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