//// 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{    // This sample demonstrates how to display ellipsis    // if a string does not fit in the allocated space.    public class TextTrimming    {        public int CreatePDF(Stream stream)        {            var doc = new GcPdfDocument();            var page = doc.NewPage();            var g = page.Graphics;            const float In = 72;
            var str = "This is a long line of text which does not fit in the allocated space.";            var wid = In * 4;            var dy = 0.3f;
            var rc = Common.Util.AddNote(                "TextLayout allows you to display ellipsis (or other character) " +                "at the end of a text line that did not fit in the allocated space.\n" +                "To use trimming, set TrimmingGranularity to Character or Word " +                "(the default is None). Trimming will kick in if WrapMode is NoWrap, " +                "and the text is too long. Wrapped text may also display trimming if " +                "the layout width is too narrow to fit a single word.\n" +                "Below are examples of text untrimmed, trimmed to character and to word. " +                "The next line demonstrates a different trimming character (tilde in this case). " +                "The line before last shows how to trim text (respecting TrimmingGranularity) " +                "without adding any trimming character. " +                "Finally the last line shows the use of DelimiterCharCode and DelimiterCharCount " +                "properties to shorten file paths.",                page);            var top = rc.Bottom + 36;
            var ip = new PointF(rc.Left, top);
            var tl = g.CreateTextLayout();            tl.DefaultFormat.Font = StandardFonts.Times;            tl.DefaultFormat.FontSize = 12;            tl.MaxWidth = wid;            tl.WrapMode = WrapMode.NoWrap;
            // TrimmingGranularity is None by default:            tl.Append(str);            tl.PerformLayout(true);            g.DrawTextLayout(tl, ip);            ip.Y += tl.ContentHeight + dy;
            // Character trimming:            tl.TrimmingGranularity = TrimmingGranularity.Character;            // NOTE that the recalculateGlyphsBeforeLayout parameter to PerformLayout            // may be false after the first call, as the text/font has not changed:            tl.PerformLayout(false);            g.DrawTextLayout(tl, ip);            ip.Y += tl.ContentHeight + dy;
            // Word trimming:            tl.TrimmingGranularity = TrimmingGranularity.Word;            tl.PerformLayout(false);            g.DrawTextLayout(tl, ip);            ip.Y += tl.ContentHeight + dy;
            // tl.EllipsisCharCode is HorizontalEllipsis (0x2026) by default.            // Change it to a tilde:            tl.EllipsisCharCode = 0x007E;            tl.PerformLayout(false);            g.DrawTextLayout(tl, ip);            ip.Y += tl.ContentHeight + dy;
            // We can also set tl.EllipsisCharCode to 0 to trim text            // without rendering any trimming character:            tl.EllipsisCharCode = 0;            tl.PerformLayout(false);            g.DrawTextLayout(tl, ip);            ip.Y += tl.ContentHeight + dy;
            // Another interesting feature is provided by the pair of            // DelimiterCharCode and DelimiterCharCount properties.            // These would typically be used to shorten long paths            // preserving a specified number of parts at the string's tail:            tl.Clear();            tl.EllipsisCharCode = 0x2026;            tl.Append(@"c:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe");            tl.DelimiterCharCode = '\\';            tl.DelimiterCharCount = 2;            tl.PerformLayout(true);            g.DrawTextLayout(tl, ip);            ip.Y += tl.ContentHeight + dy;
            g.DrawRectangle(new RectangleF(rc.Left, top, wid, ip.Y - top), Color.OrangeRed);
            // Done:            doc.Save(stream);            return doc.Pages.Count;        }    }}