How to apply a renderer only to a particular cell instead of whole column in JTable?

Question

I am quiet new to Swing. I have a JTable in which images are displayed in each cell. I need to create a RED border only around the cell which is currently selected. To do this I used following renderer class:

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

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

     lbl.setIcon((ImageIcon)value); 
     if(isSelected && hasFocus)
     {
         lbl.setBorder(BorderFactory.createEtchedBorder(Color.RED, Color.yellow));
     }
     return lbl;


 }
} 

The problem I am facing is that when I click on any cell in the JTable then instead of that particular cell the border is displayed for all the cells of the given column. I only need the border around the selected cell and not around all the cells present in that particular column.

Answer 1

Did you try to unset the border if the cell is not selected?

     if(isSelected && hasFocus)
     {
         lbl.setBorder(BorderFactory.createEtchedBorder(Color.RED, Color.yellow));
     }else{
         lbl.setBorder( BorderFactory.createEmptyBorder() );
     }