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time-line-canvas
提交 dbf17bbe 编写于 作者: J jqrrgmvtk
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.inscode
浏览文件 @ dbf17bbe
run = "npm i && npm run dev"
language = "node"
[deployment]
build = "npm i && npm run build"
......@@ -8,3 +9,6 @@ run = "npm run preview"
PATH = "/root/${PROJECT_DIR}/.config/npm/node_global/bin:/root/${PROJECT_DIR}/node_modules/.bin:${PATH}"
XDG_CONFIG_HOME = "/root/.config"
npm_config_prefix = "/root/${PROJECT_DIR}/.config/npm/node_global"
[debugger]
program = "main.js"
package.json
浏览文件 @ dbf17bbe
......@@ -8,6 +8,7 @@
},
"dependencies": {
"guess": "^1.0.2",
"moment": "^2.29.4",
"vue": "^3.2.37"
},
"devDependencies": {
......
src/App.vue
浏览文件 @ dbf17bbe
<script setup>
import HelloWorld from './components/HelloWorld.vue'
import TheWelcome from './components/TheWelcome.vue'
</script>
<!--
* @Description:
* @Version: 1.0
* @Autor: yyq
* @Date: 2023-02-13 18:56:19
* @LastEditors: yyq
* @LastEditTime: 2023-02-14 22:54:08
-->
<template>
<header>
<img alt="Vue logo" class="logo" src="./assets/logo.svg" width="125" height="125" />
<div id="app">
<div><div style="text-align: left;margin: 45px 0 8px; 0">无参示例：</div></div>
<div class="wrapper">
<HelloWorld msg="You did it!" />
<TimeLineCanvas></TimeLineCanvas>
<div style="text-align: left;margin: 45px 0 8px; 0">指定参数示例：</div>
<TimeLineCanvas
ref="time_line"
@click="clickCanvas"
@change="changeDate"
:mark-time="markTime"
:time-range="timeRange"
:isAutoPlay="isAutoPlay"
:startMeddleTime="startMeddleTime"
/>
<div style="text-align: left;">
<input type="button" @click="setTimeRange" value="设置时间区域" />
<input type="button" @click="setStartMeddleTime" value="设置起点时间" />
<input type="button" @click="setMarkTime" value="设置区域标签" />
<input type="button" @click="setIsAutoPlay" value="开启自动播放" />
<input type="button" @click="stop" value="暂停播放" />
<input type="button" @click="play" value="开启播放" />
</div>
</header>
<main>
<TheWelcome />
</main>
<div style="color: #03A9F4; margin-top: 5px;">{{ msg }}</div>
</div>
</template>
<style scoped>
header {
line-height: 1.5;
}
.logo {
display: block;
margin: 0 auto 2rem;
}
@media (min-width: 1024px) {
header {
display: flex;
place-items: center;
padding-right: calc(var(--section-gap) / 2);
}
.logo {
margin: 0 2rem 0 0;
}
<script>
import TimeLineCanvas from "./components/timeline-canvas.vue";
import moment from "moment";
export default {
name: "App",
components: {
TimeLineCanvas,
},
data() {
return {
msg: "",
isAutoPlay: false,
boxwidth: 0,
width: 500,
startMeddleTime: "",
timeRange: [],
markTime: [],
};
},
methods: {
//设置起点时间
setStartMeddleTime() {
this.startMeddleTime = "2023-02-10 09:01:00";
},
//设置时间区域
setTimeRange() {
this.timeRange = "2023-02-10";
//或
//this.timeRange=["2023-02-10 00:00:00","2023-02-10 23:59:59"];
//起点时间根据timeRange计算（timeRange的中间值）
