{
  "version": 3,
  "sources": ["../../../../../src/lib/shapes/draw/toolStates/Drawing.ts"],
  "sourcesContent": ["import {\n\tMat,\n\tStateNode,\n\tTLDefaultSizeStyle,\n\tTLDrawShape,\n\tTLDrawShapeSegment,\n\tTLHighlightShape,\n\tTLKeyboardEventInfo,\n\tTLPointerEventInfo,\n\tTLShapePartial,\n\tVec,\n\tVecModel,\n\tb64Vecs,\n\tcreateShapeId,\n\tlast,\n\tsnapAngle,\n\tstructuredClone,\n\ttoFixed,\n\tuniqueId,\n} from '@tldraw/editor'\nimport { HighlightShapeUtil } from '../../highlight/HighlightShapeUtil'\nimport { STROKE_SIZES } from '../../shared/default-shape-constants'\nimport { DrawShapeUtil } from '../DrawShapeUtil'\n\ntype DrawableShape = TLDrawShape | TLHighlightShape\n\nexport class Drawing extends StateNode {\n\tstatic override id = 'drawing'\n\n\tinfo = {} as TLPointerEventInfo\n\n\tinitialShape?: DrawableShape\n\n\toverride shapeType = this.parent.id === 'highlight' ? ('highlight' as const) : ('draw' as const)\n\n\tutil = this.editor.getShapeUtil(this.shapeType) as DrawShapeUtil | HighlightShapeUtil\n\n\tisPen = false\n\tisPenOrStylus = false\n\n\tsegmentMode = 'free' as 'free' | 'straight' | 'starting_straight' | 'starting_free'\n\n\tdidJustShiftClickToExtendPreviousShapeLine = false\n\n\tpagePointWhereCurrentSegmentChanged = {} as Vec\n\n\tpagePointWhereNextSegmentChanged = null as Vec | null\n\n\tlastRecordedPoint = {} as Vec\n\tmergeNextPoint = false\n\tcurrentLineLength = 0\n\n\t// Cache for current segment's points to avoid repeated b64 decode/encode\n\tcurrentSegmentPoints: Vec[] = []\n\n\tmarkId = null as null | string\n\n\toverride onEnter(info: TLPointerEventInfo) {\n\t\tthis.markId = null\n\t\tthis.info = info\n\t\tthis.lastRecordedPoint = this.editor.inputs.getCurrentPagePoint().clone()\n\t\tthis.startShape()\n\t}\n\n\toverride onPointerMove() {\n\t\tconst { inputs } = this.editor\n\t\tconst isPen = inputs.getIsPen()\n\n\t\tif (this.isPen && !isPen) {\n\t\t\t// The user made a palm gesture before starting a pen gesture;\n\t\t\t// ideally we'd start the new shape here but we could also just bail\n\t\t\t// as the next interaction will work correctly\n\t\t\tif (this.markId) {\n\t\t\t\tthis.editor.bailToMark(this.markId)\n\t\t\t\tthis.startShape()\n\t\t\t\treturn\n\t\t\t}\n\t\t}\n\n\t\tif (this.isPenOrStylus) {\n\t\t\t// Don't update the shape if we haven't moved far enough from the last time we recorded a point\n\t\t\tconst currentPagePoint = inputs.getCurrentPagePoint()\n\t\t\tif (Vec.Dist(currentPagePoint, this.lastRecordedPoint) >= 1 / this.editor.getZoomLevel()) {\n\t\t\t\tthis.lastRecordedPoint = currentPagePoint.clone()\n\t\t\t\tthis.mergeNextPoint = false\n\t\t\t} else {\n\t\t\t\tthis.mergeNextPoint = true\n\t\t\t}\n\t\t} else {\n\t\t\tthis.mergeNextPoint = false\n\t\t}\n\n\t\tthis.updateDrawingShape()\n\t}\n\n\toverride onKeyDown(info: TLKeyboardEventInfo) {\n\t\tif (info.key === 'Shift') {\n\t\t\tswitch (this.segmentMode) {\n\t\t\t\tcase 'free': {\n\t\t\t\t\t// We've just entered straight mode, go to straight mode\n\t\t\t\t\tthis.segmentMode = 'starting_straight'\n\t\t\t\t\tthis.pagePointWhereNextSegmentChanged = this.editor.inputs.getCurrentPagePoint().clone()\n\t\t\t\t\tbreak\n\t\t\t\t}\n\t\t\t\tcase 