mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-05 00:25:27 +00:00
127 lines
4.0 KiB
C++
127 lines
4.0 KiB
C++
/* -*- 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 nsMathMLmencloseFrame_h___
|
|
#define nsMathMLmencloseFrame_h___
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "nsMathMLContainerFrame.h"
|
|
|
|
//
|
|
// <menclose> -- enclose content with a stretching symbol such
|
|
// as a long division sign.
|
|
//
|
|
|
|
/*
|
|
The MathML REC describes:
|
|
|
|
The menclose element renders its content inside the enclosing notation
|
|
specified by its notation attribute. menclose accepts any number of arguments;
|
|
if this number is not 1, its contents are treated as a single "inferred mrow"
|
|
containing its arguments, as described in Section 3.1.3 Required Arguments.
|
|
*/
|
|
|
|
enum nsMencloseNotation
|
|
{
|
|
NOTATION_LONGDIV = 0x1,
|
|
NOTATION_RADICAL = 0x2,
|
|
NOTATION_ROUNDEDBOX = 0x4,
|
|
NOTATION_CIRCLE = 0x8,
|
|
NOTATION_LEFT = 0x10,
|
|
NOTATION_RIGHT = 0x20,
|
|
NOTATION_TOP = 0x40,
|
|
NOTATION_BOTTOM = 0x80,
|
|
NOTATION_UPDIAGONALSTRIKE = 0x100,
|
|
NOTATION_DOWNDIAGONALSTRIKE = 0x200,
|
|
NOTATION_VERTICALSTRIKE = 0x400,
|
|
NOTATION_HORIZONTALSTRIKE = 0x800,
|
|
NOTATION_UPDIAGONALARROW = 0x1000,
|
|
NOTATION_PHASORANGLE = 0x2000
|
|
};
|
|
|
|
class nsMathMLmencloseFrame : public nsMathMLContainerFrame {
|
|
public:
|
|
NS_DECL_FRAMEARENA_HELPERS
|
|
|
|
friend nsIFrame* NS_NewMathMLmencloseFrame(nsIPresShell* aPresShell,
|
|
nsStyleContext* aContext);
|
|
|
|
virtual nsresult
|
|
Place(nsRenderingContext& aRenderingContext,
|
|
bool aPlaceOrigin,
|
|
nsHTMLReflowMetrics& aDesiredSize) MOZ_OVERRIDE;
|
|
|
|
virtual nsresult
|
|
MeasureForWidth(nsRenderingContext& aRenderingContext,
|
|
nsHTMLReflowMetrics& aDesiredSize) MOZ_OVERRIDE;
|
|
|
|
virtual nsresult
|
|
AttributeChanged(int32_t aNameSpaceID,
|
|
nsIAtom* aAttribute,
|
|
int32_t aModType) MOZ_OVERRIDE;
|
|
|
|
virtual void
|
|
SetAdditionalStyleContext(int32_t aIndex,
|
|
nsStyleContext* aStyleContext) MOZ_OVERRIDE;
|
|
virtual nsStyleContext*
|
|
GetAdditionalStyleContext(int32_t aIndex) const MOZ_OVERRIDE;
|
|
|
|
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aDirtyRect,
|
|
const nsDisplayListSet& aLists) MOZ_OVERRIDE;
|
|
|
|
NS_IMETHOD
|
|
InheritAutomaticData(nsIFrame* aParent) MOZ_OVERRIDE;
|
|
|
|
NS_IMETHOD
|
|
TransmitAutomaticData() MOZ_OVERRIDE;
|
|
|
|
virtual nscoord
|
|
FixInterFrameSpacing(nsHTMLReflowMetrics& aDesiredSize) MOZ_OVERRIDE;
|
|
|
|
bool
|
|
IsMrowLike() MOZ_OVERRIDE {
|
|
return mFrames.FirstChild() != mFrames.LastChild() ||
|
|
!mFrames.FirstChild();
|
|
}
|
|
|
|
protected:
|
|
nsMathMLmencloseFrame(nsStyleContext* aContext);
|
|
virtual ~nsMathMLmencloseFrame();
|
|
|
|
nsresult PlaceInternal(nsRenderingContext& aRenderingContext,
|
|
bool aPlaceOrigin,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
bool aWidthOnly);
|
|
|
|
// functions to parse the "notation" attribute.
|
|
nsresult AddNotation(const nsAString& aNotation);
|
|
void InitNotations();
|
|
|
|
// Description of the notations to draw
|
|
uint32_t mNotationsToDraw;
|
|
bool IsToDraw(nsMencloseNotation mask)
|
|
{
|
|
return mask & mNotationsToDraw;
|
|
}
|
|
|
|
nscoord mRuleThickness;
|
|
nscoord mRadicalRuleThickness;
|
|
nsTArray<nsMathMLChar> mMathMLChar;
|
|
int8_t mLongDivCharIndex, mRadicalCharIndex;
|
|
nscoord mContentWidth;
|
|
nsresult AllocateMathMLChar(nsMencloseNotation mask);
|
|
|
|
// Display a frame of the specified type.
|
|
// @param aType Type of frame to display
|
|
void DisplayNotation(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, const nsRect& aRect,
|
|
const nsDisplayListSet& aLists,
|
|
nscoord aThickness, nsMencloseNotation aType);
|
|
};
|
|
|
|
#endif /* nsMathMLmencloseFrame_h___ */
|