/**

 * Rozšířené atributy – program na správu rozšířených atributů souborů

 * Copyright © 2012 František Kučera (frantovo.cz)

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program. If not, see <http://www.gnu.org/licenses/>.

 */

package cz.frantovo.rozsireneatributy.gui;

import cz.frantovo.rozsireneatributy.Konfigurace;

import cz.frantovo.rozsireneatributy.Konfigurace.DefiniceAtributu;

import java.awt.Component;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.EventObject;

import javax.swing.JComboBox;

import javax.swing.JTable;

import javax.swing.event.CellEditorListener;

import javax.swing.event.ChangeEvent;

import javax.swing.event.EventListenerList;

import javax.swing.table.TableCellEditor;

/**

 * Umožňuje výběr názvu atributu z předvoleného seznamu

 * (standardizované atributy).

 *

 * @author Ing. František Kučera (frantovo.cz)

 */

public class EditorNázvůAtributů

	extends JComboBox<String>

	implements TableCellEditor {

	private final Konfigurace konfigurace;

	protected EventListenerList posluchače = new EventListenerList();

	protected ChangeEvent událost = new ChangeEvent(this);

	public EditorNázvůAtributů(Konfigurace konfigurace) {

		super();

		this.konfigurace = konfigurace;

		setEditable(true);

		addActionListener(new ActionListener() {

			@Override

			public void actionPerformed(ActionEvent e) {

				fireEditiaceSkončila();

			}

		});

	}

	protected void fireEditiaceSkončila() {

		for (Object posluchač : posluchače.getListenerList()) {

			if (posluchač instanceof CellEditorListener) {

				((CellEditorListener) posluchač).editingStopped(událost);

			}

		}

	}

	protected void fireEditiaceZrušena() {

		for (Object posluchač : posluchače.getListenerList()) {

			if (posluchač instanceof CellEditorListener) {

				((CellEditorListener) posluchač).editingCanceled(událost);

			}

		}

	}

	/**

	 * TODO:

	 * - další standardní atributy

	 * - načítat z XML souboru

	 *

	 * @see http://www.freedesktop.org/wiki/CommonExtendedAttributes

	 */

	private void obnovHodnoty(Object názevAtributu) {

		removeAllItems();

		if (názevAtributu == null) {

			názevAtributu = "";

		} else if (!(názevAtributu instanceof String)) {

			názevAtributu = String.valueOf(názevAtributu);

		}

		addItem((String) názevAtributu);

		setSelectedItem(názevAtributu);

		for (DefiniceAtributu da : konfigurace.getAtributy()) {

			addItem(da.getNázev());

		}

		if (!konfigurace.getAtributy().isEmpty()) return;

		// General attributes in current use

		addItem("mime_type");

		addItem("charset");

		addItem("creator");

		// Proposed metadata attributes

		addItem("xdg.comment");

		addItem("xdg.origin.url");

		addItem("xdg.origin.email.subject");

		addItem("xdg.origin.email.from");

		addItem("xdg.origin.email.message-id");

		addItem("xdg.language");

		addItem("xdg.creator");

		addItem("xdg.publisher");

		// Proposed control attributes

		addItem("xdg.robots.index");

		addItem("xdg.robots.backup");

		// Dublin Core

		addItem("dublincore.title");

		addItem("dublincore.creator");

		addItem("dublincore.subject");

		addItem("dublincore.description");

		addItem("dublincore.publisher");

		addItem("dublincore.contributor");

		addItem("dublincore.date");

		addItem("dublincore.type");

		addItem("dublincore.format");

		addItem("dublincore.identifier");

		addItem("dublincore.source");

		addItem("dublincore.language");

		addItem("dublincore.relation");

		addItem("dublincore.coverage");

		addItem("dublincore.rights");

		// Application-specific attributes in current use

		addItem("mime_encoding");

		addItem("apache_handler");

		addItem("Beagle.AttrTime");

		addItem("Beagle.Fingerprint");

		addItem("Beagle.MTime");

		addItem("Beagle.Uid");

	}

	@Override

	public Component getTableCellEditorComponent(

		JTable tabulka,

		Object hodnota,

		boolean vybraná,

		int řádek,

		int sloupec) {

		obnovHodnoty(hodnota);

		return this;

	}

	@Override

	public Object getCellEditorValue() {

		return getSelectedItem();

	}

	@Override

	public boolean isCellEditable(EventObject anEvent) {

		return true;

	}

	@Override

	public boolean shouldSelectCell(EventObject anEvent) {

		return true;

	}

	@Override

	public boolean stopCellEditing() {

		fireEditiaceSkončila();

		return true;

	}

	@Override

	public void cancelCellEditing() {

		fireEditiaceZrušena();

	}

	@Override

	public void addCellEditorListener(CellEditorListener l) {

		posluchače.add(CellEditorListener.class, l);

	}

	@Override

	public void removeCellEditorListener(CellEditorListener l) {

		posluchače.remove(CellEditorListener.class, l);

	}

}