Progress bar in JTable?

Question

Hi,
I have written a cell renderer for a progress bar but I can't set its string or make it indeterminate. Has anybody done this before? Should I write my own, or use JProgressBar (currently using JProgressBar).
any help would be brilliant

Answer 1

Here is a little example I made which shows the JProgressBar being updated.
Everytime a row is clicked the progress bar adds one percent
import javax.swing.*;
import javax.swing.table.*;
import java.awt.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
public class TableProgress extends JFrame{
     public TableProgress(){
          super("Table Progress");
          setSize(500,115);
          Container theContainer = getContentPane();
          String[] headers = {"Name", "Percent Complete", "Progress"};
          Object[][] data = {
               {"John Adams","50",createBar(50, "50%")},
               {"Ben Franklin","75",createBar(75, "75%")},
               {"Karl Marx","0",createBar(0, "0%")},
               {"Gandalf","20",createBar(20, "20%")},
               {"Clint Eastwood","55",createBar(55, "55%")}
          final JTable theTable = new JTable(data, headers);
          theTable.setPreferredSize(new Dimension(500,100));
          theTable.getColumn("Progress").setCellRenderer(new ProgRenderer());
          ListSelectionModel rowSM = theTable.getSelectionModel();
          rowSM.addListSelectionListener(new ListSelectionListener() {
              public void valueChanged(ListSelectionEvent e) {
                  //Ignore extra messages.
                  if (e.getValueIsAdjusting()) return;
                  ListSelectionModel lsm =
                      (ListSelectionModel)e.getSource();
                  if (lsm.isSelectionEmpty()) {
                  } else {
                      int selectedRow = lsm.getMinSelectionIndex();
                      JProgressBar theBar = (JProgressBar)theTable.getValueAt(selectedRow, 2);
                      theBar.setValue(theBar.getValue()+1);
                      theBar.setString(String.valueOf(theBar.getValue()));
                      System.out.println(selectedRow);
          theContainer.add(theTable);
          setVisible(true);
          show();
     public JProgressBar createBar(int percentDone, String text){
          JProgressBar progressBar = new JProgressBar(0, 100);
          progressBar.setStringPainted(true);
          progressBar.setValue(percentDone);
          progressBar.setString(text);
          return progressBar;
     private class ProgRenderer implements TableCellRenderer{
          public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column){
               return (JProgressBar)value;
     public static void main(String[] args){
          TableProgress theTable = new TableProgress();
}