gecko/layout/svg/base/src/nsSVGContainerFrame.h

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 * The Original Code is the Mozilla SVG project.
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#ifndef NS_SVGCONTAINERFRAME_H
#define NS_SVGCONTAINERFRAME_H

#include "nsContainerFrame.h"
#include "nsISVGChildFrame.h"
#include "nsSVGSVGElement.h"
#include "gfxRect.h"
#include "gfxMatrix.h"

class nsRenderingContext;

typedef nsContainerFrame nsSVGContainerFrameBase;

class nsSVGContainerFrame : public nsSVGContainerFrameBase
{
  friend nsIFrame* NS_NewSVGContainerFrame(nsIPresShell* aPresShell,
                                           nsStyleContext* aContext);
protected:
  nsSVGContainerFrame(nsStyleContext* aContext) :
    nsSVGContainerFrameBase(aContext) {}

public:
  NS_DECL_QUERYFRAME_TARGET(nsSVGContainerFrame)
  NS_DECL_QUERYFRAME
  NS_DECL_FRAMEARENA_HELPERS

  // Returns the transform to our gfxContext (to device pixels, not CSS px)
  virtual gfxMatrix GetCanvasTM() { return gfxMatrix(); }

  // nsIFrame:
  NS_IMETHOD AppendFrames(ChildListID     aListID,
                          nsFrameList&    aFrameList);
  NS_IMETHOD InsertFrames(ChildListID     aListID,
                          nsIFrame*       aPrevFrame,
                          nsFrameList&    aFrameList);
  NS_IMETHOD RemoveFrame(ChildListID     aListID,
                         nsIFrame*       aOldFrame);

  virtual bool IsFrameOfType(PRUint32 aFlags) const
  {
    return nsSVGContainerFrameBase::IsFrameOfType(
            aFlags & ~(nsIFrame::eSVG | nsIFrame::eSVGContainer));
  }
};

class nsSVGDisplayContainerFrame : public nsSVGContainerFrame,
                                   public nsISVGChildFrame
{
protected:
  nsSVGDisplayContainerFrame(nsStyleContext* aContext) :
    nsSVGContainerFrame(aContext) {}

public:
  NS_DECL_QUERYFRAME_TARGET(nsSVGDisplayContainerFrame)
  NS_DECL_QUERYFRAME
  NS_DECL_FRAMEARENA_HELPERS

  // nsIFrame:
  NS_IMETHOD InsertFrames(ChildListID     aListID,
                          nsIFrame*       aPrevFrame,
                          nsFrameList&    aFrameList);
  NS_IMETHOD RemoveFrame(ChildListID     aListID,
                         nsIFrame*       aOldFrame);
  NS_IMETHOD Init(nsIContent*      aContent,
                  nsIFrame*        aParent,
                  nsIFrame*        aPrevInFlow);

  // nsISVGChildFrame interface:
  NS_IMETHOD PaintSVG(nsRenderingContext* aContext,
                      const nsIntRect *aDirtyRect);
  NS_IMETHOD_(nsIFrame*) GetFrameForPoint(const nsPoint &aPoint);
  NS_IMETHOD_(nsRect) GetCoveredRegion();
  NS_IMETHOD UpdateCoveredRegion();
  NS_IMETHOD InitialUpdate();
  virtual void NotifySVGChanged(PRUint32 aFlags);
  virtual void NotifyRedrawSuspended();
  virtual void NotifyRedrawUnsuspended();
  virtual gfxRect GetBBoxContribution(const gfxMatrix &aToBBoxUserspace,
                                      PRUint32 aFlags);
  NS_IMETHOD_(bool) IsDisplayContainer() { return true; }
  NS_IMETHOD_(bool) HasValidCoveredRect() { return false; }
};

#endif