LCOV - code coverage report
Current view: directory - layout/mathml - nsMathMLmencloseFrame.h (source / functions) Found Hit Coverage
Test: app.info Lines: 2 0 0.0 %
Date: 2012-06-02 Functions: 1 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is Mozilla MathML Project.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * The University Of Queensland.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1999
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   Roger B. Sidje <rbs@maths.uq.edu.au>
      24                 :  *   David J. Fiddes <D.J.Fiddes@hw.ac.uk>
      25                 :  *   Vilya Harvey <vilya@nag.co.uk>
      26                 :  *   Shyjan Mahamud <mahamud@cs.cmu.edu>
      27                 :  *   Frederic Wang <fred.wang@free.fr> - extension of <msqrt/> to <menclose/>
      28                 :  *
      29                 :  * Alternatively, the contents of this file may be used under the terms of
      30                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      31                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      32                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      33                 :  * of those above. If you wish to allow use of your version of this file only
      34                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      35                 :  * use your version of this file under the terms of the MPL, indicate your
      36                 :  * decision by deleting the provisions above and replace them with the notice
      37                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      38                 :  * the provisions above, a recipient may use your version of this file under
      39                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      40                 :  *
      41                 :  * ***** END LICENSE BLOCK ***** */
      42                 : 
      43                 : 
      44                 : #ifndef nsMathMLmencloseFrame_h___
      45                 : #define nsMathMLmencloseFrame_h___
      46                 : 
      47                 : #include "nsCOMPtr.h"
      48                 : #include "nsMathMLContainerFrame.h"
      49                 : 
      50                 : //
      51                 : // <menclose> -- enclose content with a stretching symbol such
      52                 : // as a long division sign.
      53                 : //
      54                 : 
      55                 : /*
      56                 :   The MathML REC describes:
      57                 : 
      58                 :   The menclose element renders its content inside the enclosing notation
      59                 :   specified by its notation attribute. menclose accepts any number of arguments;
      60                 :   if this number is not 1, its contents are treated as a single "inferred mrow"
      61                 :   containing its arguments, as described in Section 3.1.3 Required Arguments. 
      62                 : */
      63                 : 
      64                 : enum nsMencloseNotation
      65                 :   {
      66                 :     NOTATION_LONGDIV = 0x1,
      67                 :     NOTATION_RADICAL = 0x2,
      68                 :     NOTATION_ROUNDEDBOX = 0x4,
      69                 :     NOTATION_CIRCLE = 0x8,
      70                 :     NOTATION_LEFT = 0x10,
      71                 :     NOTATION_RIGHT = 0x20,
      72                 :     NOTATION_TOP = 0x40,
      73                 :     NOTATION_BOTTOM = 0x80,
      74                 :     NOTATION_UPDIAGONALSTRIKE = 0x100,
      75                 :     NOTATION_DOWNDIAGONALSTRIKE = 0x200,
      76                 :     NOTATION_VERTICALSTRIKE = 0x400,
      77                 :     NOTATION_HORIZONTALSTRIKE = 0x800
      78                 :   };
      79                 : 
      80                 : class nsMathMLmencloseFrame : public nsMathMLContainerFrame {
      81                 : public:
      82                 :   NS_DECL_FRAMEARENA_HELPERS
      83                 : 
      84                 :   friend nsIFrame* NS_NewMathMLmencloseFrame(nsIPresShell*   aPresShell,
      85                 :                                              nsStyleContext* aContext);
      86                 :   
      87                 :   virtual nsresult
      88                 :   Place(nsRenderingContext& aRenderingContext,
      89                 :         bool                 aPlaceOrigin,
      90                 :         nsHTMLReflowMetrics& aDesiredSize);
      91                 :   
      92                 :   virtual nsresult
      93                 :   MeasureForWidth(nsRenderingContext& aRenderingContext,
      94                 :                   nsHTMLReflowMetrics& aDesiredSize);
      95                 :   
      96                 :   NS_IMETHOD
      97                 :   AttributeChanged(PRInt32         aNameSpaceID,
      98                 :                    nsIAtom*        aAttribute,
      99                 :                    PRInt32         aModType);
     100                 :   
     101                 :   virtual void
     102                 :   SetAdditionalStyleContext(PRInt32          aIndex, 
     103                 :                             nsStyleContext*  aStyleContext);
     104                 :   virtual nsStyleContext*
     105                 :   GetAdditionalStyleContext(PRInt32 aIndex) const;
     106                 : 
     107                 :   NS_IMETHOD BuildDisplayList(nsDisplayListBuilder*   aBuilder,
     108                 :                               const nsRect&           aDirtyRect,
     109                 :                               const nsDisplayListSet& aLists);
     110                 : 
     111                 :   NS_IMETHOD
     112                 :   InheritAutomaticData(nsIFrame* aParent);
     113                 : 
     114                 :   NS_IMETHOD
     115                 :   TransmitAutomaticData();
     116                 : 
     117                 :   virtual nscoord
     118                 :   FixInterFrameSpacing(nsHTMLReflowMetrics& aDesiredSize);
     119                 : 
     120                 : protected:
     121                 :   nsMathMLmencloseFrame(nsStyleContext* aContext);
     122                 :   virtual ~nsMathMLmencloseFrame();
     123                 : 
     124                 :   nsresult PlaceInternal(nsRenderingContext& aRenderingContext,
     125                 :                          bool                 aPlaceOrigin,
     126                 :                          nsHTMLReflowMetrics& aDesiredSize,
     127                 :                          bool                 aWidthOnly);
     128                 :   
     129                 :   // functions to parse the "notation" attribute.
     130                 :   nsresult AddNotation(const nsAString& aNotation);
     131                 :   void InitNotations();
     132                 : 
     133                 :   // Description of the notations to draw
     134                 :   PRUint32 mNotationsToDraw;
     135               0 :   bool IsToDraw(nsMencloseNotation mask)
     136                 :   {
     137               0 :     return mask & mNotationsToDraw;
     138                 :   }
     139                 : 
     140                 :   nscoord mRuleThickness;
     141                 :   nsTArray<nsMathMLChar> mMathMLChar;
     142                 :   PRInt8 mLongDivCharIndex, mRadicalCharIndex;
     143                 :   nscoord mContentWidth;
     144                 :   nsresult AllocateMathMLChar(nsMencloseNotation mask);
     145                 : 
     146                 :   // Display a frame of the specified type.
     147                 :   // @param aType Type of frame to display
     148                 :   nsresult DisplayNotation(nsDisplayListBuilder* aBuilder,
     149                 :                            nsIFrame* aFrame, const nsRect& aRect,
     150                 :                            const nsDisplayListSet& aLists,
     151                 :                            nscoord aThickness, nsMencloseNotation aType);
     152                 : };
     153                 : 
     154                 : #endif /* nsMathMLmencloseFrame_h___ */

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