120 lines
3.4 KiB
C++
120 lines
3.4 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "Containers/Map.h"
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#include "Containers/UnrealString.h"
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#include "CoreMinimal.h"
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#include "EditorSubsystem.h"
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#include "UObject/Class.h"
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#include "UObject/Object.h"
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#include "UObject/ObjectMacros.h"
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#include "UObject/ObjectPtr.h"
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#include "UObject/UObjectGlobals.h"
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#include "UObject/WeakObjectPtrTemplates.h"
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#include "ClassTemplateEditorSubsystem.generated.h"
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#define UE_API GAMEPROJECTGENERATION_API
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// Forward Declarations
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class FSubsystemCollectionBase;
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class FText;
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class UClass;
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UCLASS(MinimalAPI, Abstract)
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class UClassTemplate : public UObject
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{
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GENERATED_BODY()
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public:
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UE_API virtual void BeginDestroy() override;
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// Returns the directory containing the text file template for
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// the given base generated class.
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UE_API virtual FString GetDirectory() const;
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// Reads the header template text from disk. If failure to read from
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// disk, returns false and provides text reason.
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UE_API bool ReadHeader(FString& OutHeaderFileText, FText& OutFailReason) const;
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// Reads the source template text from disk. If failure to read from
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// disk, returns false and provides text reason.
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UE_API bool ReadSource(FString& OutSourceFileText, FText& OutFailReason) const;
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UE_API const UClass* GetGeneratedBaseClass() const;
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protected:
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// Sets the generated base class associated with the given template
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UE_API void SetGeneratedBaseClass(UClass* InClass);
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// Returns the filename associated with the provided class template
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// without an extension. Defaults to class name.
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UE_API virtual FString GetFilename() const;
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// Returns full header filename including '.h.template' extension
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UE_API FString GetHeaderFilename() const;
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// Returns full sourcefilename including '.cpp.template' extension
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UE_API FString GetSourceFilename() const;
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private:
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// Base UClass of which template class corresponds.
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UPROPERTY(Transient)
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TObjectPtr<UClass> GeneratedBaseClass;
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};
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UCLASS(MinimalAPI, Abstract)
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class UPluginClassTemplate : public UClassTemplate
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{
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GENERATED_BODY()
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public:
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// Returns the directory containing the text file template for
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// the given base generated class.
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UE_API virtual FString GetDirectory() const override;
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protected:
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UPROPERTY(Transient)
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FString PluginName;
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};
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UCLASS(MinimalAPI)
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class UClassTemplateEditorSubsystem : public UEditorSubsystem
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{
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GENERATED_BODY()
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private:
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using FTemplateRegistry = TMap<TWeakObjectPtr<const UClass>, TWeakObjectPtr<const UClassTemplate>>;
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FTemplateRegistry TemplateRegistry;
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public:
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UE_API UClassTemplateEditorSubsystem();
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UE_API virtual void Initialize(FSubsystemCollectionBase& Collection) override;
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UE_API virtual void Deinitialize() override;
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// Registers all currently loaded template classes with the internal registry.
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UE_API void RegisterTemplates();
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// Returns path to the directory containing all engine class templates.
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static UE_API FString GetEngineTemplateDirectory();
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// Returns whether or not class has registered template
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UE_API bool ContainsClassTemplate(const UClass* InClass) const;
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// Returns class template if one is registered.
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UE_API const UClassTemplate* FindClassTemplate(const UClass* InClass) const;
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friend class UClassTemplate;
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private:
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// Registers a template class with the subsystem
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UE_API void Register(const UClassTemplate* InClassTemplate);
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// Unregisters a template class with the subsystem
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UE_API bool Unregister(const UClassTemplate* InClassTemplate);
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};
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#undef UE_API
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