| 1 | <template> |
| 2 | <VChart |
| 3 | ref="chartRef" |
| 4 | class="w-full" |
| 5 | :style="{ height, width: '100%' }" |
| 6 | :autoresize="{ onResize: updatePlotWidth }" |
| 7 | :option="chartOption" |
| 8 | @finished="updatePlotWidth" |
| 9 | @click="onChartClick" |
| 10 | /> |
| 11 | </template> |
| 12 | |
| 13 | <script setup lang="ts"> |
| 14 | import type { BarSeriesOption } from "echarts/charts" |
| 15 | import type { GridComponentOption, TitleComponentOption, TooltipComponentOption } from "echarts/components" |
| 16 | import type { ComposeOption } from "echarts/core" |
| 17 | import { BarChart } from "echarts/charts" |
| 18 | import { GridComponent, TitleComponent, TooltipComponent } from "echarts/components" |
| 19 | import { use } from "echarts/core" |
| 20 | import { CanvasRenderer } from "echarts/renderers" |
| 21 | import { computed, ref } from "vue" |
| 22 | import VChart from "vue-echarts" |
| 23 | import { useSettingsStore } from "@/stores/settings" |
| 24 | import { useThemeStore } from "@/stores/theme" |
| 25 | import dayjs from "@/utils/dayjs" |
| 26 | import { |
| 27 | buildChartTooltipGlassBase, |
| 28 | CHART_COLORS, |
| 29 | CHART_GRID_CONTAIN_AXIS_LABELS, |
| 30 | chartTooltipThemeFromStyle, |
| 31 | formatChartTooltipAxisFirst |
| 32 | } from "." |
| 33 | |
| 34 | const props = withDefaults( |
| 35 | defineProps<{ |
| 36 | labels?: string[] |
| 37 | data?: number[] |
| 38 | height?: string |
| 39 | monochrome?: boolean |
| 40 | labelsDatetime?: boolean |
| 41 | }>(), |
| 42 | { |
| 43 | labels: () => [], |
| 44 | data: () => [], |
| 45 | height: "100%" |
| 46 | } |
| 47 | ) |
| 48 | |
| 49 | const emit = defineEmits<{ |
| 50 | itemClick: [item: { name: string }] |
| 51 | }>() |
| 52 | |
| 53 | use([CanvasRenderer, BarChart, TitleComponent, TooltipComponent, GridComponent]) |
| 54 | |
| 55 | type ChartOption = ComposeOption<TitleComponentOption | TooltipComponentOption | GridComponentOption | BarSeriesOption> |
| 56 | |
| 57 | const GRID_HORIZONTAL_PADDING = 48 |
| 58 | |
| 59 | const themeStore = useThemeStore() |
| 60 | const dFormats = useSettingsStore().dateFormat |
| 61 | const chartRef = ref<InstanceType<typeof VChart> | null>(null) |
| 62 | const plotWidth = ref(0) |
| 63 | |
| 64 | function updatePlotWidth() { |
| 65 | const chartWidth = chartRef.value?.getWidth() ?? 0 |
| 66 | plotWidth.value = Math.max(0, chartWidth - GRID_HORIZONTAL_PADDING) |
| 67 | } |
| 68 | |
| 69 | const categoryLabels = computed(() => |
| 70 | (props.labels || []).map(label => |
| 71 | props.labelsDatetime ? `${dayjs(label).format(dFormats.date)}\n${dayjs(label).format(dFormats.time)}` : label |
| 72 | ) |
| 73 | ) |
| 74 | |
| 75 | const showXAxisLabels = computed(() => plotWidth.value === 0 || plotWidth.value >= 500) |
| 76 | |
| 77 | const chartOption = computed((): ChartOption => { |
| 78 | const style = themeStore.style |
| 79 | const fg = style["fg-default-color"] |
| 80 | const bc = style["border-color"] |
| 81 | const ff = style["font-family"] |
| 82 | const palette = props.monochrome ? [CHART_COLORS[0]] : CHART_COLORS |
| 83 | const hasData = props.labels?.length > 0 |
| 84 | |
| 85 | if (!hasData) { |
| 86 | return { |
| 87 | backgroundColor: "transparent", |
| 88 | title: { |
| 89 | text: "No data", |
| 90 | left: "center", |
| 91 | top: "center", |
| 92 | textStyle: { color: fg, fontSize: 16, fontFamily: ff } |
| 93 | } |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | const barData = (props.labels || []).map((_, i) => ({ |
| 98 | value: Number(props.data[i] ?? 0), |
| 99 | itemStyle: { |
| 100 | color: palette[i % palette.length], |
| 101 | borderRadius: [4, 4, 0, 0] |
| 102 | } |
| 103 | })) |
| 104 | |
| 105 | return { |
| 106 | backgroundColor: "transparent", |
| 107 | grid: { |
| 108 | left: 8, |
| 109 | right: 8, |
| 110 | top: 8, |
| 111 | bottom: showXAxisLabels.value ? 56 : 16, |
| 112 | ...CHART_GRID_CONTAIN_AXIS_LABELS |
| 113 | }, |
| 114 | tooltip: { |
| 115 | ...buildChartTooltipGlassBase(chartTooltipThemeFromStyle(style), { trigger: "axis" }), |
| 116 | axisPointer: { type: "shadow" }, |
| 117 | formatter: params => |
| 118 | formatChartTooltipAxisFirst(params, { |
| 119 | resolveColor: p => { |
| 120 | const idx = p.dataIndex ?? 0 |
| 121 | return palette[idx % palette.length] |
| 122 | } |
| 123 | }) |
| 124 | }, |
| 125 | xAxis: { |
| 126 | type: "category", |
| 127 | data: categoryLabels.value, |
| 128 | axisLine: { show: false }, |
| 129 | axisTick: { show: false }, |
| 130 | axisLabel: { |
| 131 | show: showXAxisLabels.value, |
| 132 | color: fg, |
| 133 | fontSize: 11, |
| 134 | interval: "auto", |
| 135 | hideOverlap: true |
| 136 | } |
| 137 | }, |
| 138 | yAxis: { |
| 139 | type: "value", |
| 140 | axisLine: { show: false }, |
| 141 | axisTick: { show: false }, |
| 142 | axisLabel: { color: fg, fontSize: 10 }, |
| 143 | splitLine: { lineStyle: { color: bc } } |
| 144 | }, |
| 145 | series: [ |
| 146 | { |
| 147 | name: "value", |
| 148 | type: "bar", |
| 149 | barWidth: "60%", |
| 150 | data: barData, |
| 151 | emphasis: { focus: "series" } |
| 152 | } |
| 153 | ] |
| 154 | } |
| 155 | }) |
| 156 | |
| 157 | function onChartClick(params: unknown) { |
| 158 | const p = params as { componentType?: string; dataIndex?: number } |
| 159 | if (p.componentType !== "series" || p.dataIndex == null) return |
| 160 | const name = (props.labels || [])[p.dataIndex] |
| 161 | if (name) emit("itemClick", { name }) |
| 162 | } |
| 163 | </script> |