diff -r 000000000000 -r 6474c204b198 layout/svg/nsSVGPathGeometryFrame.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/layout/svg/nsSVGPathGeometryFrame.h Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,141 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef __NS_SVGPATHGEOMETRYFRAME_H__ +#define __NS_SVGPATHGEOMETRYFRAME_H__ + +#include "mozilla/Attributes.h" +#include "gfxMatrix.h" +#include "gfxRect.h" +#include "nsFrame.h" +#include "nsISVGChildFrame.h" +#include "nsLiteralString.h" +#include "nsQueryFrame.h" +#include "nsSVGUtils.h" + +class gfxContext; +class nsDisplaySVGPathGeometry; +class nsIAtom; +class nsIFrame; +class nsIPresShell; +class nsRenderingContext; +class nsStyleContext; +class nsSVGMarkerFrame; +class nsSVGMarkerProperty; + +struct nsPoint; +struct nsRect; +struct nsIntRect; + +typedef nsFrame nsSVGPathGeometryFrameBase; + +class nsSVGPathGeometryFrame : public nsSVGPathGeometryFrameBase, + public nsISVGChildFrame +{ + friend nsIFrame* + NS_NewSVGPathGeometryFrame(nsIPresShell* aPresShell, nsStyleContext* aContext); + + friend class nsDisplaySVGPathGeometry; + +protected: + nsSVGPathGeometryFrame(nsStyleContext* aContext) + : nsSVGPathGeometryFrameBase(aContext) + { + AddStateBits(NS_FRAME_SVG_LAYOUT | NS_FRAME_MAY_BE_TRANSFORMED); + } + +public: + NS_DECL_QUERYFRAME_TARGET(nsSVGPathGeometryFrame) + NS_DECL_QUERYFRAME + NS_DECL_FRAMEARENA_HELPERS + + // nsIFrame interface: + virtual void Init(nsIContent* aContent, + nsIFrame* aParent, + nsIFrame* aPrevInFlow) MOZ_OVERRIDE; + + virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE + { + return nsSVGPathGeometryFrameBase::IsFrameOfType(aFlags & ~(nsIFrame::eSVG | nsIFrame::eSVGGeometry)); + } + + virtual nsresult AttributeChanged(int32_t aNameSpaceID, + nsIAtom* aAttribute, + int32_t aModType) MOZ_OVERRIDE; + + virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext) MOZ_OVERRIDE; + + /** + * Get the "type" of the frame + * + * @see nsGkAtoms::svgPathGeometryFrame + */ + virtual nsIAtom* GetType() const MOZ_OVERRIDE; + + virtual bool IsSVGTransformed(Matrix *aOwnTransforms = nullptr, + Matrix *aFromParentTransforms = nullptr) const MOZ_OVERRIDE; + +#ifdef DEBUG_FRAME_DUMP + virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE + { + return MakeFrameName(NS_LITERAL_STRING("SVGPathGeometry"), aResult); + } +#endif + + virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder, + const nsRect& aDirtyRect, + const nsDisplayListSet& aLists) MOZ_OVERRIDE; + + // nsSVGPathGeometryFrame methods + gfxMatrix GetCanvasTM(uint32_t aFor, + nsIFrame* aTransformRoot = nullptr); +protected: + // nsISVGChildFrame interface: + virtual nsresult PaintSVG(nsRenderingContext *aContext, + const nsIntRect *aDirtyRect, + nsIFrame* aTransformRoot = nullptr) MOZ_OVERRIDE; + virtual nsIFrame* GetFrameForPoint(const nsPoint &aPoint) MOZ_OVERRIDE; + virtual nsRect GetCoveredRegion() MOZ_OVERRIDE; + virtual void ReflowSVG() MOZ_OVERRIDE; + virtual void NotifySVGChanged(uint32_t aFlags) MOZ_OVERRIDE; + virtual SVGBBox GetBBoxContribution(const Matrix &aToBBoxUserspace, + uint32_t aFlags) MOZ_OVERRIDE; + virtual bool IsDisplayContainer() MOZ_OVERRIDE { return false; } + + void GeneratePath(gfxContext *aContext, const Matrix &aTransform); + /** + * This function returns a set of bit flags indicating which parts of the + * element (fill, stroke, bounds) should intercept pointer events. It takes + * into account the type of element and the value of the 'pointer-events' + * property on the element. + */ + virtual uint16_t GetHitTestFlags(); +private: + enum { eRenderFill = 1, eRenderStroke = 2 }; + void Render(nsRenderingContext *aContext, uint32_t aRenderComponents, + nsIFrame* aTransformRoot); + void PaintMarkers(nsRenderingContext *aContext); + + struct MarkerProperties { + nsSVGMarkerProperty* mMarkerStart; + nsSVGMarkerProperty* mMarkerMid; + nsSVGMarkerProperty* mMarkerEnd; + + bool MarkersExist() const { + return mMarkerStart || mMarkerMid || mMarkerEnd; + } + + nsSVGMarkerFrame *GetMarkerStartFrame(); + nsSVGMarkerFrame *GetMarkerMidFrame(); + nsSVGMarkerFrame *GetMarkerEndFrame(); + }; + + /** + * @param aFrame should be the first continuation + */ + static MarkerProperties GetMarkerProperties(nsSVGPathGeometryFrame *aFrame); +}; + +#endif // __NS_SVGPATHGEOMETRYFRAME_H__