docs: public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column)
      {
          if (value == null)
              this.setEnabled(false);
          else
              this.setEnabled(true);
          if (hasFocus)
          {
              this.setOpaque(false);
              this.setBorder(JScreen.m_borderLine);
          }
          else
          {
              this.setOpaque(isSelected);
              if (isSelected)
                  this.setBackground(table.getSelectionBackground());
              this.setBorder(null);
          }
          return this;
      }