//// 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.Pdf.Annotations;
namespace DsPdfWeb.Demos.Basics{    // Shows how to add annotations to a PDF document.    public class AnnotationTypes    {        public int CreatePDF(Stream stream)        {            var doc = new GcPdfDocument();            var page = doc.NewPage();            var g = page.Graphics;            // User names for annotations' authors:            var user1 = "Jaime Smith";            var user2 = "Jane Donahue";
            var noteWidth = 72 * 4;            var gap = 8;
            var rc = Common.Util.AddNote(                "This sample demonstrates some types of annotations that can be created with DsPdf.\n" +                "Note that some annotation types may not display in certain viewers (such as built-in browser viewers)." +                "To see all annotations on this page, open it in Acrobat Reader or other full-featured PDF viewer.",                page);
            // Text annotation:            var ip = new PointF(rc.X, rc.Bottom + gap);            rc = Common.Util.AddNote(                "A red text annotation is placed to the right of this note.",                page, new RectangleF(ip.X, ip.Y, noteWidth, 100));            var textAnnot = new TextAnnotation()            {                UserName = user1,                Contents = "This is annotation 1, a red one.",                Rect = new RectangleF(rc.Right, rc.Top, 72 * 2, 72),                Color = Color.Red,            };            page.Annotations.Add(textAnnot);            // A reply to previous annotation:            var textAnnotReply = new TextAnnotation()            {                UserName = user2,                Contents = "This is a reply to the first annotation.",                Rect = new RectangleF(rc.Right, rc.Top, 72 * 2, 72),                ReferenceAnnotation = textAnnot,                ReferenceType = AnnotationReferenceType.Reply,            };            page.Annotations.Add(textAnnotReply);
            // An initially open text annotation:            ip = new PointF(rc.X, rc.Bottom + gap);            rc = Common.Util.AddNote(                "A green text annotation that is initially open is placed to the right of this note.",                page, new RectangleF(ip.X, ip.Y, noteWidth, 100));            var textAnnotOpen = new TextAnnotation()            {                Open = true,                UserName = user1,                Contents = "This is an initially open annotation (green).",                Rect = new RectangleF(rc.Right, rc.Top, 72 * 2, 72),                Color = Color.Green,            };            page.Annotations.Add(textAnnotOpen);
            // A free text annotation (shows directly on page):            ip = new PointF(rc.X, rc.Bottom + gap);            rc = Common.Util.AddNote(                "A blue free text annotation is placed below and to the right, with a callout going from it to this note.",                page, new RectangleF(ip.X, ip.Y, noteWidth, 100));            var freeAnnot = new FreeTextAnnotation()            {                Rect = new RectangleF(rc.Right + 18, rc.Bottom + 9, 72 * 2, 72),                CalloutLine = new PointF[]                {                    new PointF(rc.Left + rc.Width / 2, rc.Bottom),                    new PointF(rc.Left + rc.Width / 2, rc.Bottom + 9 + 36),                    new PointF(rc.Right + 18, rc.Bottom + 9 + 36),                },                LineWidth = 1,                LineEndStyle = LineEndingStyle.OpenArrow,                LineDashPattern = new float[] { 8, 4 },                Contents = "This is a free text annotation with a callout line going to the note on the left.",                Color = Color.LightSkyBlue,            };            page.Annotations.Add(freeAnnot);
            // Another free text annotation, with some rich text inside:            ip = new PointF(rc.X, freeAnnot.Rect.Bottom + gap);            var freeRichAnnot = new FreeTextAnnotation()            {                Rect = new RectangleF(ip.X - 144, ip.Y, 72 * 5, 72),                LineWidth = 1,                Color = Color.LightSalmon,                RichText =                    "<body><p>This is another <i>free text annotation</i>, with <b><i>Rich Text</i></b> content.</p>" +                    "<p>Even though a <b>free text</b> annotation displays text directly on a page, " +                    "as other annotations it can be placed outside the page's bounds.</p></body>"            };            page.Annotations.Add(freeRichAnnot);
            // A square annotation around a note:            ip = new PointF(rc.X, freeRichAnnot.Rect.Bottom + gap * 2);            rc = Common.Util.AddNote(                "A square annotation drawn with a 3pt wide orange line around this note has a rich text associated with it.",                page, new RectangleF(ip.X, ip.Y, noteWidth, 100));
            rc.Inflate(8, 8);            var squareAnnot = new SquareAnnotation()            {                UserName = user2,                Rect = rc,                LineWidth = 3,                Color = Color.Orange,                RichText =                    "<body><p>This <b><i>rich text</i></b> is associated with the square annotation around a text note.</p></body>"            };            page.Annotations.Add(squareAnnot);
            // Done:            doc.Save(stream);            return doc.Pages.Count;        }    }}