'starting_free': {\n\t\t\t\t\tthis.segmentMode = 'starting_straight'\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tthis.updateDrawingShape()\n\t}\n\n\toverride onKeyUp(info: TLKeyboardEventInfo) {\n\t\tif (info.key === 'Shift') {\n\t\t\tthis.editor.snaps.clearIndicators()\n\n\t\t\tswitch (this.segmentMode) {\n\t\t\t\tcase 'straight': {\n\t\t\t\t\t// We've just exited straight mode, go back to free mode\n\t\t\t\t\tthis.segmentMode = 'starting_free'\n\t\t\t\t\tthis.pagePointWhereNextSegmentChanged = this.editor.inputs.getCurrentPagePoint().clone()\n\t\t\t\t\tbreak\n\t\t\t\t}\n\t\t\t\tcase 'starting_straight': {\n\t\t\t\t\tthis.pagePointWhereNextSegmentChanged = null\n\t\t\t\t\tthis.segmentMode = 'free'\n\t\t\t\t\tbreak\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tthis.updateDrawingShape()\n\t}\n\n\toverride onExit() {\n\t\tthis.editor.snaps.clearIndicators()\n\t\tthis.pagePointWhereCurrentSegmentChanged = this.editor.inputs.getCurrentPagePoint().clone()\n\t}\n\n\tcanClose() {\n\t\treturn this.shapeType !== 'highlight'\n\t}\n\n\tgetIsClosed(segments: TLDrawShapeSegment[], size: TLDefaultSizeStyle, scale: number) {\n\t\tif (!this.canClose()) return false\n\n\t\tconst strokeWidth = STROKE_SIZES[size]\n\t\tconst firstPoint = b64Vecs.decodeFirstPoint(segments[0].path)\n\t\tconst lastSegment = segments[segments.length - 1]\n\t\tconst lastPoint = b64Vecs.decodeLastPoint(lastSegment.path)\n\n\t\treturn (\n\t\t\tfirstPoint !== null &&\n\t\t\tlastPoint !== null &&\n\t\t\tfirstPoint !== lastPoint &&\n\t\t\tthis.currentLineLength > strokeWidth * 4 * scale &&\n\t\t\tVec.DistMin(firstPoint, lastPoint, strokeWidth * 2 * scale)\n\t\t)\n\t}\n\n\tprivate startShape() {\n\t\tconst inputs = this.editor.inputs\n\t\tconst originPagePoint = inputs.getOriginPagePoint()\n\t\tconst isPen = inputs.getIsPen()\n\n\t\tthis.markId = this.editor.markHistoryStoppingPoint('draw start')\n\n\t\t// If the pressure is weird, then it's probably a stylus reporting as a mouse\n\t\t// We treat pen/stylus inputs differently in the drawing tool, so we need to\n\t\t// have our own value for this. The inputs.isPen is only if the input is a regular\n\t\t// pen, like an iPad pen, which needs to trigger \"pen mode\" in order to avoid\n\t\t// accidental palm touches. We don't have to worry about that with styluses though.\n\t\tconst { z = 0.5 } = this.info.point\n\n\t\tthis.isPen = isPen\n\t\t// if z === 0 on the initial point, treat this pen as a mouse because it's likely a broken pen\n\t\t// or a broken OS.\n\t\tthis.isPenOrStylus = (isPen && z !== 0) || (z > 0 && z < 0.5) || (z > 0.5 && z < 1)\n\n\t\tconst pressure = this.isPenOrStylus ? z * 1.25 : 0.5\n\n\t\tthis.segmentMode = this.editor.inputs.getShiftKey() ? 'straight' : 'free'\n\n\t\tthis.didJustShiftClickToExtendPreviousShapeLine = false\n\n\t\tthis.lastRecordedPoint = originPagePoint.clone()\n\n\t\tif (this.initialShape) {\n\t\t\tconst shape = this.editor.getShape<DrawableShape>(this.initialShape.id)\n\n\t\t\tif (shape && this.segmentMode === 'straight') {\n\t\t\t\t// Connect dots\n\n\t\t\t\tthis.didJustShiftClickToExtendPreviousShapeLine = true\n\n\t\t\t\tconst prevSegment = last(shape.props.segments)\n\t\t\t\tif (!prevSegment) throw Error('Expected a previous segment!')