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- {"version":3,"file":"VTrendline.mjs","names":["computed","nextTick","ref","watch","makeLineProps","genPath","_genPath","genericComponent","getPropertyFromItem","getUid","propsFactory","useRender","makeVTrendlineProps","fill","Boolean","VTrendline","name","props","setup","_ref","slots","uid","id","autoDrawDuration","Number","lastLength","path","genPoints","values","boundary","minX","maxX","minY","maxY","totalValues","length","maxValue","max","Math","minValue","min","gridX","gridY","map","value","index","x","y","hasLabels","showLabels","labels","label","lineWidth","parseFloat","totalWidth","width","padding","parseInt","height","items","modelValue","item","itemValue","parsedLabels","points","len","i","push","String","autoDraw","pathRef","getTotalLength","style","strokeDasharray","strokeDashoffset","getBoundingClientRect","transition","autoDrawEasing","transformOrigin","transform","immediate","smooth","gradientData","gradient","slice","reverse","_createVNode","gradientDirection","color","textAnchor","dominantBaseline","labelSize"],"sources":["../../../src/components/VSparkline/VTrendline.tsx"],"sourcesContent":["// Utilities\nimport { computed, nextTick, ref, watch } from 'vue'\nimport { makeLineProps } from './util/line'\nimport { genPath as _genPath } from './util/path'\nimport { genericComponent, getPropertyFromItem, getUid, propsFactory, useRender } from '@/util'\n\n// Types\nexport type VTrendlineSlots = {\n default: void\n label: { index: number, value: string }\n}\n\nexport type SparklineItem = number | { value: number }\n\nexport type SparklineText = {\n x: number\n value: string\n}\n\nexport interface Boundary {\n minX: number\n minY: number\n maxX: number\n maxY: number\n}\n\nexport interface Point {\n x: number\n y: number\n value: number\n}\n\nexport const makeVTrendlineProps = propsFactory({\n fill: Boolean,\n\n ...makeLineProps(),\n}, 'VTrendline')\n\nexport const VTrendline = genericComponent<VTrendlineSlots>()({\n name: 'VTrendline',\n\n props: makeVTrendlineProps(),\n\n setup (props, { slots }) {\n const uid = getUid()\n const id = computed(() => props.id || `trendline-${uid}`)\n const autoDrawDuration = computed(() => Number(props.autoDrawDuration) || (props.fill ? 500 : 2000))\n\n const lastLength = ref(0)\n const path = ref<SVGPathElement | null>(null)\n\n function genPoints (\n values: number[],\n boundary: Boundary\n ): Point[] {\n const { minX, maxX, minY, maxY } = boundary\n const totalValues = values.length\n const maxValue = props.max != null ? Number(props.max) : Math.max(...values)\n const minValue = props.min != null ? Number(props.min) : Math.min(...values)\n\n const gridX = (maxX - minX) / (totalValues - 1)\n const gridY = (maxY - minY) / ((maxValue - minValue) || 1)\n\n return values.map((value, index) => {\n return {\n x: minX + index * gridX,\n y: maxY - (value - minValue) * gridY,\n value,\n }\n })\n }\n const hasLabels = computed(() => {\n return Boolean(\n props.showLabels ||\n props.labels.length > 0 ||\n !!slots?.label\n )\n })\n const lineWidth = computed(() => {\n return parseFloat(props.lineWidth) || 4\n })\n const totalWidth = computed(() => Number(props.width))\n\n const boundary = computed<Boundary>(() => {\n const padding = Number(props.padding)\n\n return {\n minX: padding,\n maxX: totalWidth.value - padding,\n minY: padding,\n maxY: parseInt(props.height, 10) - padding,\n }\n })\n const