зеркало из https://github.com/mozilla/pjs.git
290 строки
9.2 KiB
C++
290 строки
9.2 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 "nsHTMLContainerFrame.h"
|
|
#include "nsTableRowFrame.h" // need to actually include this here to inline GetRowIndex
|
|
#include "nsIStyleContext.h"
|
|
|
|
struct nsStyleSpacing;
|
|
class nsTableFrame;
|
|
class nsHTMLValue;
|
|
|
|
/**
|
|
* nsTableCellFrame
|
|
* data structure to maintain information about a single table cell's frame
|
|
*
|
|
* @author sclark
|
|
*/
|
|
class nsTableCellFrame : public nsHTMLContainerFrame
|
|
{
|
|
public:
|
|
|
|
// default constructor supplied by the compiler
|
|
|
|
void InitCellFrame(PRInt32 aColIndex);
|
|
|
|
void SetBorderEdge(PRUint8 aSide,
|
|
PRInt32 aRowIndex,
|
|
PRInt32 aColIndex,
|
|
nsBorderEdge *border,
|
|
nscoord aOddAmountToAdd);
|
|
|
|
void SetBorderEdgeLength(PRUint8 aSide,
|
|
PRInt32 aIndex,
|
|
nscoord aLength);
|
|
|
|
|
|
/** instantiate a new instance of nsTableCellFrame.
|
|
* @param aResult the new object is returned in this out-param
|
|
*
|
|
* @return NS_OK if the frame was properly allocated, otherwise an error code
|
|
*/
|
|
friend nsresult
|
|
NS_NewTableCellFrame(nsIFrame*& aResult);
|
|
|
|
// nsISupports
|
|
NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
|
|
|
|
NS_IMETHOD Paint(nsIPresContext& aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
nsFramePaintLayer aWhichLayer);
|
|
|
|
NS_IMETHOD Reflow(nsIPresContext& aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus);
|
|
|
|
/**
|
|
* @see nsContainerFrame
|
|
*/
|
|
NS_IMETHOD CreateContinuingFrame(nsIPresContext& aPresContext,
|
|
nsIFrame* aParent,
|
|
nsIStyleContext* aStyleContext,
|
|
nsIFrame*& aContinuingFrame);
|
|
|
|
NS_IMETHOD GetFrameName(nsString& aResult) const;
|
|
|
|
virtual void VerticallyAlignChild();
|
|
|
|
/** return the mapped cell's row span. Always >= 1. */
|
|
virtual PRInt32 GetRowSpan();
|
|
|
|
// there is no set row index because row index depends on the cell's parent row only
|
|
|
|
/** return the mapped cell's row index (starting at 0 for the first row) */
|
|
virtual PRInt32 GetRowIndex();
|
|
|
|
/** 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();
|
|
|
|
/** return the available width given to this frame during its last reflow */
|
|
virtual nscoord GetPriorAvailWidth();
|
|
|
|
/** set the available width given to this frame during its last reflow */
|
|
virtual void SetPriorAvailWidth(nscoord aPriorAvailWidth);
|
|
|
|
/** return the desired size returned by this frame during its last reflow */
|
|
virtual nsSize GetDesiredSize();
|
|
|
|
/** set the desired size returned by this frame during its last reflow */
|
|
virtual void SetDesiredSize(const nsHTMLReflowMetrics & aDesiredSize);
|
|
|
|
/** return the desired size returned by this frame during its last reflow */
|
|
virtual nsSize GetPass1DesiredSize();
|
|
|
|
/** set the desired size returned by this frame during its last reflow */
|
|
virtual void SetPass1DesiredSize(const nsHTMLReflowMetrics & aDesiredSize);
|
|
|
|
/** return the MaxElement size returned by this frame during its last reflow
|
|
* not counting reflows where MaxElementSize is not requested.
|
|
* That is, the cell frame will always remember the last non-null MaxElementSize
|
|
*/
|
|
virtual nsSize GetPass1MaxElementSize();
|
|
|
|
/** set the MaxElement size returned by this frame during its last reflow.
