Feature/svg compat

package.json

@@ -44,10 +44,12 @@
     "@codemirror/theme-one-dark": "^6.0.0",
     "@xyflow/svelte": "^1.5.0",
     "codemirror": "^6.0.0",
+    "jspdf": "^4.1.0",
     "katex": "^0.16.0",
     "opentype.js": "^1.3.4",
     "pathfinding": "^0.4.18",
     "plotly.js-dist-min": "^2.35.0",
-    "pyodide": "^0.26.0"
+    "pyodide": "^0.26.0",
+    "svg2pdf.js": "^2.7.0"
   }
 }

src/app.css

@@ -1,3 +1,10 @@
+/* Bundled fonts — no external CDN dependency */
+@font-face { font-family: 'Inter'; font-weight: 400; font-style: normal; font-display: swap; src: url('/fonts/Inter-Regular.woff2') format('woff2'); }
+@font-face { font-family: 'Inter'; font-weight: 500; font-style: normal; font-display: swap; src: url('/fonts/Inter-Medium.woff2') format('woff2'); }
+@font-face { font-family: 'Inter'; font-weight: 600; font-style: normal; font-display: swap; src: url('/fonts/Inter-SemiBold.woff2') format('woff2'); }
+@font-face { font-family: 'JetBrains Mono'; font-weight: 400; font-style: normal; font-display: swap; src: url('/fonts/JetBrainsMono-Regular.woff2') format('woff2'); }
+@font-face { font-family: 'JetBrains Mono'; font-weight: 500; font-style: normal; font-display: swap; src: url('/fonts/JetBrainsMono-Medium.woff2') format('woff2'); }
+
 /* Modern Design System */
 :root {
 	/* ===== SURFACES (2-tier elevation) ===== */

src/lib/components/FlowCanvas.svelte

@@ -1026,6 +1026,7 @@
 		edgesFocusable
 		edgesSelectable
 		zoomOnDoubleClick={false}
+		elevateEdgesOnSelect={false}
 		proOptions={{ hideAttribution: true }}
 	>
 		<FlowUpdater pendingUpdates={pendingNodeUpdates} onUpdatesProcessed={clearPendingUpdates} />

src/lib/components/contextMenuBuilders.ts

@@ -22,7 +22,7 @@ import { generateBlockCodeHeader, generateEventCodeHeader } from '$lib/utils/cod
 import { exportComponent } from '$lib/schema/componentOps';
 import { openImportDialog } from '$lib/schema/fileOps';
 import { hasExportableData, exportRecordingData } from '$lib/utils/csvExport';
-import { exportToSVG } from '$lib/export/svg';
+import { exportToSVG, exportToPDF } from '$lib/export/svg';
 import { downloadSvg } from '$lib/utils/download';
 import { plotSettingsStore, DEFAULT_BLOCK_SETTINGS } from '$lib/stores/plotSettings';
 import { portLabelsStore } from '$lib/stores/portLabels';
@@ -409,12 +409,23 @@ function buildCanvasMenu(
 			icon: 'image',
 			action: async () => {
 				try {
-					const svg = await exportToSVG();
+					const svg = await exportToSVG({ compat: 'inkscape' });
 					downloadSvg(svg, 'pathview-graph.svg');
 				} catch (e) {
 					console.error('SVG export failed:', e);
 				}
 			}
+		},
+		{
+			label: 'Export PDF',
+			icon: 'image',
+			action: async () => {
+				try {
+					await exportToPDF();
+				} catch (e) {
+					console.error('PDF export failed:', e);
+				}
+			}
 		}
 	];
 

src/lib/export/dom2svg/index.d.ts

@@ -6,6 +6,21 @@ interface FontConfig {
 }
 /** Font mapping: family name → URL string, single config, or array of configs for multiple weights/styles */
 type FontMapping = Record<string, string | FontConfig | FontConfig[]>;
+/** SVG compatibility configuration flags */
+interface SvgCompatConfig {
+    useClipPathForOverflow: boolean;
+    stripFilters: boolean;
+    stripBoxShadows: boolean;
+    stripMaskImage: boolean;
+    stripTextShadows: boolean;
+    avoidStyleAttributes: boolean;
+    stripXmlSpace: boolean;
+    stripGroupOpacity: boolean;
+    inlineClipPathTransforms: boolean;
+    flattenNestedSvg: boolean;
+}
+/** SVG compatibility preset */
+type SvgCompat = 'full' | 'inkscape' | SvgCompatConfig;
 /** Options for domToSvg() */
 interface DomToSvgOptions {
     /** Map of font-family → URL or FontConfig for text-to-path conversion */
@@ -26,6 +41,8 @@ interface DomToSvgOptions {
      *  with nested CSS transforms (e.g. SvelteFlow, React Flow) where
      *  the default behaviour would double-apply transforms. */
     flattenTransforms?: boolean;
+    /** SVG compatibility preset or custom config (default: 'full') */
+    compat?: SvgCompat;
 }
 /** Internal render context passed through the tree */
 interface RenderContext {
@@ -37,6 +54,8 @@ interface RenderContext {
     idGenerator: IdGenerator;
     /** Options from the caller */
     options: DomToSvgOptions;
+    /** Resolved SVG compatibility config */
+    compat: SvgCompatConfig;
     /** Font cache (available when textToPath is enabled) */
     fontCache?: FontCache;
     /** Current inherited opacity */
@@ -72,4 +91,4 @@ interface DomToSvgResult {
  */
 declare function domToSvg(element: Element, options?: DomToSvgOptions): Promise<DomToSvgResult>;
 
-export { type DomToSvgOptions, type DomToSvgResult, type FontConfig, type FontMapping, domToSvg };
+export { type DomToSvgOptions, type DomToSvgResult, type FontConfig, type FontMapping, type SvgCompat, type SvgCompatConfig, domToSvg };