gecko/layout/svg/nsSVGPathGeometryFrame.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2012-05-21 04:12:37 -07:00
/* 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 "nsRect.h"
#include "nsSVGGeometryFrame.h"
#include "nsSVGUtils.h"
class gfxContext;
class nsDisplaySVGPathGeometry;
class nsIAtom;
class nsIFrame;
class nsIPresShell;
class nsRenderingContext;
class nsStyleContext;
class nsSVGMarkerFrame;
class nsSVGMarkerProperty;
struct nsPoint;
typedef nsSVGGeometryFrame 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_MAY_BE_TRANSFORMED);
}
public:
NS_DECL_QUERYFRAME
NS_DECL_FRAMEARENA_HELPERS
// nsIFrame interface:
NS_IMETHOD AttributeChanged(int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType);
virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext);
/**
* Get the "type" of the frame
*
* @see nsGkAtoms::svgPathGeometryFrame
*/
virtual nsIAtom* GetType() const;
virtual bool IsSVGTransformed(gfxMatrix *aOwnTransforms = nullptr,
gfxMatrix *aFromParentTransforms = nullptr) const;
#ifdef DEBUG
NS_IMETHOD GetFrameName(nsAString& aResult) const
{
return MakeFrameName(NS_LITERAL_STRING("SVGPathGeometry"), aResult);
}
#endif
NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists);
// nsSVGGeometryFrame methods
gfxMatrix GetCanvasTM(uint32_t aFor);
protected:
// nsISVGChildFrame interface:
NS_IMETHOD PaintSVG(nsRenderingContext *aContext,
const nsIntRect *aDirtyRect);
NS_IMETHOD_(nsIFrame*) GetFrameForPoint(const nsPoint &aPoint) MOZ_OVERRIDE;
NS_IMETHOD_(nsRect) GetCoveredRegion() MOZ_OVERRIDE;
virtual void ReflowSVG() MOZ_OVERRIDE;
virtual void NotifySVGChanged(uint32_t aFlags) MOZ_OVERRIDE;
virtual SVGBBox GetBBoxContribution(const gfxMatrix &aToBBoxUserspace,
uint32_t aFlags) MOZ_OVERRIDE;
NS_IMETHOD_(bool) IsDisplayContainer() MOZ_OVERRIDE { return false; }
protected:
void GeneratePath(gfxContext *aContext, const gfxMatrix &aTransform);
private:
void Render(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__