Mk2Rev1

various bugfixes and such.
also bookmarks, temp song loaderm and undo overhaul with near complete multiplayer, but menu items disabled. i really wish i could split this into multiple commits, but i don't know how to work unreal.

Plugins/ZipUtility-ue4/Source/ZipUtility/Private/ZipFileFunctionInternalCallback.h

@@ -0,0 +1,65 @@
+#pragma once
+
+#include "ZipUtilityInterface.h"
+#include "ZipFileFunctionInternalCallback.generated.h"
+
+/**
+* This is used to provide a callback for unzipping single files, it ends up getting called from the ListFiles lambda.
+*/
+UCLASS(ClassGroup = ZipUtility)
+class ZIPUTILITY_API UZipFileFunctionInternalCallback : public UObject, public IZipUtilityInterface
+{
+	GENERATED_BODY()
+
+private:
+
+	/** Compression format used to unzip */
+	UPROPERTY(Transient)
+	TEnumAsByte<ZipUtilityCompressionFormat> CompressionFormat;
+
+	/** Path of the file */
+	UPROPERTY(Transient)
+	FString File;
+
+	UPROPERTY(Transient)
+	FString DestinationFolder;
+
+	/** Current File index parsed */
+	UPROPERTY(Transient)
+	int32 FileIndex = 0;
+
+	/** Callback object */
+	UPROPERTY(Transient)
+	UObject* Callback;
+
+	UPROPERTY(Transient)
+	bool bSingleFile;
+
+	UPROPERTY(Transient)
+	bool bFileFound;
+
+	UPROPERTY(Transient)
+	bool bUnzipto;
+
+public:
+	UZipFileFunctionInternalCallback();
+
+	//IZipUtilityInterface overrides
+	virtual void OnProgress_Implementation(const FString& archive, float percentage, int32 bytes) override {};
+
+	virtual void OnDone_Implementation(const FString& archive, EZipUtilityCompletionState CompletionState) override {};
+
+	virtual void OnStartProcess_Implementation(const FString& archive, int32 bytes) override {};
+
+	virtual void OnFileDone_Implementation(const FString& archive, const FString& file) override {
+		UE_LOG(LogTemp, Log, TEXT("OnFileDone_Implementation")); 
+	};
+
+	virtual void OnFileFound_Implementation(const FString& archive, const FString& fileIn, int32 size) override;
+
+	void SetCallback(const FString& FileName, UObject* CallbackIn, TEnumAsByte<ZipUtilityCompressionFormat> CompressionFormatIn = ZipUtilityCompressionFormat::COMPRESSION_FORMAT_UNKNOWN);
+	void SetCallback(const FString& FileName, const FString& DestinationFolder, UObject* CallbackIn, TEnumAsByte<ZipUtilityCompressionFormat> CompressionFormatIn = ZipUtilityCompressionFormat::COMPRESSION_FORMAT_UNKNOWN);
+
+	FORCEINLINE bool GetSingleFile() const { return bSingleFile; }
+	FORCEINLINE void SetSingleFile(bool val) { bSingleFile = val; }
+};