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nsMathMLmunderFrame.h
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00001 /* ***** BEGIN LICENSE BLOCK *****
00002  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00003  *
00004  * The contents of this file are subject to the Mozilla Public License Version
00005  * 1.1 (the "License"); you may not use this file except in compliance with
00006  * the License. You may obtain a copy of the License at
00007  * http://www.mozilla.org/MPL/
00008  *
00009  * Software distributed under the License is distributed on an "AS IS" basis,
00010  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00011  * for the specific language governing rights and limitations under the
00012  * License.
00013  *
00014  * The Original Code is Mozilla MathML Project.
00015  *
00016  * The Initial Developer of the Original Code is
00017  * The University Of Queensland.
00018  * Portions created by the Initial Developer are Copyright (C) 1999
00019  * the Initial Developer. All Rights Reserved.
00020  *
00021  * Contributor(s):
00022  *   Roger B. Sidje <rbs@maths.uq.edu.au>
00023  *   David J. Fiddes <D.J.Fiddes@hw.ac.uk>
00024  *   Shyjan Mahamud <mahamud@cs.cmu.edu>
00025  *
00026  * Alternatively, the contents of this file may be used under the terms of
00027  * either of the GNU General Public License Version 2 or later (the "GPL"),
00028  * or 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 nsMathMLmunderFrame_h___
00041 #define nsMathMLmunderFrame_h___
00042 
00043 #include "nsCOMPtr.h"
00044 #include "nsMathMLContainerFrame.h"
00045 
00046 //
00047 // <munder> -- attach an underscript to a base 
00048 //
00049 
00050 class nsMathMLmunderFrame : public nsMathMLContainerFrame {
00051 public:
00052   friend nsresult NS_NewMathMLmunderFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame);
00053 
00054   NS_IMETHOD
00055   Place(nsIRenderingContext& aRenderingContext,
00056         PRBool               aPlaceOrigin,
00057         nsHTMLReflowMetrics& aDesiredSize);
00058 
00059   NS_IMETHOD
00060   InheritAutomaticData(nsIFrame* aParent);
00061 
00062   NS_IMETHOD
00063   TransmitAutomaticData();
00064 
00065   NS_IMETHOD
00066   UpdatePresentationData(PRInt32         aScriptLevelIncrement,
00067                          PRUint32        aFlagsValues,
00068                          PRUint32        aFlagsToUpdate);
00069 
00070   NS_IMETHOD
00071   UpdatePresentationDataFromChildAt(PRInt32         aFirstIndex,
00072                                     PRInt32         aLastIndex,
00073                                     PRInt32         aScriptLevelIncrement,
00074                                     PRUint32        aFlagsValues,
00075                                     PRUint32        aFlagsToUpdate);
00076 
00077   NS_IMETHOD
00078   AttributeChanged(nsIContent*     aChild,
00079                    PRInt32         aNameSpaceID,
00080                    nsIAtom*        aAttribute,
00081                    PRInt32         aModType);
00082 
00083 protected:
00084   nsMathMLmunderFrame();
00085   virtual ~nsMathMLmunderFrame();
00086   
00087   virtual PRIntn GetSkipSides() const { return 0; }
00088 };
00089 
00090 #endif /* nsMathMLmunderFrame_h___ */