skrueger/i8n/Translation.java

/*******************************************************************************
 * Copyright (c) 2009 Martin O. J. Schmitz.
 * 
 * This file is part of the SCHMITZM library - a collection of utility 
 * classes based on Java 1.6, focusing (not only) on Java Swing 
 * and the Geotools library.
 * 
 * The SCHMITZM project is hosted at:
 * http://wald.intevation.org/projects/schmitzm/
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 3
 * 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 Lesser General Public License (license.txt)
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 * or try this link: http://www.gnu.org/licenses/lgpl.html
 * 
 * Contributors:
 *     Martin O. J. Schmitz - initial API and implementation
 *     Stefan A. Tzeggai - additional utility classes
 ******************************************************************************/
package skrueger.i8n;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Random;
import java.util.WeakHashMap;

import javax.swing.JComponent;

import org.apache.log4j.Logger;
import org.geotools.util.WeakHashSet;
import org.opengis.util.InternationalString;

import skrueger.geotools.Copyable;

/**
 * Represents a {@link HashMap} of translations. toString() returns the
 * appropriate translation
 * 
 * @author @author <a href="mailto:[email protected]">Stefan Alfons
 *         Tzeggai</a>
 */

public class Translation extends HashMap<String, String> implements
                Copyable<Translation>, Serializable {
        
        private static final long serialVersionUID = -347702744122305245L;
        
        public static final String LOCALECHANGE_PROPERTY = "localechange";
        public static final String NO_TRANSLATION = "NO TRANSLATION";
        public static final String DEFAULT_KEY = "default";
        static final Logger LOGGER = Logger.getLogger(Translation.class);
        static String activeLang = Locale.getDefault().getLanguage();

        static protected WeakHashSet<PropertyChangeListener> listeners = new WeakHashSet<PropertyChangeListener>(
                        PropertyChangeListener.class);

        static {

                // TODO default aus Locale auslesen und mit möglichen vergleichen...
                // mmm.. vor laden von atlasml immer DEFAULT_KEY, also hier nicht

                // Get default locale
                Locale locale = Locale.getDefault();
                setActiveLang(locale.getLanguage());
        }
        
        

        private WeakHashSet<ActionListener> actionListeners = new WeakHashSet<ActionListener>(
                        ActionListener.class);

        @Override
        /*
         * @comment To make a copy of a translation see methods toOneLine() and
         * fromOneLine()
         */
        public Translation clone() {
                throw new RuntimeException("use copy()");
                // return (Translation) super.clone();
        }

        /**
         * Get the two-letter language sting that is active
         */
        public static String getActiveLang() {
                return activeLang;
        }

        /**
         * Set up the {@link Translation}-system to use language. If a change is
         * performed, events are fired to listeners. Nothing is done if the new
         * language equals the old language. The system's default locale is changed.
         * 
         * @param newLang
         *            The ISO Code of the new active language
         */
        public static void setActiveLang(String newLang) {
                setActiveLang(newLang, true);
        }

        /**
         * Set up the {@link Translation}-system to use language. If a change is
         * performed, events are fired to listeners. Nothing is done if the new
         * language equals the old language.
         * 
         * @param newLang
         *            The ISO Code of the new active language
         * 
         * @param setDefaultLocale
         *            Shall the system's default locale be changed?
         */
        public static void setActiveLang(String newLang, boolean setDefaultLocale) {
                if (getActiveLang().equals(newLang)) {
                        return;
                }

                if (!I8NUtil.isValidISOLangCode(newLang)) {
                        throw new IllegalArgumentException("'" + newLang
                                        + "' is not a valid ISO language code.");
                }

                Locale newLocale = new Locale(newLang);
                if (setDefaultLocale)
                        Locale.setDefault(newLocale);

                /**
                 * Setting default locale for Swing JComponents to work around bug
                 * http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4884480
                 */
                JComponent.setDefaultLocale(newLocale);

                Translation.activeLang = newLang;

                fireLocaleChangeEvents();

