public void AddNoteAtCursor()
{
Note newNote = new Note {
Time = sequencer.CursorPosition
};
sequencer.ActionManager.RecordAdd(sequencer.GetModel().Notes, newNote);
}
private void OnCursorPositionChanged()
{
if (!IsEnabled)
{
return;
}
float now = sequencer.CursorPosition;
List <Block> blockCandidates = ((IEnumerable <Block>)sequencer.GetModel().Blocks)
.Where(b => b.IsTimeInOccupiedRange(now))
.ToList();
foreach (var vm in VisualizedTracks)
{
Block activeBlock = blockCandidates
.Where(b => b.Tracks.Contains(vm.track))
.LastOrDefault();
if (activeBlock == null)
{
vm.CurrentColor = Colors.Black;
}
else
{
vm.CurrentColor = activeBlock.GetColorAtTime(now, vm.track).ToViewColor();
}
}
}
public NotesViewModel(SequencerViewModel sequencer)
{
this.sequencer = sequencer;
Notes = sequencer.GetModel().Notes.Select(note => new NoteViewModel(sequencer, note));
NotesSorted = Notes.OrderBy(note => note.TimeSeconds);
ForwardCollectionEvents(Notes, nameof(HasNotes));
}
public VisualizationViewModel(SequencerViewModel sequencer)
{
this.sequencer = sequencer;
VisualizedTracks = sequencer.GetModel().Tracks.Select(t => new VisualizedTrackViewModel(t));
ForwardPropertyEvents(nameof(sequencer.CursorPosition), sequencer, OnCursorPositionChanged, true);
ForwardPropertyEvents(nameof(IsEnabled), this, OnIsEnabledChanged);
}
public MusicSegmentViewModel(SequencerViewModel sequencer, Model.MusicSegment model)
{
this.sequencer = sequencer;
this.model = model;
ReferringBlocksDummies = sequencer.GetModel().Blocks.Where(b => b.SegmentContext == model).Select(b => (object)null);
ForwardPropertyEvents(nameof(model.Label), model, nameof(Label));
ForwardPropertyEvents(nameof(model.Bpm), model, nameof(Bpm));
ForwardPropertyEvents(nameof(model.BeatsPerBar), model, nameof(BeatsPerBar));
ForwardPropertyEvents(nameof(model.TimeOrigin), model, nameof(TimeOrigin), nameof(TimeOriginSeconds));
ForwardPropertyEvents(nameof(model.IsReadOnly), model, nameof(IsReadOnly));
ForwardPropertyEvents(nameof(model.IsDefault), model, nameof(IsDefault));
ForwardPropertyEvents(nameof(Bpm), this, () => sequencer.NotifyGridInterval());
}
public PlaybackViewModel(SequencerViewModel sequencer)
{
this.sequencer = sequencer;
this.timelineModel = sequencer.GetModel();
cursorUpdateTimer = new System.Windows.Threading.DispatcherTimer()
{
Interval = CURSOR_UPDATE_INTERVAL
};
cursorUpdateTimer.Tick += (_, __) => UpdateCursorPosition();
ForwardPropertyEvents(nameof(MusicVolume), this, () => audioPlayback.Volume = LoudnessHelper.LoudnessFromVolume(MusicVolume));
ForwardPropertyEvents(nameof(sequencer.CurrentViewLeftPositionTime), sequencer, InvalidateWaveform);
// Note: Because CurrentViewLeftPositionTime depends on TimePixelScale and is always changed together with the right position,
// it is enough to only depend on this one to reduce callback duplication.
//ForwardPropertyEvents(nameof(sequencer.TimePixelScale), sequencer, InvalidateWaveform);
//ForwardPropertyEvents(nameof(sequencer.CurrentViewRightPositionTime), sequencer, InvalidateWaveform);
ForwardPropertyEvents(nameof(sequencer.CursorPosition), sequencer, OnCursorPositionChanged);
audioPlayback.PlaybackStopped += OnPlaybackStopped;
audioPlayback.Init(EmptySampleProvider.Singleton);
}
