gecko-dev/layout/generic/nsPageFrame.h

163 lines
5.5 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* 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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* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
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* the provisions above, a recipient may use your version of this file under
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*
* ***** END LICENSE BLOCK ***** */
#ifndef nsPageFrame_h___
#define nsPageFrame_h___
#include "nsContainerFrame.h"
#include "nsLeafFrame.h"
class nsSharedPageData;
// Page frame class used by the simple page sequence frame
class nsPageFrame : public nsContainerFrame {
public:
NS_DECL_FRAMEARENA_HELPERS
friend nsIFrame* NS_NewPageFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
NS_IMETHOD Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aMaxSize,
nsReflowStatus& aStatus);
NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists);
/**
* Get the "type" of the frame
*
* @see nsGkAtoms::pageFrame
*/
virtual nsIAtom* GetType() const;
#ifdef NS_DEBUG
NS_IMETHOD GetFrameName(nsAString& aResult) const;
#endif
//////////////////
// For Printing
//////////////////
// Tell the page which page number it is out of how many
virtual void SetPageNumInfo(PRInt32 aPageNumber, PRInt32 aTotalPages);
virtual void SetSharedPageData(nsSharedPageData* aPD);
// We must allow Print Preview UI to have a background, no matter what the
// user's settings
virtual bool HonorPrintBackgroundSettings() { return false; }
void PaintHeaderFooter(nsRenderingContext& aRenderingContext,
nsPoint aPt);
void PaintPageContent(nsRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsPoint aPt);
protected:
nsPageFrame(nsStyleContext* aContext);
virtual ~nsPageFrame();
typedef enum {
eHeader,
eFooter
} nsHeaderFooterEnum;
nscoord GetXPosition(nsRenderingContext& aRenderingContext,
const nsRect& aRect,
PRInt32 aJust,
const nsString& aStr);
void DrawHeaderFooter(nsRenderingContext& aRenderingContext,
nsHeaderFooterEnum aHeaderFooter,
PRInt32 aJust,
const nsString& sStr,
const nsRect& aRect,
nscoord aHeight,
nscoord aAscent,
nscoord aWidth);
void DrawHeaderFooter(nsRenderingContext& aRenderingContext,
nsHeaderFooterEnum aHeaderFooter,
const nsString& aStrLeft,
const nsString& aStrRight,
const nsString& aStrCenter,
const nsRect& aRect,
nscoord aAscent,
nscoord aHeight);
void ProcessSpecialCodes(const nsString& aStr, nsString& aNewStr);
PRInt32 mPageNum;
PRInt32 mTotNumPages;
nsSharedPageData* mPD;
};
class nsPageBreakFrame : public nsLeafFrame
{
NS_DECL_FRAMEARENA_HELPERS
nsPageBreakFrame(nsStyleContext* aContext);
~nsPageBreakFrame();
NS_IMETHOD Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
virtual nsIAtom* GetType() const;
#ifdef NS_DEBUG
NS_IMETHOD GetFrameName(nsAString& aResult) const;
#endif
protected:
virtual nscoord GetIntrinsicWidth();
virtual nscoord GetIntrinsicHeight();
bool mHaveReflowed;
friend nsIFrame* NS_NewPageBreakFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
};
#endif /* nsPageFrame_h___ */