295 lines
7.9 KiB
Vue
295 lines
7.9 KiB
Vue
<template>
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<view class="sign">
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<head-view title="单证签名" :url="backUrl"></head-view>
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<view class="container contentFixed">
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<view class="sign-box">
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<canvas class="mycanvas" :style="{width:width +'px',height:height +'px'}" canvas-id="mycanvas"
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@touchstart="touchstart" @touchmove="touchmove" @touchend="touchend"></canvas>
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<canvas canvas-id="camCacnvs" :style="{width:height +'px',height:width +'px'}"
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class="canvsborder"></canvas>
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</view>
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<view class="sigh-btns">
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<view class="btn qx" @click="handleCancel">取消</view>
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<view class="btn qc" @click="handleReset">清除</view>
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<view class="btn bc" @click="handleConfirm">保存</view>
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</view>
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</view>
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</view>
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</template>
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<script>
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import {
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pathToBase64,
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base64ToPath
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} from '../../js_sdk/mmmm-image-tools/index.js'
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import {
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compressImgBySize
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} from '@/common/compressImg'
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import sqlite from "../../common/sqlite.js"
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import api from "../../common/api.js"
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import {
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v4 as uuidv4
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} from 'uuid';
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var x = 20;
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var y = 20;
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var tempPoint = []; //用来存放当前画纸上的轨迹点
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var id = 0;
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var type = '';
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let that;
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let canvasw;
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let canvash;
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export default {
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data() {
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return {
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ctx: '', //绘图图像
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points: [], //路径点集合,
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width: 0,
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height: 0,
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sginId: "",
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signImgUrl: "",
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nextUrl: "",
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signType: "",
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signTable: "",
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backUrl: "",
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tabsValue: 0,
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vvyId: "",
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};
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},
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onLoad(option) {
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this.sginId = JSON.parse(decodeURIComponent(option.params)).id
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this.nextUrl = JSON.parse(decodeURIComponent(option.params)).url
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this.signType = JSON.parse(decodeURIComponent(option.params)).signType
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this.signTable = JSON.parse(decodeURIComponent(option.params)).signTable
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this.tabsValue = JSON.parse(decodeURIComponent(option.params)).tabsValue
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this.vvyId = JSON.parse(decodeURIComponent(option.params)).vvyId
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this.backUrl = `/pages/shipWork/${this.nextUrl}`
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this.vtpId = uni.getStorageSync('vtpId')
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that = this;
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id = option.id;
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type = option.type;
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this.ctx = uni.createCanvasContext('mycanvas', this); //创建绘图对象
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//设置画笔样式
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this.ctx.lineWidth = 4;
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this.ctx.lineCap = 'round';
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this.ctx.lineJoin = 'round';
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uni.getSystemInfo({
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success: function(res) {
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that.width = res.windowWidth * 0.8;
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that.height = res.windowHeight * 0.85;
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}
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});
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},
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methods: {
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//触摸开始，获取到起点
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touchstart: function(e) {
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let startX = e.changedTouches[0].x;
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let startY = e.changedTouches[0].y;
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let startPoint = {
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X: startX,
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Y: startY
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};
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/* **************************************************
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#由于uni对canvas的实现有所不同，这里需要把起点存起来
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* **************************************************/
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this.points.push(startPoint);
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//每次触摸开始，开启新的路径
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this.ctx.beginPath();
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},
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//触摸移动，获取到路径点
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touchmove: function(e) {
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let moveX = e.changedTouches[0].x;
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let moveY = e.changedTouches[0].y;
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let movePoint = {
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X: moveX,
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Y: moveY
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};
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this.points.push(movePoint); //存点
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let len = this.points.length;
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if (len >= 2) {
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this.draw(); //绘制路径
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}
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tempPoint.push(movePoint);
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},
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// 触摸结束，将未绘制的点清空防止对后续路径产生干扰
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touchend: function() {
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this.points = [];
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},
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/* ***********************************************
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# 绘制笔迹
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# 1.为保证笔迹实时显示，必须在移动的同时绘制笔迹
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# 2.为保证笔迹连续，每次从路径集合中区两个点作为起点（moveTo）和终点(lineTo)
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# 3.将上一次的终点作为下一次绘制的起点（即清除第一个点）
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************************************************ */
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draw: function() {
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let point1 = this.points[0];
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let point2 = this.points[1];
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this.points.shift();
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this.ctx.moveTo(point1.X, point1.Y);
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this.ctx.lineTo(point2.X, point2.Y);
