DeleteCourseCmd.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.Windows.Forms;

namespace OpenCTT{
  /// <summary>
  /// Summary description for DeleteCourseCmd.
  /// </summary>
  public class DeleteCourseCmd:AbstractCommand
  {
    private Course _course;
    private EduProgram _ep;

    public DeleteCourseCmd(Course course)
    {
      _course=course;
      _ep = (EduProgram)_course.Parent;
    }

    public override void doit()
    {
      _ep.removeCourseFromUnallocatedLessonsModelAndView(_course,AppForm.getAppForm().getUnallocatedLessonsListView());
      _ep.Nodes.Remove(_course);
      AppForm.getAppForm().getCoursesTreeView().SelectedNode=_ep;
      AppForm.getAppForm().getCoursesTreeView().SelectedNode.EnsureVisible();
      AppForm.getAppForm().getStatusBarPanel2().Text=AppForm.CURR_OCTT_DOC.getNumOfUnallocatedLessonsStatusText();

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

    public override void undo()
    {
      _ep.Nodes.Add(_course);
      AppForm.getAppForm().getCoursesTreeView().SelectedNode=_course;
      _ep.Expand();
      AppForm.getAppForm().getCoursesTreeView().SelectedNode.EnsureVisible();
      
      foreach(Course course in _course.getCoursesToHoldTogetherList())
      {
        course.getCoursesToHoldTogetherList().Add(_course);
      }
      
      for(int k=0;k<_course.getNumberOfLessonsPerWeek();k++) 
      {
        if(_course.getCoursesToHoldTogetherList().Count==0)
        {
          AppForm.CURR_OCTT_DOC.incrUnallocatedLessonsCounter(1);
        }
        
        ListViewItem lvi=new ListViewItem();
        lvi.Tag=_course;
        _ep.getUnallocatedLessonsList().Add(lvi);  
        
        string [] courseTeacher = new string[2];
        courseTeacher[0]=_course.getFullName();          
        courseTeacher[1]=_course.getTeacher().getLastName()+" "+_course.getTeacher().getName();

        ListViewItem lviGUI=new ListViewItem(courseTeacher);
        lviGUI.Tag=_course;          
        lvi.EnsureVisible();

        AppForm.getAppForm().getUnallocatedLessonsListView().Items.Add(lviGUI);
        
      }      
      
      AppForm.getAppForm().getStatusBarPanel2().Text=AppForm.CURR_OCTT_DOC.getNumOfUnallocatedLessonsStatusText();

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

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