public static byte[] DecompressFile(HuffmanCode code, string path)
{
byte[] compressedFileBytes = File.ReadAllBytes(path);
List <byte> originalFileBytes = new List <byte>();
StringBuilder binaryCode = new StringBuilder();
int length = 0;
for (int i = 0; i < compressedFileBytes.Length; i++)
{
binaryCode.Append(Convert.ToString(compressedFileBytes[i], 2));
}
while (binaryCode.Length > length)
{
int index = code.BinaryCodes.ToList().IndexOf(binaryCode.ToString(0, length));
if (index == -1)
{
length++;
}
else
{
originalFileBytes.Add((byte)index);
binaryCode.Remove(0, length);
length = 0;
}
}
Debug.WriteLine($"Decompressed File Bytes\n{binaryCode}");
return(originalFileBytes.ToArray());
}
private HuffmanCode DeserializeItem(string fileName)
{
StreamReader sw = new StreamReader(fileName);
string swr = sw.ReadToEnd();
HuffmanCode huffmanCode = JsonConvert.DeserializeObject <HuffmanCode>(swr);
return(huffmanCode);
}
public bool ImportHuffmanCodes(string path)
{
try
{
HuffmanCode item = DeserializeItem(path);
this.BinaryCodes = item.BinaryCodes;
this.BinaryCodesName = item.BinaryCodesName;
return(true);
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
return(false);
}
}
public static byte[] CompressFile(HuffmanCode code, string path)
{
byte[] fileBytes = File.ReadAllBytes(path);
StringBuilder compressedCode = new StringBuilder();
for (int i = 0; i < fileBytes.Length; i++)
{
compressedCode.Append(code.BinaryCodes[(int)fileBytes[i]]);
}
Debug.WriteLine($"Compressed Code: {compressedCode}");
int numOfBytes = compressedCode.Length / 8;
byte[] bytes = new byte[numOfBytes];
for (int i = 0; i < numOfBytes; i++)
{
bytes[i] = Convert.ToByte(compressedCode.ToString(0, 8), 2);
compressedCode.Remove(0, 8);
}
return(bytes);
}
public MainWindow()
{
InitializeComponent();
HuffmanCode = new HuffmanCode();
;
}
