AdvanceTimeForm.cs

/*
Maneubo is an application that provides a virtual maneuvering board and target
motion analysis.

http://www.adammil.net/Maneubo
Copyright (C) 2011-2020 Adam Milazzo

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/
using System;
using System.Windows.Forms;

namespace Maneubo
{
  partial class AdvanceTimeForm : DataForm
  {
    public AdvanceTimeForm()
    {
      InitializeComponent();
    }

    public TimeSpan Time
    {
      get { return _time; }
      set
      {
        txtTime.Text = ManeuveringBoard.GetTimeString(value);
        _time = value;
      }
    }

    void btnOK_Click(object sender, EventArgs e)
    {
      string timeStr = txtTime.Text.Trim();
      bool negative = false, relative;
      if(timeStr.Length != 0 && timeStr[0] == '-')
      {
        timeStr  = timeStr.Substring(1);
        negative = true;
      }

      TimeSpan time;
      if(!TryParseTime(timeStr, out time, out relative) || (relative & negative))
      {
        ShowInvalidTime(txtTime.Text, false, true);
        return;
      }
      Time = negative ? -time : time;
      DialogResult = DialogResult.OK;
    }

    TimeSpan _time;
  }
}