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105 lines
3.7 KiB
C++
105 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla MathML Project.
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*
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* The Initial Developer of the Original Code is
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* The University Of Queensland.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Roger B. Sidje <rbs@maths.uq.edu.au>
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* David J. Fiddes <D.J.Fiddes@hw.ac.uk>
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* Vilya Harvey <vilya@nag.co.uk>
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* Shyjan Mahamud <mahamud@cs.cmu.edu>
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* Karl Tomlinson <karlt+@karlt.net>, Mozilla Corporation
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsMathMLmsqrtFrame.h"
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//
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// <msqrt> -- form a radical - implementation
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//
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//NOTE:
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// The code assumes that TeX fonts are picked.
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// There is no fall-back to draw the branches of the sqrt explicitly
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// in the case where TeX fonts are not there. In general, there are no
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// fall-back(s) in MathML when some (freely-downloadable) fonts are missing.
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// Otherwise, this will add much work and unnecessary complexity to the core
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// MathML engine. Assuming that authors have the free fonts is part of the
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// deal. We are not responsible for cases of misconfigurations out there.
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nsIFrame*
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NS_NewMathMLmsqrtFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
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{
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return new (aPresShell) nsMathMLmsqrtFrame(aContext);
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsMathMLmsqrtFrame)
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nsMathMLmsqrtFrame::nsMathMLmsqrtFrame(nsStyleContext* aContext) :
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nsMathMLmencloseFrame(aContext)
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{
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}
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nsMathMLmsqrtFrame::~nsMathMLmsqrtFrame()
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{
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}
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NS_IMETHODIMP
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nsMathMLmsqrtFrame::Init(nsIContent* aContent,
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nsIFrame* aParent,
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nsIFrame* aPrevInFlow)
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{
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nsresult rv = nsMathMLContainerFrame::Init(aContent, aParent, aPrevInFlow);
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AllocateMathMLChar(NOTATION_RADICAL);
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mNotationsToDraw |= NOTATION_RADICAL;
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return rv;
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}
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NS_IMETHODIMP
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nsMathMLmsqrtFrame::InheritAutomaticData(nsIFrame* aParent)
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{
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nsMathMLContainerFrame::InheritAutomaticData(aParent);
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mPresentationData.flags |= NS_MATHML_STRETCH_ALL_CHILDREN_VERTICALLY;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsMathMLmsqrtFrame::AttributeChanged(PRInt32 aNameSpaceID,
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nsIAtom* aAttribute,
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PRInt32 aModType)
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{
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return nsMathMLContainerFrame::
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AttributeChanged(aNameSpaceID, aAttribute, aModType);
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}
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