using PdfSharp.Fonts; using System.Reflection; namespace pdfsharpDemo;/// <summary>/// 中文字体解析器/// </summary>public class ChineseFontResolver : IFontResolver{    /// <summary>    /// 字体作为嵌入资源所在程序集    /// </summary>    public static string FontAssemblyString { get; set; } = "pdfsharpDemo";    /// <summary>    /// 字体作为嵌入资源所在命名空间    /// </summary>    public static string FontNamespace { get; set; } = "pdfsharpDemo.Fonts";    /// <summary>    /// 字体名称    /// </summary>    public static class FamilyNames    {        // This implementation considers each font face as its own family.        /// <summary>        /// 仿宋        /// </summary>        public const string SIMFANG = "simfang.ttf";        /// <summary>        /// 黑体        /// </summary>        public const string SIMHEI = "simhei.ttf";        /// <summary>        /// 楷书        /// </summary>        public const string SIMKAI = "simkai.ttf";        /// <summary>        /// 隶书        /// </summary>        public const string SIMLI = "simli.ttf";        /// <summary>        /// 宋体        /// </summary>        public const string SIMSUN = "simsun.ttf";        /// <summary>        /// 宋体加粗        /// </summary>        public const string SIMSUNB = "simsunb.ttf";        /// <summary>        /// 幼圆        /// </summary>        public const string SIMYOU = "simyou.ttf";    }    /// <summary>    /// Selects a physical font face based on the specified information    /// of a required typeface.    /// </summary>    /// <param name="familyName">Name of the font family.</param>    /// <param name="isBold">Set to <c>true</c> when a bold font face    ///  is required.</param>    /// <param name="isItalic">Set to <c>true</c> when an italic font face     /// is required.</param>    /// <returns>    /// Information about the physical font, or null if the request cannot be satisfied.    /// </returns>    public FontResolverInfo? ResolveTypeface(string familyName, bool isBold, bool isItalic)    {        // Note: PDFsharp calls ResolveTypeface only once for each unique combination        // of familyName, isBold, and isItalic.         return new FontResolverInfo(familyName, isBold, isItalic);        // Return null means that the typeface cannot be resolved and PDFsharp forwards        // the typeface request depending on PDFsharp build flavor and operating system.        // Alternatively forward call to PlatformFontResolver.        //return PlatformFontResolver.ResolveTypeface(familyName, isBold, isItalic);    }    /// <summary>    /// Gets the bytes of a physical font face with specified face name.    /// </summary>    /// <param name="faceName">A face name previously retrieved by ResolveTypeface.</param>    /// <returns>    /// The bits of the font.    /// </returns>    public byte[]? GetFont(string faceName)    {        // Note: PDFsharp never calls GetFont twice with the same face name.        // Note: If a typeface is resolved by the PlatformFontResolver.ResolveTypeface        //       you never come here.        var name = $"{FontNamespace}.{faceName}";        using Stream stream = Assembly.Load(FontAssemblyString).GetManifestResourceStream(name) ?? throw new ArgumentException("No resource named '" + name + "'.");        int num = (int)stream.Length;        byte[] array = new byte[num];        stream.Read(array, 0, num);        // Return the bytes of a font.        return array;    }}