                LOGGER.info("skrueger.i8n.Translation switched ActiveLang to "
                                + newLang);
        }

        /**
         * Initializes a new {@link Translation} with a default translation if a
         * simple text is passed. If a "oneLine" text is parsed, it is interpreted.
         * Other translations may be added later - this is a HashMap<br/>
         * 
         * @param defaultTranslation
         * 
         * @see public Translation(List<String> languages, String
         *      defaultTranslation) {
         * 
         */
        public Translation(String defaultTranslation) {

                fromOneLine(defaultTranslation);

        }

        /**
         * Initializes a new {@link Translation}, an uses the given String to
         * initialize the {@link Translation} for all languages codes passed.
         * 
         * The translations can be changed later
         */
        public Translation(List<String> languages, String defaultTranslation) {
                // put(DEFAULT_KEY, defaultTranslation);
                if (languages == null) {
                        put(DEFAULT_KEY, defaultTranslation);
                } else
                        for (String code : languages) {
//                              if (code.equals(getActiveLang())) {
                                        put(code, defaultTranslation);
//                              }
                        }
        }

        /**
         * Sometimes Translations are optional, like for keywords.
         */
        public Translation() {
        }

        /**
         * Fills the {@link Translation} with the values coded into the String
         * Format of {@link String} is: "de{Baum}en{tree}"
         * <p>
         * <ul>
         * <li>If <code>oneLineCoded</code> is empty or null, NO TRANSLATION is set.
         * <li>If format can't be recognized, the {@link String} is interpreted as
         * the translation in the <code>{@value #DEFAULT_KEY}</code> language
         * 
         * @author Stefan Alfons Tzeggai
         */
        public void fromOneLine(final String oneLineCoded) {

                clear();

                try {

                        if ((oneLineCoded == null) || (oneLineCoded.equals(""))) {
                                put(DEFAULT_KEY, "");
                                return;
                        }

                        if (oneLineCoded.indexOf("}") == -1) {
                                // log.warn("The String '"+oneLineCoded+"' is not in oneLine coded => put(DEFAULT_KEY,oneLineCoded);");
                                put(DEFAULT_KEY, oneLineCoded);
                        }

                        String eatUp = oneLineCoded;
                        while (eatUp.indexOf("}") != -1) {
                                String substring = eatUp.substring(0, eatUp.indexOf("}"));

                                // log.debug("substring = "+substring);
                                String key = substring.substring(0, substring.indexOf("{"));
                                String value = substring.substring(substring.indexOf("{") + 1,
                                                substring.length());
                                // log.debug("key="+key);
                                // log.debug("value="+value);
                                put(key, value);
                                eatUp = eatUp.substring(eatUp.indexOf("}") + 1);
                        }
                } catch (Exception e) {
                        LOGGER.warn("Error while reading the oneLineCode '" + oneLineCoded
                                        + "'", e);
                        LOGGER.warn("Translation will be empty!");
                }
        }

        /**
         * Exports the Translations to a String of the Format: "de{Baum}en{tree}"
         * 
         * @author Stefan Alfons Tzeggai
         */
        public String toOneLine() {
                return I8NUtil.toOneLine(this);
        }

        /**
         * Returns the right translation by using the {@link #activeLang} field. If
         * no translation is set, an ugly String {@link #NO_TRANSLATION} will re
         * returned. This might be changed for the final release. If the correct
         * language was not found, any entry in the {@link Translation}
         * {@link HashMap} will be returned, that contains more than an empty
         * string.
         */
        @Override
        public String toString() {
                if (get(activeLang) != null) {
                        return get(activeLang);
                }
                // ****************************************************************************
                // MS: The ISDSS needs the concept of the default lang!! So I took the
                // following in again!!
                // ****************************************************************************
                // else return "";
                // //****************************************************************************
                // // The following is commented out.. the concept of the default lang
                // seems to be bad....
                // //****************************************************************************
                // MS:
                else {
                        if (get(DEFAULT_KEY) != null) {
                                return get(DEFAULT_KEY);
                        }

