private async void buttonSave_Click(object sender, EventArgs e)
{
if (folderBrowserDialog.ShowDialog() == DialogResult.OK)
{
var path = @Path.Combine(folderBrowserDialog.SelectedPath, $"{compressedFile.Name}.dat");
var fileStream = new FileStream(path, FileMode.Create);
var d = new WriteStatusDelegate(WriteStatus);
await Task.Run(() =>
{
for (int position = 0; position < compressedFile.Data.Length; position++)
{
fileStream.WriteByte(compressedFile.Data[position]);
if (position % 500 == 0)
{
labelStatus.Invoke(d, $"Salvando: {(position * 100M / compressedFile.Data.Length).ToString("0.00")} %");
}
}
labelStatus.Invoke(d, $"Salvando: 100 %");
return(Task.CompletedTask);
});
fileStream.Close();
}
}
private void FileReceiver_Load(object sender, EventArgs e)
{
server = new Server();
serverThread = new Thread(async() =>
{
server.Start();
while (!server.IsStopped)
{
var context = await server.Listening();
var request = context.Request;
var setEnabled = new SetButtonSalvarEnabledDelegate(SetButtonSalvarEnabled);
buttonSalvar.Invoke(setEnabled, false);
if (request.Url.AbsolutePath == "/" && request.HttpMethod == "POST")
{
var writeStatus = new WriteStatusDelegate(WriteStatus);
string body;
labelStatus.Invoke(writeStatus, "Status: Lendo corpo da requisição");
using (var reader = new StreamReader(request.InputStream,
request.ContentEncoding))
{
body = reader.ReadToEnd();
}
labelStatus.Invoke(writeStatus, "Status: Lido corpo da requisição");
file = JsonConvert.DeserializeObject <CompressedFile>(body);
if (imageExtensions.Contains(Path.GetExtension(file.Name.ToUpperInvariant())))
{
var d = new PaintImageDelegate(PaintImage);
pictureBoxImage.Invoke(d);
}
labelStatus.Invoke(writeStatus, "Status: Ações completadas com sucesso");
buttonSalvar.Invoke(setEnabled, true);
}
var response = context.Response;
response.ContentLength64 = 0;
response.StatusCode = 200;
response.Close();
}
server.Stop();
});
serverThread.Start();
}
public void WriteStatus(string text)
{
if (InvokeRequired)
{
WriteStatusDelegate writeStatus = new WriteStatusDelegate(WriteStatus);
BeginInvoke(writeStatus, new object[] { text });
}
else
{
tsslStatus.Text = text;
}
}
private void PaintImage()
{
var writeStatus = new WriteStatusDelegate(WriteStatus);
labelStatus.Invoke(writeStatus, "Status: Descomprimindo imagens...");
var fileData = DecompressFile(file);
labelStatus.Invoke(writeStatus, "Status: Imagem descomprimida com sucesso");
using (var ms = new MemoryStream(fileData))
{
pictureBoxImage.Image = Image.FromStream(ms);
}
}
private async void buttonSalvar_Click(object sender, EventArgs e)
{
if (folderBrowserDialog.ShowDialog() == DialogResult.OK)
{
var writeStatus = new WriteStatusDelegate(WriteStatus);
labelStatus.Invoke(writeStatus, "Status: Descomprimindo arquivo...");
var fileData = await Task.Run(() => DecompressFile(file));
labelStatus.Invoke(writeStatus, "Status: Arquivo descomprimido com sucesso");
var path = @folderBrowserDialog.SelectedPath;
File.WriteAllBytes(@Path.Combine(path, file.Name), fileData);
labelStatus.Invoke(writeStatus, "Status: Arquivo salvo com sucesso");
}
}
private async void panelFile_DragDrop(object sender, DragEventArgs e)
{
string[] files = e.Data.GetData(DataFormats.FileDrop, false) as string[];
ICompressor compressor;
if (comboBoxAlgorithm.Text.Equals("Huffman"))
{
compressor = new HuffmanCoding();
}
else
{
compressor = new RunLengthEncodingCompressor();
}
var file = File.ReadAllBytes(@files.First());
try
{
pictureBox.Hide();
panelFile.BackgroundImage = Image.FromFile(@files.First());
}
catch
{
pictureBox.Show();
panelFile.BackgroundImage = null;
}
var stopWatch = new Stopwatch();
stopWatch.Start();
var task = Task.Run(() =>
{
return(compressor.Compress(file));
});
compressedFile = await Task.Run(() =>
{
var writeStatus = new WriteStatusDelegate(WriteStatus);
int i = 0;
while (!task.IsCompleted)
{
if (i == 500)
{
labelStatus.Invoke(writeStatus, $"Status: {compressor.Percentage.ToString("0.00")} % processado");
}
i = (i + 1) % 501;
}
labelStatus.Invoke(writeStatus, $"Status: 100 % processado");
var f = task.Result;
f.Name = Path.GetFileName(files.First());
return(f);
});
stopWatch.Stop();
var compressionPercentage = compressedFile.Data.Length * 100M / file.Length;
labelTempo.Text = stopWatch.Elapsed.ToString(@"hh\:mm\:ss\.ffff");
labelTamanho.Text = (compressedFile.Data.LongLength / 1024M).ToString("0.000") + " kb";
labelCompressionPercent.Text = $"{compressionPercentage.ToString("0.00")} %";
}
