зеркало из https://github.com/mozilla/gecko-dev.git
115 строки
3.9 KiB
C++
115 строки
3.9 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 nsTableColGroupFrame_h__
|
|
#define nsTableColGroupFrame_h__
|
|
|
|
#include "nscore.h"
|
|
#include "nsContainerFrame.h"
|
|
|
|
class nsTableColFrame;
|
|
|
|
|
|
/**
|
|
* nsTableColGroupFrame
|
|
* data structure to maintain information about a single table cell's frame
|
|
*
|
|
* @author sclark
|
|
*/
|
|
class nsTableColGroupFrame : public nsContainerFrame
|
|
{
|
|
public:
|
|
/** instantiate a new instance of nsTableColGroupFrame.
|
|
* @param aResult the new object is returned in this out-param
|
|
* @param aContent the table object to map
|
|
* @param aParent the parent of the new frame
|
|
*
|
|
* @return NS_OK if the frame was properly allocated, otherwise an error code
|
|
*/
|
|
friend nsresult
|
|
NS_NewTableColGroupFrame(nsIContent* aContent,
|
|
nsIFrame* aParentFrame,
|
|
nsIFrame*& aResult);
|
|
|
|
NS_IMETHOD Init(nsIPresContext& aPresContext, nsIFrame* aChildList);
|
|
|
|
NS_IMETHOD Paint(nsIPresContext& aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect);
|
|
|
|
/** reflow of a column group is a trivial matter of reflowing
|
|
* the col group's children (columns), and setting this frame
|
|
* to 0-size. Since tables are row-centric, column group frames
|
|
* don't play directly in the rendering game. They do however
|
|
* maintain important state that effects table and cell layout.
|
|
*/
|
|
NS_IMETHOD Reflow(nsIPresContext& aPresContext,
|
|
nsReflowMetrics& aDesiredSize,
|
|
const nsReflowState& aReflowState,
|
|
nsReflowStatus& aStatus);
|
|
|
|
/** returns the number of columns represented by this group.
|
|
* if there are col children, count them (taking into account the span of each)
|
|
* else, check my own span attribute.
|
|
*/
|
|
virtual PRInt32 GetColumnCount ();
|
|
|
|
virtual nsTableColFrame * GetColumnAt (PRInt32 aColIndex);
|
|
|
|
virtual PRInt32 GetStartColumnIndex ();
|
|
|
|
virtual void SetStartColumnIndex (PRInt32 aIndex);
|
|
|
|
/** helper method to get the span attribute for this colgroup */
|
|
PRInt32 GetSpan();
|
|
|
|
NS_IMETHOD List(FILE* out = stdout, PRInt32 aIndent = 0, nsIListFilter *aFilter = nsnull) const;
|
|
|
|
protected:
|
|
|
|
nsTableColGroupFrame(nsIContent* aContent, nsIFrame* aParentFrame);
|
|
|
|
~nsTableColGroupFrame();
|
|
|
|
/** Hook for style post processing.
|
|
* Since we need to know the full column structure before the COLS attribute
|
|
* can be interpreted, we can't just use DidSetStyleContext
|
|
*/
|
|
NS_METHOD SetStyleContextForFirstPass(nsIPresContext* aPresContext);
|
|
|
|
nsresult InitNewFrames(nsIPresContext& aPresContext, nsIFrame* aChildList);
|
|
nsresult AppendNewFrames(nsIPresContext& aPresContext, nsIFrame* aChildList);
|
|
|
|
PRInt32 mColCount;
|
|
|
|
/** the starting column index this col group represents. Must be >= 0. */
|
|
PRInt32 mStartColIndex;
|
|
|
|
};
|
|
|
|
inline int nsTableColGroupFrame::GetStartColumnIndex ()
|
|
{ return mStartColIndex;}
|
|
|
|
inline void nsTableColGroupFrame::SetStartColumnIndex (int aIndex)
|
|
{
|
|
if (aIndex != mStartColIndex)
|
|
mColCount = 0; // our index is being changed, trigger reset of col indicies, don't propogate back to table
|
|
mStartColIndex = aIndex;
|
|
}
|
|
|
|
#endif
|