                        // log.debug("return first best <> '' ");
                        if (size() > 0)
                                for (String s : values()) {
                                        if ((s != null) && (s.trim().length() > 0))
                                                return s;
                                }
                }
                // log.warn("No translation found!");
                return NO_TRANSLATION;
        }

        /**
         * {@link PropertyChangeListener} can be registered to be informed when the
         * {@link Locale} changed.<br>
         * The listeners are kept in a {@link WeakHashMap}, so you have to keep a
         * reference to the listener or it will be removed!
         * 
         * @param propertyChangeListener
         *            A {@link PropertyChangeListener} that will be called when
         *            {@link #setActiveLang(String)} changes the language.
         */
        public static void addLocaleChangeListener(
                        PropertyChangeListener propertyChangeListener) {
                listeners.add(propertyChangeListener);
        }

        /**
         * {@link PropertyChangeListener} can be registered to be informed when the
         * {@link Locale} changed.<br>
         * The listeners are kept in a {@link WeakHashMap}, so you have to keep a
         * reference to the listener or it will be removed!
         * 
         * @param propertyChangeListener
         *            A {@link PropertyChangeListener} that will be called when
         *            {@link #setActiveLang(String)} changes the language.
         */
        public static boolean removeLocaleChangeListener(
                        PropertyChangeListener propertyChangeListener) {
                return listeners.remove(propertyChangeListener);
        }

        /**
         * Informs all registered {@link PropertyChangeListener}s about a change of
         * the the {@link Locale}.
         */
        public static void fireLocaleChangeEvents() {
                PropertyChangeEvent pce = new PropertyChangeEvent(new Translation(
                                new ArrayList<String>(), "fakeSource"), LOCALECHANGE_PROPERTY,
                                null, getActiveLang());
                for (PropertyChangeListener pcl : listeners) {
                        if (pcl != null)
                                pcl.propertyChange(pce);
                }
        }

        /**
         * The listeneras are stored in a {@link WeakHashSet}! So you HAVE TO KEEP a
         * reference as long as you need the listener.
         */
        public void addTranslationChangeListener(ActionListener actionListener) {
                if (actionListeners.add(actionListener)) {
//                      LOGGER
//                                      .debug("registering a new translationChangeActionListener in the WeakHashSet");
                }
        }

        /**
         * The listeneras are stored in a {@link WeakHashSet}! You don't have to
         * remove the listener, as long as you throw away the reference to the
         * listener.
         */
        public boolean removeTranslationChangeListener(ActionListener actionListener) {
                return actionListeners.remove(actionListener);
        }

        public void fireTranslationChangedEvents(String lang) {
                ActionEvent ae = new ActionEvent(this, new Random().nextInt(), lang);

                final Iterator<ActionListener> iterator = actionListeners.iterator();
                while (iterator.hasNext()) {
                        ActionListener al = iterator.next();
                        al.actionPerformed(ae);
                }
        }

        @Override
        public String put(String lang, String value) {
                String result = super.put(lang, value);
                fireTranslationChangedEvents(lang);
                return result;
        }

        public void fromOneLine(InternationalString iString) {
                if (iString != null)
                        fromOneLine(iString.toString());
                else
                        fromOneLine((String) null);
        }

        /**
         * Copy this {@link Translation} to another {@link Translation} e.g. for
         * editing
         * 
         * @return the destination {@link Translation}
         */
        @Override
        public Translation copyTo(Translation translation2) {

                if (translation2 == null)
                        // throw new IllegalArgumentException(
                        // "Target translation may not be null.");
                        return copy();
                for (String s : keySet()) {
                        translation2.put(s, get(s));
                }

                return translation2;
        }

        @Override
        public Translation copy() {
                return copyTo(new Translation());
        }

        /**
         * Checks if the {@link String}s stored in the {@link Translation} are all
         * valid.
         * 
         * @return <code>true</code> if all good
         */
        public static boolean checkValid(Translation translationToCheck) {

                for (String l : translationToCheck.values()) {

                        if (l.contains("{") || l.contains("}")) {

                                return false;
                        }
                }
                return true;
        }

