2025-08-05 15:32:12 +08:00
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<script lang="ts" setup>
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2025-09-01 22:24:15 +08:00
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// TODO @芋艿:后续合并到 diy-editor 里,并不是通用的;
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2025-08-05 15:32:12 +08:00
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import type { Point, Rect } from './util';
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import { ref, watch } from 'vue';
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import { IconifyIcon } from '@vben/icons';
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import { createRect, isContains, isOverlap } from './util';
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// 魔方编辑器
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// 有两部分组成:
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// 1. 魔方矩阵:位于底层,由方块组件的二维表格,用于创建热区
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// 操作方法:
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// 1.1 点击其中一个方块就会进入热区选择模式
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// 1.2 再次点击另外一个方块时,结束热区选择模式
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// 1.3 在两个方块中间的区域创建热区
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// 如果两次点击的都是同一方块,就只创建一个格子的热区
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// 2. 热区:位于顶层,采用绝对定位,覆盖在魔方矩阵上面。
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defineOptions({ name: 'MagicCubeEditor' });
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// 定义属性
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const props = defineProps({
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// 热区列表
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modelValue: {
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type: Array as () => Rect[],
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default: () => [],
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},
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// 行数,默认 4 行
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rows: {
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type: Number,
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default: 4,
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},
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// 列数,默认 4 列
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cols: {
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type: Number,
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default: 4,
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},
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// 方块大小,单位px,默认75px
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cubeSize: {
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type: Number,
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default: 75,
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},
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});
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// 发送模型更新
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const emit = defineEmits(['update:modelValue', 'hotAreaSelected']);
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/**
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* 方块
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* @property active 是否激活
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*/
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type Cube = Point & { active: boolean };
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// 魔方矩阵:所有的方块
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const cubes = ref<Cube[][]>([]);
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// 监听行数、列数变化
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watch(
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() => [props.rows, props.cols],
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() => {
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// 清空魔方
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cubes.value = [];
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if (!props.rows || !props.cols) return;
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// 初始化魔方
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for (let row = 0; row < props.rows; row++) {
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cubes.value[row] = [];
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for (let col = 0; col < props.cols; col++) {
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cubes.value[row]!.push({ x: col, y: row, active: false });
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}
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}
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},
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{ immediate: true },
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);
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// 热区列表
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const hotAreas = ref<Rect[]>([]);
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// 初始化热区
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watch(
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() => props.modelValue,
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() => (hotAreas.value = props.modelValue || []),
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{ immediate: true },
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);
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// 热区起始方块
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const hotAreaBeginCube = ref<Cube>();
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// 是否开启了热区选择模式
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const isHotAreaSelectMode = () => !!hotAreaBeginCube.value;
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/**
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* 处理鼠标点击方块
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*
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* @param currentRow 当前行号
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* @param currentCol 当前列号
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*/
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const handleCubeClick = (currentRow: number, currentCol: number) => {
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const currentCube = cubes.value[currentRow]?.[currentCol];
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if (!currentCube) return;
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// 情况1:进入热区选择模式
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if (!isHotAreaSelectMode()) {
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hotAreaBeginCube.value = currentCube;
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hotAreaBeginCube.value!.active = true;
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return;
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}
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// 情况2:结束热区选择模式
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hotAreas.value.push(createRect(hotAreaBeginCube.value!, currentCube));
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// 结束热区选择模式
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exitHotAreaSelectMode();
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// 创建后就选中热区
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const hotAreaIndex = hotAreas.value.length - 1;
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const hotArea = hotAreas.value[hotAreaIndex];
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if (hotArea) {
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handleHotAreaSelected(hotArea, hotAreaIndex);
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}
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// 发送热区变动通知
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emitUpdateModelValue();
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};
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/**
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* 处理鼠标经过方块
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*
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* @param currentRow 当前行号
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* @param currentCol 当前列号
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*/
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const handleCellHover = (currentRow: number, currentCol: number) => {
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// 当前没有进入热区选择模式
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if (!isHotAreaSelectMode()) return;
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// 当前已选的区域
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const currentCube = cubes.value[currentRow]?.[currentCol];
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if (!currentCube) return;
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const currentSelectedArea = createRect(hotAreaBeginCube.value!, currentCube);
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// 热区不允许重叠
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for (const hotArea of hotAreas.value) {
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// 检查是否重叠
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if (isOverlap(hotArea, currentSelectedArea)) {
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// 结束热区选择模式
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exitHotAreaSelectMode();
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return;
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}
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}
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// 激活选中区域内部的方块
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eachCube((_, __, cube) => {
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cube.active = isContains(currentSelectedArea, cube);
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});
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};
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/**
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* 处理热区删除
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*
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* @param index 热区索引
