class TimeInput : public EditString
{
	public:
	Value Format(const Value& q) const
	{
		//TimeInput::setTime(15,7);
		
		String mq = q.ToString();
		String rt = "";
		int sep = mq.Find(':');
		if (sep < 0)
		{ /* no : */
			int x = StrInt(mq);
			if (x < 0 || x > 23) return "00:00";
			if (mq.GetLength() == 1)
			{
				rt << "0" << mq << ":00";
				return rt;
			}
			rt << mq << ":00";
			return rt;
		}
		String x1 = mq.Mid(0,sep);
		String x2 = mq.Mid(sep);
		while ((sep = x1.Find(':')) != -1) x1.Remove(sep);
		while ((sep = x2.Find(':')) != -1) x2.Remove(sep);

		int hrs = StrInt(x1);
		int min = StrInt(x2);
		if (hrs < 0 || hrs > 23) x1 = "00";
		else if (x1.GetLength() == 1) x1.Insert(0,'0');

		if (min < 0 || min > 59)
		{
			rt << x1 << ":00";
			return rt;
		}
		if (x2.GetLength() == 1) x2.Insert(0,'0');
		rt << x1 << ":" << x2;
		return rt;
	}
	int Filter(int chr) const
	{ /* only accept digits and ':' */
		if(IsDigit(chr) || chr == ':') return chr;
		return 0;
	}
	String increaseMin()
	{
		if (++min > 59)
		{
			min = 0;
			if (++hour>23)
			{
				hour = 0;
				return "00:00";
			}
			if (hour < 10)
			{
				String rt = 0;
				rt << hour << ":00";
				return rt;
			}
			String rt;
			rt << hour << ":00";
			return rt;
		}
		String rt;
		if (hour < 10) rt << "0";
		rt << hour << ":";
		if (min < 10) rt << "0";
		rt << min;
		return rt;
	}
	private:
		int min;
		int hour;
		void setTime(int m, int h) { min = m; hour = h; }
};
typedef TimeInput EditTimeHM;

d:\ultimate++\myapps\countdown\Countdown.h(13) : error C2662: 'TimeInput::setTime' : cannot convert 'this' pointer from 'const TimeInput' to 'TimeInput
	 &'
        Conversion loses qualifiers