Building FM Radio with RDS Support

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using USBFM;
using System.Windows.Threading;
using System.ComponentModel;

namespace RadioPlayer {
   /// <summary>
   /// Interaction logic for Window1.xaml
   /// </summary>
   public partial class Window1 : Window {
      public Window1() {
         InitializeComponent();
      }

      #region methods
      private void Window_Loaded(object sender, RoutedEventArgs e) {
         try {
            _device = USBRadioDevice.FindDevice(RadioPlayer.Properties.Settings.Default.PID, RadioPlayer.Properties.Settings.Default.VID);

            _device.PropertyChanged += (s, ed) => {
               if (ed.PropertyName == "RDS" && _device.RDS != null) { 
                  //set bindings
                  this.Dispatch(() => {
                     Presets.SetBinding(ListBox.ItemsSourceProperty, _device, "Presets");
                     Freq.SetBinding(TextBlock.TextProperty, _device, "CurrentFrequency", new ValueConverter<double, double>(d => { return d == 0 ? _device.CurrentStation : d; }));
                     PS.SetBinding(TextBlock.TextProperty, _device.RDS, "PS");
                     PTY.SetBinding(TextBlock.TextProperty, _device.RDS, "PTYString");
                     MonoStereo.SetBinding(Path.DataProperty, _device.RDS, "IsStereo", new ValueConverter<bool, Geometry>(b => { return (Geometry)(b ? this.Resources["StereoGeometry"] : this.Resources["MonoGeometry"]); }));
                     SignalTransform.SetBinding(ScaleTransform.ScaleYProperty, _device.RDS,"SignalStrength", new ValueConverter<byte, double>(b => { return 1-(b / 36d); }));
                     MS.SetBinding(TextBlock.IsEnabledProperty, _device.RDS, "HasMS");
                     TA.SetBinding(TextBlock.IsEnabledProperty, _device.RDS, "HasTA");
                     TP.SetBinding(TextBlock.IsEnabledProperty, _device.RDS, "HasTP");
                  });
               }
            };
            _device.InitAudio();
            _device.InitRDSReports();
            
            //we're intercepting properties changes
            Volume.AddValueChanged(RotaryControl.RotaryControl.AngleProperty, (s, ex) => {
               DirectSoundMethods.Volume = (int)Volume.Angle.ToRange(Volume.CounterClockwiseMostAngle, Volume.ClockwiseMostAngle, -4000, 0);
            });

            Tune.AddValueChanged(RotaryControl.RotaryControl.AngleProperty, (s, ex) => {
               _device.Tune(Tune.Angle > _prevTune);
               _prevTune = Tune.Angle;
            });
            
         } catch (ApplicationException ex) { MessageBox.Show(ex.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error); }
      }

      private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e) {
         _device.StopRDSReports();
         _device.StopAudio();
      }

      private void Window_Unloaded(object sender, RoutedEventArgs e) {
         _device.Close();
         _device.Dispose();
         _device = null;
      }

      private void Window_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e) {
         if (e.Source.GetType().IsSubclassOf(typeof(Window)) || e.Source.GetType().Equals(typeof(TextBlock))) DragMove();
      }

      private void Button_MouseLeftButtonDown(object sender, MouseButtonEventArgs e) {
         var button = sender as ContentPresenter;
         if (button != null) {
            var frq = double.Parse(button.Content.ToString());
            _device.Tune(frq);
         }
      }

      #endregion

      #region properties
      private USBRadioDevice _device;
      private double _prevTune;
      #endregion
   }
}