source: josm/trunk/src/org/openstreetmap/josm/tools/I18n.java@ 3415

Last change on this file since 3415 was 3415, checked in by stoecker, 14 years ago

added zh_CN language
  • Property svn:eol-style set to native
File size: 19.0 KB
Line 
1// License: GPL. Copyright 2007 by Immanuel Scholz and others
2package org.openstreetmap.josm.tools;
3
4import java.io.BufferedInputStream;
5import java.io.InputStream;
6import java.net.URL;
7import java.text.MessageFormat;
8import java.util.Arrays;
9import java.util.Comparator;
10import java.util.HashMap;
11import java.util.Locale;
12import java.util.Vector;
13
14import javax.swing.JColorChooser;
15import javax.swing.JFileChooser;
16import javax.swing.UIManager;
17
18import org.openstreetmap.josm.Main;
19
20/**
21 * Internationalisation support.
22 *
23 * @author Immanuel.Scholz
24 */
25public class I18n {
26 private enum PluralMode { MODE_NOTONE, MODE_NONE, MODE_GREATERONE,
27 MODE_CS, MODE_AR, MODE_PL, MODE_RO, MODE_RU, MODE_SK, MODE_SL}
28 private static PluralMode pluralMode = PluralMode.MODE_NOTONE; /* english default */
29
30 /* Localization keys for file chooser (and color chooser). */
31 private static final String[] jFileChooserLocalizationKeys = new String[] {
32 /* windows laf */
33 "FileChooser.detailsViewActionLabelText",
34 "FileChooser.detailsViewButtonAccessibleName",
35 "FileChooser.detailsViewButtonToolTipText",
36 "FileChooser.fileAttrHeaderText",
37 "FileChooser.fileDateHeaderText",
38 "FileChooser.fileNameHeaderText",
39 "FileChooser.fileNameLabelText",
40 "FileChooser.fileSizeHeaderText",
41 "FileChooser.fileTypeHeaderText",
42 "FileChooser.filesOfTypeLabelText",
43 "FileChooser.homeFolderAccessibleName",
44 "FileChooser.homeFolderToolTipText",
45 "FileChooser.listViewActionLabelText",
46 "FileChooser.listViewButtonAccessibleName",
47 "FileChooser.listViewButtonToolTipText",
48 "FileChooser.lookInLabelText",
49 "FileChooser.newFolderAccessibleName",
50 "FileChooser.newFolderActionLabelText",
51 "FileChooser.newFolderToolTipText",
52 "FileChooser.refreshActionLabelText",
53 "FileChooser.saveInLabelText",
54 "FileChooser.upFolderAccessibleName",
55 "FileChooser.upFolderToolTipText",
56 "FileChooser.viewMenuLabelText",
57
58 /* gtk laf */
59 "FileChooser.acceptAllFileFilterText",
60 "FileChooser.cancelButtonText",
61 "FileChooser.cancelButtonToolTipText",
62 "FileChooser.deleteFileButtonText",
63 "FileChooser.filesLabelText",
64 "FileChooser.filterLabelText",
65 "FileChooser.foldersLabelText",
66 "FileChooser.newFolderButtonText",
67 "FileChooser.newFolderDialogText",
68 "FileChooser.openButtonText",
69 "FileChooser.openButtonToolTipText",
70 "FileChooser.openDialogTitleText",
71 "FileChooser.pathLabelText",
72 "FileChooser.renameFileButtonText",
73 "FileChooser.renameFileDialogText",
74 "FileChooser.renameFileErrorText",
75 "FileChooser.renameFileErrorTitle",
76 "FileChooser.saveButtonText",
77 "FileChooser.saveButtonToolTipText",
78 "FileChooser.saveDialogTitleText",
79
80 /* motif laf */
81 //"FileChooser.cancelButtonText",
82 //"FileChooser.cancelButtonToolTipText",
83 "FileChooser.enterFileNameLabelText",
84 //"FileChooser.filesLabelText",
85 //"FileChooser.filterLabelText",
86 //"FileChooser.foldersLabelText",
87 "FileChooser.helpButtonText",
88 "FileChooser.helpButtonToolTipText",
89 //"FileChooser.openButtonText",
90 //"FileChooser.openButtonToolTipText",
91 //"FileChooser.openDialogTitleText",
92 //"FileChooser.pathLabelText",
93 //"FileChooser.saveButtonText",
