// // This code is part of Document Solutions for PDF demos. // Copyright (c) MESCIUS inc. All rights reserved. // using System; using System.IO; using System.Drawing; using GrapeCity.Documents.Pdf; using GrapeCity.Documents.Text; using GCTEXT = GrapeCity.Documents.Text; using GCDRAW = GrapeCity.Documents.Drawing; namespace DsPdfWeb.Demos.Basics { // This sample renders a variety of interesting Unicode characters // including surrogate pairs, similar to the Surrogates sample. // Unlike that sample though, it does not rely on any system-provided // fallbacks. Instead, in this sample we purposefully restrict fallback // font lookup to the program's own font collection, and provide // our own set of fallback fonts. // This makes the code platform and system independent, so it produces // exactly the same result on Windows, Linux or Mac. public class SurrogatesPort { public int CreatePDF(Stream stream) { var doc = new GcPdfDocument(); var page = doc.NewPage(); var g = page.Graphics; // As in the Surrogates sample, we specify a standard font // (which lacks many of the glyphs we will be rendering), // and will rely on font fallback support provided by FontCollection: var font = StandardFonts.Helvetica; // Set up text formats for captions, "interesting chars" and spacing: var tf = new TextFormat() { Font = font, FontSize = 12 }; var tf1 = new TextFormat(tf) { FontSize = 14 }; var tfs = new TextFormat(tf) { FontSize = 6 }; // Create a font collection to use: var fc = new FontCollection(); // Add our own fallback fonts to use (note that order is important here, // first come first found): fc.AppendFallbackFonts( GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "NotoSans-Regular.ttf")), GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "NotoSansSC-Regular.ttf")), GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "NotoSansJP-Regular.ttf")), GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "NotoSansSymbols-Regular.ttf")), GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "NotoSansSymbols2-Regular.ttf")), GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "NotoEmoji-Regular.ttf")), GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "NotoMusic-Regular.ttf")), GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "Motomangucode-p7Jj1.ttf")) ); // Restricting default font lookup is done in the TextLayout, so unlike the // {Surrogates} sample, here we cannot use DrawString, but must use // TextLayout and DrawTextLayout directly: // - specify the font collection to use; // - restrict default fonts/fallbacks lookup to the specified collection only; // - set up other props to render the text. var tl = new TextLayout(72) { FontCollection = fc, RestrictedFontLookup = true, FontFallbackScope = FontFallbackScope.FontCollectionOnly, MaxWidth = page.Size.Width, MaxHeight = page.Size.Height, MarginLeft = 72, MarginRight = 72, MarginTop = 36, MarginBottom = 36, TextAlignment = TextAlignment.Center, }; tl.Append("Some Interesting Unicode Characters (system-independent)", new TextFormat(tf) { Underline = true, FontSize = tf.FontSize + 2 }); tl.PerformLayout(true); g.DrawTextLayout(tl, PointF.Empty); tl.MarginTop = tl.ContentRectangle.Bottom + 20; tl.Clear(); tl.TextAlignment = TextAlignment.Leading; // Draw the strings: tl.Append("Surrogate Pairs:\n", tf); tl.Append("\uD867\uDEDB \uD840\uDC0B \uD834\uDD1E \uD834\uDD61 \uD83D\uDC04\n", tf1); tl.Append("\n", tfs); tl.Append("Currency Symbols:\n", tf); tl.Append("\u0024 \u20A0 \u20A1 \u20A2 \u20A3 \u20A4 \u20AC \u20B9 \x20BD\n", tf1); tl.Append("\n", tfs); tl.Append("Mathematical Operators:\n", tf); tl.Append("\u221A \u222B \u2211 \u2210 \u2264 \u2265 \u2202 \u2208\n", tf1); tl.Append("\n", tfs); tl.Append("CJK Ideographs Extension A:\n", tf); tl.Append("\u3400 \u3401 \u3402 \u3403 \u3404 \u3405 \u3406 \u3407\n", tf1); tl.Append("\n", tfs); tl.Append("Letterlike Symbols:\n", tf); tl.Append("\u2110 \u2111 \u2112 \u2113 \u2114 \u2115 \u211B \u211C\n", tf1); tl.Append("\n", tfs); tl.Append("Private Use Area:\n", tf); tl.Append("\uE000 \uE001 \uE010 \uE011 \uE012 \uE013 \uE014 \uE015\n", tf1); tl.Append("\n", tfs); tl.Append("Arrows:\n", tf); tl.Append("\u2190 \u2191 \u2192 \u2193 \u21B0 \u21E6 \u21CB \u21A9\n", tf1); tl.Append("\n", tfs); tl.Append("Dingbats:\n", tf); tl.Append("\u2714 \u2717 \u275B \u275C \u2706 \u2707 \u2708 \u2709\n", tf1); tl.Append("\n", tfs); tl.Append("Braille Patterns:\n", tf); tl.Append("\u2830 \u2831 \u2832 \u2833 \u2834 \u2835 \u2836 \u2837\n", tf1); tl.Append("\n", tfs); tl.Append("Geometric Shapes:\n", tf); tl.Append("\u25D0 \u25D1 \u25D2 \u25D3 \u25A4 \u25F0 \u25BC \u25CE\n", tf1); tl.Append("\n", tfs); tl.Append("Latin Extended A:\n", tf); tl.Append("\u0100 \u0101 \u0102 \u0103 \u0104 \u0105 \u0106 \u0107\n", tf1); tl.Append("\n", tfs); tl.Append("Miscellaneous Symbols:\n", tf); tl.Append("\u2600 \u2601 \u2602 \u2603 \u2604 \u2605 \u2606 \u2607 \u2608 \u2609 \u2614 \u2615 \u26F0\n", tf1); tl.Append("\n", tfs); tl.PerformLayout(true); g.DrawTextLayout(tl, PointF.Empty); // Done: doc.Save(stream); return doc.Pages.Count; } } }