layout/generic/nsFirstLetterFrame.h

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  37
  38 #ifndef nsFirstLetterFrame_h__
  39 #define nsFirstLetterFrame_h__
  40
  41 /* rendering object for CSS :first-letter pseudo-element */
  42
  43 #include "nsHTMLContainerFrame.h"
  44
  45 #define nsFirstLetterFrameSuper nsHTMLContainerFrame
  46
  47 class nsFirstLetterFrame : public nsFirstLetterFrameSuper {
  48 public:
  49   nsFirstLetterFrame(nsStyleContext* aContext) : nsHTMLContainerFrame(aContext) {}
  50
  51   NS_IMETHOD Init(nsIContent*      aContent,
  52                   nsIFrame*        aParent,
  53                   nsIFrame*        aPrevInFlow);
  54   NS_IMETHOD SetInitialChildList(nsIAtom*        aListName,
  55                                  nsFrameList&    aChildList);
  56 #ifdef NS_DEBUG
  57   NS_IMETHOD GetFrameName(nsAString& aResult) const;
  58 #endif
  59   virtual nsIAtom* GetType() const;
  60
  61   virtual PRBool IsFrameOfType(PRUint32 aFlags) const
  62   {
  63     if (!GetStyleDisplay()->IsFloating())
  64       aFlags = aFlags & ~(nsIFrame::eLineParticipant);
  65     return nsFirstLetterFrameSuper::IsFrameOfType(aFlags &
  66       ~(nsIFrame::eBidiInlineContainer));
  67   }
  68
  69   virtual nscoord GetMinWidth(nsIRenderingContext *aRenderingContext);
  70   virtual nscoord GetPrefWidth(nsIRenderingContext *aRenderingContext);
  71   virtual void AddInlineMinWidth(nsIRenderingContext *aRenderingContext,
  72                                  InlineMinWidthData *aData);
  73   virtual void AddInlinePrefWidth(nsIRenderingContext *aRenderingContext,
  74                                   InlinePrefWidthData *aData);
  75   virtual nsSize ComputeSize(nsIRenderingContext *aRenderingContext,
  76                              nsSize aCBSize, nscoord aAvailableWidth,
  77                              nsSize aMargin, nsSize aBorder, nsSize aPadding,
  78                              PRBool aShrinkWrap);
  79   NS_IMETHOD Reflow(nsPresContext*          aPresContext,
  80                     nsHTMLReflowMetrics&     aDesiredSize,
  81                     const nsHTMLReflowState& aReflowState,
  82                     nsReflowStatus&          aStatus);
  83
  84   virtual PRBool CanContinueTextRun() const;
  85
  86 //override of nsFrame method
  87   NS_IMETHOD GetChildFrameContainingOffset(PRInt32 inContentOffset,
  88                                            PRBool inHint,
  89                                            PRInt32* outFrameContentOffset,
  90                                            nsIFrame **outChildFrame);
  91
  92   nscoord GetFirstLetterBaseline() const { return mBaseline; }
  93
  94 protected:
  95   nscoord mBaseline;
  96
  97   virtual PRIntn GetSkipSides() const;
  98
  99   void DrainOverflowFrames(nsPresContext* aPresContext);
 100 };
 101
 102 #endif /* nsFirstLetterFrame_h__ */