protected override void OnBeginPrint(PrintContext context)
{
layout = PangoUtil.CreateLayout(context);
layout.FontDescription = settings.Font;
using (var PangoContext = context.CreatePangoContext())
using (var metrics = PangoContext.GetMetrics(settings.Font, PangoContext.Language)) {
lineHeight = Math.Ceiling(0.5 + (metrics.Ascent + metrics.Descent) / Pango.Scale.PangoScale);
}
SetHeaderFormat(settings.HeaderFormat);
SetFooterFormat(settings.FooterFormat);
style = SyntaxHighlightingService.GetEditorTheme(settings.EditorTheme);
pageWidth = context.PageSetup.GetPageWidth(Unit.Pixel);
pageHeight = context.PageSetup.GetPageHeight(Unit.Pixel);
double contentHeight = pageHeight
- (headerLines > 0? settings.HeaderPadding : 0)
- (footerLines > 0? settings.FooterPadding : 0);
linesPerPage = (int)(contentHeight / lineHeight) - (headerLines + footerLines);
totalPages = (int)Math.Ceiling((double)editor.LineCount / linesPerPage);
NPages = totalPages;
base.OnBeginPrint(context);
}