C#字体池技术实现代码详解

/// <summary>
/// 字体缓存类
/// </summary>
public static class FontStatic
{
  /// <summary>
  /// 缓存数组
  /// </summary>
  private static Dictionary<string, Font> sFonts = new Dictionary<string, Font>();
 
  /// <summary>
  /// 根据字体获取一个缓存的字体对象
  /// </summary>
  /// <param name="font">字体</param>
  /// <returns>已缓存字体</returns>
  public static Font GetFont(Font font)
  {
    string key = string.Format("{0}-{1}-{2}-{3}", font.Name, font.Size, font.Italic, font.Bold);
    if (!sFonts.ContainsKey(key))
    {
      sFonts.Add(key, font);
    }
 
    return sFonts[key];
  }
}