| 提交 | 用户 | 时间 | ||
| 820397 | 1 | <template> |
| H | 2 | <div class="relative"> |
| 3 | <table class="cube-table"> | |
| 4 | <!-- 底层：魔方矩阵 --> | |
| 5 | <tbody> | |
| 6 | <tr v-for="(rowCubes, row) in cubes" :key="row"> | |
| 7 | <td | |
| 8 | v-for="(cube, col) in rowCubes" | |
| 9 | :key="col" | |
| 10 | :class="['cube', { active: cube.active }]" | |
| 11 | :style="{ | |
| 12 | width: `${cubeSize}px`, | |
| 13 | height: `${cubeSize}px` | |
| 14 | }" | |
| 15 | @click="handleCubeClick(row, col)" | |
| 16 | @mouseenter="handleCellHover(row, col)" | |
| 17 | > | |
| 18 | <Icon icon="ep-plus" /> | |
| 19 | </td> | |
| 20 | </tr> | |
| 21 | </tbody> | |
| 22 | <!-- 顶层：热区 --> | |
| 23 | <div | |
| 24 | v-for="(hotArea, index) in hotAreas" | |
| 25 | :key="index" | |
| 26 | class="hot-area" | |
| 27 | :style="{ | |
| 28 | top: `${cubeSize * hotArea.top}px`, | |
| 29 | left: `${cubeSize * hotArea.left}px`, | |
| 30 | height: `${cubeSize * hotArea.height}px`, | |
| 31 | width: `${cubeSize * hotArea.width}px` | |
| 32 | }" | |
| 33 | @click="handleHotAreaSelected(hotArea, index)" | |
| 34 | @mouseover="exitHotAreaSelectMode" | |
| 35 | > | |
| 36 | <!-- 右上角热区删除按钮 --> | |
| 37 | <div | |
| 38 | v-if="selectedHotAreaIndex === index" | |
| 39 | class="btn-delete" | |
| 40 | @click="handleDeleteHotArea(index)" | |
| 41 | > | |
| 42 | <Icon icon="ep:circle-close-filled" /> | |
| 43 | </div> | |
| 44 | {{ `${hotArea.width}×${hotArea.height}` }} | |
| 45 | </div> | |
| 46 | </table> | |
| 47 | </div> | |
| 48 | </template> | |
| 49 | <script lang="ts" setup> | |
| 50 | import { propTypes } from '@/utils/propTypes' | |
| 51 | import * as vueTypes from 'vue-types' | |
| 52 | import { Point, Rect, isContains, isOverlap, createRect } from './util' | |
| 53 | ||
| 54 | // 魔方编辑器 | |
| 55 | // 有两部分组成： | |
| 56 | // 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 | |
| 57 | // 操作方法： | |
| 58 | // 1.1 点击其中一个方块就会进入热区选择模式 | |
| 59 | // 1.2 再次点击另外一个方块时，结束热区选择模式 | |
| 60 | // 1.3 在两个方块中间的区域创建热区 | |
| 61 | // 如果两次点击的都是同一方块，就只创建一个格子的热区 | |
| 62 | // 2. 热区：位于顶层，采用绝对定位，覆盖在魔方矩阵上面。 | |
| 63 | defineOptions({ name: 'MagicCubeEditor' }) | |
| 64 | ||
| 65 | /** | |
| 66 | * 方块 | |
| 67 | * @property active 是否激活 | |
| 68 | */ | |
| 69 | type Cube = Point & { active: boolean } | |
| 70 | ||
| 71 | // 定义属性 | |
| 72 | const props = defineProps({ | |
| 73 | // 热区列表 | |
| 74 | modelValue: vueTypes.array<any>().isRequired, | |
| 75 | // 行数，默认 4 行 | |
| 76 | rows: propTypes.number.def(4), | |
| 77 | // 列数，默认 4 列 | |
| 78 | cols: propTypes.number.def(4), | |
| 79 | // 方块大小，单位px，默认75px | |
| 80 | cubeSize: propTypes.number.def(75) | |
| 81 | }) | |
| 82 | ||
| 83 | // 魔方矩阵：所有的方块 | |
| 84 | const cubes = ref<Cube[][]>([]) | |
| 85 | // 监听行数、列数变化 | |
| 86 | watch( | |
| 87 | () => [props.rows, props.cols], | |
| 88 | () => { | |
