Press n or j to go to the next uncovered block, b, p or k for the previous block.
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from './data/propositionGraph' import type { NodeStatus, LayoutEdge } from './data/propositionGraph' // --------------------------------------------------------------------------- // Colors and sizing // --------------------------------------------------------------------------- const NODE_W = 130 const NODE_H = 48 // layout computation height (matches pre-computed layout) const RENDER_H = 120 // rendered height (room for diagram + text) const Y_SCALE = 1.5 // stretch Y to add vertical breathing room between taller nodes const NODE_RX = 8 const ICON_SIZE = 44 // geometric thumbnail area const PREVIEW_THUMB_W = 100 // real construction preview width (wider to match canvas aspect ratio) const PREVIEW_THUMB_H = 56 // real construction preview height const STATUS_STYLES: Record< NodeStatus, { fill: string stroke: string textColor: string strokeDash?: string opacity: number } > = { completed: { fill: 'rgba(16, 185, 129, 0.12)', stroke: '#10b981', textColor: '#065f46', opacity: 1, }, available: { fill: 'rgba(59, 130, 246, 0.08)', stroke: '#3b82f6', textColor: '#1e40af', opacity: 1, }, locked: { fill: 'rgba(156, 163, 175, 0.08)', stroke: '#9ca3af', textColor: '#6b7280', opacity: 0.7, }, 'coming-soon': { fill: 'rgba(156, 163, 175, 0.04)', stroke: '#d1d5db', textColor: '#9ca3af', strokeDash: '4 3', opacity: 1, }, } // --------------------------------------------------------------------------- // Geometric thumbnails per proposition / thematic block // --------------------------------------------------------------------------- import { usePropPreviews } from './render/usePropPreviews' import { PropThumbnail } from './render/PropThumbnailSvg' import { ToyDebugPanel, DebugSlider } from '../ToyDebugPanel' import { useVisualDebugSafe } from '@/contexts/VisualDebugContext' // --------------------------------------------------------------------------- // Edge helpers — simplify, trim to node borders, smooth Catmull-Rom spline // --------------------------------------------------------------------------- type Pt = { x: number; y: number } /** * Remove near-collinear intermediate points (perpendicular distance < epsilon). * Keeps first and last points unconditionally. */ function simplifyPoints(pts: Pt[], epsilon: number): Pt[] { if (pts.length <= 2) return pts const result = [pts[0]] for (let i = 1; i < pts.length - 1; i++) { const prev = result[result.length - 1] const curr = pts[i] const next = pts[i + 1] const dx = next.x - prev.x const dy = next.y - prev.y const len = Math.sqrt(dx * dx + dy * dy) if (len === 0) continue const dist = Math.abs((curr.x - prev.x) * dy - (curr.y - prev.y) * dx) / len if (dist > epsilon) { result.push(curr) } } result.push(pts[pts.length - 1]) return result } /** * Find where a ray from a rect's center toward an external point * intersects the rect border. Handles all 4 sides. */ function rectBorderPoint(cx: number, cy: number, w: number, h: number, px: number, py: number): Pt { const dx = px - cx const dy = py - cy if (dx === 0 && dy === 0) return { x: cx, y: cy + h / 2 } const halfW = w / 2 const halfH = h / 2 let t = Infinity // Side intersections (left/right) if (dx !== 0) { const tSide = (dx > 0 ? halfW : -halfW) / dx if (tSide > 0 && Math.abs(dy * tSide) <= halfH) t = Math.min(t, tSide) } // Top/bottom intersections if (dy !