calendar.uvue 7.3 KB
Newer Older
Y
yurj26 已提交
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169
<template>
	<view class="root">
		<view class="date">
			<text class="date-text">{{current_month}}</text>
		</view>
		<view ref="draw-header" class="calendar-header"></view>
		<view ref="draw-weeks" class="calendar-week" @touchstart="select"></view>
		<view class="btn-group">
			<button size="mini" @click="preDate">上个月</button>
			<button size="mini" @click="gotoToday">回到今天</button>
			<button size="mini" @click="nextDate">下个月</button>
		</view>
		<view>{{timeData.fullDate}} {{current_day}}</view>
	</view>
</template>
<script>
	import { Calendar, DateType } from './index.uts'

	type CoordsType = {
		x : number;
		y : number;
		width : number;
		height : number;
		data : DateType
	}

	export default {
		data() {
			return {
				weeks: [] as Array<Array<DateType>>,
				$coords: [] as Array<CoordsType>,
				$calendar: new Calendar() as Calendar,
				timeData: {
					fullDate: '',
					year: 0,
					month: 0,
					date: 0,
					day: 0,
					lunar: '',
					disabled: false,
				} as DateType
			}
		},
		computed: {
			// 获取月份
			current_month() : string {
				const nowDate = this.timeData
				const month = nowDate.month
				return month < 10 ? '0' + month : month.toString()
			},
			current_day() : string {
				const time = this.timeData.data
				return time?.IMonthCn + time?.IDayCn
			}
		},
		created() { },
		onReady() {
			this.weeks = this.$calendar.getWeeks()
			this.timeData = this.$calendar.getDateInfo()
			// 绘制日历头部
			this.drawHeader()
			this.drawWeek(this.weeks, '')
		},
		methods: {

			// 触发整个日历的点击事件,需要计算点击位置
			select(event : TouchEvent) {
				const refs = this.$refs['draw-weeks'] as INode
				const rect = refs.getBoundingClientRect();
				const dom_x = rect.left; // 元素左上角相对于视口的 X 坐标
				const dom_y = rect.top; // 元素左上角相对于视口的 Y 坐标
				const touch = event.touches[0];
				const clientX = touch.clientX; // X 坐标
				const clientY = touch.clientY; // Y 坐标
				// 计算点击的相对位置
				const x = clientX - dom_x
				const y = clientY - dom_y

				this.clickGrid(x, y)
			},

			// 点击具体的日历格子
			clickGrid(x : number, y : number) {
				// 小格子数组
				const gridArray = this.$coords

				// 遍历小格子数组,找到最接近点击坐标的小格子
				for (let i = 0; i < gridArray.length; i++) {
					const grid = gridArray[i]
					// 计算小格子理论上的最大值
					const max_x = grid.x + grid.width
					const max_y = grid.y + grid.height

					const is_x_limit = grid.x < x && x < max_x
					const is_y_limit = grid.y < y && y < max_y

					const is_select = is_x_limit && is_y_limit

					if (is_select) {
						const data = grid.data
						this.timeData = this.$calendar.getDateInfo(data.fullDate)
						this.drawWeek(this.weeks, grid.data.fullDate)
					}
				}
			},
			// 切换上个月
			preDate() {
				const fulldate = this.timeData.fullDate
				const time = this.$calendar.getDate(fulldate, -1, 'month')
				this.timeData = this.$calendar.getDateInfo(time.fullDate)

				this.weeks = this.$calendar.getWeeks(time.fullDate)

				// 重新绘制日历
				this.drawWeek(this.weeks, time.fullDate)

			},
			// 切换下个他
			nextDate() {
				const fulldate = this.timeData.fullDate
				const time = this.$calendar.getDate(fulldate, 1, 'month')
				this.timeData = this.$calendar.getDateInfo(time.fullDate)

				this.weeks = this.$calendar.getWeeks(time.fullDate)

