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Swing: JTable with JLabel and images

Posted on 2011-10-13
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Last Modified: 2012-05-12
Please let me know how I can create a JTable with JLabels and images.

I want a 4X3 table with jlabels in the first 2 columns and images in the third column.

If possible, please provide some sample code.

Thanks!
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Question by:dshrenik
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4 Comments
 
LVL 47

Expert Comment

by:for_yan
ID: 36963957

You need to use TableCellRendereere
This is an example:
http://www.java2s.com/Code/Java/Swing-JFC/TableRendererSample.htm
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Author Comment

by:dshrenik
ID: 36963972
I am not sure how I can use JLabels and images inside a table. If possible, can you provide some sample code? Thanks!
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LVL 47

Expert Comment

by:for_yan
ID: 36963978
Table cell renderer retrns Component in this method:

 public Component getTableCellRendererComponent(JTable table, Object value,
      boolean isSelected, boolean hasFocus, int row, int column) {

you should define this method so that you'll check row and column and either
return smple Lavble for some columns or return say JPanel
showing the image depeneding on the value of parameter column
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LVL 47

Accepted Solution

by:
for_yan earned 2000 total points
ID: 36964156
This is an example which takes image in the first ciolumn - find some good gif
file for it - mine is not too beautiful , but it works:

import java.awt.BorderLayout;
import java.awt.Component;

import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableCellRenderer;

public class Main {
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().setLayout(new BorderLayout());

    MyTableModel model = new MyTableModel();

    JTable table = new JTable(model);
    table.setRowHeight(80);
    table.getColumnModel().getColumn(0).setCellRenderer(new ImageRenderer());
    JScrollPane pane = new JScrollPane(table);
    frame.getContentPane().add(BorderLayout.CENTER, pane);
    frame.setSize(500, 400);
    frame.setVisible(true);
  }
}

class MyTableModel extends AbstractTableModel {
  public Object getValueAt(int row, int column) {
    return "" + (row * column);
  }

  public int getColumnCount() {
    return 4;
  }

  public int getRowCount() {
    return 5;
  }
}

class ImageRenderer extends DefaultTableCellRenderer {
  JLabel lbl = new JLabel();

  ImageIcon icon = new ImageIcon("HearthFlag.gif");

  public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
      boolean hasFocus, int row, int column) {
    lbl.setText((String) value);
    lbl.setIcon(icon);
    return lbl;
  }
}

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