public MainWindowViewModel(bool loadDefaultPlaylist = true)
{
AppState = Locator.Current.GetService <AppState>();
PlaylistViewModel = new PlaylistViewModel().DisposeWith(Disposables);
if (loadDefaultPlaylist)
{
Observable.StartAsync(() => PlaylistViewModel.LoadDefaultAsync())
.Subscribe()
.DisposeWith(Disposables);
}
PlotSampleViewModel =
new PlotSampleViewModel(new PlotSampleProvider(PlaylistViewModel.FinalSample))
.DisposeWith(Disposables);
AudioPlayerViewModel =
new AudioPlayerViewModel(PlotSampleViewModel.SampleSignal)
.DisposeWith(Disposables);
}
private static PlotSampleViewModel CreatePlotSampleViewModel(GeneratorModeType generatorModeType)
{
PrepareAppState();
ISampleProvider signal = new BasicSignal();
if (generatorModeType == GeneratorModeType.Stereo)
{
signal = signal.ToStereo(1, 0.5f);
}
var plotSignal = new PlotSampleProvider(signal);
var plotVM = new PlotSampleViewModel(plotSignal);
plotVM.IsPlotEnable = true;
var count = Constants.Wave.DefaultSampleRate / 8 * signal.WaveFormat.Channels;
float[] buffer = Array.Empty <float>();
buffer = BufferHelpers.Ensure(buffer, count);
plotVM.SampleSignal.Read(buffer, 0, count);
return(plotVM);
}
