* @param command
* @param list
* @return
*/
private JPanel createFilterPanel(String label, String command, JList list){
list.setCellRenderer(new ResourceCellRenderer());
JToolBar toolbar = new JToolBar();
JButton add = new JButton(new ImageIcon(ADD_ICON));
add.setToolTipText("Add "+command);
add.setActionCommand("add-"+command);
add.addActionListener(this);