FloatRect strokeBoundingBox(const Path& path, RenderStyle* style, const RenderObject* object) { // the bbox might grow if the path is stroked. // and CGPathGetBoundingBox doesn't support that, so we'll have // to make an alternative call... // FIXME: since this is mainly used to decide what to repaint, // perhaps it would be sufficient to just outset the fill bbox by // the stroke width - that should be way cheaper and simpler than // what we do here. CGPathRef cgPath = path.platformPath(); CGContextRef context = scratchContext(); CGContextSaveGState(context); CGContextBeginPath(context); CGContextAddPath(context, cgPath); GraphicsContext gc(context); applyStrokeStyleToContext(&gc, style, object); CGContextReplacePathWithStrokedPath(context); if (CGContextIsPathEmpty(context)) { // CGContextReplacePathWithStrokedPath seems to fail to create a path sometimes, this is not well understood. // returning here prevents CG from logging to the console from CGContextGetPathBoundingBox CGContextRestoreGState(context); return FloatRect(); } CGRect box = CGContextGetPathBoundingBox(context); CGContextRestoreGState(context); return FloatRect(box); }
Rect PathCG::GetStrokedBounds(const StrokeOptions &aStrokeOptions, const Matrix &aTransform) const { // 10.7 has CGPathCreateCopyByStrokingPath which we could use // instead of this scratch context business CGContextRef cg = ScratchContext(); CGContextSaveGState(cg); CGContextBeginPath(cg); CGContextAddPath(cg, mPath); SetStrokeOptions(cg, aStrokeOptions); CGContextReplacePathWithStrokedPath(cg); Rect bounds = CGRectToRect(CGContextGetPathBoundingBox(cg)); CGContextRestoreGState(cg); if (!bounds.IsFinite()) { return Rect(); } return aTransform.TransformBounds(bounds); }
bool PathCG::StrokeContainsPoint(const StrokeOptions &aStrokeOptions, const Point &aPoint, const Matrix &aTransform) const { Matrix inverse = aTransform; inverse.Invert(); Point transformedPoint = inverse*aPoint; // We could probably drop the input transform and just transform the point at the caller? CGPoint point = {transformedPoint.x, transformedPoint.y}; CGContextRef cg = ScratchContext(); CGContextSaveGState(cg); CGContextBeginPath(cg); CGContextAddPath(cg, mPath); SetStrokeOptions(cg, aStrokeOptions); CGContextReplacePathWithStrokedPath(cg); CGContextRestoreGState(cg); CGPathRef sPath = CGContextCopyPath(cg); bool inStroke = CGPathContainsPoint(sPath, nullptr, point, false); CGPathRelease(sPath); return inStroke; }
void CanvasRenderingContext2D::stroke() { GraphicsContext* c = drawingContext(); if (!c) return; // FIXME: Do this through platform-independent GraphicsContext API. #if PLATFORM(CG) CGContextBeginPath(c->platformContext()); CGContextAddPath(c->platformContext(), state().m_path.platformPath()); if (!state().m_path.isEmpty()) { float lineWidth = state().m_lineWidth; float inset = -lineWidth / 2; CGRect boundingRect = CGRectInset(CGContextGetPathBoundingBox(c->platformContext()), inset, inset); willDraw(boundingRect); } if (state().m_strokeStyle->gradient()) { // Shading works on the entire clip region, so convert the current path to a clip. c->save(); CGContextReplacePathWithStrokedPath(c->platformContext()); CGContextClip(c->platformContext()); CGContextDrawShading(c->platformContext(), state().m_strokeStyle->gradient()->platformShading()); c->restore(); } else { if (state().m_strokeStyle->pattern()) applyStrokePattern(); CGContextStrokePath(c->platformContext()); } #elif PLATFORM(QT) QPainterPath* path = state().m_path.platformPath(); QPainter* p = static_cast<QPainter*>(c->platformContext()); willDraw(path->controlPointRect()); if (state().m_strokeStyle->gradient()) { p->save(); p->setBrush(*(state().m_strokeStyle->gradient()->platformShading())); p->strokePath(*path, p->pen()); p->restore(); } else { if (state().m_strokeStyle->pattern()) applyStrokePattern(); p->strokePath(*path, p->pen()); } #endif clearPathForDashboardBackwardCompatibilityMode(); }
