{ "$schema": "https://uipkge.dev/schema/registry-item.json", "name": "treemap-chart", "title": "Treemap Chart", "type": "registry:ui", "files": [ { "path": "packages/registry-svelte/components/treemap-chart/TreemapChart.svelte", "content": "\n\n\n\n\n

\n\n", "type": "registry:ui", "target": "~/src/lib/components/ui/treemap-chart/TreemapChart.svelte" }, { "path": "packages/registry-svelte/components/treemap-chart/chart-theme.ts", "content": "// Self-contained chart theme helpers (the Vue twin reads these from the shared\n// `components/ui/charts/useChartTheme.ts`; each Svelte chart ships its own copy\n// so the install unit stays dependency-free apart from `echarts`).\n//\n// The palette is driven by Tailwind v4 CSS variables (`--chart-1..5`,\n// `--muted-foreground`, `--border`, `--popover`, etc.) so dark/light flips\n// happen automatically when the consumer toggles their theme class. Values\n// resolve at runtime via `getComputedStyle`. The component bumps a local\n// `themeKey` whenever `` class/style changes so its derived option\n// re-resolves and the chart re-paints.\n\n// ECharts' canvas renderer does not accept OKLCH in every browser. Assigning\n// one of our Tailwind tokens to `fillStyle` can silently leave the sentinel\n// colour in place, turning a whole chart black. Convert OKLCH ourselves and\n// let the canvas normalize older CSS colour formats.\nlet _hexCanvas: CanvasRenderingContext2D | null = null\n\nexport function toCanvasColor(cssColor: string): string {\n const value = cssColor.trim()\n const match = value.match(\n /^oklch\$\\s*([+-]?(?:\\d+\\.?\\d*|\\.\\d+))(%?)\\s+([+-]?(?:\\d+\\.?\\d*|\\.\\d+))\\s+([+-]?(?:\\d+\\.?\\d*|\\.\\d+))(?:deg)?(?:\\s*\\/\\s*([+-]?(?:\\d+\\.?\\d*|\\.\\d+))(%?))?\\s*\$$/i,\n )\n\n if (match) {\n const lightness = Number(match[1]) / (match[2] === '%' ? 100 : 1)\n const chroma = Number(match[3])\n const hue = (Number(match[4]) * Math.PI) / 180\n const alpha = match[5] == null ? 1 : Number(match[5]) / (match[6] === '%' ? 100 : 1)\n const a = chroma * Math.cos(hue)\n const b = chroma * Math.sin(hue)\n\n const l = Math.pow(lightness + 0.3963377774 * a + 0.2158037573 * b, 3)\n const m = Math.pow(lightness - 0.1055613458 * a - 0.0638541728 * b, 3)\n const s = Math.pow(lightness - 0.0894841775 * a - 1.291485548 * b, 3)\n const linear = [\n 4.0767416621 * l - 3.3077115913 * m + 0.2309699292 * s,\n -1.2684380046 * l + 2.6097574011 * m - 0.3413193965 * s,\n -0.0041960863 * l - 0.7034186147 * m + 1.707614701 * s,\n ]\n const rgb = linear.map((channel) => {\n const encoded = channel <= 0.0031308 ? 12.92 * channel : 1.055 * Math.pow(channel, 1 / 2.4) - 0.055\n return Math.round(Math.min(1, Math.max(0, encoded)) * 255)\n })\n\n return alpha < 1 ? `rgba(${rgb.join(', ')}, ${alpha})` : `rgb(${rgb.join(', ')})`\n }\n\n if (typeof document === 'undefined') return cssColor\n if (!_hexCanvas) {\n _hexCanvas = document.createElement('canvas').getContext('2d')\n }\n if (!_hexCanvas) return cssColor\n _hexCanvas.fillStyle = '#010203'\n _hexCanvas.fillStyle = value\n const normalized = _hexCanvas.fillStyle as string\n return normalized === '#010203' && value.toLowerCase() !== '#010203' ? value : normalized\n}\n\n// Convert any CSS color (hex, rgb, oklch, color()) + alpha 0..1 to a\n// canvas-safe rgba(r,g,b,a). `colorString + '40'` (8-digit hex alpha)\n// only works when `colorString` is `#rrggbb`; once tokens resolve to\n// oklch() post-hydration the gradient stops break and the canvas paint\n// throws every frame. Stay defensive and always return rgba.\nexport function toRgba(cssColor: string, alpha: number): string {\n const normalized = toCanvasColor(cssColor)\n if (normalized.startsWith('#') && normalized.length === 7) {\n const r = parseInt(normalized.slice(1, 3), 16)\n const g = parseInt(normalized.slice(3, 5), 16)\n const b = parseInt(normalized.slice(5, 7), 16)\n return `rgba(${r},${g},${b},${alpha})`\n }\n if (normalized.startsWith('rgba(')) {\n return normalized.replace(/,\\s*[\\d.]+\\s*\\)$/, `,${alpha})`)\n }\n if (normalized.startsWith('rgb(')) {\n return normalized.replace(/^rgb\$/, 'rgba(').replace(/\$$/, `,${alpha})`)\n }\n // Canvas refused to parse this color -- ship the original string and\n // let ECharts complain (better than crashing the paint loop).\n return cssColor\n}\n\nfunction resolveVar(name: string, fallback: string): string {\n if (typeof window === 'undefined') return fallback\n const v = getComputedStyle(document.documentElement).getPropertyValue(name).trim()\n if (!v) return fallback\n return toCanvasColor(v)\n}\n\n// SSR / pre-hydration fallback palette. Hex values picked to roughly\n// match the shadcn Neutral defaults in `tailwind.css` so the first paint\n// doesn't flicker.\nconst CHART_FALLBACK = ['#f59e0b', '#14b8a6', '#3b82f6', '#f97316', '#eab308']\n\nexport function getChartColors(): string[] {\n return Array.from({ length: 5 }, (_, i) => resolveVar(`--chart-${i + 1}`, CHART_FALLBACK[i]!))\n}\n\nexport function getChartTextColor(): string {\n return resolveVar('--muted-foreground', '#888888')\n}\n\nexport function getChartAxisColor(): string {\n return resolveVar('--border', '#e5e5e5')\n}\n\nexport function getChartTooltipBg(): string {\n return resolveVar('--popover', 'rgba(255,255,255,0.96)')\n}\n\nexport function getChartTooltipBorder(): string {\n return resolveVar('--border', '#e5e5e5')\n}\n\nexport function getChartTooltipText(): string {\n return resolveVar('--popover-foreground', '#333333')\n}\n", "type": "registry:ui", "target": "~/src/lib/components/ui/treemap-chart/chart-theme.ts" }, { "path": "packages/registry-svelte/components/treemap-chart/index.ts", "content": "export { default as TreemapChart, type TreemapChartProps, type TreemapNode } from './TreemapChart.svelte'\n", "type": "registry:ui", "target": "~/src/lib/components/ui/treemap-chart/index.ts" } ], "dependencies": [ "echarts" ], "devDependencies": [], "registryDependencies": [], "description": "Treemap wrapper around Apache ECharts. Hierarchical area-by-value visualization with nested and color-by-value variants. Theme-aware via registry tokens.", "categories": [ "chart" ] }