}
1	alfonx	244	/*******************************************************************************
2			* Copyright (c) 2009 Martin O. J. Schmitz.
3			*
4			* This file is part of the SCHMITZM library - a collection of utility
5	alfonx	256	* classes based on Java 1.6, focusing (not only) on Java Swing
6	alfonx	244	* and the Geotools library.
7			*
8			* The SCHMITZM project is hosted at:
9			* http://wald.intevation.org/projects/schmitzm/
10			*
11			* This program is free software; you can redistribute it and/or
12			* modify it under the terms of the GNU Lesser General Public License
13			* as published by the Free Software Foundation; either version 3
14			* of the License, or (at your option) any later version.
15			*
16			* This program is distributed in the hope that it will be useful,
17			* but WITHOUT ANY WARRANTY; without even the implied warranty of
18			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19			* GNU General Public License for more details.
20			*
21			* You should have received a copy of the GNU Lesser General Public License (license.txt)
22			* along with this program; if not, write to the Free Software
23			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24			* or try this link: http://www.gnu.org/licenses/lgpl.html
25			*
26			* Contributors:
27			* Martin O. J. Schmitz - initial API and implementation
28	alfonx	862	* Stefan A. Tzeggai - additional utility classes
29	alfonx	244	******************************************************************************/
30			package skrueger.i8n;
31
32	alfonx	292	import java.awt.event.ActionEvent;
33			import java.awt.event.ActionListener;
34	alfonx	244	import java.beans.PropertyChangeEvent;
35			import java.beans.PropertyChangeListener;
36	alfonx	772	import java.io.Serializable;
37	alfonx	244	import java.util.ArrayList;
38			import java.util.HashMap;
39	alfonx	482	import java.util.Iterator;
40	alfonx	244	import java.util.List;
41			import java.util.Locale;
42	alfonx	292	import java.util.Random;
43	alfonx	607	import java.util.WeakHashMap;
44	alfonx	244
45			import javax.swing.JComponent;
46
47			import org.apache.log4j.Logger;
48	alfonx	482	import org.geotools.util.WeakHashSet;
49	alfonx	409	import org.opengis.util.InternationalString;
50	alfonx	244
51	alfonx	420	import skrueger.geotools.Copyable;
52
53	alfonx	244	/**
54			* Represents a {@link HashMap} of translations. toString() returns the
55			* appropriate translation
56			*
57			* @author @author <a href="mailto:[email protected]">Stefan Alfons
58	alfonx	888	* Tzeggai</a>
59	alfonx	244	*/
60
61	alfonx	482	public class Translation extends HashMap<String, String> implements
62	alfonx	772	Copyable<Translation>, Serializable {
63
64			private static final long serialVersionUID = -347702744122305245L;
65
66	alfonx	244	public static final String LOCALECHANGE_PROPERTY = "localechange";
67			public static final String NO_TRANSLATION = "NO TRANSLATION";
68			public static final String DEFAULT_KEY = "default";
69	alfonx	486	static final Logger LOGGER = Logger.getLogger(Translation.class);
70	alfonx	268	static String activeLang = Locale.getDefault().getLanguage();
71	alfonx	244
72	alfonx	607	static protected WeakHashSet<PropertyChangeListener> listeners = new WeakHashSet<PropertyChangeListener>(
73			PropertyChangeListener.class);
74	alfonx	244
75			static {
76
77			// TODO default aus Locale auslesen und mit möglichen vergleichen...
78			// mmm.. vor laden von atlasml immer DEFAULT_KEY, also hier nicht
79
80			// Get default locale
81			Locale locale = Locale.getDefault();
82			setActiveLang(locale.getLanguage());
83			}
84	alfonx	772
85
86	alfonx	244
87	alfonx	482	private WeakHashSet<ActionListener> actionListeners = new WeakHashSet<ActionListener>(
88			ActionListener.class);
89	alfonx	292
90	alfonx	244	@Override
91			/*
