dictionary.cpp

   1 // Copyright (c) 2008, Andrew Bécsi (andrewbecsi @ yahoo . co . uk)
   2 //
   3 // This program is free software, released under the GNU General Public License
   4 // and you are welcome to redistribute it under certain conditions.  It comes with
   5 // ABSOLUTELY NO WARRANTY; for details read the GNU General Public License to be
   6 // found in the file "COPYING" distributed with this program, or online at:
   7 // http://www.gnu.org/copyleft/gpl.html
   8 //
   9 // encodig=UTF-8
  10 //
  11
  12
  13 #include "dictionary.h"
  14
  15 Dictionary::Dictionary(QWidget *parent)
  16 : QDialog(parent)
  17 {
  18
  19 //>>version
  20 appver=QString("0.3.5");
  21 //<<version
  22
  23         http = new QHttp(this);
  24         setupUi(this);
  25         enableTranslateButton();
  26         prev->setEnabled(false);
  27         next->setEnabled(false);
  28         deleteHistory->setEnabled(false);
  29
  30
  31 connect(lineEdit, SIGNAL(textChanged(const QString &)),
  32         this, SLOT(enableTranslateButton()));
  33 connect(http, SIGNAL(requestFinished(int, bool)),
  34         this, SLOT(httpRequestFinished(int, bool)));
  35 connect(http, SIGNAL(responseHeaderReceived(const QHttpResponseHeader &)),
  36         this, SLOT(readResponseHeader(const QHttpResponseHeader &)));
  37 connect(pushButton, SIGNAL(clicked()),
  38         this, SLOT(translateClicked()));
  39 connect(pushButton, SIGNAL(clicked()),
  40         this, SLOT(statusChanged()));
  41 connect(dictionaryBox, SIGNAL(currentIndexChanged( int )),
  42         this, SLOT(setDic(int)));
  43 connect(modeBox, SIGNAL(currentIndexChanged( int )),
  44         this, SLOT(setMode(int)));
  45 connect(hitBox, SIGNAL(currentIndexChanged( int )),
  46         this, SLOT(setHits(int)));
  47 connect(aboutButton, SIGNAL(clicked()),
  48         this, SLOT(aboutClicked()));
  49 connect(deleteHistory, SIGNAL(clicked()),
  50         this, SLOT(deleteHistoryClicked()));
  51 connect(prev, SIGNAL(clicked()),
  52         this, SLOT(stepPrev()));
  53 connect(next, SIGNAL(clicked()),
  54         this, SLOT(stepNext()));
  55         //
  56         // initialize UI
  57         //
  58
  59         QStringList labels;
  60         labels << tr("Szó") << tr("Jelentés");
  61         tableWidget->setHorizontalHeaderLabels(labels);
  62 //      tableWidget->horizontalHeader()->setResizeMode(0, QHeaderView::Stretch);
  63         tableWidget->horizontalHeader()->setResizeMode(1, QHeaderView::Stretch);
  64
  65         tableWidget->verticalHeader()->hide();
  66         tableWidget->setShowGrid(true);
  67
  68         szotar="szotarE";
  69         dic="E";
  70         mode="0";
  71         hits="20";
  72
  73
  74 /*
  75 á=%E1
  76 ä=%E4
  77 é=%E9
  78 í=%ED
  79 ó=%F3
  80 ö=%F6
  81 ő=%F5
  82 ú=%FA
  83 ü=%FC
  84 ű=%FB
  85 ß=%DF
  86 */
  87
  88         html_list << "&aacute;" << "&auml;" << "&eacute;" << "&iacute;" << "&oacute;" << "&ouml;" << "&otilde;" << "&uacute;" << "&uuml;"<< "&ucirc;" << "&szlig;";
  89         latin_list << "á" << "ä" << "é" << "í" << "ó" << "ö" << "ő" << "ú" << "ü" << "ű" << "ß";
  90         hex_list << "%E1" << "%E4" << "%E9" << "%ED" << "%F3" << "%F6" << "%F5" << "%FA" << "%FC" << "%FB" << "%DF";
  91 }
  92
  93 void Dictionary::translate(settings &set)
  94 {
  95         if (history.isEmpty()) deleteHistory->setEnabled(false);
  96         else deleteHistory->setEnabled(true);
  97                 lineEdit->selectAll();
  98                 enablePrevButton();
  99                 enableNextButton();
 100
 101         QString word((set.word.split(" ", QString::SkipEmptyParts)).join("+"));
 102
 103
 104         for (int i = 0; i < latin_list.size(); ++i){
 105                 word.replace(latin_list[i],hex_list[i]);
 106         }
 107
 108         QString path("/cgi-bin/"+szotar+"?search_term="+word+"&max_hits="+hits+"&mode="+mode+"&diction="+dic);
 109         QString host("www.cab.u-szeged.hu");
 110         QUrl url;
 111
 112         url.setHost(host);
 113         url.setPath(path);
 114         url.setScheme("http");
 115         http->setHost(url.host());
 116
 117         buffer=new QBuffer();
