+ // Creates temporary variables
+ MidiEvent note;
+ MooNoteElement elem;
+ int extraHeight = Toolkit.getDefaultToolkit().getScreenSize().height - 150;
+ int x, y, height;
+ int beatsPerSixteenth = Moosique.getSequence().getResolution() / 4;
+ rects = new ArrayList(track.size() / 2);
+
+ // Places note elements
+ Insets insets = getInsets();
+ for (int i = 0; i < track.size(); i++) {
+ note = track.get(i);
+ if (note instanceof MooNote) {
+ // Adds the note element to the note area.
+ MooNote mn = (MooNote)note;
+ elem = new MooNoteElement(this, mn);
+ add(elem);
+
+ // Moves the note element to the appropriate place.
+ x = insets.left;
+ y = insets.top + (int)(mn.getTick() / beatsPerSixteenth) * NOTE_HEIGHT;
+ height = (mn.getDuration() / beatsPerSixteenth) * NOTE_HEIGHT;
+ if (height == 0) height = NOTE_HEIGHT;
+ Rectangle r = new Rectangle(x, y, NOTE_WIDTH, height);
+ while(isOccupied(r)) r.translate(NOTE_WIDTH, 0);
+ elem.setBounds(r);
+ rects.add(r);
+ if (viewLength < (y + height)) viewLength = y + height;
+ }
+ setPreferredSize(new Dimension(VIEW_WIDTH, viewLength + extraHeight));
+ }
+ validate();
+
+ // Creates pop-up menu.
+ popup = new JPopupMenu();
+ menuItem = new JMenuItem("Add...");
+ // menuItem.addActionListener();
+ popup.add(menuItem);
+
+ addMouseListener(new PopupListener());
+ }
+
+ public Track getTrack() {
+ return track;
+ }
+
+ private boolean isOccupied(Rectangle r) {
+ Iterator it = rects.iterator();
+ while (it.hasNext()) {
+ if(r.intersects((Rectangle)it.next())) return true;
+ }
+ return false;
+ }
+
+ public void remove(MooNoteElement elem) {
+ remove((Component)elem);
+ validate();
+ }
+
+ public void paintComponent(Graphics g) {
+ super.paintComponent(g);
+ Graphics2D g2 = (Graphics2D)g;
+ for (int c = 0; c < viewLength || c < getHeight(); c += NOTE_HEIGHT) {
+ for (int r = 0; r < (10 * NOTE_WIDTH); r += NOTE_WIDTH) {
+ box = new Rectangle(r, c, NOTE_WIDTH, NOTE_HEIGHT);
+ g2.setColor(Color.gray);
+ g2.draw(box);
+ }
+ }