gecko-dev/layout/generic/nsAreaFrame.h
troy%netscape.com 85012ab550 Change to how overflow is handled for absolutely positioned elements.
We no longer use nsIAraeFrame and now it's folded into the overflow
area in the reflow metrics
1999-12-06 15:49:53 +00:00

101 lines
3.3 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#ifndef nsAreaFrame_h___
#define nsAreaFrame_h___
#include "nsBlockFrame.h"
#include "nsVoidArray.h"
#include "nsAbsoluteContainingBlock.h"
class nsSpaceManager;
struct nsStyleDisplay;
struct nsStylePosition;
/**
* Child list name indices
* @see #GetAdditionalChildListName()
*/
#define NS_AREA_FRAME_ABSOLUTE_LIST_INDEX (NS_BLOCK_FRAME_LAST_LIST_INDEX + 1)
/**
* The area frame has an additional named child list:
* - "Absolute-list" which contains the absolutely positioned frames
*
* @see nsLayoutAtoms::absoluteList
*/
class nsAreaFrame : public nsBlockFrame
{
public:
friend nsresult NS_NewAreaFrame(nsIPresShell* aPresShell, nsIFrame** aResult, PRUint32 aFlags);
// nsIFrame
NS_IMETHOD Destroy(nsIPresContext* aPresContext);
NS_IMETHOD SetInitialChildList(nsIPresContext* aPresContext,
nsIAtom* aListName,
nsIFrame* aChildList);
NS_IMETHOD AppendFrames(nsIPresContext* aPresContext,
nsIPresShell& aPresShell,
nsIAtom* aListName,
nsIFrame* aFrameList);
NS_IMETHOD InsertFrames(nsIPresContext* aPresContext,
nsIPresShell& aPresShell,
nsIAtom* aListName,
nsIFrame* aPrevFrame,
nsIFrame* aFrameList);
NS_IMETHOD RemoveFrame(nsIPresContext* aPresContext,
nsIPresShell& aPresShell,
nsIAtom* aListName,
nsIFrame* aOldFrame);
NS_IMETHOD GetAdditionalChildListName(PRInt32 aIndex,
nsIAtom** aListName) const;
NS_IMETHOD FirstChild(nsIAtom* aListName, nsIFrame** aFirstChild) const;
NS_IMETHOD Reflow(nsIPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
/**
* Get the "type" of the frame
*
* @see nsLayoutAtoms::areaFrame
*/
NS_IMETHOD GetFrameType(nsIAtom** aType) const;
#ifdef DEBUG
NS_IMETHOD GetFrameName(nsString& aResult) const;
NS_IMETHOD SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const;
#endif
protected:
nsAreaFrame();
private:
nsAbsoluteContainingBlock mAbsoluteContainer;
};
#endif /* nsAreaFrame_h___ */