312 lines
12 KiB
C
312 lines
12 KiB
C
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// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "Tools/Modes.h"
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#include "InputCoreTypes.h"
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#include "UnrealWidget.h"
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#include "EditorComponents.h"
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#include "Templates/SharedPointer.h"
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#include "UObject/Object.h"
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#include "InputState.h"
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#include "Math/Ray.h"
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#include "UObject/SoftObjectPtr.h"
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#include "Engine/EngineBaseTypes.h"
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#include "UEdMode.generated.h"
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class FCanvas;
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class FEditorModeTools;
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class FEditorViewportClient;
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class FModeToolkit;
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class FPrimitiveDrawInterface;
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class FSceneView;
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class FViewport;
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class UTexture2D;
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class UEdModeInteractiveToolsContext;
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class UInteractiveToolManager;
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class UInteractiveTool;
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class FEditorViewportClient;
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class HHitProxy;
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struct FViewportClick;
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class FEditorViewportClient;
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class UInteractiveToolBuilder;
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class FUICommandInfo;
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class FUICommandList;
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class FEdMode;
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/** Outcomes when determining whether it's possible to perform an action on the edit modes*/
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namespace EEditAction
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{
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enum Type
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{
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/** Can't process this action */
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Skip = 0,
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/** Can process this action */
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Process,
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/** Stop evaluating other modes (early out) */
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Halt,
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};
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}; // namespace EEditAction
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/**
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* Base class for all editor modes.
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*/
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UCLASS(Abstract)
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class UNREALED_API UEdMode: public UObject
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, public FEditorCommonDrawHelper
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{
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GENERATED_BODY()
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public:
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/** Friends so it can access mode's internals on construction */
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friend class UAssetEditorSubsystem;
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UEdMode();
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virtual void Initialize();
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virtual bool MouseEnter(FEditorViewportClient* ViewportClient, FViewport* Viewport, int32 x, int32 y);
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virtual bool MouseLeave(FEditorViewportClient* ViewportClient, FViewport* Viewport);
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virtual bool MouseMove(FEditorViewportClient* ViewportClient, FViewport* Viewport, int32 x, int32 y);
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virtual bool ReceivedFocus(FEditorViewportClient* ViewportClient, FViewport* Viewport);
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virtual bool LostFocus(FEditorViewportClient* ViewportClient, FViewport* Viewport);
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/**
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* Called when the mouse is moved while a window input capture is in effect
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*
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* @param InViewportClient Level editor viewport client that captured the mouse input
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* @param InViewport Viewport that captured the mouse input
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* @param InMouseX New mouse cursor X coordinate
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* @param InMouseY New mouse cursor Y coordinate
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*
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* @return true if input was handled
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*/
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virtual bool CapturedMouseMove(FEditorViewportClient* InViewportClient, FViewport* InViewport, int32 InMouseX, int32 InMouseY);
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/** Process all captured mouse moves that occurred during the current frame */
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virtual bool ProcessCapturedMouseMoves(FEditorViewportClient* InViewportClient, FViewport* InViewport, const TArrayView<FIntPoint>& CapturedMouseMoves) { return false; }
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virtual bool InputKey(FEditorViewportClient* ViewportClient, FViewport* Viewport, FKey Key, EInputEvent Event);
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virtual bool InputAxis(FEditorViewportClient* InViewportClient, FViewport* Viewport, int32 ControllerId, FKey Key, float Delta, float DeltaTime);
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virtual bool InputDelta(FEditorViewportClient* InViewportClient, FViewport* InViewport, FVector& InDrag, FRotator& InRot, FVector& InScale);
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virtual bool StartTracking(FEditorViewportClient* InViewportClient, FViewport* InViewport);
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virtual bool EndTracking(FEditorViewportClient* InViewportClient, FViewport* InViewport);
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// Added for handling EDIT Command...
