public ImageViewer(StartViewerApplicationRequest startRequest)
{
InitializeComponent();
ViewModel = new ImageViewerViewModel
{
IsLoading = true
};
DataContext = ViewModel;
if (ApplicationContext.Current != null)
{
ApplicationContext.Initialize();
if (ApplicationContext.Current == null)
{
throw new Exception();
}
}
EventMediator = new ServerEventMediator();
EventMediator.Initialize(ApplicationContext.Current.Parameters);
EventMediator.CriticalError += ErrorHandler_OnCriticalError;
EventMediator.RegisterEventHandler(typeof(ApplicationStartedEvent), ApplicationStarted);
EventMediator.RegisterEventHandler(typeof(SessionUpdatedEvent), OnSessionUpdated);
EventMediator.RegisterEventHandler(typeof(MessageBoxShownEvent), OnMessageBox);
EventMediator.ServerApplicationStopped += OnServerApplicationStopped;
_studyView = new StudyView(EventMediator);
StudyViewContainer.Children.Add(_studyView);
MouseHelper.SetBackgroundElement(LayoutRoot);
if (startRequest == null)
{
//TODO: replace this with the custom dialog. For some reason, it doesn't work here.
System.Windows.MessageBox.Show(ErrorMessages.MissingParameters);
}
else
{
ToolstripViewComponent.EventDispatcher = EventMediator;
LayoutRoot.MouseLeftButtonDown += ToolstripViewComponent.OnLoseFocus;
LayoutRoot.MouseRightButtonDown += ToolstripViewComponent.OnLoseFocus;
EventMediator.StartApplication(startRequest);
TileView.ApplicationRootVisual = _studyView.StudyViewCanvas;
LayoutRoot.KeyUp += OnKeyUp;
}
}
public void Shutdown()
{
if (!_shuttingDown)
{
_shuttingDown = true;
EventMediator.StopApplication();
Visibility = Visibility.Collapsed;
if (_studyView != null)
{
StudyViewContainer.Children.Clear();
MouseHelper.SetBackgroundElement(null);
_studyView.Dispose();
_studyView = null;
}
}
}
public virtual void Dispose(bool disposing)
{
if (!_disposed)
{
Shutdown();
// Must do this beofre we work with the EventMediator
ToolstripViewComponent.Dispose();
if (_studyView != null)
{
StudyViewContainer.Children.Clear();
if (disposing)
{
_studyView.Dispose();
}
_studyView = null;
}
if (EventMediator != null)
{
if (_serverApplication != null)
{
EventMediator.UnregisterEventHandler(typeof(ApplicationStartedEvent), ApplicationStarted);
EventMediator.UnregisterEventHandler(_serverApplication.Viewer.Identifier);
EventMediator.ServerApplicationStopped -= OnServerApplicationStopped;
_serverApplication = null;
}
EventMediator.Dispose();
EventMediator = null;
}
_disposed = true;
}
}