Class FilterBar

code/src/java/pcgen/gui2/filter/FilterBar.java:50–408

This class represents the highest level DisplayableFilter in the filter hierarchy. A FilterBar is a filter which contains a set of other DisplayableFilters. At the bottom of a FilterBar is a region of space with an arrow at the center. When this is clicked all of the children filters will be hidden

 * be hidden from view.
 */
public class FilterBar<C, E> extends JPanel implements DisplayableFilter<C, E>
{

	private final JPanel filterPanel = new JPanel(new FilterLayout());
	private final List<DisplayableFilter<? super C, ? super E>> filters = new ArrayList<>();
	private FilterHandler filterHandler;

	public FilterBar()
	{
		this(true);
	}

	public FilterBar(boolean collapsable)
	{
		setLayout(new BorderLayout());
		add(filterPanel, BorderLayout.CENTER);

		final ArrowButton arrowbutton = new ArrowButton();
		arrowbutton.addMouseListener(new MouseAdapter()
		{

			@Override
			public void mousePressed(MouseEvent e)
			{
				boolean closed = !arrowbutton.isOpen();
				arrowbutton.setOpen(closed);
				filterPanel.setVisible(closed);
			}

		});
		if (collapsable)
		{
			add(arrowbutton, BorderLayout.SOUTH);
		}
	}

	public void addDisplayableFilter(DisplayableFilter<? super C, ? super E> filter)
	{
		filterPanel.add(filter.getFilterComponent());
		filters.add(filter);
		filter.setFilterHandler(filterHandler);
	}

	@Override
	public Component getFilterComponent()
	{
		return this;
	}

	@Override
	public void setFilterHandler(FilterHandler handler)
	{
		this.filterHandler = handler;
		for (DisplayableFilter<? super C, ? super E> displayableFilter : filters)
		{
			displayableFilter.setFilterHandler(handler);
		}
	}