//==============================================================
//Scale Add/Delete
partial void RunSaveScaleDialog()
{
/*guardians*/
if (currentShowScale != null)
{
WarnUser(this.Localizer["Cannot save the new scale while other scale is in display"]);
return;
}
if (currentSound == 0)
{
WarnUser(this.Localizer["Cannot save empty scale"]);
return;
}
var selectedNotes = new List <Note>();
foreach (var note in Notes)
{
if (note.IsChecked)
{
selectedNotes.Add(note);
}
}
var dialogWindow = new ScaleSaveDialogWindow(selectedNotes.ToArray());
dialogWindow.DataContext = this;
var dialogResult = dialogWindow.ShowDialog();
if (dialogResult == true)
{
/*guardians*/
if (dialogWindow.ScaleName == null)
{
throw new ArgumentNullException("dialogWindow.ScaleName");
}
if (dialogWindow.KeynoteOfChoice == null)
{
throw new ArgumentNullException("dialogWindow.KeynoteOfChoice");
}
string scaleName = dialogWindow.ScaleName;
Sound keynoteSound = dialogWindow.KeynoteOfChoice.Sound;
Scale newScale = new Scale(scaleName, keynoteSound, currentSound);
AdditionalScales.Add(newScale);
ScalesAll.Add(newScale);
ScalesAll.Sort(new ScalesSorter());
Request_SaveAdditionalScales?.Invoke(AdditionalScales.ToArray());
MessageBox.Show(this.Localizer["Scale successfully saved"]);
ClearUI();
}
}
partial void DeleteSelectedScale()
{
if (currentShowScale == null)
{
WarnUser(this.Localizer["To delete the scale one must first select it"]);
return;
}
var scaleToDelete = currentShowScale;
bool itIsBasicScale = default(bool);
foreach (var scale in ScalesBasic)
{
if (Object.ReferenceEquals(scaleToDelete, scale))
{
itIsBasicScale = true;
break;
}
}
if (itIsBasicScale)
{
WarnUser(this.Localizer["Cannot delete basic scale"]);
return;
}
var confirmation = MessageBox.Show(this.Localizer["Delete this scale? Are you sure?"], "", MessageBoxButton.YesNo, MessageBoxImage.Question);
if (confirmation != MessageBoxResult.Yes)
{
return;
}
//Point of no return
AdditionalScales.Remove(scaleToDelete);
ScalesAll.Remove(scaleToDelete);
Request_SaveAdditionalScales?.Invoke(AdditionalScales.ToArray());
MessageBox.Show(this.Localizer["Scale deleted"]);
ClearUI();
}
private void FilterAvailableScales()
{
if (currentSound == 0)
{
ScalesToShow = ScalesAll.ToArray();
}
else
{
int initialCapacity = ScalesAll.Count >> 1; // equals to ScalesAll.Count / 2
List <Scale> fittingScales = new List <Scale>(initialCapacity);
foreach (var scale in ScalesAll)
{
//The magic of bitwise comparison, if 'currentSound' - set of notes is a subset of a scale,
//then at the output of the bitwise 'OR' operation we will get the same scale
if ((scale.Sound | currentSound) == scale.Sound)
{
fittingScales.Add(scale);
}
}
ScalesToShow = fittingScales.ToArray();
}
}
