/// <summary>
/// Can be called from any thread
/// </summary>
private void UpdateBusyDisplay()
{
// If operation is taking too long and the busy window isn't showing, show it
if (busyForm == null)
{
if (immediateBusyForm || workTimer.ElapsedMilliseconds > Program.Config.BusyWindowDelay)
{
MainForm.Invoke((SimpleDelegate) delegate() {
busyForm = new frmBusy();
busyForm.StartPosition = System.Windows.Forms.FormStartPosition.Manual;
busyForm.Left = MainForm.Left + MainForm.Width / 2 - busyForm.Width / 2;
busyForm.Top = MainForm.Top + MainForm.Height / 2 - busyForm.Height / 2;
busyForm.FormClosed += new System.Windows.Forms.FormClosedEventHandler(busyForm_FormClosed);
});
MainForm.BeginInvoke((SimpleDelegate) delegate() {
if (Working)
{
busyForm.ShowDialog(MainForm);
}
else
{
busyForm.Dispose();
busyForm = null;
}
});
}
}
}
/// <summary>
/// To be called from UI thread only
/// </summary>
private void CloseBusyDisplay()
{
if (busyForm != null && !busyForm.IsDisposed)
{
busyForm.Close();
busyForm.Dispose();
}
busyForm = null;
}