/// <summary>
/// Stop all execution.
/// </summary>
public void StopAllExecution()
{
Notify(this, new StopAllExecution());
TimerMessageForm theTimerMessageForm = new TimerMessageForm();
theTimerMessageForm.ShowDialogSpecifiedTime("Stopping execution...", 3000);
}
/// <summary>
/// This method will be called is this project form is closed or when
/// the main form is closed.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ProjectForm2_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
bool theMainFormIsClosing = true;
// We don't know if calling of this method this is a consequence of closing this project form or
// as a consequence of closing the main form.
// The following code is needed to find this out (see the Form class Closing event in MSDN)
if (((MainForm)ParentForm)._IsClosing)
{
// Closing is done through the Exit menu item.
theMainFormIsClosing = true;
}
else
{
// The position of the cursor in screen coordinates.
Point theCursorPosition = Cursor.Position;
if ((ParentForm.Top + SystemInformation.CaptionHeight) < theCursorPosition.Y)
{
theMainFormIsClosing = false;
}
else
{
theMainFormIsClosing = true;
}
}
// Close if allowed.
if (theMainFormIsClosing)
{
// Don't do anything.
// The Main form will also receive a closing event and handle the closing of the application.
}
else
{
e.Cancel = false;
MainForm theMainForm = (MainForm)ParentForm;
DialogResult theDialogResult;
if (IsExecuting())
{
// Ask the user if execution needs to be stopped.
theDialogResult = MessageBox.Show("Executing is still going on.\nStop execution?", "Warning", MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation);
if (theDialogResult == DialogResult.Yes)
{
// Stop the execution.
Notify(new StopExecution(this));
// Because execution is performed in a different thread, wait some
// time to enable the execution to stop. Also give feedback to the user
// of this waiting by showing a form stating this.
TimerMessageForm theTimerMessageForm = new TimerMessageForm();
theTimerMessageForm.ShowDialogSpecifiedTime("Stopping execution...", 3000);
// Find out if execution really has stopped.
if (IsExecuting())
{
theDialogResult = MessageBox.Show("Failed to stop execution.\n This form will not be closed.", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
e.Cancel = true;
}
}
else
{
e.Cancel = true;
}
}
if (ParentForm.MdiChildren.Length == 1)
{
// This is the last project form that is being closed,
// so the project needs to be closed.
if (!e.Cancel)
{
// e.Cancel is false, so no execution takes place any more.
// Close the project.
// If unsaved changes exist, give the user the possibility to save them.
if (projectApp.AreProjectOrSessionsChanged())
{
_MainForm.Save(true);
}
if (projectApp.HasUserCancelledLastOperation())
{
// The user has cancelled the close operation.
// Cancel the closing of this last project form.
e.Cancel = true;
}
else
{
// The user has not cancelled the close operation.
projectApp.Close(true);
projectApp = null;
Notify(new ProjectClosed());
}
}
}
}
}