				// 重新绘制日历
				this.drawWeek(this.weeks, time.fullDate)
			},
			// 回到今天
			gotoToday() {
				const time = this.$calendar.getDate()
				this.timeData = this.$calendar.getDateInfo(time.fullDate)

				this.weeks = this.$calendar.getWeeks(time.fullDate)

				// 重新绘制日历
				this.drawWeek(this.weeks, time.fullDate)
			},

			// 绘制日历顶部信息
			drawHeader() {
				const refs = this.$refs['draw-header'] as INode
				let ctx = refs.getDrawableContext()
				const date_header_map = ['一', '二', '三', '四', '五', '六', '日']

				const width = refs.getBoundingClientRect().width
				const num = date_header_map.length
				const one_width = width / num

				for (let i = 0; i < num; i++) {
					let box_left = i * one_width + 2
					let box_width = one_width - 4
					let box_height = 26

					// 文本赋值
					const text = date_header_map[i]
					let text_left = box_width / 2 + box_left
					let text_top = box_height / 2 + 6
					ctx.font = '12'
					ctx.textAlign = 'center'
					ctx.fillText(text, text_left, text_top)
					ctx.update()
				}
			},

			// 绘制日历主体
			drawWeek(weeks : Array<Array<DateType>>, time : string) {
				const start_time = Date.now()
				const refs = this.$refs['draw-weeks'] as INode
170 171 172 173
				let ctx = refs.getDrawableContext()
				const dom = refs.getBoundingClientRect()
				const width = dom.width
				const height = dom.height
Y
yurj26 已提交
174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286
				let week_len = weeks.length
				const one_width = width / weeks[0].length
				const one_height = height / week_len

				if (time !== '') {
					this.$coords = []
					ctx.reset()
				}

				for (let week = 0; week < week_len; week++) {

					const week_item = weeks[week]
					for (let day = 0; day < week_item.length; day++) {
						const day_item = week_item[day]
						let day_left = day * one_width + 2
						let day_top = one_height * week + 2
						let day_width = one_width - 4
						let day_height = one_height - 4

						// 文本赋值
						let text = day_item.date.toString()
						let text_left = day * one_width + (one_width / 2)
						let text_top = one_height * week + 25


						ctx.font = '16'
						ctx.textAlign = 'center'

						// 日期是否禁用
						if (day_item.disabled) {
							ctx.fillStyle = '#ccc'
						} else {
							// 是否为今天
							if (day_item.is_today) {
								ctx.fillStyle = 'red'
							} else {
								// 是否为选中
								if (time === day_item.fullDate) {
									ctx.fillStyle = 'blue'
								} else {
									ctx.fillStyle = '#666'
								}
							}

							// 第一次渲染获取数据
							// if (time === '') {
							// 存储坐标组,用于点击事件
							const coords : CoordsType = {
								x: day_left,
								y: day_top,
								width: day_width,
								height: day_height,
								data: day_item
							}
							this.$coords.push(coords)
							// }
						}

						ctx.fillText(text, text_left, text_top)

						text = day_item.lunar
						let lunar_left = day * one_width + (one_width / 2)
						let lunar_top = one_height * week + 42
						ctx.font = '10'
						ctx.textAlign = 'center'
						ctx.fillText(text, lunar_left, lunar_top)

					}
				}

				ctx.update()
				console.log('diff time', Date.now() - start_time);

			}
		}
	}
</script>

<style>
	.root {
		flex: 1;
		position: relative;
		padding: 15px;
		background-color: #fff;
	}

	.calendar-header {
		height: 30px;
		margin-bottom: 10px;
	}

	.date {
		margin-bottom: 10px;
		margin-left: 10px;
	}

	.date-text {
		font-size: 34px;
		font-weight: bold;
	}

	.calendar-week {
		height: 350px;
		margin: 2px 0;
	}

	.btn-group {
		display: flex;
		flex-direction: row;
		justify-content: space-between;
		margin: 20px 0;
	}
</style>