private void treeView_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs <object> e)
{
TreeViewItem tvi = (TreeViewItem)e.NewValue;
if (tvi != null)
{
tvi.IsExpanded = !tvi.IsExpanded;
// This should be the label of the course ID
//
StackPanel itemHeader = (StackPanel)((TreeViewItem)((TreeView)sender).SelectedItem).Header;
// Refresh the course path canvas
//
coursePathCanvas.Children.Clear();
coursePathCanvas.Children.Add(dashLine1);
coursePathCanvas.Children.Add(dashLine2);
coursePathCanvas.Children.Add(dashLine3);
listOfTopCourses.Clear();
clearListOfY();
// And the course id take from the label name
//
var courseButton = itemHeader.Children.OfType <Button>().FirstOrDefault();
if (!departmentWindow.isSetProgramme)
{
Course targetCourse = DatabaseConnection.getCourse(courseButton.Content.ToString());
if (targetCourse != null)
{
Utilities.fillCourseInfoDataGrid(courseInfoDataGrid, targetCourse);
// Draw the course path
//
List <Course> relatedPreReq = DatabaseConnection.generateAllRelatedPreRequisites(targetCourse);
relatedPreReq.Insert(0, targetCourse);
foreach (Course course in relatedPreReq)
{
setCoursePath(course.id);
}
}
else
{
Logger.Error("ProgrammeWindow::treeView_SelectedItemChanged() Target Course could not be found in the database.");
}
}
}
}
/// <summary>
/// When a SE course from the TreeView is selected.
/// </summary>
private void seTreeView_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs <object> e)
{
TreeViewItem tvi = (TreeViewItem)e.NewValue;
if (tvi != null)
{
tvi.IsExpanded = !tvi.IsExpanded;
StackPanel itemHeader = (StackPanel)((TreeViewItem)((TreeView)sender).SelectedItem).Header;
var courseId = itemHeader.Children.OfType <Label>().FirstOrDefault();
// Split the label [COURSEID - COURSENAME]
//
char[] delimiter = { '-' };
String[] selectedCourseName = courseId.Content.ToString().Split(delimiter);
if (selectedCourseName[0] != null)
{
selectedCourse = DatabaseConnection.getCourse(selectedCourseName[0].Trim());
// Make sure we have a valid course
//
if (selectedCourse != null)
{
isSetCareer = false;
isSetCourse = true;
isSetProgramme = false;
showProgrammesWindow();
}
else
{
Logger.Error("DepartmentWindow::seTreeView_SelectedItemChanged() Unknown course ID: " + selectedCourseName[0]);
}
}
else
{
Logger.Error("DepartmentWindow::seTreeView_SelectedItemChanged() Unable to resolve course ID: " + selectedCourseName[0]);
}
}
}
private void courseItemAction(object sender, System.Windows.RoutedEventArgs e)
{
Button button = (Button)e.Source;
// Refresh the course path canvas
//
coursePathCanvas.Children.Clear();
coursePathCanvas.Children.Add(dashLine1);
coursePathCanvas.Children.Add(dashLine2);
coursePathCanvas.Children.Add(dashLine3);
listOfTopCourses.Clear();
clearListOfY();
// Draw the course path
//
try
{
Course targetCourse = DatabaseConnection.getCourse(button.Content.ToString());
if (targetCourse != null)
{
Utilities.fillCourseInfoDataGrid(courseInfoDataGrid, targetCourse);
List <Course> relatedPreReq = DatabaseConnection.generateAllRelatedPreRequisites(targetCourse);
relatedPreReq.Insert(0, targetCourse);
foreach (Course course in relatedPreReq)
{
setCoursePath(course.id);
}
}
else
{
Logger.Error("ProgrammeWindow::courseItemAction() Target Course could not be found in the database.");
}
}
catch (Exception ex)
{
Logger.Error("ProgrammeWindow::courseItemAction() " + ex.Message);
}
}
public void setCoursePath(String topCourseId)
{
Course topCourse = DatabaseConnection.getCourse(topCourseId);
if (topCourse == null)
{
return;
}
topCourse.setType(getCourseType(topCourse));
// First sem courses should be in the left
