layout/svg/base/src/nsSVGContainerFrame.h

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  15  * The Original Code is the Mozilla SVG project.
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  17  * The Initial Developer of the Original Code is IBM Corporation.
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  36
  37 #ifndef NS_SVGCONTAINERFRAME_H
  38 #define NS_SVGCONTAINERFRAME_H
  39
  40 #include "nsContainerFrame.h"
  41 #include "nsISVGChildFrame.h"
  42 #include "nsIDOMSVGMatrix.h"
  43 #include "nsSVGSVGElement.h"
  44
  45 typedef nsContainerFrame nsSVGContainerFrameBase;
  46
  47 class nsSVGContainerFrame : public nsSVGContainerFrameBase
  48 {
  49   friend nsIFrame* NS_NewSVGContainerFrame(nsIPresShell* aPresShell,
  50                                            nsIContent* aContent,
  51                                            nsStyleContext* aContext);
  52 protected:
  53   nsSVGContainerFrame(nsStyleContext* aContext) :
  54     nsSVGContainerFrameBase(aContext) {}
  55
  56 public:
  57   // Returns the transform to our gfxContext (to device pixels, not CSS px)
  58   virtual already_AddRefed<nsIDOMSVGMatrix> GetCanvasTM() { return nsnull; }
  59
  60   // nsIFrame:
  61   NS_IMETHOD AppendFrames(nsIAtom*        aListName,
  62                           nsIFrame*       aFrameList);
  63   NS_IMETHOD InsertFrames(nsIAtom*        aListName,
  64                           nsIFrame*       aPrevFrame,
  65                           nsIFrame*       aFrameList);
  66   NS_IMETHOD RemoveFrame(nsIAtom*        aListName,
  67                          nsIFrame*       aOldFrame);
  68   NS_IMETHOD Init(nsIContent*      aContent,
  69                   nsIFrame*        aParent,
  70                   nsIFrame*        aPrevInFlow);
  71
  72   virtual PRBool IsFrameOfType(PRUint32 aFlags) const
  73   {
  74     return nsSVGContainerFrameBase::IsFrameOfType(
  75             aFlags & ~(nsIFrame::eSVG | nsIFrame::eSVGContainer));
  76   }
  77 };
  78
  79 class nsSVGDisplayContainerFrame : public nsSVGContainerFrame,
  80                                    public nsISVGChildFrame
  81 {
  82 protected:
  83   nsSVGDisplayContainerFrame(nsStyleContext* aContext) :
  84     nsSVGContainerFrame(aContext) {}
  85
  86 public:
  87   // nsISupports interface:
  88   NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
  89 private:
  90   NS_IMETHOD_(nsrefcnt) AddRef() { return 1; }
  91   NS_IMETHOD_(nsrefcnt) Release() { return 1; }
  92
  93 public:
  94   // nsIFrame:
  95   NS_IMETHOD InsertFrames(nsIAtom*        aListName,
  96                           nsIFrame*       aPrevFrame,
  97                           nsIFrame*       aFrameList);
  98   NS_IMETHOD RemoveFrame(nsIAtom*        aListName,
  99                          nsIFrame*       aOldFrame);
 100   NS_IMETHOD Init(nsIContent*      aContent,
 101                   nsIFrame*        aParent,
 102                   nsIFrame*        aPrevInFlow);
 103
 104   // nsISVGChildFrame interface:
 105   NS_IMETHOD PaintSVG(nsSVGRenderState* aContext,
 106                       const nsIntRect *aDirtyRect);
 107   NS_IMETHOD_(nsIFrame*) GetFrameForPoint(const nsPoint &aPoint);
 108   NS_IMETHOD_(nsRect) GetCoveredRegion();
 109   NS_IMETHOD UpdateCoveredRegion();
 110   NS_IMETHOD InitialUpdate();
 111   virtual void NotifySVGChanged(PRUint32 aFlags);
 112   NS_IMETHOD NotifyRedrawSuspended();
 113   NS_IMETHOD NotifyRedrawUnsuspended();
 114   NS_IMETHOD SetMatrixPropagation(PRBool aPropagate);
 115   virtual PRBool GetMatrixPropagation();
 116   NS_IMETHOD GetBBox(nsIDOMSVGRect **_retval);
 117   NS_IMETHOD_(PRBool) IsDisplayContainer() { return PR_TRUE; }
 118   NS_IMETHOD_(PRBool) HasValidCoveredRect() { return PR_FALSE; }
 119 };
 120
 121 #endif