+ /**
+ * 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));
+ Moosique.setEdited();
+ validate();
+ 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));
+ }
+
+ /**
+ * 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);
+ Rectangle r = new Rectangle();
+ r = elem.getBounds(r);
+ coords.remove(r);
+ Moosique.setEdited();
+ validate();
+ repaint();
+ }
+
+ /**
+ * Selects the given note
+ * @param the note to select
+ */
+ public void selectNote(MooNoteElement elem) {
+ selection.add(elem);
+ }
+
+ /**
+ * Deselects the given note
+ * @param the note to deselect
+ */
+ public void deselectNote(MooNoteElement elem) {
+ selection.remove(elem);
+ }
+
+ /**
+ * Deselects all notes.
+ */
+ public void deselectAllNotes() {
+ Iterator it = selection.iterator();
+ while(it.hasNext()) {
+ ((MooNoteElement)it.next()).deselect();
+ }
+ selection.clear();
+ }
+
+ /**
+ * Determines if the given MooNoteElement is the only one in the track view that is selected.
+ * @return if the given element is the only selected one
+ */
+ public boolean isTheOnlySelected(MooNoteElement elem) {
+ Iterator it = selection.iterator();
+ while(it.hasNext()) {
+ if (!it.next().equals(elem)) return false;
+ }
+ return true;
+ }
+
+ /**
+ * Copies the current selection.
+ */
+ public void copySelectedNotes() {
+ copyBuffer = new ArrayList(selection.size());
+ Iterator it = selection.iterator();
+ while(it.hasNext()) {
+ copyBuffer.add(((MooNoteElement)it.next()).getNote().clone());
+ }
+ Collections.sort(copyBuffer);
+ }
+
+ /**
+ * Cuts the current selection.
+ */
+ public void cutSelectedNotes() {
+ copySelectedNotes();
+ removeSelectedNotes();
+ }
+
+ /**
+ * Pastes the current copy buffer at the given timestamp.
+ */
+ public void pasteCopiedNotes() {
+ int row = (popupY - insets.top) / NOTE_HEIGHT;
+ long timestamp = (long)(ticksPerSixteenth * row);
+ if (copyBuffer.size() > 0) {
+ long startTime = ((MooNote)copyBuffer.get(0)).getTick();
+ Iterator it = copyBuffer.iterator();
+ while(it.hasNext()) {
+ MooNote mn = (MooNote)((MooNote)it.next()).clone();
+ mn.setTick(mn.getTick() - startTime + timestamp);
+ addNote(mn);
+ }
+ }
+ }
+
+ /**
+ * Removes the current selection.
+ */
+ public void removeSelectedNotes() {
+ Iterator it = selection.iterator();
+ while(it.hasNext()) {
+ removeNote((MooNoteElement)it.next());
+ }
+ selection.clear();
+ }
+
+ /**
+ * Transposes all selected notes the given number of halftones.
+ */
+ private void transposeSelectedNotes(int halftones) {
+ Iterator it = selection.iterator();
+ while(it.hasNext()) {
+ MooNoteElement elem = (MooNoteElement)it.next();
+ elem.transpose(halftones);
+ }
+ }
+
+ /**
+ * Moves the current selection the given number of ticks.
+ * @param ticks the number of ticks to move the selection.
+ */
+ public void moveSelectedNotes(int ticks) {
+ if (ticks > 0) {
+ // If the selection should be moved downwards, traverses the list in the natural order.
+ Iterator it = selection.iterator();
+ while(it.hasNext()) {
+ MooNoteElement elem = (MooNoteElement)it.next();
+ elem.getNote().setTick(elem.getNote().getTick() + ticks);
+ layoutElement(elem, true);
+ }
+ } else {
+ // If the selection should be moved upwards, traverses the list in the opposite order.
+ ArrayList selectedList = new ArrayList(selection);
+ ListIterator it = selectedList.listIterator(selectedList.size());
+ while(it.hasPrevious()) {
+ MooNoteElement elem = (MooNoteElement)it.previous();
+ elem.getNote().setTick(elem.getNote().getTick() + ticks);
+ layoutElement(elem, true);
+ }
+ }
+ }
+
+ /**
+ * Moves the current selection, depending on the given delta y.
+ * @param y the number of pixels the selection is moved.
+ */
+ public void maybeMoveSelectedNotes(int y) {
+ moveSelectedNotes(ticksPerSixteenth * (y / NOTE_HEIGHT));
+ }
+
+ /**
+ * Shows a popup-menu with options for the current selection of note elements.
+ * @param c the component over which to display the menu
+ * @param x the x-coordinate in which to display the menu
+ * @param y the y-coordinate in which to display the menu
+ */
+ public void showSelectionPopup(Component c, int x, int y) {
+ selPopup.show(c, x, y);
+ }
+
+ /**
+ * 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);