//// This code is part of Document Solutions for PDF .NET demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System.IO;using System.Drawing;using GrapeCity.Documents.Pdf;using GrapeCity.Documents.Text;
namespace DsPdfWeb.Demos.Basics{    // Creates a simple 3-column text layout.    // For a slightly more complex but practically more useful way    // to render text in columns, see BalancedColumns.    public class MultiColumnText    {        public int CreatePDF(Stream stream)        {            var doc = new GcPdfDocument();            var g = doc.NewPage().Graphics;            var tl = g.CreateTextLayout();            tl.DefaultFormat.Font = StandardFonts.Times;            tl.DefaultFormat.FontSize = 12;            tl.TextAlignment = TextAlignment.Justified;            tl.FirstLineIndent = 72 / 2;            tl.ParagraphSpacing = 72 / 8;            // Add some text (note that TextLayout interprets "\r\n" as paragraph delimiter):            tl.Append(Common.Util.LoremIpsum(20));            // Set up columns:            const int colCount = 3;            // 1/2" margins all around:            const float margin = 72 / 2;            // 1/4" gap between columns:            const float colGap = margin / 4;            float colWidth = (doc.Pages.Last.Size.Width - margin * 2) / colCount - colGap * (colCount - 1);            tl.MaxWidth = colWidth;            tl.MaxHeight = doc.Pages.Last.Size.Height - margin * 2;            // Calculate glyphs and perform layout for the whole text:            tl.PerformLayout(true);            // In a loop, split and render the text in the current column:            int col = 0;            while (true)            {                // 'rest' will accept the text that did not fit:                var splitResult = tl.Split(null, out TextLayout rest);                g.DrawTextLayout(tl, new PointF(margin + col * (colWidth + colGap), margin));                if (splitResult != SplitResult.Split)                    break;                tl = rest;                if (++col == colCount)                {                    doc.Pages.Add();                    g = doc.Pages.Last.Graphics;                    col = 0;                }            }            // Done:            doc.Save(stream);            return doc.Pages.Count;        }    }}