public ProgressCounter(Thread workerThread, int maximumValue, int initialValue = 0, int incrementBy = 1)
{
_workerThread = workerThread;
_childProgressChangedHandler = new ProgressChangedHandler(_childCounter_ProgressChanged);
_childStatusChangedHandler = new StatusChangedHandler(_childCounter_StatusChanged);
_value = initialValue;
_incrementBy = incrementBy;
_maximum = maximumValue;
ProgressCounter parentCounter = Top;
if (parentCounter == null)
{
// Set top level counter
Top = this;
}
else
{
// Add to stack
while (parentCounter._childCounter != null)
{
parentCounter = parentCounter._childCounter;
}
if (parentCounter != null)
{
parentCounter.AddChild(this);
}
}
}
public void RemoveChild()
{
if (_childCounter != null)
{
_childCounter._parentCounter = null;
_childCounter.ProgressChanged -= _childProgressChangedHandler;
_childCounter.StatusChanged -= _childStatusChangedHandler;
_childCounter = null;
ProcessStatusChanged();
}
}
public void AddChild(ProgressCounter child)
{
if (_childCounter == child)
{
return;
}
RemoveChild();
_childCounter = child;
_childCounter.ProgressChanged += _childProgressChangedHandler;
_childCounter.StatusChanged += _childStatusChangedHandler;
_childCounter._parentCounter = this;
}
public void ShowDialog(System.Windows.Forms.Control owner, string text, string caption, Utils.ProgressDialog.Animations animation = ProgressDialog.Animations.None)
{
Exception workerException = null;
var workerThread = new System.Threading.Thread(() =>
{
try
{
WorkerAction.Invoke();
}
catch (Exception e)
{
workerException = e;
}
});
workerThread.Name = "ProgressCounterDialog worker";
var dialogUpdateEvent = new AutoResetEvent(false);
var dialogCloseEvent = new ManualResetEvent(false);
using (var workerProgress = new ProgressCounter(workerThread, 1))
{
workerProgress.StatusChanged += (List <string> status) =>
{
dialogUpdateEvent.Set();
};
workerProgress.ProgressChanged += (double percent) =>
{
dialogUpdateEvent.Set();
};
workerThread.Start();
var dialog = new Utils.ProgressDialog();
dialog.Title = caption;
dialog.Line1 = text;
dialog.Line2 = workerProgress.Status;
dialog.Animation = animation;
dialog.CancelMessage = "Please wait while the operation is cancelled";
dialog.Maximum = 100;
dialog.Value = (uint)(workerProgress.GetProgress() * dialog.Maximum);
dialog.Modal = true;
dialog.NoTime = true;
IntPtr handle = IntPtr.Zero;
if (owner != null)
{
if (owner.InvokeRequired)
{
owner.Invoke(new Action(delegate { handle = owner.Handle; }));
}
else
{
handle = owner.Handle;
}
}
dialog.ShowDialog(handle);
while (workerThread.IsAlive)
{
if (dialog.HasUserCancelled)
{
workerProgress.Abort();
Cancelled = true;
break;
}
int waitResult = WaitHandle.WaitAny(new WaitHandle[] { dialogUpdateEvent, dialogCloseEvent }, 50);
if (waitResult == WaitHandle.WaitTimeout)
{
continue;
}
if (waitResult == 1) // dialogCloseEvent
{
break;
}
var statusList = workerProgress.GetStatusList();
if (statusList.Count >= 1)
{
dialog.Line2 = statusList[0];
if (statusList.Count >= 2)
{
dialog.Line3 = statusList[1];
}
else
{
dialog.Line3 = "";
}
}
else
{
dialog.Line2 = "";
}
dialog.Value = (uint)(workerProgress.GetProgress() * dialog.Maximum);
}
dialog.CloseDialog();
dialog = null;
if (workerException != null)
{
throw new Exception(workerException.Message, workerException);
}
if (owner != null)
{
owner.Invoke(new Action(delegate
{
var form = owner as System.Windows.Forms.Form;
if (form != null)
{
form.Activate();
}
else
{
owner.Focus();
}
}));
}
}
}