this.startMeddleTime = null;
},
//设置区域标签
setMarkTime() {
this.markTime = [
{
beginTime: "2023-02-10 06:01:00",
endTime: "2023-02-10 12:02:00",
bgColor: "#FFCC99",
text: "活动",
},
{
beginTime: "2023-02-10 15:01:00",
endTime: "2023-02-10 16:02:00",
bgColor: "#FF6666",
text: "故障",
},
];
},
//开启自动播放
setIsAutoPlay() {
this.isAutoPlay = true;
},
//开启播放
play() {
this.$refs.time_line.play("2023-02-10 13:01:00");
},
//暂停播放
stop() {
this.$refs.time_line.stop();
},
clickCanvas(date) {
console.log(date);
},
changeDate(date, status) {
console.log("changeDate:" + date);
this.msg = "选择时间：" + date + " 播放 状 态：" + status;
},
},
beforeMount() {
let date = "2023-02-06"; //moment(new Date()).format("YYYY-MM-DD");
this.timeRange = date; // [date + " 00:00:00", date + " 23:59:59"];//"2023-2-10"//;
this.startMeddleTime = date + " 00:00:00";
this.markTime = [
{
beginTime: date + " 01:01:00",
endTime: date + " 02:02:00",
bgColor: "#CC3333",
text: "困人",
},
{
beginTime: date + " 08:01:00",
endTime: date + " 10:02:00",
bgColor: "#FF9966",
text: "非法闯入",
},
{
beginTime: date + " 15:01:00",
endTime: date + " 16:02:00",
bgColor: "#FF9900",
text: "故障",
},
];
},
mounted() {},
};
</script>
header .wrapper {
display: flex;
place-items: flex-start;
flex-wrap: wrap;
}
<style>
#app {
font-family: Avenir, Helvetica, Arial, sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
text-align: center;
color: #2c3e50;
margin-top: 60px;
}
</style>
src/components/timeline-canvas.vue 0 → 100644
浏览文件 @ dbf17bbe
<template>
<canvas
@touchmove="touchmove"
@touchend="touchend"
@touchstart="touchstart"
onselectstart="return false;"
:style="`background-color: ${this.colors.background}; cursor: ${isMobile ? 'default' : 'pointer'}`"
:height="height"
ref="canvas"
></canvas>
</template>
<script>
import moment from "moment";
/**
* timeline-canvas canvas的绘制的时间轴组件
* @description 可用于视频、录像播放或实时数据展示等业务
* @tutorial https://gitee.com/my87/timeline-canvas
* @property {Number String} width 时间轴宽度，支持固定(不需要带单位)和百分比，默认自适应父容 （默认100%）
* @property {String Number} height 时间轴高度，非必要可以忽 （默认60）
* @property {String} startMeddleTime启动时间，未传参时会根据 timeRange 计算；timeRange 参数也未传采用当前时间
* @property {Array String } timeRange 时间轴绘制的时间范 （默认当天）
* @property {Array} markTime 区域进行标记，可以自定义背景颜色和文
* @property {Boolean} isAutoPlay 开启后时间轴将以 1s 的速度前进进（默认false）
* @property {Object} colors 自定义颜色
* @Methods {Function} play(date) 当未开启自动播放，时可以手动播放 date：播放的起始时间
* @Methods {Function} stop 手动暂停播放
* @event {Function} click 当时间和播放状态发生变化时触发，只有当开启 isAutoPlay=true 才有状态变化
* @event {Function} change 图片上传成功时触发
* @example <TimeLineCanvas ref="time_line" @click="clickCanvas" @change="changeDate" :mark-time="markTime" :time-range="time_range" :isAutoPlay="isAutoPlay" :startMeddleTime="startMeddleTime"/>
*/
export default {
props: {
width: {
type: [Number, String],
default: "100%",
},
//
height: {
