michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef nsMathMLmpaddedFrame_h___
michael@0: #define nsMathMLmpaddedFrame_h___
michael@0: 
michael@0: #include "mozilla/Attributes.h"
michael@0: #include "nsMathMLContainerFrame.h"
michael@0: 
michael@0: //
michael@0: // <mpadded> -- adjust space around content  
michael@0: //
michael@0: 
michael@0: class nsMathMLmpaddedFrame : public nsMathMLContainerFrame {
michael@0: public:
michael@0:   NS_DECL_FRAMEARENA_HELPERS
michael@0: 
michael@0:   friend nsIFrame* NS_NewMathMLmpaddedFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
michael@0: 
michael@0:   NS_IMETHOD
michael@0:   InheritAutomaticData(nsIFrame* aParent) MOZ_OVERRIDE;
michael@0: 
michael@0:   NS_IMETHOD
michael@0:   TransmitAutomaticData() MOZ_OVERRIDE {
michael@0:     return TransmitAutomaticDataForMrowLikeElement();
michael@0:   }
michael@0: 
michael@0:   virtual nsresult
michael@0:   Reflow(nsPresContext*          aPresContext,
michael@0:          nsHTMLReflowMetrics&     aDesiredSize,
michael@0:          const nsHTMLReflowState& aReflowState,
michael@0:          nsReflowStatus&          aStatus) MOZ_OVERRIDE;
michael@0:   
michael@0:   virtual nsresult
michael@0:   Place(nsRenderingContext& aRenderingContext,
michael@0:         bool                 aPlaceOrigin,
michael@0:         nsHTMLReflowMetrics& aDesiredSize) MOZ_OVERRIDE;
michael@0: 
michael@0:   bool
michael@0:   IsMrowLike() MOZ_OVERRIDE {
michael@0:     return mFrames.FirstChild() != mFrames.LastChild() ||
michael@0:            !mFrames.FirstChild();
michael@0:   }
michael@0: 
michael@0: protected:
michael@0:   nsMathMLmpaddedFrame(nsStyleContext* aContext) : nsMathMLContainerFrame(aContext) {}
michael@0:   virtual ~nsMathMLmpaddedFrame();
michael@0:   
michael@0:   virtual nsresult
michael@0:   MeasureForWidth(nsRenderingContext& aRenderingContext,
michael@0:                   nsHTMLReflowMetrics& aDesiredSize) MOZ_OVERRIDE;
michael@0: 
michael@0: private:
michael@0:   nsCSSValue mWidth;
michael@0:   nsCSSValue mHeight;
michael@0:   nsCSSValue mDepth;
michael@0:   nsCSSValue mLeadingSpace;
michael@0:   nsCSSValue mVerticalOffset;
michael@0: 
michael@0:   int32_t    mWidthSign;
michael@0:   int32_t    mHeightSign;
michael@0:   int32_t    mDepthSign;
michael@0:   int32_t    mLeadingSpaceSign;
michael@0:   int32_t    mVerticalOffsetSign;
michael@0: 
michael@0:   int32_t    mWidthPseudoUnit;
michael@0:   int32_t    mHeightPseudoUnit;
michael@0:   int32_t    mDepthPseudoUnit;
michael@0:   int32_t    mLeadingSpacePseudoUnit;
michael@0:   int32_t    mVerticalOffsetPseudoUnit;
michael@0: 
michael@0:   // helpers to process the attributes
michael@0:   void
michael@0:   ProcessAttributes();
michael@0: 
michael@0:   static bool
michael@0:   ParseAttribute(nsString&   aString,
michael@0:                  int32_t&    aSign,
michael@0:                  nsCSSValue& aCSSValue,
michael@0:                  int32_t&    aPseudoUnit);
michael@0: 
michael@0:   void
michael@0:   UpdateValue(int32_t                  aSign,
michael@0:               int32_t                  aPseudoUnit,
michael@0:               const nsCSSValue&        aCSSValue,
michael@0:               const nsHTMLReflowMetrics& aDesiredSize,
michael@0:               nscoord&                 aValueToUpdate) const;
michael@0: };
michael@0: 
michael@0: #endif /* nsMathMLmpaddedFrame_h___ */