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
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/
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
15 * The Original Code is Mozilla MathML Project.
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.
23 * Roger B. Sidje <rbs@maths.uq.edu.au>
24 * David J. Fiddes <D.J.Fiddes@hw.ac.uk>
25 * Frederic Wang <fred.wang@free.fr>
27 * Alternatively, the contents of this file may be used under the terms of
28 * either of the GNU General Public License Version 2 or later (the "GPL"),
29 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
30 * in which case the provisions of the GPL or the LGPL are applicable instead
31 * of those above. If you wish to allow use of your version of this file only
32 * under the terms of either the GPL or the LGPL, and not to allow others to
33 * use your version of this file under the terms of the MPL, indicate your
34 * decision by deleting the provisions above and replace them with the notice
35 * and other provisions required by the GPL or the LGPL. If you do not delete
36 * the provisions above, a recipient may use your version of this file under
37 * the terms of any one of the MPL, the GPL or the LGPL.
39 * ***** END LICENSE BLOCK ***** */
41 #ifndef nsMathMLmfencedFrame_h
42 #define nsMathMLmfencedFrame_h
45 #include "nsMathMLContainerFrame.h"
48 // <mfenced> -- surround content with a pair of fences
51 class nsMathMLmfencedFrame
: public nsMathMLContainerFrame
{
53 NS_DECL_FRAMEARENA_HELPERS
55 friend nsIFrame
* NS_NewMathMLmfencedFrame(nsIPresShell
* aPresShell
, nsStyleContext
* aContext
);
58 SetAdditionalStyleContext(PRInt32 aIndex
,
59 nsStyleContext
* aStyleContext
);
60 virtual nsStyleContext
*
61 GetAdditionalStyleContext(PRInt32 aIndex
) const;
64 InheritAutomaticData(nsIFrame
* aParent
);
67 SetInitialChildList(nsIAtom
* aListName
,
68 nsFrameList
& aChildList
);
71 Reflow(nsPresContext
* aPresContext
,
72 nsHTMLReflowMetrics
& aDesiredSize
,
73 const nsHTMLReflowState
& aReflowState
,
74 nsReflowStatus
& aStatus
);
76 NS_IMETHOD
BuildDisplayList(nsDisplayListBuilder
* aBuilder
,
77 const nsRect
& aDirtyRect
,
78 const nsDisplayListSet
& aLists
);
81 GetIntrinsicWidth(nsIRenderingContext
* aRenderingContext
);
84 AttributeChanged(PRInt32 aNameSpaceID
,
88 // override the base method because we must keep separators in sync
90 ChildListChanged(PRInt32 aModType
);
92 // override the base method so that we can deal with fences and separators
94 FixInterFrameSpacing(nsHTMLReflowMetrics
& aDesiredSize
);
96 // helper routines to format the MathMLChars involved here
98 ReflowChar(nsPresContext
* aPresContext
,
99 nsIRenderingContext
& aRenderingContext
,
100 nsMathMLChar
* aMathMLChar
,
101 nsOperatorFlags aForm
,
102 PRInt32 aScriptLevel
,
106 nsBoundingMetrics
& aContainerSize
,
111 PlaceChar(nsMathMLChar
* aMathMLChar
,
112 nscoord aDesiredSize
,
113 nsBoundingMetrics
& bm
,
117 nsMathMLmfencedFrame(nsStyleContext
* aContext
) : nsMathMLContainerFrame(aContext
) {}
118 virtual ~nsMathMLmfencedFrame();
120 virtual PRIntn
GetSkipSides() const { return 0; }
122 nsMathMLChar
* mOpenChar
;
123 nsMathMLChar
* mCloseChar
;
124 nsMathMLChar
* mSeparatorsChar
;
125 PRInt32 mSeparatorsCount
;
129 RemoveFencesAndSeparators();
131 // add fences and separators when all child frames are known
133 CreateFencesAndSeparators(nsPresContext
* aPresContext
);
136 #endif /* nsMathMLmfencedFrame_h */