type:[Number, String],
default: 60,
},
// 中间的时间,
startMeddleTime: String,
// 时间范围
timeRange: {
type: [Array, String],
default() {
return "";
},
},
// 需要标记的时间
markTime: {
type: Array,
default() {
return [];
},
},
//是否自动播放
isAutoPlay: {
type: Boolean,
default: false,
},
colors: {
type: Object,
default() {
return {
//背景
background: "#2b2f33",
//中间线
meddleLine: "#33CC33",
//中间时间
meddleDate: "#33CC33", // "rgb(64, 196, 255)",
//移动线
moveLine: "#808080",
//移动时间
moveDate: "#009966",
//刻度线
scaleLine: "#808080",
//刻度条
scaleBar: "#45484c",
};
},
},
//最小像素秒(每1px对应的秒数，保证时间轴的宽度缩小情况下时间刻度不会压缩在一起)
minPxSecond: {
type: Number,
default: 65,
},
},
data() {
return {
//像素比
dpr: 1,
// realTimeRange: [],
// 整个canvas显示多少个小时
whole_hour: 24,
// canvas的画布宽度
canvasWidth: 1000,
//中间时间
meddleTime: "",
// 移动时鼠标有没有按下
mouseDown: false,
// 鼠标按下时的位置
mouseDownPosition: "",
// 鼠标按下时中间的时间,
mouseDownMeddleTime: "",
// 鼠标按下时有没有移动
isMove: false,
//是否手机端
isMobile: false,
//两端之间距离
distance: 0,
//是否在播放中
isPlay: false,
};
},
mounted() {
this.canvas = this.$refs.canvas;
//是否为手机端
this.isMobile = /Mobi/i.test(navigator.userAgent); //navigator.userAgent.match(/Mobi/i);
//移动端如不禁止，在滑动时会触发鼠标事件与滑动事件冲突
if (!this.isMobile) {
this.canvas.addEventListener("mousewheel", this.mousewheel);
this.canvas.addEventListener("mousemove", this.mousemove);
this.canvas.addEventListener("mousedown", this.mousedown);
this.canvas.addEventListener("mouseup", this.mouseup);
this.canvas.addEventListener("mouseleave", this.mouseleave);
}
// 屏幕大小监听
window.addEventListener("onorientationchange" in window ? "orientationchange" : "resize", this.resize, false);
// 计算默认中间时间
this.setStartMeddleTime();
this.ctx = this.canvas.getContext("2d");
//初始化
this.init();
// 自动播放
if (this.isAutoPlay) {
this.play();
}
},
methods: {
init() {
this.canvas = this.$refs.canvas;
let width = this.width;
//自适应父容器宽度 this.width参数支持百分比设置
let parentWidth = this.canvas.parentElement.clientWidth;
if (/^(\d|[1-9]\d|100)%$/.test(this.width)) {
width = Math.floor((this.width.replace("%", "") / 100) * parentWidth);
}
//移动端像素模糊问题处理
//是由于dpr像素比造成的，扩大canvas画布的像素，使1个canvas像素和1个物理像素相等
this.dpr = window.devicePixelRatio; // 假设dpr为2
// //获取css的宽高
// const { width: cssWidth, height: cssHeight } = this.canvas.getBoundingClientRect();
// // 设置图像大小
this.canvas.style.width = `${width}px`;
this.canvas.style.height = `${this.height}px`;
// 设置画布大小
this.canvas.width = Math.round(width * this.dpr);
this.canvas.height = Math.round(this.height * this.dpr);
// 由于画布扩大，canvas的坐标系也跟着扩大，
// 按照原先的坐标系绘图内容会缩小, 所以需要将绘制比例放大
this.ctx.scale(this.dpr, this.dpr);
this.canvasWidth = this.canvas.width / this.dpr;
this.drow();
},
// 监听窗口大小
resize() {
if (window.orientation === 180 || window.orientation === 0) {
// "竖屏";
}
if (window.orientation === 90 || window.orientation === -90) {
//"横屏";
}
//有时屏幕尺寸变化了，而容器的尺寸还未改变的情况下的处理
