protected override void CustomUpdateMonitorReading(object sender, Ubicomp.Utils.NET.CAF.ContextAdapter.NotifyContextMonitorListenersEventArgs e)
{
if (e.Type != typeof(Bitmap))
return;
if (Device.State == StackingState.StackedOnTop)
return;
if (isProcessStopped)
return;
if (sender is SimCameraMonitor)
{
List<Glyph> detectedGlyphs = new List<Glyph>();
var simulatorDevice = ((sender as SimCameraMonitor).CameraSource as SimulatorDevice).CalculatorGlyph;
if (simulatorDevice == true)
detectedGlyphs.Add(Glyph.Square);
NotifyContextServiceListeners(this, new NotifyContextServiceListenersEventArgs(typeof(GlyphDetectionService), detectedGlyphs));
}
else if (sender is CameraMonitor)
{
if (Tracker == null)
Tracker = (sender as CameraMonitor).Tracker;
if (Tracker == null)
return;
List<Glyph> detectedGlyphs = new List<Glyph>();
ManagedA.Glyphs result = Tracker.DetectFigures(20, 80, 150);
for(int i = 0 ; i < result.numberSquares ; i++)
detectedGlyphs.Add(Glyph.Square);
for (int i = 0; i < result.numberTriangles; i++)
detectedGlyphs.Add(Glyph.Triangle);
NotifyContextServiceListeners(this, new NotifyContextServiceListenersEventArgs(typeof(GlyphDetectionService), detectedGlyphs));
}
}
void Registration_OnNotifyContextServiceListeners(object sender, Ubicomp.Utils.NET.CAF.ContextService.NotifyContextServiceListenersEventArgs e)
{
Dispatcher.Invoke(DispatcherPriority.Render,
(Action)delegate()
{
lock (captureLock)
{
UofM.HCI.tPad.Services.RegistrationService registration = sender as UofM.HCI.tPad.Services.RegistrationService;
capture = (Bitmap)registration.Tracker.GetCameraImg(true).Clone();
// create a barcode reader instance
IBarcodeReader reader = new BarcodeReader();
// detect and decode the barcode inside the bitmap
var result = reader.Decode(capture);
// do something with the result
if (result != null)
{
FoundCode = true;
CodeType = result.BarcodeFormat.ToString();
CodeContent = result.Text;
float ratioX = (float)ActualWidth / capture.Width;
float ratioY = (float)ActualHeight / capture.Height;
TranslateX = (int)(result.ResultPoints.Average(point => point.X) * ratioX) - (int)(ActualWidth / 2);
TranslateY = (int)(result.ResultPoints.Average(point => point.Y) * ratioY) - (int)(ActualHeight / 2);
lastTimeSeem = DateTime.Now;
if (cbAuto.IsChecked == true)
bLaunch_Click(null, null);
}
else
{
var elapsed = DateTime.Now - lastTimeSeem;
if (elapsed.TotalMilliseconds >= 3000)
FoundCode = false;
}
GC.Collect(0, GCCollectionMode.Forced);
}
});
}
