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  3. SLevelViewport

SLevelViewport

This implementation is only present so that ULevelViewportToolBarContext & UViewportToolbarContext continues to have a valid public pointer.

API > API/Editor > API/Editor/LevelEditor

Encapsulates an SViewport and an SLevelViewportToolBar

   
Name SLevelViewport
Type class
Header File /Engine/Source/Editor/LevelEditor/Public/SLevelViewport.h
Include Path #include "SLevelViewport.h"

Syntax

class SLevelViewport :  
    public SAssetEditorViewport,  
    public IAssetViewport

Inheritance Hierarchy

Implements Interfaces

Constructors

Name Remarks Include Path Unreal Specifiers

SLevelViewport()

   SLevelViewport.h  

Destructors

Name Remarks Include Path Unreal Specifiers

~SLevelViewport()

   SLevelViewport.h  

Classes

Name Remarks
FViewportActorPreview Contains information about an actor being previewed within this viewport

Structs

Name Remarks
EViewTransition Types of transition effects we support
FArguments  

Constants

Name Type Remarks Include Path
bInViewportMenuEnabled bool   SLevelViewport.h

Variables

Protected

Name Type Remarks Include Path Unreal Specifiers
ActionableMessageViewportWidget TSharedPtr< SActionableMessageViewportWidget > Viewport widget for warning messages SLevelViewport.h  
ActiveViewport TSharedPtr< class FSceneViewport > Active Slate viewport for rendering and I/O (Could be a pie viewport) SLevelViewport.h  
ActorPreviewHorizontalBox TSharedPtr< SHorizontalBox > Viewport horizontal box used internally for drawing actor previews on top of the level viewport SLevelViewport.h  
ActorPreviews TArray< FViewportActorPreview > List of actor preview objects SLevelViewport.h  
AlwaysPreviewActors TSet< TWeakObjectPtr< AActor > > Storage for actors we always want to preview. This comes from MU transactions . SLevelViewport.h  
bIsInViewportMenuInitialized bool   SLevelViewport.h  
bIsInViewportMenuShowing bool   SLevelViewport.h  
BlackBackground const FSlateBrush * The brush to use for a black background SLevelViewport.h  
bNeedToUpdatePreviews bool Flag to know if we need to update the previews which is handled in the tick. SLevelViewport.h  
bPIEContainsFocus bool Whether the PIE view contains focus (even if not captured), if so we disable throttling. SLevelViewport.h  
bPIEHasFocus bool Whether the PIE view has focus so we can track when to reshow the mouse control label SLevelViewport.h  
bShowEditorToolbar bool Whether to show the editor toolbar SLevelViewport.h  
bShowImmersivePIEToolbar bool Whether to show the in-PIE toolbar in immersive mode SLevelViewport.h  
bShowPIEToolbar bool Whether to show the in-PIE toolbar SLevelViewport.h  
bViewTransitionAnimPending bool True if we want to kick off a transition animation but are waiting for the next tick to do so SLevelViewport.h  
CachedOnDropLocalMousePos FIntPoint Caching off of the DragDropEvent Local Mouse Position grabbed from OnDrop SLevelViewport.h  
CachedPerspectiveCameraTransform FViewportCameraTransform Used to store last perspective camera transform before piloting (Actor Lock) Once piloting ends, this transform is re-applied to the camera. SLevelViewport.h  
CaptureRegionWidget TSharedPtr< class SCaptureRegionWidget > Pointer to the capture region widget in the viewport overlay. SLevelViewport.h  
ConfigKey FName The current viewport config key SLevelViewport.h  
DebuggingBorder const FSlateBrush * The brush to use if this viewport is in debug mode SLevelViewport.h  
DroppedObjects TArray< UObject * > Array of objects dropped during the OnDrop event SLevelViewport.h  
GameLayerManager TSharedPtr< SGameLayerManager >   SLevelViewport.h  
HighResScreenshotDialog TWeakPtr< class SWindow > Weak pointer to the highres screenshot dialog if it's open. SLevelViewport.h  
InactiveViewport TSharedPtr< class FSceneViewport > Inactive Slate viewport for rendering and I/O If this is valid there is a pie viewport and this is the previous level viewport scene viewport SLevelViewport.h  
InactiveViewportWidgetEditorContent TSharedPtr< SWidget > When in PIE this will contain the editor content for the viewport widget (toolbar). SLevelViewport.h  
InViewportMenu TSharedPtr< class SInViewportDetails >   SLevelViewport.h  
InViewportMenuWrapper TSharedPtr< class SWidget >   SLevelViewport.h  
LevelViewportClient PRAGMA_ENABLE_DEPRECATION_WARNINGS TSharedPtr< FLevelEditorViewportClient > Level viewport client SLevelViewport.h  
LevelViewportToolBar PRAGMA_DISABLE_DEPRECATION_WARNINGS TSharedPtr< SLevelViewportToolBar >   SLevelViewport.h  
NonMaximizedBorder const FSlateBrush * The brush to use when the viewport is not maximized SLevelViewport.h  
ParentLayout TWeakPtr< class FLevelViewportLayout > Tab which this viewport is located in SLevelViewport.h  
ParentLevelEditor TWeakPtr< ILevelEditor > Pointer to the parent level editor for this viewport SLevelViewport.h  
PIECommands TSharedPtr< FUICommandList > Commands specifically for PIE SLevelViewport.h  
PIEOverlayAnim FCurveSequence Separate curve to control fading out the PIE mouse control label SLevelViewport.h  
PIEOverlayBorder TSharedPtr< class SBorder > The border in the SOverlay for the PIE mouse control label SLevelViewport.h  
PIEPreviewFeatureLevelChangedHandle FDelegateHandle When PIE is active, the handle for the change feature level delegate SLevelViewport.h  
PIEViewportOverlayWidget TSharedPtr< SOverlay > Viewport overlay widget exposed to game systems when running play-in-editor SLevelViewport.h  
PlayClient TWeakObjectPtr< UGameViewportClient > The GameViewportClient SLevelViewport.h  
ReturningToEditorBorder const FSlateBrush * The brush to use when returning back to the editor from PIE or SIE mode SLevelViewport.h  
StartingPlayInEditorBorder const FSlateBrush * The brush to use when transitioning into Play in Editor mode SLevelViewport.h  
StartingSimulateBorder const FSlateBrush * The brush to use when transitioning into Simulate mode SLevelViewport.h  
UserAllowThrottlingValue int32 The users value for allowing throttling, we restore this value when we lose focus. SLevelViewport.h  
ViewTransitionAnim FCurveSequence Animation progress within current view transition SLevelViewport.h  
ViewTransitionType EViewTransition::Type Type of transition we're currently playing SLevelViewport.h  
WorldPartitionViewportWidget TSharedPtr< SWorldPartitionViewportWidget >   SLevelViewport.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

