Files
UnrealEngine/Engine/Source/Editor/Sequencer/Private/Widgets/SSequencerLayerBar.h
2025-05-18 13:04:45 +08:00

71 lines
2.0 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "Math/Range.h"
#include "Misc/FrameNumber.h"
#include "Widgets/SCompoundWidget.h"
#include "Widgets/DeclarativeSyntaxSupport.h"
#include "MVVM/Extensions/ITrackLaneExtension.h"
#include "MVVM/Extensions/ViewModelExtensionCollection.h"
class ISequencer;
class FSequencer;
class FScopedTransaction;
class FSequencerDisplayNode;
struct FTimeToPixel;
namespace UE
{
namespace Sequencer
{
class FLayerBarModel;
class FSequencerEditorViewModel;
class FViewModel;
class ILayerBarExtension;
class STrackAreaView;
class SSequencerLayerBar
: public SCompoundWidget
, public ITrackLaneWidget
{
public:
SLATE_BEGIN_ARGS(SSequencerLayerBar) {}
SLATE_END_ARGS()
void Construct(const FArguments& InArgs, TWeakPtr<STrackAreaView> InWeakTrackArea, TWeakPtr<FSequencerEditorViewModel> InWeakEditor, TWeakPtr<FLayerBarModel> InWeakLayerBar);
TSharedPtr<FLayerBarModel> GetLayerBarModel() const;
TSharedPtr<FSequencer> GetSequencer() const;
private:
/*~ ITrackLaneWidget interface */
TSharedRef<const SWidget> AsWidget() const override;
FTrackLaneScreenAlignment GetAlignment(const ITrackLaneWidgetSpace& ScreenSpace, const FGeometry& InParentGeometry) const override;
/*~ SCompoundWidget interface */
int32 OnPaint( const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled ) const override;
FReply OnMouseButtonDown(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;
FReply OnMouseButtonUp(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;
void OnMouseEnter(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;
void OnMouseLeave(const FPointerEvent& MouseEvent) override;
EVisibility GetHandleVisibility() const;
private:
TWeakPtr<FLayerBarModel> WeakLayerBar;
TWeakPtr<FSequencerEditorViewModel> WeakEditor;
TWeakPtr<STrackAreaView> WeakTrackArea;
};
} // namespace Sequencer
} // namespace UE