92			* @comment To make a copy of a translation see methods toOneLine() and
93			* fromOneLine()
94			*/
95			public Translation clone() {
96	alfonx	420	throw new RuntimeException("use copy()");
97	alfonx	482	// return (Translation) super.clone();
98	alfonx	244	}
99
100			/**
101			* Get the two-letter language sting that is active
102			*/
103			public static String getActiveLang() {
104			return activeLang;
105			}
106
107			/**
108			* Set up the {@link Translation}-system to use language. If a change is
109			* performed, events are fired to listeners. Nothing is done if the new
110			* language equals the old language. The system's default locale is changed.
111			*
112			* @param newLang
113			* The ISO Code of the new active language
114			*/
115			public static void setActiveLang(String newLang) {
116			setActiveLang(newLang, true);
117			}
118
119			/**
120			* Set up the {@link Translation}-system to use language. If a change is
121			* performed, events are fired to listeners. Nothing is done if the new
122			* language equals the old language.
123			*
124			* @param newLang
125			* The ISO Code of the new active language
126			*
127			* @param setDefaultLocale
128			* Shall the system's default locale be changed?
129			*/
130			public static void setActiveLang(String newLang, boolean setDefaultLocale) {
131			if (getActiveLang().equals(newLang)) {
132			return;
133			}
134
135			if (!I8NUtil.isValidISOLangCode(newLang)) {
136			throw new IllegalArgumentException("'" + newLang
137			+ "' is not a valid ISO language code.");
138			}
139
140			Locale newLocale = new Locale(newLang);
141			if (setDefaultLocale)
142			Locale.setDefault(newLocale);
143
144			/**
145			* Setting default locale for Swing JComponents to work around bug
146			* http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4884480
147			*/
148			JComponent.setDefaultLocale(newLocale);
149
150			Translation.activeLang = newLang;
151
152			fireLocaleChangeEvents();
153
154	alfonx	607	LOGGER.info("skrueger.i8n.Translation switched ActiveLang to "
155			+ newLang);
156	alfonx	244	}
157
158			/**
159			* Initializes a new {@link Translation} with a default translation if a
160			* simple text is passed. If a "oneLine" text is parsed, it is interpreted.
161			* Other translations may be added later - this is a HashMap<br/>
162			*
163			* @param defaultTranslation
164			*
165			* @see public Translation(List<String> languages, String
166			* defaultTranslation) {
167			*
168			*/
169			public Translation(String defaultTranslation) {
170
171			fromOneLine(defaultTranslation);
172
173			}
174
175			/**
176			* Initializes a new {@link Translation}, an uses the given String to
177			* initialize the {@link Translation} for all languages codes passed.
178			*
179			* The translations can be changed later
180			*/
181			public Translation(List<String> languages, String defaultTranslation) {
182			// put(DEFAULT_KEY, defaultTranslation);
183			if (languages == null) {
184			put(DEFAULT_KEY, defaultTranslation);
185			} else
186			for (String code : languages) {
187	alfonx	615	// if (code.equals(getActiveLang())) {
188	alfonx	244	put(code, defaultTranslation);
189	alfonx	615	// }
190	alfonx	244	}
191			}
192
193			/**
194			* Sometimes Translations are optional, like for keywords.
195			*/
196			public Translation() {
197			}
198
199			/**
200			* Fills the {@link Translation} with the values coded into the String
201			* Format of {@link String} is: "de{Baum}en{tree}"
202			* <p>
203			* <ul>
204			* <li>If <code>oneLineCoded</code> is empty or null, NO TRANSLATION is set.
205			* <li>If format can't be recognized, the {@link String} is interpreted as
206			* the translation in the <code>{@value #DEFAULT_KEY}</code> language
207			*
208	alfonx	862	* @author Stefan Alfons Tzeggai
209	alfonx	244	*/
