117 lines
3.7 KiB
C++
117 lines
3.7 KiB
C++
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the 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 The University Of
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* Queensland. Portions created by The University Of Queensland are
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* Copyright (C) 1999 The University Of Queensland. 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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* Shyjan Mahamud <mahamud@cs.cmu.edu>
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*/
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#ifndef nsMathMLmoFrame_h___
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#define nsMathMLmoFrame_h___
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#include "nsCOMPtr.h"
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#include "nsMathMLTokenFrame.h"
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//
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// <mo> -- operator, fence, or separator
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//
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class nsMathMLmoFrame : public nsMathMLTokenFrame {
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public:
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friend nsresult NS_NewMathMLmoFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame);
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NS_IMETHOD
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GetFrameType(nsIAtom** aType) const;
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NS_IMETHOD
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SetAdditionalStyleContext(PRInt32 aIndex,
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nsIStyleContext* aStyleContext);
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NS_IMETHOD
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GetAdditionalStyleContext(PRInt32 aIndex,
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nsIStyleContext** aStyleContext) const;
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NS_IMETHOD
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Paint(nsIPresContext* aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsFramePaintLayer aWhichLayer,
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PRUint32 aFlags = 0);
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NS_IMETHOD
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InheritAutomaticData(nsIPresContext* aPresContext,
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nsIFrame* aParent);
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NS_IMETHOD
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TransmitAutomaticData(nsIPresContext* aPresContext);
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NS_IMETHOD
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Reflow(nsIPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus);
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NS_IMETHOD
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ReflowDirtyChild(nsIPresShell* aPresShell,
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nsIFrame* aChild);
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NS_IMETHOD
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AttributeChanged(nsIPresContext* aPresContext,
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nsIContent* aContent,
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PRInt32 aNameSpaceID,
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nsIAtom* aAttribute,
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PRInt32 aModType,
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PRInt32 aHint);
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// This method is called by the parent frame to ask <mo>
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// to stretch itself.
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NS_IMETHOD
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Stretch(nsIPresContext* aPresContext,
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nsIRenderingContext& aRenderingContext,
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nsStretchDirection aStretchDirection,
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nsBoundingMetrics& aContainerSize,
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nsHTMLReflowMetrics& aDesiredStretchSize);
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protected:
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nsMathMLmoFrame();
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virtual ~nsMathMLmoFrame();
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virtual PRIntn GetSkipSides() const { return 0; }
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nsMathMLChar mMathMLChar; // Here is the MathMLChar that will deal with the operator.
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nsOperatorFlags mFlags;
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float mMinSize;
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float mMaxSize;
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// overload the base method so that we can setup our nsMathMLChar
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virtual void
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ProcessTextData(nsIPresContext* aPresContext);
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// helper to get our 'form' and lookup in the Operator Dictionary to fetch
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// our default data that may come from there, and to complete the setup
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// using attributes that we may have
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void
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ProcessOperatorData(nsIPresContext* aPresContext);
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// helper to double check thar our char should be rendered as a selected char
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PRBool
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IsFrameInSelection(nsIPresContext* aPresContext,
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nsIFrame* aFrame);
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};
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#endif /* nsMathMLmoFrame_h___ */
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