//public delegate void Populate();
public MainWindow()
{
InitializeComponent();
// Set up event handler to wait for a usb device to connect to
deviceNotifier = DeviceNotifier.OpenDeviceNotifier();
deviceNotifier.OnDeviceNotify += new EventHandler<DeviceNotifyEventArgs>(deviceNotifier_OnDeviceNotify);
// try to connect to device (if device was connected previously). Show status in status bar
try
{
traqpaq = new TraqpaqDevice();
// update status bar
statusBarItemTraqpaq.Content = "Device connected: " + traqpaq.reqSerialNumber();
}
catch (TraqPaqNotConnectedException)
{
// Device not found
traqpaq = null;
// update status bar
statusBarItemTraqpaq.Content = "Device not found";
}
// Create the pages
homePage = new HomePage(this);
settingsPage = new SettingsPage(this);
uploadPage = new UploadPage(this);
// assign the pages to the respective tabs
frameUpload.Navigate(uploadPage);
frameSettings.Navigate(settingsPage);
// Go to the welcome page
frameHome.Navigate(homePage);
// create the log book page
logBookPage = new LogBookPage(this);
frameLogBook.Navigate(logBookPage);
if (traqpaq != null)
{
logBookPage.populateTracks();
}
// configure the background worker
//bw.DoWork += bw_DoWork;
//bw.WorkerReportsProgress = false;
// attempt with backgroundworker if connected
//if (traqpaq != null)
//{
// logBookPage.populateTracks();
// //bw.RunWorkerAsync();
//}
//// create the log book page as a background task
//Thread threadCreateRecordPage = new System.Threading.Thread(
// new ThreadStart(
// delegate()
// {
// System.Windows.Threading.DispatcherOperation dispatcherOp = frameLogBook.Dispatcher.BeginInvoke(
// System.Windows.Threading.DispatcherPriority.Normal,
// new Action(delegate()
// {
// logBookPage.populateTracks();
// }));
// }));
//threadCreateRecordPage.SetApartmentState(ApartmentState.STA);
//threadCreateRecordPage.Start();
//Action createRecordPage = delegate()
//{
// logBookPage.populateTracks();
//};
//Task taskLogPage = Task.Factory.StartNew(createRecordPage);
}
//void bw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
//{
// MessageBox.Show("Complete");
//}
//void bw_DoWork(object sender, DoWorkEventArgs e)
//{
// Populate handler = logBookPage.populateTracks;
// logBookPage.Dispatcher.BeginInvoke(handler);
//}
/// <summary>
/// Called whenever a usb device is plugged in or unplugged
/// </summary>
void deviceNotifier_OnDeviceNotify(object sender, DeviceNotifyEventArgs e)
{
// Detected a device, try to see if it is the traqpaq
if (e.Device.IdProduct == Constants.PID && e.Device.IdVendor == Constants.VID)
{
if (e.EventType == EventType.DeviceArrival) // check for device arrival
{
if (traqpaq == null)
{
// try to connect again
try
{
traqpaq = new TraqpaqDevice();
statusBarItemTraqpaq.Content = "Device connected: " + traqpaq.reqSerialNumber();
// populate tracks
//TODO fix populate tracks
logBookPage.populateTracks();
}
catch (TraqPaqNotConnectedException) { return; } // Silently fail and exit method
//BackgroundWorker bw = new BackgroundWorker();
//bw.DoWork += bw_DoWork;
//bw.RunWorkerAsync();
}
}
else // device removal
{
traqpaq.disconnectDevice();
traqpaq = null;
// update status bar
statusBarItemTraqpaq.Content = "Traqpaq disconnected";
}
}
}