45 lines
1.9 KiB
C++
45 lines
1.9 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "ConnectionDrawingPolicy.h"
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#include "Containers/Map.h"
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#include "CoreMinimal.h"
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#include "HAL/Platform.h"
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#include "Layout/ArrangedWidget.h"
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#include "Math/Vector2D.h"
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#include "Templates/SharedPointer.h"
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#include "Widgets/SWidget.h"
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class FArrangedChildren;
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class FArrangedWidget;
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class FSlateRect;
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class FSlateWindowElementList;
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class SWidget;
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class UEdGraph;
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class UEdGraphNode;
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class UEdGraphPin;
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struct FGeometry;
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class AIGRAPH_API FAIGraphConnectionDrawingPolicy : public FConnectionDrawingPolicy
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{
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protected:
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UEdGraph* GraphObj;
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TMap<UEdGraphNode*, int32> NodeWidgetMap;
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public:
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FAIGraphConnectionDrawingPolicy(int32 InBackLayerID, int32 InFrontLayerID, float ZoomFactor, const FSlateRect& InClippingRect, FSlateWindowElementList& InDrawElements, UEdGraph* InGraphObj);
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// FConnectionDrawingPolicy interface
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virtual void DetermineWiringStyle(UEdGraphPin* OutputPin, UEdGraphPin* InputPin, /*inout*/ FConnectionParams& Params) override;
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virtual void Draw(TMap<TSharedRef<SWidget>, FArrangedWidget>& PinGeometries, FArrangedChildren& ArrangedNodes) override;
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virtual void DrawSplineWithArrow(const FGeometry& StartGeom, const FGeometry& EndGeom, const FConnectionParams& Params) override;
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virtual void DrawSplineWithArrow(const FVector2f& StartPoint, const FVector2f& EndPoint, const FConnectionParams& Params) override;
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virtual void DrawPreviewConnector(const FGeometry& PinGeometry, const FVector2f& StartPoint, const FVector2f& EndPoint, UEdGraphPin* Pin) override;
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virtual FVector2f ComputeSplineTangent(const FVector2f& Start, const FVector2f& End) const override;
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// End of FConnectionDrawingPolicy interface
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protected:
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void Internal_DrawLineWithArrow(const UE::Slate::FDeprecateVector2DParameter& StartAnchorPoint, const UE::Slate::FDeprecateVector2DParameter& EndAnchorPoint, const FConnectionParams& Params);
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};
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