, 143*rain);
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context.setFontSize(12*rain);
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context.setFillStyle('#666666');
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context.setTextAlign('center');
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context.fillText( count , (167-num)*rain, 166*rain);
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that.handleBorderRect(context, 27*rain, 94*rain, 75*rain, 75*rain, 6*rain);
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context.clip();
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context.drawImage(arrImages[1], 27*rain, 94*rain, 75*rain, 75*rain);
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context.draw(true, function() {
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uni.canvasToTempFilePath({
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canvasId: 'activityCanvas',
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fileType: 'png',
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destWidth: 594,
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destHeight: 850,
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success: function(res) {
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// uni.hideLoading();
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successFn && successFn(res.tempFilePath);
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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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console.log('失败', err)
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uni.hideLoading();
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that.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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/**
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* 图片圆角设置
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* @param string x x轴位置
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* @param string y y轴位置
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* @param string w 图片宽
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* @param string y 图片高
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* @param string r 圆角值
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*/
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handleBorderRect(ctx, x, y, w, h, r) {
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ctx.beginPath();
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// 左上角
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ctx.arc(x + r, y + r, r, Math.PI, 1.5 * Math.PI);
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ctx.moveTo(x + r, y);
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ctx.lineTo(x + w - r, y);
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ctx.lineTo(x + w, y + r);
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// 右上角
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ctx.arc(x + w - r, y + r, r, 1.5 * Math.PI, 2 * Math.PI);
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ctx.lineTo(x + w, y + h - r);
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ctx.lineTo(x + w - r, y + h);
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// 右下角
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ctx.arc(x + w - r, y + h - r, r, 0, 0.5 * Math.PI);
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ctx.lineTo(x + r, y + h);
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ctx.lineTo(x, y + h - r);
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// 左下角
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ctx.arc(x + r, y + h - r, r, 0.5 * Math.PI, Math.PI);
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ctx.lineTo(x, y + r);
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ctx.lineTo(x + r, y);
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ctx.fill();
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ctx.closePath();
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},
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/*
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* 单图上传
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* @param object opt
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* @param callable successCallback 成功执行方法 data
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* @param callable errorCallback 失败执行方法
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*/
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uploadImageOne: function(opt, successCallback, errorCallback) {
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let that = this;
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if (typeof opt === 'string') {
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let url = opt;
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opt = {};
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opt.url = url;
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}
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let count = opt.count || 1,
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sizeType = opt.sizeType || ['compressed'],
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sourceType = opt.sourceType || ['album', 'camera'],
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is_load = opt.is_load || true,
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uploadUrl = opt.url || '',
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inputName = opt.name || 'pics',
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pid = opt.pid,
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model = opt.model;
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uni.chooseImage({
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count: count, //最多可以选择的图片总数
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sizeType: sizeType, // 可以指定是原图还是压缩图，默认二者都有
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sourceType: sourceType, // 可以指定来源是相册还是相机，默认二者都有
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success: function(res) {
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//启动上传等待中...
