//// This code is part of Document Solutions for PDF .NET demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System.IO;using System.Collections.Generic;using System.Drawing;using GrapeCity.Documents.Pdf;using GrapeCity.Documents.Text;
namespace DsPdfWeb.Demos.Basics{    // Demonstrates rendering of vertical text in LTR and RTL modes.    // Also shows how to have text flow around rectangular objects.    // See also JapaneseColumns.    public class VerticalText    {        public int CreatePDF(Stream stream)        {            var doc = new GcPdfDocument();            var page = doc.NewPage();            // Use Landscape orientation:            page.Landscape = true;            var g = page.Graphics;            // Some sample texts in Japanese, English and Arabic:            string text1 = "学校教育の「国語」で教えられる。";            string text2 = " flow direction. ";            string text3 = "النص العربي 12 + 34 = 46 مع الأرقام ";            // Init font cache and get the required fonts:            var fc = new FontCollection();            fc.RegisterDirectory(Path.Combine("Resources", "Fonts"));            var fnt1 = fc.FindFamilyName("Noto Sans JP");            var fnt2 = fc.FindFamilyName("Noto Sans");            var fnt3 = fc.FindFamilyName("Noto Sans Arabic");            // Create text formats:            var tf1 = new TextFormat() { Font = fnt1 };            var tf2 = new TextFormat() { Font = fnt2 };            var tf3 = new TextFormat() { Font = fnt3 };            // Create TextLayout and set some options on it:            var tl = g.CreateTextLayout();            tl.FirstLineIndent = 36;            tl.TextAlignment = TextAlignment.Justified;            // This setting justifies the last line too:            tl.LastLineIsEndOfParagraph = false;            // Set all margins to 1":            tl.MarginAll = tl.Resolution;            tl.MaxWidth = page.Size.Width;            tl.MaxHeight = page.Size.Height;            // RTL layout:            tl.RightToLeft = false;            // Build a list of objects for the text to flow around:            tl.ObjectRects = new List<ObjectRect>()            {                new ObjectRect(540, 100, 120, 160),                new ObjectRect(100, 290, 170, 100),                new ObjectRect(500, 350, 170, 100)            };            // Fill corresponding rectangles on page so that we can see them:            foreach (var or in tl.ObjectRects)                g.FillRectangle(or.ToRectangleF(), Color.PaleVioletRed);
            // Add text to layout:            for (int i = 0; i < 3; i++)            {                tl.Append(text1, tf1);                tl.Append("Horizontal Top To Bottom" + text2, tf2);                tl.AppendLine(text3, tf3);            }            // Perform and draw first layout:            tl.PerformLayout(true);            g.DrawTextLayout(tl, PointF.Empty);            g.FillRectangle(tl.ContentRectangle, Color.FromArgb(20, Color.Red));
            // Create 2nd layout - vertical rotated counter-clockwise:            var t = tl.ContentHeight;            tl.Clear();            tl.RotateSidewaysCounterclockwise = true;            tl.FlowDirection = FlowDirection.VerticalLeftToRight;            tl.MarginTop += t;            // Add text to layout:            for (int i = 0; i < 3; i++)            {                tl.Append(text1, tf1);                tl.Append("Vertical Left To Right" + text2, tf2);                tl.AppendLine(text3, tf3);            }            // Perform and draw second layout:            tl.PerformLayout(true);            g.DrawTextLayout(tl, PointF.Empty);            g.FillRectangle(tl.ContentRectangle, Color.FromArgb(20, Color.Green));
            // Create 3rd layout - vertical:            tl.Clear();            tl.FlowDirection = FlowDirection.VerticalRightToLeft;            tl.RotateSidewaysCounterclockwise = false;            // Add text to layout:            for (int i = 0; i < 3; i++)            {                tl.Append(text1, tf1);                tl.Append("Vertical Right To Left" + text2, tf2);                tl.AppendLine(text3, tf3);            }            // Perform and draw third layout:            tl.PerformLayout(true);            g.DrawTextLayout(tl, PointF.Empty);            g.FillRectangle(tl.ContentRectangle, Color.FromArgb(20, Color.Blue));            // Done:            doc.Save(stream);            return doc.Pages.Count;        }    }}