/*
* Freeplane - mind map editor
* Copyright (C) 2008 Joerg Mueller, Daniel Polansky, Christian Foltin, Dimitry Polivaev
*
* This file is modified by Dimitry Polivaev in 2008.
*
* 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 2 of the License, or
* (at your option) any later version.
*
* 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 org.freeplane.core.ui.components;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JComboBox;
import org.freeplane.core.resources.ResourceController;
public class PersistentEditableComboBox extends JComboBox {
/**
*
*/
private static final long serialVersionUID = 1L;
private ActionListener actionListener = null;
final private String pStorageKey;
private boolean sendExternalEvents = true;
public PersistentEditableComboBox(final String storageKey, final int maximumRowCount) {
pStorageKey = storageKey;
setEditable(true);
setMaximumRowCount(maximumRowCount);
final String storedUrls = ResourceController.getResourceController().getProperty(pStorageKey);
if (storedUrls != null) {
final String[] array = storedUrls.split("\t");
for (int i = 0; i < array.length; i++) {
if (i == maximumRowCount) {
break;
}
final String string = array[i];
addUrl(string);
}
}
setSelectedItem("");
super.addActionListener(new ActionListener() {
public void actionPerformed(final ActionEvent arg0) {
final String text = getText();
if (text == null) {
return;
}
addUrl(text);
if (sendExternalEvents && actionListener != null) {
actionListener.actionPerformed(arg0);
}
}
});
}
@Override
public void addActionListener(final ActionListener arg0) {
actionListener = arg0;
}
private void addUrl(final String selectedItem) {
final DefaultComboBoxModel model = (DefaultComboBoxModel) getModel();
for (int i = 0; i < model.getSize(); i++) {
final String element = (String) model.getElementAt(i);
if (element.equals(selectedItem)) {
model.removeElementAt(i);
break;
}
}
model.insertElementAt(selectedItem, 0);
setSelectedIndex(0);
final StringBuilder resultBuffer = new StringBuilder();
for (int i = 0; i < model.getSize(); i++) {
final String element = (String) model.getElementAt(i);
resultBuffer.append(element);
resultBuffer.append("\t");
}
ResourceController.getResourceController().setProperty(pStorageKey, resultBuffer.toString());
};
public String getText() {
final Object selectedItem = getSelectedItem();
return selectedItem == null ? null : selectedItem.toString();
}
public void setText(final String text) {
sendExternalEvents = false;
addUrl(text);
sendExternalEvents = true;
}
}