== 0) { const tVert = (dy > 0 ? halfH : -halfH) / dy if (tVert > 0 && Math.abs(dx * tVert) <= halfW) t = Math.min(t, tVert) } return { x: cx + dx * t, y: cy + dy * t } } /** * Trim edge endpoints to node borders using ray-rect intersection. * Handles edges exiting/entering from any side of the node. */ function trimToBorders(pts: Pt[], srcX: number, srcY: number, tgtX: number, tgtY: number): Pt[] { if (pts.length < 2) return pts const result = pts.map((p) => ({ ...p })) // Trim start → source border (ray from center toward next point) result[0] = rectBorderPoint(srcX, srcY, NODE_W, RENDER_H, result[1].x, result[1].y) // Trim end → target border (ray from center toward prev point) const last = result.length - 1 result[last] = rectBorderPoint( tgtX, tgtY, NODE_W, RENDER_H, result[last - 1].x, result[last - 1].y ) return result } /** * Convert points to SVG path using Catmull-Rom → cubic bezier. */ function pointsToPath(pts: Pt[]): string { if (pts.length === 0) return '' if (pts.length === 1) return `M ${pts[0].x} ${pts[0].y}` if (pts.length === 2) { return `M ${pts[0].x} ${pts[0].y} L ${pts[1].x} ${pts[1].y}` } let d = `M ${pts[0].x} ${pts[0].y}` for (let i = 0; i < pts.length - 1; i++) { const p0 = pts[i - 1] ?? pts[0] const p1 = pts[i] const p2 = pts[i + 1] const p3 = pts[i + 2] ?? pts[pts.length - 1] const cp1x = p1.x + (p2.x - p0.x) / 6 const cp1y = p1.y + (p2.y - p0.y) / 6 const cp2x = p2.x - (p3.x - p1.x) / 6 const cp2y = p2.y - (p3.y - p1.y) / 6 d += ` C ${cp1x} ${cp1y}, ${cp2x} ${cp2y}, ${p2.x} ${p2.y}` } return d } // --------------------------------------------------------------------------- // Component // --------------------------------------------------------------------------- interface EuclidMapProps { completed: Set<number> onSelectProp: (propId: number) => void onSelectPlayground?: () => void hideHeader?: boolean showAll?: boolean onToggleShowAll?: () => void } export function EuclidMap({ completed, onSelectProp, onSelectPlayground, hideHeader, showAll: showAllProp, onToggleShowAll, }: EuclidMapProps) { // showAll can be controlled externally (foundations page) or internally (main map page) const [showAllInternal, setShowAllInternal] = useState(false) const showAll = showAllProp ?? showAllInternal const setShowAll = onToggleShowAll ?? (() => setShowAllInternal((prev) => !prev)) const [hoveredNode, setHoveredNode] = useState<number | null>(null) const [comingSoonOpacity, setComingSoonOpacity] = useState(1) const [rowWindow, setRowWindow] = useState(3) // how many rows from center to fit in viewport const previews = usePropPreviews() const { isVisualDebugEnabled } = useVisualDebugSafe() const completedCount = completed.size const totalImplemented = IMPLEMENTED_PROPS.size // Compute visible nodes + layout (dagre-powered) const visibleIds = useMemo(() => getVisibleNodes(completed, showAll), [completed, showAll]) const { nodes: layout, edges } = useMemo(() => { const raw = computeLayout(visibleIds) // Scale Y coordinates to add vertical breathing room const scaledNodes = new Map<number, { x: number; y: number; level: number }>() for (const [id, pos] of raw.nodes) { scaledNodes.set(id, { x: pos.x, y: pos.y * Y_SCALE, level: pos.level }) } const scaledEdges = raw.edges.map((e) => ({ ...e, points: e.points.map((p) => ({ x: p.x, y: p.y * Y_SCALE })), })) return { nodes: scaledNodes, edges: scaledEdges } }, [visibleIds]) // Compute SVG viewBox (static — used for normal map page) const viewBox = useMemo(() => { if (layout.size === 0) return '0 0 400 300' let minX = Infinity, maxX = -Infinity, minY = Infinity, maxY = -Infinity for (const pos of layout.values()) { const halfW = NODE_W / 2 const halfH = RENDER_H / 2 minX = Math.min(minX, pos.x - halfW) maxX = Math.max(maxX, pos.x + halfW) minY = Math.min(minY, pos.y - halfH) maxY = Math.max(maxY, pos.y + halfH) } // Also account for edge routing points for (const edge of edges) { for (const pt of edge.points) { minX = Math.min(minX, pt.x - 5) maxX = Math.max(maxX, pt.x + 