\n\t\t\t\tconst prevPoint = b64Vecs.decodeLastPoint(prevSegment.path)\n\t\t\t\tif (!prevPoint) throw Error('Expected a previous point!')\n\n\t\t\t\tconst { x, y } = this.editor.getPointInShapeSpace(shape, originPagePoint).toFixed()\n\n\t\t\t\tconst newSegment: TLDrawShapeSegment = {\n\t\t\t\t\ttype: this.segmentMode,\n\t\t\t\t\tpath: b64Vecs.encodePoints([\n\t\t\t\t\t\t{ x: prevPoint.x, y: prevPoint.y, z: +pressure.toFixed(2) },\n\t\t\t\t\t\t{ x, y, z: +pressure.toFixed(2) },\n\t\t\t\t\t]),\n\t\t\t\t}\n\n\t\t\t\t// Convert prevPoint to page space\n\t\t\t\tconst prevPointPageSpace = Mat.applyToPoint(\n\t\t\t\t\tthis.editor.getShapePageTransform(shape.id)!,\n\t\t\t\t\tprevPoint\n\t\t\t\t)\n\t\t\t\tthis.pagePointWhereCurrentSegmentChanged = prevPointPageSpace\n\t\t\t\tthis.pagePointWhereNextSegmentChanged = null\n\t\t\t\tconst segments = [...shape.props.segments, newSegment]\n\n\t\t\t\tif (this.currentLineLength < STROKE_SIZES[shape.props.size] * 4) {\n\t\t\t\t\tthis.currentLineLength = this.getLineLength(segments)\n\t\t\t\t}\n\n\t\t\t\tconst shapePartial: TLShapePartial<DrawableShape> = {\n\t\t\t\t\tid: shape.id,\n\t\t\t\t\ttype: this.shapeType,\n\t\t\t\t\tprops: {\n\t\t\t\t\t\tsegments,\n\t\t\t\t\t},\n\t\t\t\t}\n\n\t\t\t\tif (this.canClose()) {\n\t\t\t\t\t;(shapePartial as TLShapePartial<TLDrawShape>).props!.isClosed = this.getIsClosed(\n\t\t\t\t\t\tsegments,\n\t\t\t\t\t\tshape.props.size,\n\t\t\t\t\t\tshape.props.scale\n\t\t\t\t\t)\n\t\t\t\t}\n\n\t\t\t\tthis.editor.updateShapes([shapePartial])\n\n\t\t\t\treturn\n\t\t\t}\n\t\t}\n\n\t\t// Create a new shape\n\n\t\tthis.pagePointWhereCurrentSegmentChanged = originPagePoint.clone()\n\t\tconst id = createShapeId()\n\n\t\t// Initialize the segment points cache\n\t\tconst initialPoint = new Vec(0, 0, +pressure.toFixed(2))\n\t\tthis.currentSegmentPoints = [initialPoint]\n\n\t\t// Allow this to trigger the max shapes reached alert\n\t\tthis.editor.createShape({\n\t\t\tid,\n\t\t\ttype: this.shapeType,\n\t\t\tx: originPagePoint.x,\n\t\t\ty: originPagePoint.y,\n\t\t\tprops: {\n\t\t\t\tisPen: this.isPenOrStylus,\n\t\t\t\tscale: this.editor.getResizeScaleFactor(),\n\t\t\t\tsegments: [\n\t\t\t\t\t{\n\t\t\t\t\t\ttype: this.segmentMode,\n\t\t\t\t\t\tpath: b64Vecs.encodePoints([initialPoint]),\n\t\t\t\t\t},\n\t\t\t\t],\n\t\t\t},\n\t\t})\n\t\tconst shape = this.editor.getShape<DrawableShape>(id)\n\t\tif (!shape) {\n\t\t\tthis.cancel()\n\t\t\treturn\n\t\t}\n\t\tthis.currentLineLength = 0\n\t\tthis.initialShape = this.editor.getShape<DrawableShape>(id)\n\t}\n\n\tprivate updateDrawingShape() {\n\t\tconst { initialShape } = this\n\t\tconst { inputs } = this.editor\n\n\t\tif (!initialShape) return\n\n\t\tconst {\n\t\t\tid,\n\t\t\tprops: { size, scale },\n\t\t} = initialShape\n\n\t\tconst shape = this.editor.getShape<DrawableShape>(id)!