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db9c8e2240
Big conversion of FStrings and FNames to FText. Version bump to move some MaterialFunction UProperty from a TArray<FString> to TArray<FText> (some Engine assets are older than being allowed to auto-convert the UProperty) Auto conversion of FName to FText (and back) now supported (as well as TArrays of those types). Searching categories by both the localized string and the source string is now supported in Blueprints. #jira UE-14481 - We are missing ability to translate node categories #codereview Justin.Sargent [CL 2542875 by Michael Schoell in Main branch]
94 lines
3.5 KiB
C++
94 lines
3.5 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "DragAndDrop.h"
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// Base class for drag-drop actions that pass into the graph editor and perform an action when dropped
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class GRAPHEDITOR_API FGraphEditorDragDropAction : public FDragDropOperation
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{
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public:
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DRAG_DROP_OPERATOR_TYPE(FGraphEditorDragDropAction, FDragDropOperation)
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void SetHoveredPin(class UEdGraphPin* InPin);
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void SetHoveredNode(const TSharedPtr<class SGraphNode>& InNode);
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void SetHoveredGraph(const TSharedPtr<class SGraphPanel>& InGraph);
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void SetHoveredCategoryName(const FText& InHoverCategoryName);
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void SetHoveredAction(TSharedPtr<struct FEdGraphSchemaAction> Action);
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void SetDropTargetValid( bool bValid ) { bDropTargetValid = bValid; }
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// Interface to override
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virtual void HoverTargetChanged() {}
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virtual FReply DroppedOnPin(FVector2D ScreenPosition, FVector2D GraphPosition) { return FReply::Unhandled(); }
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virtual FReply DroppedOnNode(FVector2D ScreenPosition, FVector2D GraphPosition) { return FReply::Unhandled(); }
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virtual FReply DroppedOnPanel( const TSharedRef< class SWidget >& Panel, FVector2D ScreenPosition, FVector2D GraphPosition, UEdGraph& Graph) { return FReply::Unhandled(); }
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virtual FReply DroppedOnAction(TSharedRef<struct FEdGraphSchemaAction> Action) { return FReply::Unhandled(); }
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virtual FReply DroppedOnCategory(FText Category) { return FReply::Unhandled(); }
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virtual void OnDragBegin(const TSharedRef<class SGraphPin>& InPin) {}
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// End of interface to override
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virtual bool IsSupportedBySchema(const class UEdGraphSchema* Schema) const { return true; }
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bool HasFeedbackMessage();
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void SetFeedbackMessage(const TSharedPtr<SWidget>& Message);
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void SetSimpleFeedbackMessage(const FSlateBrush* Icon, const FSlateColor& IconColor, const FText& Message);
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protected:
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UEdGraphPin* GetHoveredPin() const;
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UEdGraphNode* GetHoveredNode() const;
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UEdGraph* GetHoveredGraph() const;
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/** Constructs the window and widget if applicable */
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virtual void Construct() override;
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private:
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EVisibility GetIconVisible() const;
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EVisibility GetErrorIconVisible() const;
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// The pin that the drag action is currently hovering over
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TWeakObjectPtr<class UEdGraphPin> HoveredPin;
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// The node that the drag action is currently hovering over
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TSharedPtr<class SGraphNode> HoveredNode;
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// The graph that the drag action is currently hovering over
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TSharedPtr<class SGraphPanel> HoveredGraph;
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protected:
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// Name of category we are hovering over
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FText HoveredCategoryName;
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// Action we are hovering over
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TWeakPtr<struct FEdGraphSchemaAction> HoveredAction;
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// drop target status
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bool bDropTargetValid;
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};
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// Drag-drop action where an FEdGraphSchemaAction should be performed when dropped
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class GRAPHEDITOR_API FGraphSchemaActionDragDropAction : public FGraphEditorDragDropAction
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{
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public:
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DRAG_DROP_OPERATOR_TYPE(FGraphSchemaActionDragDropAction, FGraphEditorDragDropAction)
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// FGraphEditorDragDropAction interface
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virtual void HoverTargetChanged() override;
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virtual FReply DroppedOnPanel( const TSharedRef< class SWidget >& Panel, FVector2D ScreenPosition, FVector2D GraphPosition, UEdGraph& Graph) override;
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// End of FGraphEditorDragDropAction
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static TSharedRef<FGraphSchemaActionDragDropAction> New(TSharedPtr<FEdGraphSchemaAction> InActionNode )
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{
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TSharedRef<FGraphSchemaActionDragDropAction> Operation = MakeShareable(new FGraphSchemaActionDragDropAction);
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Operation->ActionNode = InActionNode;
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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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/** */
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TSharedPtr<FEdGraphSchemaAction> ActionNode;
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};
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