OOP2

import java.util.Observable;

import javax.swing.*;

/**

 * This class creates a JPanel using the given course. This JPanel is then a detailed description of said course.

 * @author Maarten Vangeneugden - 1438256

 */

class DetailedCourseView extends AbstractView {

		private Course m_course; // The course of this class.

		public Course course() {

				return m_course;

		}

		private void setCourse(Course course) { // Sets the course, but also triggers to update the panel itself. This is necessary, since the panel will otherwise not be a representation of the course itself.

				m_course = course;

				setContent();

		}

		private JPanel m_panel; // The panel that will represent the course.

		public JPanel panel() {

				return m_panel;

		}

		private void setPanel(JPanel panel) {

				m_panel = panel;

		}

		//There is no public panel setter. The panel can only be changed by modifying the course, since this panel represents the course.

		public DetailedCourseView(Course course) {

			super(course, null);

				setCourse(course);

		}

		/**

		 * Will update the panel of the class according to the given course.

		 * @pre The course of the class is not null.

		 * @post The panel of the class is updated and is now an update representation of the given course.

		 */

		private void setContent() { // Creates the content for this JPanel. Not that it's private; Its functionality may only be triggered by its own instance.

				// First, we handle the common members, since we know the base class can't be smaller than inherited classes.

				JLabel lblName = new JLabel("Naam: " + course().name());

				JLabel lblID = new JLabel("ID: " + Integer.toString(course().ID()));

				JLabel lblStudyPoints = new JLabel("Studiepunten: " + Integer.toString(course().studyPoints()));

				JLabel lblSemester = new JLabel("Semester: " + Integer.toString(course().semester()));

				JLabel lblType = new JLabel(); // We wil fill this in later.

				JLabel lblPass = new JLabel();

				if(course().creditAcquired())

						lblPass.setText("Verworven credit");

				else

						lblPass.setText("Credit niet verworven");

				// Second, we do a RTTI on the given course by checking the instance type. (RTTI = RunTime Type Identification)

				if(course() instanceof MandatoryCourse) {

						lblType.setText("Verplicht vak - Jaar" + Integer.toString(((MandatoryCourse)course()).year()));

				}

				else if(course() instanceof ChoiceCourse) {

						lblType.setText("Keuzevak");

				}

				// Third, we add all the labels to the panel.

				JPanel panel = new JPanel();

				panel.add(lblName);

				panel.add(lblID);

				panel.add(lblStudyPoints);

				panel.add(lblSemester);

				panel.add(lblType);

				panel.add(lblPass);

				setPanel(panel);

		}

		private void update(Observable course, Object info) {

			setContent(course);

		}

}