/// <summary>
/// Initialize offset for this page
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void PianoKeys_OnLoaded(object sender, RoutedEventArgs e)
{
_pianoRollContext = this.DataContext as PianoRollContext;
foreach (var item in
from object item in PianoKeys.ItemsSource
let key = item as KeyContext
where key.Value == PianoRollContext.TopKey
select item)
{
PianoKeys.ScrollTo(item);
_cellWidth = (_items[item].ActualWidth * 4) / (5 * 16);
}
}
/// <summary>
/// Query database and load the information for sample
/// </summary>
/// <param name="sampleId">ID of loading sample</param>
public override void LoadData(int sampleId)
{
this._currentSample = this.DataBaseContext.Samples.FirstOrDefault(x => x.Id == sampleId);
Tacts = new ObservableCollection <PianoRollContext>();
if (_currentSample == null)
{
return;
}
for (var i = _currentSample.InitialTact; i < _currentSample.InitialTact + _currentSample.Size; i++)
{
var tact = new PianoRollContext(i);
tact.AddedNote += OnAddedNote;
tact.DeletedNote += OnDeletedNote;
foreach (var key in tact.Keys)
{
key.Notes =
new ObservableCollection <ToDoNote>(_currentSample.Notes.Where
(x => x.MidiNumber == (byte)key.Value && x.Tact == tact.TactNumber));
}
Tacts.Add(tact);
}
}
