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/*******************************************************************************
* Copyright (c) 2011 Google, Inc.
* 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:
* Google, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.wb.internal.core.nls.ui;
import com.google.common.base.Strings;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import org.eclipse.swt.graphics.Image;
import org.eclipse.wb.internal.core.DesignerPlugin;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
/**
* Repository of flags for locale/country.
*
* @author scheglov_ke
* @coverage core.nls.ui
*/
public class FlagImagesRepository {
private static Map<String, Image> m_countriesFlags = Maps.newHashMap();
private static Locale[] m_locales;
////////////////////////////////////////////////////////////////////////////
//
// Initialization
//
////////////////////////////////////////////////////////////////////////////
private static void init() {
if (m_locales == null) {
// prepare sorted Locale's
{
List<Locale> locales = Lists.newArrayList();
Collections.addAll(locales, Locale.getAvailableLocales());
Collections.sort(locales, new Comparator<Locale>() {
@Override
public int compare(Locale o1, Locale o2) {
return o1.toString().compareTo(o2.toString());
}
});
m_locales = locales.toArray(new Locale[locales.size()]);
}
}
}
////////////////////////////////////////////////////////////////////////////
//
// Access
//
////////////////////////////////////////////////////////////////////////////
/**
* @return the array of {@link Locale}'s sorted by title.
*/
public static Locale[] getSortedLocales() {
init();
return m_locales;
}
/**
* @return the {@link Image} of flag for default {@link Locale}.
*/
public static Image getEmptyFlagImage() {
return DesignerPlugin.getImage("nls/flags/flag_empty.png");
}
/**
* @return the {@link Image} of flag for given {@link Locale}.
*/
public static Image getFlagImage(Locale locale) {
init();
String localeCountry = locale.getCountry();
String localeLanguage = locale.getLanguage();
// BEGIN ADT MODIFICATIONS
return getFlagImage(localeCountry, localeLanguage);
}
public static Image getFlagImage(String localeCountry, String localeLanguage) {
init();
// END ADT MODIFICATIONS
// if locale has no assosiated country set, try to find the locale with the same language but with the country set
if (localeCountry.length() == 0) {
// special cases
if (localeLanguage.equals("ar")) {
localeCountry = "AE";
} else if (localeLanguage.equals("zh")) {
localeCountry = "CN";
} else if (localeLanguage.equals("en")) {
localeCountry = "US";
} else {
// try to guess
String localeCountryCandidate = "";
for (int i = 0; i < m_locales.length; i++) {
Locale lookupLocale = m_locales[i];
String lookupLanguage = lookupLocale.getLanguage();
if (lookupLanguage.equals(localeLanguage)) {
if (lookupLocale.getCountry().length() != 0) {
localeCountryCandidate = lookupLocale.getCountry();
if (localeCountryCandidate.equalsIgnoreCase(lookupLanguage)) {
localeCountry = localeCountryCandidate;
break;
}
}
}
}
if (localeCountry.length() == 0) {
localeCountry = localeCountryCandidate;
}
}
}
//
Image flagImage = m_countriesFlags.get(localeCountry);
if (flagImage == null) {
try {
String flagFileName = null;
if (localeCountry.equalsIgnoreCase("YU")) {
localeCountry = "CS"; // use Serbia and Montenegro
}
if (Strings.isNullOrEmpty(localeCountry)) {
return null;
}
flagFileName = localeCountry.toLowerCase() + ".png";
flagImage = DesignerPlugin.getImage("nls/flags/" + flagFileName);
m_countriesFlags.put(localeCountry, flagImage);
} catch (Throwable e) {
return null;
}
}
return flagImage;
}
}
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