public void LoadLessons()
{
m_reader = new XmlTextReader(m_fileName);
XmlDocument xml = new XmlDocument();
xml.Load(m_reader);
XmlNodeList nodes = xml.GetElementsByTagName("Lessons");
if ((nodes.Item(0).Attributes["Count"].Value.Equals("0")))
return;
foreach (XmlNode node in nodes.Item(0).ChildNodes)
{
Lecturer lect = null;
Module mod = null;
Room room = null;
Group group = null;
int day = 0;
int time = 0;
int num = 0;
foreach (XmlNode data in node.ChildNodes)
{
try
{
if (data.Name.Equals("Lecturer"))
{
num = int.Parse(data.InnerText);
if (num > -1)
lect = DataCollection.Instance.Lecturers[num];
}
else if (data.Name.Equals("Module"))
{
num = int.Parse(data.InnerText);
if (num > -1)
mod = DataCollection.Instance.Modules[num];
}
else if (data.Name.Equals("Room"))
{
num = int.Parse(data.InnerText);
if (num > -1)
room = DataCollection.Instance.Rooms[num];
}
else if (data.Name.Equals("Group"))
{
num = int.Parse(data.InnerText);
if (num > -1)
group = DataCollection.Instance.Groups[num];
}
else if (data.Name.Equals("Day"))
{
day = int.Parse(data.InnerText);
}
else if (data.Name.Equals("Time"))
{
time = int.Parse(data.InnerText);
}
if (lect != null || mod != null || room != null || group != null)
{
Lesson lesson = new Lesson();
lesson.Lecturer = lect;
lesson.Module = mod;
lesson.Room = room;
lesson.Group = group;
lesson.Day = day;
lesson.Time = time;
DataCollection.Instance.Add(lesson);
}
}
catch
{
return;
}
}
}
}
private void Panel_DragDrop(object sender, DragEventArgs e)
{
GridPanel gPanel = (GridPanel)sender;
Lesson lesson = new Lesson();
/*****************************************************************************************************************/
if (e.Data.GetData(typeof(Lesson)) is Lesson)
{
Lesson oldLesson = (Lesson)e.Data.GetData(typeof(Lesson));
// Move
if (e.Effect == DragDropEffects.Move)
{
GridPanel gp = (GridPanel)tlpTimetable.GetControlFromPosition(oldLesson.Time, oldLesson.Day);
if (gp.LessonData != oldLesson)
{
DataCollection.Instance.Remove(oldLesson);
gp.LessonData.Lecturer = null;
gp.LessonData.Module = null;
gp.LessonData.Room = null;
gp.LessonData.Group = null;
gp.UpdateText();
}
}
gPanel.LessonData = oldLesson;
}
else
{
if (e.Data.GetData(typeof(Lecturer)) is Lecturer && m_data is Lecturer)
{
MessageBox.Show("Cannot add Lecturer to a Lecturer's Timetable", "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
else if (e.Data.GetData(typeof(Module)) is Module && m_data is Module)
{
MessageBox.Show("Cannot add Module to a Module's Timetable", "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
else if (e.Data.GetData(typeof(Room)) is Room && m_data is Room)
{
MessageBox.Show("Cannot add Room to a Room's Timetable", "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
else if (e.Data.GetData(typeof(Group)) is Group && m_data is Group)
{
MessageBox.Show("Cannot add Group to a Group's Timetable", "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (e.Data.GetData(typeof(Lecturer)) is Lecturer)
{
Lecturer lect = (Lecturer)e.Data.GetData(typeof(Lecturer));
gPanel.LessonData.Lecturer = lect;
}
else if (e.Data.GetData(typeof(Module)) is Module)
{
Module mod = (Module)e.Data.GetData(typeof(Module));
gPanel.LessonData.Module = mod;
}
else if (e.Data.GetData(typeof(Room)) is Room)
{
Room room = (Room)e.Data.GetData(typeof(Room));
gPanel.LessonData.Room = room;
}
else if (e.Data.GetData(typeof(Group)) is Group)
{
Group group = (Group)e.Data.GetData(typeof(Group));
gPanel.LessonData.Group = group;
}
if (m_data is Lecturer)
{
gPanel.LessonData.Lecturer = (Lecturer)m_data;
}
else if (m_data is Module)
{
gPanel.LessonData.Module = (Module)m_data;
}
else if (m_data is Room)
{
gPanel.LessonData.Room = (Room)m_data;
}
else if (m_data is Group)
{
gPanel.LessonData.Group = (Group)m_data;
}
}
lesson = gPanel.LessonData;
if(DataCollection.Instance.DoesLessonClash(lesson))
{
MessageBox.Show("Unable to add lesson. Make sure nothing is timetabled for the same lesson.\nE.g. Lecturers booked for the same room at the same time.", "ERROR: DOUBLE BOOKING DETECTED", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (DataCollection.Instance.FindLesson(lesson, lesson.Time, lesson.Day) == null)
{
DataCollection.Instance.Add(lesson);
}
else
{
int i = DataCollection.Instance.Lessons.IndexOf(lesson);
DataCollection.Instance.Lessons[i] = lesson;
}
gPanel.UpdateText();
ChangeColours(m_colour);
}
public void Add(Lesson lesson)
{
Lessons.Add(lesson);
}
public void Remove(Lesson lesson)
{
if (Lessons.Contains(lesson))
Lessons.Remove(lesson);
}
public void Insert(Lesson lesson, int index)
{
Lessons.Insert(index, lesson);
}
public Lesson FindLesson(Lesson data, int time, int day)
{
foreach (Lesson lesson in Lessons)
{
if (lesson == data && (lesson.Time == time && lesson.Day == day))
{
return lesson;
}
}
return null;
}
/// <summary>
/// Check if a lesson clashes with another.
/// For example, 2 lecturers booked in the same room.
/// </summary>
/// <param name="lesson">Lesson to check</param>
/// <returns></returns>
public bool DoesLessonClash(Lesson lesson)
{
foreach (Lesson l in Lessons)
{
if ((lesson.Lecturer != null && lesson.Lecturer != l.Lecturer) && (lesson.Room != null && lesson.Room == l.Room) && (lesson.Day == l.Day && l.Time == l.Day))
{
return true;
}
else if ((lesson.Module != null && lesson.Module != l.Module) && (lesson.Room != null && lesson.Room == l.Room) && (lesson.Day == l.Day && l.Time == l.Day))
{
return true;
}
else if ((lesson.Room != null && lesson.Room != l.Room) && (lesson.Lecturer != null && lesson.Lecturer == l.Lecturer) && (lesson.Day == l.Day && l.Time == l.Day))
{
return true;
}
else if ((lesson.Room != null && lesson.Room != l.Room) && (lesson.Group != null && lesson.Group == l.Group) && (lesson.Day == l.Day && l.Time == l.Day))
{
return true;
}
else if ((lesson.Room != null && lesson.Group != l.Group) && (lesson.Group != null && lesson.Room == l.Room) && (lesson.Day == l.Day && l.Time == l.Day))
{
return true;
}
}
return false;
}
