зеркало из https://github.com/mozilla/gecko-dev.git
107 строки
2.9 KiB
C++
107 строки
2.9 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 nsMathMLmpaddedFrame_h___
|
|
#define nsMathMLmpaddedFrame_h___
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "nsMathMLContainerFrame.h"
|
|
|
|
//
|
|
// <mpadded> -- adjust space around content
|
|
//
|
|
|
|
class nsMathMLmpaddedFrame : public nsMathMLContainerFrame {
|
|
public:
|
|
NS_DECL_FRAMEARENA_HELPERS(nsMathMLmpaddedFrame)
|
|
|
|
friend nsIFrame* NS_NewMathMLmpaddedFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
|
|
|
|
NS_IMETHOD
|
|
InheritAutomaticData(nsIFrame* aParent) override;
|
|
|
|
NS_IMETHOD
|
|
TransmitAutomaticData() override {
|
|
return TransmitAutomaticDataForMrowLikeElement();
|
|
}
|
|
|
|
virtual void
|
|
Reflow(nsPresContext* aPresContext,
|
|
ReflowOutput& aDesiredSize,
|
|
const ReflowInput& aReflowInput,
|
|
nsReflowStatus& aStatus) override;
|
|
|
|
virtual nsresult
|
|
Place(DrawTarget* aDrawTarget,
|
|
bool aPlaceOrigin,
|
|
ReflowOutput& aDesiredSize) override;
|
|
|
|
bool
|
|
IsMrowLike() override {
|
|
return mFrames.FirstChild() != mFrames.LastChild() ||
|
|
!mFrames.FirstChild();
|
|
}
|
|
|
|
protected:
|
|
explicit nsMathMLmpaddedFrame(nsStyleContext* aContext)
|
|
: nsMathMLContainerFrame(aContext, kClassID)
|
|
, mWidthSign(0)
|
|
, mHeightSign(0)
|
|
, mDepthSign(0)
|
|
, mLeadingSpaceSign(0)
|
|
, mVerticalOffsetSign(0)
|
|
, mWidthPseudoUnit(0)
|
|
, mHeightPseudoUnit(0)
|
|
, mDepthPseudoUnit(0)
|
|
, mLeadingSpacePseudoUnit(0)
|
|
, mVerticalOffsetPseudoUnit(0)
|
|
{}
|
|
|
|
virtual ~nsMathMLmpaddedFrame();
|
|
|
|
virtual nsresult
|
|
MeasureForWidth(DrawTarget* aDrawTarget,
|
|
ReflowOutput& aDesiredSize) override;
|
|
|
|
private:
|
|
nsCSSValue mWidth;
|
|
nsCSSValue mHeight;
|
|
nsCSSValue mDepth;
|
|
nsCSSValue mLeadingSpace;
|
|
nsCSSValue mVerticalOffset;
|
|
|
|
int32_t mWidthSign;
|
|
int32_t mHeightSign;
|
|
int32_t mDepthSign;
|
|
int32_t mLeadingSpaceSign;
|
|
int32_t mVerticalOffsetSign;
|
|
|
|
int32_t mWidthPseudoUnit;
|
|
int32_t mHeightPseudoUnit;
|
|
int32_t mDepthPseudoUnit;
|
|
int32_t mLeadingSpacePseudoUnit;
|
|
int32_t mVerticalOffsetPseudoUnit;
|
|
|
|
// helpers to process the attributes
|
|
void
|
|
ProcessAttributes();
|
|
|
|
static bool
|
|
ParseAttribute(nsString& aString,
|
|
int32_t& aSign,
|
|
nsCSSValue& aCSSValue,
|
|
int32_t& aPseudoUnit);
|
|
|
|
void
|
|
UpdateValue(int32_t aSign,
|
|
int32_t aPseudoUnit,
|
|
const nsCSSValue& aCSSValue,
|
|
const ReflowOutput& aDesiredSize,
|
|
nscoord& aValueToUpdate,
|
|
float aFontSizeInflation) const;
|
|
};
|
|
|
|
#endif /* nsMathMLmpaddedFrame_h___ */
|