if (this.canvas.style.width === this.canvas.parentElement.clientWidth + "px") {
setTimeout(() => {
this.resize();
}, 10);
} else {
//重新初始化
this.init();
}
},
//进度条停止播放
stop() {
if (this.isPlay) {
this.isPlay = false;
this.$emit("change", this.meddleTime, "stop");
}
if (this.interval_play) clearInterval(this.interval_play);
},
/**
* 进度条播放(每次走一秒)
* @param {String|Date} date 启动时间,不传启动时间为this.meddleTime
*/
play(date) {
this.isPlay = true;
clearInterval(this.interval_play);
if (date) {
this.meddleTime = date;
}
this.interval_play = setInterval(() => {
//中间时间增加1s
this.meddleTime = moment(this.meddleTime).add(1, "s").format("YYYY-MM-DD HH:mm:ss");
let status =
this.realTimeRange[1] && new Date(this.meddleTime).getTime() >= new Date(this.realTimeRange[1]).getTime()
? "end"
: "play";
this.$emit("change", this.meddleTime, status);
// 开发过程中热更新时，会在每更新一次就开启一个setInterval，前面又不释放
// 没有释放定时任务会报错，所有在异常就视为前个任务并清理掉
try {
this.drow();
} catch (ee) {
console.log(ee);
clearInterval(this.interval_play);
}
if (!this.isPlay || status == "end") {
clearInterval(this.interval_play);
}
}, 1000);
},
//移动端滑动
touchmove(e) {
let touches = e.touches;
e.offsetX = touches[0].pageX;
e.offsetY = touches[0].pageY;
//双指缩放 (在本组件上因区域的限制不适合用双指缩放手势)
if (touches.length >= 2) {
e.preventDefault();
let now = Date.now();
if (!this._moveTime) {
this._moveTime = now;
}
//抖动处理
else if (now - this._moveTime > 100) {
let _hypot = this.getDistance({ x: e.offsetX, y: e.offsetY }, { x: touches[1].pageX, y: touches[1].pageY });
if (_hypot > this.distance) {
//放大
e.wheelDelta = 1;
} else {
//缩小
e.wheelDelta = -1;
}
this.distance = _hypot;
this._moveTime = null;
this.mousewheel(e);
}
} else {
this.mousemove(e);
}
},
//滑动结束
touchend(e) {
let touches = e.changedTouches;
e.offsetX = touches[0].pageX;
e.offsetY = touches[0].pageY; //pc 与m的值是否相同
this.mouseup(e);
},
//滑动开始
touchstart(e) {
let touches = e.touches;
e.offsetX = touches[0].pageX;
e.offsetY = touches[0].pageY;
//双指事件(在本组件上因区域的限制不适合用双指缩放手势)
if (touches.length >= 2) {
e.preventDefault();
this.distance = this.getDistance({ x: e.offsetX, y: e.offsetY }, { x: touches[1].pageX, y: touches[1].pageX });
}
this.mousedown(e);
},
//鼠标离开
mouseleave(e) {
this.drow();
//鼠标离开无法在触发mouseup，所以当拖动时将离开视释放
if (this.mouseDown) {
this.mouseup(e);
} else {
this.mouseDown = false;
}
},
// 鼠标移动
mousemove(e) {
this.drow();
//PC滑动显示时间
if (!this.isMobile) {
this.drowMoveLine(e);
}
if (this.mouseDown) {
this.mouseDownMove(e);
this.isMove = true;
}
}, //126 10：00
// 滚动鼠标滚轮
mousewheel(e) {
e.preventDefault();
if (e.wheelDelta > 0) {
// 时间变短
this.whole_hour -= 4;
this.whole_hour < 1 && (this.whole_hour = 1);
} else {
// 时间变长
if (this.whole_hour < 4) {
this.whole_hour = 4;
} else {
this.whole_hour += 4;
this.whole_hour > 24 && (this.whole_hour = 24);
}
}
this.drow();
},
// 按下鼠标
mousedown(e) {
this.mouseDown = true;
this.mouseDownPosition = e.offsetX;
