/// <summary>
/// Create and initialize the rendering engine. This method sets all of the configuration settings
/// and parses the songs into the initial list of nodes.
/// </summary>
/// <param name="song">Song.</param>
/// <param name="fonts">Fonts.</param>
/// <param name="appSettings">App settings.</param>
/// <param name="pageSetup">Page setup.</param>
/// <param name="forDisplay">If set to <c>true</c> for display.</param>
public RenderEngine(SongData song, AppSettings appSettings, PageSetup pageSetup, RenderOption renderOption)
{
_song = song;
_renderOption = renderOption;
_appSettings = appSettings;
#region Page Setup
_pageSettings.PaperHeight = pageSetup.GetPaperHeight(Unit.Pixel);
_pageSettings.PaperWidth = pageSetup.GetPaperWidth(Unit.Pixel);
_pageSettings.PageHeight = pageSetup.GetPageHeight(Unit.Pixel);
_pageSettings.PageWidth = pageSetup.GetPageWidth(Unit.Pixel);
_pageSettings.TopMargin = pageSetup.GetTopMargin(Unit.Pixel);
_pageSettings.LeftMargin = pageSetup.GetLeftMargin(Unit.Pixel);
_paperHeight = Convert.ToInt32((long)_pageSettings.PaperHeight);
_paperWidth = Convert.ToInt32((long)_pageSettings.PaperWidth);
#endregion
ParseSong(_song);
}