|
|
* should never be called with a null MaxElementSize
|
|
*/
|
|
virtual void SetPass1MaxElementSize(const nsSize & aMaxElementSize);
|
|
|
|
void RecalcLayoutData(nsTableFrame* aTableFrame,
|
|
nsVoidArray* aBoundaryCells[4]);
|
|
|
|
|
|
NS_IMETHOD GetMargin(nsMargin& aMargin);
|
|
|
|
PRBool GetContentEmpty();
|
|
void SetContentEmpty(PRBool aContentEmpty);
|
|
|
|
protected:
|
|
/** implement abstract method on nsHTMLContainerFrame */
|
|
virtual PRIntn GetSkipSides() const;
|
|
|
|
private:
|
|
|
|
// All these methods are support methods for RecalcLayoutData
|
|
nsIFrame* GetFrameAt(nsVoidArray* aList, PRInt32 aIndex);
|
|
|
|
nscoord GetMargin(nsIFrame* aFrame, PRUint8 aEdge) const;
|
|
|
|
//XXX: aTableFrame can be removed as soon as border-collapse inherits correctly
|
|
void GetCellBorder(nsMargin &aBorder, nsTableFrame *aTableFrame);
|
|
|
|
PRUint8 GetOpposingEdge(PRUint8 aEdge);
|
|
|
|
void CalculateBorders(nsTableFrame* aTableFrame,
|
|
nsVoidArray* aBoundaryCells[4]);
|
|
|
|
nscoord FindLargestMargin(nsVoidArray* aList,PRUint8 aEdge);
|
|
|
|
|
|
void CalculateMargins(nsTableFrame* aTableFrame,
|
|
nsVoidArray* aBoundaryCells[4]);
|
|
|
|
protected:
|
|
|
|
// Subclass hook for style post processing
|
|
NS_IMETHOD DidSetStyleContext(nsIPresContext* aPresContext);
|
|
|
|
void MapBorderMarginPadding(nsIPresContext* aPresContext);
|
|
|
|
void MapHTMLBorderStyle(nsIPresContext* aPresContext,
|
|
nsStyleSpacing& aSpacingStyle,
|
|
nscoord aBorderWidth,
|
|
nsTableFrame *aTableFrame);
|
|
|
|
void MapVAlignAttribute(nsIPresContext* aPresContext, nsTableFrame *aTableFrame);
|
|
void MapHAlignAttribute(nsIPresContext* aPresContext, nsTableFrame *aTableFrame);
|
|
|
|
PRBool ConvertToPixelValue(nsHTMLValue& aValue, PRInt32 aDefault, PRInt32& aResult);
|
|
|
|
NS_IMETHOD IR_StyleChanged(nsIPresContext& aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus);
|
|
|
|
protected:
|
|
|
|
/** the starting column for this cell */
|
|
int mColIndex;
|
|
|
|
/** the available width we were given in our previous reflow */
|
|
nscoord mPriorAvailWidth;
|
|
|
|
/** these are the last computed desired and max element sizes */
|
|
nsSize mDesiredSize;
|
|
nsSize mMaxElementSize;
|
|
|
|
/** these are the Pass 1 unconstrained desired and max element sizes */
|
|
nsSize mPass1DesiredSize;
|
|
nsSize mPass1MaxElementSize;
|
|
|
|
nsresult mCalculated;
|
|
nsMargin mMargin;
|
|
PRBool mIsContentEmpty; // PR_TRUE if the cell's contents take up no space
|
|
//XXX: mIsContentEmpty should get yanked in favor of using free a bit on the frame base class
|
|
// the FrameState slot (mState; GetFrameState/SetFrameState)
|
|
public:
|
|
nsBorderEdges mBorderEdges; // one list of border segments for each side of the table frame
|
|
// used only for the collapsing border model
|
|
|
|
};
|
|
|
|
inline PRInt32 nsTableCellFrame::GetRowIndex()
|
|
{
|
|
nsTableRowFrame * row;
|
|
GetParent((nsIFrame *&)row);
|
|
if (nsnull!=row)
|
|
return row->GetRowIndex();
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
inline PRInt32 nsTableCellFrame::GetColIndex()
|
|
{ return mColIndex;}
|
|
|
|
inline nscoord nsTableCellFrame::GetPriorAvailWidth()
|
|
{ return mPriorAvailWidth;}
|
|
|
|
inline void nsTableCellFrame::SetPriorAvailWidth(nscoord aPriorAvailWidth)
|
|
{ mPriorAvailWidth = aPriorAvailWidth;}
|
|
|
|
inline nsSize nsTableCellFrame::GetDesiredSize()
|
|
{ return mDesiredSize; }
|
|
|
|
inline void nsTableCellFrame::SetDesiredSize(const nsHTMLReflowMetrics & aDesiredSize)
|
|
{
|
|
mDesiredSize.width = aDesiredSize.width;
|
|
mDesiredSize.height = aDesiredSize.height;
|
|
}
|
|
|
|
inline nsSize nsTableCellFrame::GetPass1DesiredSize()
|
|
{ return mPass1DesiredSize; }
|
|
|
|
inline void nsTableCellFrame::SetPass1DesiredSize(const nsHTMLReflowMetrics & aDesiredSize)
|
|
{
|
|
mPass1DesiredSize.width = aDesiredSize.width;
|
|
mPass1DesiredSize.height = aDesiredSize.height;
|
|
}
|
|
|
|
inline nsSize nsTableCellFrame::GetPass1MaxElementSize()
|
|
{ return mPass1MaxElementSize; }
|
|
|
|
inline void nsTableCellFrame::SetPass1MaxElementSize(const nsSize & aMaxElementSize)
|
|
{
|
|
mPass1MaxElementSize.width = aMaxElementSize.width;
|
|
mPass1MaxElementSize.height = aMaxElementSize.height;
|
|
}
|
|
|
|
inline void nsTableCellFrame::CalculateBorders(nsTableFrame* aTableFrame,
|
|
nsVoidArray* aBoundaryCells[4])
|
|
{
|
|
|
|
}
|
|
|
|
inline NS_METHOD nsTableCellFrame::GetMargin(nsMargin& aMargin)
|
|
{
|
|
if (mCalculated == NS_OK)
|
|
{
|
|
aMargin = mMargin;
|
|
return NS_OK;
|
|
}
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
inline PRBool nsTableCellFrame::GetContentEmpty()
|
|
{
|
|
return mIsContentEmpty;
|
|
}
|
|
|
|
inline void nsTableCellFrame::SetContentEmpty(PRBool aContentEmpty)
|
|
{
|
|
mIsContentEmpty = aContentEmpty;
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|