//// 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 lists all fonts found in a loaded PDF,    // prints some info for each font, and indicates whether a Font object    // can be created from the font in the PDF.    public class ListFonts    {        public int CreatePDF(Stream stream)        {            const string sourcePDF = "CompleteJavaScriptBook.pdf";
            var doc = new GcPdfDocument();            var page = doc.NewPage();            var rc = Common.Util.AddNote(                "This sample loads an arbitrary PDF into a temporary GcPdfDocument, " +                "and lists all fonts found in that document, with some of their properties. " +                "It also tries to create a Font object from each of those PDF fonts, " +                "and reports whether this operation succeeded.",                page);
            // Text layout to render the text:            var tab = 24;            var tl = page.Graphics.CreateTextLayout();            tl.DefaultFormat.Font = StandardFonts.Times;            tl.DefaultFormat.FontSize = 12;            tl.MaxWidth = doc.PageSize.Width;            tl.MaxHeight = doc.PageSize.Height;            tl.MarginAll = rc.Left;            tl.MarginTop = rc.Bottom + 36;            tl.TabStops = [ new (tab) ];            tl.FirstLineIndent = -tab;            tl.MarginRight = 144;
            // Text split options for widow/orphan control:            var to = new TextSplitOptions(tl)            {                KeepParagraphLinesTogether = true,                MinLinesInFirstParagraph = 2,                MinLinesInLastParagraph = 2,                RestMarginTop = rc.Left,            };
            // Open an arbitrary PDF, load it into a temp document and get all fonts:            using var fs = File.OpenRead(Path.Combine("Resources", "PDFs", sourcePDF));            var doc1 = new GcPdfDocument();            doc1.Load(fs);
            var fonts = doc1.GetFonts();            tl.AppendLine($"Total of {fonts.Count} fonts found in {sourcePDF}:");            tl.AppendLine();            int i = 0;            foreach (var font in fonts)            {                var nativeFont = font.CreateNativeFont();                tl.Append($"{i}:\tBaseFont: {font.BaseFont}; IsEmbedded: {font.IsEmbedded}.");                tl.AppendParagraphBreak();                if (nativeFont != null)                    tl.AppendLine($"\tCreateNativeFont succeeded, family: {nativeFont.FontFamilyName}; bold: {nativeFont.FontBold}; italic: {nativeFont.FontItalic}.");                else                    tl.AppendLine("\tCreateNativeFont failed");                tl.AppendLine();                ++i;            }            tl.PerformLayout(true);            while (true)            {                // 'rest' will accept the text that did not fit:                var splitResult = tl.Split(to, out TextLayout rest);                doc.Pages.Last.Graphics.DrawTextLayout(tl, PointF.Empty);                if (splitResult != SplitResult.Split)                    break;                tl = rest;                doc.NewPage();            }            // Done:            doc.Save(stream);            return doc.Pages.Count;        }    }}