/// <summary>
/// Adds clef information to an empty Clef object
/// </summary>
/// <param name="_clefobj">Empty clef object</param>
/// <param name="_meiclef">MEI clef element</param>
/// <returns>Clef with data</returns>
public static Model.Clef ConvertClef(Model.Clef _clefobj, mei.Clef _meiclef)
{
_clefobj.Line = ReadLine(_meiclef);
_clefobj.Shape = ConvertClefshape(_meiclef);
return(_clefobj);
}
public void Cleanup()
{
clefobj = null;
meiclef = null;
barline = null;
meibarline = null;
unclear = null;
meicustos = null;
custos = null;
}
public void Init()
{
clefobj = new Model.Clef();
meiclef = new mei.Clef();
barline = new Model.Barline();
meibarline = new mei.BarLine();
unclear = new mei.Unclear();
meicustos = new mei.Custos();
custos = new Model.Custos();
}
/// <summary>
/// Parse celf/@shape into Model.Clefshape
/// </summary>
/// <param name="_meiclef">MEI clef element</param>
/// <returns>Model.Clefshape</returns>
private static Model.Clefshape ConvertClefshape(mei.Clef _meiclef)
{
if (_meiclef.GetShapeValue() == null)
{
return(Model.Clefshape.Null);
}
else if (Enum.TryParse(_meiclef.GetShapeValue(), true, out Model.Clefshape shape))
{
return(shape);
}
else
{
throw new InvalidOperationException("Invalid value of clef/@shape!");
}
}
/// <summary>
/// Reads @line and converts to int
/// </summary>
/// <param name="_meiclef">MEI clef element</param>
/// <returns>parsed @line value as int</returns>
private static int ReadLine(mei.Clef _meiclef)
{
if (_meiclef.GetShapeValue() != null)
{
if (_meiclef.GetLineValue() == null)
{
throw new NullReferenceException("Clef has no line!");
}
else if (Int32.TryParse(_meiclef.GetLineValue(), out int value))
{
return(value);
}
else
{
throw new InvalidOperationException($"Parsing {_meiclef.GetLineAttribute().Name.LocalName} of clef failed!");
}
}
else
{
return(0);
}
}