import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+import javax.sound.midi.*;
+import java.util.*;
-/*
+/**
+ * Graphical representation of a MIDI track.
*
- *
- * @author Andersson, Andreen, Lanneskog, Pehrson
+ * @author Andersson , Andreen, Lanneskog, Pehrson
* @version 1
*/
-
-public class MooTrackView {
- /*
- * Creates
+public class MooTrackView extends JPanel {
+
+ private Track track;
+ private MooTrackTitle title;
+ private Rectangle box;
+
+ private JPopupMenu popup;
+ private JMenuItem popupAdd;
+ private ArrayList rects;
+ private Insets insets;
+ private int ticksPerSixteenth, popupY = 0;
+ protected static int viewLength = 0;
+ protected static int extraHeight = 0;
+ public static final int NOTE_HEIGHT = 10, NOTE_WIDTH = 40, VIEW_WIDTH = 200;
+
+ public MooTrackView (Track track, MooTrackTitle title) {
+ super(true);
+ this.track = track;
+ this.title = title;
+ insets = getInsets();
+
+ // Configures panel
+ setBackground(Color.white);
+ setBorder(BorderFactory.createLineBorder(Color.black));
+ setLayout(null);
+ setPreferredSize(new Dimension(VIEW_WIDTH, 140 * NOTE_HEIGHT));
+
+ // Creates temporary variables
+ MidiEvent note;
+ MooNoteElement elem;
+ rects = new ArrayList(track.size() / 2);
+ extraHeight = Toolkit.getDefaultToolkit().getScreenSize().height - 150;
+
+ // Places note elements
+ for (int i = 0; i < track.size(); i++) {
+ note = track.get(i);
+ if (note instanceof MooNote) {
+ // Adds the note element to the note area and moves it to the appropriate place.
+ MooNote mn = (MooNote)note;
+ elem = new MooNoteElement(this, mn);
+ add(elem);
+ layoutElement(elem, false);
+ }
+ setPreferredSize(new Dimension(VIEW_WIDTH, viewLength + extraHeight));
+
+ }
+
+ // Creates pop-up menu.
+ popup = new JPopupMenu();
+ PopupListener pList = new PopupListener();
+ popupAdd = new JMenuItem("Add note...");
+ popupAdd.addActionListener(pList);
+ popup.add(popupAdd);
+
+ // Adds listeners for popup menu and keyboard synthesizer.
+ addMouseListener(new MAdapter());
+ addKeyListener(new MooKeyboard());
+ }
+
+ public void layoutElement(MooNoteElement elem, boolean old){
+ // If the element is currently in the view, removes its coordinates from the list.
+ Rectangle r = new Rectangle();
+ if (old){
+ r = elem.getBounds(r);
+ for (Iterator i = rects.iterator(); i.hasNext();){
+ Object ob = i.next();
+ if (r.equals(ob)){
+ rects.remove(ob);
+ break;
+ }
+ }
+ }
+
+ // Creates temporary variables.
+ ticksPerSixteenth = Moosique.getSequence().getResolution() / 4;
+ MooNote mn = elem.getNote();
+ int x, y, height;
+
+ // 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 MooTrackView () {
+ public Track getTrack() {
+ return track;
+ }
+
+ /**
+ * Returns the title of this view.
+ * @return the title of this view
+ */
+ public MooTrackTitle getTitle() {
+ return title;
+ }
+
+ 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();
+ }
+
+ private void addStandardNote() {
+ long timestamp = (long)(ticksPerSixteenth * (popupY - insets.top) / NOTE_HEIGHT);
+ System.out.println(ticksPerSixteenth + ", " + popupY + ", " + insets.top + ", " + timestamp);
+ addNote(new MooNote(title.getChannel(), 60, 100, timestamp, Moosique.getSequence().getResolution() / 4));
+ }
+
+ 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);
+ }
+ }
+ }
+
+ class MAdapter extends MouseAdapter {
+ public void mouseClicked(MouseEvent e) {
+ if (e.getClickCount() == 2) {
+ popupY = e.getY();
+ addStandardNote();
+ }
+ }
+
+ public void mousePressed(MouseEvent e) {
+ if (e.isPopupTrigger()) {
+ popupY = e.getY();
+ popup.show(e.getComponent(), e.getX(), e.getY());
+ }
+ }
+
+ public void mouseEntered(MouseEvent e) {
+ // Moosique.setActiveChannel(track.getChannel());
+ grabFocus();
+ }
+ }
+ 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)
+ }
}
-}
+}
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