//// This code is part of Document Solutions for PDF .NET demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System;using System.IO;using System.Drawing;using System.Collections.Generic;using GrapeCity.Documents.Pdf;using GrapeCity.Documents.Text;
namespace DsPdfWeb.Demos.Basics{    // This sample demonstrates how to use TextLayout.TabStops to render columns    // of floating point numbers aligned in different ways:    // - aligned on the decimal point via TabStopAlignment.Separator;    // - left-aligned on the tab position using TabStopAlignment.Leading;    // - centered around the tab position using TabStopAlignment.Center;    // - right-aligned on the tab position using TabStopAlignment.Trailing.    public class TabsAlignment    {        public int CreatePDF(Stream stream)        {            // Create and set up the document:            var doc = new GcPdfDocument();            var page = doc.NewPage();            var g = page.Graphics;            // Create and set up a TextLayout object to print the text:            var tl = g.CreateTextLayout();            tl.MaxWidth = page.Size.Width;            tl.MaxHeight = page.Size.Height;            tl.MarginLeft = tl.MarginRight = tl.MarginTop = tl.MarginBottom = 36;            tl.DefaultFormat.Font = StandardFonts.Times;            tl.DefaultFormat.FontSize = 10;            tl.DefaultFormat.BackColor = Color.FromArgb(217, 217, 217);            // Add tab stops with different alignment types            // (the first tab's ctor creates a TabStopAlignment.Separator TabStop):            tl.TabStops = new List<TabStop>()            {                new TabStop(72, '.'),                new TabStop(72 * 2.5f, TabStopAlignment.Leading),                new TabStop(72 * 5, TabStopAlignment.Center),                new TabStop(72 * 7.5f, TabStopAlignment.Trailing),            };            // Render sample text:            tl.Append($"TabStopAlignment:\r\n\tSeparator '.'\tLeading\tCenter\tTrailing\r\n");            double v0 = 1;            double q = (1 + Math.Sqrt(5)) / 2;            for (int i = 1; i < 50; ++i)            {                tl.Append($"\t{v0:R}\t{v0:R}\t{v0:R}\t{v0:R}\r\n");                v0 *= q;            }            tl.PerformLayout(true);            // Draw the text and images:            g.DrawTextLayout(tl, PointF.Empty);            // Done:            doc.Save(stream);            return doc.Pages.Count;        }    }}