\n\n\t\tif (!shape) return\n\n\t\tconst { segments } = shape.props\n\n\t\tconst currentPagePoint = inputs.getCurrentPagePoint()\n\t\tconst { x, y, z } = this.editor.getPointInShapeSpace(shape, currentPagePoint).toFixed()\n\t\tconst pressure = this.isPenOrStylus ? +(currentPagePoint.z! * 1.25).toFixed(2) : 0.5\n\t\tconst newPoint = { x, y, z: pressure }\n\n\t\tswitch (this.segmentMode) {\n\t\t\tcase 'starting_straight': {\n\t\t\t\tconst { pagePointWhereNextSegmentChanged } = this\n\n\t\t\t\tif (pagePointWhereNextSegmentChanged === null) {\n\t\t\t\t\tthrow Error('We should have a point where the segment changed')\n\t\t\t\t}\n\n\t\t\t\tconst hasMovedFarEnough =\n\t\t\t\t\tVec.Dist2(pagePointWhereNextSegmentChanged, inputs.getCurrentPagePoint()) >\n\t\t\t\t\tthis.editor.options.dragDistanceSquared\n\n\t\t\t\t// Find the distance from where the pointer was when shift was released and\n\t\t\t\t// where it is now; if it's far enough away, then update the page point where\n\t\t\t\t// the current segment changed (to match the pagepoint where next segment changed)\n\t\t\t\t// and set the pagepoint where next segment changed to null.\n\t\t\t\tif (hasMovedFarEnough) {\n\t\t\t\t\tthis.pagePointWhereCurrentSegmentChanged = this.pagePointWhereNextSegmentChanged!.clone()\n\t\t\t\t\tthis.pagePointWhereNextSegmentChanged = null\n\n\t\t\t\t\t// Set the new mode\n\t\t\t\t\tthis.segmentMode = 'straight'\n\n\t\t\t\t\tconst prevSegment = last(segments)\n\t\t\t\t\tif (!prevSegment) throw Error('Expected a previous segment!')\n\n\t\t\t\t\tconst prevLastPoint = b64Vecs.decodeLastPoint(prevSegment.path)\n\t\t\t\t\tif (!prevLastPoint) throw Error('Expected a previous last point!')\n\n\t\t\t\t\tlet newSegment: TLDrawShapeSegment\n\n\t\t\t\t\tconst newLastPoint = this.editor\n\t\t\t\t\t\t.getPointInShapeSpace(shape, this.pagePointWhereCurrentSegmentChanged)\n\t\t\t\t\t\t.toFixed()\n\t\t\t\t\t\t.toJson()\n\n\t\t\t\t\tif (prevSegment.type === 'straight') {\n\t\t\t\t\t\tthis.currentLineLength += Vec.Dist(prevLastPoint, newLastPoint)\n\n\t\t\t\t\t\tnewSegment = {\n\t\t\t\t\t\t\ttype: 'straight',\n\t\t\t\t\t\t\tpath: b64Vecs.encodePoints([prevLastPoint, newLastPoint]),\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tconst transform = this.editor.getShapePageTransform(shape)!\n\n\t\t\t\t\t\tthis.pagePointWhereCurrentSegmentChanged = Mat.applyToPoint(transform, prevLastPoint)\n\t\t\t\t\t} else {\n\t\t\t\t\t\tnewSegment = {\n\t\t\t\t\t\t\ttype: 'straight',\n\t\t\t\t\t\t\tpath: b64Vecs.encodePoints([newLastPoint, newPoint]),\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\tconst shapePartial: TLShapePartial<DrawableShape> = {\n\t\t\t\t\t\tid,\n\t\t\t\t\t\ttype: this.shapeType,\n\t\t\t\t\t\tprops: {\n\t\t\t\t\t\t\tsegments: [...segments, newSegment],\n\t\t\t\t\t\t},\n\t\t\t\t\t}\n\n\t\t\t\t\tif (this.canClose()) {\n\t\t\t\t\t\t;(shapePartial as TLShapePartial<TLDrawShape>).props!.isClosed = this.getIsClosed(\n\t\t\t\t\t\t\tsegments,\n\t\t\t\t\t\t\tsize,\n\t\t\t\t\t\t\tscale\n\t\t\t\t\t\t)\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.editor.updateShapes([shapePartial])\n\t\t\t\t}\n\t\t\t\tbreak\n\t\t\t}\n\t\t\tcase 'starting_free': {\n\t\t\t\tconst { pagePointWhereNextSegmentChanged } = this\n\n\t\t\t\tif (pagePointWhereNextSegmentChanged === null) {\n\t\t\t\t\tthrow Error('We should have a point where the segment changed')\n\t\t\t\t}\n\n\t\t\t\tconst hasMovedFarEnough =\n\t\t\t\t\tVec.Dist2(pagePointWhereNextSegmentChanged, inputs.getCurrentPagePoint()) >\n\t\t\t\t\tthis.editor.options.dragDistanceSquared\n\n\t\t\t\t// Find the distance from where the pointer was when shift was released and\n\t\t\t\t// where it is now; if it's far enough away, then update the page point where\n\t\t\t\t// the current segment changed (to match the pagepoint where next segment changed)\n\t\t\t\t// and set the pagepoint where next segment changed to null.