import javax.swing.*;
-import java.awt.event.*;
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
* @version 1
*/
-
-public class MooTrackView extends JPanel implements ActionListener {
+public class MooTrackView extends JPanel {
+
+ private Track track;
private MooTrackTitle title;
- private NoteArea notes;
private Rectangle box;
+
private JPopupMenu popup;
- private JMenuItem menuItem;
- private String newline = "\n";
-
- public MooTrackView () {
- setLayout(new BorderLayout());
- this.setBorder(BorderFactory.createLineBorder(Color.black));
- add(trackTitle(), BorderLayout.NORTH);
- add(noteView(), BorderLayout.CENTER);
+ private JMenuItem popupAdd;
+ private ArrayList rects;
+ private ArrayList selected;
+ 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;
+
+ /**
+ * Creates the trackview.
+ * @param track The track it represents graphically and operates on.
+ * @param title The object that is used to manipulate instrument, channel, solo, mute.
+ */
+ public MooTrackView (Track track, MooTrackTitle title) {
+ super(true);
+ this.track = track;
+ this.title = title;
+ insets = getInsets();
+ selected = new ArrayList();
+
+ // 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());
}
-
- private JPanel trackTitle () {
- title = new MooTrackTitle();
- title.setPreferredSize(new Dimension(PANEL_WIDTH, TITLE_HEIGHT));
- title.setBorder(BorderFactory.createLineBorder(Color.black));
+
+ /**
+ * Layouts the element to the right place.
+ * @param elem the element that will be layouted.
+ * @param old If true, this method will remove the old layout and set the new preferredSize for the trackview.
+ */
+ 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 Track getTrack() {
+ return track;
+ }
+
+ /**
+ * Returns the title of this view.
+ * @return the title of this view
+ */
+ public MooTrackTitle getTitle() {
return title;
}
- private JPanel noteView () {
- notes = new NoteArea();
- notes.setBackground(Color.white);
- notes.setBorder(BorderFactory.createLineBorder(Color.black));
-
- popup = new JPopupMenu();
- menuItem = new JMenuItem("Add...");
- menuItem.addActionListener(this);
- popup.add(menuItem);
- menuItem = new JMenuItem("Preferences...");
- menuItem.addActionListener(this);
- popup.add(menuItem);
-
- MouseListener popupListener = new PopupListener();
- notes.addMouseListener(popupListener);
-
- return notes;
+ /**
+ * 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;
}
- public void actionPerformed(ActionEvent e) {
- JMenuItem source = (JMenuItem)(e.getSource());
- String s = "Action event detected."
- + newline
- + " Event source: " + source.getText();
- }
-
- class NoteArea extends JPanel {
- public void RectanglePanel() {
- setPreferredSize(new Dimension(20, 20));
-
+ /**
+ * 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();
}
-
- public void paintComponent(Graphics g) {
- super.paintComponent(g);
- Graphics2D g2 = (Graphics2D)g;
- for (int c=0;c<1000;c=c+20) {
- int r=0;
- for (r=0;r<200;r=r+20) {
- box = new Rectangle(r,c,20,20);
- g2.setColor(Color.gray);
- g2.draw(box);
- }
+ 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);
}
}
}
- class PopupListener extends MouseAdapter {
- public void mousePressed(MouseEvent e) {
- maybeShowPopup(e);
- }
-
- public void mouseReleased(MouseEvent e) {
- maybeShowPopup(e);
- }
-
- private void maybeShowPopup(MouseEvent e) {
- if (e.isPopupTrigger()) {
- popup.show(e.getComponent(),
- e.getX(), e.getY());
- }
- }
- }
+ /**
+ * 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();
+ }
+ }
- private static final int PANEL_WIDTH = 65;
- private static final int TITLE_HEIGHT = 60;
- private static final int NOTEVIEW_HEIGHT = 200;
+ 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)
+ }
+ }
}
projects / moosique.git / blobdiff