/*******************************************************************************
* Copyright (c) 2016 Weasis Team and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Nicolas Roduit - initial API and implementation
*******************************************************************************/
package org.weasis.core.ui.pref;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.text.Collator;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Locale;
import javax.swing.JComboBox;
import org.weasis.core.api.service.BundleTools;
import org.weasis.core.api.util.LocalUtil;
@SuppressWarnings("serial")
public class JLocaleLanguage extends JComboBox<JLocale> implements ItemListener, Refreshable {
private final ArrayList<Locale> languages = new ArrayList<>();
public JLocaleLanguage() {
super();
initLocales();
sortLocales();
addItemListener(this);
}
private void initLocales() {
String langs = System.getProperty("weasis.languages", null); //$NON-NLS-1$
if (langs != null) {
String[] items = langs.split(","); //$NON-NLS-1$
for (int i = 0; i < items.length; i++) {
String item = items[i].trim();
int index = item.indexOf(' ');
Locale l = LocalUtil.textToLocale(index > 0 ? item.substring(0, index) : item);
if (l != null) {
languages.add(l);
}
}
}
if (languages.isEmpty()) {
languages.add(Locale.ENGLISH);
}
}
private void sortLocales() {
Locale defaultLocale = Locale.getDefault();
// Allow to sort correctly string in each language
final Collator collator = Collator.getInstance(defaultLocale);
Collections.sort(languages, (l1, l2) -> collator.compare(l1.getDisplayName(), l2.getDisplayName()));
JLocale dloc = null;
for (Locale locale : languages) {
JLocale val = new JLocale(locale);
if (locale.equals(defaultLocale)) {
dloc = val;
}
addItem(val);
}
if (dloc != null) {
this.setSelectedItem(dloc);
}
}
public void selectLocale(String locale) {
Locale sLoc = LocalUtil.textToLocale(locale);
Object item = getSelectedItem();
if (item instanceof JLocale && sLoc.equals(((JLocale) item).getLocale())) {
return;
}
int defaultIndex = -1;
for (int i = 0; i < getItemCount(); i++) {
Locale l = getItemAt(i).getLocale();
if (l.equals(sLoc)) {
defaultIndex = i;
break;
}
if (l.equals(Locale.ENGLISH)) {
defaultIndex = i;
}
}
setSelectedIndex(defaultIndex);
}
@Override
public void itemStateChanged(ItemEvent iEvt) {
if (iEvt.getStateChange() == ItemEvent.SELECTED) {
Object item = getSelectedItem();
if (item instanceof JLocale) {
removeItemListener(this);
Locale locale = ((JLocale) item).getLocale();
Locale.setDefault(locale);
BundleTools.SYSTEM_PREFERENCES.put("locale.lang.code", LocalUtil.localeToText(locale)); //$NON-NLS-1$
removeAllItems();
sortLocales();
addItemListener(this);
firePropertyChange("locale", null, locale); //$NON-NLS-1$
valueHasChanged();
}
}
}
}