pjs/layout/tables/nsTableCellFrame.h

151 строка
4.6 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 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#ifndef nsTableCellFrame_h__
#define nsTableCellFrame_h__
#include "nscore.h"
#include "nsContainerFrame.h"
#include "nsTableFrame.h"
class nsCellLayoutData;
struct nsStyleSpacing;
/**
* nsTableCellFrame
* data structure to maintain information about a single table cell's frame
*
* @author sclark
*/
class nsTableCellFrame : public nsContainerFrame
{
public:
void Init(PRInt32 aRowSpan, PRInt32 aColSpan, PRInt32 aColIndex);
static nsresult NewFrame(nsIFrame** aInstancePtrResult,
nsIContent* aContent,
nsIFrame* aParent);
NS_IMETHOD Paint(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect);
NS_IMETHOD Reflow(nsIPresContext* aPresContext,
nsReflowMetrics& aDesiredSize,
const nsReflowState& aReflowState,
nsReflowStatus& aStatus);
/**
* @see nsContainerFrame
*/
NS_IMETHOD CreateContinuingFrame(nsIPresContext* aPresContext,
nsIFrame* aParent,
nsIStyleContext* aStyleContext,
nsIFrame*& aContinuingFrame);
void VerticallyAlignChild(nsIPresContext* aPresContext);
/** return the mapped cell's row span. Always >= 1. */
virtual PRInt32 GetRowSpan();
/** return the mapped cell's col span. Always >= 1. */
virtual PRInt32 GetColSpan();
/** return the mapped cell's column index (starting at 0 for the first column) */
virtual PRInt32 GetColIndex();
virtual void SetColIndex (int aColIndex);
virtual ~nsTableCellFrame();
// Get the TableFrame that contains this cell frame
virtual nsTableFrame* GetTableFrame();
nsCellLayoutData * GetCellLayoutData();
void SetCellLayoutData(nsCellLayoutData *aData);
// For DEBUGGING Purposes Only
NS_IMETHOD MoveTo(nscoord aX, nscoord aY);
NS_IMETHOD SizeTo(nscoord aWidth, nscoord aHeight);
protected:
/** protected constructor.
* @see NewFrame
*/
nsTableCellFrame(nsIContent* aContent,
nsIFrame* aParentFrame);
/** Create a psuedo-frame for this cell. Handles continuing frames as needed.
*/
virtual void CreatePsuedoFrame(nsIPresContext* aPresContext);
// Subclass hook for style post processing
NS_IMETHOD DidSetStyleContext(nsIPresContext* aPresContext);
void MapTextAttributes(nsIPresContext* aPresContext);
void MapBorderMarginPadding(nsIPresContext* aPresContext);
void MapHTMLBorderStyle(nsIPresContext* aPresContext,nsStyleSpacing& aSpacingStyle, nscoord aBorderWidth);
PRBool ConvertToPixelValue(nsHTMLValue& aValue, PRInt32 aDefault, PRInt32& aResult);
protected:
/** the number of rows spanned by this cell */
int mRowSpan;
/** the number of columns spanned by this cell */
int mColSpan;
/** the starting column for this cell */
int mColIndex;
nsCellLayoutData *mCellLayoutData;
};
inline void nsTableCellFrame::Init(PRInt32 aRowSpan, PRInt32 aColSpan, PRInt32 aColIndex)
{
NS_PRECONDITION(0<aRowSpan, "bad row span arg");
NS_PRECONDITION(0<aColSpan, "bad col span arg");
NS_PRECONDITION(0<=aColIndex, "bad col index arg");
mRowSpan = aRowSpan;
mColSpan = aColSpan;
mColIndex = aColIndex;
}
inline PRInt32 nsTableCellFrame::GetRowSpan()
{ return mRowSpan;}
inline PRInt32 nsTableCellFrame::GetColSpan()
{ return mColSpan;}
inline PRInt32 nsTableCellFrame::GetColIndex()
{ return mColIndex;}
inline void nsTableCellFrame::SetColIndex (int aColIndex)
{
NS_ASSERTION(0<=aColIndex, "illegal negative column index.");
mColIndex = aColIndex;
}
inline nsCellLayoutData * nsTableCellFrame::GetCellLayoutData()
{ return mCellLayoutData;}
inline void nsTableCellFrame::SetCellLayoutData(nsCellLayoutData *aData)
{ mCellLayoutData = aData;}
#endif