From 5dcb7b822dc1763cf410d11fe3e6f7e844741a41 Mon Sep 17 00:00:00 2001
From: alcexhim <alcexhim@gmail.com>
Date: Sat, 4 Oct 2014 15:13:38 -0400
Subject: [PATCH] Added Roxor In the Groove PCK data format (without
 compression)

---
 .../FileSystem/Roxor/PCK/PCKDataFormat.cs     | 125 ++++++++++++++++++
 .../UniversalEditor.Plugins.FileSystem.csproj |   1 +
 2 files changed, 126 insertions(+)
 create mode 100644 CSharp/Plugins/UniversalEditor.Plugins.FileSystem/DataFormats/FileSystem/Roxor/PCK/PCKDataFormat.cs

diff --git a/CSharp/Plugins/UniversalEditor.Plugins.FileSystem/DataFormats/FileSystem/Roxor/PCK/PCKDataFormat.cs b/CSharp/Plugins/UniversalEditor.Plugins.FileSystem/DataFormats/FileSystem/Roxor/PCK/PCKDataFormat.cs
new file mode 100644
index 00000000..dcef00ad
--- /dev/null
+++ b/CSharp/Plugins/UniversalEditor.Plugins.FileSystem/DataFormats/FileSystem/Roxor/PCK/PCKDataFormat.cs
@@ -0,0 +1,125 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+using UniversalEditor.IO;
+using UniversalEditor.ObjectModels.FileSystem;
+
+namespace UniversalEditor.DataFormats.FileSystem.Roxor.PCK
+{
+	public class PCKDataFormat : DataFormat
+	{
+		private static DataFormatReference _dfr = null;
+		public override DataFormatReference MakeReference()
+		{
+			if (_dfr == null)
+			{
+				_dfr = base.MakeReference();
+				_dfr.Capabilities.Add(typeof(FileSystemObjectModel), DataFormatCapabilities.All);
+				_dfr.Filters.Add("Roxor In the Groove PCK archive", new byte?[][] { new byte?[] { (byte)'P', (byte)'C', (byte)'K', (byte)'F' } }, new string[] { "*.pck" });
+				_dfr.ExportOptions.Add(new CustomOptionText("Comment", "&Comment: ", String.Empty, 128));
+			}
+			return _dfr;
+		}
+
+		private string mvarComment = String.Empty;
+		public string Comment { get { return mvarComment; } set { mvarComment = value; } }
+
+		protected override void LoadInternal(ref ObjectModel objectModel)
+		{
+			FileSystemObjectModel fsom = (objectModel as FileSystemObjectModel);
+			if (fsom == null) throw new ObjectModelNotSupportedException();
+
+			Reader reader = base.Accessor.Reader;
+			string signature = reader.ReadFixedLengthString(4);
+			if (signature != "PCKF") throw new InvalidDataFormatException("File does not begin with 'PCKF'");
+
+			mvarComment = reader.ReadFixedLengthString(128, Encoding.Windows1252);
+			mvarComment = mvarComment.TrimNull();
+
+			uint fileCount = reader.ReadUInt32();
+			for (uint i = 0; i < fileCount; i++)
+			{
+				uint compressedlength = reader.ReadUInt32();
+				uint decompressedLength = reader.ReadUInt32();
+				uint offset = reader.ReadUInt32();
+				uint fileNameLength = reader.ReadUInt32();
+				bool compressed = (reader.ReadUInt32() != 0);
+				
+				string fileName = reader.ReadFixedLengthString(fileNameLength, Encoding.Windows1252);
+				
+				File file = fsom.AddFile(fileName);
+				file.Size = decompressedLength;
+				file.Properties.Add("reader", reader);
+				file.Properties.Add("offset", offset);
+				file.Properties.Add("compressed", compressed);
+				file.Properties.Add("CompressedLength", compressedlength);
+				file.Properties.Add("DecompressedLength", decompressedLength);