| 89 | // 清空魔方 | |
| 90 | cubes.value = [] | |
| 91 | if (!props.rows || !props.cols) return | |
| 92 | ||
| 93 | // 初始化魔方 | |
| 94 | for (let row = 0; row < props.rows; row++) { | |
| 95 | cubes.value[row] = [] | |
| 96 | for (let col = 0; col < props.cols; col++) { | |
| 97 | cubes.value[row].push({ x: col, y: row, active: false }) | |
| 98 | } | |
| 99 | } | |
| 100 | }, | |
| 101 | { immediate: true } | |
| 102 | ) | |
| 103 | ||
| 104 | // 热区列表 | |
| 105 | const hotAreas = ref<Rect[]>([]) | |
| 106 | // 初始化热区 | |
| 107 | watch( | |
| 108 | () => props.modelValue, | |
| 109 | () => (hotAreas.value = props.modelValue || []), | |
| 110 | { immediate: true } | |
| 111 | ) | |
| 112 | ||
| 113 | // 热区起始方块 | |
| 114 | const hotAreaBeginCube = ref<Cube>() | |
| 115 | // 是否开启了热区选择模式 | |
| 116 | const isHotAreaSelectMode = () => !!hotAreaBeginCube.value | |
| 117 | /** | |
| 118 | * 处理鼠标点击方块 | |
| 119 | * | |
| 120 | * @param currentRow 当前行号 | |
| 121 | * @param currentCol 当前列号 | |
| 122 | */ | |
| 123 | const handleCubeClick = (currentRow: number, currentCol: number) => { | |
| 124 | const currentCube = cubes.value[currentRow][currentCol] | |
| 125 | // 情况1：进入热区选择模式 | |
| 126 | if (!isHotAreaSelectMode()) { | |
| 127 | hotAreaBeginCube.value = currentCube | |
| 128 | hotAreaBeginCube.value.active = true | |
| 129 | return | |
| 130 | } | |
| 131 | ||
| 132 | // 情况2：结束热区选择模式 | |
| 133 | hotAreas.value.push(createRect(hotAreaBeginCube.value!, currentCube)) | |
| 134 | // 结束热区选择模式 | |
| 135 | exitHotAreaSelectMode() | |
| 136 | // 创建后就选中热区 | |
| 137 | let hotAreaIndex = hotAreas.value.length - 1 | |
| 138 | handleHotAreaSelected(hotAreas.value[hotAreaIndex], hotAreaIndex) | |
| 139 | // 发送热区变动通知 | |
| 140 | emitUpdateModelValue() | |
| 141 | } | |
| 142 | /** | |
| 143 | * 处理鼠标经过方块 | |
| 144 | * | |
| 145 | * @param currentRow 当前行号 | |
| 146 | * @param currentCol 当前列号 | |
| 147 | */ | |
| 148 | const handleCellHover = (currentRow: number, currentCol: number) => { | |
| 149 | // 当前没有进入热区选择模式 | |
| 150 | if (!isHotAreaSelectMode()) return | |
| 151 | ||
| 152 | // 当前已选的区域 | |
| 153 | const currentSelectedArea = createRect( | |
| 154 | hotAreaBeginCube.value!, | |
| 155 | cubes.value[currentRow][currentCol] | |
| 156 | ) | |
| 157 | // 热区不允许重叠 | |
| 158 | for (const hotArea of hotAreas.value) { | |
| 159 | // 检查是否重叠 | |
| 160 | if (isOverlap(hotArea, currentSelectedArea)) { | |
| 161 | // 结束热区选择模式 | |
| 162 | exitHotAreaSelectMode() | |
| 163 | ||
| 164 | return | |
| 165 | } | |
| 166 | } | |
| 167 | ||
| 168 | // 激活选中区域内部的方块 | |
| 169 | eachCube((_, __, cube) => { | |
| 170 | cube.active = isContains(currentSelectedArea, cube) | |
| 171 | }) | |
| 172 | } | |
| 173 | /** | |
| 174 | * 处理热区删除 | |
| 175 | * | |
| 176 | * @param index 热区索引 | |
| 177 | */ | |
| 178 | const handleDeleteHotArea = (index: number) => { | |
