ConsoleHelper 类

//Writes colored text to the console and allows to clear previously written lines
//as long a not line break is present

//Sample - screenshot at http://img299.imageshack.us/img299/3931/consolex.png

C.InfoLine("Non-colored text...");
            
C.Error("Outch, an error.");
Thread.CurrentThread.Join(1000);
C.ClearLine();
C.Warn("Ok, only a warning.");
Thread.CurrentThread.Join(1000);
C.ClearLine();
C.SuccessLine("OK.");

C.InfoColor = ConsoleColor.Blue;
C.InfoLine("I'm feeling blue");


/* ********************************************************** */

    /// <summary>
    /// Console helper class.
    /// </summary>
    public static class C
    {
        /// <summary>
        /// The color that is used to print out errors to the console.
        /// </summary>
        public static ConsoleColor ErrorColor = ConsoleColor.Red;

        /// <summary>
        /// The color that is used to print out warnings to the console.
        /// </summary>
        public static ConsoleColor WarningColor = ConsoleColor.Yellow;

        /// <summary>
        /// The color that is used to print out infos to the console.
        /// </summary>
        public static ConsoleColor SuccessColor = ConsoleColor.Green;

        /// <summary>
        /// The color that is used to print out infos to the console.
        /// If set to null, the current console color is used.
        /// </summary>
        public static ConsoleColor? InfoColor;



        public static void ErrorLine(string msg, params object[] args)
        {
            WriteLine(ErrorColor, msg, args);
        }


        public static void Error(string msg, params object[] args)
        {
            Write(ErrorColor, msg, args);
        }


        public static void WarnLine(string msg, params object[] args)
        {
            WriteLine(WarningColor, msg, args);
        }


        public static void Warn(string msg, params object[] args)
        {
            Write(WarningColor, msg, args);
        }

        public static void InfoLine(string msg, params object[] args)
        {
            WriteLine(InfoColor ?? Console.ForegroundColor, msg, args);
        }

        public static void Info(string msg, params object[] args)
        {
            Write(InfoColor ?? Console.ForegroundColor, msg, args);
        }

        public static void SuccessLine(string msg, params object[] args)
        {
            WriteLine(SuccessColor, msg, args);
        }


        public static void Success(string msg, params object[] args)
        {
            Write(SuccessColor, msg, args);
        }


        /// <summary>
        /// Clears the current line.
        /// </summary>
        public static void ClearLine()
        {
            var position = Console.CursorLeft;
            
            //overwrite with white space (backspace doesn't really clear the buffer,
            //would need a hacky combination of \b\b and single whitespace)
            Console.SetCursorPosition(0, Console.CursorTop);
            Console.Write("".PadRight(position));
            Console.SetCursorPosition(0, Console.CursorTop);
        }


        public static void Write(string msg, params object[] args)
        {
            Console.Write(msg, args);
        }


        public static void WriteLine(ConsoleColor color, string msg, params object[] args)
        {
            Write(color, msg, args);
            Console.Out.WriteLine();
        }


        public static void Write(ConsoleColor color, string msg, params object[] args)
        {
            try
            {
                Console.ForegroundColor = color;
                Console.Write(msg, args);
            }
            finally
            {
                Console.ResetColor();
            }
        }


    }