 118         httpGetId = http->get(url.path(), buffer);
 119
 120         pushButton->setEnabled(false);
 121 }
 122
 123
 124
 125 QStringList Dictionary::filter(QString html,QRegExp rx)
 126 {
 127
 128         QStringList list;
 129         QString str;
 130         int pos = 0;
 131         while ((pos = rx.indexIn(html, pos)) != -1) {
 132                 str = rx.cap(1);
 133                 list.append(str);
 134                 pos += rx.matchedLength();
 135         }
 136
 137         return list;
 138
 139 }
 140
 141 void Dictionary::updateUi(settings &set)
 142 {
 143         lineEdit->setText(set.word);
 144         dictionaryBox->setCurrentIndex(set.dict);
 145         modeBox->setCurrentIndex(set.mode);
 146         hitBox->setCurrentIndex(set.hit);
 147 }
 148
 149 void Dictionary::updateHistory(settings &set)
 150 {
 151
 152         if ( history.isEmpty() )
 153         {
 154                 history.prepend(set);
 155                 hIter = history.begin();
 156         }else if ( !((*history.begin()) == set) ) {
 157                         history.prepend(set);
 158                         hIter = history.begin();
 159                         if (history.size()>20)
 160                         {
 161                                         history.removeLast();
 162                         }
 163         }
 164
 165         enablePrevButton();
 166         enableNextButton();
 167 }
 168
 169 void Dictionary::translateClicked()
 170 {
 171
 172         QString text(lineEdit->text());
 173         settings set(dictionaryBox->currentIndex(),modeBox->currentIndex(), hitBox->currentIndex(), text);
 174         translate(set);
 175         updateHistory(set);
 176 }
 177
 178 void Dictionary::httpRequestFinished(int requestId, bool error)
 179 {
 180
 181         if (requestId != httpGetId)
 182                 return;
 183
 184         buffer->close();
 185
 186         QString str;
 187         QString html;
 188         QStringList word_list;
 189         QStringList meaning_list;
 190
 191
 192         QByteArray result=buffer->data();
 193
 194         QTextStream in(&result);
 195         in.setCodec("ISO 8859-2");
 196
 197         //
 198         // remove multiple whitespace and newline characters
 199         //
 200         while(!in.atEnd()){
 201                 in>>str;
 202                 html.append(str+" ");
 203         }
 204
 205
 206         //
 207         //filtering word data from html string
 208         //
 209
 210         QRegExp rx( "<LI>(.+)--&gt;" );
 211         rx.setCaseSensitivity(Qt::CaseSensitive);
 212         rx.setMinimal( true );
 213
 214         word_list=filter(html,rx);
 215
 216         //
 217         //filtering meaning data from html string
 218         //
 219
 220         rx.setPattern("=[HEG]\">(.+)</A></LI>");
 221         meaning_list=filter(html,rx);
 222
 223         for (int i = 0; i < word_list.size(); ++i){
 224
 225                 QString tmpWord=word_list[i];
 226                 QString tmpMeaning=meaning_list[i];
 227                 for (int j = 0; j < html_list.size(); ++j){
 228                         tmpWord.replace(html_list[j],latin_list[j]);
 229                         tmpMeaning.replace(html_list[j],latin_list[j]);
 230                 }
 231
 232                 tmpWord.remove(QString("<B>"), Qt::CaseInsensitive);
 233                 tmpWord.remove(QString("</B>"), Qt::CaseInsensitive);
 234                 tmpMeaning.remove(QString("<B>"), Qt::CaseInsensitive);
 235                 tmpMeaning.remove(QString("</B>"), Qt::CaseInsensitive);
 236
 237                 word_list.replace(i,tmpWord.toUtf8());
 238                 meaning_list.replace(i,tmpMeaning.toUtf8());
 239         }
 240
 241         fillTable( word_list, meaning_list);
 242
 243         if (error) {
 244         QMessageBox::information(this, tr("HTTP"),
 245                                 tr("<font color=red>A letöltés meghiúsult: %1.</font>")
 246                                 .arg(http->errorString())+tr("<br/>Ellenőrizd az internetkapcsolatod!"));
 247         }
 248
 249 enableTranslateButton();
 250 }
 251
 252 void Dictionary::fillTable(QStringList word_list,QStringList meaning_list)