5) minY = Math.min(minY, pt.y - 5) maxY = Math.max(maxY, pt.y + 5) } } const padX = 20 const padY = 20 const contentW = maxX - minX + padX * 2 const contentH = maxY - minY + padY * 2 const w = Math.max(contentW, 400) const offsetX = minX - padX - (w - contentW) / 2 return `${offsetX} ${minY - padY} ${w} ${contentH}` }, [layout, edges]) // ------------------------------------------------------------------------- // Scroll-driven viewport (foundations page only) // The SVG is sticky in the viewport; scrolling pans/zooms through the graph. // // 1:1 finger tracking: the adaptive zoom changes the scale (pixels per SVG // unit) as you scroll. Without correction, content moves faster when zoomed // in and slower when zoomed out, making it feel decoupled from the finger. // // Fix: pre-compute a cumulative integral of vbW over progress. This warps // the progress→vbY mapping so each scroll pixel produces exactly 1 screen // pixel of apparent vertical movement regardless of the current zoom level. // The spacer height is sized to match the total screen-pixel travel. // ------------------------------------------------------------------------- // Per-row metadata for scroll-driven viewport const rowMeta = useMemo(() => { if (!hideHeader || layout.size === 0) return null const byY = new Map<number, number[]>() for (const [, pos] of layout) { let xs = byY.get(pos.y) if (!xs) { xs = [] byY.set(pos.y, xs) } xs.push(pos.x) } const rows: { y: number; centerX: number; width: number }[] = [] for (const [y, xs] of byY) { const minX = Math.min(...xs) const maxX = Math.max(...xs) rows.push({ y, centerX: (minX + maxX) / 2, width: maxX - minX + NODE_W }) } rows.sort((a, b) => a.y - b.y) // Global center X for horizontal panning let gMinX = Infinity, gMaxX = -Infinity for (const pos of layout.values()) { gMinX = Math.min(gMinX, pos.x) gMaxX = Math.max(gMaxX, pos.x) } return { rows, globalCenterX: (gMinX + gMaxX) / 2 } }, [layout, hideHeader]) const stickyRef = useRef<HTMLDivElement>(null) const containerRef = useRef<HTMLDivElement>(null) const scrollContainerRef = useRef<HTMLElement | null>(null) const [scrollViewBox, setScrollViewBox] = useState<string | null>(null) const [spacerHeight, setSpacerHeight] = useState(0) // Cache for the 1:1 scroll mapping (recomputed when layout/container changes) const scrollMappingRef = useRef<{ /** Normalized cumulative integral of vbW: maps progress (0→1) to yFraction (0→1) */ normalizedCumulative: number[] /** Total SVG Y travel from start to end */ totalYTravel: number /** Starting vbY (first row at top of viewport) */ startVbY: number /** Ideal spacer height in CSS pixels for 1:1 tracking */ idealSpacerPx: number /** Cache key to detect when recomputation is needed */ key: string } | null>(null) const updateScrollViewBox = useCallback(() => { const container = containerRef.current const sticky = stickyRef.current if (!container || !sticky || !rowMeta || rowMeta.rows.length === 0) return const stickyH = sticky.clientHeight const stickyW = sticky.clientWidth if (stickyH === 0 || stickyW === 0) return const { rows } = rowMeta const firstY = rows[0].y const lastY = rows[rows.length - 1].y const aspect = stickyW / stickyH // --- Row width computation (unchanged — feeds Catmull-Rom adaptive zoom) --- const PAD = 140 const MIN_VB_W = 280 const rawWidths = rows.map((r) => Math.max(MIN_VB_W, r.width + PAD)) const radius = rowWindow - 1 const rowWidths = rawWidths.map((_, i) => { let maxW = rawWidths[i] for (let d = 1; d <= radius; d++) { if (i - d >= 0) maxW = Math.max(maxW, rawWidths[i - d]) if (i + d < rawWidths.length) maxW = Math.max(maxW, rawWidths[i + d]) } return maxW }) const rowCenters = rows.map((r) => r.centerX) // Catmull-Rom