\n\t\t\t\tif (hasMovedFarEnough) {\n\t\t\t\t\tthis.pagePointWhereCurrentSegmentChanged = this.pagePointWhereNextSegmentChanged!.clone()\n\t\t\t\t\tthis.pagePointWhereNextSegmentChanged = null\n\n\t\t\t\t\t// Set the new mode\n\t\t\t\t\tthis.segmentMode = 'free'\n\n\t\t\t\t\tconst newSegments = segments.slice()\n\t\t\t\t\tconst prevStraightSegment = newSegments[newSegments.length - 1]\n\t\t\t\t\tconst prevPoint = b64Vecs.decodeLastPoint(prevStraightSegment.path)\n\n\t\t\t\t\tif (!prevPoint) {\n\t\t\t\t\t\tthrow Error('No previous point!')\n\t\t\t\t\t}\n\n\t\t\t\t\t// Create the new free segment and interpolate the points between where the last line\n\t\t\t\t\t// ended and where the pointer is now\n\t\t\t\t\tconst interpolatedPoints = Vec.PointsBetween(prevPoint, newPoint, 6).map(\n\t\t\t\t\t\t(p) => new Vec(toFixed(p.x), toFixed(p.y), toFixed(p.z))\n\t\t\t\t\t)\n\t\t\t\t\t// Initialize cache for the new free segment\n\t\t\t\t\tthis.currentSegmentPoints = interpolatedPoints\n\n\t\t\t\t\tconst newFreeSegment: TLDrawShapeSegment = {\n\t\t\t\t\t\ttype: 'free',\n\t\t\t\t\t\tpath: b64Vecs.encodePoints(interpolatedPoints),\n\t\t\t\t\t}\n\n\t\t\t\t\tconst finalSegments = [...newSegments, newFreeSegment]\n\n\t\t\t\t\tif (this.currentLineLength < STROKE_SIZES[shape.props.size] * 4) {\n\t\t\t\t\t\tthis.currentLineLength = this.getLineLength(finalSegments)\n\t\t\t\t\t}\n\n\t\t\t\t\tconst shapePartial: TLShapePartial<DrawableShape> = {\n\t\t\t\t\t\tid,\n\t\t\t\t\t\ttype: this.shapeType,\n\t\t\t\t\t\tprops: {\n\t\t\t\t\t\t\tsegments: finalSegments,\n\t\t\t\t\t\t},\n\t\t\t\t\t}\n\n\t\t\t\t\tif (this.canClose()) {\n\t\t\t\t\t\t;(shapePartial as TLShapePartial<TLDrawShape>).props!.isClosed = this.getIsClosed(\n\t\t\t\t\t\t\tfinalSegments,\n\t\t\t\t\t\t\tsize,\n\t\t\t\t\t\t\tscale\n\t\t\t\t\t\t)\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.editor.updateShapes([shapePartial])\n\t\t\t\t}\n\n\t\t\t\tbreak\n\t\t\t}\n\t\t\tcase 'straight': {\n\t\t\t\tconst newSegments = segments.slice()\n\t\t\t\tconst newSegment = newSegments[newSegments.length - 1]\n\n\t\t\t\tconst { pagePointWhereCurrentSegmentChanged } = this\n\t\t\t\tconst inputs = this.editor.inputs\n\t\t\t\tconst ctrlKey = inputs.getCtrlKey()\n\t\t\t\tconst currentPagePoint = inputs.getCurrentPagePoint()\n\n\t\t\t\tif (!pagePointWhereCurrentSegmentChanged)\n\t\t\t\t\tthrow Error('We should have a point where the segment changed')\n\n\t\t\t\tlet pagePoint: VecModel\n\t\t\t\tlet shouldSnapToAngle = false\n\n\t\t\t\tif (this.didJustShiftClickToExtendPreviousShapeLine) {\n\t\t\t\t\tif (this.editor.inputs.getIsDragging()) {\n\t\t\t\t\t\t// If we've just shift clicked to extend a line, only snap once we've started dragging\n\t\t\t\t\t\tshouldSnapToAngle = !ctrlKey\n\t\t\t\t\t\tthis.didJustShiftClickToExtendPreviousShapeLine = false\n\t\t\t\t\t} else {\n\t\t\t\t\t\t// noop\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\t// If we're not shift clicking to extend a line, but we're holding shift, then we should snap\n\t\t\t\t\tshouldSnapToAngle = !ctrlKey // don't snap angle while snapping line\n\t\t\t\t}\n\n\t\t\t\tlet newPoint = this.editor.getPointInShapeSpace(shape, currentPagePoint).toFixed().toJson()\n\t\t\t\tlet didSnap = false\n\t\t\t\tlet snapSegment: TLDrawShapeSegment | undefined = undefined\n\n\t\t\t\tconst shouldSnap = this.editor.user.getIsSnapMode() ? !ctrlKey : ctrlKey\n\n\t\t\t\tif (shouldSnap) {\n\t\t\t\t\tif (newSegments.length > 2) {\n\t\t\t\t\t\tlet nearestPoint: VecModel | undefined = undefined\n\t\t\t\t\t\tlet minDistance = 8 / this.editor.getZoomLevel()\n\n\t\t\t\t\t\t// Don't try to snap to the last two segments\n\t\t\t\t\t\tfor (let i = 0, n = segments.length - 2; i < n; i++) {\n\t\t\t\t\t\t\tconst segment = segments[i]\n\t\t\t\t\t\t\tif (!segment) break\n\t\t\t\t\t\t\tif (segment.type === 'free') continue\n\n\t\t\t\t\t\t\tconst first = b64Vecs.decodeFirstPoint(segment.path)\n\t\t\t\t\t\t\tconst lastPoint = b64Vecs.decodeLastPoint(segment.path)\n\t\t\t\t\t\t\tif (!(first && lastPoint)) continue\n\n\t\t\t\t\t\t\t// Snap to the nearest point on the segment, if it's closer than the previous snapped point\n\t\t\t\t\t\t\tconst nearestPointOnSegment = Vec.NearestPointOnLineSegment(\n\t\t\t\t\t\t\t\tfirst,\n\t\t\t\t\t\t\t\tlastPoint,\n\t\t\t\t\t\t\t\tnewPoint\n\t\t\t\t\t\t\t)\n\n\t\t\t\t\t\t\tif (Vec.DistMin(nearestPointOnSegment, newPoint, minDistance)) {\n\t\t\t\t\t\t\t\tnearestPoint = nearestPointOnSegment.toFixed().toJson()\n\t\t\t\t\t\t\t\tminDistance = Vec.Dist(nearestPointOnSegment, newPoint)\n\t\t\t\t\t\t\t\tsnapSegment = segment\n\t\t\t\t\t\t\t\tbreak\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif (nearestPoint) {\n\t\t\t\t\t\t\tdidSnap = true\n\t\t\t\t\t\t\tnewPoint = nearestPoint\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif (didSnap && snapSegment) {\n\t\t\t\t\tconst transform = this.editor.getShapePageTransform(shape)!\n\t\t\t\t\tconst first = b64Vecs.decodeFirstPoint(snapSegment.path)\n\t\t\t\t\tconst lastPoint = b64Vecs.decodeLastPoint(snapSegment.path)\n\t\t\t\t\tif (!first || !lastPoint) throw Error('Expected a last point!')\n\n\t\t\t\t\tconst A = Mat.applyToPoint(transform, first)\n\n\t\t\t\t\tconst B = Mat.applyToPoint(transform, lastPoint)\n\n\t\t\t\t\tconst snappedPoint = Mat.applyToPoint(transform, newPoint)\n\n\t\t\t\t\tthis.editor.snaps.setIndicators([\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\tid: uniqueId(),\n\t\t\t\t\t\t\ttype: 'points',\n\t\t\t\t\t\t\tpoints: [A, snappedPoint, B],\n\t\t\t\t\t\t},\n\t\t\t\t\t])\n\t\t\t\t} else {\n\t\t\t\t\tthis.editor.snaps.clearIndicators()\n\n\t\t\t\t\tif (shouldSnapToAngle) {\n\t\t\t\t\t\t// Snap line angle to nearest 15 degrees\n\t\t\t\t\t\tconst currentAngle = Vec.Angle(pagePointWhereCurrentSegmentChanged, currentPagePoint)\n\t\t\t\t\t\tconst snappedAngle = snapAngle(currentAngle, 24)\n\t\t\t\t\t\tconst angleDiff = snappedAngle - currentAngle\n\n\t\t\t\t\t\tpagePoint = Vec.RotWith(\n\t\t\t\t\t\t\tcurrentPagePoint,\n\t\t\t\t\t\t\tpagePointWhereCurrentSegmentChanged,\n\t\t\t\t\t\t\tangleDiff\n\t\t\t\t\t\t)\n\t\t\t\t\t} else {\n\t\t\t\t\t\tpagePoint = currentPagePoint.clone()\n\t\t\t\t\t}\n\n\t\t\t\t\tnewPoint = this.editor.getPointInShapeSpace(shape, pagePoint).toFixed().toJson()\n\t\t\t\t}\n\n\t\t\t\t// If the previous segment is a one point free shape and is the first segment of the line,\n\t\t\t\t// then the user just did a click-and-immediately-press-shift to create a new straight line\n\t\t\t\t// without continuing the previous line. In this case, we want to remove the previous segment.\n\n\t\t\t\tthis.currentLineLength +=\n\t\t\t\t\tnewSegments.length && b64Vecs.decodeFirstPoint(newSegment.path)\n\t\t\t\t\t\t? Vec.Dist(b64Vecs.decodeFirstPoint(newSegment.path)!, Vec.From(newPoint))\n\t\t\t\t\t\t: 0\n\n\t\t\t\tnewSegments[newSegments.length - 1] = {\n\t\t\t\t\t...newSegment,\n\t\t\t\t\ttype: 'straight',\n\t\t\t\t\tpath: b64Vecs.encodePoints([\n\t\t\t\t\t\tb64Vecs.decodeFirstPoint(newSegment.path)!,\n\t\t\t\t\t\tVec.From(newPoint),\n\t\t\t\t\t]),\n\t\t\t\t}\n\n\t\t\t\tconst shapePartial: TLShapePartial<DrawableShape> = {\n\t\t\t\t\tid,\n\t\t\t\t\ttype: this.shapeType,\n\t\t\t\t\tprops: {\n\t\t\t\t\t\tsegments: newSegments,\n\t\t\t\t\t},\n\t\t\t\t}\n\n\t\t\t\tif (this.canClose()) {\n\t\t\t\t\t;(shapePartial as TLShapePartial<TLDrawShape>).props!.isClosed = this.getIsClosed(\n\t\t\t\t\t\tsegments,\n\t\t\t\t\t\tsize,\n\t\t\t\t\t\tscale\n\t\t\t\t\t)\n\t\t\t\t}\n\n\t\t\t\tthis.editor.updateShapes([shapePartial])\n\n\t\t\t\tbreak\n\t\t\t}\n\t\t\tcase 'free': {\n\t\t\t\t// Use cached points instead of decoding from b64 on every update\n\t\t\t\tconst cachedPoints = this.currentSegmentPoints\n\n\t\t\t\tif (cachedPoints.length && this.mergeNextPoint) {\n\t\t\t\t\tconst lastPoint = cachedPoints[cachedPoints.length - 1]\n\t\t\t\t\tlastPoint.x = newPoint.x\n\t\t\t\t\tlastPoint.y = newPoint.y\n\t\t\t\t\tlastPoint.z = lastPoint.z ? Math.max(lastPoint.z, newPoint.z) : newPoint.z\n\t\t\t\t\t// Note: we could recompute the line length here, but it's not really necessary\n\t\t\t\t\t// this.currentLineLength = this.getLineLength(newSegments)\n\t\t\t\t} else {\n\t\t\t\t\tthis.currentLineLength += cachedPoints.length\n\t\t\t\t\t\t? Vec.Dist(cachedPoints[cachedPoints.length - 1], newPoint)\n\t\t\t\t\t\t: 0\n\t\t\t\t\tcachedPoints.push(new Vec(newPoint.x, newPoint.y, newPoint.z))\n\t\t\t\t}\n\n\t\t\t\tconst newSegments = segments.slice()\n\t\t\t\tconst newSegment = newSegments[newSegments.length - 1]\n\t\t\t\tnewSegments[newSegments.length - 1] = {\n\t\t\t\t\t...newSegment,\n\t\t\t\t\tpath: b64Vecs.encodePoints(cachedPoints),\n\t\t\t\t}\n\n\t\t\t\tif (this.currentLineLength < STROKE_SIZES[shape.props.size] * 4) {\n\t\t\t\t\tthis.currentLineLength = this.getLineLength(newSegments)\n\t\t\t\t}\n\n\t\t\t\tconst shapePartial: TLShapePartial<DrawableShape> = {\n\t\t\t\t\tid,\n\t\t\t\t\ttype: this.shapeType,\n\t\t\t\t\tprops: {\n\t\t\t\t\t\tsegments: newSegments,\n\t\t\t\t\t},\n\t\t\t\t}\n\n\t\t\t\tif (this.canClose()) {\n\t\t\t\t\t;(shapePartial as TLShapePartial<TLDrawShape>).props!.isClosed = this.getIsClosed(\n\t\t\t\t\t\tnewSegments,\n\t\t\t\t\t\tsize,\n\t\t\t\t\t\tscale\n\t\t\t\t\t)\n\t\t\t\t}\n\n\t\t\t\tthis.editor.updateShapes([shapePartial])\n\n\t\t\t\t// Set a maximum length for the lines array; after 200 points, complete the line.