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45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
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#pragma once
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class GRAPHEDITOR_API FDragNode : public FGraphEditorDragDropAction
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{
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public:
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DRAG_DROP_OPERATOR_TYPE(FDragNode, FGraphEditorDragDropAction)
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static TSharedRef<FDragNode> New(const TSharedRef<SGraphPanel>& InGraphPanel, const TSharedRef<SGraphNode>& InDraggedNode);
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static TSharedRef<FDragNode> New(const TSharedRef<SGraphPanel>& InGraphPanel, const TArray< TSharedRef<SGraphNode> >& InDraggedNodes);
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// FGraphEditorDragDropAction interface
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virtual void HoverTargetChanged() OVERRIDE;
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virtual FReply DroppedOnNode(FVector2D ScreenPosition, FVector2D GraphPosition) OVERRIDE;
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virtual FReply DroppedOnPanel( const TSharedRef< SWidget >& Panel, FVector2D ScreenPosition, FVector2D GraphPosition, UEdGraph& Graph) OVERRIDE;
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//virtual void OnDragBegin( const TSharedRef<class SGraphPin>& InPin) OVERRIDE;
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virtual void OnDragged (const class FDragDropEvent& DragDropEvent ) OVERRIDE;
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// End of FGraphEditorDragDropAction interface
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const TArray< TSharedRef<SGraphNode> > & GetNodes() const;
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virtual bool IsValidOperation() const;
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protected:
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typedef FGraphEditorDragDropAction Super;
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UEdGraphNode* GetGraphNodeForSGraphNode(TSharedRef<SGraphNode>& SNode);
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protected:
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/** graph panel */
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TSharedPtr<SGraphPanel> GraphPanel;
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/** our dragged nodes*/
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TArray< TSharedRef<SGraphNode> > DraggedNodes;
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/** Offset information for the decorator widget */
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FVector2D DecoratorAdjust;
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/** if we can drop our node here*/
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bool bValidOperation;
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};
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