How to use JProgressBar in my code
Hello people,
i am getting stuck, i cannot figure out how to use ProgressMonitorInputStream in my code. Can some one give an example to use JProgressBar,ProgressMonitor or ProgressMonitorInputStream, which one is suitable for my code. I want the Dialog occur during the zipping, it is nice if there is procent output like from 0% until 100%, so i know if the zipping finishs. Any help would be appreciated.
import javax.swing.*;
import javax.swing.ProgressMonitorInputStream.*;
import java.awt.*;
import java.awt.event.*;
import java.util.zip.*;
import java.io.*;
public class ZipGui extends JFrame
{
private JFileChooser jfc = new JFileChooser();
private JLabel source_jlabel = new JLabel("File to be zipped :");
private JLabel destination_jlabel = new JLabel("Destination :");
private JTextField source_jtextfield = new JTextField("c:\\directory");
private JTextField destination_jtextfield = new JTextField("c:\\destination+name");
private JButton source_jbutton = new JButton("Browser");
private JButton destination_jbutton = new JButton("Browser");
private JLabel ziporexit_jlabel = new JLabel("Action :");
private JButton zip_jbutton = new JButton("Zip");
private JButton exit_jbutton = new JButton("Exit");
public ZipGui(String title)
{
super(title);
Container pane = getContentPane();
pane.setLayout(new GridLayout(3,3));
pane.add(source_jlabel);
pane.add(source_jtextfield);
pane.add(source_jbutton);
pane.add(destination_jlabel);
pane.add(destination_jtextfield);
pane.add(destination_jbutton);
pane.add(ziporexit_jlabel);
pane.add(zip_jbutton);
pane.add(exit_jbutton);
source_jbutton.addActionListener(new BrowserActionListener());
destination_jbutton.addActionListener(new BrowserActionListener());
zip_jbutton.addActionListener(new ZipActionListener());
exit_jbutton.addActionListener
(
new ActionListener()
{
public void actionPerformed(ActionEvent ae)
{
Runtime.getRuntime().exit(0);
}
}
);
}
public class BrowserActionListener implements ActionListener
{
public void actionPerformed(ActionEvent ae)
{
if(ae.getSource() == source_jbutton)
{
//browser both files and directories
jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
int state = jfc.showOpenDialog(null);
if(state == JFileChooser.APPROVE_OPTION)
{
source_jtextfield.setText(jfc.getSelectedFile().getPath());
}
else if(state == JFileChooser.CANCEL_OPTION)
{
return;
}
}
else if(ae.getSource() == destination_jbutton)
{
//only browser directory to be zipped
jfc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
int state = jfc.showOpenDialog(null);
if(state == JFileChooser.APPROVE_OPTION)
{
destination_jtextfield.setText(jfc.getSelectedFile().getPath());
}
else if(state == JFileChooser.CANCEL_OPTION)
{
return;
}
}
}
}
public class ZipActionListener implements ActionListener
{
public void actionPerformed(ActionEvent ae)
{
try
{
zip();
}
catch(IOException ioe)
{
JOptionPane.showMessageDialog(null,ioe.toString());
}
}
}
public void zip() throws IOException
{
byte[] buffer = new byte[1024];
int pos = 0;
FileOutputStream fos = new FileOutputStream(new File(destination_jtextfield.getText()));
ZipOutputStream zos = new ZipOutputStream(fos);
File file = new File(source_jtextfield.getText());
String absolute = file.getAbsolutePath();
String relativ = absolute.substring(absolute.lastIndexOf(File.separator)+1);
FileInputStream fis = new FileInputStream(file);
ProgressMonitorInputStream pmis = new ProgressMonitorInputStream(this,"Zip "+relativ,fis);
ZipEntry entry = new ZipEntry(relativ);
zos.setMethod(ZipOutputStream.DEFLATED);
zos.setLevel(9);
zos.putNextEntry(entry);
while((pos = pmis.read(buffer)) != -1)
{
zos.write(buffer,0,pos);
}
fis.close();
zos.close();
pmis.close();
}
public static void main(String[] args)
{
String LookAndFeel = UIManager.getCrossPlatformLookAndFeelClassName();
try
{
UIManager.setLookAndFeel(LookAndFeel);
}
catch(Exception e)
{
e.getMessage();
}
ZipGui zip = new ZipGui("ZipMaker");
zip.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
zip.setVisible(true);
zip.pack();
}
}
