/// <summary>
/// Initialize the progress indicator visual using the specified viewModel.
/// </summary>
/// <param name="viewModel">View model.</param>
public static void Initialize(ProgressIndicatorViewModel viewModel)
{
var owner = SingleInstanceApplication.Current.MainWindow;
var progressIndicator = new ProgressIndicator(viewModel, owner);
owner.SetValue(ProgressIndicatorVisualPropertyName, progressIndicator);
}
private ProgressIndicator(ProgressIndicatorViewModel viewModel, Gtk.Window owner)
: base(Gtk.WindowType.Toplevel)
{
#if ENABLE_OVERLAY
_overlay = new ProgressIndicatorOverlay(owner);
#endif // ENABLE_OVERLAY
_pulseTimer = new OSDispatcherTimer();
_pulseTimer.Interval = System.TimeSpan.FromMilliseconds(TimerTickMilliseconds);
_pulseTimer.Tick += Pulse;
DataContext = viewModel;
viewModel.PropertyChanged += HandlePropertyChanged;
this.Build();
this.DefaultHeight = -1;
_cancel.Label = ProgressIndicatorViewModel.Cancel;
}
/// <summary>
/// Creates a new instance of AsyncTaskWithProgress.
/// </summary>
/// <param name="taskName">The name of the task, which will be shown above the progress indicator.</param>
/// <param name="allowsCancel">If <c>true</c>, indicates that a 'Cancel' button should be available, allowing the user to cancel the operation.</param>
/// <param name="isIndeterminate">If <c>true</c>, indicates the task will not indicate a percentage done, but rather that the task is 'alive'.</param>
/// <param name="showsProgress">If <c>true</c>, indicates the task will show progress bar after appropriate time passes, otherwise no progress bar will be shown.</param>
/// <param name="progressDisplayDelay">How long to wait (in seconds) before showing the progress bar.</param>
public AsyncTaskWithProgress(string taskName, bool allowsCancel, bool isIndeterminate, bool showsProgress, double progressDisplayDelay)
{
_showsProgress = showsProgress;
if (_showsProgress)
{
_progressIndicator = ProgressIndicatorViewModel.ApplicationProgressIndicator;
if (_progressIndicator != null)
{
_progressIndicator.DisplayDelay = progressDisplayDelay;
_progressIndicator.Title = taskName;
_progressIndicator.IsIndeterminate = isIndeterminate;
_progressIndicator.AllowsCancel = allowsCancel;
_progressIndicator.UpdateText = string.Empty;
}
}
#if USE_ASYNC
_backgroundWorker = new BackgroundWorker() { WorkerReportsProgress = true, WorkerSupportsCancellation = allowsCancel };
_backgroundWorker.DoWork += AsyncTaskDoWork;
_backgroundWorker.ProgressChanged += AsyncTaskProgressChanged;
_backgroundWorker.RunWorkerCompleted += AsynTaskRunWorkerCompleted;
#endif // USE_ASYNC
}