\n\t\t\t\tif (cachedPoints.length > this.util.options.maxPointsPerShape) {\n\t\t\t\t\tthis.editor.updateShapes([{ id, type: this.shapeType, props: { isComplete: true } }])\n\n\t\t\t\t\tconst newShapeId = createShapeId()\n\n\t\t\t\t\tconst props = this.editor.getShape<DrawableShape>(id)!.props\n\n\t\t\t\t\tif (!this.editor.canCreateShapes([newShapeId])) return this.cancel()\n\t\t\t\t\tconst currentPagePoint = inputs.getCurrentPagePoint()\n\n\t\t\t\t\t// Reset cache for the new shape's segment\n\t\t\t\t\tconst initialPoint = new Vec(0, 0, this.isPenOrStylus ? +(z! * 1.25).toFixed() : 0.5)\n\t\t\t\t\tthis.currentSegmentPoints = [initialPoint]\n\n\t\t\t\t\tthis.editor.createShape({\n\t\t\t\t\t\tid: newShapeId,\n\t\t\t\t\t\ttype: this.shapeType,\n\t\t\t\t\t\tx: toFixed(currentPagePoint.x),\n\t\t\t\t\t\ty: toFixed(currentPagePoint.y),\n\t\t\t\t\t\tprops: {\n\t\t\t\t\t\t\tisPen: this.isPenOrStylus,\n\t\t\t\t\t\t\tscale: props.scale,\n\t\t\t\t\t\t\tsegments: [\n\t\t\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\t\ttype: 'free',\n\t\t\t\t\t\t\t\t\tpath: b64Vecs.encodePoints([initialPoint]),\n\t\t\t\t\t\t\t\t},\n\t\t\t\t\t\t\t],\n\t\t\t\t\t\t},\n\t\t\t\t\t})\n\n\t\t\t\t\tconst shape = this.editor.getShape<DrawableShape>(newShapeId)\n\n\t\t\t\t\tif (!shape) {\n\t\t\t\t\t\t// This would only happen if the page is full and no more shapes can be created. The bug would manifest as a crash when we try to clone the shape.\n\t\t\t\t\t\t// todo: handle this type of thing better\n\t\t\t\t\t\treturn this.cancel()\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.initialShape = structuredClone(shape)\n\t\t\t\t\tthis.mergeNextPoint = false\n\t\t\t\t\tthis.lastRecordedPoint = currentPagePoint.clone()\n\t\t\t\t\tthis.currentLineLength = 0\n\t\t\t\t}\n\n\t\t\t\tbreak\n\t\t\t}\n\t\t}\n\t}\n\n\tprivate getLineLength(segments: TLDrawShapeSegment[]) {\n\t\tlet length = 0\n\n\t\tfor (let j = 0; j < segments.length; j++) {\n\t\t\tconst points = b64Vecs.decodePoints(segments[j].path)\n\t\t\tfor (let i = 0; i < points.length - 1; i++) {\n\t\t\t\tlength += Vec.Dist2(points[i], points[i + 1])\n\t\t\t}\n\t\t}\n\n\t\treturn Math.sqrt(length)\n\t}\n\n\toverride onPointerUp() {\n\t\tthis.complete()\n\t}\n\n\toverride onCancel() {\n\t\tthis.cancel()\n\t}\n\n\toverride onComplete() {\n\t\tthis.complete()\n\t}\n\n\toverride onInterrupt() {\n\t\tif (this.editor.inputs.getIsDragging()) {\n\t\t\treturn\n\t\t}\n\n\t\tif (this.markId) {\n\t\t\tthis.editor.bailToMark(this.markId)\n\t\t}\n\t\tthis.cancel()\n\t}\n\n\tcomplete() {\n\t\tconst { initialShape } = this\n\t\tif (!initialShape) return\n\t\tthis.editor.updateShapes([\n\t\t\t{ id: initialShape.id, type: initialShape.type, props: { isComplete: true } },\n\t\t])\n\n\t\tthis.parent.transition('idle')\n\t}\n\n\tcancel() {\n\t\tthis.parent.transition('idle', this.info)\n\t}\n}\n"],
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}