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90 lines
2.2 KiB
C++
90 lines
2.2 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
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#pragma once
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class UEdGraphPin;
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/////////////////////////////////////////////////////
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// FGraphPinHandle
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/** A handle to a pin, defined by its owning node's GUID, and the pin's name. Used to reference a pin without referring to its widget */
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struct GRAPHEDITOR_API FGraphPinHandle
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{
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/** The GUID of the node to which this pin belongs */
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FGuid NodeGuid;
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/** The name of the pin we are referencing */
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FString PinName;
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/** Constructor */
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FGraphPinHandle(UEdGraphPin* InPin);
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/** Find a pin widget in the specified panel from this handle */
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TSharedPtr<class SGraphPin> FindInGraphPanel(const class SGraphPanel& InPanel) const;
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};
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/////////////////////////////////////////////////////
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// FGraphSplineOverlapResult
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struct GRAPHEDITOR_API FGraphSplineOverlapResult
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{
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public:
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FGraphSplineOverlapResult()
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: Pin1Handle(nullptr)
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, Pin2Handle(nullptr)
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, BestPinHandle(nullptr)
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, Pin1(nullptr)
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, Pin2(nullptr)
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, DistanceSquared(FLT_MAX)
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, DistanceSquaredToPin1(FLT_MAX)
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, DistanceSquaredToPin2(FLT_MAX)
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{
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}
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FGraphSplineOverlapResult(UEdGraphPin* InPin1, UEdGraphPin* InPin2, float InDistanceSquared, float InDistanceSquaredToPin1, float InDistanceSquaredToPin2)
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: Pin1Handle(InPin1)
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, Pin2Handle(InPin2)
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, BestPinHandle(nullptr)
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, Pin1(InPin1)
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, Pin2(InPin2)
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, DistanceSquared(InDistanceSquared)
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, DistanceSquaredToPin1(InDistanceSquaredToPin1)
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, DistanceSquaredToPin2(InDistanceSquaredToPin2)
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{
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}
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bool IsValid() const
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{
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return DistanceSquared < FLT_MAX;
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}
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void ComputeBestPin();
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float GetDistanceSquared() const
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{
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return DistanceSquared;
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}
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TSharedPtr<class SGraphPin> GetBestPinWidget(const class SGraphPanel& InGraphPanel) const
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{
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TSharedPtr<class SGraphPin> Result;
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if (IsValid())
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{
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Result = BestPinHandle.FindInGraphPanel(InGraphPanel);
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}
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return Result;
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}
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bool GetPins(const class SGraphPanel& InGraphPanel, UEdGraphPin*& OutPin1, UEdGraphPin*& OutPin2) const;
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protected:
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FGraphPinHandle Pin1Handle;
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FGraphPinHandle Pin2Handle;
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FGraphPinHandle BestPinHandle;
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UEdGraphPin* Pin1;
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UEdGraphPin* Pin2;
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float DistanceSquared;
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float DistanceSquaredToPin1;
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float DistanceSquaredToPin2;
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};
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