interpolation (reused for both adaptive zoom and mapping) const catmullRom = (values: number[], idx: number, u: number) => { const p0 = values[Math.max(0, idx - 1)] const p1 = values[idx] const p2 = values[Math.min(values.length - 1, idx + 1)] const p3 = values[Math.min(values.length - 1, idx + 2)] const u2 = u * u const u3 = u2 * u return ( 0.5 * (2 * p1 + (-p0 + p2) * u + (2 * p0 - 5 * p1 + 4 * p2 - p3) * u2 + (-p0 + 3 * p1 - 3 * p2 + p3) * u3) ) } // Helper: compute vbW at a given progress value const vbWAtProgress = (p: number) => { const cy = firstY + p * (lastY - firstY) let si = 0 for (let i = 0; i < rows.length - 1; i++) { if (rows[i].y <= cy && rows[i + 1].y > cy) { si = i break } if (i === rows.length - 2) si = i } const st = rows[si + 1].y === rows[si].y ? 0 : (cy - rows[si].y) / (rows[si + 1].y - rows[si].y) return catmullRom(rowWidths, si, st) } // --- Pre-compute 1:1 scroll mapping (cached, recomputed on layout/resize) --- const mappingKey = `${rows.length}-${firstY}-${lastY}-${stickyW}-${stickyH}-${rowWindow}` if (!scrollMappingRef.current || scrollMappingRef.current.key !== mappingKey) { const N = 200 // Sample vbW at N+1 progress points and build cumulative integral const vbWSamples: number[] = [] for (let i = 0; i <= N; i++) { vbWSamples.push(vbWAtProgress(i / N)) } // Cumulative integral of vbW over progress (trapezoidal rule) // This represents how much SVG-Y-displacement each progress increment // corresponds to, weighted by zoom level. const cumulative: number[] = [0] for (let i = 1; i <= N; i++) { const avg = (vbWSamples[i - 1] + vbWSamples[i]) / 2 cumulative.push(cumulative[i - 1] + avg / N) } const totalIntegral = cumulative[N] // = average vbW // Normalize: maps progress (0→1) to yFraction (0→1) const normalizedCumulative = cumulative.map((v) => v / totalIntegral) // Compute total SVG Y travel const vPad = 20 const startVbY = firstY - RENDER_H / 2 - vPad const endVbW = vbWSamples[N] const endVbH = endVbW / aspect const endVbY = lastY + RENDER_H / 2 + vPad - endVbH const totalYTravel = endVbY - startVbY // Ideal spacer height: total screen pixels needed for 1:1 tracking // d(vbY)/d(scroll) = vbW / containerW, so: // totalScroll = totalYTravel * containerW / avgVbW const idealSpacerPx = (totalYTravel * stickyW) / totalIntegral scrollMappingRef.current = { normalizedCumulative, totalYTravel, startVbY, idealSpacerPx, key: mappingKey, } // Update spacer height (will cause a re-render, but only on layout/resize changes) setSpacerHeight(Math.max(0, idealSpacerPx)) } const mapping = scrollMappingRef.current! // --- Compute scroll progress --- // Use the full scroll range of the scroll parent — no containerTop offset. // The map is sticky and visible from page load, so it should respond to // scrolling from the very first pixel. The ~136px of content above the map // (nav padding, tab pills spacer) is part of the scroll travel. const scrollParent = scrollContainerRef.current let scrollTop: number let scrollRange: number if (scrollParent) { scrollTop = scrollParent.scrollTop scrollRange = Math.max(1, scrollParent.scrollHeight - scrollParent.clientHeight) } else { scrollTop = Math.max(0, -container.getBoundingClientRect().top) scrollRange = Math.max(1, document.documentElement.scrollHeight - window.innerHeight) } const progress = Math.min(1, scrollTop / scrollRange) // --- Adaptive zoom (unchanged — Catmull-Rom for vbW and centerX) --- const currentY = firstY + progress * (lastY - firstY) let segIdx = 0 for (let i = 0; i < rows.length - 1; i++) { if (rows[i].y <= currentY && rows[i + 1].y > currentY) { segIdx = i break } if (i === rows.length - 2) segIdx = i } const t = rows[segIdx + 1].y === rows[segIdx].y ? 