Merged with stashed state
[mdictionary] / trunk / src / plugins / xdxf / src / xdxfplugin.cpp
1 /*******************************************************************************
2
3     This file is part of mDictionary.
4
5     mDictionary is free software: you can redistribute it and/or modify
6     it under the terms of the GNU General Public License as published by
7     the Free Software Foundation, either version 3 of the License, or
8     (at your option) any later version.
9
10     mDictionary is distributed in the hope that it will be useful,
11     but WITHOUT ANY WARRANTY; without even the implied warranty of
12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13     GNU General Public License for more details.
14
15     You should have received a copy of the GNU General Public License
16     along with mDictionary.  If not, see <http://www.gnu.org/licenses/>.
17
18     Copyright 2010 Comarch S.A.
19
20 *******************************************************************************/
21
22 #include "xdxfplugin.h"
23 #include <QDebug>
24 #include <QFile>
25 #include <QXmlStreamReader>
26 #include <QtPlugin>
27 #include "TranslationXdxf.h"
28 #include "../../../includes/settings.h"
29
30 XdxfPlugin::XdxfPlugin(QObject *parent) : CommonDictInterface(parent),
31                     _langFrom(tr("")), _langTo(tr("")),_name(tr("")),
32                     _type(tr("xdxf")), _infoNote(tr("")) {
33     _wordsCount = -1;
34     _settings = new Settings();
35     _dictDialog = new XdxfDictDialog(this, this);
36     cachingDialog = new XdxfCachingDialog(this);
37
38     connect(cachingDialog, SIGNAL(cancelCaching()),
39             this, SLOT(stop()));
40
41     _settings->setValue("type","xdxf");
42
43     stopped = false;
44
45     _icon = QIcon(":/icons/xdxf.png");
46 }
47
48 QString XdxfPlugin::langFrom() const {   
49     return _langFrom;
50 }
51
52 QString XdxfPlugin::langTo() const {
53     return  _langTo;
54 }
55
56 QString XdxfPlugin::name() const {
57     return  _name;
58 }
59
60 QString XdxfPlugin::type() const {
61 //    return _settings->value("type");
62     return _type;
63 }
64
65 QString XdxfPlugin::infoNote() const {
66     return  _infoNote;
67 }
68
69 QList<Translation*> XdxfPlugin::searchWordList(QString word, int limit) {
70     //if(_settings->value("cached") == "true")
71     if(word.indexOf("*")==-1 && word.indexOf("?")==-1 && word.indexOf("_")==-1
72        && word.indexOf("%")==-1)
73         word+="*";
74     if(isCached())
75         return searchWordListCache(word,limit);
76     return searchWordListFile(word, limit);
77 }
78
79 QList<Translation*> XdxfPlugin::searchWordListCache(QString word, int limit) {
80
81     QSet<Translation*> translations;
82     QString cacheFilePath = _settings->value("cache_path");
83         db.setDatabaseName(cacheFilePath);
84         if(!db.open()) {
85             qDebug() << "Database error" << db.lastError().text() << endl;
86             return searchWordListFile(word, limit);
87         }
88
89         stopped = false;
90         if(word.indexOf("*")==-1 && word.indexOf("?")== 0)
91             word+="%";
92         word = word.replace("*", "%");
93         word = word.replace("?", "_");
94         word = removeAccents(word);
95         qDebug() << word;
96
97         QSqlQuery cur(db);
98         cur.prepare("select word from dict where word like ? limit ?");
99         cur.addBindValue(word);
100         cur.addBindValue(limit);
101         cur.exec();
102         while(cur.next())
103             translations.insert(new TranslationXdxf(cur.value(0).toString(),
104                                                     _infoNote, this));
105         return translations.toList();
106 }
107
108
109
110 QList<Translation*> XdxfPlugin::searchWordListFile(QString word, int limit) {
111     QSet<Translation*> translations;
112     QFile dictionaryFile(path);
113
114     word = removeAccents(word);
115
116     stopped = false;
