vue3 甘特图（三）：甘特图右侧内容拖动展示内容
解决因多个项目周期跨度不同，在一页屏幕里展示不完全，需要通过拖动甘特图下方的滚动条，去查看对应时间段内的内容
拖拽滚动视图，展示对应时间甘特图
构思，通过监听内容拖拽的距离，同时使滚动条滑动相同距离，从而达到效果。
//拖拽滚动视图
const scrollInit = () => {
const nav = document.querySelectorAll('.gantt_task')[0]
const parNav = document.querySelectorAll('.gantt_hor_scroll')[0]
parNav.scrollLeft = 0
let flag
let downX
let scrollLeft
nav.addEventListener('mousedown', function (event) {
flag = true
downX = event.clientX // 获取到点击的x下标
scrollLeft = this.scrollLeft // 获取当前元素滚动条的偏移量
})
nav.addEventListener('mousemove', function (event) {
if (flag) {
let moveX = event.clientX
let scrollX = moveX - downX
parNav.scrollLeft = scrollLeft - scrollX
}
})
// 鼠标抬起停止拖动
nav.addEventListener('mouseup', function () {
flag = false
})
// 鼠标离开元素停止拖动
nav.addEventListener('mouseleave', function (event) {
flag = false
})
}
完整代码
<template>
<section class="my-gantt">
<div class="time-box">
<el-radio-group v-model="data.timeState" @change="changeTime">
<el-radio-button
v-for="(time, t_index) in data.timeList"
:key="t_index"
:label="time.code"
size="default"
border
>{{ time.name }}</el-radio-button
>
</el-radio-group>
</div>
<div id="gantt_here" class="gantt-container"></div>
</section>
</template>
<script setup>
import { reactive, toRefs, onBeforeMount, onMounted, watchEffect, defineExpose } from 'vue'
import { gantt } from 'dhtmlx-gantt'
import 'dhtmlx-gantt/codebase/dhtmlxgantt.css'
const data = reactive({
timeList: [
// {
// name: "周",
// code: "week",
// },
{
name: '月',
code: 'month'
},
{
name: '季',
code: 'quarter'
},
{
name: '年',
code: 'year'
}
],
timeState: 'month',
demoData: {
data: [
{
id: 520,
projectName: '项目1',
startTime: '2023-09-25',
endTime: '2023-10-31',
showEndTime: '2023-11-01',
projectStatus: '暂无任务',
projectProgress: 0,
projectRatio: '',
projectTotalTime: 0,
projectUsedTime: 0,
functionName: '',
xmdj: '2',
cityName: '成都',
name: '1',
projectMap: {},
parent: 0,
start_date: '2023-09-24 16:00:00.000',
end_date: '2023-10-31 16:00:00.000',
progress: 0.5,
duration: 37
},
{
id: 517,
projectName: '项目2',
startTime: '2023-09-18',
endTime: '2023-10-23',
showEndTime: '2023-10-24',
projectStatus: '暂无任务',
projectProgress: 0,
projectRatio: '',
projectTotalTime: 0,
projectUsedTime: 0,
functionName: '',
xmdj: '0',
cityName: '深圳',
name: '2',
projectMap: {},
parent: 0,
start_date: '2023-09-17 16:00:00.000',
end_date: '2023-10-23 16:00:00.000',
progress: 0.2
},
{
id: 505,
projectName: '项目3',
startTime: '2023-09-04',
endTime: '2023-09-30',
showEndTime: '2023-10-01',
projectStatus: '滞后',
projectProgress: 0.76,
projectRatio: 0.12,
projectTotalTime: 3267.6,
projectUsedTime: 2477.7,
functionName: '现状还原',
xmdj: '3',
cityName: '成都',
name: '3',
projectMap: {},
parent: 0,
start_date: '2023-09-03 16:00:00.000',
end_date: '2023-09-30 16:00:00.000',
progress: 0.1
},
{
id: 508,
projectName: '项目4',
startTime: '2023-09-04',
endTime: '2023-10-20',
