47 lines
1.9 KiB
C
47 lines
1.9 KiB
C
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// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "UObject/Object.h"
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#include "AssetData.h"
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#include "EditorFramework/AssetImportData.h"
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class IAssetRegistry;
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/** Class responsible for maintaing a cache of clean source file names (bla.txt) to asset data */
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class UNREALED_API FAssetSourceFilenameCache
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{
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public:
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FAssetSourceFilenameCache();
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/** Singleton access */
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static FAssetSourceFilenameCache& Get();
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/** Helper functions to extract asset import information from asset registry tags */
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static TOptional<FAssetImportInfo> ExtractAssetImportInfo(const FAssetData& AssetData);
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/** Retrieve a list of assets that were imported from the specified filename */
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TArray<FAssetData> GetAssetsPertainingToFile(const IAssetRegistry& Registry, const FString& AbsoluteFilename) const;
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/** Shutdown this instance of the cache */
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void Shutdown();
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/** Event for when an asset has been renamed, and has been updated in our source file cache */
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DECLARE_EVENT_TwoParams(FAssetSourceFilenameCache, FAssetRenamedEvent, const FAssetData&, const FString&);
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FAssetRenamedEvent& OnAssetRenamed() { return AssetRenamedEvent; }
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private:
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/** Delegate bindings that keep the cache up-to-date */
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void HandleOnAssetAdded(const FAssetData& AssetData);
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void HandleOnAssetRemoved(const FAssetData& AssetData);
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void HandleOnAssetRenamed(const FAssetData& AssetData, const FString& OldPath);
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void HandleOnAssetUpdated(const FAssetImportInfo& OldData, const UAssetImportData* ImportData);
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/** Event that is triggered when an asset has been renamed, and we've updated our cache */
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FAssetRenamedEvent AssetRenamedEvent;
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/** Map of clean filenames (no leading path information) to object paths that were imported with that file */
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TMap<FString, TSet<FName>> SourceFileToObjectPathCache;
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};
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