virtual void AddOverlayWidget ( TSharedRef< SWidget > OverlaidWidget,
int32 ZOrder
)

   SLevelViewport.h  

virtual TSharedRef< SWidget > AsWidget ()

   SLevelViewport.h  

virtual TSharedRef< const SWidget > AsWidget ()

   SLevelViewport.h  

bool CanMaximize()

   SLevelViewport.h  

bool CanToggleGameView()

   SLevelViewport.h  

virtual bool CanToggleInViewportContextMenu()

   SLevelViewport.h  

void Construct ( const FArguments& InArgs,
const FAssetEditorViewportConstructionArgs& InConstructionArgs
)

 Constructs the viewport widget SLevelViewport.h  

void ConstructLevelEditorViewportClient ( FLevelEditorViewportInstanceSettings& ViewportInstanceSettings
)

 Constructs the level editor viewport client SLevelViewport.h  

void ConstructViewportOverlayContent()

 Constructs the widgets for the viewport overlay SLevelViewport.h  

TSharedRef< class ISceneOutlinerColumn > CreateActorLockSceneOutlinerColumn ( ISceneOutliner& SceneOutliner
) const

   SLevelViewport.h  

virtual void EndPlayInEditorSession()

   SLevelViewport.h  

virtual FViewport * GetActiveViewport()

   SLevelViewport.h  

bool GetAllowsCinematicControl()

   SLevelViewport.h  

virtual FEditorViewportClient & GetAssetViewportClient()

