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lightning-sunbird  0.9+nobinonly
nsMathMLTokenFrame.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  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either of the GNU General Public License Version 2 or later (the "GPL"),
00026  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
00028  * of those above. If you wish to allow use of your version of this file only
00029  * under the terms of either the GPL or the LGPL, and not to allow others to
00030  * use your version of this file under the terms of the MPL, indicate your
00031  * decision by deleting the provisions above and replace them with the notice
00032  * and other provisions required by the GPL or the LGPL. If you do not delete
00033  * the provisions above, a recipient may use your version of this file under
00034  * the terms of any one of the MPL, the GPL or the LGPL.
00035  *
00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #ifndef nsMathMLTokenFrame_h___
00039 #define nsMathMLTokenFrame_h___
00040 
00041 #include "nsCOMPtr.h"
00042 #include "nsMathMLContainerFrame.h"
00043 
00044 //
00045 // Base class to handle token elements
00046 //
00047 
00048 class nsMathMLTokenFrame : public nsMathMLContainerFrame {
00049 public:
00050   friend nsresult NS_NewMathMLTokenFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame);
00051 
00052   virtual eMathMLFrameType GetMathMLFrameType();
00053 
00054   NS_IMETHOD
00055   Init(nsPresContext*  aPresContext,
00056        nsIContent*      aContent,
00057        nsIFrame*        aParent,
00058        nsStyleContext*  aContext,
00059        nsIFrame*        aPrevInFlow);
00060 
00061   NS_IMETHOD
00062   SetInitialChildList(nsPresContext* aPresContext,
00063                       nsIAtom*        aListName,
00064                       nsIFrame*       aChildList);
00065 
00066   NS_IMETHOD
00067   Reflow(nsPresContext*          aPresContext,
00068          nsHTMLReflowMetrics&     aDesiredSize,
00069          const nsHTMLReflowState& aReflowState,
00070          nsReflowStatus&          aStatus);
00071 
00072   NS_IMETHOD
00073   Place(nsIRenderingContext& aRenderingContext,
00074         PRBool               aPlaceOrigin,
00075         nsHTMLReflowMetrics& aDesiredSize);
00076 
00077   NS_IMETHOD
00078   ReflowDirtyChild(nsIPresShell* aPresShell,
00079                    nsIFrame*     aChild);
00080 
00081   NS_IMETHOD
00082   AttributeChanged(nsIContent*     aChild,
00083                    PRInt32         aNameSpaceID,
00084                    nsIAtom*        aAttribute,
00085                    PRInt32         aModType);
00086 protected:
00087   nsMathMLTokenFrame();
00088   virtual ~nsMathMLTokenFrame();
00089 
00090   virtual PRIntn GetSkipSides() const { return 0; }
00091 
00092   // hook to perform MathML-specific actions depending on the tag
00093   virtual void
00094   ProcessTextData(nsPresContext* aPresContext);
00095 
00096   // helper to set the style of <mi> which has to be italic or normal
00097   // depending on its textual content
00098   void SetTextStyle(nsPresContext* aPresContext);
00099 
00100   // helper to set the quotes of <ms>
00101   void SetQuotes(nsPresContext* aPresContext);
00102 };
00103 
00104 #endif /* nsMathMLTokentFrame_h___ */