DeleteEduProgramGroupCmd.cs :  » Business-Application » Timetabler » OpenCTT » C# / CSharp Open Source

#region Open Course Timetabler - An application for school and university course timetabling
//
// Author:
//   Ivan urak (mailto:Ivan.Curak@fesb.hr)
//
// Copyright (c) 2007 Ivan urak, Split, Croatia
//
// http://www.openctt.org
//
//This file is part of Open Course Timetabler.
//
//Open Course Timetabler 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.
//
//Open Course Timetabler 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
//Open Course Timetabler; if not, write to the Free Software Foundation, Inc., 51 Franklin St,
//Fifth Floor, Boston, MA  02110-1301  USA

#endregion


using System;
//using System.Collections;

namespace OpenCTT{
  /// <summary>
  /// Summary description for DeleteEduProgramGroupCmd.
  /// </summary>
  public class DeleteEduProgramGroupCmd:AbstractCommand
  {
    private EduProgramGroup _epg;
    private int _numOfUnallocatedLessonsStep;

    public DeleteEduProgramGroupCmd(EduProgramGroup epg,int numOfUnallocatedLessonsStep)
    {
      _epg=epg;
      _numOfUnallocatedLessonsStep=numOfUnallocatedLessonsStep;
    }

    public override void doit()
    {      
      _epg.Remove();

      foreach(EduProgram ep in _epg.Nodes)
      {
        foreach(Course course in ep.Nodes)
        {
          foreach(Course deepCourse in course.getCoursesToHoldTogetherList())
          {
            EduProgram deepEP=(EduProgram)deepCourse.Parent;
            EduProgramGroup deepEPG = (EduProgramGroup)deepEP.Parent;                

            if(deepEPG!=_epg)
            {
              deepCourse.getCoursesToHoldTogetherList().Remove(course);              
            }
          }
        }
      }



      AppForm.getAppForm().getCoursesTreeView().SelectedNode=AppForm.CURR_OCTT_DOC.CoursesRootNode;
      AppForm.CURR_OCTT_DOC.decrUnallocatedLessonsCounter(_numOfUnallocatedLessonsStep);
      AppForm.getAppForm().getStatusBarPanel2().Text=AppForm.CURR_OCTT_DOC.getNumOfUnallocatedLessonsStatusText();

      AppForm.getAppForm().getTreeTabControl().SelectedIndex=0;
    }

    public override void undo()
    {
      AppForm.CURR_OCTT_DOC.CoursesRootNode.Nodes.Add(_epg);

      foreach(EduProgram ep in _epg.Nodes)
      {
        foreach(Course course in ep.Nodes)
        {
          foreach(Course deepCourse in course.getCoursesToHoldTogetherList())
          {
            EduProgram deepEP=(EduProgram)deepCourse.Parent;
            EduProgramGroup deepEPG = (EduProgramGroup)deepEP.Parent;                

            if(deepEPG!=_epg)
            {
              deepCourse.getCoursesToHoldTogetherList().Add(course);              
            }
          }
        }
      }

      AppForm.getAppForm().getCoursesTreeView().SelectedNode=_epg;
      AppForm.CURR_OCTT_DOC.incrUnallocatedLessonsCounter(_numOfUnallocatedLessonsStep);
      AppForm.getAppForm().getStatusBarPanel2().Text=AppForm.CURR_OCTT_DOC.getNumOfUnallocatedLessonsStatusText();

      AppForm.getAppForm().getTreeTabControl().SelectedIndex=0;      
    }

    public override void redo()
    {
      doit();      
    }
  }
}