/*******************************
* Name: Huy Nguyen             *
* Lab #5                       *
* Fall 1998, ICS 52            *
********************************/


// ListScrollPane.java -- ICS 52 homework #5 -- Fall, 1998

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;
import SAO.*;

class ListScrollPane extends List
{
    private StudentSchedule schedule;
    boolean sorted;
    int selectedIndex;
    private List list;

    public ListScrollPane(StudentSchedule schedule, boolean sorted)
    {
        this.schedule = schedule;
        this.sorted = sorted;
        if ( sorted )
            AddSortedSchedule();
        else
            AddUnsortedSchedule();
    }

    class CourseListener implements ActionListener
    {
        public void actionPerformed( ActionEvent event )
        {
            ListScrollPane.this.selectedIndex = ListScrollPane.this.getSelectedIndex();

        }
    }

    public void setSchedule( StudentSchedule schedule )
    {
        this.schedule = schedule;
        AddUnsortedSchedule();
    }
    public void AddUnsortedSchedule()
    {
        this.removeAll();
        Sort s = new Sort();
        s.sortByCourse(schedule);
        Enumeration e = schedule.getAllCourses();
        while(e.hasMoreElements())
            this.addItem(((CourseInfo)e.nextElement()).toString());
        this.addActionListener( new CourseListener());
    }

    public void AddSortedSchedule()
    {
        this.removeAll();
        Sort s = new Sort();
        s.sortByQuarter(schedule);
        Enumeration e = schedule.getAllCourses();
        while(e.hasMoreElements())
            this.addItem(((CourseInfo)e.nextElement()).toString());
        this.addActionListener( new CourseListener());
    }
}