91 lines
2.6 KiB
C++
91 lines
2.6 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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*/
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#ifndef nsMathMLmpaddedFrame_h___
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#define nsMathMLmpaddedFrame_h___
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#include "nsCOMPtr.h"
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#include "nsMathMLContainerFrame.h"
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//
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// <mpadded> -- adjust space around content
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//
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class nsMathMLmpaddedFrame : public nsMathMLContainerFrame {
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public:
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friend nsresult NS_NewMathMLmpaddedFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame);
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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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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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protected:
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nsMathMLmpaddedFrame();
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virtual ~nsMathMLmpaddedFrame();
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virtual PRIntn GetSkipSides() const { return 0; }
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private:
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nsCSSValue mWidth;
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nsCSSValue mHeight;
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nsCSSValue mDepth;
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nsCSSValue mLeftSpace;
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PRInt32 mWidthSign;
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PRInt32 mHeightSign;
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PRInt32 mDepthSign;
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PRInt32 mLeftSpaceSign;
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PRInt32 mWidthPseudoUnit;
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PRInt32 mHeightPseudoUnit;
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PRInt32 mDepthPseudoUnit;
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PRInt32 mLeftSpacePseudoUnit;
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// helpers to process the attributes
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void
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ProcessAttributes(nsIPresContext* aPresContext);
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static PRBool
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ParseAttribute(nsString& aString,
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PRInt32& aSign,
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nsCSSValue& aCSSValue,
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PRInt32& aPseudoUnit);
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static void
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UpdateValue(nsIPresContext* aPresContext,
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nsIStyleContext* aStyleContext,
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PRInt32 aSign,
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PRInt32 aPseudoUnit,
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nsCSSValue& aCSSValue,
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nscoord aLeftSpace,
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nsBoundingMetrics& aBoundingMetrics,
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nscoord& aValueToUpdate);
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};
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#endif /* nsMathMLmpaddedFrame_h___ */
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