优化:周视图月开始分隔线实现使用canvas替代dom
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@@ -1,5 +1,5 @@
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<script setup lang="ts">
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import { ref, watch, nextTick, onMounted } from 'vue'
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import { ref, watch, nextTick, onMounted, computed } from 'vue'
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import type { Task } from '../models/classes/Task'
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import { getPredecessorIds } from '../utils/predecessorUtils'
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@@ -11,6 +11,12 @@ interface TaskBarPosition {
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height: number
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}
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// 定义月份分隔线位置类型
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interface VerticalLine {
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left: number
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label?: string
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}
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// 定义 Props
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interface Props {
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tasks: Task[]
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@@ -20,13 +26,24 @@ interface Props {
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highlightedTaskId: number | null
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highlightedTaskIds: Set<number>
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hoveredTaskId: number | null
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// 月份分隔线配置
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verticalLines?: VerticalLine[]
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showVerticalLines?: boolean
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}
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const props = defineProps<Props>()
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const props = withDefaults(defineProps<Props>(), {
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verticalLines: () => [],
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showVerticalLines: true,
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})
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// Canvas 引用
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const canvasRef = ref<HTMLCanvasElement | null>(null)
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// 当前主题(用于分隔线颜色)
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const isDarkTheme = computed(() => {
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return document.documentElement.getAttribute('data-theme') === 'dark'
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})
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/**
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* 绘制关系线到 Canvas
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* 性能优势:相比 SVG 提升 18 倍渲染性能
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@@ -52,6 +69,26 @@ const drawLinks = () => {
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// 清空画布
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ctx.clearRect(0, 0, rect.width, rect.height)
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// 绘制月份分隔线(在关系线之前,作为背景)
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if (props.showVerticalLines && props.verticalLines && props.verticalLines.length > 0) {
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ctx.save()
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// 使用与旗帜一致的主题色:浅色模式 #409eff,暗色模式 #66b1ff
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const lineColor = isDarkTheme.value ? '#66b1ff' : '#409eff'
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ctx.strokeStyle = lineColor
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ctx.lineWidth = 1
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// 绘制每条垂直线
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for (const line of props.verticalLines) {
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ctx.beginPath()
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ctx.moveTo(line.left, 0)
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ctx.lineTo(line.left, rect.height)
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ctx.stroke()
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}
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ctx.restore()
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}
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// 获取当前渲染的任务ID集合
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const currentTaskIds = new Set<number>()
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for (const task of props.tasks) {
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@@ -3283,6 +3283,8 @@ const handleAddSuccessor = (task: Task) => {
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:highlighted-task-id="highlightedTaskId"
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:highlighted-task-ids="highlightedTaskIds"
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:hovered-task-id="hoveredTaskId"
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:vertical-lines="monthFirstVerticalLines"
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:show-vertical-lines="currentTimeScale === TimelineScale.WEEK"
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/>
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<!-- 年度视图今日标记线 -->
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@@ -3295,17 +3297,6 @@ const handleAddSuccessor = (task: Task) => {
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}"
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></div>
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<!-- 月份1号竖直线(周视图) - 优化:使用预计算的位置数组 -->
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<div
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v-for="(line, index) in monthFirstVerticalLines"
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:key="`vline-${index}`"
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class="month-first-vertical-line"
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:style="{
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left: `${line.left}px`,
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height: `${contentHeight}px`,
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}"
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></div>
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<!-- 背景列 -->
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<div class="day-columns" :style="{ height: `${contentHeight}px` }">
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<!-- 小时视图背景列 -->
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@@ -3874,22 +3865,6 @@ const handleAddSuccessor = (task: Task) => {
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box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
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}
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/* 月份1号竖直线样式 */
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.month-first-vertical-line {
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position: absolute;
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top: 0;
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width: 1px;
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background-color: var(--gantt-primary, #409eff);
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opacity: 0.6;
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z-index: 5;
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pointer-events: none;
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}
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/* 暗色主题下的竖直线 */
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:global(html[data-theme='dark']) .month-first-vertical-line {
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background-color: var(--gantt-primary-light, #66b1ff);
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}
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/* 周视图背景列样式 */
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.month-week-columns {
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display: flex;
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