1 import javax.sound.midi.*;
4 import java.awt.event.*;
8 * The main view, the container of the track views.
10 * @author Einar Pehrson
13 public class MooView extends JScrollPane {
15 private JPanel trackPanel;
16 private JPanel titlePanel;
17 private MooViewCounter viewCounter;
18 private int numberOfTracks;
21 * Creates the main view
23 public MooView(Track[] tracks) {
24 super(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
25 trackPanel = new JPanel(new GridLayout(1,3), true);
26 setViewportView(trackPanel);
28 titlePanel = new JPanel(new GridLayout(1,3),true);
29 JViewport columnHeader = new JViewport();
30 columnHeader.setView(titlePanel);
31 setColumnHeaderView(columnHeader);
33 viewCounter = new MooViewCounter(4, 4);
34 JViewport rowHeader = new JViewport();
35 rowHeader.setView(viewCounter);
36 setRowHeaderView(rowHeader);
42 * Fills the track panel with track views for all tracks in the current sequence.
43 * @param tracks the tracks for which to add views
45 public void setTracks(Track[] tracks) {
46 setDoubleBuffered(true);
47 numberOfTracks = tracks.length;
48 trackPanel.removeAll();
49 titlePanel.removeAll();
50 if (numberOfTracks == 1) {
51 // If MIDI file is of type 0, creates a view for the track.
52 trackPanel.setLayout(new FlowLayout());
53 trackPanel.add(new MooTrackView(tracks[0]));
54 titlePanel.add(new MooTrackTitle(tracks[0],0));
56 // Creates dialog for progress bar.
57 JDialog progressDialog = new JDialog(Moosique.getGUI(), "Visualizing...", false);
58 JProgressBar progressBar = new JProgressBar(0, tracks.length);
59 progressBar.setValue(0);
60 progressBar.setStringPainted(true);
61 progressDialog.getContentPane().add(progressBar);
62 progressDialog.pack();
63 progressDialog.setLocation((Toolkit.getDefaultToolkit().getScreenSize().width - progressDialog.getWidth()) / 2, (Toolkit.getDefaultToolkit().getScreenSize().height - progressDialog.getHeight()) / 2);
64 progressDialog.setVisible(true);
66 // Starts filling the track panel with track views, while updating the progress bar.
67 trackPanel.setLayout(new GridLayout(1,numberOfTracks));
68 for (int i = 1; i < tracks.length; i++) {
69 trackPanel.add(new MooTrackView(tracks[i]));
70 titlePanel.add(new MooTrackTitle(tracks[i],i));
71 progressBar.setValue(i);
73 progressDialog.dispose();
75 /* JPanel filler = new JPanel();
76 int totalViewLength = trackPanel.getComponents().length * MooTrackView.VIEW_WIDTH;
77 if (totalViewLength < getWidth()) {
78 System.out.println("Adding filler since width = " + getWidth() + " and tracks = " + totalViewLength);
79 ((GridLayout)trackPanel.getLayout()).setColumns(numberOfTracks + 1);
80 filler.setPreferredSize(new Dimension(getWidth() - totalViewLength, 140 * MooTrackView.NOTE_HEIGHT));
81 trackPanel.add(filler);
82 setPreferredSize(new Dimension(getWidth(), getHeight()));
85 trackPanel.validate();
86 setViewportView(trackPanel);
90 * Calls on each track view to update itself.
92 public void update(long tickPosition) {
93 getViewport().setViewPosition(new Point((int)getViewport().getViewPosition().getX(), (int)(tickPosition / (Moosique.getSequence().getResolution() / 4)) * MooTrackView.NOTE_HEIGHT));
94 Component[] comps = getComponents();
95 for (int i = 0; i < comps.length; i++) {
96 if(comps[i] instanceof MooTrackView) ((MooTrackView)comps[i]).update(tickPosition);
101 * Creates a view for the given track and adds it to the main view.
102 * @param track the track for which to add a view
103 * @param index the index at which to insert the view
105 public void addTrackView(Track track, int index) {
106 ((GridLayout)trackPanel.getLayout()).setColumns(++numberOfTracks);
107 ((GridLayout)titlePanel.getLayout()).setColumns(++numberOfTracks);
108 trackPanel.add(new MooTrackView(track), index);
109 titlePanel.add(new MooTrackTitle(track,index), index);
114 * Removes the view for the given track.
115 * @param index the index of the track for which to remove the view
117 public void removeTrackView(int index) {
119 ((GridLayout)trackPanel.getLayout()).setColumns(--numberOfTracks);