this.mouseDownMeddleTime = this.meddleTime;
this.isMove = false;
},
// 抬起鼠标
mouseup(e) {
this.mouseDown = false;
// 没有滑动或鼠标移动(视为点击操作)，就渲染中间时间（另外的是在移动事件里渲染）。
if (!this.isMove) {
let date = e.offsetX * this.px_second * 1000 + this.firstTime;
date = this.boundary_time(date);
let _date = moment(date).format("YYYY-MM-DD HH:mm:ss");
this.meddleTime = _date;
this.drow();
//PC滑动显示时间
if (!this.isMobile) {
this.drowMoveLine(e);
}
}
// 释放时确定时间选择
// change事件会在自动播放返回播放中的实时时间
this.$emit("change", this.meddleTime, "start");
//click事件只有在释放时才返回时间
this.$emit("click", this.meddleTime);
// 自动播放
if (this.isAutoPlay) {
this.play();
}
},
// 鼠标按下移动(组合事件)
mouseDownMove(e) {
this.stop();
// 记录点击位置与滑动后的坐标距离
let offset = this.mouseDownPosition - e.offsetX;
// 点击时的中间时间 + 坐标距离差转换后的时间 = 移动后的中间时间
let date = new Date(this.mouseDownMeddleTime).getTime() + offset * this.px_second * 1000;
date = this.boundary_time(date);
this.meddleTime = moment(date).format("YYYY-MM-DD HH:mm:ss");
},
drow() {
//重置高宽清空画布
this.canvas.width = this.canvas.width;
this.canvas.height = this.canvas.height;
this.ctx.scale(this.dpr, this.dpr);
this.drowMark();
this.drowScaleLine();
this.drowMeddleLine(this.meddleTime);
},
// 画鼠标移上去的线
drowMoveLine(e) {
let date = e.offsetX * this.px_second * 1000 + this.firstTime;
// 超出有效时间范围就不做渲染
if (
(this.realTimeRange[0] && date < new Date(this.realTimeRange[0]).getTime()) ||
(this.realTimeRange[1] && date > new Date(this.realTimeRange[1]).getTime())
) {
return;
}
this.ctx.beginPath();
this.ctx.moveTo(e.offsetX - 1, 0);
this.ctx.lineTo(e.offsetX - 1, 45);
this.ctx.strokeStyle = this.colors.moveLine;
this.ctx.lineWidth = 1;
this.ctx.stroke();
this.ctx.fillStyle = this.colors.moveDate;
let text = this.getMark(date)?.text;
text = text ? ` (${text})` : "";
this.ctx.font = `${12}px serif`;
this.ctx.fillText(moment(date).format("YYYY-MM-DD HH:mm:ss") + text, e.offsetX - 50, 55);
},
// 画中间时间的线
drowMeddleLine(time) {
this.ctx.beginPath();
this.ctx.moveTo(this.canvasWidth / 2, 0);
this.ctx.lineTo(this.canvasWidth / 2, 30);
this.ctx.strokeStyle = this.colors.meddleLine;
this.ctx.lineWidth = 1;
this.ctx.stroke();
this.ctx.fillStyle = this.colors.meddleLine;
this.ctx.font = `12px serif`;
this.ctx.fillText(time, this.canvasWidth / 2 - 50, 40);
},
// 画刻度线
drowScaleLine() {
// // 画canvas上部分的颜色
// this.ctx.fillStyle = "rgba(69, 72, 76, 0.5)";
// this.ctx.fillRect(0, 0, this.canvasWidth, 20);
// 画第一个刻度线
let time = new Date(this.getFirstLineTime()).getTime() - this.firstTime;
//几个像素点后画第一个刻度
let p = time / 1000 / this.px_second;
// 每条线之间的间隔 scaleLine_minute来确定每个格代表多长时间
let line_px = (this.scaleLine_minute * 60) / this.px_second;
for (let i = p; i <= this.canvasWidth; i += line_px) {
let date = this.firstTime + i * this.px_second * 1000;
if (
(this.realTimeRange[0] && date < new Date(this.realTimeRange[0]).getTime()) ||
