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  3. UInteractiveGizmoManager

UInteractiveGizmoManager

[UInteractiveGizmoManager](API\Runtime\InteractiveToolsFramework\UInteractiveGizmoManager) allows users of the Tools framework to create and operate Gizmo instances.

API > API/Runtime > API/Runtime/InteractiveToolsFramework

Inheritance Hierarchy

References

   
Module InteractiveToolsFramework
Header /Engine/Source/Runtime/InteractiveToolsFramework/Public/InteractiveGizmoManager.h
Include #include "InteractiveGizmoManager.h"

Syntax

class UInteractiveGizmoManager :  
    public UObject,  
    public IToolContextTransactionProvider

Remarks

UInteractiveGizmoManager allows users of the Tools framework to create and operate Gizmo instances. For each Gizmo, a (string,GizmoBuilder) pair is registered with the GizmoManager. Gizmos can then be activated via the string identifier.

Variables

  Type Name Description
Protected variable TArray< FActiveGizmo > ActiveGizmos Set of Currently-active Gizmos
Protected variable bool bDefaultGizmosRegistered  
Protected variable TSharedPtr< FCombinedTransformGizmoActorFactory > GizmoActorBuilder  
Protected variable TMap< FString, TObjectPtr< UInteractiveGizmoBuilder > > GizmoBuilders Current set of named GizmoBuilders
Protected variable UInputRouter * InputRouter Current InputRouter (Context owns this)
Protected variable IToolsContextQueriesAPI * QueriesAPI Current Context-Queries implementation
Protected variable IToolsContextTransactionsAPI * TransactionsAPI Current Transactions implementation

Constructors

  Type Name Description
Protected function    

Functions

  Type Name Description
Public function Virtual UCombinedTransformGizmo *

Create3AxisTransformGizmo ( void* Owner,
const FString& InstanceIdentifier
)

 Activate a new instance of the default 3-axis transformation Gizmo.
Public function Virtual UCombinedTransformGizmo *

CreateCustomRepositionableTransformGizmo ( ETransformGizmoSubElements Elements,
void* Owner,
const FString& InstanceIdentifier
)

  
Public function Virtual UCombinedTransformGizmo *

CreateCustomTransformGizmo ( ETransformGizmoSubElements Elements,
void* Owner,
const FString& InstanceIdentifier
)

 Activate a new customized instance of the default 3-axis transformation Gizmo, with only certain elements included.
Public function Virtual UInteractiveGizmo *

CreateGizmo ( const FString& BuilderIdentifier,
const FString& InstanceIdentifier,
void* Owner
)

 Try to activate a new Gizmo instance
Public function GizmoType *

CreateGizmo ( const FString& BuilderIdentifier,
const FString& InstanceIdentifier,
void* Owner
)

 Try to activate a new Gizmo instance
Public function Virtual bool

DeregisterGizmoType ( const FString& BuilderIdentifier
)

 Remove a GizmoBuilder from the set of known GizmoBuilders
Public function Virtual void

DestroyAllGizmosByOwner ( void* Owner
)

 Destroy all Gizmos that are owned by the given pointer
Public function Virtual void

DestroyAllGizmosOfType ( const FString& BuilderIdentifier
)

 Destroy all Gizmos that were created by the identified GizmoBuilder
Public function Virtual bool Shutdown and remove a Gizmo
Public function Virtual void

DisplayMessage ( const FText& Message,
EToolMessageLevel Level
)

 Functions that Gizmos can call to interact with Transactions APIPost a message via the Transactions API
Public function Virtual void

DrawHUD ( FCanvas* Canvas,
IToolsContextRenderAPI* RenderAPI
)

 Let active Gizmos do screen space drawing.
Public function Virtual TArray< UInteractiveGizmo * >

FindAllGizmosOfType ( const FString& BuilderIdentifier
)

 Find all the existing Gizmo instances that were created by the identified GizmoBuilder
Public function Virtual UInteractiveGizmo *

FindGizmoByInstanceIdentifier ( const FString& Identifier
)

 Find the Gizmo that was created with the given instance identifier
Public function Const UContextObjectStore *  
Public function Virtual IToolsContextQueriesAPI * Access to APIs, etc
Protected function Virtual void

Initialize ( IToolsContextQueriesAPI* QueriesAPI,
IToolsContextTransactionsAPI* TransactionsAPI,
UInputRouter* InputRouter
)

 Initialize the GizmoManager with the necessary Context-level state.
Public function Virtual void Request an Invalidation via the Transactions API (ie to cause a repaint, etc)
Public function Virtual void Standard Gizmos Register default gizmo types
Public function Virtual void

RegisterGizmoType ( const FString& BuilderIdentifier,
UInteractiveGizmoBuilder* Builder
)

 GizmoBuilder Registration and Gizmo Creation/Shutdown Register a new GizmoBuilder
Public function Virtual void Render any active Gizmos.
Protected function Virtual void Shutdown the GizmoManager.
Public function Virtual void

Tick ( float DeltaTime
)

 State control (Tick any active Gizmos. Called by UInteractiveToolsContext

Overridden from IToolContextTransactionProvider

  Type Name Description
Public function Virtual void

BeginUndoTransaction ( const FText& Description
)

 Request that the Context open a Transaction, whatever that means to the current Context
Public function Virtual void

EmitObjectChange ( UObject* TargetObject,
TUniquePtr< FToolCommandChange > Change,
const FText& Description
)

 Forward an FChange object to the Context
Public function Virtual void Request that the Context close and commit the open Transaction

Constants

Name Description
CustomRepositionableThreeAxisTransformBuilderIdentifier  
CustomThreeAxisTransformBuilderIdentifier  
DefaultAxisAngleBuilderIdentifier  
DefaultAxisPositionBuilderIdentifier Builder identifiers for default gizmo types. Perhaps should have an API for this...
DefaultPlanePositionBuilderIdentifier  
DefaultScalableSphereBuilderIdentifier  
DefaultThreeAxisTransformBuilderIdentifier  

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