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import java.awt.*;
import javax.swing.*;
import javax.sound.midi.*;
import java.util.*;
import java.awt.event.*;
public class BeatBoxTemp{
JPanel mainPanel;
ArrayList checkboxList;
Sequencer sequencer;
Sequence sequence;
Track track;
JFrame theFrame;
String[] instrumentNames = {"Bass Brum","Closed Hi-Hat",
"Open Hi-Hat","Acoustic Snare","Crash Cymbl","Hand Clap","High 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 BeatBoxTemp().buildGUI();
}
public void buildGUI(){
theFrame = new JFrame("Cyber BeatBox");
theFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
BorderLayout layout = new BorderLayout();
JPanel background = new JPanel(layout);
//设定面板上摆设组件时的空白边缘
background.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
checkboxList = new ArrayList();
//BoxLayout 可以指定在容器中是否对控件进行水平或者垂直放置
//Y_AXIS-组件从上到下纵向排列
//按钮的Layout
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);
//乐器的名字的Layout
Box nameBox = new Box(BoxLayout.Y_AXIS);
for(int i = 0; i