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