зеркало из https://github.com/mozilla/gecko-dev.git
101 строка
3.2 KiB
C++
101 строка
3.2 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 nsMathMLmoFrame_h___
|
|
#define nsMathMLmoFrame_h___
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "nsMathMLTokenFrame.h"
|
|
#include "nsMathMLChar.h"
|
|
|
|
namespace mozilla {
|
|
class PresShell;
|
|
} // namespace mozilla
|
|
|
|
//
|
|
// <mo> -- operator, fence, or separator
|
|
//
|
|
|
|
class nsMathMLmoFrame final : public nsMathMLTokenFrame {
|
|
public:
|
|
NS_DECL_FRAMEARENA_HELPERS(nsMathMLmoFrame)
|
|
|
|
friend nsIFrame* NS_NewMathMLmoFrame(mozilla::PresShell* aPresShell,
|
|
ComputedStyle* aStyle);
|
|
|
|
eMathMLFrameType GetMathMLFrameType() override;
|
|
|
|
void DidSetComputedStyle(ComputedStyle* aOldStyle) override;
|
|
|
|
void BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayListSet& aLists) override;
|
|
|
|
NS_IMETHOD
|
|
InheritAutomaticData(nsIFrame* aParent) override;
|
|
|
|
NS_IMETHOD
|
|
TransmitAutomaticData() override;
|
|
|
|
void SetInitialChildList(ChildListID aListID,
|
|
nsFrameList&& aChildList) override;
|
|
|
|
virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
|
|
const ReflowInput& aReflowInput,
|
|
nsReflowStatus& aStatus) override;
|
|
|
|
nsresult Place(DrawTarget* aDrawTarget, const PlaceFlags& aFlags,
|
|
ReflowOutput& aDesiredSize) override;
|
|
|
|
virtual void MarkIntrinsicISizesDirty() override;
|
|
|
|
virtual void GetIntrinsicISizeMetrics(gfxContext* aRenderingContext,
|
|
ReflowOutput& aDesiredSize) override;
|
|
|
|
virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
|
|
int32_t aModType) override;
|
|
|
|
// This method is called by the parent frame to ask <mo>
|
|
// to stretch itself.
|
|
NS_IMETHOD
|
|
Stretch(DrawTarget* aDrawTarget, nsStretchDirection aStretchDirection,
|
|
nsBoundingMetrics& aContainerSize,
|
|
ReflowOutput& aDesiredStretchSize) override;
|
|
|
|
virtual nsresult ChildListChanged(int32_t aModType) override {
|
|
ProcessTextData();
|
|
return nsMathMLContainerFrame::ChildListChanged(aModType);
|
|
}
|
|
|
|
protected:
|
|
explicit nsMathMLmoFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
|
|
: nsMathMLTokenFrame(aStyle, aPresContext, kClassID),
|
|
mFlags(0),
|
|
mMinSize(0),
|
|
mMaxSize(0) {}
|
|
virtual ~nsMathMLmoFrame();
|
|
|
|
nsMathMLChar
|
|
mMathMLChar; // Here is the MathMLChar that will deal with the operator.
|
|
nsOperatorFlags mFlags;
|
|
float mMinSize;
|
|
float mMaxSize;
|
|
|
|
bool UseMathMLChar();
|
|
|
|
// overload the base method so that we can setup our nsMathMLChar
|
|
void ProcessTextData();
|
|
|
|
// helper to get our 'form' and lookup in the Operator Dictionary to fetch
|
|
// our default data that may come from there, and to complete the setup
|
|
// using attributes that we may have
|
|
void ProcessOperatorData();
|
|
|
|
// helper to double check thar our char should be rendered as a selected char
|
|
bool IsFrameInSelection(nsIFrame* aFrame);
|
|
};
|
|
|
|
#endif /* nsMathMLmoFrame_h___ */
|