+				file.DataRequest += file_DataRequest;
+			}
+		}
+
+		private void file_DataRequest(object sender, DataRequestEventArgs e)
+		{
+			File file = (sender as File);
+			Reader reader = (Reader)file.Properties["reader"];
+			uint offset = (uint)file.Properties["offset"];
+			uint compressedLength = (uint)file.Properties["CompressedLength"];
+			uint decompressedLength = (uint)file.Properties["DecompressedLength"];
+			bool compressed = (bool)file.Properties["compressed"];
+
+			reader.Seek(offset, SeekOrigin.Begin);
+			byte[] compressedData = reader.ReadBytes(compressedLength);
+			byte[] decompressedData = compressedData;
+			if (compressed)
+			{
+
+			}
+
+			e.Data = decompressedData;
+		}
+
+		protected override void SaveInternal(ObjectModel objectModel)
+		{
+			FileSystemObjectModel fsom = (objectModel as FileSystemObjectModel);
+			if (fsom == null) throw new ObjectModelNotSupportedException();
+
+			Writer writer = base.Accessor.Writer;
+			writer.WriteFixedLengthString("PCKF");
+			writer.WriteFixedLengthString(mvarComment, Encoding.Windows1252, 128);
+
+			File[] files = fsom.GetAllFiles();
+			writer.WriteUInt32((uint)files.Length);
+
+			uint offset = 136;
+			foreach (File file in files)
+			{
+				offset += (uint)(20 + file.Name.Length);
+			}
+
+			byte[][] compressedDatas = new byte[files.Length][];
+			for (int i = 0; i < files.Length; i++)
+			{
+				File file = files[i];
+				bool compressed = false;
+				byte[] decompressedData = file.GetDataAsByteArray();
+				byte[] compressedData = decompressedData;
+				compressedDatas[i] = compressedData;
+
+				writer.WriteUInt32((uint)compressedData.Length);
+				writer.WriteUInt32((uint)decompressedData.Length);
+				writer.WriteUInt32(offset);
+				writer.WriteUInt32((uint)file.Name.Length);
+				writer.WriteUInt32((uint)(compressed ? 1 : 0));
+				writer.WriteFixedLengthString(file.Name, Encoding.Windows1252, (uint)file.Name.Length);
+
+				offset += (uint)file.Size;
+			}
+			for (int i = 0; i < files.Length; i++)
+			{
+				writer.WriteBytes(compressedDatas[i]);
+			}
+			writer.Flush();
+		}
+	}
+}
diff --git a/CSharp/Plugins/UniversalEditor.Plugins.FileSystem/UniversalEditor.Plugins.FileSystem.csproj b/CSharp/Plugins/UniversalEditor.Plugins.FileSystem/UniversalEditor.Plugins.FileSystem.csproj
index b4fe5aa4..8536a5f6 100644
--- a/CSharp/Plugins/UniversalEditor.Plugins.FileSystem/UniversalEditor.Plugins.FileSystem.csproj
+++ b/CSharp/Plugins/UniversalEditor.Plugins.FileSystem/UniversalEditor.Plugins.FileSystem.csproj
@@ -130,6 +130,7 @@
     <Compile Include="DataFormats\FileSystem\PRF\PRFDataFormat.cs" />
     <Compile Include="DataFormats\FileSystem\ProDOS\ProDOSDataFormat.cs" />
     <Compile Include="DataFormats\FileSystem\REEVEsoft\Freeze\ICEDataFormat.cs" />
+    <Compile Include="DataFormats\FileSystem\Roxor\PCK\PCKDataFormat.cs" />
     <Compile Include="DataFormats\FileSystem\SevenZip\SevenZipBlockType.cs" />
     <Compile Include="DataFormats\FileSystem\SevenZip\SevenZipCoder.cs" />
     <Compile Include="DataFormats\FileSystem\SevenZip\SevenZipCoderFlags.cs" />