94 //"FileChooser.saveButtonToolTipText",
95 //"FileChooser.saveDialogTitleText",
96 "FileChooser.updateButtonText",
97 "FileChooser.updateButtonToolTipText",
98
99 /* color chooser */
100 "GTKColorChooserPanel.blueText",
101 "GTKColorChooserPanel.colorNameText",
102 "GTKColorChooserPanel.greenText",
103 "GTKColorChooserPanel.hueText",
104 "GTKColorChooserPanel.nameText",
105 "GTKColorChooserPanel.redText",
106 "GTKColorChooserPanel.saturationText",
107 "GTKColorChooserPanel.valueText"
108 };
109 private static HashMap<String, String> strings = null;
110 private static HashMap<String, String[]> pstrings = null;
111 private static HashMap<String, PluralMode> languages = new HashMap<String, PluralMode>();
112
113 /**
114 * Set by MainApplication. Changes here later will probably mess up everything, because
115 * many strings are already loaded.
116 */
117 public static final String tr(String text, Object... objects) {
118 return MessageFormat.format(gettext(text, null), objects);
119 }
120
121 public static final String tr(String text) {
122 if (text == null)
123 return null;
124 return MessageFormat.format(gettext(text, null), (Object)null);
125 }
126
127 public static final String trc(String ctx, String text) {
128 if (ctx == null)
129 return tr(text);
130 if (text == null)
131 return null;
132 return MessageFormat.format(gettext(text, ctx), (Object)null);
133 }
134
135 /* NOTE: marktr does NOT support context strings - use marktrc instead */
136 public static final String marktr(String text) {
137 return text;
138 }
139
140 public static final String marktrc(String context, String text) {
141 return text;
142 }
143
144 public static final String trn(String text, String pluralText, long n, Object... objects) {
145 return MessageFormat.format(gettextn(text, pluralText, null, n), objects);
146 }
147
148 public static final String trn(String text, String pluralText, long n) {
149 return MessageFormat.format(gettextn(text, pluralText, null, n), (Object)null);
150 }
151
152 public static final String trnc(String ctx, String text, String pluralText, long n, Object... objects) {
153 return MessageFormat.format(gettextn(text, pluralText, ctx, n), objects);
154 }
155
156 public static final String trnc(String ctx, String text, String pluralText, long n) {
157 return MessageFormat.format(gettextn(text, pluralText, ctx, n), (Object)null);
158 }
159
160 private static final String gettext(String text, String ctx)
161 {
162 int i;
163 if(ctx == null && text.startsWith("_:") && (i = text.indexOf("\n")) >= 0)
164 {
165 ctx = text.substring(2,i-1);
166 text = text.substring(i+1);
167 }
168 if(strings != null)
169 {
170 String trans = strings.get(ctx == null ? text : "_:"+ctx+"\n"+text);
171 if(trans != null)
172 return trans;
173 }
174 if(pstrings != null) {
175 String[] trans = pstrings.get(ctx == null ? text : "_:"+ctx+"\n"+text);
176 if(trans != null)
177 return trans[0];
178 }
179 return text;
180 }
181
182 private static final String gettextn(String text, String plural, String ctx, long num)
183 {
184 int i;
185 if(ctx == null && text.startsWith("_:") && (i = text.indexOf("\n")) >= 0)
186 {
187 ctx = text.substring(2,i-1);
188 text = text.substring(i+1);
189 }
190 if(pstrings != null)
191 {
192 i = pluralEval(num);
193 String[] trans = pstrings.get(ctx == null ? text : "_:"+ctx+"\n"+text);
194 if(trans != null && trans.length > i)
195 return trans[i];
196 }
197
198 return num == 1 ? text : plural;
199 }
200
201 /**
202 * Get a list of all available JOSM Translations.