//
double year4StartXLocation1 = Canvas.GetLeft(dashLine3) + CommonInternals.COURSE_BUTTON_TOP_GAP;
double year3StartXLocation1 = Canvas.GetLeft(dashLine2) + CommonInternals.COURSE_BUTTON_TOP_GAP;
double year2StartXLocation1 = Canvas.GetLeft(dashLine1) + CommonInternals.COURSE_BUTTON_TOP_GAP;
double year1StartXLocation1 = CommonInternals.COURSE_BUTTON_TOP_GAP;
// Second sem courses should be in the right
//
double year4StartXLocation2 = coursePathCanvas.Width - CommonInternals.COURSE_BUTTON_TOP_GAP - topCourse.courseButton.Width;
double year3StartXLocation2 = Canvas.GetLeft(dashLine3) - CommonInternals.COURSE_BUTTON_TOP_GAP - topCourse.courseButton.Width;
double year2StartXLocation2 = Canvas.GetLeft(dashLine2) - CommonInternals.COURSE_BUTTON_TOP_GAP - topCourse.courseButton.Width;
double year1StartXLocation2 = Canvas.GetLeft(dashLine1) - CommonInternals.COURSE_BUTTON_TOP_GAP - topCourse.courseButton.Width;
// Course can be taken in any semester - place this in the center
//
double year4StartXLocation0 = Canvas.GetLeft(dashLine3) + ((coursePathCanvas.Width - Canvas.GetLeft(dashLine3)) / 2) - (topCourse.courseButton.Width / 2);
double year3StartXLocation0 = Canvas.GetLeft(dashLine2) + ((Canvas.GetLeft(dashLine3) - Canvas.GetLeft(dashLine2)) / 2) - (topCourse.courseButton.Width / 2);
double year2StartXLocation0 = Canvas.GetLeft(dashLine1) + ((Canvas.GetLeft(dashLine2) - Canvas.GetLeft(dashLine1)) / 2) - (topCourse.courseButton.Width / 2);
double year1StartXLocation0 = (Canvas.GetLeft(dashLine1) / 2) - (topCourse.courseButton.Width / 2);
// Making sure things will not mess up
//
if ((topCourse != null) && (topCourseId != null) && (topCourseId.Length != 0))
{
// Populating the top most course
//
double previousStartX = 0;
double previousStartY = CommonInternals.COURSE_BUTTON_LEFT_GAP;
Course existingCourse = getCourseFromCanvas(topCourse);
if (existingCourse == null)
{
if (topCourse.year == 4)
{
if (topCourse.sem == 1)
{
// Course should be taken in the 1st sem - place this in the left
//
previousStartX = year4StartXLocation1;
}
else if (topCourse.sem == 2)
{
// Course should be taken in the 2nd sem - place this in the right
//
previousStartX = year4StartXLocation2;
}
else
{
// Course can be taken in any semester - place this in the center
//
previousStartX = year4StartXLocation0;
}
for (int i = 0; isCoursePointYExist(previousStartY, collectionOflistOfY[(int)CommonInternals.CourseYear.FOURTH_YEAR]); i++)
{
previousStartY += topCourse.courseButton.Height + CommonInternals.COURSE_BUTTON_LEFT_GAP;
}
collectionOflistOfY[(int)CommonInternals.CourseYear.FOURTH_YEAR].Add(previousStartY);
}
else if (topCourse.year == 3)
{
if (topCourse.sem == 1)
{
previousStartX = year3StartXLocation1;
}
else if (topCourse.sem == 2)
{
previousStartX = year3StartXLocation2;
}
else
{
// Course can be taken in any semester - place this in the center
//
previousStartX = year3StartXLocation0;
}
for (int i = 0; isCoursePointYExist(previousStartY, collectionOflistOfY[(int)CommonInternals.CourseYear.THIRD_YEAR]) == true; i++)
{
previousStartY += topCourse.courseButton.Height + CommonInternals.COURSE_BUTTON_LEFT_GAP;
}
collectionOflistOfY[(int)CommonInternals.CourseYear.THIRD_YEAR].Add(previousStartY);
}
else if (topCourse.year == 2)
{
if (topCourse.sem == 1)
{
previousStartX = year2StartXLocation1;
}
else if (topCourse.sem == 2)
{
previousStartX = year2StartXLocation2;
}
else
{
// Course can be taken in any semester - place this in the center
//
previousStartX = year2StartXLocation0;
}
for (int i = 0; isCoursePointYExist(previousStartY, collectionOflistOfY[(int)CommonInternals.CourseYear.SECOND_YEAR]) == true; i++)