0 : (currentY - rows[segIdx].y) / (rows[segIdx + 1].y - rows[segIdx].y) const vbW = catmullRom(rowWidths, segIdx, t) const centerX = catmullRom(rowCenters, segIdx, t) const vbH = vbW / aspect // --- 1:1 tracked vbY via lookup table --- // Interpolate the normalized cumulative to get yFraction at this progress const N = mapping.normalizedCumulative.length - 1 const pScaled = progress * N const lo = Math.min(Math.floor(pScaled), N - 1) const hi = lo + 1 const frac = pScaled - lo const yFraction = mapping.normalizedCumulative[lo] * (1 - frac) + mapping.normalizedCumulative[hi] * frac const vbY = mapping.startVbY + yFraction * mapping.totalYTravel setScrollViewBox(`${centerX - vbW / 2} ${vbY} ${vbW} ${vbH}`) }, [rowMeta, rowWindow]) // Find the actual scroll container and attach scroll listener useEffect(() => { if (!hideHeader || !rowMeta) return // Walk up from the container to find the scrollable ancestor let el: HTMLElement | null = containerRef.current while (el) { const style = getComputedStyle(el) if (style.overflowY === 'auto' || style.overflowY === 'scroll') { scrollContainerRef.current = el break } el = el.parentElement } const scrollTarget = scrollContainerRef.current ?? window scrollTarget.addEventListener('scroll', updateScrollViewBox, { passive: true, } as EventListenerOptions) window.addEventListener('resize', updateScrollViewBox, { passive: true }) // Initial computation updateScrollViewBox() return () => { scrollTarget.removeEventListener('scroll', updateScrollViewBox) window.removeEventListener('resize', updateScrollViewBox) } }, [hideHeader, rowMeta, updateScrollViewBox]) // Tooltip info for hovered locked node const hoveredInfo = useMemo(() => { if (hoveredNode === null) return null const status = getNodeStatus(hoveredNode, completed) if (status !== 'locked') return null const deps = getPrerequisites(hoveredNode) const missing = deps.filter((d) => !completed.has(d)) return { propId: hoveredNode, missing } }, [hoveredNode, completed]) // SVG content shared between scroll-driven and static viewport modes const svgContent = ( <> {/* Arrowhead marker */} <defs> <marker id="arrowhead" markerWidth="4" markerHeight="3" refX="3.5" refY="1.5" orient="auto"> <polygon points="0 0, 4 1.5, 0 3" fill="#cbd5e1" fillOpacity={0.6} /> </marker> </defs> {/* Edges — simplified, trimmed, with arrowheads */} {edges.map((edge) => { const srcPos = layout.get(edge.from) const tgtPos = layout.get(edge.to) if (!srcPos || !tgtPos) return null const trimmed = trimToBorders(edge.points, srcPos.x, srcPos.y, tgtPos.x, tgtPos.y) const simplified = simplifyPoints(trimmed, 4) const d = pointsToPath(simplified) if (!d) return null return ( <path key={`${edge.from}-${edge.to}`} data-element="map-edge" d={d} fill="none" stroke="#cbd5e1" strokeWidth={3} strokeOpacity={0.4} markerEnd="url(#arrowhead)" /> ) })} {/* Nodes */} {visibleIds.map((id) => { const pos = layout.get(id) if (!pos) return null const status = getNodeStatus(id, completed) const style = STATUS_STYLES[status] const prop = getProposition(id) const isClickable = status === 'completed' || status === 'available' const titleLines = prop ? wrapTitle(prop.title, 20) : [] // Vertical layout: thumbnail | number | title lines const topY = pos.y - RENDER_H / 2 const thumbCenterY = topY + 5 // top of thumbnail area const thumbH = previews.has(id) ? PREVIEW_THUMB_H : ICON_SIZE const numberY = topY + thumbH + 12 const titleStartY = numberY + 13 return ( <g key={id} data-element="map-node" data-prop-id={id} data-status={status} style={{ cursor: isClickable ? 