203 * @return an array of locale objects.
204 */
205 public static final Locale[] getAvailableTranslations() {
206 Vector<Locale> v = new Vector<Locale>();
207 if(Main.class.getResource("/data/en.lang") != null)
208 {
209 for (String loc : languages.keySet()) {
210 if(Main.class.getResource("/data/"+loc+".lang") != null) {
211 int i = loc.indexOf('_');
212 if (i > 0) {
213 v.add(new Locale(loc.substring(0, i), loc.substring(i + 1)));
214 } else {
215 v.add(new Locale(loc));
216 }
217 }
218 }
219 }
220 v.add(Locale.ENGLISH);
221 Locale[] l = new Locale[v.size()];
222 l = v.toArray(l);
223 Arrays.sort(l, new Comparator<Locale>() {
224 public int compare(Locale o1, Locale o2) {
225 return o1.toString().compareTo(o2.toString());
226 }
227 });
228 return l;
229 }
230
231 public static void init()
232 {
233 languages.put("ar", PluralMode.MODE_AR);
234 languages.put("bg", PluralMode.MODE_NOTONE);
235 languages.put("cs", PluralMode.MODE_CS);
236 languages.put("da", PluralMode.MODE_NOTONE);
237 languages.put("de", PluralMode.MODE_NOTONE);
238 languages.put("el", PluralMode.MODE_NOTONE);
239 languages.put("en_AU", PluralMode.MODE_NOTONE);
240 languages.put("en_GB", PluralMode.MODE_NOTONE);
241 languages.put("es", PluralMode.MODE_NOTONE);
242 languages.put("et", PluralMode.MODE_NOTONE);
243 languages.put("eu", PluralMode.MODE_NOTONE);
244 languages.put("fi", PluralMode.MODE_NOTONE);
245 languages.put("fr", PluralMode.MODE_GREATERONE);
246 languages.put("gl", PluralMode.MODE_NOTONE);
247 languages.put("is", PluralMode.MODE_NOTONE);
248 languages.put("it", PluralMode.MODE_NOTONE);
249 languages.put("iw_IL", PluralMode.MODE_NOTONE);
250 languages.put("ja", PluralMode.MODE_NONE);
251 languages.put("nb", PluralMode.MODE_NOTONE);
252 languages.put("nl", PluralMode.MODE_NOTONE);
253 languages.put("pl", PluralMode.MODE_PL);
254 languages.put("pt_BR", PluralMode.MODE_GREATERONE);
255 languages.put("ro", PluralMode.MODE_RO);
256 languages.put("ru", PluralMode.MODE_RU);
257 languages.put("sk", PluralMode.MODE_SK);
258 languages.put("sl", PluralMode.MODE_SL);
259 languages.put("sv", PluralMode.MODE_NOTONE);
260 languages.put("tr", PluralMode.MODE_NONE);
261 languages.put("uk", PluralMode.MODE_RU);
262 languages.put("zh_CN", PluralMode.MODE_NONE);
263 languages.put("zh_TW", PluralMode.MODE_NONE);
264
265 /* try initial language settings, may be changed later again */
266 if(!load(Locale.getDefault().toString())) {
267 Locale.setDefault(Locale.ENGLISH);
268 }
269 }
270
271 private static boolean load(String l)
272 {
273 if(l.equals("en") || l.equals("en_US"))
274 {
275 strings = null;
276 pstrings = null;
277 pluralMode = PluralMode.MODE_NOTONE;
278 return true;
279 }
280 URL en = Main.class.getResource("/data/en.lang");
281 if(en == null)
282 return false;
283 URL tr = Main.class.getResource("/data/"+l+".lang");
284 if(tr == null)
285 {
286 int i = l.indexOf('_');
287 if (i > 0) {
288 l = l.substring(0, i);
289 }
290 tr = Main.class.getResource("/data/"+l+".lang");
291 if(tr == null)
292 return false;
293 }
294
295 HashMap<String, String> s = new HashMap<String, String>();
296 HashMap<String, String[]> p = new HashMap<String, String[]>();
297 /* file format:
298 for all single strings:
299 {