 253 {
 254
 255         QString found;
 256         found.setNum(word_list.size());
 257         statusLabel->setText(tr("Keresett szó: ")+lineEdit->text()+tr(", listázott találatok száma: ")+found);
 258
 259         if (word_list.size()==0) statusLabel->setText(tr("<font color=red>Nincs találat!</font>"));
 260         tableWidget->setRowCount(word_list.size());
 261
 262
 263         for (int i = 0; i < word_list.size();++i){
 264 //              QStringList meanings;
 265
 266                 tableWidget->setItem(i, 0, new QTableWidgetItem(word_list[i]));
 267                 //meanings << meaning_list[i];
 268                 tableWidget->setItem(i, 1, new QTableWidgetItem(meaning_list[i]));
 269
 270 //              while( (i+1 < word_list.size()) && word_list[i+1] == word_list[i] ){
 271 //                      ++i;
 272 //                      meanings << meaning_list[i];
 273 //              }
 274 //              tableWidget->setItem(row, 1, new QTableWidgetItem(meanings.join("; ")));
 275
 276         }
 277
 278         tableWidget->resizeColumnToContents( 0 );
 279         tableWidget->resizeColumnToContents( 1 );
 280         tableWidget->setSortingEnabled(false);
 281 }
 282
 283 void Dictionary::readResponseHeader(const QHttpResponseHeader &responseHeader)
 284 {
 285 if (responseHeader.statusCode() != 200) {
 286         QMessageBox::information(this, tr("HTTP"),
 287                                 tr("<font color=red>A letöltés meghiúsult: %1.")
 288                                 .arg(responseHeader.reasonPhrase())+tr("<br/>Az adatbázis nem elérhető. Próbáld meg később."));
 289         http->abort();
 290         return;
 291 }
 292 }
 293
 294 void Dictionary::setMode(int index)
 295 {
 296         mode.setNum(index);
 297 }
 298
 299 void Dictionary::setHits(int index)
 300 {
 301         switch(index)
 302         {
 303                 case 0: hits="20";break;
 304                 case 1: hits="50";break;
 305                 case 2: hits="100";break;
 306                 case 3: hits="200";break;
 307         }
 308 }
 309
 310 void Dictionary::setDic(int index)
 311 {
 312         switch(index)
 313         {
 314                 case 0: dic="E";szotar="szotarE";break;
 315                 case 1: dic="H";szotar="szotarE";break;
 316                 case 2: dic="G";szotar="szotarG";break;
 317                 case 3: dic="H";szotar="szotarG";break;
 318         }
 319 }
 320
 321 void Dictionary::statusChanged()
 322 {
 323         statusLabel->setText(tr("<i>Lekérdezés...</i>"));
 324 }
 325
 326 void Dictionary::enableTranslateButton()
 327 {
 328         pushButton->setEnabled(!lineEdit->text().isEmpty());
 329 }
 330
 331 void Dictionary::enablePrevButton()
 332 {
 333         prev->setEnabled( false );
 334
 335         if ( !(history.isEmpty()) && ( history.indexOf(*hIter) < history.size()-1 ) ){
 336                         prev->setEnabled( true );
 337         }
 338 }
 339
 340 void Dictionary::enableNextButton()
 341 {
 342         next->setEnabled( false );
 343
 344         if ( !(history.isEmpty()) && ( history.indexOf(*hIter) > 0 ) ){
 345                         next->setEnabled( true );
 346         }
 347 }
 348
 349 void Dictionary::stepPrev()
 350 {
 351         ++hIter;
 352         updateUi(*hIter);
 353         translate(*hIter);
 354 }
 355
 356 void Dictionary::stepNext()
 357 {
 358         --hIter;
 359         updateUi(*hIter);
 360         translate(*hIter);
 361 }
 362
 363 void Dictionary::deleteHistoryClicked()
 364 {
 365         history.clear();
 366         prev->setEnabled(false);
 367         next->setEnabled(false);
 368         deleteHistory->setEnabled(false);
 369 }
 370 void Dictionary::aboutClicked()
 371 {
 372         aboutButton->setEnabled(false);
 373         QMessageBox::information(this,"Qtdict Információ", "<b>Qtdict v"+appver+"</b>"+tr("<br/><i>© Bécsi András, 2008</i><br/><br/>Egyszerű internetes szótár program, mely a http://www.cab.u-szeged.hu online szótár adatbázist használja.<br/><br/><i>Ez a program a GPL v2 jogi feltételeinek megfelelően használható.</i>"));
 374         aboutButton->setEnabled(true);
 375 }