{
previousStartY += topCourse.courseButton.Height + CommonInternals.COURSE_BUTTON_LEFT_GAP;
}
collectionOflistOfY[(int)CommonInternals.CourseYear.SECOND_YEAR].Add(previousStartY);
}
else if (topCourse.year == 1)
{
if (topCourse.sem == 1)
{
previousStartX = year1StartXLocation1;
}
else if (topCourse.sem == 2)
{
previousStartX = year1StartXLocation2;
}
else
{
// Course can be taken in any semester - place this in the center
//
previousStartX = year1StartXLocation0;
}
for (int i = 0; isCoursePointYExist(previousStartY, collectionOflistOfY[(int)CommonInternals.CourseYear.FIRST_YEAR]) == true; i++)
{
previousStartY += topCourse.courseButton.Height + CommonInternals.COURSE_BUTTON_LEFT_GAP;
}
collectionOflistOfY[(int)CommonInternals.CourseYear.FIRST_YEAR].Add(previousStartY);
}
coursePathCanvas.Children.Add(topCourse.courseButton);
Canvas.SetLeft(topCourse.courseButton, previousStartX);
Canvas.SetTop(topCourse.courseButton, previousStartY);
listOfTopCourses.Add(topCourse);
}
else
{
previousStartX = Canvas.GetLeft(existingCourse.courseButton);
previousStartY = Canvas.GetTop(existingCourse.courseButton);
}
topCourse.programmeWindow = this;
Rect topcourseButtonRect = Utilities.GetRectOfObject(topCourse.courseButton);
Point relativePointEllipse2Left = new Point(previousStartX, previousStartY + (topcourseButtonRect.Height / 2));
Point relativePointEllipse2Right = new Point(previousStartX + (topcourseButtonRect.Width), previousStartY + (topcourseButtonRect.Height / 2));
// Populating the course path
//
List <Course> courses = DatabaseConnection.getPrerequisiteCourses(topCourse.id);
Line[] connector = new Line[courses.Count];
for (int i = 0; i < courses.Count; i++)
{
Course course = courses.ElementAt(i);
course.setType(getCourseType(course));
previousStartY = CommonInternals.COURSE_BUTTON_LEFT_GAP;
Course existingCourse2 = getCourseFromCanvas(course);
if (existingCourse2 == null)
{
if (course.year == 4)
{
// Set the X location
//
if (course.sem == 1)
{
previousStartX = year4StartXLocation1;
}
else if (course.sem == 2)
{
previousStartX = year4StartXLocation2;
}
else
{
// Course can be taken in any semester - place this in the center
//
previousStartX = year4StartXLocation0;
}
// Move new courses to the end of the list - descending
//
while (isCoursePointYExist(previousStartY, collectionOflistOfY[(int)CommonInternals.CourseYear.FOURTH_YEAR]))
{
previousStartY += course.courseButton.Height + CommonInternals.COURSE_BUTTON_LEFT_GAP;
}
collectionOflistOfY[(int)CommonInternals.CourseYear.FOURTH_YEAR].Add(previousStartY);
}
else if (course.year == 3)
{
if (course.sem == 1)
{
previousStartX = year3StartXLocation1;
}
else if (course.sem == 2)
{
previousStartX = year3StartXLocation2;
}
else
{
// Course can be taken in any semester - place this in the center
//
previousStartX = year3StartXLocation0;
}
// Move new courses to the end of the list - descending
//
while (isCoursePointYExist(previousStartY, collectionOflistOfY[(int)CommonInternals.CourseYear.THIRD_YEAR]))
{
previousStartY += course.courseButton.Height + CommonInternals.COURSE_BUTTON_LEFT_GAP;
}
collectionOflistOfY[(int)CommonInternals.CourseYear.THIRD_YEAR].Add(previousStartY);
}
else if (course.year == 2)
{
if (course.sem == 1)
{
previousStartX = year2StartXLocation1;
}
else if (course.sem == 2)
{
previousStartX = year2StartXLocation2;
}
else
{
// Course can be taken in any semester - place this in the center
//
previousStartX = year2StartXLocation0;
}
// Move new courses to the end of the list - descending
//
