зеркало из https://github.com/mozilla/gecko-dev.git
57 строки
1.7 KiB
C++
57 строки
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 nsMathMLmspaceFrame_h___
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#define nsMathMLmspaceFrame_h___
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#include "mozilla/Attributes.h"
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#include "nsMathMLContainerFrame.h"
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//
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// <mspace> -- space
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//
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class nsMathMLmspaceFrame final : public nsMathMLContainerFrame {
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public:
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NS_DECL_FRAMEARENA_HELPERS(nsMathMLmspaceFrame)
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friend nsIFrame* NS_NewMathMLmspaceFrame(nsIPresShell* aPresShell,
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ComputedStyle* aStyle);
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NS_IMETHOD
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TransmitAutomaticData() override {
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// The REC defines the following elements to be space-like:
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// * an mtext, mspace, maligngroup, or malignmark element;
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mPresentationData.flags |= NS_MATHML_SPACE_LIKE;
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return NS_OK;
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}
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virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
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const ReflowInput& aReflowInput,
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nsReflowStatus& aStatus) override;
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protected:
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explicit nsMathMLmspaceFrame(ComputedStyle* aStyle)
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: nsMathMLContainerFrame(aStyle, kClassID),
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mWidth(0),
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mHeight(0),
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mDepth(0) {}
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virtual ~nsMathMLmspaceFrame();
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virtual nsresult MeasureForWidth(DrawTarget* aDrawTarget,
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ReflowOutput& aDesiredSize) override;
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private:
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nscoord mWidth;
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nscoord mHeight;
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nscoord mDepth;
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// helper method to initialize our member data
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void ProcessAttributes(nsPresContext* aPresContext);
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};
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#endif /* nsMathMLmspaceFrame_h___ */
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