gecko-dev/layout/tables/celldata.h

58 строки
1.8 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 CellData_h__
#define CellData_h__
class nsTableCellFrame;
/** Data stored by nsCellMap to rationalize rowspan and colspan cells.
* if mOrigCell is null then mSpanCell will be the rowspan/colspan source.
* if mSpanCell2 is non-null then it will point to a 2nd cell that overlaps this position
* @see nsCellMap
* @see nsTableFrame::BuildCellMap
* @see nsTableFrame::GrowCellMap
* @see nsTableFrame::BuildCellIntoMap
*
*/
class CellData
{
public:
CellData();
CellData(nsTableCellFrame* aOrigCell, CellData* aSpanData, CellData* aSpanData2)
: mOrigCell(aOrigCell), mSpanData(aSpanData), mSpanData2(aSpanData2)
{}
~CellData();
PRBool IsSpannedBy(nsTableCellFrame* aCellFrame)
{
return (mSpanData && mSpanData->mOrigCell == aCellFrame) ||
(mSpanData2 && mSpanData2->mOrigCell == aCellFrame);
}
PRBool IsOccupiedBy(nsTableCellFrame* aCellFrame)
{
return (mOrigCell == aCellFrame) || IsSpannedBy(aCellFrame);
}
nsTableCellFrame* mOrigCell; // mCell
CellData* mSpanData; // mRealCell
CellData* mSpanData2; // mOverlap
};
#endif