Files
UnrealEngine/Engine/Source/Editor/Persona/Private/AnimTimeline/SAnimOutlinerItem.h
2025-05-18 13:04:45 +08:00

75 lines
2.6 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "CoreMinimal.h"
#include "Widgets/Views/STableViewBase.h"
#include "Widgets/Views/STableRow.h"
#include "Widgets/Views/STreeView.h"
#include "AnimTimeline/AnimTimelineTrack.h"
class FAnimObject;
class SAnimTrack;
class SAnimOutlinerItem : public SMultiColumnTableRow<TSharedRef<FAnimTimelineTrack>>
{
public:
/** Delegate to invoke to create a new column for this row */
DECLARE_DELEGATE_RetVal_ThreeParams(TSharedRef<SWidget>, FOnGenerateWidgetForColumn, const TSharedRef<FAnimTimelineTrack>&, const FName&, const TSharedRef<SAnimOutlinerItem>&);
SLATE_BEGIN_ARGS(SAnimOutlinerItem) {}
/** Delegate to invoke to create a new column for this row */
SLATE_EVENT(FOnGenerateWidgetForColumn, OnGenerateWidgetForColumn)
/** Text to highlight when searching */
SLATE_ATTRIBUTE(FText, HighlightText)
SLATE_END_ARGS()
~SAnimOutlinerItem();
void Construct(const FArguments& InArgs, const TSharedRef<STableViewBase>& InOwnerTableView, const TSharedRef<FAnimTimelineTrack>& InTrack);
/** SWidget interface */
virtual void Tick(const FGeometry& AllottedGeometry, const double InCurrentTime, const float InDeltaTime) override;
virtual FVector2D ComputeDesiredSize(float LayoutScaleMultiplier) const override;
virtual void OnMouseEnter(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;
virtual void OnMouseLeave(const FPointerEvent& MouseEvent) override;
/** SMultiColumnTableRow interface */
virtual TSharedRef<SWidget> GenerateWidgetForColumn(const FName& ColumnId) override;
/** Get the track this item represents */
TSharedRef<FAnimTimelineTrack> GetTrack() const { return Track.Pin().ToSharedRef(); }
/** Add a reference to the specified track, keeping it alive until this row is destroyed */
void AddTrackAreaReference(const TSharedPtr<SAnimTrack>& InTrackWidget);
/** Get the text to highlight when searching */
TAttribute<FText> GetHighlightText() const { return HighlightText; }
private:
/** Get the label text for this item */
FText GetLabelText() const;
/** Get the hover state for this item */
bool ShouldAppearHovered() const;
private:
/** The track that we represent */
TWeakPtr<FAnimTimelineTrack> Track;
/** Cached reference to a track lane that we relate to. This keeps the track lane alive (it's a weak widget) as long as we are in view. */
TSharedPtr<SAnimTrack> TrackWidget;
/** Delegate to invoke to create a new column for this row */
FOnGenerateWidgetForColumn OnGenerateWidgetForColumn;
/** Text to highlight when searching */
TAttribute<FText> HighlightText;
/** Keep an internal IsHovered flag*/
bool bHovered;
};