FInViewportUIDragOperation

A Sample implementation of IDragDropOperation

API > API/Editor > API/Editor/EditorFramework > API/Editor/EditorFramework/Viewports

Inheritance Hierarchy

References

   
Module EditorFramework
Header /Engine/Source/Editor/EditorFramework/Public/Viewports/InViewportUIDragOperation.h
Include #include "Viewports/InViewportUIDragOperation.h"

Syntax

class FInViewportUIDragOperation : public FDragDropOperation

Remarks

A Sample implementation of IDragDropOperation

Variables

  Type Name Description
Protected variable TSharedPtr< SDockingTabStack > CursorDecoratorStackNode Decorator widget where we add temp doc tabs to
Protected variable FVector2D DecoratorOffsetFromCursor Where the user grabbed the UI measured in screen space from its top-left corner
Protected variable FOnInViewportUIDropped DropDelegate  
Protected variable FVector2D LastContentSize What the size of the content was when it was last shown.
Protected variable TSharedPtr< class SWidget > UIBeingDragged What is actually being dragged in this operation

Constructors

  Type Name Description
Protected function  

FInViewportUIDragOperation ( const TSharedRef< class SWidget >& InUIToBeDragged,
const FVector2D InDecoratorOffsetFromCursor,
const FVector2D& OwnerAreaSize,
FOnInViewportUIDropped& InDropDelegate
)

 The constructor is protected, so that this class can only be instantiated as a shared pointer.

Destructors

  Type Name Description
Public function Virtual    

Functions

  Type Name Description
Public function void

BroadcastDropEvent ( const FVector2D InLocation
)

  
Public function const FVector2D  
Public function Static const FString &  
Public function Static TSharedRef< FInViewportUIDragOperation >

New ( const TSharedRef< class SWidget >& InUIToBeDragged,
const FVector2D InDecoratorOffset,
const FVector2D& OwnerAreaSize,
FOnInViewportUIDropped& InDropDelegate
)

 Create this Drag and Drop Content
Public function Virtual void

OnDragged ( const FDragDropEvent& DragDropEvent
)

 Called when the mouse was moved during a drag and drop operation

Overridden from FDragDropOperation

  Type Name Description
Public function Virtual Const bool

IsOfTypeImpl ( const FString& Type
)

 Checks whether this drag and drop operation can cast safely to the specified type.
Public function Virtual void

OnDrop ( bool bDropWasHandled,
const FPointerEvent& MouseEvent
)

 Invoked when the drag and drop operation has ended.

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