<template>
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<div class="public-legend-all"
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ref='publicLegendAll'>
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<div class="legend-title"
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@mousedown="move">
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<i class="el-icon-document"></i>
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图例
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<i class="shrink"
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:class="
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legendFlag == true
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? 'el-icon-caret-bottom'
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: 'el-icon-caret-top'
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"
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@click="legendFlag = !legendFlag"></i>
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</div>
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<div class="public-legends"
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v-show="legendFlag">
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<div v-for="(item, index) in legendsDetail"
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:key="index">
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<h3>{{ item.title }}</h3>
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<ul>
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<li v-for="(it, ind) in item.content"
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:key="ind">
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<span>{{ it.label }}: </span>
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<img :src="it.src"
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alt="" />
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</li>
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</ul>
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</div>
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</div>
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</div>
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</template>
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<script>
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export default {
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name: 'Legend',
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props: ['legendsDetail'],
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data () {
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return {
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legendFlag: true
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}
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},
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methods: {
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move (e) {
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const odiv = this.$refs.publicLegendAll // 获取目标元素
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// 算出鼠标相对元素的位置
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const disX = e.clientX - odiv.offsetLeft
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const disY = e.clientY - odiv.offsetTop
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const disH = odiv.offsetHeight
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const disW = odiv.offsetWidth
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document.onmousemove = (e) => {
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// 鼠标按下并移动的事件
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// 用鼠标的位置减去鼠标相对元素的位置，得到元素的位置
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let left = e.clientX - disX
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let top = e.clientY - disY
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// 绑定元素位置到positionX和positionY上面
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if (left >= window.innerWidth - disW) {
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left = window.innerWidth - disW
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}
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if (left <= 0) {
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left = 0
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}
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if (top >= window.innerHeight - disH) {
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top = window.innerHeight - disH
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}
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if (top <= 60) {
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top = 60
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}
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// 移动当前元素
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odiv.style.left = (left) + 'px'
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odiv.style.top = (top) + 'px'
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odiv.style.bottom = 'auto'
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}
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document.onmouseup = (e) => {
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document.onmousemove = null
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document.onmouseup = null
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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" scope>
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.public-legend-all {
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position: fixed;
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right: 10px;
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top: auto;
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bottom: 10px;
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width: 160px;
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height: auto !important;
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background: #fff;
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text-align: center;
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color: #677788 !important;
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z-index: 1111 !important;
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box-shadow: 0px 0px 4px 1px #ccc;
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.legend-title {
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position: relative;
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padding: 0 10px;
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height: 36px;
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line-height: 36px;
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text-align: left;
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background: #d5e9ff;
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cursor: move;
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font-size: 18px;
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.shrink {
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position: absolute;
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top: 10px;
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right: 10px;
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cursor: pointer;
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}
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}
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.public-legends {
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background: #fff;
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border-radius: 10px;
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text-align: center;
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padding: 20px 10px 0 10px;
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max-height: 320px;
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overflow-y: auto;
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& > div {
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position: relative;
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padding-bottom: 14px;
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h3 {
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position: absolute;
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top: -22px;
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left: 20px;
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background: #fff;
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color: #4fa9fd;
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padding: 0 8px;
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font-size: 13px;
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border-radius: 10px;
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}
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ul {
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margin: 0;
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padding: 8px 0 6px 0;
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border: 1px dashed #4fa9fd;
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border-radius: 10px;
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li {
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padding: 0 10px;
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display: flex;
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list-style: none;
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line-height: 28px;
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align-items: center;
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font-size: 16px;
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span {
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flex: 1;
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text-align: left;
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}
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img {
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width: 14px;
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height: 14px;
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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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</style>
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