showEndTime: '2023-10-21',
projectStatus: '滞后',
projectProgress: 0.57,
projectRatio: 0.04,
projectTotalTime: 3582.5,
projectUsedTime: 2033.2,
functionName: '生活圈',
xmdj: '1',
cityName: '成都',
name: '4',
projectMap: {},
parent: 0,
start_date: '2023-09-03 16:00:00.000',
end_date: '2023-10-20 16:00:00.000',
progress: 0.15
},
{
id: 511,
projectName: '项目5',
startTime: '2023-09-01',
endTime: '2023-10-31',
showEndTime: '2023-11-01',
projectStatus: '滞后',
projectProgress: 0.07,
projectRatio: 0.03,
projectTotalTime: 2150.5,
projectUsedTime: 140,
functionName: '悬浮球',
xmdj: '1',
cityName: '成都',
name: '5',
projectMap: {},
parent: 0,
start_date: '2023-07-31 16:00:00.000',
end_date: '2023-10-31 16:00:00.000',
progress: 0.28
},
{
id: 507,
projectName: '项目6',
startTime: '2023-08-28',
endTime: '2023-10-01',
showEndTime: '2023-10-02',
projectStatus: '滞后',
projectProgress: 0.48,
projectRatio: 0.21,
projectTotalTime: 4957,
projectUsedTime: 2367,
functionName: '产品原型图',
xmdj: '1',
cityName: '三亚',
name: '6',
projectMap: {
美术: 1
},
parent: 0,
start_date: '2023-07-27 16:00:00.000',
end_date: '2023-10-01 16:00:00.000',
progress: 0.33
},
{
id: 1,
projectName: '项目7',
startTime: '2023-08-28',
endTime: '2023-10-25',
showEndTime: '2023-10-26',
projectStatus: '滞后',
projectProgress: 0.27,
projectRatio: 0.15,
projectTotalTime: 2027.5,
projectUsedTime: 557,
functionName: '测量工具',
xmdj: '1',
cityName: '佛山',
name: '7',
projectMap: {},
parent: 0,
start_date: '2023-06-27 16:00:00.000',
end_date: '2023-10-25 16:00:00.000',
progress: 0.67
},
{
id: 2,
projectName: '项目7',
startTime: '2023-08-28',
endTime: '2023-10-25',
showEndTime: '2023-10-26',
projectStatus: '滞后',
projectProgress: 0.27,
projectRatio: 0.15,
projectTotalTime: 2027.5,
projectUsedTime: 557,
functionName: '测量工具',
xmdj: '1',
cityName: '佛山',
name: '7',
projectMap: {},
parent: 0,
start_date: '2023-06-27 16:00:00.000',
end_date: '2023-10-25 16:00:00.000',
progress: 0.67
},
{
id: 3,
projectName: '项目7',
startTime: '2023-08-28',
endTime: '2023-10-25',
showEndTime: '2023-10-26',
projectStatus: '滞后',
projectProgress: 0.27,
projectRatio: 0.15,
projectTotalTime: 2027.5,
projectUsedTime: 557,
functionName: '测量工具',
xmdj: '1',
cityName: '佛山',
name: '7',
projectMap: {},
parent: 0,
start_date: '2023-06-27 16:00:00.000',
end_date: '2023-10-25 16:00:00.000',
progress: 0.67
},
{
id: 4,
projectName: '项目7',
startTime: '2023-08-28',
endTime: '2023-10-25',
showEndTime: '2023-10-26',
projectStatus: '滞后',
projectProgress: 0.27,
projectRatio: 0.15,
projectTotalTime: 2027.5,
projectUsedTime: 557,
functionName: '测量工具',
xmdj: '1',
cityName: '佛山',
name: '7',
projectMap: {},
parent: 0,
start_date: '2023-06-27 16:00:00.000',
end_date: '2023-10-25 16:00:00.000',
progress: 0.67
},
{
id: 5,
projectName: '项目7',
startTime: '2023-08-28',
endTime: '2023-10-25',
showEndTime: '2023-10-26',
projectStatus: '滞后',
projectProgress: 0.27,
