FDragTool | Unreal Engine 5.0 Documentation

Inheritance Hierarchy


Module	UnrealEd
Header	/Engine/Source/Editor/UnrealEd/Public/EditorDragTools.h
Include	#include "EditorDragTools.h"

class FDragTool

The base class that all drag tools inherit from. The drag tools implement special behaviors for the user clicking and dragging in a viewport.

Type	Name	Description
bool	bAltDown	These flags store the state of various buttons that were pressed when the drag was started.
bool	bControlDown
bool	bConvertDelta	Does this drag tool need to have the mouse movement converted to the viewport orientation?
bool	bIsDragging	True if we are dragging
bool	bLeftMouseButtonDown
bool	bMiddleMouseButtonDown
bool	bRightMouseButtonDown
bool	bShiftDown
bool	bUseSnapping	If true, the drag tool wants to be passed grid snapped values.
FVector	End
FVector	EndWk
FEditorModeTools *	ModeTools
FVector	Start	The start/end location of the current drag.

	Type	Name	Description
		FDragTool ( FEditorModeTools* InModeTools )

	Type	Name	Description
		~FDragTool ()

Type	Name	Description
void	AddDelta ( const FVector& InDelta )	Updates the drag tool's end location with the specified delta.
void	EndDrag ()	Ends a mouse drag behavior (the user has let go of the mouse button).
bool	IsDragging ()
void	Render ( FCanvas* Canvas )	Rendering stub for 2D viewport drag tools.
void	Render ( const FSceneView* View, FCanvas* Canvas )
void	Render3D ( const FSceneView* View, FPrimitiveDrawInterface* PDI )
void	StartDrag ( FEditorViewportClient* InViewportClient, const FVector& InStartWorld, const FVector2D& InStartScreen )	Starts a mouse drag behavior.