Drop mouse cursor disappears after setting custom cell renderer in table.

Question

Hi,
I've a JList and a JTable, drag&drop works ok between them. Now, if I change TableCellRenderer to custom cell renderer, say a descendent of JComponent that implements TableCellRenderer, it doesn't display drag cursor when it's on top of a cell, and on 1 pixel grid lines it displays right again. can someone help me to fix this issue.
Regards, thanks in advance,
Ozgur

Answer 1

it doesn't display drag cursor when it's on top of a cell, and on 1 pixel grid linesThe following renderer works ok for me, although I must admit there is a slight "flicker" when you move over the grid line. Not sure why that happens.
     class MultiLabelRenderer implements TableCellRenderer
          private JPanel panel;
          private JLabel red;
          private JLabel blue;
          public MultiLabelRenderer()
               panel = new JPanel(new BorderLayout());
               red = new JLabel();
               red.setForeground(Color.RED);
               blue = new JLabel();
               blue.setForeground(Color.BLUE);
          public Component getTableCellRendererComponent(
               JTable table, Object value, boolean isSelected,
               boolean hasFocus, final int row, final int column)
               String text = value.toString();
               red.setText( text.substring(0,1) );
               blue.setText( text.substring(1) );
               panel.removeAll();
               int columnWidth = table.getColumnModel().getColumn(column).getWidth();
               int redWidth = red.getPreferredSize().width;
               if (redWidth > columnWidth)
                    panel.add(red);
               else
                    panel.add(red, BorderLayout.WEST);
                    panel.add(blue);
               if (isSelected)
                    panel.setBackground( table.getSelectionBackground() );
               else
                    panel.setBackground( table.getBackground() );
               return panel;
     }