PowerCommand.cs

namespace ThreeByte.LinkLib.ProjectorLink.Commands
{
    public class PowerCommand : Command
    {
        private PowerStatus _status = PowerStatus.UNKNOWN;
        private Power _cmdDetail;

        public enum Power
        {
            QUERY,
            ON,
            OFF
        }

        public PowerCommand(Power cmd)
        {
            _cmdDetail = cmd;
        }

        internal override string GetCommandString()
        {
            string cmdString = "%1POWR ";

            switch (_cmdDetail)
            {

                case Power.QUERY:
                    cmdString += "?";
                    break;
                case Power.OFF:
                    cmdString += "0";
                    break;
                case Power.ON:
                    cmdString += "1";
                    break;
            }

            return cmdString;
        }

        internal override bool ProcessAnswerString(string a)
        {
            if (!base.ProcessAnswerString(a))
            {
                _status = PowerStatus.UNKNOWN;
                return false;
            }

            if (_cmdDetail == Power.QUERY)
            {
                a = a.Replace("%1POWR=", "");
                int retVal = int.Parse(a);
                if (retVal >= (int)PowerStatus.OFF && retVal <= (int)PowerStatus.WARMUP)
                {
                    _status = (PowerStatus)retVal;
                }
                else
                {
                    _status = PowerStatus.UNKNOWN;
                }
            }

            return true;
        }

        public PowerStatus Status
        {
            get { return _status; }
        }
    }
}