(this.realTimeRange[1] && date > new Date(this.realTimeRange[1]).getTime())
) {
continue;
}
let time = moment(date).format("HH:mm");
this.ctx.beginPath();
this.ctx.moveTo(i, 0);
this.ctx.lineTo(i, this.showTime(time) ? 20 : 10);
this.ctx.strokeStyle = this.colors.scaleLine;
this.ctx.lineWidth = 1;
this.ctx.stroke();
this.ctx.fillStyle = this.colors.scaleLine;
this.ctx.font = `12px serif`;
if (time == "00:00") {
let show_time = moment(date).format("YYYY-MM-DD");
this.ctx.fillText(show_time, i - 28, 30);
} else if (this.showTime(time)) {
this.ctx.fillText(time, i - 10, 30);
}
}
},
// 计算默认中间时间
setStartMeddleTime() {
//根据可活动时间范围计算中间值
let time;
if (this.realTimeRange[0] && this.realTimeRange[1]) {
time = moment(
(new Date(this.realTimeRange[0]).getTime() + new Date(this.realTimeRange[1]).getTime()) / 2
).format("YYYY-MM-DD HH:mm:ss");
}
//设置默认中间时间（优先级：startMeddleTime参数指定>按有可活动时间范围计算>当前时间）
this.meddleTime = this.startMeddleTime || time || moment(new Date()).format("YYYY-MM-DD HH:mm:ss");
},
//获取刻度上的第一个时间
getFirstLineTime() {
const start = moment(this.firstTime);
//第一个时间不一定刚好落在刻度上，计算少了多少分才能到第一个刻度上（开始位置留白）
const remainder = this.scaleLine_minute - (start.minute() % this.scaleLine_minute);
return start.add(remainder, "minutes").format("YYYY-MM-DD HH:mm");
},
// 刻度时间显示(按级别显示)
showTime(time) {
// 每2时级
if (this.whole_hour >= 16) {
return [
"00:00",
"02:00",
"04:00",
"06:00",
"08:00",
"10:00",
"12:00",
"14:00",
"16:00",
"18:00",
"20:00",
"22:00",
].includes(time);
}
// 每1时级
if (this.whole_hour >= 8) {
return [
"00:00",
"02:00",
"03:00",
"04:00",
"05:00",
"06:00",
"07:00",
"08:00",
"09:00",
"10:00",
"11:00",
"12:00",
"13:00",
"14:00",
"15:00",
"16:00",
"17:00",
"18:00",
"19:00",
"20:00",
"21:00",
"22:00",
].includes(time);
}
// 每20分
if (this.whole_hour >= 4) {
return ["00", "20", "40"].find((item) => time.endsWith(item));
}
// 每10分
return ["00", "10", "20", "30", "40", "50"].find((item) => time.endsWith(item));
},
// 画标记的时间
drowMark() {
// 画canvas上部分的颜色
this.ctx.fillStyle = this.colors.scaleBar;
this.ctx.fillRect(0, 0, this.canvasWidth, 20);
this.markTime.forEach((item) => {
//标签所有范围超出时间区域（realTimeRange）就不渲染
if (
(this.realTimeRange[0] && new Date(item.endTime).getTime() < new Date(this.realTimeRange[0]).getTime()) ||
(this.realTimeRange[1] && new Date(item.beginTime).getTime() > new Date(this.realTimeRange[1]).getTime())
) {
return;
}
this.ctx.fillStyle = item.bgColor;
// 标签起点超时间效区域realTimeRange[0]就用realTimeRange[0]做为起点时间
let beginTime =
this.realTimeRange[0] && new Date(item.beginTime).getTime() < new Date(this.realTimeRange[0]).getTime()
? this.realTimeRange[0]
: item.beginTime;
// 标签终点超时间效区域realTimeRange[1]就用realTimeRange[1]做为终点时间
let endTime =
this.realTimeRange[1] && new Date(item.endTime).getTime() > new Date(this.realTimeRange[1]).getTime()
? this.realTimeRange[1]
: item.endTime;
