MooView.java

   1 import javax.sound.midi.*;
   2 import javax.swing.*;
   3 import java.awt.*;
   4 import java.awt.event.*;
   5 import java.beans.*;
   6
   7 /**
   8  * The main view, the container of the track views.
   9  *
  10  * @author  Einar Pehrson
  11  */
  12
  13 public class MooView extends JScrollPane {
  14
  15         private JPanel trackPanel;
  16         private JPanel titlePanel;
  17         private MooViewCounter viewCounter;
  18         private int numberOfTracks;
  19
  20         /**
  21          * Creates the main view
  22          */
  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);
  27
  28                 titlePanel = new JPanel(new GridLayout(1,3),true);
  29                 JViewport columnHeader = new JViewport();
  30                 columnHeader.setView(titlePanel);
  31                 setColumnHeaderView(columnHeader);
  32
  33                 viewCounter = new MooViewCounter(4, 4);
  34                 JViewport rowHeader = new JViewport();
  35                 rowHeader.setView(viewCounter);
  36                 setRowHeaderView(rowHeader);
  37
  38                 setTracks(tracks);
  39         }
  40
  41         /**
  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
  44          */
  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));
  55                 } else {
  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);
  65
  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);
  72                         }
  73                         progressDialog.dispose();
  74                 }
  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()));
  83                 }
  84 */
  85                 trackPanel.validate();
  86                 setViewportView(trackPanel);
  87         }
  88
  89         /**
  90          * Calls on each track view to update itself.
  91          */
  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);
  97                 }
  98         }
  99
 100         /**
 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
 104          */
 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);
 110                 validate();
 111         }
 112
 113         /**
 114          * Removes the view for the given track.
 115          * @param index         the index of the track for which to remove the view
 116          */
 117         public void removeTrackView(int index) {
 118                 remove(index);
 119                 ((GridLayout)trackPanel.getLayout()).setColumns(--numberOfTracks);
 120                 validate();
 121         }
 122 }