//// This code is part of Document Solutions for Imaging demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System.IO;using System.Drawing;using GrapeCity.Documents.Text;using GrapeCity.Documents.Imaging;using GCTEXT = GrapeCity.Documents.Text;
namespace DsImagingWeb.Demos{    // This sample shows the different (anti)aliasing modes of rendering text:    // - No anti-aliasing, very fast but poor quality (not recommended).    // - Fast anti-aliasing. This is the default that provides good quality and fast rendering.    // - Slow anti-aliasing. Highest quality but slower than the default.    public class Antialiasing    {        public GcBitmap GenerateImage(Size pixelSize, float dpi, bool opaque, string[] sampleParams = null)        {            var bmp = new GcBitmap(pixelSize.Width, pixelSize.Height, true, dpi, dpi);            using var g = bmp.CreateGraphics(Color.FromArgb(unchecked((int)0xffccf2ff)));            g.Renderer.Multithreaded = true;
            var text = Common.Util.LoremIpsum();            var tsize = new SizeF(bmp.Width / 2, bmp.Height / 2);            var pad = 96f / 4;
            var tfcap = new TextFormat()            {                Font = GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "NotoSerif-Bold.ttf")),                FontSize = 16,            };
            var tl = g.CreateTextLayout();            tl.DefaultFormat.Font = GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "NotoSerif-Regular.ttf"));            tl.DefaultFormat.FontSize = 14;            tl.TextAlignment = TextAlignment.Justified;            tl.FirstLineIndent = 96 / 2;            tl.ParagraphSpacing = 96 / 8;            tl.MaxWidth = tsize.Width;            tl.MaxHeight = tsize.Height;            tl.MarginAll = pad;
            var tloc = PointF.Empty;            using (g.PushClip(new RectangleF(tloc, tsize)))            {                bmp.Renderer.Aliased = true;                tl.AppendLine("No anti-aliasing (worst quality)", tfcap);                tl.Append(text);                tl.PerformLayout(true);                g.DrawTextLayout(tl, tloc);            }            tloc.X += tsize.Width;            using (g.PushClip(new RectangleF(tloc, tsize)))            {                bmp.Renderer.Aliased = false;                bmp.Renderer.SlowAntialiasing = false;                tl.Clear();                tl.AppendLine("Fast anti-aliasing (default quality)", tfcap);                tl.Append(text);                tl.PerformLayout(true);                g.DrawTextLayout(tl, tloc);            }            tloc.X = 0;            tloc.Y += tsize.Height;            using (g.PushClip(new RectangleF(tloc, tsize)))            {                bmp.Renderer.Aliased = false;                bmp.Renderer.SlowAntialiasing = true;                tl.Clear();                tl.AppendLine("Slow anti-aliasing (highest quality)", tfcap);                tl.Append(text);                tl.PerformLayout(true);                g.DrawTextLayout(tl, tloc);            }            return bmp;        }    }}