private void HandleNoteSelectionChanged(object sender, PropertyChangedEventArgs e)
{
ItemExtender <IScaleNote, bool> source = sender as ItemExtender <IScaleNote, bool>;
if (source == null)
{
return;
}
// TODO remove this debug code once I get the velocity initialized correctly
if (double.IsNaN(Velocity))
{
Dispatcher.Invoke(DispatcherPriority.Send, new Action(() => Velocity = 0.8f));
}
if (source.Value == true)
{
_midiLink.InjectNoteOn(source.Item.MidiNoteNumber, (int)(Velocity * 127));
_notes.Where(item => !Equals(sender, item)).Execute(item => item.Value = false);
}
else
{
_midiLink.InjectNoteOff(source.Item.MidiNoteNumber, 0);
}
}
public override DataTemplate SelectTemplate(object item, DependencyObject container)
{
FrameworkElement fe = container as FrameworkElement;
ItemExtender <IScaleNote, bool> extender = item as ItemExtender <IScaleNote, bool>;
if (extender == null)
{
return(null);
}
else if (extender.Item.Name.StartsWith("C#") || extender.Item.Name.StartsWith("F#"))
{
return((DataTemplate)fe.FindResource("BlackKeyTemplateC"));
}
else if (extender.Item.Name.StartsWith("D#") || extender.Item.Name.StartsWith("A#"))
{
return((DataTemplate)fe.FindResource("BlackKeyTemplateD"));
}
else if (extender.Item.Name.Contains("#"))
{
return((DataTemplate)fe.FindResource("BlackKeyTemplateG"));
}
else
{
return((DataTemplate)fe.FindResource("WhiteKeyTemplate"));
}
}
public void HandleNoteOff(int noteNumber, int velocity, MidiChannel channel = MidiChannel.Omni)
{
ItemExtender <IScaleNote, bool> note = Notes.FirstOrDefault(n => n.Item.MidiNoteNumber == noteNumber);
if (note != null && note.Value)
{
note.Value = false;
}
}
private void AddNotes(int bottomNoteIndex, int topNoteIndex)
{
for (int i = bottomNoteIndex; i <= topNoteIndex; i++)
{
ItemExtender <IScaleNote, bool> item = new ItemExtender <IScaleNote, bool>(Scale.EqualTemperedScale[i], false);
item.PropertyChanged += HandleNoteSelectionChanged;
_notes.Add(item);
}
}
public void HandleNoteOn(int noteNumber, int velocity, MidiChannel channel = MidiChannel.Omni)
{
ItemExtender <IScaleNote, bool> note = Notes.FirstOrDefault(n => n.Item.MidiNoteNumber == noteNumber);
if (note != null && !note.Value)
{
//Dispatcher.BeginInvoke(DispatcherPriority.Send, new Action(() => Velocity = velocity / 127d));
note.Value = true;
}
}
