[code]package beatbox.com;
import java.awt.;
import javax.swing.;
import java.io.;
import javax.sound.midi.;
import java.util.;
import java.awt.Event.;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.;
import javax.swing.event.;
public class BeatBoxFinal {
JFrame theFrame;
JPanel mainPanel;
JList incomingList;
JTextField userMessage;
ArrayList<JCheckBox> checkboxList;
int nextNum;
Vector<String> listVector = new Vector<String>();
String userName;
ObjectOutputStream out;
ObjectInputStream in;
HashMap<String, boolean[]> otherSeqsMap = new HashMap<String, boolean[]>();
Sequencer sequencer;
Sequence sequence;
Sequence mySequence = null;
Track track;
String[] instrumentNames = {"Bass Drum" , "Closed Hi-Hat", "Open Hi-Hat", "Acoustic Snare" , "Crash Cymbal","Hand Clap", "Hight Tom","Hi Bongo","Maracas","Whistle", "Low Conga", "Cowbell", "Vibraslap", "Low-mid Tom", "High Agogo", "Open Hi Conga"};
int[] instruments = {35,42,46,38,49,39,50,60,70,72,64,56,58,47,67,63};
public static void main (String[] args) {
new BeatBoxFinal().startUp(args[0]);
}
public void startUp(String name) {
userName = name;
try{
Socket sock = new Socket("127.0.0.1", 4242);
out = new ObjectOutputStream(sock.getOutputStream());
in = new ObjectInputStream(sock.getInputStream());
Thread remote = new Thread( new RemoteReader());
remote.start();
}catch(Exception ex) {
System.out.println("couldn't connect - you'll have to play alone.");
}
setUpMidi();
buildGUI();
}
public void buildGUI(){
theFrame = new JFrame("Cyber BeatBox");
BorderLayout layout = new BorderLayout();
JPanel background = new JPanel(layout);
background.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
checkboxList = new ArrayList<JCheckBox>();
Box buttonBox = new Box (BoxLayout.Y_AXIS);
JButton start = new JButton ("Start");
start.addActionListener(new MyStartListener());
buttonBox.add(start);
JButton stop = new JButton("Stop");
stop.addActionListener(new MyStopListener());
buttonBox.add(stop);
JButton upTempo = new JButton("Tempo Up");
upTempo.addActionListener(new MyUpTempoListener());
buttonBox.add(upTempo);
JButton downTempo = new JButton("Tempo Down");
downTempo.addActionListener(new MyDownTempoListener());
buttonBox.add(downTempo);
JButton sendtIt = new JButton("sendIt");
sendtIt.addActionListener(new MySendListener());
buttonBox.add(sendtIt);
userMessage = new JTextField();
buttonBox.add(userMessage);
incomingList = new JList();
incomingList.addListSelectionListener(new MyListSelectionListener());
incomingList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
JScrollPane theList = new JScrollPane(incomingList);
buttonBox.add(theList);
incomingList.setListData(listVector);
Box nameBox = new Box (BoxLayout.Y_AXIS);
for(int i = 0; i < 16; i++) {
nameBox.add(new Label(instrumentNames[i]));
}
background.add(BorderLayout.EAST, buttonBox);
background.add(BorderLayout.WEST, nameBox);
theFrame.getContentPane().add(background);
GridLayout grid = new GridLayout(16,16);
grid.setVgap(1);
grid.setHgap(2);
mainPanel = new JPanel(grid);
background.add(BorderLayout.CENTER, mainPanel);
for(int i = 0; i < 256; i++) {
JCheckBox c = new JCheckBox();
c.setSelected(false);
checkboxList.add(c);
mainPanel.add(c);
}
theFrame.setBounds(50,50,300,300);
theFrame.pack();
theFrame.setVisible(true);
}
public void setUpMidi(){
try{
sequencer = MidiSystem.getSequencer();
sequencer.open();
sequence = new Sequence(Sequence.PPQ,4);
track = sequence.createTrack();
sequencer.setTempoInBPM(120);
}catch(Exception e) {e.printStackTrace();}
}
public void buildTrackAndStart(){
ArrayList<Integer> trackList = null;
sequence.deleteTrack (track);
