public bool CanMoveToPreviousSentence(List <Note> selectedNotes, Note targetNote)
{
if (selectedNotes.Count != 1)
{
return(false);
}
Note selectedNote = selectedNotes[0];
if (selectedNote != targetNote || selectedNote.Sentence == null)
{
return(false);
}
// Check that the selected note is the first note in the sentence.
List <Note> notesInSentence = new List <Note>(selectedNote.Sentence.Notes);
notesInSentence.Sort(Note.comparerByStartBeat);
if (notesInSentence.First() != selectedNote)
{
return(false);
}
// Check that there exists a previous sentence
Sentence previousSentence = SongMetaUtils.GetPreviousSentence(selectedNote.Sentence);
return(previousSentence != null);
}
public void MoveToPreviousSentence(Note targetNote)
{
Sentence oldSentence = targetNote.Sentence;
Sentence previousSentence = SongMetaUtils.GetPreviousSentence(targetNote.Sentence);
targetNote.SetSentence(previousSentence);
// Remove old sentence if not more notes left
if (oldSentence.Notes.Count == 0)
{
oldSentence.SetVoice(null);
}
else
{
oldSentence.FitToNotes();
}
}