MooTrackTitle.java

   1 import javax.swing.*;
   2 import java.awt.*;
   3 import java.awt.event.*;
   4 import javax.sound.midi.*;
   5
   6 /**
   7  * The title bar for each track with track name, channelBox, instrument etc.
   8  *
   9  * @author  Andersson, Andreen, Lanneskog, Pehrson
  10  * @version 1
  11  */
  12
  13 public class MooTrackTitle extends JPanel {
  14
  15         private Track track;
  16         private MetaMessage trackNameMessage;
  17         private ShortMessage programChangeMessage;
  18         private MooTrackView mtv;
  19
  20         private JTextField title;
  21         private MooInstrumentList instruments;
  22         private JComboBox channelBox;
  23         private JCheckBox mute;
  24         private JCheckBox solo;
  25         private JButton record;
  26
  27         private String trackName = "";
  28         private int channel = 0;
  29
  30         /**
  31          * Creates the title bar for an empty track, and therefore an initial channel is required.
  32          * @param aTrack the track that this tracktitle is operating on.
  33          * @param chan  the initial channel
  34          */
  35         public MooTrackTitle (Track aTrack, int chan) {
  36                 this(aTrack);
  37                 channel = chan;
  38         }
  39
  40         /**
  41          * Creates the title bar.
  42          * @param aTrack the track that this track title is operating on.
  43          */
  44         public MooTrackTitle (Track aTrack) {
  45                 setDoubleBuffered(true);
  46                 track = aTrack;
  47
  48                 // Finds track name, program change and channel.
  49                 MidiMessage msg;
  50                 int status;
  51                 for (int i = 0; i < track.size(); i++) {
  52                         msg = track.get(i).getMessage();
  53                         status = msg.getStatus();
  54                         if (status == MetaMessage.META) {
  55                                 if (((MetaMessage)msg).getType() == 3) {
  56                                         trackNameMessage = (MetaMessage)msg;
  57                                         trackName = new String(trackNameMessage.getData());
  58                                 }
  59                         } else if (status >= 192 && status < 208) {
  60                                 programChangeMessage = (ShortMessage)msg;
  61                                 channel = programChangeMessage.getChannel();
  62                         }
  63                 }
  64
  65                 // Creates and places components.
  66                 setLayout(new GridLayout(4,1));
  67                 setBorder(BorderFactory.createLineBorder(Color.black));
  68                 TitleListener tl = new TitleListener();
  69
  70                 setPreferredSize(new Dimension(MooTrackView.VIEW_WIDTH,70));
  71                 title = new JTextField(trackName);
  72                 title.setFont(Moosique.getGUI().FONT);
  73                 title.addFocusListener(new TitleFocusListener());
  74                 add(title);
  75
  76                 int type;
  77                 if (channel == 9) type = MooInstrumentList.DRUMS;
  78                 else type = MooInstrumentList.INSTRUMENTS;
  79                 instruments = new MooInstrumentList(channel, type, programChangeMessage);
  80                 add(instruments);
  81
  82                 channelBox = new JComboBox();
  83                 channelBox.setFont(Moosique.getGUI().FONT);
  84                 for (int i = 1; i <= 16; i++)
  85                         channelBox.addItem(new Integer(i));
  86
  87                 channelBox.setSelectedIndex(channel);
  88
  89                 channelBox.addActionListener(tl);
  90                 add(channelBox);
  91
  92                 JPanel checkboxes = new JPanel();
  93                 checkboxes.setLayout(new GridLayout(1,3));
  94
  95                 mute = new JCheckBox("Mute");
  96                 mute.setSelected(false);
  97                 Moosique.setTrackMute(track, false);
  98                 mute.setFont(Moosique.getGUI().FONT);
  99                 mute.addActionListener(tl);
 100                 checkboxes.add(mute);
 101
 102                 solo = new JCheckBox("Solo");
 103                 solo.setSelected(false);
 104                 Moosique.setTrackSolo(track, false);
 105                 solo.setFont(Moosique.getGUI().FONT);
 106                 solo.addActionListener(tl);
 107                 checkboxes.add(solo);
 108
 109                 record = new JButton("Record");
 110                 record.setFont(Moosique.getGUI().FONT);
 111                 record.addActionListener(tl);
 112                 checkboxes.add(record);
 113
 114                 add(checkboxes);
 115         }
 116
 117         /**
 118          * Returns the channel of the track that the view is visualising.
 119          * @return the chanel of the visualised track
 120          */
 121         public int getChannel() {
 122                 return channel;
 123         }
 124
 125         /**
 126          * Sets the track view this title should update after recording.
 127          * @param the track view
 128          */
 129         public void setTrackView(MooTrackView tv) {
 130                 mtv = tv;
 131         }
 132
 133         /**
 134          * When the title field loses focus, updates the corresponding MidiEvent.
 135          */
 136         class TitleFocusListener extends FocusAdapter {
 137                 public void focusLost(FocusEvent e) {
 138                         try {
 139                                 trackNameMessage.setMessage(3, title.getText().getBytes(), title.getText().length());
 140                         } catch (InvalidMidiDataException ex) {}
 141                 }
 142         }
 143
 144         /**
 145          * Takes the appropriate action when a user selects an item on the popup menu.
 146          */
 147         class TitleListener implements ActionListener {
 148                 public void actionPerformed(ActionEvent e) {
 149                         Object source = e.getSource();
 150                         if (source == channelBox) {
 151                                 channel = channelBox.getSelectedIndex();
 152                                 MidiEvent me;
 153                                 MooNote mn;
 154                                 instruments.setChannel(channel);
 155                                 // Prompt the user before rechannelling???
 156                                 for (int j = 0; j < track.size(); j++) {
 157                                         me = track.get(j);
 158                                         if (me instanceof MooNote){
 159                                                 mn = (MooNote)me;
 160                                                 mn.setChannel(channel);
 161                                         }
 162                                 }
 163                         } else if (source == solo) {
 164                                 boolean selected = mute.isSelected();
 165                                 if (selected){
 166                                         solo.setSelected(false);
 167                                         Moosique.setTrackSolo(track, false);
 168                                 }
 169                                 Moosique.setTrackMute(track, selected);
 170                         } else if (source == mute) {
 171                                 boolean selected = solo.isSelected();
 172                                 if (selected){
 173                                         mute.setSelected(false);
 174                                         Moosique.setTrackMute(track, false);
 175                                 }
 176                                 Moosique.setTrackSolo(track, selected);
 177                         } else if (source == record) {
 178                                 Sequencer sequencer = Moosique.getSequencer();
 179                                 boolean quantize = false;
 180                                 if (record.getText() == "Record") {
 181                                         /* Show a dialog with:
 182                                                 "Track" combo box,
 183                                                 "Channel" combo box (disabled?,
 184                                                 "Quantize" checkbox and
 185                                                 "Start Recording" button.
 186                                         */
 187                                         record.setText("Stop");
 188                                         mtv.enableKeyboardRecording();
 189                                         sequencer.recordEnable(track, channel);
 190                                         sequencer.startRecording();
 191                                         Moosique.setEdited();
 192                                 } else {
 193                                         record.setText("Record");
 194                                         mtv.disableKeyboardRecording();
 195                                         sequencer.stopRecording();
 196                                         sequencer.recordDisable(track);
 197                                         java.util.List newNotes = Moosique.convertTrack(track, quantize);
 198                                         mtv.placeNewNotes(newNotes);
 199                                 }
 200                         }
 201                 }
 202         }
 203 }