/// <summary>
/// 字體緩存類
/// </summary>
public static class FontStatic
{
  /// <summary>
  /// 緩存數(shù)組
  /// </summary>
  private static Dictionary<string, Font> sFonts = new Dictionary<string, Font>();
 
  /// <summary>
  /// 根據(jù)字體獲取一個緩存的字體對象
  /// </summary>
  /// <param name="font">字體</param>
  /// <returns>已緩存字體</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];
  }
}