210			public void fromOneLine(final String oneLineCoded) {
211	alfonx	420
212	alfonx	244	clear();
213	alfonx	482
214	alfonx	420	try {
215	alfonx	244
216	alfonx	482	if ((oneLineCoded == null) \|\| (oneLineCoded.equals(""))) {
217			put(DEFAULT_KEY, "");
218			return;
219			}
220	alfonx	244
221	alfonx	482	if (oneLineCoded.indexOf("}") == -1) {
222			// log.warn("The String '"+oneLineCoded+"' is not in oneLine coded => put(DEFAULT_KEY,oneLineCoded);");
223			put(DEFAULT_KEY, oneLineCoded);
224			}
225	alfonx	244
226	alfonx	482	String eatUp = oneLineCoded;
227			while (eatUp.indexOf("}") != -1) {
228			String substring = eatUp.substring(0, eatUp.indexOf("}"));
229
230			// log.debug("substring = "+substring);
231			String key = substring.substring(0, substring.indexOf("{"));
232			String value = substring.substring(substring.indexOf("{") + 1,
233			substring.length());
234			// log.debug("key="+key);
235			// log.debug("value="+value);
236			put(key, value);
237			eatUp = eatUp.substring(eatUp.indexOf("}") + 1);
238			}
239	alfonx	420	} catch (Exception e) {
240	alfonx	486	LOGGER.warn("Error while reading the oneLineCode '" + oneLineCoded
241	alfonx	482	+ "'", e);
242	alfonx	486	LOGGER.warn("Translation will be empty!");
243	alfonx	420	}
244	alfonx	244	}
245
246			/**
247			* Exports the Translations to a String of the Format: "de{Baum}en{tree}"
248			*
249	alfonx	862	* @author Stefan Alfons Tzeggai
250	alfonx	244	*/
251			public String toOneLine() {
252			return I8NUtil.toOneLine(this);
253			}
254
255			/**
256			* Returns the right translation by using the {@link #activeLang} field. If
257			* no translation is set, an ugly String {@link #NO_TRANSLATION} will re
258			* returned. This might be changed for the final release. If the correct
259			* language was not found, any entry in the {@link Translation}
260			* {@link HashMap} will be returned, that contains more than an empty
261			* string.
262			*/
263			@Override
264			public String toString() {
265			if (get(activeLang) != null) {
266			return get(activeLang);
267			}
268			// ****************************************************************************
269			// MS: The ISDSS needs the concept of the default lang!! So I took the
270			// following in again!!
271			// ****************************************************************************
272			// else return "";
273			// //****************************************************************************
274			// // The following is commented out.. the concept of the default lang
275			// seems to be bad....
276			// //****************************************************************************
277			// MS:
278			else {
279			if (get(DEFAULT_KEY) != null) {
280			return get(DEFAULT_KEY);
281			}
282
283			// log.debug("return first best <> '' ");
284			if (size() > 0)
285			for (String s : values()) {
286			if ((s != null) && (s.trim().length() > 0))
287			return s;
288			}
289			}
290	alfonx	482	// log.warn("No translation found!");
291	alfonx	244	return NO_TRANSLATION;
292			}
293
294			/**
295			* {@link PropertyChangeListener} can be registered to be informed when the
296	alfonx	607	* {@link Locale} changed.<br>
297			* The listeners are kept in a {@link WeakHashMap}, so you have to keep a
298			* reference to the listener or it will be removed!
299	alfonx	244	*
300			* @param propertyChangeListener
301	alfonx	607	* A {@link PropertyChangeListener} that will be called when
302			* {@link #setActiveLang(String)} changes the language.
303	alfonx	244	*/
304			public static void addLocaleChangeListener(
305			PropertyChangeListener propertyChangeListener) {
306			listeners.add(propertyChangeListener);
307			}
308
309			/**
310	alfonx	607	* {@link PropertyChangeListener} can be registered to be informed when the
311			* {@link Locale} changed.<br>
