158 lines
4.9 KiB
C++
158 lines
4.9 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "SlateFwd.h"
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#include "Widgets/SWidget.h"
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#include "ISequencer.h"
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#include "ISequencerSection.h"
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#include "TrackEditorThumbnail/TrackEditorThumbnail.h"
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#define UE_API MOVIESCENETOOLS_API
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class FLevelEditorViewportClient;
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class FMenuBuilder;
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class FSceneViewport;
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class FSequencerSectionPainter;
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class FTrackEditorThumbnailPool;
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class ISectionLayoutBuilder;
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struct FSlateBrush;
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struct FThumbnailCameraSettings
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{
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float AspectRatio;
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};
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/**
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* Thumbnail section, which paints and ticks the appropriate section.
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*/
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class FThumbnailSection
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: public ISequencerSection
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, public TSharedFromThis<FThumbnailSection>
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{
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public:
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/** Create and initialize a new instance. */
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UE_API FThumbnailSection(TSharedPtr<ISequencer> InSequencer, TSharedPtr<FTrackEditorThumbnailPool> InThumbnailPool, IViewportThumbnailClient* InViewportThumbanilClient, UMovieSceneSection& InSection);
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UE_API FThumbnailSection(TSharedPtr<ISequencer> InSequencer, TSharedPtr<FTrackEditorThumbnailPool> InThumbnailPool, ICustomThumbnailClient* InCustomThumbnailClient, UMovieSceneSection& InSection);
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/** Destructor. */
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UE_API ~FThumbnailSection();
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public:
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/** @return The sequencer widget owning the MovieScene section. */
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TSharedRef<SWidget> GetSequencerWidget()
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{
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return SequencerPtr.Pin()->GetSequencerWidget();
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}
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/** Enter rename mode for the section */
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UE_API void EnterRename();
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/** Get whether the text is renameable */
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virtual bool CanRename() const { return false; }
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/** Callback for getting the text of the track name text block. */
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virtual FText HandleThumbnailTextBlockText() const { return FText::GetEmpty(); }
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/** Callback for when the text of the track name text block has changed. */
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virtual void HandleThumbnailTextBlockTextCommitted(const FText& NewThumbnailName, ETextCommit::Type CommitType) { }
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public:
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/** Set this thumbnail section to draw a single thumbnail at the specified time */
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virtual void SetSingleTime(double GlobalTime) = 0;
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public:
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//~ ISequencerSection interface
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UE_API virtual void BuildSectionContextMenu(FMenuBuilder& MenuBuilder, const FGuid& ObjectBinding) override;
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UE_API virtual void BuildSectionSidebarMenu(FMenuBuilder& MenuBuilder, const FGuid& ObjectBinding) override;
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UE_API virtual TSharedRef<SWidget> GenerateSectionWidget() override;
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UE_API virtual float GetSectionGripSize() const override;
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UE_API virtual float GetSectionHeight(const UE::Sequencer::FViewDensityInfo& ViewDensity) const override;
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UE_API virtual UMovieSceneSection* GetSectionObject() override;
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UE_API virtual FText GetSectionTitle() const override;
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UE_API virtual int32 OnPaintSection( FSequencerSectionPainter& InPainter ) const override;
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UE_API virtual void Tick( const FGeometry& AllottedGeometry, const FGeometry& ParentGeometry, const double InCurrentTime, const float InDeltaTime ) override;
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protected:
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/** Called to force a redraw of this section's thumbnails */
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UE_API void RedrawThumbnails();
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/** Get the range that is currently visible in the section's time space */
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UE_API TRange<double> GetVisibleRange() const;
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/** Get the total range that thumbnails are to be generated for in the section's time space */
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UE_API TRange<double> GetTotalRange() const;
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/** Get rename visibility */
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UE_API EVisibility GetRenameVisibility() const;
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/** When renaming is started, show the rename widget */
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UE_API void OnEnterEditingMode();
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/** When renaming is completed, hide the rename widget */
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UE_API void OnExitEditingMode();
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UE_API void BuildThumbnailsMenu(FMenuBuilder& InMenuBuilder);
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protected:
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/** The section we are visualizing. */
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UMovieSceneSection* Section;
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/** The parent sequencer we are a part of. */
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TWeakPtr<ISequencer> SequencerPtr;
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/** A list of all thumbnails this section has. */
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FTrackEditorThumbnailCache ThumbnailCache;
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/** Saved playback status. Used for restoring state when rendering thumbnails */
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EMovieScenePlayerStatus::Type SavedPlaybackStatus;
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/** Rename widget */
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TSharedPtr<SInlineEditableTextBlock> NameWidget;
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/** Fade brush. */
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const FSlateBrush* WhiteBrush;
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/** Additional draw effects */
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ESlateDrawEffect AdditionalDrawEffect;
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enum class ETimeSpace
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{
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Global,
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Local,
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};
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/** Enumeration value specifyin in which time-space to generate thumbnails */
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ETimeSpace TimeSpace;
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FDelegateHandle RedrawThumbnailDelegateHandle;
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};
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/**
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* Thumbnail section, which paints and ticks the appropriate section.
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*/
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class FViewportThumbnailSection
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: public FThumbnailSection
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, public IViewportThumbnailClient
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{
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public:
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/** Create and initialize a new instance. */
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UE_API FViewportThumbnailSection(TSharedPtr<ISequencer> InSequencer, TSharedPtr<FTrackEditorThumbnailPool> InThumbnailPool, UMovieSceneSection& InSection);
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//~ IViewportThumbnailClient interface
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UE_API virtual void PreDraw(FTrackEditorThumbnail& Thumbnail) override;
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UE_API virtual void PostDraw(FTrackEditorThumbnail& Thumbnail) override;
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};
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#undef UE_API
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