public static async Task CopyFiles(FilecopyDialog dialog, Action <double> progressCallback)
{
long total_size = dialog.CopyModel.SourceDestination.Keys.Select(x => new FileInfo(x).Length).Sum();
long total_read = 0;
double progress_size = 10000.0;
foreach (var item in dialog.CopyModel.SourceDestination)
{
long total_read_for_file = 0;
var from = item.Key;
var to = item.Value;
dialog.CopyModel.CopyMessage = string.Format("Копируем из {0} в {1}", from, to);
using (var outStream = new FileStream(to, FileMode.Create, FileAccess.Write, FileShare.Read))
{
using (var inStream = new FileStream(from, FileMode.Open, FileAccess.Read, FileShare.Read))
{
await CopyStream(dialog, inStream, outStream, x =>
{
total_read_for_file = x;
progressCallback(((total_read + total_read_for_file) / (double)total_size) * progress_size);
});
}
}
total_read += total_read_for_file;
}
}
public static async void CopyMetod(FilecopyDialog dialog)
{
try
{
await Copier.CopyFiles(dialog, prog => dialog.CopyModel.ProgressValue = prog);
}
catch (OperationCanceledException)
{
foreach (var item in dialog.CopyModel.SourceDestination)
{
if (File.Exists(item.Value))
{
File.Delete(item.Value);
}
}
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
finally
{
dialog.Close();
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
List <DirectoryEntry> selectedItems = new List <DirectoryEntry>();
string path = string.Empty;
Dictionary <string, string> dict = new Dictionary <string, string>();
if (this.directories.ActivePanel == ActivePanel.Right)
{
var selection = this.RightView.SelectedItems;
foreach (var d in selection)
{
selectedItems.Add(d as DirectoryEntry);
}
path = this.LeftPath.Text;
}
else
{
var selection = this.LeftView.SelectedItems;
foreach (var d in selection)
{
selectedItems.Add(d as DirectoryEntry);
}
path = this.RightPath.Text;
}
if (selectedItems.Count > 0 && path != "..")
{
if (path.Last() != '\\')
{
path += '\\';
}
selectedItems.ForEach(_ => dict.Add(_.Fullpath, path + _.Name));
copyModel = new FileCopyViewModel(dict);
var copyDiag = new FilecopyDialog();
copyDiag.DataContext = copyModel;
copyDiag.ContinuePanel.Visibility = Visibility.Hidden;
copyDiag.CopyModel = copyModel;
copyDiag.Show();
}
else
{
MessageBox.Show("Не выбраны файлы для копирования или каталог в который будем копировать!");
}
}
public static async Task CopyStream(FilecopyDialog dialog, Stream from, Stream to, Action <long> progress)
{
int buffer_size = 10240;
byte[] buffer = new byte[buffer_size];
long total_read = 0;
while (total_read < from.Length)
{
await dialog.m_pauseTokeSource.Token.WaitWhilePausedAsync();
dialog.m_cancelationTokenSource.Token.ThrowIfCancellationRequested();
int read = await from.ReadAsync(buffer, 0, buffer_size);
await to.WriteAsync(buffer, 0, read);
total_read += read;
progress(total_read);
}
}