312			* The listeners are kept in a {@link WeakHashMap}, so you have to keep a
313			* reference to the listener or it will be removed!
314			*
315			* @param propertyChangeListener
316			* A {@link PropertyChangeListener} that will be called when
317			* {@link #setActiveLang(String)} changes the language.
318			*/
319			public static boolean removeLocaleChangeListener(
320			PropertyChangeListener propertyChangeListener) {
321			return listeners.remove(propertyChangeListener);
322			}
323
324			/**
325	alfonx	244	* Informs all registered {@link PropertyChangeListener}s about a change of
326			* the the {@link Locale}.
327			*/
328			public static void fireLocaleChangeEvents() {
329			PropertyChangeEvent pce = new PropertyChangeEvent(new Translation(
330			new ArrayList<String>(), "fakeSource"), LOCALECHANGE_PROPERTY,
331			null, getActiveLang());
332			for (PropertyChangeListener pcl : listeners) {
333			if (pcl != null)
334			pcl.propertyChange(pce);
335			}
336			}
337
338	alfonx	482	/**
339			* The listeneras are stored in a {@link WeakHashSet}! So you HAVE TO KEEP a
340			* reference as long as you need the listener.
341			*/
342	alfonx	292	public void addTranslationChangeListener(ActionListener actionListener) {
343	alfonx	486	if (actionListeners.add(actionListener)) {
344	alfonx	723	// LOGGER
345			// .debug("registering a new translationChangeActionListener in the WeakHashSet");
346	alfonx	486	}
347	alfonx	292	}
348	alfonx	482
349			/**
350			* The listeneras are stored in a {@link WeakHashSet}! You don't have to
351			* remove the listener, as long as you throw away the reference to the
352			* listener.
353			*/
354	alfonx	292	public boolean removeTranslationChangeListener(ActionListener actionListener) {
355			return actionListeners.remove(actionListener);
356			}
357
358	alfonx	300	public void fireTranslationChangedEvents(String lang) {
359			ActionEvent ae = new ActionEvent(this, new Random().nextInt(), lang);
360	alfonx	482
361			final Iterator<ActionListener> iterator = actionListeners.iterator();
362			while (iterator.hasNext()) {
363			ActionListener al = iterator.next();
364			al.actionPerformed(ae);
365	alfonx	292	}
366			}
367	alfonx	482
368	alfonx	292	@Override
369	alfonx	300	public String put(String lang, String value) {
370			String result = super.put(lang, value);
371			fireTranslationChangedEvents(lang);
372	alfonx	292	return result;
373			}
374	alfonx	409
375			public void fromOneLine(InternationalString iString) {
376			if (iString != null)
377			fromOneLine(iString.toString());
378	alfonx	482	else
379			fromOneLine((String) null);
380	alfonx	409	}
381	alfonx	482
382	alfonx	420	/**
383			* Copy this {@link Translation} to another {@link Translation} e.g. for
384			* editing
385			*
386			* @return the destination {@link Translation}
387			*/
388			@Override
389			public Translation copyTo(Translation translation2) {
390	alfonx	482
391	alfonx	420	if (translation2 == null)
392	alfonx	482	// throw new IllegalArgumentException(
393			// "Target translation may not be null.");
394			return copy();
395	alfonx	420	for (String s : keySet()) {
396			translation2.put(s, get(s));
397			}
398	alfonx	482
399	alfonx	420	return translation2;
400			}
401
402			@Override
403			public Translation copy() {
404			return copyTo(new Translation());
405			}
406
407			/**
408	alfonx	482	* Checks if the {@link String}s stored in the {@link Translation} are all
409			* valid.
410			*
411	alfonx	420	* @return <code>true</code> if all good
412			*/
413			public static boolean checkValid(Translation translationToCheck) {
414	alfonx	482
415	alfonx	420	for (String l : translationToCheck.values()) {
416	alfonx	482
417	alfonx	420	if (l.contains("{") \|\| l.contains("}")) {
418	alfonx	482
419	alfonx	420	return false;
420			}
421			}
422			return true;
423			}
424	alfonx	482
425	alfonx	244	}