300 unsigned short (2 byte) stringlength
301 string
302 }
303 unsigned short (2 byte) 0xFFFF (marks end of single strings)
304 for all multi strings:
305 {
306 unsigned char (1 byte) stringcount
307 for stringcount
308 unsigned short (2 byte) stringlength
309 string
310 }
311 */
312 try
313 {
314 InputStream ens = new BufferedInputStream(en.openStream());
315 InputStream trs = new BufferedInputStream(tr.openStream());
316 byte[] enlen = new byte[2];
317 byte[] trlen = new byte[2];
318 boolean multimode = false;
319 byte[] str = new byte[4096];
320 for(;;)
321 {
322 if(multimode)
323 {
324 int ennum = ens.read();
325 int trnum = trs.read();
326 if((ennum == -1 && trnum != -1) || (ennum != -1 && trnum == -1)) /* files do not match */
327 return false;
328 if(ennum == -1) {
329 break;
330 }
331 String[] enstrings = new String[ennum];
332 String[] trstrings = new String[trnum];
333 for(int i = 0; i < ennum; ++i)
334 {
335 int val = ens.read(enlen);
336 if(val != 2) /* file corrupt */
337 return false;
338 val = (enlen[0] < 0 ? 256+enlen[0]:enlen[0])*256+(enlen[1] < 0 ? 256+enlen[1]:enlen[1]);
339 if(val > str.length) {
340 str = new byte[val];
341 }
342 int rval = ens.read(str, 0, val);
343 if(rval != val) /* file corrupt */
344 return false;
345 enstrings[i] = new String(str, 0, val, "utf-8");
346 }
347 for(int i = 0; i < trnum; ++i)
348 {
349 int val = trs.read(trlen);
350 if(val != 2) /* file corrupt */
351 return false;
352 val = (trlen[0] < 0 ? 256+trlen[0]:trlen[0])*256+(trlen[1] < 0 ? 256+trlen[1]:trlen[1]);
353 if(val > str.length) {
354 str = new byte[val];
355 }
356 int rval = trs.read(str, 0, val);
357 if(rval != val) /* file corrupt */
358 return false;
359 trstrings[i] = new String(str, 0, val, "utf-8");
360 }
361 if(trnum > 0) {
362 p.put(enstrings[0], trstrings);
363 }
364 }
365 else
366 {
367 int enval = ens.read(enlen);
368 int trval = trs.read(trlen);
369 if(enval != trval) /* files do not match */
370 return false;
371 if(enval == -1) {
372 break;
373 }
374 if(enval != 2) /* files corrupt */
375 return false;
376 enval = (enlen[0] < 0 ? 256+enlen[0]:enlen[0])*256+(enlen[1] < 0 ? 256+enlen[1]:enlen[1]);
377 trval = (trlen[0] < 0 ? 256+trlen[0]:trlen[0])*256+(trlen[1] < 0 ? 256+trlen[1]:trlen[1]);
378 if(enval == 0xFFFF)
379 {
380 multimode = true;
381 if(trval != 0xFFFF) /* files do not match */
382 return false;
383 }
384 else
385 {
386 if(enval > str.length) {
387 str = new byte[enval];
388 }
389 if(trval > str.length) {
390 str = new byte[trval];
391 }
392 int val = ens.read(str, 0, enval);
393 if(val != enval) /* file corrupt */
394 return false;
395 String enstr = new String(str, 0, enval, "utf-8");
396 if(trval != 0)
397 {
398 val = trs.read(str, 0, trval);
399 if(val != trval) /* file corrupt */
400 return false;
401 String trstr = new String(str, 0, trval, "utf-8");
402 s.put(enstr, trstr);
403 }
404 }
405 }
406 }
407 }
408 catch(Exception e)
409 {
410 return false;
411 }
412 if(!s.isEmpty() && languages.containsKey(l))
413 {
414 strings = s;
415 pstrings = p;
416 pluralMode = languages.get(l);
417 return true;
418 }
419 return false;
420 }
421
422 /**
423 * Sets the default locale (see {@see Locale#setDefault(Locale)} to the local
424 * given by <code>localName</code>.