projectRatio: 0.15,
projectTotalTime: 2027.5,
projectUsedTime: 557,
functionName: '测量工具',
xmdj: '1',
cityName: '佛山',
name: '7',
projectMap: {},
parent: 0,
start_date: '2023-06-27 16:00:00.000',
end_date: '2023-10-25 16:00:00.000',
progress: 0.67
},
{
id: 6,
projectName: '项目7',
startTime: '2023-08-28',
endTime: '2023-10-25',
showEndTime: '2023-10-26',
projectStatus: '滞后',
projectProgress: 0.27,
projectRatio: 0.15,
projectTotalTime: 2027.5,
projectUsedTime: 557,
functionName: '测量工具',
xmdj: '1',
cityName: '佛山',
name: '7',
projectMap: {},
parent: 0,
start_date: '2023-06-27 16:00:00.000',
end_date: '2023-10-25 16:00:00.000',
progress: 0.67
},
{
id: 7,
projectName: '项目7',
startTime: '2023-08-28',
endTime: '2023-10-25',
showEndTime: '2023-10-26',
projectStatus: '滞后',
projectProgress: 0.27,
projectRatio: 0.15,
projectTotalTime: 2027.5,
projectUsedTime: 557,
functionName: '测量工具',
xmdj: '1',
cityName: '佛山',
name: '7',
projectMap: {},
parent: 0,
start_date: '2023-06-27 16:00:00.000',
end_date: '2023-10-25 16:00:00.000',
progress: 0.67
},
{
id: 8,
projectName: '项目7',
startTime: '2023-08-28',
endTime: '2023-10-25',
showEndTime: '2023-10-26',
projectStatus: '滞后',
projectProgress: 0.27,
projectRatio: 0.15,
projectTotalTime: 2027.5,
projectUsedTime: 557,
functionName: '测量工具',
xmdj: '1',
cityName: '佛山',
name: '7',
projectMap: {},
parent: 0,
start_date: '2023-06-27 16:00:00.000',
end_date: '2023-10-25 16:00:00.000',
progress: 0.67
},
{
id: 9,
projectName: '项目7',
startTime: '2023-08-28',
endTime: '2023-10-25',
showEndTime: '2023-10-26',
projectStatus: '滞后',
projectProgress: 0.27,
projectRatio: 0.15,
projectTotalTime: 2027.5,
projectUsedTime: 557,
functionName: '测量工具',
xmdj: '1',
cityName: '佛山',
name: '7',
projectMap: {},
parent: 0,
start_date: '2023-06-27 16:00:00.000',
end_date: '2023-10-25 16:00:00.000',
progress: 0.67
}
]
}
})
const zoomConfig = {
levels: [
{
name: 'day',
scale_height: 60,
scales: [{ unit: 'day', step: 1, format: '%d %M' }]
},
{
name: 'week',
scale_height: 60,
scales: [
{
unit: 'week',
step: 1,
format: function (date) {
let dateToStr = gantt.date.date_to_str('%m-%d')
let endDate = gantt.date.add(date, -6, 'day')
let weekNum = gantt.date.date_to_str('%W')(date) //第几周
return dateToStr(endDate) + ' 至 ' + dateToStr(date)
}
},
{
unit: 'day',
step: 1,
format: '%d', // + "周%D"
css: function (date) {
if (date.getDay() == 0 || date.getDay() == 6) {
return 'day-item weekend weekend-border-bottom'
} else {
return 'day-item'
}
}
}
]
},
{
name: 'month',
scale_height: 60,
min_column_width: 18,
scales: [
{ unit: 'month', format: '%Y-%m' },
{
unit: 'day',
step: 1,
format: '%d',
css: function (date) {
if (date.getDay() == 0 || date.getDay() == 6) {
return 'day-item weekend weekend-border-bottom'
} else {
return 'day-item'
}
}
}
]
},
{
name: 'quarter',
height: 60,
min_column_width: 110,
scales: [
{
unit: 'quarter',
step: 1,
format: function (date) {
