/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla 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/MPL/ * * 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 of 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 * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ /** Author: Eric D Vaughan **/ #ifndef nsGridRowLayout_h___ #define nsGridRowLayout_h___ #include "nsSprocketLayout.h" #include "nsIGridPart.h" class nsGridRowGroupLayout; class nsGridLayout2; class nsBoxLayoutState; class nsIPresShell; class nsGrid; /** * A common base class for nsGridRowLeafLayout (the nsIBoxLayout object * for a grid row or column) and nsGridRowGroupLayout (the nsIBoxLayout * object for a grid row group or column group). */ // XXXldb This needs a name that indicates that it's a base class for // both row and rows (row-group). class nsGridRowLayout : public nsSprocketLayout, public nsIGridPart { public: NS_DECL_ISUPPORTS_INHERITED virtual nsGridRowGroupLayout* CastToRowGroupLayout() { return nsnull; } virtual nsGridLayout2* CastToGridLayout() { return nsnull; } virtual nsGrid* GetGrid(nsIBox* aBox, PRInt32* aIndex, nsGridRowLayout* aRequestor=nsnull); virtual void GetParentGridPart(nsIBox* aBox, nsIBox** aParentBox, nsIGridPart** aParentGridRow); virtual void ChildrenInserted(nsIBox* aBox, nsBoxLayoutState& aState, nsIBox* aPrevBox, nsIBox* aChildList); virtual void ChildrenAppended(nsIBox* aBox, nsBoxLayoutState& aState, nsIBox* aChildList); virtual void ChildrenRemoved(nsIBox* aBox, nsBoxLayoutState& aState, nsIBox* aChildList); virtual void ChildrenSet(nsIBox* aBox, nsBoxLayoutState& aState, nsIBox* aChildList); virtual nsMargin GetTotalMargin(nsIBox* aBox, PRBool aIsHorizontal); protected: virtual void ChildAddedOrRemoved(nsIBox* aBox, nsBoxLayoutState& aState)=0; nsGridRowLayout(nsIPresShell* aShell); }; #endif