93 lines
3.0 KiB
C++
93 lines
3.0 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "BPVariableDragDropAction.h"
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#include "BlueprintEditor.h"
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#include "Containers/UnrealString.h"
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#include "EdGraphSchema_K2_Actions.h"
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#include "GraphEditorDragDropAction.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 "Misc/AssertionMacros.h"
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#include "MyBlueprintItemDragDropAction.h"
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#include "Templates/SharedPointer.h"
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#include "UObject/Class.h"
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#include "UObject/NameTypes.h"
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#include "UObject/UObjectGlobals.h"
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#include "UObject/UnrealType.h"
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#include "UObject/WeakObjectPtr.h"
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#include "UObject/WeakObjectPtrTemplates.h"
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#define UE_API KISMET_API
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class SWidget;
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class UEdGraph;
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struct FEdGraphSchemaAction;
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/** DragDropAction class for dropping a Variable onto a graph */
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class FKismetDelegateDragDropAction : public FKismetVariableDragDropAction
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{
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public:
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DRAG_DROP_OPERATOR_TYPE(FKismetDelegateDragDropAction, FKismetVariableDragDropAction)
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// FGraphEditorDragDropAction interface
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virtual void HoverTargetChanged() override { FMyBlueprintItemDragDropAction::HoverTargetChanged(); }
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UE_API virtual FReply DroppedOnPanel(const TSharedRef< SWidget >& Panel, const FVector2f& ScreenPosition, const FVector2f& GraphPosition, UEdGraph& Graph) override;
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UE_API virtual bool IsSupportedBySchema(const class UEdGraphSchema* Schema) const override;
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// End of FGraphEditorDragDropAction
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UE_API bool IsValid() const;
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static TSharedRef<FKismetDelegateDragDropAction> New(TSharedPtr<FEdGraphSchemaAction> InSourceAction, FName InVariableName, UStruct* InSource, FNodeCreationAnalytic AnalyticCallback)
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{
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TSharedRef<FKismetDelegateDragDropAction> Operation = MakeShareable(new FKismetDelegateDragDropAction);
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Operation->SourceAction = InSourceAction;
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Operation->VariableName = InVariableName;
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Operation->VariableSource = InSource;
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Operation->AnalyticCallback = AnalyticCallback;
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Operation->Construct();
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return Operation;
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}
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/** Structure for required node construction parameters */
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struct FNodeConstructionParams
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{
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FDeprecateSlateVector2D GraphPosition;
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UEdGraph* Graph;
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bool bSelfContext;
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const FProperty* Property;
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FNodeCreationAnalytic AnalyticCallback;
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};
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template<class TNode> static void MakeMCDelegateNode(FNodeConstructionParams Params)
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{
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check(Params.Graph && Params.Property);
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TNode* Node = NewObject<TNode>();
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FEdGraphSchemaAction_K2NewNode::SpawnNode<TNode>(
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Params.Graph,
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Params.GraphPosition,
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EK2NewNodeFlags::SelectNewNode,
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[&Params](TNode* NewInstance)
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{
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NewInstance->SetFromProperty(Params.Property, Params.bSelfContext, Params.Property->GetOwnerClass());
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}
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);
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Params.AnalyticCallback.ExecuteIfBound();
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}
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/** Create new custom event node from construction parameters */
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static UE_API void MakeEvent(FNodeConstructionParams Params);
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/** Assign new delegate node from construction parameters */
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static UE_API void AssignEvent(FNodeConstructionParams Params);
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protected:
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FKismetDelegateDragDropAction() {}
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};
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#undef UE_API
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