track = sequence.createTrack();
for (int i = 0; i <16; i++){
trackList = new ArrayList<Integer>();
for(int j = 0; j < 16; j++){
JCheckBox jc = (JCheckBox) checkboxList.get(j +(16*i));
if(jc.isSelected()){
int key = instruments[i];
trackList.add(new Integer(key));
}else{
trackList.add(null);
}
}
makeTracks(trackList);
}
track.add(makeEvent(192,9,1,0,15));
try{
sequencer.setSequence(sequence);
sequencer.setLoopCount(sequencer.LOOP_CONTINUOUSLY);
sequencer.start();
sequencer.setTempoInBPM(120);
}catch(Exception e) {e.printStackTrace(); }
}
public class MyStartListener implements ActionListener {
public void actionPerformed(ActionEvent a) {
buildTrackAndStart();
}
}
public class MyStopListener implements ActionListener{
public void actionPerformed(ActionEvent a) {
sequencer.stop();
}
}
public class MyUpTempoListener implements ActionListener {
public void actionPerformed(ActionEvent a) {
float tempoFactor = sequencer.getTempoFactor();
sequencer.setTempoFactor((float) (tempoFactor * 1.03));
}
}
public class MyDownTempoListener implements ActionListener{
public void actionPerformed(ActionEvent a) {
float tempoFactor = sequencer.getTempoFactor();
sequencer.setTempoFactor((float)(tempoFactor *97));
}
}
public class MySendListener implements ActionListener{
public void actionPerformed(ActionEvent a) {
boolean[] checkboxState = new boolean[256];
for (int i = 0; i <256; i++) {
JCheckBox check = (JCheckBox) checkboxList.get(i);
if(check.isSelected()){
checkboxState[i] = true;
}
}
String messageToSend = null;
try{
out.writeObject(userName + nextNum++ + ": " + userMessage.getText());
out.writeObject(checkboxState);
} catch(Exception ex) {
System.out.println("Sorry dude. Could not send it to the server.");
}
}
}
public class MyListSelectionListener implements ListSelectionListener {
public void valueChanged(ListSelectionEvent le) {
if(!le.getValueIsAdjusting()) {
String selected = (String) incomingList.getSelectedValue();
if(selected != null) {
boolean[] selectedState = (boolean[]) otherSeqsMap.get(selected);
changeSequence(selectedState);
sequencer.stop();
buildTrackAndStart();
}
}
}
}
public class RemoteReader implements Runnable {
boolean [] checkboxState = null;
String nameToShow = null;
Object obj = null;
public void run() {
try{
while((obj= in.readObject()) != null) {
System.out.println("got an object from server");
System.out.println(obj.getClass());
String nameToShow = (String) obj;
checkboxState = (boolean[]) in.readObject();
otherSeqsMap.put(nameToShow,checkboxState);
listVector.add(nameToShow);
incomingList.setListData(listVector);
}
}catch (Exception ex) {ex.printStackTrace(); }
}
}
public class MyPlayMineListener implements ActionListener {
public void actionPerformed(ActionEvent a) {
if(mySequence != null) {
sequence = mySequence;
}
}
}
public void changeSequence(boolean[] checkboxState) {
for(int i = 0; i < 256; i++) {
JCheckBox check = (JCheckBox) checkboxList.get(i);
if(checkboxState[i]) {
check.setSelected(true);
}else{
check.setSelected(false);
}
}
}
public void makeTracks(ArrayList list) {
Iterator it = list.iterator();
for (int i= 0; i < 16; i ++) {
Integer num = (Integer) it.next();
if(num != null) {
int numKey = num.intValue();
track.add(makeEvent(144,9,numKey,100, i));
track.add(makeEvent(128,9,numKey,100, i +1));
}
}
}
public MidiEvent makeEvent(int comd, int chan, int one , int two, int tick) {
MidiEvent event = null;
try{
ShortMessage a = new ShortMessage();
a.setMessage(comd,chan,one,two);
event = new MidiEvent(a , tick);
}catch(Exception e) {}
return event;
}
}
[/code]
O que tem de errado nesse código? Eu não consigo rodar ele. Me ajudem, por favor!