зеркало из https://github.com/mozilla/gecko-dev.git
99 строки
3.0 KiB
C++
99 строки
3.0 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 nsMathMLmpaddedFrame_h___
|
|
#define nsMathMLmpaddedFrame_h___
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "nsMathMLContainerFrame.h"
|
|
|
|
namespace mozilla {
|
|
class PresShell;
|
|
} // namespace mozilla
|
|
|
|
//
|
|
// <mpadded> -- adjust space around content
|
|
//
|
|
|
|
class nsMathMLmpaddedFrame final : public nsMathMLContainerFrame {
|
|
public:
|
|
NS_DECL_FRAMEARENA_HELPERS(nsMathMLmpaddedFrame)
|
|
|
|
friend nsIFrame* NS_NewMathMLmpaddedFrame(mozilla::PresShell* aPresShell,
|
|
ComputedStyle* aStyle);
|
|
|
|
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(ComputedStyle* aStyle,
|
|
nsPresContext* aPresContext)
|
|
: nsMathMLContainerFrame(aStyle, aPresContext, 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___ */
|