DataflowNodeColorsRegistry.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "Dataflow/DataflowGraph.h"
#include "Dataflow/DataflowSettings.h"
#include "ChaosLog.h"
 
struct FDataflowNode;
struct FDataflowConnection;
    
class FLazySingleton;
 
namespace UE::Dataflow
{
    //
    // Registry for custom Node colors
    //
    class FNodeColorsRegistry
    {
    public:
        static DATAFLOWCORE_API FNodeColorsRegistry& Get();
        static DATAFLOWCORE_API void TearDown();
 
        DATAFLOWCORE_API void RegisterNodeColors(const FName& Category, const FNodeColors& NodeColors);
        DATAFLOWCORE_API FLinearColor GetNodeTitleColor(const FName& Category) const;
        DATAFLOWCORE_API FLinearColor GetNodeBodyTintColor(const FName& Category) const;
        DATAFLOWCORE_API void NodeColorsChangedInSettings(const FNodeColorsMap& NodeColorsMap);
 
    private:
        DATAFLOWCORE_API FNodeColorsRegistry();
        DATAFLOWCORE_API ~FNodeColorsRegistry();
 
        FNodeColorsMap ColorsMap;                   // [Category] -> Colors
        FDelegateHandle DataflowSettingsChangedDelegateHandle;
 
        friend FLazySingleton;
    };
 
    //
    // Registry for custom Pin colors
    //
    class FPinSettingsRegistry
    {
    public:
        static DATAFLOWCORE_API FPinSettingsRegistry& Get();
        static DATAFLOWCORE_API void TearDown();
 
        DATAFLOWCORE_API void RegisterPinSettings(const FName& PinType, const FPinSettings& InSettings);
        DATAFLOWCORE_API FLinearColor GetPinColor(const FName& PinType) const;
        DATAFLOWCORE_API float GetPinWireThickness(const FName& PinType) const;
        DATAFLOWCORE_API void PinSettingsChangedInSettings(const FPinSettingsMap& PinSettingsrMap);
        DATAFLOWCORE_API bool IsPinTypeRegistered(const FName& PinType) const;
 
    private:
        DATAFLOWCORE_API FPinSettingsRegistry();
        DATAFLOWCORE_API ~FPinSettingsRegistry();
 
        FPinSettingsMap SettingsMap;                    // [PinType] -> {Color, WireThickness}
        FDelegateHandle DataflowSettingsChangedDelegateHandle;
 
        friend FLazySingleton;
    };
}