layout/generic/nsPageFrame.h

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  37 #ifndef nsPageFrame_h___
  38 #define nsPageFrame_h___
  39
  40 #include "nsContainerFrame.h"
  41 #include "nsLeafFrame.h"
  42
  43 class nsSharedPageData;
  44
  45 // Page frame class used by the simple page sequence frame
  46 class nsPageFrame : public nsContainerFrame {
  47
  48 public:
  49   friend nsIFrame* NS_NewPageFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
  50
  51   NS_IMETHOD  Reflow(nsPresContext*      aPresContext,
  52                      nsHTMLReflowMetrics& aDesiredSize,
  53                      const nsHTMLReflowState& aMaxSize,
  54                      nsReflowStatus&      aStatus);
  55
  56   NS_IMETHOD BuildDisplayList(nsDisplayListBuilder*   aBuilder,
  57                               const nsRect&           aDirtyRect,
  58                               const nsDisplayListSet& aLists);
  59
  60   virtual PRBool IsContainingBlock() const;
  61
  62   /**
  63    * Get the "type" of the frame
  64    *
  65    * @see nsGkAtoms::pageFrame
  66    */
  67   virtual nsIAtom* GetType() const;
  68
  69 #ifdef NS_DEBUG
  70   NS_IMETHOD  GetFrameName(nsAString& aResult) const;
  71 #endif
  72
  73   //////////////////
  74   // For Printing
  75   //////////////////
  76
  77   // Tell the page which page number it is out of how many
  78   virtual void  SetPageNumInfo(PRInt32 aPageNumber, PRInt32 aTotalPages);
  79
  80   virtual void SetSharedPageData(nsSharedPageData* aPD);
  81
  82   void PaintPrintPreviewBackground(nsIRenderingContext& aRenderingContext,
  83                                    nsPoint aPt);
  84   void PaintHeaderFooter(nsIRenderingContext& aRenderingContext,
  85                          nsPoint aPt);
  86   void PaintPageContent(nsIRenderingContext& aRenderingContext,
  87                         const nsRect&        aDirtyRect,
  88                         nsPoint              aPt);
  89
  90 protected:
  91   nsPageFrame(nsStyleContext* aContext);
  92   virtual ~nsPageFrame();
  93
  94   typedef enum {
  95     eHeader,
  96     eFooter
  97   } nsHeaderFooterEnum;
  98
  99   nscoord GetXPosition(nsIRenderingContext& aRenderingContext,
 100                        const nsRect&        aRect,
 101                        PRInt32              aJust,
 102                        const nsString&      aStr);
 103
 104   void DrawHeaderFooter(nsIRenderingContext& aRenderingContext,
 105                         nsHeaderFooterEnum   aHeaderFooter,
 106                         PRInt32              aJust,
 107                         const nsString&      sStr,
 108                         const nsRect&        aRect,
 109                         nscoord              aHeight,
 110                         nscoord              aAscent,
 111                         nscoord              aWidth);
 112
 113   void DrawHeaderFooter(nsIRenderingContext& aRenderingContext,
 114                         nsHeaderFooterEnum   aHeaderFooter,
 115                         const nsString&      aStrLeft,
 116                         const nsString&      aStrRight,
 117                         const nsString&      aStrCenter,
 118                         const nsRect&        aRect,
 119                         nscoord              aAscent,
 120                         nscoord              aHeight);
 121
 122   void ProcessSpecialCodes(const nsString& aStr, nsString& aNewStr);
 123
 124   PRInt32     mPageNum;
 125   PRInt32     mTotNumPages;
 126
 127   nsSharedPageData* mPD;
 128 };
 129
 130
 131 class nsPageBreakFrame : public nsLeafFrame {
 132
 133   nsPageBreakFrame(nsStyleContext* aContext);
 134   ~nsPageBreakFrame();
 135
 136   NS_IMETHOD Reflow(nsPresContext*          aPresContext,
 137                     nsHTMLReflowMetrics&     aDesiredSize,
 138                     const nsHTMLReflowState& aReflowState,
 139                     nsReflowStatus&          aStatus);
 140
 141   virtual nsIAtom* GetType() const;
 142
 143 protected:
 144
 145   virtual nscoord GetIntrinsicWidth();
 146   virtual nscoord GetIntrinsicHeight();
 147
 148     PRBool mHaveReflowed;
 149
 150     friend nsIFrame* NS_NewPageBreakFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
 151 };
 152
 153 #endif /* nsPageFrame_h___ */
 154