while (isCoursePointYExist(previousStartY, collectionOflistOfY[(int)CommonInternals.CourseYear.SECOND_YEAR]))
{
previousStartY += course.courseButton.Height + CommonInternals.COURSE_BUTTON_LEFT_GAP;
}
collectionOflistOfY[(int)CommonInternals.CourseYear.SECOND_YEAR].Add(previousStartY);
}
else if (course.year == 1)
{
if (course.sem == 1)
{
previousStartX = year1StartXLocation1;
}
else if (course.sem == 2)
{
previousStartX = year1StartXLocation2;
}
else
{
// Course can be taken in any semester - place this in the center
//
previousStartX = year1StartXLocation0;;
}
// Move new courses to the end of the list - descending
//
while (isCoursePointYExist(previousStartY, collectionOflistOfY[(int)CommonInternals.CourseYear.FIRST_YEAR]))
{
previousStartY += course.courseButton.Height + CommonInternals.COURSE_BUTTON_LEFT_GAP;
}
collectionOflistOfY[(int)CommonInternals.CourseYear.FIRST_YEAR].Add(previousStartY);
}
coursePathCanvas.Children.Add(course.courseButton);
Canvas.SetLeft(course.courseButton, previousStartX);
Canvas.SetTop(course.courseButton, previousStartY);
course.programmeWindow = this;
listOfTopCourses.Add(course);
}
else
{
previousStartX = Canvas.GetLeft(existingCourse2.courseButton);
previousStartY = Canvas.GetTop(existingCourse2.courseButton);
course = existingCourse2;
}
// Sets the location where to start drawing the Line connecting the courses
//
Point relativePointEllipse1 = new Point(previousStartX + (topcourseButtonRect.Width), previousStartY + (topcourseButtonRect.Height / 2));
// For now, we do not need to create a course connecting line of both courses are in the same year.
//
if (topCourse.year != course.year)
{
var points = Utilities.CreateLineWithArrowPointCollection(new Point(relativePointEllipse1.X, relativePointEllipse1.Y),
new Point(relativePointEllipse2Left.X, relativePointEllipse2Left.Y),
1.25);
var polygon = new Polygon();
polygon.Points = points;
polygon.Fill = Brushes.Black;
coursePathCanvas.Children.Add(polygon);
}
/*else
* {
* // This is when the pre-requisite course is within the same year level as the target course
* //
* var courseConnectorePolyline = new Polyline();
* courseConnectorePolyline.Stroke = Brushes.Black;
* courseConnectorePolyline.StrokeThickness = 1;
*
* PointCollection polygonPoints = new PointCollection();
*
* if(course.sem == 1)
* {
* // 3 points for pre-req which is in the previous sem
* //
* Point[] points = new Point[3];
*
* points[0] = new Point(relativePointEllipse1.X, relativePointEllipse1.Y);
* points[1] = new Point(relativePointEllipse1.X + (course.courseButton.Width / 4) - 25, relativePointEllipse1.Y);
* points[2] = new Point(Canvas.GetLeft(topCourse.courseButton) + (topCourse.courseButton.Width / 2), Canvas.GetTop(topCourse.courseButton) + topCourse.courseButton.Height);
* //points[3] = new Point(Canvas.GetLeft(topCourse.courseButton) + topCourse.courseButton.Width, Canvas.GetTop(topCourse.courseButton) + (topCourse.courseButton.Height/2));
*
* polygonPoints.Add(points[0]);
* polygonPoints.Add(points[1]);
* polygonPoints.Add(points[2]);
* //polygonPoints.Add(points[3]);
* }
* else if (course.sem == 2)
* {
* // 4 points for pre-req which is in the previous sem
* //
* Point[] points = new Point[2];
*
* points[0] = new Point(previousStartX + (course.courseButton.Width / 2), previousStartY + topcourseButtonRect.Height);
* points[1] = new Point(relativePointEllipse1.X + (topCourse.courseButton.Width / 2), relativePointEllipse1.Y);
* polygonPoints.Add(points[0]);
* polygonPoints.Add(points[1]);
* }
*
* courseConnectorePolyline.Points = polygonPoints;
*
* coursePathCanvas.Children.Add(courseConnectorePolyline);
* }
*/
}
}
}