private void DecodeButton_Click(object sender, RoutedEventArgs e)
{
var ofd = new OpenFileDialog {
Filter = "Image Files(*.BMP)|*.BMP"
};
Bitmap bmp;
if (ofd.ShowDialog().Value)
{
bmp = new Bitmap(ofd.FileName);
}
else
{
MessageBox.Show("Декодирование прервано");
return;
}
string text;
int codeLength;
try
{
var code = BitmapCoder.GetCode(bmp);
text = _coders[CodeComboBox.SelectedIndex].Decode(code, out codeLength);
}
catch (Exception c)
{
MessageBox.Show("Декодирование прервано. Возможно, картинка закодирована другим алгоритмом");
return;
}
var sfd = new SaveFileDialog {
Filter = "Text file(*.txt)|*.txt"
};
if (sfd.ShowDialog().Value)
{
var sw = new StreamWriter(sfd.FileName);
sw.Write(text);
sw.Close();
}
else
{
MessageBox.Show("Декодирование прервано");
return;
}
var compressionFactor = (text.Length * 16.0) / codeLength;
CompressionFactorLabel.Content = "Compression factor = " + compressionFactor;
}
private void CodeButton_Click(object sender, RoutedEventArgs e)
{
var ofd = new OpenFileDialog {
Filter = "Text file(*.txt)|*.txt"
};
string text;
if (ofd.ShowDialog().Value)
{
var sr = new StreamReader(ofd.FileName, Encoding.Default);
text = sr.ReadToEnd();
sr.Close();
}
else
{
MessageBox.Show("Кодирование прервано");
return;
}
var code = _coders[CodeComboBox.SelectedIndex].Code(text, out var codeLength);
var sfd = new SaveFileDialog {
Filter = "Image Files(*.BMP)|*.BMP"
};
if (sfd.ShowDialog().Value)
{
var bmp = BitmapCoder.GetBitmap(code);
bmp.Save(sfd.FileName);
}
else
{
MessageBox.Show("Кодирование прервано");
return;
}
var compressionFactor = (text.Length * 16.0) / codeLength;
CompressionFactorLabel.Content = "Compression factor = " + compressionFactor;
}
