//// This code is part of Document Solutions for Imaging demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System.Drawing;using System.IO;using GrapeCity.Documents.Text;using GCTEXT = GrapeCity.Documents.Text;using GrapeCity.Documents.Imaging;
namespace DsImagingWeb.Demos{    // This sample demonstrates how LineBreakingRules and TextExtensionStrategy affect automatic    // line wrapping and distributed justification.    // LineBreakingRules.Unicode and .Simplified may break inside a run of non-whitespace    // characters (e.g. between a Latin/digit run and an adjacent CJK run) to pack a line tighter;    // LineBreakingRules.WhiteSpace only wraps at whitespace, keeping such runs (hyphenated    // identifiers, codes, product names, file names, URLs) intact on one line instead.    public class TextJustifyRules    {        public GcBitmap GenerateImage(Size pixelSize, float dpi, bool opaque, string[] _ = null)        {            var regular = GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "NotoSansJP-Regular.ttf"));            var bold = GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "NotoSerif-Bold.ttf"));
            var bmp = new GcBitmap(pixelSize.Width, pixelSize.Height, opaque, dpi, dpi);
            using var g = bmp.CreateGraphics(Color.White);
            var tl = g.CreateTextLayout();            tl.TextAlignment = TextAlignment.Distributed;            tl.JustifiedSpaceExtension = 0f;            tl.JustifiedTextExtension = 20f;
            var tf = new TextFormat { FontSize = 14f, Font = regular };            var tfInfo = new TextFormat { FontSize = 9f, Font = bold };
            float marginx = 372, marginy = 28;            tl.MaxWidth = pixelSize.Width - marginx * 2;            var text = "1234567890-890-9876-54321-123986321 10abc9876 56A-345本列島で使われ456";
            float DrawText(TextLayout tl, float y)            {                var pt = new PointF(marginx, y + 12);                tl.Append(text, tf);                tl.PerformLayout(true);                var rc = new RectangleF(pt, new SizeF(tl.ContentWidth, tl.ContentHeight));                g.FillRectangle(rc, Color.PaleGoldenrod);                g.DrawString($"LineBreakingRules.{tl.LineBreakingRules}, TextExtensionStrategy.{tl.TextExtensionStrategy}:",                    tfInfo, new PointF(marginx / 2f, y));                g.DrawTextLayout(tl, pt);                tl.Clear();                return rc.Bottom + 8;            }
            float y = marginy;            y = DrawText(tl, y);            tl.TextExtensionStrategy = TextExtensionStrategy.EastAsianExcel;            y = DrawText(tl, y);            tl.TextExtensionStrategy = TextExtensionStrategy.Excel;            y = DrawText(tl, y);            tl.LineBreakingRules = LineBreakingRules.Simplified;            tl.WordBoundaryRules = WordBoundaryRules.Simplified;            tl.TextExtensionStrategy = TextExtensionStrategy.Default;            y = DrawText(tl, y);            tl.TextExtensionStrategy = TextExtensionStrategy.EastAsianExcel;            y = DrawText(tl, y);            tl.TextExtensionStrategy = TextExtensionStrategy.Excel;            y = DrawText(tl, y);            tl.LineBreakingRules = LineBreakingRules.WhiteSpace;            tl.WordBoundaryRules = WordBoundaryRules.Unicode; // WordBoundaryRules has no WhiteSpace value - it only affects word-boundary lookups, not wrapping            tl.TextExtensionStrategy = TextExtensionStrategy.Default;            y = DrawText(tl, y);            tl.TextExtensionStrategy = TextExtensionStrategy.EastAsianExcel;            y = DrawText(tl, y);            tl.TextExtensionStrategy = TextExtensionStrategy.Excel;            y = DrawText(tl, y);
            return bmp;        }    }}