<template>
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<div class="container">
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<el-dialog v-model="visible" draggable title="审批记录" :width="props.width" :height="props.height" :close-on-click-modal="false">
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<el-tabs v-model="tabActiveName" class="demo-tabs">
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<el-tab-pane v-loading="loading" label="流程图" name="image">
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<div
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ref="imageWrapperRef"
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class="image-wrapper"
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@wheel="handleMouseWheel"
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@mousedown="handleMouseDown"
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@mousemove="handleMouseMove"
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@mouseup="handleMouseUp"
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@mouseleave="handleMouseLeave"
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@dblclick="resetTransform"
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:style="transformStyle"
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>
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<el-image :src="imgUrl" class="scalable-image" />
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</div>
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<!-- <img :src="imgUrl" width="100%" style="margin: 0 auto" />-->
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</el-tab-pane>
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<el-tab-pane v-loading="loading" label="审批信息" name="info">
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<div>
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<el-table :data="historyList" style="width: 100%" border fit>
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<el-table-column type="index" label="序号" align="center" width="60"></el-table-column>
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<el-table-column prop="nodeName" label="任务名称" sortable align="center"></el-table-column>
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<el-table-column prop="approveName" :show-overflow-tooltip="true" label="办理人" sortable align="center">
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<template #default="scope">
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<template v-if="scope.row.approveName">
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<el-tag v-for="(item, index) in scope.row.approveName.split(',')" :key="index" type="success">{{ item }}</el-tag>
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</template>
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<template v-else> <el-tag type="success">无</el-tag></template>
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</template>
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</el-table-column>
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<el-table-column prop="flowStatus" label="状态" width="80" sortable align="center">
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<template #default="scope">
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<dict-tag :options="wf_task_status" :value="scope.row.flowStatus"></dict-tag>
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</template>
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</el-table-column>
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<el-table-column prop="message" label="审批意见" :show-overflow-tooltip="true" sortable align="center"></el-table-column>
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<el-table-column prop="createTime" label="开始时间" width="160" :show-overflow-tooltip="true" sortable align="center"></el-table-column>
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<el-table-column prop="updateTime" label="结束时间" width="160" :show-overflow-tooltip="true" sortable align="center"></el-table-column>
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<el-table-column
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prop="runDuration"
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label="运行时常"
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width="140"
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:show-overflow-tooltip="true"
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sortable
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align="center"
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></el-table-column>
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<el-table-column prop="attachmentList" width="120" label="附件" align="center">
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<template #default="scope">
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<el-popover v-if="scope.row.attachmentList && scope.row.attachmentList.length > 0" placement="right" :width="310" trigger="click">
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<template #reference>
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<el-button type="primary" style="margin-right: 16px">附件</el-button>
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</template>
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<el-table border :data="scope.row.attachmentList">
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<el-table-column prop="originalName" width="202" :show-overflow-tooltip="true" label="附件名称"></el-table-column>
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<el-table-column prop="name" width="80" align="center" :show-overflow-tooltip="true" label="操作">
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<template #default="tool">
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<el-button type="text" @click="handleDownload(tool.row.ossId)">下载</el-button>
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</template>
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</el-table-column>
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</el-table>
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</el-popover>
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</template>
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</el-table-column>
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</el-table>
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</div>
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</el-tab-pane>
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</el-tabs>
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</el-dialog>
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</div>
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</template>
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<script lang="ts" setup>
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import { flowImage } from '@/api/workflow/instance';
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import { propTypes } from '@/utils/propTypes';
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import { listByIds } from '@/api/system/oss';
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const { proxy } = getCurrentInstance() as ComponentInternalInstance;
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const { wf_task_status } = toRefs<any>(proxy?.useDict('wf_task_status'));
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const props = defineProps({
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width: propTypes.string.def('80%'),
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height: propTypes.string.def('100%')
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});
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const loading = ref(false);
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const visible = ref(false);
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const historyList = ref<Array<any>>([]);
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const tabActiveName = ref('image');
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const imgUrl = ref('');
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//初始化查询审批记录
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const init = async (businessId: string | number) => {
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visible.value = true;
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loading.value = true;
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tabActiveName.value = 'image';
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historyList.value = [];
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flowImage(businessId).then((resp) => {
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if (resp.data) {
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historyList.value = resp.data.list;
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imgUrl.value = 'data:image/gif;base64,' + resp.data.image;
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if (historyList.value.length > 0) {
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historyList.value.forEach((item) => {
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if (item.ext) {
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getIds(item.ext).then((res) => {
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item.attachmentList = res.data;
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});
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} else {
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item.attachmentList = [];
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}
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});
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}
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loading.value = false;
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}
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});
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};
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const getIds = async (ids: string | number) => {
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const res = await listByIds(ids);
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return res;
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};
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/** 下载按钮操作 */
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const handleDownload = (ossId: string) => {
