// // This code is part of Document Solutions for PDF demos. // Copyright (c) MESCIUS inc. All rights reserved. // using System; using System.IO; using System.Drawing; using GrapeCity.Documents.Pdf; using GrapeCity.Documents.Text; namespace DsPdfWeb.Demos.Basics { // This sample shows how to render a long text spanning multiple pages. public class PaginatedText { public int CreatePDF(Stream stream) { var doc = new GcPdfDocument(); // Use TextLayout to render text: var tl = new TextLayout(72); // If not specifying formats for individual runs, we MUST provide // font and font size on TextLayout.DefaultFormat: tl.DefaultFormat.Font = StandardFonts.Times; tl.DefaultFormat.FontSize = 12; // First line offset 1/2": tl.FirstLineIndent = 72 / 2; // // All other formatting properties are left at their default values. // In particular, TextLayout's default resolution is 72 dpi - // the same as DsPdf's, and WordWrap is true. // // Set TextLayout's area to the whole page: tl.MaxWidth = doc.PageSize.Width; tl.MaxHeight = doc.PageSize.Height; // ...and have it manage the page margins (1" all around): tl.MarginAll = tl.Resolution; // // Append the text (20 paragraphs so they would not fit on a single page) // (note that TextLayout interprets "\r\n" as paragraph delimiter): tl.Append(Common.Util.LoremIpsum(20)); // // When all text has been added, we must calculate the glyphs needed to render the text, // and perform the layout. This can be done by a single call to PerformLayout, passing true to // recalculate glyphs first (even though the text won't all fit in the specified max size, // we only need to call PerformLayout once): tl.PerformLayout(true); // Use split options to provide widow/orphan control: var to = new TextSplitOptions(tl); to.MinLinesInFirstParagraph = 2; to.MinLinesInLastParagraph = 2; // 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; } } }