SetCoursesToHoldTogetherCmd.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 SetCoursesToHoldTogetherCmd.
  /// </summary>
  public class SetCoursesToHoldTogetherCmd:AbstractCommand
  {
    private Course _course;
    private ArrayList _newCoursesToHoldTogetherList;

    private ArrayList _forUndoRedoList;

    private int _incrUnallocatedLessons;
    private int _decrUnallocatedLessons;

    public SetCoursesToHoldTogetherCmd(Course course,ArrayList newCoursesToHoldTogetherList)
    {
      _course=course;
      _newCoursesToHoldTogetherList=newCoursesToHoldTogetherList;

      _incrUnallocatedLessons=_course.getNumberOfLessonsPerWeek()*_course.getCoursesToHoldTogetherList().Count;
      _decrUnallocatedLessons=_course.getNumberOfLessonsPerWeek()*_newCoursesToHoldTogetherList.Count;

    }

    public override void doit()
    {      
      AppForm.CURR_OCTT_DOC.incrUnallocatedLessonsCounter(_incrUnallocatedLessons);
      AppForm.CURR_OCTT_DOC.decrUnallocatedLessonsCounter(_decrUnallocatedLessons);
      AppForm.getAppForm().getStatusBarPanel2().Text=AppForm.CURR_OCTT_DOC.getNumOfUnallocatedLessonsStatusText();
    
      _forUndoRedoList = new ArrayList();

      foreach(Course oldCourse in _course.getCoursesToHoldTogetherList())
      {
                ArrayList oldList=(ArrayList)oldCourse.getCoursesToHoldTogetherList().Clone();
                ArrayList newList = new ArrayList();
        Object [] oneItem= new Object[3];
        oneItem[0]=oldCourse;
                oneItem[1]=oldList;
                oneItem[2]=newList;
        _forUndoRedoList.Add(oneItem);
        
        oldCourse.setCoursesToHoldTogetherList(new ArrayList());
      }
      
      ArrayList oldList2=(ArrayList)_course.getCoursesToHoldTogetherList().Clone();
      ArrayList newList2 = (ArrayList)_newCoursesToHoldTogetherList.Clone();
      Object [] oneItem2= new Object[3];
      oneItem2[0]=_course;
      oneItem2[1]=oldList2;
      oneItem2[2]=newList2;
      _forUndoRedoList.Add(oneItem2);
      
      _course.setCoursesToHoldTogetherList(_newCoursesToHoldTogetherList);
      //
      foreach(Course courseFromList in _course.getCoursesToHoldTogetherList())
      {
        foreach(Course deepCourse in courseFromList.getCoursesToHoldTogetherList())
        {
          ArrayList oldList3=(ArrayList)deepCourse.getCoursesToHoldTogetherList().Clone();
          ArrayList newList3 = new ArrayList();
          Object [] oneItem3= new Object[3];
          oneItem3[0]=deepCourse;
          oneItem3[1]=oldList3;
          oneItem3[2]=newList3;
          _forUndoRedoList.Add(oneItem3);
          
          deepCourse.setCoursesToHoldTogetherList(new ArrayList());
        }

        ArrayList thisCourseList = new ArrayList();
        thisCourseList.Add(_course);

        foreach(Course courseInList22 in _course.getCoursesToHoldTogetherList())
        {
          if(courseInList22!=courseFromList)thisCourseList.Add(courseInList22);
        }

        ArrayList oldList4=(ArrayList)courseFromList.getCoursesToHoldTogetherList().Clone();
        ArrayList newList4 = (ArrayList)thisCourseList.Clone();
        Object [] oneItem4= new Object[3];
        oneItem4[0]=courseFromList;
        oneItem4[1]=oldList4;
        oneItem4[2]=newList4;
        _forUndoRedoList.Add(oneItem4);
        
        courseFromList.setCoursesToHoldTogetherList(thisCourseList);
      }
    }

    public override void undo()
    {      
      AppForm.CURR_OCTT_DOC.incrUnallocatedLessonsCounter(_decrUnallocatedLessons);
      AppForm.CURR_OCTT_DOC.decrUnallocatedLessonsCounter(_incrUnallocatedLessons);
      AppForm.getAppForm().getStatusBarPanel2().Text=AppForm.CURR_OCTT_DOC.getNumOfUnallocatedLessonsStatusText();
    
      int count=_forUndoRedoList.Count;

      for(int n=0;n<count;n++)
      {
        Object [] oneItem = (Object [])_forUndoRedoList[count-1-n];
        
        Course course=(Course)oneItem[0];        
        ArrayList oldList = (ArrayList)oneItem[1];
        course.setCoursesToHoldTogetherList(oldList);
      }

      AppForm.getAppForm().getCoursesTreeView().SelectedNode=_course;
      AppForm.getAppForm().getTreeTabControl().SelectedIndex=0;
    }

    public override void redo()
    {      
      AppForm.CURR_OCTT_DOC.incrUnallocatedLessonsCounter(_incrUnallocatedLessons);
      AppForm.CURR_OCTT_DOC.decrUnallocatedLessonsCounter(_decrUnallocatedLessons);
      AppForm.getAppForm().getStatusBarPanel2().Text=AppForm.CURR_OCTT_DOC.getNumOfUnallocatedLessonsStatusText();
    
      foreach(Object [] oneItem in _forUndoRedoList)
      {
        Course course=(Course)oneItem[0];
        ArrayList newList = (ArrayList)oneItem[2];
        course.setCoursesToHoldTogetherList(newList);
      }

      AppForm.getAppForm().getCoursesTreeView().SelectedNode=_course;
      AppForm.getAppForm().getTreeTabControl().SelectedIndex=0;
    }
    
  }
}