425 *
426 * Ignored if localName is null. If the locale with name <code>localName</code>
427 * isn't found the default local is set to <tt>en</tt> (english).
428 *
429 * @param localeName the locale name. Ignored if null.
430 */
431 public static void set(String localeName){
432 if (localeName != null) {
433 Locale l;
434 if (localeName.equals("he")) {
435 localeName = "iw_IL";
436 }
437 int i = localeName.indexOf('_');
438 if (i > 0) {
439 l = new Locale(localeName.substring(0, i), localeName.substring(i + 1));
440 } else {
441 l = new Locale(localeName);
442 }
443 if (load(localeName)) {
444 Locale.setDefault(l);
445 } else {
446 if (!l.getLanguage().equals("en")) {
447 System.out.println(tr("Unable to find translation for the locale {0}. Reverting to {1}.",
448 l.getDisplayName(), Locale.getDefault().getDisplayName()));
449 } else {
450 strings = null;
451 pstrings = null;
452 }
453 }
454 }
455 }
456
457 /**
458 * Localizations for file chooser dialog.
459 * For some locales (e.g. de, fr) translations are provided
460 * by Java, but not for others (e.g. ru, uk).
461 */
462 public static void fixJFileChooser() {
463 Locale l = Locale.getDefault();
464
465 JFileChooser.setDefaultLocale(l);
466 JColorChooser.setDefaultLocale(l);
467 for (String key : jFileChooserLocalizationKeys) {
468 String us = UIManager.getString(key, Locale.US);
469 String loc = UIManager.getString(key, l);
470 // only provide custom translation if it is not already localized by Java
471 if (us != null && us.equals(loc)) {
472 UIManager.put(key, tr(us));
473 }
474 }
475 }
476
477 private static int pluralEval(long n)
478 {
479 switch(pluralMode)
480 {
481 case MODE_NOTONE: /* bg, da, de, el, en, en_GB, es, et, eu, fi, gl, is, it, iw_IL, nb, nl, sv */
482 return ((n != 1) ? 1 : 0);
483 case MODE_NONE: /* ja, tr, zh_CN, zh_TW */
484 return 0;
485 case MODE_GREATERONE: /* fr, pt_BR */
486 return ((n > 1) ? 1 : 0);
487 case MODE_CS:
488 return ((n == 1) ? 0 : (((n >= 2) && (n <= 4)) ? 1 : 2));
489 case MODE_AR:
490 return ((n == 0) ? 0 : ((n == 1) ? 1 : ((n == 2) ? 2 : ((((n % 100) >= 3)
491 && ((n % 100) <= 10)) ? 3 : ((((n % 100) >= 11) && ((n % 100) <= 99)) ? 4 : 5)))));
492 case MODE_PL:
493 return ((n == 1) ? 0 : (((((n % 10) >= 2) && ((n % 10) <= 4))
494 && (((n % 100) < 10) || ((n % 100) >= 20))) ? 1 : 2));
495 case MODE_RO:
496 return ((n == 1) ? 0 : ((((n % 100) > 19) || (((n % 100) == 0) && (n != 0))) ? 2 : 1));
497 case MODE_RU:
498 return ((((n % 10) == 1) && ((n % 100) != 11)) ? 0 : (((((n % 10) >= 2)
499 && ((n % 10) <= 4)) && (((n % 100) < 10) || ((n % 100) >= 20))) ? 1 : 2));
500 case MODE_SK:
501 return ((n == 1) ? 1 : (((n >= 2) && (n <= 4)) ? 2 : 0));
502 case MODE_SL:
503 return (((n % 100) == 1) ? 1 : (((n % 100) == 2) ? 2 : ((((n % 100) == 3)
504 || ((n % 100) == 4)) ? 3 : 0)));
505 }
506 return 0;
507 }
508}
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