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nsMathMLmrootFrame.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 nsMathMLmrootFrame_h___
00041 #define nsMathMLmrootFrame_h___
00042 
00043 #include "nsCOMPtr.h"
00044 #include "nsMathMLContainerFrame.h"
00045 
00046 //
00047 // <msqrt> and <mroot> -- form a radical
00048 //
00049 
00050 class nsMathMLmrootFrame : public nsMathMLContainerFrame {
00051 public:
00052   friend nsresult NS_NewMathMLmrootFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame);
00053 
00054   virtual void
00055   SetAdditionalStyleContext(PRInt32          aIndex, 
00056                             nsStyleContext*  aStyleContext);
00057   virtual nsStyleContext*
00058   GetAdditionalStyleContext(PRInt32 aIndex) const;
00059 
00060   NS_IMETHOD
00061   Init(nsPresContext*  aPresContext,
00062        nsIContent*      aContent,
00063        nsIFrame*        aParent,
00064        nsStyleContext*  aContext,
00065        nsIFrame*        aPrevInFlow);
00066 
00067   NS_IMETHOD
00068   TransmitAutomaticData();
00069 
00070   NS_IMETHOD
00071   Reflow(nsPresContext*          aPresContext,
00072          nsHTMLReflowMetrics&     aDesiredSize,
00073          const nsHTMLReflowState& aReflowState,
00074          nsReflowStatus&          aStatus);
00075 
00076   NS_IMETHOD 
00077   Paint(nsPresContext*      aPresContext,
00078         nsIRenderingContext& aRenderingContext,
00079         const nsRect&        aDirtyRect,
00080         nsFramePaintLayer    aWhichLayer,
00081         PRUint32             aFlags = 0);
00082 
00083 protected:
00084   nsMathMLmrootFrame();
00085   virtual ~nsMathMLmrootFrame();
00086   
00087   virtual PRIntn GetSkipSides() const { return 0; }
00088 
00089   nsMathMLChar mSqrChar;
00090   nsRect       mBarRect;
00091 };
00092 
00093 #endif /* nsMathMLmrootFrame_h___ */