| 179 | hotAreas.value.splice(index, 1) | |
| 180 | // 结束热区选择模式 | |
| 181 | exitHotAreaSelectMode() | |
| 182 | // 发送热区变动通知 | |
| 183 | emitUpdateModelValue() | |
| 184 | } | |
| 185 | ||
| 186 | // 发送模型更新 | |
| 187 | const emit = defineEmits(['update:modelValue', 'hotAreaSelected']) | |
| 188 | // 发送热区变动通知 | |
| 189 | const emitUpdateModelValue = () => emit('update:modelValue', hotAreas) | |
| 190 | ||
| 191 | // 热区选中 | |
| 192 | const selectedHotAreaIndex = ref(0) | |
| 193 | const handleHotAreaSelected = (hotArea: Rect, index: number) => { | |
| 194 | selectedHotAreaIndex.value = index | |
| 195 | emit('hotAreaSelected', hotArea, index) | |
| 196 | } | |
| 197 | ||
| 198 | /** | |
| 199 | * 结束热区选择模式 | |
| 200 | */ | |
| 201 | function exitHotAreaSelectMode() { | |
| 202 | // 移除方块激活标记 | |
| 203 | eachCube((_, __, cube) => { | |
| 204 | if (cube.active) { | |
| 205 | cube.active = false | |
| 206 | } | |
| 207 | }) | |
| 208 | ||
| 209 | // 清除起点 | |
| 210 | hotAreaBeginCube.value = undefined | |
| 211 | } | |
| 212 | ||
| 213 | /** | |
| 214 | * 迭代魔方矩阵 | |
| 215 | * @param callback 回调 | |
| 216 | */ | |
| 217 | const eachCube = (callback: (x: number, y: number, cube: Cube) => void) => { | |
| 218 | for (let x = 0; x < cubes.value.length; x++) { | |
| 219 | for (let y = 0; y < cubes.value[x].length; y++) { | |
| 220 | callback(x, y, cubes.value[x][y]) | |
| 221 | } | |
| 222 | } | |
| 223 | } | |
| 224 | </script> | |
| 225 | <style lang="scss" scoped> | |
| 226 | .cube-table { | |
| 227 | position: relative; | |
| 228 | border-spacing: 0; | |
| 229 | border-collapse: collapse; | |
| 230 | ||
| 231 | .cube { | |
| 232 | border: 1px solid var(--el-border-color); | |
| 233 | text-align: center; | |
| 234 | color: var(--el-text-color-secondary); | |
| 235 | cursor: pointer; | |
| 236 | box-sizing: border-box; | |
| 237 | &.active { | |
| 238 | background: var(--el-color-primary-light-9); | |
| 239 | } | |
| 240 | } | |
| 241 | ||
| 242 | .hot-area { | |
| 243 | position: absolute; | |
| 244 | display: flex; | |
| 245 | align-items: center; | |
| 246 | justify-content: center; | |
| 247 | border: 1px solid var(--el-color-primary); | |
| 248 | background: var(--el-color-primary-light-8); | |
| 249 | color: var(--el-color-primary); | |
| 250 | box-sizing: border-box; | |
| 251 | border-spacing: 0; | |
| 252 | border-collapse: collapse; | |
| 253 | cursor: pointer; | |
| 254 | ||
| 255 | .btn-delete { | |
| 256 | z-index: 1; | |
| 257 | position: absolute; | |
| 258 | top: -8px; | |
| 259 | right: -8px; | |
| 260 | height: 16px; | |
| 261 | width: 16px; | |
| 262 | display: flex; | |
| 263 | align-items: center; | |
| 264 | justify-content: center; | |
| 265 | border-radius: 50%; | |
| 266 | background-color: #fff; | |
| 267 | } | |
| 268 | } | |
| 269 | } | |
| 270 | </style> | |
