public int CreatePDF(Stream stream)
{
const int NPAR = 40;
var doc = new GcPdfDocument();
var tl = new TextLayout(72)
{
FirstLineIndent = 72 / 2,
MaxWidth = doc.PageSize.Width,
MaxHeight = doc.PageSize.Height,
MarginAll = 72,
};
tl.DefaultFormat.Font = StandardFonts.Times;
tl.DefaultFormat.FontSize = 12;
// Text format for paragraphs kept together with next one:
var tf = new TextFormat(tl.DefaultFormat)
{
FontSize = tl.DefaultFormat.FontSize + 2,
FontBold = true
};
// We add a number of random 'lorem ipsum' paragraphs to this document,
// adding a 'caption' before each paragraph which is kept together
// with the following 'lorem ipsum' paragraph:
for (int i = 0; i < NPAR; i++)
{
// 'Caption' kept together with the next paragraph:
tl.Append("Caption kept together with the next paragraph. No page break after this.", tf);
// AppendParagraphBreak adds a paragraph break but prevents a page break between the two paragraphs:
tl.AppendParagraphBreak();
// Random paragraph after 'caption':
tl.Append(Common.Util.LoremIpsum(1));
}
tl.PerformLayout(true);
// We force all paragraph lines to stay on the same page,
// this makes it more obvious that 'caption' and following paragraph
// are kept on the same page:
TextSplitOptions to = new TextSplitOptions(tl)
{
KeepParagraphLinesTogether = true,
};
// In a loop, split and render the text:
while (true)
{
// 'rest' will accept the text that did not fit:
var splitResult = tl.Split(to, out TextLayout rest);
doc.Pages.Add().Graphics.DrawTextLayout(tl, PointF.Empty);
if (splitResult != SplitResult.Split)
{
break;
}
tl = rest;
}
// Done:
doc.Save(stream);
return(doc.Pages.Count);
}
