зеркало из https://github.com/mozilla/gecko-dev.git
152 строки
4.7 KiB
C++
152 строки
4.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef __NS_SVGPATHGEOMETRYFRAME_H__
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#define __NS_SVGPATHGEOMETRYFRAME_H__
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#include "mozilla/Attributes.h"
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#include "gfxMatrix.h"
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#include "gfxRect.h"
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#include "nsFrame.h"
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#include "nsISVGChildFrame.h"
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#include "nsLiteralString.h"
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#include "nsQueryFrame.h"
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#include "nsSVGUtils.h"
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namespace mozilla {
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namespace gfx {
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class DrawTarget;
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}
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}
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class gfxContext;
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class nsDisplaySVGPathGeometry;
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class nsIAtom;
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class nsIFrame;
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class nsIPresShell;
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class nsStyleContext;
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class nsSVGMarkerFrame;
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class nsSVGMarkerProperty;
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struct nsPoint;
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struct nsRect;
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struct nsIntRect;
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typedef nsFrame nsSVGPathGeometryFrameBase;
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class nsSVGPathGeometryFrame : public nsSVGPathGeometryFrameBase,
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public nsISVGChildFrame
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{
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typedef mozilla::gfx::DrawTarget DrawTarget;
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friend nsIFrame*
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NS_NewSVGPathGeometryFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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friend class nsDisplaySVGPathGeometry;
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protected:
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explicit nsSVGPathGeometryFrame(nsStyleContext* aContext)
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: nsSVGPathGeometryFrameBase(aContext)
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{
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AddStateBits(NS_FRAME_SVG_LAYOUT | NS_FRAME_MAY_BE_TRANSFORMED);
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}
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public:
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NS_DECL_QUERYFRAME_TARGET(nsSVGPathGeometryFrame)
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS
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// nsIFrame interface:
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virtual void Init(nsIContent* aContent,
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nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) override;
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virtual bool IsFrameOfType(uint32_t aFlags) const override
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{
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return nsSVGPathGeometryFrameBase::IsFrameOfType(aFlags & ~(nsIFrame::eSVG | nsIFrame::eSVGGeometry));
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}
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virtual nsresult AttributeChanged(int32_t aNameSpaceID,
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nsIAtom* aAttribute,
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int32_t aModType) override;
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virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext) override;
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/**
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* Get the "type" of the frame
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*
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* @see nsGkAtoms::svgPathGeometryFrame
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*/
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virtual nsIAtom* GetType() const override;
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virtual bool IsSVGTransformed(Matrix *aOwnTransforms = nullptr,
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Matrix *aFromParentTransforms = nullptr) const override;
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#ifdef DEBUG_FRAME_DUMP
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virtual nsresult GetFrameName(nsAString& aResult) const override
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{
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return MakeFrameName(NS_LITERAL_STRING("SVGPathGeometry"), aResult);
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}
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#endif
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists) override;
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// nsSVGPathGeometryFrame methods
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gfxMatrix GetCanvasTM();
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protected:
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// nsISVGChildFrame interface:
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virtual nsresult PaintSVG(gfxContext& aContext,
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const gfxMatrix& aTransform,
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const nsIntRect* aDirtyRect = nullptr) override;
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virtual nsIFrame* GetFrameForPoint(const gfxPoint& aPoint) override;
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virtual nsRect GetCoveredRegion() override;
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virtual void ReflowSVG() override;
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virtual void NotifySVGChanged(uint32_t aFlags) override;
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virtual SVGBBox GetBBoxContribution(const Matrix &aToBBoxUserspace,
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uint32_t aFlags) override;
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virtual bool IsDisplayContainer() override { return false; }
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/**
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* This function returns a set of bit flags indicating which parts of the
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* element (fill, stroke, bounds) should intercept pointer events. It takes
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* into account the type of element and the value of the 'pointer-events'
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* property on the element.
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*/
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virtual uint16_t GetHitTestFlags();
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private:
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enum { eRenderFill = 1, eRenderStroke = 2 };
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void Render(gfxContext* aContext, uint32_t aRenderComponents,
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const gfxMatrix& aTransform);
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/**
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* @param aMatrix The transform that must be multiplied onto aContext to
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* establish this frame's SVG user space.
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*/
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void PaintMarkers(gfxContext& aContext, const gfxMatrix& aMatrix);
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struct MarkerProperties {
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nsSVGMarkerProperty* mMarkerStart;
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nsSVGMarkerProperty* mMarkerMid;
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nsSVGMarkerProperty* mMarkerEnd;
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bool MarkersExist() const {
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return mMarkerStart || mMarkerMid || mMarkerEnd;
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}
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nsSVGMarkerFrame *GetMarkerStartFrame();
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nsSVGMarkerFrame *GetMarkerMidFrame();
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nsSVGMarkerFrame *GetMarkerEndFrame();
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};
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/**
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* @param aFrame should be the first continuation
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*/
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static MarkerProperties GetMarkerProperties(nsSVGPathGeometryFrame *aFrame);
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};
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#endif // __NS_SVGPATHGEOMETRYFRAME_H__
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