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*/
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const handleDeleteHotArea = (index: number) => {
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hotAreas.value.splice(index, 1);
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// 结束热区选择模式
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exitHotAreaSelectMode();
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// 发送热区变动通知
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emitUpdateModelValue();
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};
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// 发送热区变动通知
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const emitUpdateModelValue = () => emit('update:modelValue', hotAreas.value);
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// 热区选中
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const selectedHotAreaIndex = ref(0);
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const handleHotAreaSelected = (hotArea: Rect, index: number) => {
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selectedHotAreaIndex.value = index;
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emit('hotAreaSelected', hotArea, index);
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};
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/**
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* 结束热区选择模式
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*/
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function exitHotAreaSelectMode() {
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// 移除方块激活标记
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eachCube((_, __, cube) => {
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if (cube.active) {
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cube.active = false;
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}
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});
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// 清除起点
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hotAreaBeginCube.value = undefined;
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}
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/**
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* 迭代魔方矩阵
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* @param callback 回调
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*/
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const eachCube = (callback: (x: number, y: number, cube: Cube) => void) => {
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for (const [x, row] of cubes.value.entries()) {
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if (!row) continue;
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for (const [y, cube] of row.entries()) {
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if (cube) {
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callback(x, y, cube);
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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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<template>
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<div class="relative">
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<table class="cube-table">
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<!-- 底层:魔方矩阵 -->
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<tbody>
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<tr v-for="(rowCubes, row) in cubes" :key="row">
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<td
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v-for="(cube, col) in rowCubes"
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:key="col"
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class="cube"
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:class="[{ active: cube.active }]"
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:style="{
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width: `${cubeSize}px`,
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height: `${cubeSize}px`,
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}"
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@click="handleCubeClick(row, col)"
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@mouseenter="handleCellHover(row, col)"
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>
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<Icon icon="ep-plus" />
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</td>
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</tr>
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</tbody>
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<!-- 顶层:热区 -->
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<div
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v-for="(hotArea, index) in hotAreas"
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:key="index"
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class="hot-area"
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:style="{
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top: `${cubeSize * hotArea.top}px`,
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left: `${cubeSize * hotArea.left}px`,
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height: `${cubeSize * hotArea.height}px`,
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width: `${cubeSize * hotArea.width}px`,
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}"
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@click="handleHotAreaSelected(hotArea, index)"
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@mouseover="exitHotAreaSelectMode"
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>
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<!-- 右上角热区删除按钮 -->
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<div
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v-if="
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selectedHotAreaIndex === index && hotArea.width && hotArea.height
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"
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class="btn-delete"
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@click="handleDeleteHotArea(index)"
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>
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<IconifyIcon icon="ep:circle-close-filled" />
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</div>
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<span v-if="hotArea.width">{{
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`${hotArea.width}×${hotArea.height}`
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}}</span>
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</div>
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</table>
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</div>
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</template>
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<style lang="scss" scoped>
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.cube-table {
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position: relative;
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border-spacing: 0;
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border-collapse: collapse;
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.cube {
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box-sizing: border-box;
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color: var(--el-text-color-secondary);
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text-align: center;
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2025-08-05 15:32:12 +08:00
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cursor: pointer;
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border: 1px solid var(--el-border-color);
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2025-08-05 15:32:12 +08:00
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&.active {
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background: var(--el-color-primary-light-9);
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}
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}
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.hot-area {
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position: absolute;
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box-sizing: border-box;
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display: flex;
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align-items: center;
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justify-content: center;
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color: var(--el-color-primary);
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cursor: pointer;
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border-spacing: 0;
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border-collapse: collapse;
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background: var(--el-color-primary-light-8);
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border: 1px solid var(--el-color-primary);
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.btn-delete {
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position: absolute;
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top: -8px;
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right: -8px;
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z-index: 1;
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display: flex;
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align-items: center;
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justify-content: center;
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width: 16px;
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height: 16px;
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background-color: #fff;
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border-radius: 50%;
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2025-08-05 15:32:12 +08:00
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}
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}
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}
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</style>
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