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virtual EEditAction::Type GetActionEditDuplicate() { return EEditAction::Skip; }
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virtual EEditAction::Type GetActionEditDelete() { return EEditAction::Skip; }
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virtual EEditAction::Type GetActionEditCut() { return EEditAction::Skip; }
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virtual EEditAction::Type GetActionEditCopy() { return EEditAction::Skip; }
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virtual EEditAction::Type GetActionEditPaste() { return EEditAction::Skip; }
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virtual bool ProcessEditDuplicate() { return false; }
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virtual bool ProcessEditDelete();
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virtual bool ProcessEditCut() { return false; }
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virtual bool ProcessEditCopy() { return false; }
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virtual bool ProcessEditPaste() { return false; }
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virtual void Tick(FEditorViewportClient* ViewportClient, float DeltaTime);
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virtual bool IsCompatibleWith(FEditorModeID OtherModeID) const { return false; }
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virtual void ActorMoveNotify() {}
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virtual void ActorsDuplicatedNotify(TArray<AActor*>& PreDuplicateSelection, TArray<AActor*>& PostDuplicateSelection, bool bOffsetLocations) {}
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virtual void ActorSelectionChangeNotify() {};
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virtual void ActorPropChangeNotify() {}
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virtual void MapChangeNotify() {}
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/** If the Edmode is handling its own mouse deltas, it can disable the MouseDeltaTacker */
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virtual bool DisallowMouseDeltaTracking() const { return false; }
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/**
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* Lets each mode/tool specify a pivot point around which the camera should orbit
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* @param OutPivot The custom pivot point returned by the mode/tool
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* @return true if a custom pivot point was specified, false otherwise.
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*/
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virtual bool GetPivotForOrbit(FVector& OutPivot) const { return false; }
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/**
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* Get a cursor to override the default with, if any.
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* @return true if the cursor was overridden.
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*/
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virtual bool GetCursor(EMouseCursor::Type& OutCursor) const { return false; }
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/** Get override cursor visibility settings */
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virtual bool GetOverrideCursorVisibility(bool& bWantsOverride, bool& bHardwareCursorVisible, bool bSoftwareCursorVisible) const { return false; }
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/** Called before mouse movement is converted to drag/rot */
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virtual bool PreConvertMouseMovement(FEditorViewportClient* InViewportClient) { return false; }
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/** Called after mouse movement is converted to drag/rot */
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virtual bool PostConvertMouseMovement(FEditorViewportClient* InViewportClient) { return false; }
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virtual bool ShouldDrawBrushWireframe(AActor* InActor) const { return true; }
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/** If Rotation Snap should be enabled for this mode*/
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virtual bool IsSnapRotationEnabled();
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/** If this mode should override the snap rotation
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* @param Rotation The Rotation Override
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*
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* @return True if you have overridden the value
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*/
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virtual bool SnapRotatorToGridOverride(FRotator& Rotation) { return false; };
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virtual void UpdateInternalData() {}
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virtual void Enter();
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virtual void RegisterTool(TSharedPtr<FUICommandInfo> UICommand, FString ToolIdentifier, UInteractiveToolBuilder* Builder);
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virtual void Exit();
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virtual UTexture2D* GetVertexTexture();
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virtual void PostUndo() {}
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/**
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* Check to see if this UEdMode wants to disallow AutoSave
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* @return true if AutoSave can be applied right now
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*/
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virtual bool CanAutoSave() const { return true; }
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virtual void SelectNone();
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virtual void SelectionChanged() {}
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virtual bool HandleClick(FEditorViewportClient* InViewportClient, HHitProxy* HitProxy, const FViewportClick& Click);
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/**
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* Allows an editor mode to override the bounding box used to focus the viewport on a selection
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*
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* @param Actor The selected actor that is being considered for focus
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* @param PrimitiveComponent The component in the actor being considered for focus
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* @param InOutBox The box that should be computed for the actor and component
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* @return bool true if the mode overrides the box and populated InOutBox, false if it did not populate InOutBox
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*/
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virtual bool ComputeBoundingBoxForViewportFocus(AActor* Actor, UPrimitiveComponent* PrimitiveComponent, FBox& InOutBox) const { return false; }
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/** Handling SelectActor */
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virtual bool Select(AActor* InActor, bool bInSelected) { return 0; }
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/** Check to see if an actor can be selected in this mode - no side effects */
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virtual bool IsSelectionAllowed(AActor* InActor, bool bInSelection) const { return true; }
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/** @return True if this mode allows the viewport to use a drag tool */
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virtual bool AllowsViewportDragTool() const { return true; }
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/** Returns the editor mode identifier. */