'pointer' : 'default', opacity: status === 'coming-soon' ? comingSoonOpacity : style.opacity, }} onClick={() => isClickable && onSelectProp(id)} onMouseEnter={() => setHoveredNode(id)} onMouseLeave={() => setHoveredNode(null)} > {/* Opaque background so edges are occluded behind node */} <rect x={pos.x - NODE_W / 2} y={topY} width={NODE_W} height={RENDER_H} rx={NODE_RX} fill="#FAFAF0" /> <rect x={pos.x - NODE_W / 2} y={topY} width={NODE_W} height={RENDER_H} rx={NODE_RX} fill={style.fill} stroke={style.stroke} strokeWidth={status === 'available' ? 2 : 1.5} strokeDasharray={style.strokeDash} /> {/* Geometric thumbnail — real construction preview or generic icon */} {prop && (previews.get(id) ? ( <image href={previews.get(id)} x={pos.x - PREVIEW_THUMB_W / 2} y={thumbCenterY} width={PREVIEW_THUMB_W} height={PREVIEW_THUMB_H} preserveAspectRatio="xMidYMid meet" /> ) : ( <g transform={`translate(${pos.x - ICON_SIZE / 2}, ${thumbCenterY})`}> <PropThumbnail propId={id} block={prop.block} color={style.textColor} /> </g> ))} {/* Type badge (P = Problem/construction, T = Theorem) */} {prop && ( <g data-element="type-badge"> <rect x={pos.x - NODE_W / 2 + 4} y={topY + 4} width={14} height={14} rx={3} fill={ prop.type === 'construction' ? 'rgba(245,158,11,0.15)' : 'rgba(99,102,241,0.12)' } /> <text x={pos.x - NODE_W / 2 + 11} y={topY + 11} fontSize={8} fontWeight={700} fontFamily="system-ui, sans-serif" fill={prop.type === 'construction' ? '#d97706' : '#4f46e5'} textAnchor="middle" dominantBaseline="central" > {prop.type === 'construction' ? 'P' : 'T'} </text> </g> )} {/* Checkmark for completed */} {status === 'completed' && ( <text x={pos.x + NODE_W / 2 - 14} y={topY + 10} fontSize={11} fill="#10b981" textAnchor="middle" dominantBaseline="central" fontWeight={700} > ✓ </text> )} {/* Prop number */} <text x={pos.x} y={numberY} fontSize={12} fontWeight={700} fontFamily="Georgia, serif" fill={style.textColor} textAnchor="middle" dominantBaseline="central" > I.{id} </text> {/* Wrapped title (up to 3 lines) */} {titleLines.map((line, i, arr) => ( <text key={i} x={pos.x} y={titleStartY + i * 10} fontSize={8} fontFamily="Georgia, serif" fill={style.textColor} textAnchor="middle" dominantBaseline="central" opacity={0.65} > {i === arr.length - 1 && line.length >= 20 ? line.slice(0, 19) + '…' : line} </text> ))} </g> ) })} </> ) return ( <div data-component="euclid-map" style={{ width: '100%', ...(hideHeader ? {} : { height: '100%' }), display: 'flex', flexDirection: 'column', background: '#FAFAF0', }} > {/* Header bar */} {!hideHeader && ( <div data-element="map-header" style={{ padding: '16px 24px', display: 'flex', alignItems: 'center', justifyContent: 'space-between', borderBottom: '1px solid rgba(203, 213, 225, 0.4)', flexShrink: 0, }} > <div style={{ display: 'flex', alignItems: 'baseline', gap: 12 }}> <span style={{ fontSize: 18, fontWeight: 700, fontFamily: 'Georgia, serif', color: '#1e293b', }} > Book I </span> <span style={{ fontSize: 13, color: '#6b7280', fontFamily: 'Georgia, serif', }} > {completedCount} of {totalImplemented} complete </span> </div> <div style={{ display: 'flex', gap: 8 }}> {onSelectPlayground && ( <button type="button" data-action="open-playground" onClick={onSelectPlayground} style={{ padding: '6px 14px', fontSize: 13, fontWeight: 500, fontFamily: 'system-ui, sans-serif', background: 'rgba(245, 158, 11, 0.08)', color: '#d97706', border: '1px solid #fbbf24', borderRadius: 8, cursor: 'pointer', transition: 'all 0.15s', }} > Playground </button> )} <button type="button" data-action="toggle-show-all" onClick={setShowAll} style={{ padding: '6px 14px', fontSize: 13, fontWeight: 500, fontFamily: 'system-ui, sans-serif', background: showAll ? 'rgba(59, 130, 246, 0.08)' : 'transparent', color: showAll ? '#3b82f6' : '#6b7280', border: `1px solid ${showAll ? '#93c5fd' : '#d1d5db'}`, borderRadius: 8, cursor: 'pointer', transition: 'all 0.15s', }} > {showAll ? 