FloatRect Path::strokeBoundingRect(StrokeStyleApplier* applier) const { CGContextRef context = scratchContext(); CGContextSaveGState(context); CGContextBeginPath(context); CGContextAddPath(context, platformPath()); if (applier) { GraphicsContext graphicsContext(context); applier->strokeStyle(&graphicsContext); } CGContextReplacePathWithStrokedPath(context); CGRect box = CGContextIsPathEmpty(context) ? CGRectZero : CGContextGetPathBoundingBox(context); CGContextRestoreGState(context); return box; }
FX_BOOL CFX_QuartzDeviceDriver::SetClip_PathStroke(const CFX_PathData* pathData, const CFX_AffineMatrix* matrix, const CFX_GraphStateData* graphState ) { SaveState(); CGAffineTransform m = CGAffineTransformIdentity; if (matrix) { m = CGAffineTransformMake(matrix->GetA(), matrix->GetB(), matrix->GetC(), matrix->GetD(), matrix->GetE(), matrix->GetF()); } m = CGAffineTransformConcat(m, _foxitDevice2User); CGContextConcatCTM(_context, m); FX_FLOAT lineWidth = getLineWidth(graphState, m); setStrokeInfo(graphState, 0xFF000000, lineWidth); setPathToContext(pathData); CGContextReplacePathWithStrokedPath(_context); RestoreState(FALSE); CGContextClip(_context); return TRUE; }
void GraphicsContext::strokeRect(const FloatRect& r, float lineWidth) { if (paintingDisabled()) return; CGContextRef context = platformContext(); if (m_state.strokeGradient) { CGContextSaveGState(context); setStrokeThickness(lineWidth); CGContextAddRect(context, r); CGContextReplacePathWithStrokedPath(context); CGContextClip(context); m_state.strokeGradient->paint(this); CGContextRestoreGState(context); return; } if (m_state.strokePattern) applyStrokePattern(); CGContextStrokeRectWithWidth(context, r, lineWidth); }
void GraphicsContext::strokePath(const Path& path) { if (paintingDisabled()) return; CGContextRef context = platformContext(); CGContextBeginPath(context); CGContextAddPath(context, path.platformPath()); if (m_state.strokeGradient) { CGContextSaveGState(context); CGContextReplacePathWithStrokedPath(context); CGContextClip(context); CGContextConcatCTM(context, m_state.strokeGradient->gradientSpaceTransform()); m_state.strokeGradient->paint(this); CGContextRestoreGState(context); return; } if (m_state.strokePattern) applyStrokePattern(); CGContextStrokePath(context); }
void SVGPaintServer::clipToStrokePath(CGContextRef context, const RenderPath*) const { CGContextReplacePathWithStrokedPath(context); CGContextClip(context); }
void CanvasRenderingContext2D::stroke() { GraphicsContext* c = drawingContext(); if (!c) return; c->beginPath(); c->addPath(m_path); if (!m_path.isEmpty()) { // FIXME: This is insufficient, need to use CGContextReplacePathWithStrokedPath to expand to required bounds float lineWidth = state().m_lineWidth; float inset = lineWidth / 2; FloatRect boundingRect = m_path.boundingRect(); boundingRect.inflate(inset); willDraw(boundingRect); } // FIXME: Do this through platform-independent GraphicsContext API. #if PLATFORM(CG) if (state().m_strokeStyle->canvasGradient()) { // Shading works on the entire clip region, so convert the current path to a clip. c->save(); CGContextReplacePathWithStrokedPath(c->platformContext()); CGContextClip(c->platformContext()); CGContextDrawShading(c->platformContext(), state().m_strokeStyle->canvasGradient()->gradient().platformGradient()); c->restore(); } else { if (state().m_strokeStyle->pattern()) applyStrokePattern(); CGContextStrokePath(c->platformContext()); } #elif PLATFORM(QT) QPainterPath* path = m_path.platformPath(); QPainter* p = static_cast<QPainter*>(c->platformContext()); if (state().m_strokeStyle->canvasGradient()) { p->save(); p->setBrush(*(state().m_strokeStyle->canvasGradient()->gradient().platformGradient())); p->strokePath(*path, p->pen()); p->restore(); } else { if (state().m_strokeStyle->pattern()) applyStrokePattern(); p->strokePath(*path, p->pen()); } #elif PLATFORM(CAIRO) && !PLATFORM(BAL) cairo_t* cr = c->platformContext(); cairo_save(cr); if (state().m_strokeStyle->canvasGradient()) { cairo_set_source(cr, state().m_strokeStyle->canvasGradient()->gradient().platformGradient()); c->addPath(m_path); cairo_stroke(cr); } else { if (state().m_strokeStyle->pattern()) applyStrokePattern(); c->addPath(m_path); cairo_stroke(cr); } cairo_restore(cr); #elif PLATFORM(BAL) //FIXME notImplemented(); #endif #if ENABLE(DASHBOARD_SUPPORT) clearPathForDashboardBackwardCompatibilityMode(); #endif }