public PlayViewModel()
{
////if (IsInDesignMode)
////{
//// // Code runs in Blend --> create design time data.
////}
////else
////{
//// // Code runs "for real"
////}
PropertyChanged += (sender, e) =>
{
if (String.Equals(e.PropertyName, BPMPropertyName))
{
ThreadPool.QueueUserWorkItem(new WaitCallback(o =>
{
List<AnalyzedSong> songs;
using (BeatMachineDataContext context = new BeatMachineDataContext(
BeatMachineDataContext.DBConnectionString))
{
DataLoadOptions dlo = new DataLoadOptions();
dlo.LoadWith<AnalyzedSong>(p => p.AudioSummary);
context.LoadOptions = dlo;
context.ObjectTrackingEnabled = false;
songs = context.AnalyzedSongs
.Where(s => s.AudioSummary != null &&
Math.Abs((int)s.AudioSummary.Tempo - BPM) >= BPMTolerance)
.Shuffle()
.ToList();
}
// Need to look up the actual MediaLibrary instances corresponding
// to the songs we have in the database
List<Song> mediaLibrarySongs = songs
.Select<AnalyzedSong, Song>(song => song.ToMediaLibrarySong())
.Where(song => song != null)
.ToList();
Messenger.Default.Send<NotificationMessage<List<Song>>>(
new NotificationMessage<List<Song>>(mediaLibrarySongs, null));
}));
}
};
Messenger.Default.Register<PropertyChangedMessage<bool>>(this,
m =>
{
if (String.Equals(m.PropertyName, SongsAnalyzedPropertyName) &&
m.NewValue)
{
SongsAnalyzed = true;
}
});
Messenger.Default.Register<NotificationMessage<List<Song>>>(
this,
m => {
BetterMediaPlayer p = new BetterMediaPlayer(m.Content);
DispatcherHelper.InvokeAsync(() => Player = p);
});
PlayCommand = new RelayCommand(
() => {
if (Player.State == MediaState.Paused)
{
Player.Resume();
}
else if (Player.State == MediaState.Playing)
{
Player.Pause();
}
else
{
Player.Play();
}
},
() => true);
// TODO Remember user setting
BPM = 120;
}
private void LoadSongs(bool continuePlay)
{
ThreadPool.QueueUserWorkItem(new WaitCallback(o =>
{
Group<AnalyzedSong> match = null;
if (songs != null)
{
match = songs
.Where(g => BPM - g.Key > 0 && BPM - g.Key < 10)
.FirstOrDefault();
}
if(match == null)
{
DispatcherHelper.CheckBeginInvokeOnUI(() =>
{
HaveSongs = false;
});
} else {
// Need to look up the actual MediaLibrary instances corresponding
// to the songs we have in the database
List<Song> mediaLibrarySongs = match.Items
.Select<AnalyzedSong, Song>(song => song.MediaLibrarySong)
.ToList();
BetterMediaPlayer p = new BetterMediaPlayer(mediaLibrarySongs);
p.PropertyChanged += Player_PropertyChanged;
DispatcherHelper.CheckBeginInvokeOnUI(() => {
if(Player != null)
{
Player.UnregisterEvents();
}
Player = p;
HaveSongs = true;
if (continuePlay)
{
Player.Play();
}
});
}
}));
}
