зеркало из https://github.com/mozilla/gecko-dev.git
103 строки
3.2 KiB
C++
103 строки
3.2 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 nsMathMLmoFrame_h___
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#define nsMathMLmoFrame_h___
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#include "mozilla/Attributes.h"
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#include "nsMathMLTokenFrame.h"
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#include "nsMathMLChar.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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NS_DECL_FRAMEARENA_HELPERS
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friend nsIFrame* NS_NewMathMLmoFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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virtual eMathMLFrameType GetMathMLFrameType() MOZ_OVERRIDE;
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virtual void
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SetAdditionalStyleContext(int32_t aIndex,
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nsStyleContext* aStyleContext) MOZ_OVERRIDE;
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virtual nsStyleContext*
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GetAdditionalStyleContext(int32_t aIndex) const MOZ_OVERRIDE;
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists) MOZ_OVERRIDE;
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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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NS_IMETHOD
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SetInitialChildList(ChildListID aListID,
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nsFrameList& aChildList) MOZ_OVERRIDE;
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NS_IMETHOD
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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 void MarkIntrinsicWidthsDirty() MOZ_OVERRIDE;
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virtual void
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GetIntrinsicWidthMetrics(nsRenderingContext* aRenderingContext,
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nsHTMLReflowMetrics& aDesiredSize) MOZ_OVERRIDE;
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NS_IMETHOD
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AttributeChanged(int32_t aNameSpaceID,
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nsIAtom* aAttribute,
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int32_t aModType) MOZ_OVERRIDE;
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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(nsRenderingContext& aRenderingContext,
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nsStretchDirection aStretchDirection,
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nsBoundingMetrics& aContainerSize,
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nsHTMLReflowMetrics& aDesiredStretchSize) MOZ_OVERRIDE;
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virtual nsresult
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ChildListChanged(int32_t aModType) MOZ_OVERRIDE
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{
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ProcessTextData();
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return nsMathMLContainerFrame::ChildListChanged(aModType);
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}
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protected:
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nsMathMLmoFrame(nsStyleContext* aContext) : nsMathMLTokenFrame(aContext) {}
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virtual ~nsMathMLmoFrame();
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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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bool UseMathMLChar();
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// overload the base method so that we can setup our nsMathMLChar
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void ProcessTextData();
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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();
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// helper to double check thar our char should be rendered as a selected char
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bool
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IsFrameInSelection(nsIFrame* aFrame);
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};
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#endif /* nsMathMLmoFrame_h___ */
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