126 lines
4.7 KiB
C++
126 lines
4.7 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "BlueprintEditor.h"
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#include "Containers/UnrealString.h"
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#include "Delegates/Delegate.h"
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#include "Engine/MemberReference.h"
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#include "Input/DragAndDrop.h"
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#include "Input/Reply.h"
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#include "Math/Vector2D.h"
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#include "MyBlueprintItemDragDropAction.h"
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#include "Templates/SharedPointer.h"
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#include "UObject/NameTypes.h"
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#define UE_API KISMET_API
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class FText;
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class UBlueprint;
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class UClass;
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class UEdGraph;
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class UFunction;
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struct FEdGraphSchemaAction;
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/*******************************************************************************
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* FKismetDragDropAction
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*******************************************************************************/
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class FKismetDragDropAction : public FMyBlueprintItemDragDropAction
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{
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public:
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DRAG_DROP_OPERATOR_TYPE(FKismetDragDropAction, FMyBlueprintItemDragDropAction)
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// FGraphEditorDragDropAction interface
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UE_API virtual void HoverTargetChanged() override;
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UE_API virtual FReply DroppedOnPanel( const TSharedRef< class SWidget >& Panel, const FVector2f& ScreenPosition, const FVector2f& GraphPosition, UEdGraph& Graph) override;
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// End of FGraphSchemaActionDragDropAction
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DECLARE_DELEGATE_RetVal_ThreeParams(bool, FCanBeDroppedDelegate, TSharedPtr<FEdGraphSchemaAction> /*DropAction*/, UEdGraph* /*HoveredGraphIn*/, FText& /*ImpededReasonOut*/);
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static TSharedRef<FKismetDragDropAction> New(TSharedPtr<FEdGraphSchemaAction> InActionNode, FNodeCreationAnalytic AnalyticCallback, FCanBeDroppedDelegate CanBeDroppedDelegate)
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{
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TSharedRef<FKismetDragDropAction> Operation = MakeShareable(new FKismetDragDropAction);
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Operation->SourceAction = InActionNode;
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Operation->AnalyticCallback = AnalyticCallback;
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Operation->CanBeDroppedDelegate = CanBeDroppedDelegate;
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Operation->Construct();
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return Operation;
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}
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protected:
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UE_API bool ActionWillShowExistingNode() const;
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/** */
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FCanBeDroppedDelegate CanBeDroppedDelegate;
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};
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/*******************************************************************************
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* FKismetFunctionDragDropAction
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*******************************************************************************/
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class FKismetFunctionDragDropAction : public FKismetDragDropAction
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{
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public:
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DRAG_DROP_OPERATOR_TYPE(FKismetFunctionDragDropAction, FKismetDragDropAction)
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UE_API FKismetFunctionDragDropAction();
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// FGraphEditorDragDropAction interface
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UE_API virtual FReply DroppedOnPanel( const TSharedRef< class SWidget >& Panel, const FVector2f& ScreenPosition, const FVector2f& GraphPosition, UEdGraph& Graph) override;
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UE_API virtual FReply DroppedOnPin(const FVector2f& ScreenPosition, const FVector2f& GraphPosition) override;
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// End of FGraphEditorDragDropAction
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static UE_API TSharedRef<FKismetFunctionDragDropAction> New(TSharedPtr<FEdGraphSchemaAction> InActionNode, FName InFunctionName, UClass* InOwningClass, const FMemberReference& InCallOnMember, FNodeCreationAnalytic AnalyticCallback, FCanBeDroppedDelegate CanBeDroppedDelegate = FCanBeDroppedDelegate());
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protected:
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/** Name of function being dragged */
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FName FunctionName;
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/** Class that function belongs to */
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UClass* OwningClass;
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/** Call on member reference */
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FMemberReference CallOnMember;
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/** Looks up the functions field on OwningClass using FunctionName */
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UE_API UFunction const* GetFunctionProperty() const;
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/** Constructs an action to execute, placing a function call node for the associated function */
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UE_API class UBlueprintFunctionNodeSpawner* GetDropAction(UEdGraph& Graph) const;
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};
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/*******************************************************************************
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* FKismetMacroDragDropAction
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*******************************************************************************/
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class FKismetMacroDragDropAction : public FKismetDragDropAction
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{
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public:
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DRAG_DROP_OPERATOR_TYPE(FKismetMacroDragDropAction, FKismetDragDropAction)
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UE_API FKismetMacroDragDropAction();
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// FGraphEditorDragDropAction interface
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UE_API virtual FReply DroppedOnPanel( const TSharedRef< class SWidget >& Panel, const FVector2f& ScreenPosition, const FVector2f& GraphPosition, UEdGraph& Graph) override;
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// End of FGraphEditorDragDropAction
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static UE_API TSharedRef<FKismetMacroDragDropAction> New(TSharedPtr<FEdGraphSchemaAction> InActionNode, FName InMacroName, UBlueprint* InBlueprint, UEdGraph* InMacro, FNodeCreationAnalytic AnalyticCallback);
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protected:
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// FMyBlueprintItemDragDropAction interface
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virtual UBlueprint* GetSourceBlueprint() const override
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{
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return Blueprint;
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}
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// End of FMyBlueprintItemDragDropAction interface
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protected:
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/** Name of macro being dragged */
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FName MacroName;
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/** Graph for the macro being dragged */
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UEdGraph* Macro;
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/** Blueprint we are operating on */
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UBlueprint* Blueprint;
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};
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#undef UE_API
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