117     QRegExp regWord(word);
118     regWord.setCaseSensitivity(Qt::CaseInsensitive);
119     regWord.setPatternSyntax(QRegExp::Wildcard);
120     if(!dictionaryFile.open(QFile::ReadOnly | QFile::Text)) {
121         qDebug()<<"Error: could not open file";
122         return translations.toList();
123     }
124
125     QXmlStreamReader dictionaryReader(&dictionaryFile);
126     /*search words list*/
127     QString a;
128     int i=0;
129     while(!dictionaryReader.atEnd() && !stopped){
130         dictionaryReader.readNextStartElement();
131         if(dictionaryReader.name()=="ar"){
132             while(dictionaryReader.name()!="k" && !dictionaryReader.atEnd())
133                 dictionaryReader.readNextStartElement();
134             if(!dictionaryReader.atEnd())
135                 a = dictionaryReader.readElementText();
136             if(regWord.exactMatch(removeAccents(a)) && (i<limit || limit==0)) {
137                 bool ok=true;
138                 Translation *tran;
139                 foreach(tran,translations) {
140                     if(tran->key()==a)
141                         ok=false;  /*if key word is in the dictionary more that one */
142                 }
143                 if(ok)  /*add key word to list*/
144                     translations<<(new TranslationXdxf(a,_infoNote,this));
145                 i++;
146                 if(i>=limit && limit!=0)
147                     break;
148             }
149         }
150         this->thread()->yieldCurrentThread();
151     }
152     stopped=false;
153     dictionaryFile.close();
154     return translations.toList();
155 }
156
157 QString XdxfPlugin::search(QString key) {
158 //    if(_settings->value("cached") == "true")
159     if(isCached())
160         return searchCache(key);
161     return searchFile(key);
162 }
163
164
165
166 QString XdxfPlugin::searchCache(QString key) {
167     QString result;
168     QString cacheFilePath = _settings->value("cache_path");
169     db.setDatabaseName(cacheFilePath);
170
171     if(!db.open()) {
172         qDebug() << "Database error" << db.lastError().text() << endl;
173         return searchFile(key);
174     }
175
176     QSqlQuery cur(db);
177     cur.prepare("select translation from dict where word like ? limit 1");
178     cur.addBindValue(key);
179     cur.exec();
180     if(cur.next())
181         result = cur.value(0).toString();
182     return result;
183
184 }
185
186
187
188
189 QString XdxfPlugin::searchFile(QString key) {
190     QFile dictionaryFile(path);
191     QString resultString("");
192     if(!dictionaryFile.open(QFile::ReadOnly | QFile::Text)) {
193         qDebug()<<"Error: could not open file";
194         return "";
195     }
196     QXmlStreamReader dictionaryReader(&dictionaryFile);
197
198
199     QString a;
200
201     bool match =false;
202     stopped = false;
203     while (!dictionaryReader.atEnd()&& !stopped) {
204         dictionaryReader.readNext();
205         if(dictionaryReader.tokenType() == QXmlStreamReader::StartElement) {
206             if(dictionaryReader.name()=="k") {
207                 a = dictionaryReader.readElementText();
208                 if(a==key)
209                     match = true;
210             }
211         }
212         else if(dictionaryReader.tokenType() == QXmlStreamReader::Characters) {
213             if(match) {
214                 QString temp(dictionaryReader.text().toString());
215                 temp.replace("\n","");
216                 if(temp == ""){
217                     while(dictionaryReader.name()!="ar"&&
218                                 !dictionaryReader.atEnd()){
219                         dictionaryReader.readNext();
220                         temp+=dictionaryReader.text().toString();
221                     }
222                 }
223                 resultString+=temp.replace("\n","")+"\n";
224                 match=false;
225             }
226         }