let sx = (new Date(beginTime).getTime() - this.firstTime) / 1000 / this.px_second;
let ex = (new Date(endTime).getTime() - this.firstTime) / 1000 / this.px_second;
this.ctx.fillRect(sx, 0, ex - sx, 20);
});
},
//获取点坐标的距离（用于移动端双指放大缩小手势识别）
getDistance(a, b) {
const x = a.x - b.x;
const y = a.y - b.y;
return Math.hypot(x, y); // Math.sqrt(x * x + y * y);
},
//超出有效时间范围，返回边界值
boundary_time(date) {
//超出起点有效区域
if (this.realTimeRange[0] && date < new Date(this.realTimeRange[0]).getTime()) {
return new Date(this.realTimeRange[0]).getTime();
}
// 超出端点有效区域
else if (this.realTimeRange[1] && date > new Date(this.realTimeRange[1]).getTime()) {
return new Date(this.realTimeRange[1]).getTime();
} else {
return date;
}
},
//获取标记对象
getMark(date) {
return this.markTime.find(
(item) =>
new Date(item.beginTime).getTime() < new Date(date).getTime() &&
new Date(date).getTime() < new Date(item.endTime).getTime()
);
},
/**
*设置时间
* @param {String} date 中间时间
* @param @param {String| Array} timeRange 可切换到新时间范围(如下个录像时段)，可选参数
*/
// setDate(date, timeRange) {
// if (timeRange) {
// this.setTimeRange(timeRange);
// }
// this.meddleTime = date;
// this.drow();
// },
/**
*设置时间轴可活动的时间区域
* @param {String| Array} timeRange 时间范围，不传默认组件timeRange参数原始值
*/
// setTimeRange(timeRange) {
// this.realTimeRange = timeRange || this.timeRange;
// if (typeof this.realTimeRange == "string") {
// let date = this.realTimeRange ? moment(this.realTimeRange).format("YYYY-MM-DD") : moment().format("YYYY-MM-DD");
// this.realTimeRange = [date + " 00:00:00", date + " 23:59:59:59"];
// }
// },
},
computed: {
// canvas最左边的时间的时间戳（滑动计算时间）
firstTime() {
return new Date(this.meddleTime).getTime() - ((this.px_second * this.canvasWidth) / 2) * 1000;
},
// 每个像素点对应多少秒（像素转时间和刻度）
px_second() {
let second = (this.whole_hour * 60 * 60) / this.canvasWidth;
// 保证不管缩小到什么宽度，刻度线都不会挤压在一起
if (second > this.minPxSecond) second = this.minPxSecond;
return second;
},
// 计算timeRange 兼容string |Array转换
realTimeRange() {
if (typeof this.timeRange == "string") {
let date = this.timeRange ? moment(this.timeRange).format("YYYY-MM-DD") : moment().format("YYYY-MM-DD");
return [date + " 00:00:00", date + " 23:59:59:59"];
} else {
return this.timeRange;
}
},
// 每个刻度线之间的多分钟（画刻度）
scaleLine_minute() {
if (this.whole_hour >= 20) {
//30分钟半小时
return 30;
}
if (this.whole_hour >= 16) {
return 20;
}
if (this.whole_hour >= 12) {
return 15;
}
if (this.whole_hour >= 8) {
return 10;
}
if (this.whole_hour >= 4) {
return 5;
}
return 2;
},
//计算需要重新绘制的参数，方便统一监听
changeProps() {
let { startMeddleTime, markTime, timeRange } = this;
this.setStartMeddleTime();
return { startMeddleTime, markTime, timeRange };
},
},
watch: {
//监听需要重新绘制的参数
changeProps: function (newV) {
this.drow();
},
},
};
// import Hammer from "./assets/hammerjs";
</script>
\ No newline at end of file
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