AudioLinkSettingsAbstract.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "Templates/SharedPointer.h"
#include "AudioLinkSettingsAbstract.generated.h"
 
class UAudioLinkSettingsAbstract;
 
class IAudioLinkSettingsProxy
{
public:
    virtual ~IAudioLinkSettingsProxy() = default;
protected:
#if WITH_EDITOR
    friend class UAudioLinkSettingsAbstract;
    virtual void RefreshFromSettings(UAudioLinkSettingsAbstract* InSettings, FPropertyChangedEvent& InPropertyChangedEvent) = 0;
#endif //WITH_EDITOR
};
 
UCLASS(config = Engine, abstract, editinlinenew, BlueprintType, MinimalAPI)
class UAudioLinkSettingsAbstract : public UObject
{
    GENERATED_BODY()
 
public:
    using FSharedSettingsProxyPtr = TSharedPtr<IAudioLinkSettingsProxy, ESPMode::ThreadSafe>;
 
    virtual FName GetFactoryName() const PURE_VIRTUAL(UAudioLinkSettingsAbstract::GetFactoryName, return {};);
    
    virtual const FSharedSettingsProxyPtr& GetProxy() const
    {
        if (!ProxyInstance.IsValid())
        {
            ProxyInstance = MakeProxy();
        }
        return ProxyInstance;
    }
 
    template<typename T> 
    auto GetCastProxy() const
    {
        return StaticCastSharedPtr<T>(GetProxy());
    }
 
protected:
#if WITH_EDITOR 
    void PostEditChangeProperty(struct FPropertyChangedEvent& PropertyChangedEvent)
    {
        GetProxy()->RefreshFromSettings(this, PropertyChangedEvent);
    }
#endif //WITH_EDITOR
 
    virtual FSharedSettingsProxyPtr MakeProxy() const PURE_VIRTUAL(UAudioLinkSettingsAbstract::MakeProxy, return {};);
    mutable FSharedSettingsProxyPtr ProxyInstance;
};