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uni.showLoading({
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title: '图片上传中',
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});
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let urlPath = HTTP_ADMIN_URL + '/api/admin/upload/image' + "?model=" + model + "&pid=" + pid
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let localPath = res.tempFilePaths[0];
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uni.uploadFile({
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url: urlPath,
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filePath: localPath,
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name: inputName,
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header: {
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// #ifdef MP
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"Content-Type": "multipart/form-data",
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// #endif
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[TOKENNAME]: store.state.app.token
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},
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success: function(res) {
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uni.hideLoading();
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if (res.statusCode == 403) {
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that.Tips({
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title: res.data
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});
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} else {
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let data = res.data ? JSON.parse(res.data) : {};
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if (data.code == 200) {
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data.data.localPath = localPath;
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successCallback && successCallback(data)
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} else {
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errorCallback && errorCallback(data);
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that.Tips({
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title: data.message
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});
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}
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}
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},
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fail: function(res) {
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uni.hideLoading();
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that.Tips({
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title: '上传图片失败'
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});
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}
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})
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// pathToBase64(res.tempFilePaths[0])
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// .then(imgBase64 => {
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// console.log(imgBase64);
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// })
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// .catch(error => {
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// console.error(error)
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// })
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}
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})
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},
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/**
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* 处理服务器扫码带进来的参数
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* @param string param 扫码携带参数
|
||
* @param string k 整体分割符 默认为：&
|
||
* @param string p 单个分隔符 默认为：=
|
||
* @return object
|
||
*
|
||
*/
|
||
// #ifdef MP
|
