Mozilla/mozilla/layout/mathml/base/src/nsMathMLmoFrame.h
rbs%maths.uq.edu.au daf51ae193 Revamp of the architecture for stretchy symbols so that nsMathMLChar only deals with the atomic stretchy task.
git-svn-id: svn://10.0.0.236/trunk@50414 18797224-902f-48f8-a5cc-f745e15eee43
1999-10-12 02:12:36 +00:00

75 lines
2.2 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 nsMathMLmoFrame_h___
#define nsMathMLmoFrame_h___
#include "nsCOMPtr.h"
#include "nsMathMLContainerFrame.h"
//
// <mo> -- operator, fence, or separator
//
class nsMathMLmoFrame : public nsMathMLContainerFrame {
public:
friend nsresult NS_NewMathMLmoFrame(nsIFrame** aNewFrame);
NS_IMETHOD
Init(nsIPresContext& aPresContext,
nsIContent* aContent,
nsIFrame* aParent,
nsIStyleContext* aContext,
nsIFrame* aPrevInFlow);
NS_IMETHOD
Paint(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsFramePaintLayer aWhichLayer);
// This method is called by the parent frame to ask <mo>
// to stretch itself.
NS_IMETHOD
Stretch(nsIPresContext& aPresContext,
nsStretchDirection aStretchDirection,
nsCharMetrics& aContainerSize,
nsCharMetrics& aDesiredStretchSize);
// helper method to lookup the operator dictionary and initialize our member data
void InitData();
protected:
nsMathMLmoFrame();
virtual ~nsMathMLmoFrame();
virtual PRIntn GetSkipSides() const { return 0; }
nsMathMLChar mMathMLChar; // Here is the MathChar that will deal with the operator.
nsOperatorFlags mFlags;
float mLeftSpace;
float mRightSpace;
nsPoint mCharOffset;
};
#endif /* nsMathMLmoFrame_h___ */