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proxy?.$download.oss(ossId);
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};
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const imageWrapperRef = ref<HTMLElement | null>(null);
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const scale = ref(1); // 初始缩放比例
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const maxScale = 3; // 最大缩放比例
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const minScale = 0.5; // 最小缩放比例
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let isDragging = false;
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let startX = 0;
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let startY = 0;
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let currentTranslateX = 0;
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let currentTranslateY = 0;
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const handleMouseWheel = (event: WheelEvent) => {
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event.preventDefault();
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let newScale = scale.value - event.deltaY / 1000;
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newScale = Math.max(minScale, Math.min(newScale, maxScale));
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if (newScale !== scale.value) {
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scale.value = newScale;
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resetDragPosition(); // 重置拖拽位置，使图片居中
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}
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};
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const handleMouseDown = (event: MouseEvent) => {
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if (scale.value > 1) {
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event.preventDefault(); // 阻止默认行为，防止拖拽
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isDragging = true;
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startX = event.clientX;
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startY = event.clientY;
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}
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};
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const handleMouseMove = (event: MouseEvent) => {
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if (!isDragging || !imageWrapperRef.value) return;
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const deltaX = event.clientX - startX;
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const deltaY = event.clientY - startY;
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startX = event.clientX;
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startY = event.clientY;
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currentTranslateX += deltaX;
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currentTranslateY += deltaY;
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// 边界检测，防止图片被拖出容器
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const bounds = getBounds();
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if (currentTranslateX > bounds.maxTranslateX) {
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currentTranslateX = bounds.maxTranslateX;
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} else if (currentTranslateX < bounds.minTranslateX) {
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currentTranslateX = bounds.minTranslateX;
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}
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if (currentTranslateY > bounds.maxTranslateY) {
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currentTranslateY = bounds.maxTranslateY;
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} else if (currentTranslateY < bounds.minTranslateY) {
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currentTranslateY = bounds.minTranslateY;
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}
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applyTransform();
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};
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const handleMouseUp = () => {
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isDragging = false;
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};
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const handleMouseLeave = () => {
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isDragging = false;
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};
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const resetTransform = () => {
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scale.value = 1;
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currentTranslateX = 0;
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currentTranslateY = 0;
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applyTransform();
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};
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const resetDragPosition = () => {
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currentTranslateX = 0;
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currentTranslateY = 0;
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applyTransform();
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};
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const applyTransform = () => {
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if (imageWrapperRef.value) {
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imageWrapperRef.value.style.transform = `translate(${currentTranslateX}px, ${currentTranslateY}px) scale(${scale.value})`;
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}
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};
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const getBounds = () => {
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if (!imageWrapperRef.value) return { minTranslateX: 0, maxTranslateX: 0, minTranslateY: 0, maxTranslateY: 0 };
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const imgRect = imageWrapperRef.value.getBoundingClientRect();
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const containerRect = imageWrapperRef.value.parentElement?.getBoundingClientRect() ?? imgRect;
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const minTranslateX = (containerRect.width - imgRect.width * scale.value) / 2;
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const maxTranslateX = -(containerRect.width - imgRect.width * scale.value) / 2;
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const minTranslateY = (containerRect.height - imgRect.height * scale.value) / 2;
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const maxTranslateY = -(containerRect.height - imgRect.height * scale.value) / 2;
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return { minTranslateX, maxTranslateX, minTranslateY, maxTranslateY };
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};
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const transformStyle = computed(() => ({
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transition: isDragging ? 'none' : 'transform 0.2s ease',
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}));
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/**
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* 对外暴露子组件方法
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*/
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defineExpose({
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init
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});
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</script>
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<style lang="scss" scoped>
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.triangle {
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box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
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border-radius: 6px;
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}
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.triangle::after {
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content: ' ';
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position: absolute;
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top: 8em;
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right: 215px;
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border: 15px solid;
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border-color: transparent #fff transparent transparent;
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}
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.container {
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:deep(.el-dialog .el-dialog__body) {
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max-height: calc(100vh - 170px) !important;
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min-height: calc(100vh - 170px) !important;
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}
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}
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.image-wrapper {
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width: 100%;
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height: 100%;
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overflow: hidden;
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position: relative;
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margin: 0 auto;
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display: flex;
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justify-content: center;
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align-items: center;
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user-select: none; /* 禁用文本选择 */
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cursor: grab; /* 设置初始鼠标指针为可拖动 */
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}
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.image-wrapper:active {
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cursor: grabbing; /* 当正在拖动时改变鼠标指针 */
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}
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.scalable-image {
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width: 100%;
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}
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</style>
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