'Show available' : 'Show all 48'} </button> </div> </div> )} {/* SVG map */} {hideHeader ? ( /* Scroll-driven viewport: sticky SVG + scroll spacer */ <div ref={containerRef} data-element="map-viewport-scroll" style={{ position: 'relative' }}> <div ref={stickyRef} style={{ position: 'sticky', top: 'calc(var(--app-nav-height, 0px) + 3rem)', height: 'calc(100vh - var(--app-nav-height, 0px) - 3rem)', }} > <svg data-element="map-svg" viewBox={scrollViewBox ?? viewBox} preserveAspectRatio="xMidYMid meet" style={{ display: 'block', width: '100%', height: '100%', overflow: 'visible' }} > {svgContent} </svg> </div> {/* Spacer sized for 1:1 finger tracking — each scroll pixel produces exactly 1 screen pixel of apparent content movement. Height is computed from the integral of vbW over the adaptive zoom curve. */} <div style={{ height: spacerHeight }} /> </div> ) : ( /* Normal scrollable map */ <div data-element="map-viewport" style={{ flex: 1, minHeight: 0, overflow: 'auto', padding: '24px 20px' }} > <svg data-element="map-svg" viewBox={viewBox} style={{ display: 'block', width: '100%', maxWidth: 900, margin: '0 auto' }} > {svgContent} </svg> </div> )} {/* Legend — type badges */} {!hideHeader && ( <div data-element="map-legend" style={{ display: 'flex', justifyContent: 'center', gap: 20, padding: '12px 0 4px', fontSize: 12, fontFamily: 'system-ui, sans-serif', color: '#6b7280', }} > <span style={{ display: 'inline-flex', alignItems: 'center', gap: 5 }}> <span style={{ display: 'inline-flex', alignItems: 'center', justifyContent: 'center', width: 16, height: 16, borderRadius: 3, background: 'rgba(245,158,11,0.15)', color: '#d97706', fontSize: 9, fontWeight: 700, }} > P </span> Problem (construction) </span> <span style={{ display: 'inline-flex', alignItems: 'center', gap: 5 }}> <span style={{ display: 'inline-flex', alignItems: 'center', justifyContent: 'center', width: 16, height: 16, borderRadius: 3, background: 'rgba(99,102,241,0.12)', color: '#4f46e5', fontSize: 9, fontWeight: 700, }} > T </span> Theorem </span> </div> )} {/* Tooltip for locked nodes */} {hoveredInfo && ( <div data-element="map-tooltip" style={{ position: 'absolute', bottom: 16, left: '50%', transform: 'translateX(-50%)', background: 'rgba(17, 24, 39, 0.92)', color: '#e5e7eb', padding: '8px 14px', borderRadius: 8, fontSize: 12, fontFamily: 'system-ui, sans-serif', whiteSpace: 'nowrap', pointerEvents: 'none', zIndex: 10, }} > Requires: {hoveredInfo.missing.map((d) => `I.${d}`).join(', ')} </div> )} <ToyDebugPanel title="Euclid Map"> <DebugSlider label="Coming-soon opacity" value={comingSoonOpacity} min={0} max={1} step={0.05} onChange={setComingSoonOpacity} formatValue={(v) => v.toFixed(2)} /> {hideHeader && ( <DebugSlider label="Row window" value={rowWindow} min={1} max={3} step={1} onChange={setRowWindow} formatValue={(v) => (v === 1 ? '1 (center only)' : `${v} (±${v - 1} rows)`)} /> )} </ToyDebugPanel> </div> ) } // --------------------------------------------------------------------------- // Helpers // --------------------------------------------------------------------------- /** * Word-wrap a title into lines of at most `maxLen` characters. * Breaks on word boundaries; returns at most 3 lines. */ function wrapTitle(title: string, maxLen: number): string[] { if (title.length <= maxLen) return [title] const words = title.split(' ') const lines: string[] = [] let current = '' for (const word of words) { const candidate = current ? `${current} ${word}` : word if (candidate.length > maxLen && current) { lines.push(current) current = word if (lines.length >= 3) break } else { current = candidate } } if (current && lines.length < 3) lines.push(current) return lines.slice(0, 3) } |