+ // Calculates coordinates.
+ x = insets.left;
+ y = insets.top + (int)(mn.getTick() / ticksPerSixteenth) * NOTE_HEIGHT;
+ height = (mn.getDuration() / ticksPerSixteenth) * NOTE_HEIGHT;
+ if (height == 0) height = NOTE_HEIGHT;
+ r = new Rectangle(x, y, NOTE_WIDTH, height);
+
+ // Places the element in the appropriate place.
+ while(isOccupied(r)) r.translate(NOTE_WIDTH, 0);
+ elem.setBounds(r);
+ rects.add(r);
+ if (viewLength < (y + height)){
+ viewLength = y + height;
+ if(old)setPreferredSize(new Dimension(VIEW_WIDTH, viewLength + extraHeight));
+ }
+ }
+
+ /**
+ * Returns the track of this view.
+ * @return the track of this view
+ */
+ public Track getTrack() {
+ return track;
+ }
+
+ /**
+ * Returns the title of this view.
+ * @return the title of this view
+ */
+ public MooTrackTitle getTitle() {
+ return title;
+ }
+
+ /**
+ * Checks if the element can be fully drawn as this position without inteferring with other elements.
+ * @return true if the position is occupied.
+ */
+ private boolean isOccupied(Rectangle r) {
+ Iterator it = rects.iterator();
+ while (it.hasNext()) {
+ if(r.intersects((Rectangle)it.next())) return true;
+ }
+ return false;
+ }
+
+ /**
+ * Adds the given note to the current track, and visualises it.
+ * @param mn the note to add
+ */
+ public void addNote(MooNote mn) {
+ mn.addTo(track);
+ MooNoteElement elem = new MooNoteElement(this, mn);
+ add(elem);
+ layoutElement(elem, false);
+ setPreferredSize(new Dimension(VIEW_WIDTH, viewLength + extraHeight));
+ repaint();
+ }
+
+ /**
+ * Removes the given note element from the view and its note from the current track.
+ * @param elem the note element to remove
+ */
+ public void removeNote(MooNoteElement elem) {
+ elem.getNote().removeFrom(track);
+ remove(elem);
+ elem.getNote().removeFrom(track);
+ repaint();
+ }
+
+ /**
+ * Adds a standard note to this track.
+ */
+ private void addStandardNote() {
+ int row = (popupY - insets.top) / NOTE_HEIGHT;
+ long timestamp = (long)(ticksPerSixteenth * row);
+ addNote(new MooNote(title.getChannel(), 60, 100, timestamp, Moosique.getSequence().getResolution() / 4));
+ }
+
+ /**
+ * Deselects all notes.
+ */
+ public void addSelected(MooNoteElement elem) {
+ selected.add(elem);
+ }
+
+ /**
+ * Deselects all notes.
+ */
+ public void removeSelected(MooNoteElement elem) {
+ selected.remove(selected.indexOf(elem));
+ }
+
+ /**
+ * Deselects all notes.
+ */
+ public void deselectAll() {
+ Iterator it = selected.iterator();
+ while(it.hasNext()) {
+ ((MooNoteElement)it.next()).deselect();
+ }
+ selected.clear();
+ }
+
+ /**
+ * Draws the grid that is on the background.
+ * @param g The Graphics object used to draw the grid.
+ */
+ 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);
+ }
+ }
+ }
+
+ /**
+ * The adapter used to listen on mouse actions
+ */
+ class MAdapter extends MouseAdapter {
+
+ /**
+ * Deselects all note on click, adds a standard note on double click.
+ */
+ public void mouseClicked(MouseEvent e) {
+ deselectAll();
+ if (e.getClickCount() == 2) {
+ popupY = e.getY();
+ addStandardNote();
+ }
+ }
+
+ public void mousePressed(MouseEvent e) {
+ maybeShowPopup(e);
+ }
+
+ public void mouseReleased(MouseEvent e) {
+ maybeShowPopup(e);
+ }
+
+ /**
+ * Shows the menu if an OS-specific popup-trigger was activated.
+ */
+ private void maybeShowPopup(MouseEvent e) {
+ if (e.isPopupTrigger()) {
+ popupY = e.getY();
+ popup.show(e.getComponent(), e.getX(), e.getY());
+ }
+ }
+
+ /**
+ * Grabs the focus when the mouse has entered.
+ */
+ public void mouseEntered(MouseEvent e) {
+ // Moosique.setActiveChannel(track.getChannel());
+ grabFocus();
+ }
+ }
+
+ /**
+ * Listens on actions on the popupmenu and executes the appropriate action.
+ */
+ class PopupListener implements ActionListener {
+ public void actionPerformed(ActionEvent e) {
+ Object source = e.getSource();
+ if (source == popupAdd) {
+ addStandardNote();
+ }
+ // new MooNote(int channel, int pitch, int velocity, long timestamp, int duration)
+ }