public static DialogResult ShowModal(String title, String message, bool animated,
ReadyDelegate notifyReady, CancelDelegate deleg)
{
using (HUDForm instance = new HUDForm())
{
// Don't use lock() here as we might dead lock otherwise.
if (!Monitor.TryEnter(instanceLock))
{
Application.DoEvents(); // See if we can let the application finish pending stuff first.
if (!Monitor.TryEnter(instanceLock))
{
return(DialogResult.Abort); // Still no lock possible? In this case we can only leave without showing the HUD form.
}
}
currentInstance = instance;
Monitor.Exit(instanceLock);
instance.label1.Text = title;
instance.label2.Text = message;
instance.cancelDelegate = deleg;
// Can happen the form is cancelled already while we are still doing the setup
// (separate thread).
if (instance.IsDisposed || instance.Disposing)
{
if (Monitor.TryEnter(instanceLock))
{
currentInstance = null;
Monitor.Exit(instanceLock);
}
return(DialogResult.Abort);
}
instance.Reshow(animated, true);
// Need to set Visible back to false to avoid an exception in ShowDialog about an already
// visible window. Doesn't usually have a visual effect.
instance.Visible = false;
if (notifyReady != null)
{
notifyReady();
}
DialogResult result = DialogResult.Abort;
if (!instance.IsDisposed && !instance.Disposing)
{
result = instance.ShowDialog();
}
if (Monitor.TryEnter(instanceLock))
{
instance.Dispose();
currentInstance = null;
Monitor.Exit(instanceLock);
}
return(result);
}
}
/// <summary>
/// Hide the HUD and return OK as dialog result.
/// Always called in the context of the main thread with active lock.
/// </summary>
protected void DoFinish()
{
if (IsHandleCreated)
{
Hide();
}
this.DialogResult = DialogResult.Abort;
Dispose();
currentInstance = null;
}
public static void Show(String title, String message, bool animated)
{
lock (instanceLock) // Hard lock here. Must never happen.
{
HUDForm instance = new HUDForm();
currentInstance = instance;
instance.label1.Text = title;
instance.label2.Text = message;
instance.Reshow(animated, false);
}
}
/// <summary>
/// Hide the HUD and return OK as dialog result.
/// Always called in the context of the main thread with active lock.
/// </summary>
protected void DoFinish()
{
if (IsHandleCreated)
Hide();
this.DialogResult = DialogResult.Abort;
Dispose();
currentInstance = null;
}
public static DialogResult ShowModal(String title, String message, bool animated,
ReadyDelegate notifyReady, CancelDelegate deleg)
{
using (HUDForm instance = new HUDForm())
{
// Don't use lock() here as we might dead lock otherwise.
if (!Monitor.TryEnter(instanceLock))
{
Application.DoEvents(); // See if we can let the application finish pending stuff first.
if (!Monitor.TryEnter(instanceLock))
return DialogResult.Abort; // Still no lock possible? In this case we can only leave without showing the HUD form.
}
currentInstance = instance;
Monitor.Exit(instanceLock);
instance.label1.Text = title;
instance.label2.Text = message;
instance.cancelDelegate = deleg;
// Can happen the form is cancelled already while we are still doing the setup
// (separate thread).
if (instance.IsDisposed || instance.Disposing)
{
if (Monitor.TryEnter(instanceLock))
{
currentInstance = null;
Monitor.Exit(instanceLock);
}
return DialogResult.Abort;
}
instance.Reshow(animated, true);
// Need to set Visible back to false to avoid an exception in ShowDialog about an already
// visible window. Doesn't usually have a visual effect.
instance.Visible = false;
if (notifyReady != null)
notifyReady();
DialogResult result = DialogResult.Abort;
if (!instance.IsDisposed && !instance.Disposing)
result = instance.ShowDialog();
if (Monitor.TryEnter(instanceLock))
{
instance.Dispose();
currentInstance = null;
Monitor.Exit(instanceLock);
}
return result;
}
}
public static void Show(String title, String message, bool animated)
{
lock (instanceLock) // Hard lock here. Must never happen.
{
HUDForm instance = new HUDForm();
currentInstance = instance;
instance.label1.Text = title;
instance.label2.Text = message;
instance.Reshow(animated, false);
}
}