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

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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * License.
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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 "nsSVGUtils.h"
#include "nsIDOMSVGMatrix.h"
#include "nsSVGCoordCtxProvider.h"

typedef nsContainerFrame nsSVGContainerFrameBase;

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

protected:
  virtual PRBool IsFrameOfType(PRUint32 aFlags) const;
  NS_IMETHOD InitSVG();
  
private:
  NS_IMETHOD_(nsrefcnt) AddRef() { return NS_OK; }
  NS_IMETHOD_(nsrefcnt) Release() { return NS_OK; }  

public:
  nsSVGContainerFrame(nsStyleContext* aContext) :
    nsSVGContainerFrameBase(aContext) {}

  // nsIFrame:
  NS_IMETHOD AppendFrames(nsIAtom*        aListName,
                          nsIFrame*       aFrameList);
  NS_IMETHOD InsertFrames(nsIAtom*        aListName,
                          nsIFrame*       aPrevFrame,
                          nsIFrame*       aFrameList);
  NS_IMETHOD RemoveFrame(nsIAtom*        aListName,
                         nsIFrame*       aOldFrame);
  NS_IMETHOD Init(nsIContent*      aContent,
                  nsIFrame*        aParent,
                  nsIFrame*        aPrevInFlow);

  virtual already_AddRefed<nsIDOMSVGMatrix> GetCanvasTM() { return nsnull; }
  virtual already_AddRefed<nsSVGCoordCtxProvider> GetCoordContextProvider();
};

class nsSVGDisplayContainerFrame : public nsSVGContainerFrame,
                                   public nsISVGChildFrame
{
protected:
  NS_IMETHOD InitSVG();

public:
  nsSVGDisplayContainerFrame(nsStyleContext* aContext) :
    nsSVGContainerFrame(aContext) {}

   // nsISupports interface:
  NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);

  // nsIFrame:
  NS_IMETHOD InsertFrames(nsIAtom*        aListName,
                          nsIFrame*       aPrevFrame,
                          nsIFrame*       aFrameList);
  NS_IMETHOD RemoveFrame(nsIAtom*        aListName,
                         nsIFrame*       aOldFrame);

  // nsISVGChildFrame interface:
  NS_IMETHOD PaintSVG(nsISVGRendererCanvas* canvas);
  NS_IMETHOD GetFrameForPointSVG(float x, float y, nsIFrame** hit);  
  NS_IMETHOD_(nsRect) GetCoveredRegion();
  NS_IMETHOD UpdateCoveredRegion();
  NS_IMETHOD InitialUpdate();
  NS_IMETHOD NotifyCanvasTMChanged(PRBool suppressInvalidation);
  NS_IMETHOD NotifyRedrawSuspended();
  NS_IMETHOD NotifyRedrawUnsuspended();
  NS_IMETHOD SetMatrixPropagation(PRBool aPropagate) { return NS_ERROR_FAILURE; }
  NS_IMETHOD SetOverrideCTM(nsIDOMSVGMatrix *aCTM) { return NS_ERROR_FAILURE; }
  NS_IMETHOD GetBBox(nsIDOMSVGRect **_retval);
};

#endif