/// <summary>
/// Post Progress message for display at next timer tick
/// </summary>
/// <param name="caption"></param>
/// <param name="title"></param>
/// <param name="allowCancel"></param>
/// <param name="cancellingMessage"></param>
public static void Show(
string caption,
string title,
bool allowCancel,
string cancellingMessage)
{
VerifyFormExistence();
PendingCaption = caption;
PendingTitle = title;
PendingAllowCancel = allowCancel;
PendingCancellingMessage = cancellingMessage;
PendingShow = true;
PendingHide = false;
//if (Instance != null) Instance.ProgressTimer.Enabled = true;
PerShowCancelRequestedFlag = false;
if (Debug)
{
ClientLog.Message("Progress - Posting Show: " + caption);
}
//if (Lex.Contains(caption, "Retrieving data")) caption = caption; // debug
if (SS.I.LocalServiceMode) // if local service mode try to show message now since timer ticks may not be processed if in CPU intensive task
{
//while (PendingShow)
{
Thread.Sleep(10);
UIMisc.DoEvents();
string stackTrace = new System.Diagnostics.StackTrace(true).ToString();
if (Lex.Contains(stackTrace, "_tick")) // if in a timer tick process immediately
{
Instance.ProgressTimer_Tick(null, null);
}
}
}
return;
}
/// <summary>
/// When timer ticks perform any pending operations
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ProgressTimer_Tick(object sender, System.EventArgs e)
{
//SystemUtil.Beep(); // debug
lock (InstanceLock)
{
try
{
if (PendingShow) // show new progress information
{
//if (Lex.Contains(PendingCaption, "retrieving")) PendingCaption = PendingCaption; // debug
if (Debug)
{
ClientLog.Message("Progress - Show: " + PendingCaption);
}
ShowInstance(PendingCaption, PendingTitle, PendingAllowCancel, PendingCancellingMessage);
PendingCaption = PendingTitle = PendingCancellingMessage = "";
PendingShow = PendingAllowCancel = false;
}
else if (PendingHide) // hide the progress form
{
if (Debug)
{
ClientLog.Message("Progress - Hide");
}
HideInstance();
Size = OriginalFormSize; // restore size to original
PendingHide = false;
if (!PendingShow)
{
Owner = null;
Parent = null;
Location = new Point(-4096, -4096); // move off screen
Discarded = true;
Instance = null; // if no new show pending then don't use this instance again
ProgressTimer.Enabled = false;
//SessionManager.ActivateShell(); // really needed, this can hide a popup window that has just been shown
if (Debug)
{
ClientLog.Message("Progress - Discarding instance: " + Id + ", Caption: " + Caption.Text);
}
}
return;
}
if (!Visible)
{
return;
}
//if (ProgressBar.Value >= ProgressBar.Maximum)
// ProgressBar.Value = ProgressBar.Minimum;
//else ProgressBar.Value++;
if (Caption.Text.Contains(".:..")) // continue with timer?
{
Caption.Text = Caption.Text.Replace(".:..", LastTimeText);
}
if (!String.IsNullOrEmpty(LastTimeText) && Caption.Text.Contains(LastTimeText))
{ // update time display
TimeSpan ts = DateTime.Now.Subtract(StartTime);
string timeText = String.Format("{0}:{1,2:00}", ts.Minutes, ts.Seconds);
if (timeText != LastTimeText)
{
Caption.Text = Caption.Text.Replace(LastTimeText, timeText);
LastTimeText = timeText;
UIMisc.DoEvents();
}
}
else if (Caption.Text.Contains("0:00"))
{ // start new time display
StartTime = DateTime.Now;
LastTimeText = "0:00";
}
else
{
LastTimeText = "";
}
}
catch (Exception ex)
{ ClientLog.Message("ProgressTimer_Tick exception: " + DebugLog.FormatExceptionMessage(ex)); }
}
}