   SLevelViewport.h  
Called to get the visibility of the viewport's 'Restore from Immersive' button. SLevelViewport.h  

const TSharedPtr< FUICommandList > & GetCommandList()

   SLevelViewport.h  

FName GetConfigKey ()

 Returns the config key associated with this viewport. SLevelViewport.h  

FMargin GetContextMenuPadding()

   SLevelViewport.h  

virtual EVisibility GetCurrentLevelButtonVisibility()

   SLevelViewport.h  

virtual EVisibility GetCurrentLevelTextVisibility()

   SLevelViewport.h  

FText GetCurrentScreenPercentageText()

 Called to get the screen percentage preview text SLevelViewport.h  

EVisibility GetCurrentScreenPercentageVisibility()

   SLevelViewport.h  

FString GetDeviceProfileString()

   SLevelViewport.h  

EVisibility GetFullToolbarVisibility()

 Get the visibility for items considered to be part of the 'full' viewport toolbar SLevelViewport.h  

const FLevelEditorViewportClient & GetLevelViewportClient ()

   SLevelViewport.h  

FLevelEditorViewportClient & GetLevelViewportClient ()

   SLevelViewport.h  
Called to get the visibility of the viewport's maximize/minimize toggle button. SLevelViewport.h  

EVisibility GetOptionsMenuVisibility()

 Get the visibility for viewport toolbar's options menu. SLevelViewport.h  

TWeakPtr< ILevelEditor > GetParentLevelEditor()

 Get the parent level editor for this viewport SLevelViewport.h  

UGameViewportClient * GetPlayClient()

   SLevelViewport.h  

FText GetSelectedActorsCurrentLevelText ( bool bDrawOnlyLabel
) const

 Called to get the text for the level the currently selected actor or actors are in. SLevelViewport.h  

virtual EVisibility GetSelectedActorsCurrentLevelTextVisibility()

   SLevelViewport.h  

TSharedPtr< FSceneViewport > GetSharedActiveViewport()

   SLevelViewport.h  

EVisibility GetToolbarVisibility()

   SLevelViewport.h  

virtual EVisibility GetToolBarVisibility()

 Called to get the visibility of the level viewport toolbar SLevelViewport.h  

virtual EVisibility GetTransformToolbarVisibility()

   SLevelViewport.h  

virtual EVisibility GetViewportControlsVisibility()

   SLevelViewport.h  

FName GetViewportTypeWithinLayout()

 Get this level viewport widget's type within its parent layout SLevelViewport.h  

virtual TWeakPtr< SViewport > GetViewportWidget()

   SLevelViewport.h  

virtual UWorld * GetWorld()

   SLevelViewport.h  

virtual bool HasPlayInEditorViewport()

   SLevelViewport.h  

virtual void HideInViewportContextMenu()

   SLevelViewport.h  

bool IsActorAlwaysPreview ( TWeakObjectPtr< AActor > Actor
) const

 For the specified actor, See if we're forcing a preview SLevelViewport.h  

virtual bool IsActorEditorContextVisible()

   SLevelViewport.h  

bool IsActorLocked ( const TWeakObjectPtr< AActor > Actor
) const

   SLevelViewport.h  

bool IsActorPreviewDetached ( TWeakObjectPtr< AActor > PreviewActor
)

 See if the specified actor's ActorPreview is detached from actor SLevelViewport.h  

bool IsActorPreviewPinned ( TWeakObjectPtr< AActor > PreviewActor
)

 See if the specified actor's ActorPreview is pinned or not SLevelViewport.h  

bool IsAnyActorLocked()

   SLevelViewport.h  

bool IsDeviceProfileStringSet ( FString ProfileName
) const

   SLevelViewport.h  

bool IsFoliageTypeVisible ( TWeakObjectPtr< class UFoliageType > FoliageType
) const

 Checks if a foliage type is visible in this viewport SLevelViewport.h  

bool IsImmersive()

   SLevelViewport.h  

bool IsInForegroundTab()

   SLevelViewport.h  

bool IsInGameView()

   SLevelViewport.h  

bool IsLayerVisible ( FName LayerName
) const

 Checks if a layer is visible in this viewportCalled to determine if a layer is visible. SLevelViewport.h  

bool IsLockedCameraViewEnabled()