let yearStr = new Date(date).getFullYear() + '年'
let dateToStr = gantt.date.date_to_str('%M')
let endDate = gantt.date.add(gantt.date.add(date, 3, 'month'), -1, 'day')
return yearStr + dateToStr(date) + ' - ' + dateToStr(endDate)
}
},
{
unit: 'week',
step: 1,
format: function (date) {
let dateToStr = gantt.date.date_to_str('%m-%d')
let endDate = gantt.date.add(date, 6, 'day')
let weekNum = gantt.date.date_to_str('%W')(date)
return dateToStr(date) + ' 至 ' + dateToStr(endDate)
}
}
]
},
{
name: 'year',
scale_height: 50,
min_column_width: 150,
scales: [
{ unit: 'year', step: 1, format: '%Y年' },
{ unit: 'month', format: '%Y-%m' }
]
}
]
}
//初始化甘特图
const initGantt = () => {
let dateToStr = gantt.date.date_to_str('%Y.%m.%d')
gantt.config.grid_width = 350
gantt.config.add_column = false //添加符号
//时间轴图表中，如果不设置，只有行边框，区分上下的任务，设置之后带有列的边框，整个时间轴变成格子状。
gantt.config.autofit = false
gantt.config.row_height = 60
gantt.config.bar_height = 34
// gantt.config.fit_tasks = true //自动延长时间刻度，以适应所有显示的任务
gantt.config.auto_types = true //将包含子任务的任务转换为项目，将没有子任务的项目转换回任务
gantt.config.xml_date = '%Y-%m-%d' //甘特图时间数据格式
gantt.config.readonly = true //是否只读
gantt.templates.task_text = function (start, end, task) {
return task.projectName
}
gantt.config.columns = [
{
name: 'projectName',
label: '项目名称',
tree: true,
width: '*'
},
{
name: '',
label: '时间',
align: 'center',
width: 150,
template: function (item) {
return `<div class="project-time">${
dateToStr(item.start_date) + '-' + item.endTime.replace(/[-]/g, '.')
}</div>`
}
}
]
gantt.i18n.setLocale('cn') //设置语言
gantt.init('gantt_here') //初始化
gantt.parse(data.demoData) //填充数据
scrollInit()
gantt.ext.zoom.init(zoomConfig) //配置初始化扩展
gantt.ext.zoom.setLevel('month') //切换到指定的缩放级别
}
//拖拽滚动视图
const scrollInit = () => {
const nav = document.querySelectorAll('.gantt_task')[0]
const parNav = document.querySelectorAll('.gantt_hor_scroll')[0]
parNav.scrollLeft = 0
let flag
let downX
let scrollLeft
nav.addEventListener('mousedown', function (event) {
flag = true
downX = event.clientX // 获取到点击的x下标
scrollLeft = this.scrollLeft // 获取当前元素滚动条的偏移量
})
nav.addEventListener('mousemove', function (event) {
if (flag) {
let moveX = event.clientX
let scrollX = moveX - downX
parNav.scrollLeft = scrollLeft - scrollX
}
})
// 鼠标抬起停止拖动
nav.addEventListener('mouseup', function () {
flag = false
})
// 鼠标离开元素停止拖动
nav.addEventListener('mouseleave', function (event) {
flag = false
})
}
const changeTime = () => {
gantt.ext.zoom.setLevel(data.timeState)
}
onBeforeMount(() => {})
onMounted(() => {
initGantt()
})
watchEffect(() => {})
defineExpose({
...toRefs(data)
})
</script>
<style scoped lang="scss">
.my-gantt {
height: 800px;
width: 100vw;
.time-box {
text-align: center;
margin-bottom: 20px;
}
::v-deep .gantt-container {
width: 100%;
height: 100%;
.weekend {
background: #ff9e2f;
color: #fff;
}
}
}
</style>
后续：任务条展示多种数据，或一行任务展示多个子任务