227         this->thread()->yieldCurrentThread();
228     }
229     stopped=false;
230     dictionaryFile.close();
231     return resultString;
232 }
233
234 void XdxfPlugin::stop() {
235     stopped=true;
236 }
237
238 DictDialog* XdxfPlugin::dictDialog() {
239      return _dictDialog;
240 }
241
242 void XdxfPlugin::setPath(QString path){
243     this->path=path;
244     _settings->setValue("path",path);
245     //getDictionaryInfo();
246 }
247
248
249 CommonDictInterface* XdxfPlugin::getNew(const Settings *settings) const {
250     XdxfPlugin *plugin = new XdxfPlugin();
251     if(settings){
252         plugin->setPath(settings->value("path"));
253
254         QStringList list = settings->keys();
255         foreach(QString key, list)
256             plugin->settings()->setValue(key, settings->value(key));
257
258
259         plugin->db_name = plugin->_settings->value("type")
260                + plugin->_settings->value("path");
261         plugin->db = QSqlDatabase::addDatabase("QSQLITE", plugin->db_name);
262
263         if(settings->value("cached").isEmpty() &&
264            settings->value("generateCache") == "true") {
265             plugin->makeCache("");
266         }
267     }
268
269     plugin->getDictionaryInfo();
270     return  plugin;
271 }
272
273 bool XdxfPlugin::isAvailable() const {
274     return true;
275 }
276
277 void XdxfPlugin::setHash(uint _hash) {
278     this->_hash=_hash;
279 }
280
281 uint XdxfPlugin::hash() const {
282    return _hash;
283 }
284
285 Settings* XdxfPlugin::settings() {
286     return _settings;
287 }
288
289 bool XdxfPlugin::isCached() {
290     if(_settings->value("cached") == "true")
291         return true;
292     return false;
293 }
294
295 void XdxfPlugin::setSettings(Settings *settings) {
296
297     QString oldPath = _settings->value("path");
298     if(oldPath != settings->value("path")) {
299         setPath(settings->value("path"));
300     }
301
302     if((_settings->value("cached") == "false" ||
303         _settings->value("cached").isEmpty()) &&
304        settings->value("generateCache") == "true") {
305         makeCache("");
306     }
307     else {
308        _settings->setValue("cached", "false");
309     }
310
311     emit settingsChanged();
312 }
313
314
315 void XdxfPlugin::getDictionaryInfo() {
316     QFile dictionaryFile(path);
317     if(!dictionaryFile.open(QFile::ReadOnly | QFile::Text)) {
318         qDebug()<<"Error: could not open file";
319         return;
320     }
321
322     QXmlStreamReader dictionaryReader(&dictionaryFile);
323     dictionaryReader.readNextStartElement();
324     if(dictionaryReader.name()=="xdxf") {
325       if(dictionaryReader.attributes().hasAttribute("lang_from"))
326         _langFrom = dictionaryReader.attributes().value("lang_from").toString();
327       if(dictionaryReader.attributes().hasAttribute("lang_to"))
328         _langTo = dictionaryReader.attributes().value("lang_to").toString();
329     }
330     dictionaryReader.readNextStartElement();
331     if(dictionaryReader.name()=="full_name")
332         _name=dictionaryReader.readElementText();
333     dictionaryReader.readNextStartElement();
334     if(dictionaryReader.name()=="description")
335         _infoNote=dictionaryReader.readElementText();
336
337     dictionaryFile.close();
338 }
339
340 QString XdxfPlugin::removeAccents(QString string) {
341     string = string.replace(QString::fromUtf8("ł"), "l", Qt::CaseInsensitive);
342     QString normalized = string.normalized(QString::NormalizationForm_D);
343     normalized = normalized;
344     for(int i=0; i<normalized.size(); i++) {
345         if( !normalized[i].isLetterOrNumber() &&
346             !normalized[i].isSpace() &&
347             !normalized[i].isDigit() &&
348             normalized[i] != '*' &&
349             normalized[i] != '%' &&
350             normalized[i] != '_' &&
351             normalized[i] != '?' ) {
352             normalized.remove(i,1);