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this.ctx.stroke();
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this.ctx.draw(true);
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},
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handleCancel() {
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uni.navigateBack({
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delta: 1
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});
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},
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//清空画布
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handleReset: function() {
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that.ctx.clearRect(0, 0, that.width, that.height);
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that.ctx.draw(true);
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tempPoint = [];
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},
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//将签名笔迹上传到服务器，并将返回来的地址存到本地
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handleConfirm: function() {
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that = this
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if (tempPoint.length == 0) {
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uni.showToast({
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title: '请先签名',
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icon: 'none',
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duration: 2000
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});
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return;
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} else {
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let signId = that.sginId
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uni.canvasToTempFilePath({
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canvasId: 'mycanvas',
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success: function(res) {
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setTimeout(function() {
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pathToBase64(res.tempFilePath)
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.then(base64 => {
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compressImgBySize(base64, 1200).then(baseImg => {
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// 输出图片base64
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that.signImgUrl = baseImg
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let date = new Date().getTime()
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let webId = uuidv4()
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let webDate = api.getDate(date)
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// 供给签名，系解揽签名，指导员作业布置签名
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if(that.nextUrl == 'untieSign' || that.nextUrl == 'supplySign' || that.nextUrl == 'workAssignSign') {
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let sql2 = `DELETE FROM workSignTable WHERE bizId = '${signId}';`
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sqlite.executeSqlCeshi(sql2).then(() => {
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console.log('------');
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}).catch((error) => {
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// 在reject时执行的回调函数
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console.error(error);
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});
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}
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// 去除签名 -
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if(that.nextUrl == 'mixSign') {
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signId = signId.split('-')
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signId = signId[0] + signId[1] + signId[2]
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}
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let sql =
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`insert into workSignTable values('${webId}','${that.vtpId}','${signId}','${that.signImgUrl}','${that.signTable}','${that.signType}','${that.vvyId}','${webDate}')`
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sqlite.executeSqlCeshi(sql).then((
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value) => {
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// 在resolve时执行的回调函数
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let obj = {
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tabsValue: that
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.tabsValue,
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}
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const params =
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encodeURIComponent(JSON
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.stringify(obj));
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uni.navigateTo({
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url: `/pages/shipWork/${that.nextUrl}?params=${params}`
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})
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}).catch((error) => {
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// 在reject时执行的回调函数
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console.error(error);
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});
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})
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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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}, 1000)
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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 lang="scss" scoped>
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page {
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background-color: #fff;
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}
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.container {
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height: calc(100vh - 68px);
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padding-bottom: 30px;
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background-color: #fff;
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}
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.sign-box {
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width: 100%;
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height: 90%;
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margin-left: 10%;
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display: flex;
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flex-direction: column;
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text-align: center;
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}
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.sign-view {
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height: 100%;
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}
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.sigh-btns {
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display: flex;
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justify-content: center;
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width: 100%;
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height: 80px;
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background: #FFFFFF;
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box-shadow: 0 -3px 7px 0 rgba(0, 0, 0, 0.10);
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position: fixed;
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bottom: 0;
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}
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.btn {
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margin: 15.5px 17px;
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width: 200px;
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height: 49px;
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border-radius: 2px;
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font-size: 18px;
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text-align: center;
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line-height: 49px;
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}
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.qx {
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background-color: #eee;
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}
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.qc {
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color: #0067CF;
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background-color: rgba(0, 103, 207, 0.10);
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}
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.bc {
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color: #fff;
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background: #0067CF;
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}
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.mycanvas {
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margin: auto 0rpx;
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background-color: #fbfbfb;
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border: 1px dashed #eee;
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}
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.canvsborder {
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border: 1rpx solid #333;
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position: fixed;
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top: 0;
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left: 10000rpx;
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}
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</style> |