gecko-dev/layout/generic/nsPageFrame.h

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#ifndef nsPageFrame_h___
#define nsPageFrame_h___

#include "nsContainerFrame.h"
#include "nsIPrintOptions.h"

class nsSharedPageData;

// Page frame class used by the simple page sequence frame
class nsPageFrame : public nsContainerFrame {

public:
  friend nsresult NS_NewPageFrame(nsIPresShell* aPresShell, nsIFrame** aResult);

  // nsIFrame
  NS_IMETHOD  SetInitialChildList(nsIPresContext* aPresContext,
                                  nsIAtom*        aListName,
                                  nsIFrame*       aChildList);

  NS_IMETHOD  Reflow(nsIPresContext*      aPresContext,
                     nsHTMLReflowMetrics& aDesiredSize,
                     const nsHTMLReflowState& aMaxSize,
                     nsReflowStatus&      aStatus);

  NS_IMETHOD  Paint(nsIPresContext*      aPresContext,
                    nsIRenderingContext& aRenderingContext,
                    const nsRect&        aDirtyRect,
                    nsFramePaintLayer    aWhichLayer,
                    PRUint32             aFlags = 0);

  NS_IMETHOD IsPercentageBase(PRBool& aBase) const;

  /**
   * Get the "type" of the frame
   *
   * @see nsLayoutAtoms::pageFrame
   */
  NS_IMETHOD GetFrameType(nsIAtom** aType) const;
  
#ifdef NS_DEBUG
  // Debugging
  NS_IMETHOD  GetFrameName(nsAString& aResult) const;
  void SetDebugFD(FILE* aFD) { mDebugFD = aFD; }
  FILE * mDebugFD;
#endif

  //////////////////
  // For Printing
  //////////////////

  // Tell the page which page number it is out of how many
  virtual void  SetPageNumInfo(PRInt32 aPageNumber, PRInt32 aTotalPages);

  virtual void  SuppressHeadersAndFooters(PRBool aDoSup) { mSupressHF = aDoSup; }
  virtual void  SetClipRect(nsRect* aClipRect)           { mClipRect = *aClipRect; }

  virtual void SetSharedPageData(nsSharedPageData* aPD) { mPD = aPD; }

protected:
  nsPageFrame();
  virtual ~nsPageFrame();

  typedef enum {
    eHeader,
    eFooter
  } nsHeaderFooterEnum;

  nscoord GetXPosition(nsIRenderingContext& aRenderingContext, 
                       const nsRect&        aRect, 
                       PRInt32              aJust,
                       const nsString&      aStr);

  void DrawHeaderFooter(nsIRenderingContext& aRenderingContext,
                        nsIFrame *           aFrame,
                        nsHeaderFooterEnum   aHeaderFooter,
                        PRInt32              aJust,
                        const nsString&      sStr,
                        const nsRect&        aRect,
                        nscoord              aHeight,
                        nscoord              aAscent,
                        nscoord              aWidth);

  void DrawHeaderFooter(nsIRenderingContext& aRenderingContext,
                        nsIFrame *           aFrame,
                        nsHeaderFooterEnum   aHeaderFooter,
                        PRInt32              aJust,
                        const nsString&      aStr1,
                        const nsString&      aStr2,
                        const nsString&      aStr3,
                        const nsRect&        aRect,
                        nscoord              aAscent,
                        nscoord              aHeight);

  void ProcessSpecialCodes(const nsString& aStr, nsString& aNewStr);

  nsCOMPtr<nsIPrintOptions> mPrintOptions;
  PRInt32     mPageNum;
  PRInt32     mTotNumPages;
  nsMargin    mMargin;

  PRPackedBool mSupressHF;
  nsRect       mClipRect;

  nsSharedPageData* mPD;

private:
  void DrawBackground(nsIPresContext* aPresContext,
                      nsIRenderingContext& aRenderingContext,
                      const nsRect&  aDirtyRect);
};

#endif /* nsPageFrame_h___ */