зеркало из https://github.com/mozilla/pjs.git
137 строки
4.8 KiB
C++
137 строки
4.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is Mozilla MathML Project.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* The University Of Queensland.
|
|
* Portions created by the Initial Developer are Copyright (C) 1999
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Roger B. Sidje <rbs@maths.uq.edu.au>
|
|
* David J. Fiddes <D.J.Fiddes@hw.ac.uk>
|
|
* Frederic Wang <fred.wang@free.fr>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#ifndef nsMathMLmfencedFrame_h___
|
|
#define nsMathMLmfencedFrame_h___
|
|
|
|
#include "nsCOMPtr.h"
|
|
#include "nsMathMLContainerFrame.h"
|
|
|
|
//
|
|
// <mfenced> -- surround content with a pair of fences
|
|
//
|
|
|
|
class nsMathMLmfencedFrame : public nsMathMLContainerFrame {
|
|
public:
|
|
NS_DECL_FRAMEARENA_HELPERS
|
|
|
|
friend nsIFrame* NS_NewMathMLmfencedFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
|
|
|
|
virtual void
|
|
SetAdditionalStyleContext(PRInt32 aIndex,
|
|
nsStyleContext* aStyleContext);
|
|
virtual nsStyleContext*
|
|
GetAdditionalStyleContext(PRInt32 aIndex) const;
|
|
|
|
NS_IMETHOD
|
|
InheritAutomaticData(nsIFrame* aParent);
|
|
|
|
NS_IMETHOD
|
|
SetInitialChildList(nsIAtom* aListName,
|
|
nsFrameList& aChildList);
|
|
|
|
NS_IMETHOD
|
|
Reflow(nsPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus);
|
|
|
|
NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aDirtyRect,
|
|
const nsDisplayListSet& aLists);
|
|
|
|
virtual nscoord
|
|
GetIntrinsicWidth(nsIRenderingContext* aRenderingContext);
|
|
|
|
NS_IMETHOD
|
|
AttributeChanged(PRInt32 aNameSpaceID,
|
|
nsIAtom* aAttribute,
|
|
PRInt32 aModType);
|
|
|
|
// override the base method because we must keep separators in sync
|
|
virtual nsresult
|
|
ChildListChanged(PRInt32 aModType);
|
|
|
|
// override the base method so that we can deal with fences and separators
|
|
virtual nscoord
|
|
FixInterFrameSpacing(nsHTMLReflowMetrics& aDesiredSize);
|
|
|
|
// helper routines to format the MathMLChars involved here
|
|
static nsresult
|
|
ReflowChar(nsPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
nsMathMLChar* aMathMLChar,
|
|
nsOperatorFlags aForm,
|
|
PRInt32 aScriptLevel,
|
|
nscoord axisHeight,
|
|
nscoord leading,
|
|
nscoord em,
|
|
nsBoundingMetrics& aContainerSize,
|
|
nscoord& aAscent,
|
|
nscoord& aDescent);
|
|
|
|
static void
|
|
PlaceChar(nsMathMLChar* aMathMLChar,
|
|
nscoord aDesiredSize,
|
|
nsBoundingMetrics& bm,
|
|
nscoord& dx);
|
|
|
|
protected:
|
|
nsMathMLmfencedFrame(nsStyleContext* aContext) : nsMathMLContainerFrame(aContext) {}
|
|
virtual ~nsMathMLmfencedFrame();
|
|
|
|
virtual PRIntn GetSkipSides() const { return 0; }
|
|
|
|
nsMathMLChar* mOpenChar;
|
|
nsMathMLChar* mCloseChar;
|
|
nsMathMLChar* mSeparatorsChar;
|
|
PRInt32 mSeparatorsCount;
|
|
|
|
// clean up
|
|
void
|
|
RemoveFencesAndSeparators();
|
|
|
|
// add fences and separators when all child frames are known
|
|
nsresult
|
|
CreateFencesAndSeparators(nsPresContext* aPresContext);
|
|
};
|
|
|
|
#endif /* nsMathMLmfencedFrame_h___ */
|