protected override void BeginTask(object state)
{
ExtractionTask task = (ExtractionTask)state;
Exception exception = null;
try
{
if (!CancelRequested)
{
task.OnProgressStarted(this, new ProgressStartedEventArgs(task));
}
SevenZipExtractor extractor = new SevenZipExtractor(task.Archive);
extractor.Extracting += new EventHandler <SevenZip.ProgressEventArgs>(delegate(object sender, SevenZip.ProgressEventArgs e)
{
if (!CancelRequested)
{
task.OnProgressUpdate(this, new ProgressUpdateEventArgs(task, e.PercentDone, 100));
}
});
extractor.ExtractArchive(task.Destination);
}
catch (Exception e)
{
exception = e;
}
finally
{
if (!CancelRequested)
{
task.OnProgressCompleted(this, new ProgressCompletedEventArgs(exception, CancelRequested, task, 100, 100));
}
}
base.BeginTask(state);
}
private void UpdateExtractionStatus(ExtractionTask task, ListViewItem item, int current, int total, int completed, string status)
{
item.SubItems[0].Text = task.Archive;
item.SubItems[1].Text = "100";
item.SubItems[2].Text = string.Format("{0}", current);
item.SubItems[3].Text = string.Format("{0:00}%", completed);
item.SubItems[4].Text = status;
}
private void InitializeExtractionTask(DownloadTask state)
{
string filename = Path.GetFileName(state.Url);
string archive = state.Destination;
ListViewItem item = _downloadTable[state];
ExtractionTask task = new ExtractionTask(state.Destination, Path.GetDirectoryName(state.Destination));
task.ProgressUpdate += new EventHandler<ProgressUpdateEventArgs>(OnExtractionProgressUpdate);
task.ProgressCompleted += new EventHandler<ProgressCompletedEventArgs>(OnExtractionProgressCompleted);
Invoke((MethodInvoker)delegate()
{
UpdateExtractionStatus(task, item, 0, 100, 0, "Extraction Queued");
});
_extractionTable.Add(task, item);
_extractionManager.Queue(task);
if (!_extractionManager.HasBegun)
{
_extractionManager.Begin();
}
}