||
getUrlParams: function(param, k, p) {
|
||
if (typeof param != 'string') return {};
|
||
k = k ? k : '&'; //整体参数分隔符
|
||
p = p ? p : '='; //单个参数分隔符
|
||
var value = {};
|
||
if (param.indexOf(k) !== -1) {
|
||
param = param.split(k);
|
||
for (var val in param) {
|
||
if (param[val].indexOf(p) !== -1) {
|
||
var item = param[val].split(p);
|
||
value[item[0]] = item[1];
|
||
}
|
||
}
|
||
} else if (param.indexOf(p) !== -1) {
|
||
var item = param.split(p);
|
||
value[item[0]] = item[1];
|
||
} else {
|
||
return param;
|
||
}
|
||
return value;
|
||
},
|
||
/**根据格式组装公共参数
|
||
* @param {Object} value
|
||
*/
|
||
formatMpQrCodeData(value){
|
||
let values = value.split(',');
|
||
let result = {};
|
||
if(values.length === 2){
|
||
let v1 = values[0].split(":");
|
||
if (v1[0] === 'pid') {
|
||
result.spread = v1[1];
|
||
} else{
|
||
result.id = v1[1];
|
||
}
|
||
let v2 = values[1].split(":");
|
||
if (v2[0] === 'pid') {
|
||
result.spread = v2[1];
|
||
}else{
|
||
result.id = v2[1];
|
||
}
|
||
}else{
|
||
result = values[0].split(":")[1];
|
||
}
|
||
return result;
|
||
},
|
||
// #endif
|
||
/*
|
||
* 合并数组
|
||
*/
|
||
SplitArray(list, sp) {
|
||
if (typeof list != 'object') return [];
|
||
if (sp === undefined) sp = [];
|
||
for (var i = 0; i < list.length; i++) {
|
||
sp.push(list[i]);
|
||
}
|
||
return sp;
|
||
},
|
||
trim(str) {
|
||
return String.prototype.trim.call(str);
|
||
},
|
||
$h: {
|
||
//除法函数，用来得到精确的除法结果
|
||
//说明：javascript的除法结果会有误差，在两个浮点数相除的时候会比较明显。这个函数返回较为精确的除法结果。
|
||
//调用：$h.Div(arg1,arg2)
|
||
//返回值：arg1除以arg2的精确结果
|
||
Div: function(arg1, arg2) {
|
||
arg1 = parseFloat(arg1);
|
||
arg2 = parseFloat(arg2);
|
||
var t1 = 0,
|
||
t2 = 0,
|
||
r1, r2;
|
||
try {
|
||
t1 = arg1.toString().split(".")[1].length;
|
||
} catch (e) {}
|
||
try {
|
||
t2 = arg2.toString().split(".")[1].length;
|
||
} catch (e) {}
|
||
r1 = Number(arg1.toString().replace(".", ""));
|
||
r2 = Number(arg2.toString().replace(".", ""));
|
||
return this.Mul(r1 / r2, Math.pow(10, t2 - t1));
|
||
},
|
||
//加法函数，用来得到精确的加法结果
|
||
//说明：javascript的加法结果会有误差，在两个浮点数相加的时候会比较明显。这个函数返回较为精确的加法结果。
|
||
//调用：$h.Add(arg1,arg2)
|
||
//返回值：arg1加上arg2的精确结果
|
||
Add: function(arg1, arg2) {
|
||
arg2 = parseFloat(arg2);
|
||
var r1, r2, m;
|
||
try {
|
||
r1 = arg1.toString().split(".")[1].length
|
||
} catch (e) {
|
||
r1 = 0
|
||
}
|
||
try {
|
||
r2 = arg2.toString().split(".")[1].length
|
||
} catch (e) {
|
||
r2 = 0
|
||
}
|
||
m = Math.pow(100, Math.max(r1, r2));
|
||
return (this.Mul(arg1, m) + this.Mul(arg2, m)) / m;
|
||
},
|
||
//减法函数，用来得到精确的减法结果
|
||
//说明：javascript的加法结果会有误差，在两个浮点数相加的时候会比较明显。这个函数返回较为精确的减法结果。
|
||
//调用：$h.Sub(arg1,arg2)
|
||
//返回值：arg1减去arg2的精确结果
|
||
Sub: function(arg1, arg2) {
|
||
arg1 = parseFloat(arg1);
|
||
arg2 = parseFloat(arg2);
|
||
var r1, r2, m, n;
|
||
try {
|
||
r1 = arg1.toString().split(".")[1].length
|
||
} catch (e) {
|
||
r1 = 0
|
||
}
|
||
try {
|
||
r2 = arg2.toString().split(".")[1].length
|
||
} catch (e) {
|
||
r2 = 0
|
||
}
|
||
m = Math.pow(10, Math.max(r1, r2));
|
||
//动态控制精度长度
|
||
n = (r1 >= r2) ? r1 : r2;
|
||
return ((this.Mul(arg1, m) - this.Mul(arg2, m)) / m).toFixed(n);
|
||
},
|
||
//乘法函数，用来得到精确的乘法结果
|
||
//说明：javascript的乘法结果会有误差，在两个浮点数相乘的时候会比较明显。这个函数返回较为精确的乘法结果。
|
||
//调用：$h.Mul(arg1,arg2)
|
||
//返回值：arg1乘以arg2的精确结果
|
||
Mul: function(arg1, arg2) {
|
||
arg1 = parseFloat(arg1);
|
||
arg2 = parseFloat(arg2);
|
||
var m = 0,
|
||
s1 = arg1.toString(),
|
||
s2 = arg2.toString();
|
||
try {
|
||
m += s1.split(".")[1].length
|
||
} catch (e) {}
|
||
try {
|
||
m += s2.split(".")[1].length
|
||
} catch (e) {}
|
||
return Number(s1.replace(".", "")) * Number(s2.replace(".", "")) / Math.pow(10, m);
|
||
},
|
||
},
|
||
// 获取地理位置;
|
||
$L: {
|
||
async getLocation() {
|
||
// #ifdef MP-WEIXIN || MP-TOUTIAO || MP-QQ
|
||
let status = await this.getSetting();
|
||
if (status === 2) {
|
||
this.openSetting();
|
||
return;
|
||
}
|
||
// #endif
|
||
|
||
this.doGetLocation();
