46 lines
2.2 KiB
C++
46 lines
2.2 KiB
C++
// Copyright 2017 ~ 2022 Critical Failure Studio Ltd. All rights reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "Layout/ArrangedWidget.h"
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#include "Widgets/SWidget.h"
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#include "ConnectionDrawingPolicy.h"
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#include "Editors/Util/PaperZDSlateSupport.h"
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class FSlateWindowElementList;
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class UEdGraph;
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/////////////////////////////////////////////////////
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// FPaperZDStateMachineConnectionDrawingPolicy
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// This class draws the connections for an UEdGraph with a state machine schema
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class FPaperZDStateMachineConnectionDrawingPolicy : public FConnectionDrawingPolicy
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{
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protected:
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TMap<UEdGraphNode*, int32> NodeWidgetMap;
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public:
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//
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FPaperZDStateMachineConnectionDrawingPolicy(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 DetermineLinkGeometry(
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FArrangedChildren& ArrangedNodes,
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TSharedRef<SWidget>& OutputPinWidget,
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UEdGraphPin* OutputPin,
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UEdGraphPin* InputPin,
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/*out*/ FArrangedWidget*& StartWidgetGeometry,
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/*out*/ FArrangedWidget*& EndWidgetGeometry
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) 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 ZD::Slate::FVector2& StartPoint, const ZD::Slate::FVector2& EndPoint, const FConnectionParams& Params) override;
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virtual void DrawPreviewConnector(const FGeometry& PinGeometry, const ZD::Slate::FVector2& StartPoint, const ZD::Slate::FVector2& EndPoint, UEdGraphPin* Pin) override;
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virtual ZD::Slate::FVector2 ComputeSplineTangent(const ZD::Slate::FVector2& Start, const ZD::Slate::FVector2& End) const override;
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// End of FConnectionDrawingPolicy interface
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protected:
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void Internal_DrawLineWithArrow(const ZD::Slate::FVector2& StartAnchorPoint, const ZD::Slate::FVector2& EndAnchorPoint, const FConnectionParams& Params);
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};
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