+ public static final int NOTE_HEIGHT = 10;
+ public static final int NOTE_WIDTH = 40;
+ private int trackLength;
+
+ public NoteArea(Track track) {
+ // Configuring panel
+ setLayout(null);
+ trackLength = 140;
+ setPreferredSize(new Dimension(200, 140 * NOTE_HEIGHT));
+
+ // Temporary variables
+ MidiEvent note;
+ MooNoteElement elem;
+ int x, y, height;
+
+ // Placing 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(mn);
+ add(elem);
+
+ // Moves the note element to the appropriate place.
+ x = insets.left;
+ y = insets.top + (int)(mn.getTick() / 24) * NOTE_HEIGHT;
+ height = (mn.getDuration() / 24) * NOTE_HEIGHT;
+ if (height == 0) height = NOTE_HEIGHT;
+ while(findComponentAt(x, y) instanceof MooNoteElement ||
+ findComponentAt(x, y + height - 1) instanceof MooNoteElement) x += NOTE_WIDTH;
+ elem.setBounds(x, y, NOTE_WIDTH, height);
+ if (viewLength < (y + height)) viewLength = y + height;
+ }
+ setPreferredSize(new Dimension(200,viewLength));
+ }
+ validate();