/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
 *
 * 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 Communicator client code.
 *
 * The Initial Developer of the Original Code is 
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or 
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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#ifndef nsIGridPart_h___
#define nsIGridPart_h___

#include "nsISupports.h"
#include "nsFrame.h"
#include "nsIBox.h"

class nsGridRowGroupLayout;
class nsGrid;
class nsGridRowLayout;
class nsGridRow;
class nsGridLayout2;


// {AF0C1603-06C3-11d4-BA07-001083023C1E}
#define NS_IMONUMENT_IID { 0xaf0c1603, 0x6c3, 0x11d4, { 0xba, 0x7, 0x0, 0x10, 0x83, 0x2, 0x3c, 0x1e } };

class nsIGridPart : public nsISupports {

public:

  static const nsIID& GetIID() { static nsIID iid = NS_IMONUMENT_IID; return iid; }

  NS_IMETHOD CastToRowGroupLayout(nsGridRowGroupLayout** aRowGroup)=0;
  NS_IMETHOD CastToGridLayout(nsGridLayout2** aGrid)=0;
  NS_IMETHOD GetGrid(nsIBox* aBox, nsGrid** aList, PRInt32* aIndex, nsGridRowLayout* aRequestor=nsnull)=0;
  NS_IMETHOD GetParentGridPart(nsIBox* aBox, nsIBox** aParentBox, nsIGridPart** aParentGridRow)=0;
  NS_IMETHOD CountRowsColumns(nsIBox* aBox, PRInt32& aRowCount, PRInt32& aComputedColumnCount)=0;
  NS_IMETHOD DirtyRows(nsIBox* aBox, nsBoxLayoutState& aState)=0;
  NS_IMETHOD BuildRows(nsIBox* aBox, nsGridRow* aRows, PRInt32* aCount)=0;
  NS_IMETHOD GetTotalMargin(nsIBox* aBox, nsMargin& aMargin, PRBool aIsHorizontal)=0;
  NS_IMETHOD GetRowCount(PRInt32& aRowCount)=0;
};


#endif