353         }
354     }
355     return normalized;
356 }
357
358 QIcon* XdxfPlugin::icon() {
359     return &_icon;
360 }
361
362 int XdxfPlugin::countWords() {
363     if(_wordsCount > 0)
364         return _wordsCount;
365
366     QFile dictionaryFile(path);
367     if(!dictionaryFile.open(QFile::ReadOnly | QFile::Text)) {
368         qDebug()<<"Error: could not open file";
369         return -1;
370     }
371
372     dictionaryFile.seek(0);
373
374     long wordsCount = 0;
375
376     QString line;
377     while(!dictionaryFile.atEnd()) {
378         line = dictionaryFile.readLine();
379         if(line.contains("<k>")) {
380             wordsCount++;
381         }
382     }
383     _wordsCount = wordsCount;
384     dictionaryFile.close();
385     return wordsCount;
386 }
387
388
389
390 bool XdxfPlugin::makeCache(QString dir) {
391     cachingDialog->setVisible(true);
392     QCoreApplication::processEvents();
393     stopped = false;
394     QFileInfo dictFileN(_settings->value("path"));
395     QString cachePathN;
396     cachePathN = QDir::homePath() + "/.mdictionary/"
397                  + dictFileN.completeBaseName() + ".cache";
398
399     QFile dictionaryFile(dictFileN.filePath());
400
401
402     if (!dictionaryFile.open(QFile::ReadOnly | QFile::Text)) {
403         return 0;
404     }
405
406     QXmlStreamReader reader(&dictionaryFile);
407
408
409     db.setDatabaseName(cachePathN);
410     if(!db.open()) {
411         qDebug() << "Database error" << endl;
412         return false;
413     }
414     QCoreApplication::processEvents();
415     QSqlQuery cur(db);
416     cur.exec("PRAGMA synchronous = 0");
417     cur.exec("drop table dict");
418     QCoreApplication::processEvents();
419     cur.exec("create table dict(word text ,translation text)");
420     int counter = 0;
421     cur.exec("BEGIN;");
422
423     QString a;
424     bool match = false;
425     QTime timer;
426     timer.start();
427     countWords();
428
429     int lastProg = -1;
430
431
432     counter=0;
433     while (!reader.atEnd() && !stopped) {
434
435         QCoreApplication::processEvents();
436        // usleep(50);
437         reader.readNext();
438
439         if(reader.tokenType() == QXmlStreamReader::StartElement) {
440             if(reader.name()=="k"){
441                 a = reader.readElementText();
442                 match = true;
443             }
444         }
445         else if(reader.tokenType() == QXmlStreamReader::Characters) {
446              if(match) {
447                 QString temp(reader.text().toString());
448                 temp.replace("\n","");
449                 if(temp == ""){
450                     while(reader.name()!="ar"&&
451                                 !reader.atEnd()){
452                         reader.readNext();
453                         temp+=reader.text().toString();
454                     }
455                 }
456                 match = false;
457                 cur.prepare("insert into dict values(?,?)");
458                 cur.addBindValue(a);
459                 cur.addBindValue(temp);
460                 cur.exec();
461                 counter++;
462                 int prog = counter*100/_wordsCount;
463                 if(prog % 5 == 0 && lastProg != prog) {
464                     Q_EMIT updateCachingProgress(prog,
465                                                  timer.restart());
466                     lastProg = prog;
467                 }
468             }
469
470         }
471     }
472
473     cur.exec("END;");
474     cur.exec("select count(*) from dict");
475
476     countWords();
477     cachingDialog->setVisible(false);
478
479     if(!cur.next() || countWords() != cur.value(0).toInt())
480         return false;
481     _settings->setValue("cache_path", cachePathN);
482     _settings->setValue("cached", "true");
483
484     return true;
485 }
486
487
488 Q_EXPORT_PLUGIN2(xdxf, XdxfPlugin)