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FEditorModeID GetID() const { return Info.ID; }
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/** Returns the editor mode information. */
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const FEditorModeInfo& GetModeInfo() const { return Info; }
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/** @name Rendering */
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//@{
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/** Draws translucent polygons on brushes and volumes. */
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virtual void Render(const FSceneView* View, FViewport* Viewport, FPrimitiveDrawInterface* PDI);
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// void DrawGridSection(int32 ViewportLocX,int32 ViewportGridY,FVector* A,FVector* B,float* AX,float* BX,int32 Axis,int32 AlphaCase,FSceneView* View,FPrimitiveDrawInterface* PDI);
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/** Overlays the editor hud (brushes, drag tools, static mesh vertices, etc*. */
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virtual void DrawHUD(FEditorViewportClient* ViewportClient, FViewport* Viewport, const FSceneView* View, FCanvas* Canvas);
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//@}
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/**
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* Called when the mode wants to draw brackets around selected objects
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*/
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virtual void DrawBrackets(FEditorViewportClient* ViewportClient, FViewport* Viewport, const FSceneView* View, FCanvas* Canvas);
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/** True if this mode uses a toolkit mode (eventually they all should) */
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virtual bool UsesToolkits() const;
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/** Gets the toolkit created by this mode */
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TSharedPtr<FModeToolkit> GetToolkit() { return Toolkit; }
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/** Returns the world this toolkit is editing */
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UWorld* GetWorld() const;
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/** Returns the owning mode manager for this mode */
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FEditorModeTools* GetModeManager() const;
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/**
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* For use by the EditorModeTools class to get the legacy FEdMode type from a legacy FEdMode wrapper
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* You should not need to override this function in your UEdMode implementation.
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*/
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virtual FEdMode* AsLegacyMode() { return nullptr; }
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public:
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/** Request that this mode be deleted at the next convenient opportunity (FEditorModeTools::Tick) */
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void RequestDeletion() { bPendingDeletion = true; }
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/** returns true if this mode is to be deleted at the next convenient opportunity (FEditorModeTools::Tick) */
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bool IsPendingDeletion() const { return bPendingDeletion; }
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protected:
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/** true if this mode is pending removal from its owner */
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bool bPendingDeletion;
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protected:
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/** Information pertaining to this mode. Should be assigned in the constructor. */
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FEditorModeInfo Info;
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/** Editor Mode Toolkit that is associated with this toolkit mode */
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TSharedPtr<FModeToolkit> Toolkit;
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/** Pointer back to the mode tools that we are registered with */
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FEditorModeTools* Owner;
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protected:
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/**
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* Returns the first selected Actor, or NULL if there is no selection.
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*/
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AActor* GetFirstSelectedActorInstance() const;
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bool bHaveSavedEditorState;
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bool bSavedAntiAliasingState;
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public:
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/**
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* @return active ToolManager
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*/
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virtual UInteractiveToolManager* GetToolManager() const;
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virtual TMap<FName, TArray<TSharedPtr<FUICommandInfo>>> GetModeCommands() const
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{
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return TMap<FName, TArray<TSharedPtr<FUICommandInfo>>>();
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};
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void SetCurrentPaletteName(FName InName)
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{
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CurrentPaletteName = InName;
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UpdateOnPaletteChange();
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};
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FName GetCurrentPaletteName() const
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{
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return CurrentPaletteName;
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}
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protected:
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virtual void CreateToolkit();
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virtual void OnToolStarted(UInteractiveToolManager* Manager, UInteractiveTool* Tool) {};
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virtual void OnToolEnded(UInteractiveToolManager* Manager, UInteractiveTool* Tool) {};
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virtual void ActivateDefaultTool() {};
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virtual void UpdateOnPaletteChange() {};
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protected:
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UPROPERTY()
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UEdModeInteractiveToolsContext* ToolsContext;
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TSoftClassPtr<UEdModeInteractiveToolsContext> ToolsContextClass;
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/** Command list lives here so that the key bindings on the commands can be processed in the viewport. */
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TSharedPtr<FUICommandList> ToolCommandList;
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UPROPERTY()
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TSoftClassPtr<UObject> SettingsClass;
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UPROPERTY(Transient)
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UObject* SettingsObject;
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FName CurrentPaletteName;
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};
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