items = computed(() => props.modelValue.map(item => getPropertyFromItem(item, props.itemValue, item)))\n const parsedLabels = computed(() => {\n const labels = []\n const points = genPoints(items.value, boundary.value)\n const len = points.length\n\n for (let i = 0; labels.length < len; i++) {\n const item = points[i]\n let value = props.labels[i]\n\n if (!value) {\n value = typeof item === 'object'\n ? item.value\n : item\n }\n\n labels.push({\n x: item.x,\n value: String(value),\n })\n }\n\n return labels\n })\n\n watch(() => props.modelValue, async () => {\n await nextTick()\n\n if (!props.autoDraw || !path.value) return\n\n const pathRef = path.value\n const length = pathRef.getTotalLength()\n\n if (!props.fill) {\n // Initial setup to \"hide\" the line by using the stroke dash array\n pathRef.style.strokeDasharray = `${length}`\n pathRef.style.strokeDashoffset = `${length}`\n\n // Force reflow to ensure the transition starts from this state\n pathRef.getBoundingClientRect()\n\n // Animate the stroke dash offset to \"draw\" the line\n pathRef.style.transition = `stroke-dashoffset ${autoDrawDuration.value}ms ${props.autoDrawEasing}`\n pathRef.style.strokeDashoffset = '0'\n } else {\n // Your existing logic for filled paths remains the same\n pathRef.style.transformOrigin = 'bottom center'\n pathRef.style.transition = 'none'\n pathRef.style.transform = `scaleY(0)`\n pathRef.getBoundingClientRect()\n pathRef.style.transition = `transform ${autoDrawDuration.value}ms ${props.autoDrawEasing}`\n pathRef.style.transform = `scaleY(1)`\n }\n\n lastLength.value = length\n }, { immediate: true })\n\n function genPath (fill: boolean) {\n return _genPath(\n genPoints(items.value, boundary.value),\n props.smooth ? 8 : Number(props.smooth),\n fill,\n parseInt(props.height, 10)\n )\n }\n\n useRender(() => {\n const gradientData = !props.gradient.slice().length ? [''] : props.gradient.slice().reverse()\n\n return (\n <svg\n display=\"block\"\n stroke-width={ parseFloat(props.lineWidth) ?? 4 }\n >\n <defs>\n <linearGradient\n id={ id.value }\n gradientUnits=\"userSpaceOnUse\"\n x1={ props.gradientDirection === 'left' ? '100%' : '0' }\n y1={ props.gradientDirection === 'top' ? '100%' : '0' }\n x2={ props.gradientDirection === 'right' ? '100%' : '0' }\n y2={ props.gradientDirection === 'bottom' ? '100%' : '0' }\n >\n {\n gradientData.map((color, index) => (\n <stop offset={ index / (Math.max(gradientData.length - 1, 1)) } stop-color={ color || 'currentColor' } />\n ))\n }\n </linearGradient>\n </defs>\n\n { hasLabels.value && (\n <g\n key=\"labels\"\n style={{\n textAnchor: 'middle',\n dominantBaseline: 'mathematical',\n fill: 'currentColor',\n }}\n >\n {\n parsedLabels.value.map((item, i) => (\n <text\n x={ item.x + (lineWidth.value / 2) + lineWidth.value / 2 }\n y={ (parseInt(props.height, 10) - 4) + (parseInt(props.labelSize, 10) || 7 * 0.75) }\n font-size={ Number(props.labelSize) || 7 }\n >\n { slots.label?.({ index: i, value: item.value }) ?? item.value }\n </text>\n ))\n }\n </g>\n )}\n\n <path\n ref={ path }\n d={ genPath(props.fill) }\n fill={ props.fill ? `url(#${id.value})` : 'none' }\n stroke={ props.fill ? 'none' : `url(#${id.value})` }\n />\n\n { props.fill && (\n <path\n d={ genPath(false) }\n fill=\"none\"\n stroke={ props.color ?? props.gradient?.[0] }\n />\n )}\n </svg>\n )\n })\n },\n})\n\nexport type VTrendline = InstanceType<typeof 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