|
||
},
|
||
doGetLocation() {
|
||
uni.getLocation({
|
||
success: (res) => {
|
||
uni.removeStorageSync('CACHE_LONGITUDE');
|
||
uni.removeStorageSync('CACHE_LATITUDE');
|
||
uni.setStorageSync('CACHE_LONGITUDE', res.longitude);
|
||
uni.setStorageSync('CACHE_LATITUDE', res.latitude);
|
||
},
|
||
fail: (err) => {
|
||
// #ifdef MP-BAIDU
|
||
if (err.errCode === 202 || err.errCode === 10003) { // 202模拟器 10003真机 user deny
|
||
this.openSetting();
|
||
}
|
||
// #endif
|
||
// #ifndef MP-BAIDU
|
||
if (err.errMsg.indexOf("auth deny") >= 0) {
|
||
uni.showToast({
|
||
title: "访问位置被拒绝"
|
||
})
|
||
} else {
|
||
uni.showToast({
|
||
title: err.errMsg
|
||
})
|
||
}
|
||
// #endif
|
||
}
|
||
})
|
||
},
|
||
getSetting: function() {
|
||
return new Promise((resolve, reject) => {
|
||
uni.getSetting({
|
||
success: (res) => {
|
||
if (res.authSetting['scope.userLocation'] === undefined) {
|
||
resolve(0);
|
||
return;
|
||
}
|
||
if (res.authSetting['scope.userLocation']) {
|
||
resolve(1);
|
||
} else {
|
||
resolve(2);
|
||
}
|
||
}
|
||
});
|
||
});
|
||
},
|
||
openSetting: function() {
|
||
uni.openSetting({
|
||
success: (res) => {
|
||
if (res.authSetting && res.authSetting['scope.userLocation']) {
|
||
this.doGetLocation();
|
||
}
|
||
},
|
||
fail: (err) => {}
|
||
})
|
||
},
|
||
async checkPermission() {
|
||
let status = permision.isIOS ? await permision.requestIOS('location') :
|
||
await permision.requestAndroid('android.permission.ACCESS_FINE_LOCATION');
|
||
|
||
if (status === null || status === 1) {
|
||
status = 1;
|
||
} else if (status === 2) {
|
||
uni.showModal({
|
||
content: "系统定位已关闭",
|
||
confirmText: "确定",
|
||
showCancel: false,
|
||
success: function(res) {}
|
||
})
|
||
} else if (status.code) {
|
||
uni.showModal({
|
||
content: status.message
|
||
})
|
||
} else {
|
||
uni.showModal({
|
||
content: "需要定位权限",
|
||
confirmText: "设置",
|
||
success: function(res) {
|
||
if (res.confirm) {
|
||
permision.gotoAppSetting();
|
||
}
|
||
}
|
||
})
|
||
}
|
||
return status;
|
||
},
|
||
},
|
||
|
||
toStringValue: function(obj) {
|
||
if (obj instanceof Array) {
|
||
var arr = [];
|
||
for (var i = 0; i < obj.length; i++) {
|
||
arr[i] = toStringValue(obj[i]);
|
||
}
|
||
return arr;
|
||
} else if (typeof obj == 'object') {
|
||
for (var p in obj) {
|
||
obj[p] = toStringValue(obj[p]);
|
||
}
|
||
} else if (typeof obj == 'number') {
|
||
obj = obj + '';
|
||
}
|
||
return obj;
|
||
},
|
||
|
||
/*
|
||
* 替换域名
|
||
*/
|
||
setDomain: function(url) {
|
||
url = url ? url.toString() : '';
|
||
if (url.indexOf("https://") > -1) return url;
|
||
else return url.replace('http://', 'https://');
|
||
},
|
||
|
||
/**
|
||
* 姓名除了姓显示其他
|
||
*/
|
||
formatName: function(str) {
|
||
return str.substr(0, 1) + new Array(str.length).join('*');
|
||
},
|
||
|
||
}
|
||
|
||
/**
|
||
* 将分转成元
|
||
*
|
||
* @param price 分，例如说 100 分
|
||
* @returns {string} 元，例如说 1.00 元
|
||
*/
|
||
export function fen2yuan(price) {
|
||
return (price / 100.0).toFixed(2)
|
||
}
|
||
|
||
/**
|
||
* 构造树型结构数据
|
||
*
|
||
* @param {*} data 数据源
|
||
* @param {*} id id字段 默认 'id'
|
||
* @param {*} parentId 父节点字段 默认 'parentId'
|
||
* @param {*} children 孩子节点字段 默认 'children'
|
||
* @param {*} rootId 根Id 默认 0
|
||
*/
|
||
export function handleTree(data, id, parentId, children, rootId) {
|
||
id = id || 'id'
|
||
parentId = parentId || 'parentId'
|
||
children = children || 'children'
|
||
rootId = rootId || Math.min.apply(Math, data.map(item => {
|
||
return item[parentId]
|
||
})) || 0
|
||
//对源数据深度克隆
|
||
const cloneData = JSON.parse(JSON.stringify(data))
|
||
//循环所有项
|
||
const treeData = cloneData.filter(father => {
|
||
let branchArr = cloneData.filter(child => {
|
||
//返回每一项的子级数组
|
||
return father[id] === child[parentId]
|
||
});
|
||
branchArr.length > 0 ? father.children = branchArr : '';
|
||
//返回第一层
|
||
return father[parentId] === rootId;
|
||
});
|
||
return treeData !== '' ? treeData : data;
|
||
}
|