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nsGridLayout2.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 
00003 /* ***** BEGIN LICENSE BLOCK *****
00004  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00005  *
00006  * The contents of this file are subject to the Mozilla Public License Version
00007  * 1.1 (the "License"); you may not use this file except in compliance with
00008  * the License. You may obtain a copy of the License at
00009  * http://www.mozilla.org/MPL/
00010  *
00011  * Software distributed under the License is distributed on an "AS IS" basis,
00012  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00013  * for the specific language governing rights and limitations under the
00014  * License.
00015  *
00016  * The Original Code is Mozilla Communicator client code.
00017  *
00018  * The Initial Developer of the Original Code is
00019  * Netscape Communications Corporation.
00020  * Portions created by the Initial Developer are Copyright (C) 1998
00021  * the Initial Developer. All Rights Reserved.
00022  *
00023  * Contributor(s):
00024  *   Eric D Vaughan (original author)
00025  *
00026  * Alternatively, the contents of this file may be used under the terms of
00027  * either the GNU General Public License Version 2 or later (the "GPL"), or
00028  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00029  * in which case the provisions of the GPL or the LGPL are applicable instead
00030  * of those above. If you wish to allow use of your version of this file only
00031  * under the terms of either the GPL or the LGPL, and not to allow others to
00032  * use your version of this file under the terms of the MPL, indicate your
00033  * decision by deleting the provisions above and replace them with the notice
00034  * and other provisions required by the GPL or the LGPL. If you do not delete
00035  * the provisions above, a recipient may use your version of this file under
00036  * the terms of any one of the MPL, the GPL or the LGPL.
00037  *
00038  * ***** END LICENSE BLOCK ***** */
00039 
00040 #ifndef nsGridLayout2_h___
00041 #define nsGridLayout2_h___
00042 
00043 #include "nsStackLayout.h"
00044 #include "nsIGridPart.h"
00045 #include "nsCOMPtr.h"
00046 #include "nsIFrame.h"
00047 #include "nsGrid.h"
00048 
00049 class nsGridRowGroupLayout;
00050 class nsGridRowLayout;
00051 class nsGridRow;
00052 class nsBoxLayoutState;
00053 class nsGridCell;
00054 
00055 class nsGridLayout2 : public nsStackLayout, 
00056                       public nsIGridPart
00057 {
00058 public:
00059 
00060   friend nsresult NS_NewGridLayout2(nsIPresShell* aPresShell, nsIBoxLayout** aNewLayout);
00061 
00062   NS_DECL_ISUPPORTS_INHERITED
00063 
00064   NS_IMETHOD Layout(nsIBox* aBox, nsBoxLayoutState& aBoxLayoutState);
00065 
00066   NS_IMETHOD CastToRowGroupLayout(nsGridRowGroupLayout** aRowGroup);
00067   NS_IMETHOD CastToGridLayout(nsGridLayout2** aGrid);
00068   NS_IMETHOD GetGrid(nsIBox* aBox, nsGrid** aList, PRInt32* aIndex, nsGridRowLayout* aRequestor=nsnull);
00069   NS_IMETHOD GetParentGridPart(nsIBox* aBox, nsIBox** aParentBox, nsIGridPart** aParentGridPart);
00070   NS_IMETHOD GetMinSize(nsIBox* aBox, nsBoxLayoutState& aBoxLayoutState, nsSize& aSize);
00071   NS_IMETHOD GetPrefSize(nsIBox* aBox, nsBoxLayoutState& aBoxLayoutState, nsSize& aSize);
00072   NS_IMETHOD GetMaxSize(nsIBox* aBox, nsBoxLayoutState& aBoxLayoutState, nsSize& aSize);
00073   NS_IMETHOD CountRowsColumns(nsIBox* aBox, PRInt32& aRowCount, PRInt32& aComputedColumnCount);
00074   NS_IMETHOD DirtyRows(nsIBox* aBox, nsBoxLayoutState& aState);
00075   NS_IMETHOD BuildRows(nsIBox* aBox, nsGridRow* aRows, PRInt32* aCount);
00076   NS_IMETHOD GetTotalMargin(nsIBox* aBox, nsMargin& aMargin, PRBool aIsHorizontal);
00077   NS_IMETHOD GetRowCount(PRInt32& aRowCount);
00078   NS_IMETHOD ChildrenInserted(nsIBox* aBox, nsBoxLayoutState& aState,
00079                               nsIBox* aPrevBox, nsIBox* aChildList);
00080   NS_IMETHOD ChildrenAppended(nsIBox* aBox, nsBoxLayoutState& aState,
00081                               nsIBox* aChildList);
00082   NS_IMETHOD ChildrenRemoved(nsIBox* aBox, nsBoxLayoutState& aState,
00083                              nsIBox* aChildList);
00084   NS_IMETHOD ChildrenSet(nsIBox* aBox, nsBoxLayoutState& aState,
00085                          nsIBox* aChildList);
00086 protected:
00087 
00088   nsGridLayout2(nsIPresShell* aShell);
00089   nsGrid mGrid;
00090 
00091 private:
00092   void AddWidth(nsSize& aSize, nscoord aSize2, PRBool aIsHorizontal);
00093 
00094 
00095 }; // class nsGridLayout2
00096 
00097 
00098 #endif
00099