 Check whether locked camera view is enabled SLevelViewport.h  

bool IsMaximized()

   SLevelViewport.h  

bool IsPlayInEditorViewportActive()

   SLevelViewport.h  

bool IsSelectedActorLocked()

   SLevelViewport.h  

bool IsViewportConfigurationSet ( FName ConfigurationName
) const

 Returns whether the named layout is currently selected on the parent tab that this viewport belongs to. SLevelViewport.h  

bool IsViewportToolbarVisible()

 Whether the viewport toolbar is currently visible. SLevelViewport.h  

bool IsViewportTypeWithinLayoutEqual ( FName InLayoutType
)

 Checks if the specified layout type matches our current viewport type. SLevelViewport.h  

virtual bool IsVisible()

   SLevelViewport.h  

void MakeImmersive ( const bool bWantImmersive,
const bool bAllowAnimation
)

 Attempts to switch this viewport into immersive mode SLevelViewport.h  

void MakeMaximized ( bool bWantMaximized,
bool bAllowAnimation
)

 Attempt to switch this viewport into a maximized or normal mode SLevelViewport.h  
Called to unlock the actor from the viewport's context menu SLevelViewport.h  

void OnActorLockToggleFromMenu ( AActor* Actor
)

 Called to lock/unlock the actor from the viewport's context menu SLevelViewport.h  

void OnActorSelectionChanged ( const TArray< UObject* >& NewSelection,
bool bForceRefresh
)

 Called on all viewports, when actor selection changes. SLevelViewport.h  

void OnClearAllBookmarks()

 Called to clear all bookmarks SLevelViewport.h  

void OnClearBookmark ( int32 BookmarkIndex
)

 Called to clear a bookmark SLevelViewport.h  

void OnCompactBookmarks()

 Called to Compact Bookmarks. SLevelViewport.h  

void OnElementSelectionChanged ( const UTypedElementSelectionSet* SelectionSet,
bool bForceRefresh
)

 Called on all viewports, when element selection changes. SLevelViewport.h  

void OnFloatingButtonClicked()

 Actions to perform whenever the viewports floating buttons are pressed SLevelViewport.h  

virtual FReply OnFocusReceived ( const FGeometry& MyGeometry,
const FFocusEvent& InFocusEvent
)

   SLevelViewport.h  

virtual void OnFocusViewportToSelection()

 SEditorViewport Interface SLevelViewport.h  

bool OnHasBookmarkSet ( int32 BookmarkIndex
)

 Called to check if a bookmark is set SLevelViewport.h  

void OnJumpToBookmark ( int32 BookmarkIndex
)

 Called to jump to a bookmark SLevelViewport.h  

void OnPreviewSelectedCamerasChange()

 Called when Preview Selected Cameras preference is changed. SLevelViewport.h  

void OnSetBookmark ( int32 BookmarkIndex
)

 Called to set a bookmark SLevelViewport.h  

void OnSetViewportConfiguration ( FName ConfigurationName
)

 Sets the current layout on the parent tab that this viewport belongs to. SLevelViewport.h  

virtual void OnSimulateSessionFinished()

   SLevelViewport.h  

virtual void OnSimulateSessionStarted()

   SLevelViewport.h  

FReply OnToggleMaximize()

 Called when the maximize command is executed SLevelViewport.h  

virtual void RegisterGameViewportIfPIE()

 Registers a game viewport with the Slate application so that specific messages can be routed directly to this level viewport if it is an active PIE viewport SLevelViewport.h  

void RemoveAllPreviews ( const bool bRemoveFromDesktopViewport
)

 Unpin and close all actor preview windows SLevelViewport.h  

virtual void RemoveOverlayWidget ( TSharedRef< SWidget > OverlaidWidget
)

   SLevelViewport.h  

void SaveConfig ( const FString& ConfigName
) const

 Saves this viewport's config to ULevelEditorViewportSettings SLevelViewport.h  

void SetActorAlwaysPreview ( TWeakObjectPtr< AActor > PreviewActor,
bool bAlwaysPreview
)

 For the specified actor, toggle Pinned/Unpinned of it's ActorPreview SLevelViewport.h  

void SetAllowsCinematicControl ( bool bAllow
)

