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 JDialog progressDialog;
19 private JProgressBar progressBar;
20 private int numberOfTracks;
23 * Creates the main view
25 public MooView(Track[] tracks) {
26 super(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
28 // Configures scroll pane viewport (track views).
29 trackPanel = new JPanel(new GridLayout(1,3), true);
30 setViewportView(trackPanel);
31 getViewport().setScrollMode(JViewport.BACKINGSTORE_SCROLL_MODE);
33 // Configures viewport column header (track titles).
34 titlePanel = new JPanel(new GridLayout(1,3),true);
35 JViewport columnHeader = new JViewport();
36 columnHeader.setView(titlePanel);
37 setColumnHeaderView(columnHeader);
39 // Configures viewport row header (view counter).
40 viewCounter = new MooViewCounter(null);
41 JViewport rowHeader = new JViewport();
42 rowHeader.setView(viewCounter);
43 setRowHeaderView(rowHeader);
45 // Updates the view with the given tracks.
46 setTracks(tracks, false);
50 * Fills the track panel with track views for all tracks in the current sequence.
51 * @param tracks the tracks for which to add views
53 public void setTracks(Track[] tracks, boolean showProgress) {
54 setDoubleBuffered(true);
55 numberOfTracks = tracks.length;
56 trackPanel.removeAll();
57 titlePanel.removeAll();
58 if (numberOfTracks == 1) {
59 // If MIDI file is of type 0, creates a view for the track.
60 trackPanel.setLayout(new FlowLayout());
61 MooTrackTitle title = new MooTrackTitle(tracks[0]);
62 titlePanel.add(title);
63 trackPanel.add(new MooTrackView(tracks[0], title));
66 // Creates dialog for progress bar.
67 progressDialog = new JDialog(Moosique.getGUI(), "Visualizing...", false);
69 for (int i = 0; i < tracks.length; i++) {
70 if (Moosique.shouldBeDrawn(tracks[i])) tracksToDraw++;
72 progressBar = new JProgressBar(0, tracksToDraw);
73 progressBar.setValue(0);
74 progressBar.setStringPainted(true);
75 progressDialog.getContentPane().add(progressBar);
76 progressDialog.pack();
77 progressDialog.setLocation((Toolkit.getDefaultToolkit().getScreenSize().width - progressDialog.getWidth()) / 2, (Toolkit.getDefaultToolkit().getScreenSize().height - progressDialog.getHeight()) / 2);
78 progressDialog.setVisible(true);
81 // Starts filling the track panel with track views, while updating the progress bar.
82 GridLayout gL = new GridLayout(1,numberOfTracks);
83 trackPanel.setLayout(gL);
84 for (int i = 1; i < tracks.length; i++) {
85 if (Moosique.shouldBeDrawn(tracks[i])) {
86 MooTrackTitle title = new MooTrackTitle(tracks[i]);
87 titlePanel.add(title);
88 trackPanel.add(new MooTrackView(tracks[i], title));
89 if (showProgress) progressBar.setValue(i);
90 else System.out.print(".");
92 gL.setColumns(--numberOfTracks);
93 trackPanel.setLayout(gL);
96 if (showProgress) progressDialog.dispose();
98 /* JPanel filler = new JPanel();
99 int totalViewLength = trackPanel.getComponents().length * MooTrackView.VIEW_WIDTH;
100 if (totalViewLength < getWidth()) {
101 System.out.println("Adding filler since width = " + getWidth() + " and tracks = " + totalViewLength);
102 ((GridLayout)trackPanel.getLayout()).setColumns(numberOfTracks + 1);
103 filler.setPreferredSize(new Dimension(getWidth() - totalViewLength, 140 * MooTrackView.NOTE_HEIGHT));
104 trackPanel.add(filler);
105 setPreferredSize(new Dimension(getWidth(), getHeight()));
108 trackPanel.validate();
109 setViewportView(trackPanel);
113 * Calls on each track view to update itself.
115 public void update(long tickPosition) {
116 getViewport().setViewPosition(new Point((int)getViewport().getViewPosition().getX(), (int)(tickPosition / (Moosique.getSequence().getResolution() / 4)) * MooTrackView.NOTE_HEIGHT));
120 * Creates a view for the given track and adds it to the main view.
121 * @param track the track for which to add a view
122 * @param index the index at which to insert the view
124 public void addTrackView(Track track, int index) {
125 ((GridLayout)trackPanel.getLayout()).setColumns(++numberOfTracks);
126 ((GridLayout)titlePanel.getLayout()).setColumns(++numberOfTracks);
127 MooTrackTitle title = new MooTrackTitle(track);
128 titlePanel.add(title, index);
129 trackPanel.add(new MooTrackView(track, title), index);
134 * Removes the view for the given track.
135 * @param index the index of the track for which to remove the view
137 public void removeTrackView(int index) {
139 ((GridLayout)trackPanel.getLayout()).setColumns(--numberOfTracks);