public FontManager()
{
families = new List <FontFamily> ();
using (Pango.Context c = PangoHelper.ContextGet())
families.AddRange(c.Families);
}
private int GetTextPixelLength(string text, string font)
{
int width, height;
Screen screen = Screen.Default;
Pango.Layout layout = new Pango.Layout(PangoHelper.ContextGetForScreen(screen));
layout.FontDescription = Pango.FontDescription.FromString(font);
layout.SetText(text);
layout.GetPixelSize(out width, out height);
return(width);
}