/// <summary>
/// Opens a file.
/// TODO: Remove the switch cases and delegate.
/// TODO: Remove the knowledge of filetypes. What if we want to support MusicXML later?
/// TODO: Remove the calling of the outer viewmodel layer. We want to be able reuse this in an ASP.NET Core application for example.
/// </summary>
/// <param name="fileName"></param>
public void OpenFile(string fileName)
{
if (Path.GetExtension(fileName).EndsWith(".mid"))
{
SequenceReader midiReader = new MidiSequenceReader(fileName);
Sequence = midiReader.Sequence;
MidiSequence = new Sequence();
MidiSequence.Load(fileName);
LilypondViewModel.LilypondTextLoaded(LoadMidiIntoLilypond(MidiSequence));
}
else if (Path.GetExtension(fileName).EndsWith(".ly"))
{
StringBuilder sb = new StringBuilder();
foreach (var line in File.ReadAllLines(fileName))
{
sb.AppendLine(line);
}
LoadLilyPond(sb.ToString());
LilypondViewModel.LilypondTextLoaded(sb.ToString());
}
else
{
throw new NotSupportedException($"File extension {Path.GetExtension(fileName)} is not supported.");
}
LoadStaffsAndMidi();
}
public void SetLilypondViewModel(LilypondViewModel lilypondViewModel)
{
if (_lilypondViewModel != null)
{
_lilypondViewModel.TextChanged -= _lilypondViewModel_TextChanged;
}
_lilypondViewModel = lilypondViewModel;
_lilypondViewModel.TextChanged += _lilypondViewModel_TextChanged;
}
public override void GoInto(LilypondViewModel owner)
{
lastChange = DateTime.Now;
OwnEventmanager.Manager.DispatchEvent("changeInformativeText", showText);
Task.Delay(MILLISECONDS_BEFORE_CHANGE_HANDLED).ContinueWith(task =>
{
if ((DateTime.Now - lastChange).TotalMilliseconds >= MILLISECONDS_BEFORE_CHANGE_HANDLED)
{
OwnEventmanager.Manager.DispatchEvent("reRender", owner.LilypondText);
owner.UndoCommand.RaiseCanExecuteChanged();
OwnEventmanager.Manager.DispatchEvent("changeEditorState", "Idle");
}
}, TaskScheduler.FromCurrentSynchronizationContext()); // Request from main thread.
}
public void Execute(LilypondViewModel editor)
{
editor.SaveAsCommand.Execute("PDF|*.pdf");
}
public EditorDisabledState(LilypondViewModel viewModel) : base(viewModel)
{
ReadOnly = true;
}
public override void GoInto(LilypondViewModel owner)
{
owner.CanEdit = true;
OwnEventmanager.Manager.DispatchEvent("changeInformativeText", showText);
}
public virtual void GoInto(LilypondViewModel owner)
{
}
public void Execute(LilypondViewModel editor)
{
editor.SaveAsCommand.Execute("Lilypond|*.ly");
}
public override void GoInto(LilypondViewModel owner)
{
owner.CanEdit = false;
}
public void Execute(LilypondViewModel editor)
{
editor.LilypondText = editor.LilypondText.Insert(editor.CaretIndex, @"\tempo 4=120");
}
public void Execute(LilypondViewModel editor)
{
editor.LilypondText = editor.LilypondText.Insert(editor.CaretIndex, $"\\time {_beatUnit}/{_beatsPerBar}");
}
protected BaseEditorState(LilypondViewModel viewModel)
{
ViewModel = viewModel;
}
public void Execute(LilypondViewModel editor)
{
editor.LilypondText = editor.LilypondText.Insert(editor.CaretIndex, @"\clef treble");
}
public EditorEnabledState(LilypondViewModel viewModel) : base(viewModel)
{
ReadOnly = false;
}
