static void Main(string[] args)
{
string input = "h shdh s dsh dhsh dalsdasdk a";
HuffmanTree huffmanTree = new HuffmanTree();
huffmanTree.Build(input);
BitArray encoded = huffmanTree.Encode(input);
Console.Write("Encoded: ");
foreach (bool bit in encoded)
{
Console.Write((bit ? 1 : 0) + "");
}
Console.WriteLine();
string decoded = huffmanTree.Decode(encoded);
Console.WriteLine("Decoded: " + decoded);
Console.ReadLine();
}
static void Main(string[] args)
{
Console.OutputEncoding = Encoding.UTF8;
Console.Write("Enter Text․");
string input = Console.ReadLine();
HuffmanTree huffmanTree = new HuffmanTree();
huffmanTree.Build(input);
BitArray encoded = huffmanTree.Encode(input);
Console.Write("Encoded Text․ ");
foreach (bool bit in encoded)
{
Console.Write((bit ? 1 : 0) + "");
}
Console.WriteLine();
Console.WriteLine();
//string decoded = huffmanTree.Decode(encoded);
foreach (var item in huffmanTree.Frequencies)
{
Console.Write(item.Key + " " + item.Value + " ");
List <bool> key = huffmanTree.Root.Traverse(item.Key, new List <bool>());
foreach (var bit in key)
{
Console.Write((bit ? 1 : 0));
}
Console.WriteLine();
}
Console.ReadLine();
}
private void btnZakoduj_Click(object sender, EventArgs e)
{
if (richTextBox1.Text != string.Empty)
{
var saveFile = new SaveFileDialog();
saveFile.ShowDialog();
var fileName = saveFile.FileName;
FileStream fs = new FileStream(fileName, FileMode.Create, FileAccess.ReadWrite);
try
{
var sw = new StreamWriter(fs);
HuffmanTree huffmanTree = new HuffmanTree();
// Build the Huffman tree
huffmanTree.Build(richTextBox1.Text);
// Encode
BitArray encoded = huffmanTree.Encode(richTextBox1.Text);
string encodedS = "";
foreach (bool bit in encoded)
{
encodedS += (bit ? 1 : 0) + "";
}
Node.setCodeToTheTree("", huffmanTree.Root);
// Writing symbols
huffmanTree.PrintfLeafAndCodes(huffmanTree.Root);
string symbols = "";
var bity_slownika = 0;
foreach (var node in huffmanTree.nodesToWrite)
{
symbols += node.Symbol + node.Code + ";";
bity_slownika += 8 + node.Code.Length;
}
sw.WriteLine(symbols);
sw.WriteLine(encodedS);
var wynikForm = new Wynik_Kodowania_form(richTextBox1.Text, encodedS, symbols, huffmanTree.nodesToWrite, bity_slownika);
// var zajetosc = sizeof(char) * txtBoxHaslo.Text.Length * 8;// bo sizeof podaje w bajtach a chcemy bity
// MessageBox.Show("Nie zakodowany tekst zajmuje "+zajetosc.ToString()+" bitów");
wynikForm.ShowDialog();
sw.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
else
{
MessageBox.Show("Wpisz hasło do zakodowania");
}
}
static void Main(string[] args)
{
string textFromFile;
using (FileStream fstream = File.OpenRead(@"../../text.txt"))
{
byte[] array = new byte[fstream.Length];
fstream.Read(array, 0, array.Length);
textFromFile = Encoding.Default.GetString(array);
}
string input = textFromFile;
HuffmanTree huffmanTree = new HuffmanTree();
huffmanTree.Build(input);
BitArray encoded = huffmanTree.Encode(input);
byte[] bytes = new byte[encoded.Length / 8 + (encoded.Length % 8 == 0 ? 0 : 1)];
encoded.CopyTo(bytes, 0);
File.WriteAllBytes(@"../../encoded.bin", bytes);
/*
* Console.Write("Encoded: ");
* foreach (bool bit in encoded)
* {
* Console.Write((bit ? 1 : 0) + "");
* }
* Console.WriteLine();
*/
string decoded = huffmanTree.Decode(encoded);
using (FileStream fstream = new FileStream(@"../../decoded.txt", FileMode.OpenOrCreate))
{
byte[] array = Encoding.Default.GetBytes(decoded);
fstream.Write(array, 0, array.Length);
}
/*
* Console.WriteLine("Decoded: " + decoded);
* Console.ReadLine();
*/
}
private void button1_Click(object sender, EventArgs e)
{
string s = textBox1.Text;
int n = s.Length;
List <CharFreq> list = new List <CharFreq>();
textBox2.Text = string.Empty;
for (int i = 0; i < n; i++)
{
bool found = false;
char c = s[i];
CharFreq cf = new CharFreq();
for (int j = 0; !found && j < list.Count; j++)
{
if (c == list[j].ch)
{
found = true;
cf.ch = c;
cf.freq = 1 + list[j].freq;
list.RemoveAt(j);
list.Add(cf);
}
}
if (!found)
{
cf.ch = c;
cf.freq = 1;
list.Add(cf);
}
}
HuffmanTree ht = new HuffmanTree();
BinaryTreeNode <CharFreq> root = ht.Build(list, list.Count);
InorderTraversal(root);
textBox2.Text += "\r\nKarakterler = " + n.ToString() + "\r\n";
textBox2.Text += "Düğümler = " + leafNodes.ToString() + "\r\n";
textBox2.Text += "Sıkıştırma oranı %" +
(100.0 - 100.0 * ((double)leafNodes) / n).ToString("F2") + "\r\n";
}