Files
UnrealEngine/Engine/Source/Editor/AudioEditor/Private/SoundCueGraphConnectionDrawingPolicy.h
2025-05-18 13:04:45 +08:00

78 lines
2.4 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "ConnectionDrawingPolicy.h"
#include "Containers/Map.h"
#include "Containers/SparseArray.h"
#include "EdGraphUtilities.h"
#include "HAL/Platform.h"
#include "Math/Color.h"
#include "Templates/SharedPointer.h"
class FArrangedChildren;
class FArrangedWidget;
class FSlateRect;
class FSlateWindowElementList;
class SWidget;
class UEdGraph;
class UEdGraphNode;
class UEdGraphPin;
struct FSoundCueGraphConnectionDrawingPolicyFactory : public FGraphPanelPinConnectionFactory
{
public:
virtual ~FSoundCueGraphConnectionDrawingPolicyFactory() {}
// FGraphPanelPinConnectionFactory
virtual class FConnectionDrawingPolicy* CreateConnectionPolicy(const class UEdGraphSchema* Schema, int32 InBackLayerID, int32 InFrontLayerID, float ZoomFactor, const class FSlateRect& InClippingRect, class FSlateWindowElementList& InDrawElements, class UEdGraph* InGraphObj) const override;
// ~FGraphPanelPinConnectionFactory
};
/////////////////////////////////////////////////////
// FSoundCueGraphConnectionDrawingPolicy
// This class draws the connections for an UEdGraph using a SoundCue schema
class FSoundCueGraphConnectionDrawingPolicy : public FConnectionDrawingPolicy
{
protected:
// Times for one execution pair within the current graph
struct FTimePair
{
double PredExecTime;
double ThisExecTime;
FTimePair()
: PredExecTime(0.0)
, ThisExecTime(0.0)
{
}
};
// Map of pairings
typedef TMap<UEdGraphNode*, FTimePair> FExecPairingMap;
// Map of nodes that preceeded before a given node in the execution sequence (one entry for each pairing)
TMap<UEdGraphNode*, FExecPairingMap> PredecessorNodes;
UEdGraph* GraphObj;
FLinearColor ActiveColor;
FLinearColor InactiveColor;
float ActiveWireThickness;
float InactiveWireThickness;
public:
FSoundCueGraphConnectionDrawingPolicy(int32 InBackLayerID, int32 InFrontLayerID, float ZoomFactor, const FSlateRect& InClippingRect, FSlateWindowElementList& InDrawElements, UEdGraph* InGraphObj);
void BuildAudioFlowRoadmap();
// FConnectionDrawingPolicy interface
virtual void DetermineWiringStyle(UEdGraphPin* OutputPin, UEdGraphPin* InputPin, /*inout*/ FConnectionParams& Params) override;
virtual void Draw(TMap<TSharedRef<SWidget>, FArrangedWidget>& PinGeometries, FArrangedChildren& ArrangedNodes) override;
// End of FConnectionDrawingPolicy interface
};