Files
UnrealEngineUWP/Engine/Source/Editor/EnvironmentQueryEditor/Private/EnvironmentQueryConnectionDrawingPolicy.h
Michael Noland c97e8231bb GraphEditor: Refactored connection drawing policy API to be more flexible, passing a parameter structure around instead of loose values (FConnectionParams)
Remove duplicated implementations of DrawConnection in subclasses that draw non-curved splines, overriding ComputeSplineTangent instead
Upgrade note: Any editor plugins that contain a FConnectionDrawingPolicy subclass will need to update calls to DrawSplineWithArrow, DrawConnection, and DetermineWiringStyle

[CL 2402661 by Michael Noland in Main branch]
2015-01-10 00:31:36 -05:00

28 lines
1.5 KiB
C++

// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
#pragma once
// This class draws the connections for an UEdGraph with a behavior tree schema
class ENVIRONMENTQUERYEDITOR_API FEnvironmentQueryConnectionDrawingPolicy : public FConnectionDrawingPolicy
{
protected:
UEdGraph* GraphObj;
TMap<UEdGraphNode*, int32> NodeWidgetMap;
public:
//
FEnvironmentQueryConnectionDrawingPolicy(int32 InBackLayerID, int32 InFrontLayerID, float ZoomFactor, const FSlateRect& InClippingRect, FSlateWindowElementList& InDrawElements, UEdGraph* InGraphObj);
// FConnectionDrawingPolicy interface
virtual void DetermineWiringStyle(UEdGraphPin* OutputPin, UEdGraphPin* InputPin, /*inout*/ FConnectionParams& Params) override;
virtual void Draw(TMap<TSharedRef<SWidget>, FArrangedWidget>& PinGeometries, FArrangedChildren& ArrangedNodes) override;
virtual void DrawSplineWithArrow(const FGeometry& StartGeom, const FGeometry& EndGeom, const FConnectionParams& Params) override;
virtual void DrawSplineWithArrow(const FVector2D& StartPoint, const FVector2D& EndPoint, const FConnectionParams& Params) override;
virtual void DrawPreviewConnector(const FGeometry& PinGeometry, const FVector2D& StartPoint, const FVector2D& EndPoint, UEdGraphPin* Pin) override;
virtual FVector2D ComputeSplineTangent(const FVector2D& Start, const FVector2D& End) const override;
// End of FConnectionDrawingPolicy interface
protected:
void Internal_DrawLineWithArrow(const FVector2D& StartAnchorPoint, const FVector2D& EndAnchorPoint, const FConnectionParams& Params);
};