gecko/layout/generic/nsSimplePageSequence.h
Benjamin Smedberg 24e7cb1f78 Bug 396185 - Make nsIFrame derivatives and helper abstract classes use a different dynamic-cast system than nsISupports:
* we know all types frames may be cast to at compile time, so instead of extensible GUID IIDs, use a big enum (see nsQueryFrame::FrameIID)
* eliminate all vestiges of refcounting, since frames aren't refcounted

Some frames (SVG frames in particular) still implement nsISupports-derived interfaces, for example nsISVGValue. There is a FrameIID for nsISVGValue that lets you go from a frame to the XPCOM interface, but you can't query back.

r+sr=roc

nsITextControlFrame didn't have an IID the first time around, but this wasn't a compile error because nsITextControlFrame::kFrameIID inherited from nsIFormControlFrame::kFrameIID. I've added a static analysis pass to verify the correct behavior, since I can't figure out a way to make the compiler do it.

--HG--
extra : rebase_source : 4894a2ca0278e2ab92f27459db77165f8348cf41
2009-01-12 14:20:59 -05:00

178 lines
6.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
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*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
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* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
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*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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#ifndef nsSimplePageSequence_h___
#define nsSimplePageSequence_h___
#include "nsIPageSequenceFrame.h"
#include "nsContainerFrame.h"
#include "nsIPrintSettings.h"
#include "nsIPrintOptions.h"
#include "nsIDateTimeFormat.h"
//-----------------------------------------------
// This class maintains all the data that
// is used by all the page frame
// It lives while the nsSimplePageSequenceFrame lives
class nsSharedPageData {
public:
nsSharedPageData();
~nsSharedPageData();
PRUnichar * mDateTimeStr;
nsFont * mHeadFootFont;
PRUnichar * mPageNumFormat;
PRUnichar * mPageNumAndTotalsFormat;
PRUnichar * mDocTitle;
PRUnichar * mDocURL;
nsSize mReflowSize;
nsMargin mReflowMargin;
// shadow of page in PrintPreview; drawn around bottom and right edges
nsSize mShadowSize;
// Extra Margin between the device area and the edge of the page;
// approximates unprintable area
nsMargin mExtraMargin;
// Margin for headers and footers; it defaults to 4/100 of an inch on UNIX
// and 0 elsewhere; I think it has to do with some inconsistency in page size
// computations
nsMargin mEdgePaperMargin;
nsCOMPtr<nsIPrintSettings> mPrintSettings;
nsCOMPtr<nsIPrintOptions> mPrintOptions;
nscoord mPageContentXMost; // xmost size from Reflow(width)
nscoord mPageContentSize; // constrained size (width)
};
// Simple page sequence frame class. Used when we're in paginated mode
class nsSimplePageSequenceFrame : public nsContainerFrame,
public nsIPageSequenceFrame {
public:
friend nsIFrame* NS_NewSimplePageSequenceFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
NS_DECL_QUERYFRAME
// nsIFrame
NS_IMETHOD Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aMaxSize,
nsReflowStatus& aStatus);
NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists);
// nsIPageSequenceFrame
NS_IMETHOD SetPageNo(PRInt32 aPageNo) { return NS_OK;}
NS_IMETHOD SetSelectionHeight(nscoord aYOffset, nscoord aHeight) { mYSelOffset = aYOffset; mSelectionHeight = aHeight; return NS_OK; }
NS_IMETHOD SetTotalNumPages(PRInt32 aTotal) { mTotalPages = aTotal; return NS_OK; }
// Gets the dead space (the gray area) around the Print Preview Page
NS_IMETHOD GetDeadSpaceValue(nscoord* aValue) { *aValue = NS_INCHES_TO_TWIPS(0.25); return NS_OK; }
// For Shrink To Fit
NS_IMETHOD GetSTFPercent(float& aSTFPercent);
// Async Printing
NS_IMETHOD StartPrint(nsPresContext* aPresContext,
nsIPrintSettings* aPrintSettings,
PRUnichar* aDocTitle,
PRUnichar* aDocURL);
NS_IMETHOD PrintNextPage();
NS_IMETHOD GetCurrentPageNum(PRInt32* aPageNum);
NS_IMETHOD GetNumPages(PRInt32* aNumPages);
NS_IMETHOD IsDoingPrintRange(PRBool* aDoing);
NS_IMETHOD GetPrintRange(PRInt32* aFromPage, PRInt32* aToPage);
NS_IMETHOD DoPageEnd();
/**
* Get the "type" of the frame
*
* @see nsGkAtoms::sequenceFrame
*/
virtual nsIAtom* GetType() const;
#ifdef NS_DEBUG
NS_IMETHOD GetFrameName(nsAString& aResult) const;
#endif
void PaintPageSequence(nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsPoint aPt);
protected:
nsSimplePageSequenceFrame(nsStyleContext* aContext);
virtual ~nsSimplePageSequenceFrame();
nsresult CreateContinuingPageFrame(nsPresContext* aPresContext,
nsIFrame* aPageFrame,
nsIFrame** aContinuingFrame);
void SetPageNumberFormat(const char* aPropName, const char* aDefPropVal, PRBool aPageNumOnly);
// SharedPageData Helper methods
void SetDateTimeStr(PRUnichar * aDateTimeStr);
void SetPageNumberFormat(PRUnichar * aFormatStr, PRBool aForPageNumOnly);
nsMargin mMargin;
PRBool mIsPrintingSelection;
// Asynch Printing
PRInt32 mPageNum;
PRInt32 mTotalPages;
nsIFrame * mCurrentPageFrame;
PRPackedBool mDoingPageRange;
PRInt32 mPrintRangeType;
PRInt32 mFromPageNum;
PRInt32 mToPageNum;
PRPackedBool mPrintThisPage;
nsSize mSize;
nsSharedPageData* mPageData; // data shared by all the nsPageFrames
// Selection Printing Info
nscoord mSelectionHeight;
nscoord mYSelOffset;
// I18N date formatter service which we'll want to cache locally.
nsCOMPtr<nsIDateTimeFormat> mDateFormatter;
};
#endif /* nsSimplePageSequence_h___ */