 Sets whether the viewport should allow cinematic control SLevelViewport.h  

void SetDeviceProfileString ( const FString& ProfileName
)

 Set the device profile name SLevelViewport.h  

void SetKeyboardFocusToThisViewport()

 Sets Slate keyboard focus to this viewport SLevelViewport.h  

void SetViewportTypeWithinLayout ( FName InLayoutType
)

 Set this level viewport widget's type within its parent layout SLevelViewport.h  

virtual void StartPlayInEditorSession ( UGameViewportClient* PlayClient,
const bool bInSimulateInEditor
)

 IAssetViewport Interface SLevelViewport.h  

virtual void SwapViewportsForPlayInEditor()

   SLevelViewport.h  

virtual void SwapViewportsForSimulateInEditor()

   SLevelViewport.h  

void ToggleActorPilotCameraView()

 Toggles enabling the exact camera view when locking a viewport to a camera SLevelViewport.h  

void ToggleActorPreviewIsPanelDetached ( TWeakObjectPtr< AActor > PreviewActor
)

 For the specified actor, toggle whether the panel is detached from it SLevelViewport.h  

void ToggleActorPreviewIsPinned ( TWeakObjectPtr< AActor > PreviewActor
)

 For the specified actor, toggle Pinned/Unpinned of it's ActorPreview SLevelViewport.h  

void ToggleAllFoliageTypes ( bool bVisible
)

 Toggles all foliage types visibility SLevelViewport.h  

void ToggleGameView()

 Called when game view should be toggled SLevelViewport.h  

virtual void ToggleInViewportContextMenu()

   SLevelViewport.h  

void ToggleShowFoliageType ( TWeakObjectPtr< class UFoliageType > FoliageType
)

 Toggles foliage type visibility in this viewport SLevelViewport.h  

void ToggleShowLayer ( FName LayerName
)

 Toggles layer visibility in this viewport SLevelViewport.h  

void ToggleViewportToolbarVisibility()

 Toggles the current viewport toolbar visibility. SLevelViewport.h  

void ToggleViewportTypeActivationWithinLayout ( FName InLayoutType
)

 Activates the specified viewport type in the layout, if it's not already, or reverts to default if it is. SLevelViewport.h  

Protected

Name Remarks Include Path Unreal Specifiers

virtual void BindCommands()

   SLevelViewport.h  

TSharedRef< SWidget > BuildPIEViewportToolbar()

   SLevelViewport.h  

virtual TSharedPtr< SWidget > BuildViewportToolbar()

   SLevelViewport.h  

virtual void ExtendToolbarContext ( FToolMenuContext& InToolMenuContext
)

 Can be overriden by derived classes to add new context objects to the new toolbar SLevelViewport.h  

void LockActorInternal ( AActor* NewActorToLock
)

   SLevelViewport.h  

virtual TSharedRef< FEditorViewportClient > MakeEditorViewportClient()

 SEditorViewport interface SLevelViewport.h  

virtual void OnDecrementPositionGridSize()

   SLevelViewport.h  

virtual void OnDecrementRotationGridSize()

   SLevelViewport.h  

virtual EVisibility OnGetFocusedViewportIndicatorVisibility()

   SLevelViewport.h  

virtual const FSlateBrush * OnGetViewportBorderBrush()

   SLevelViewport.h  

virtual FSlateColor OnGetViewportBorderColorAndOpacity()

   SLevelViewport.h  

virtual EVisibility OnGetViewportContentVisibility()

   SLevelViewport.h  

virtual void OnIncrementPositionGridSize()

   SLevelViewport.h  

virtual void OnIncrementRotationGridSize()

   SLevelViewport.h  

virtual FName RegisterViewportToolbar()

 Registers the viewport toolbar UToolMenu and returns its name. SLevelViewport.h  

Static

Name Remarks Include Path Unreal Specifiers

static bool CanGetCameraInformationFromActor ( AActor* Actor
)

   SLevelViewport.h  

static void EnableInViewportMenu()

   SLevelViewport.h  

static float GetActorLockSceneOutlinerColumnWidth()

   SLevelViewport.h  

static bool GetCameraInformationFromActor ( AActor* Actor,
FMinimalViewInfo& out_CameraInfo
)

   SLevelViewport.h  

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