gecko-dev/layout/mathml/nsMathMLmmultiscriptsFrame.h

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1.9 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 nsMathMLmmultiscriptsFrame_h___
#define nsMathMLmmultiscriptsFrame_h___
#include "mozilla/Attributes.h"
#include "nsMathMLContainerFrame.h"
//
// <mmultiscripts> -- attach prescripts and tensor indices to a base
// <msub> -- attach a subscript to a base
// <msubsup> -- attach a subscript-superscript pair to a base
// <msup> -- attach a superscript to a base
//
class nsMathMLmmultiscriptsFrame : public nsMathMLContainerFrame {
public:
NS_DECL_FRAMEARENA_HELPERS(nsMathMLmmultiscriptsFrame)
friend nsIFrame* NS_NewMathMLmmultiscriptsFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
NS_IMETHOD
TransmitAutomaticData() override;
virtual nsresult
Place(DrawTarget* aDrawTarget,
bool aPlaceOrigin,
ReflowOutput& aDesiredSize) override;
static nsresult
PlaceMultiScript(nsPresContext* aPresContext,
DrawTarget* aDrawTarget,
bool aPlaceOrigin,
ReflowOutput& aDesiredSize,
nsMathMLContainerFrame* aForFrame,
nscoord aUserSubScriptShift,
nscoord aUserSupScriptShift,
float aFontSizeInflation);
uint8_t
ScriptIncrement(nsIFrame* aFrame) override;
protected:
explicit nsMathMLmmultiscriptsFrame(nsStyleContext* aContext)
: nsMathMLContainerFrame(aContext, kClassID) {}
virtual ~nsMathMLmmultiscriptsFrame();
};
#endif /* nsMathMLmmultiscriptsFrame_h___ */