Mozilla/mozilla/layout/mathml/base/src/nsMathMLmstyleFrame.h

79 lines
2.6 KiB
C++

/*
* 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 University Of Queensland are
* Copyright (C) 1999 The University Of Queensland. All Rights Reserved.
*
* Contributor(s):
* Roger B. Sidje <rbs@maths.uq.edu.au>
* David J. Fiddes <D.J.Fiddes@hw.ac.uk>
*/
#ifndef nsMathMLmstyleFrame_h___
#define nsMathMLmstyleFrame_h___
#include "nsCOMPtr.h"
#include "nsMathMLContainerFrame.h"
//
// <mstyle> -- style change
//
class nsMathMLmstyleFrame : public nsMathMLContainerFrame {
public:
friend nsresult NS_NewMathMLmstyleFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame);
NS_IMETHOD
Init(nsIPresContext* aPresContext,
nsIContent* aContent,
nsIFrame* aParent,
nsIStyleContext* aContext,
nsIFrame* aPrevInFlow);
NS_IMETHOD
UpdatePresentationData(PRInt32 aScriptLevelIncrement,
PRUint32 aFlagsValues,
PRUint32 aFlagsToUpdate);
NS_IMETHOD
UpdatePresentationDataFromChildAt(nsIPresContext* aPresContext,
PRInt32 aFirstIndex,
PRInt32 aLastIndex,
PRInt32 aScriptLevelIncrement,
PRUint32 aFlagsValues,
PRUint32 aFlagsToUpdate);
NS_IMETHOD
SetInitialChildList(nsIPresContext* aPresContext,
nsIAtom* aListName,
nsIFrame* aChildList)
{
nsresult rv;
rv = nsMathMLContainerFrame::SetInitialChildList(aPresContext, aListName, aChildList);
// This call is peculiar to <mstyle> and will quickly return if there is nothing to update
UpdatePresentationDataFromChildAt(aPresContext, 0, -1, 0,
NS_MATHML_DISPLAYSTYLE & mPresentationData.flags,
NS_MATHML_DISPLAYSTYLE);
return rv;
}
protected:
nsMathMLmstyleFrame();
virtual ~nsMathMLmstyleFrame();
virtual PRIntn GetSkipSides() const { return 0; }
};
#endif /* nsMathMLmstyleFrame_h___ */