mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-26 06:11:37 +00:00
2f9688c14e
Additionally, this patch makes `nsFrame.h` stop including `nsIPresShell.h` and makes each users include `mozilla/PresShell.h` instead. So, this improves rebuild performance of `nsIPresShell.h` (and `mozilla/PresShell.h` in the future). Note that due to `nsIFrame::PresShell()`, `mozilla::` prefix is necessary for `PresShell` in a lot of classes which are derived from `nsIFrame` even in `.cpp` files. Differential Revision: https://phabricator.services.mozilla.com/D27476 --HG-- extra : moz-landing-system : lando
119 lines
3.9 KiB
C++
119 lines
3.9 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 nsMathMLmencloseFrame_h___
|
|
#define nsMathMLmencloseFrame_h___
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "mozilla/EnumSet.h"
|
|
#include "nsMathMLContainerFrame.h"
|
|
|
|
namespace mozilla {
|
|
class PresShell;
|
|
} // namespace mozilla
|
|
|
|
//
|
|
// <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,
|
|
NOTATION_RADICAL,
|
|
NOTATION_ROUNDEDBOX,
|
|
NOTATION_CIRCLE,
|
|
NOTATION_LEFT,
|
|
NOTATION_RIGHT,
|
|
NOTATION_TOP,
|
|
NOTATION_BOTTOM,
|
|
NOTATION_UPDIAGONALSTRIKE,
|
|
NOTATION_DOWNDIAGONALSTRIKE,
|
|
NOTATION_VERTICALSTRIKE,
|
|
NOTATION_HORIZONTALSTRIKE,
|
|
NOTATION_UPDIAGONALARROW,
|
|
NOTATION_PHASORANGLE
|
|
};
|
|
|
|
class nsMathMLmencloseFrame : public nsMathMLContainerFrame {
|
|
public:
|
|
NS_DECL_FRAMEARENA_HELPERS(nsMathMLmencloseFrame)
|
|
|
|
friend nsIFrame* NS_NewMathMLmencloseFrame(mozilla::PresShell* aPresShell,
|
|
ComputedStyle* aStyle);
|
|
|
|
virtual nsresult Place(DrawTarget* aDrawTarget, bool aPlaceOrigin,
|
|
ReflowOutput& aDesiredSize) override;
|
|
|
|
virtual nsresult MeasureForWidth(DrawTarget* aDrawTarget,
|
|
ReflowOutput& aDesiredSize) override;
|
|
|
|
virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
|
|
int32_t aModType) override;
|
|
|
|
virtual void SetAdditionalComputedStyle(
|
|
int32_t aIndex, ComputedStyle* aComputedStyle) override;
|
|
virtual ComputedStyle* GetAdditionalComputedStyle(
|
|
int32_t aIndex) const override;
|
|
|
|
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayListSet& aLists) override;
|
|
|
|
NS_IMETHOD
|
|
InheritAutomaticData(nsIFrame* aParent) override;
|
|
|
|
NS_IMETHOD
|
|
TransmitAutomaticData() override;
|
|
|
|
virtual nscoord FixInterFrameSpacing(ReflowOutput& aDesiredSize) override;
|
|
|
|
bool IsMrowLike() override {
|
|
return mFrames.FirstChild() != mFrames.LastChild() || !mFrames.FirstChild();
|
|
}
|
|
|
|
protected:
|
|
explicit nsMathMLmencloseFrame(ComputedStyle* aStyle,
|
|
nsPresContext* aPresContext,
|
|
ClassID aID = kClassID);
|
|
virtual ~nsMathMLmencloseFrame();
|
|
|
|
nsresult PlaceInternal(DrawTarget* aDrawTarget, bool aPlaceOrigin,
|
|
ReflowOutput& aDesiredSize, bool aWidthOnly);
|
|
|
|
// functions to parse the "notation" attribute.
|
|
nsresult AddNotation(const nsAString& aNotation);
|
|
void InitNotations();
|
|
|
|
// Description of the notations to draw
|
|
mozilla::EnumSet<nsMencloseNotation> mNotationsToDraw;
|
|
bool IsToDraw(nsMencloseNotation notation) {
|
|
return mNotationsToDraw.contains(notation);
|
|
}
|
|
|
|
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___ */
|