src/frontends/qt4/GuiCitation.cpp

   1
   2 /**
   3  * \file GuiCitation.cpp
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * \author Angus Leeming
   8  * \author Kalle Dalheimer
   9  * \author Abdelrazak Younes
  10  * \author Richard Heck
  11  *
  12  * Full author contact details are available in file CREDITS.
  13  */
  14
  15 #include <config.h>
  16
  17 #include "GuiCitation.h"
  18
  19 #include "GuiSelectionManager.h"
  20 #include "LyXToolBox.h"
  21 #include "qt_helpers.h"
  22
  23 #include "Buffer.h"
  24 #include "BufferView.h"
  25 #include "BiblioInfo.h"
  26 #include "BufferParams.h"
  27 #include "FuncRequest.h"
  28
  29 #include "insets/InsetCommand.h"
  30
  31 #include "support/debug.h"
  32 #include "support/docstring.h"
  33 #include "support/gettext.h"
  34 #include "support/lstrings.h"
  35
  36 #include <QCloseEvent>
  37 #include <QSettings>
  38 #include <QShowEvent>
  39 #include <QVariant>
  40
  41 #include <vector>
  42 #include <string>
  43
  44 #undef KeyPress
  45
  46 #include "support/regex.h"
  47
  48 #include <algorithm>
  49 #include <string>
  50 #include <vector>
  51
  52 using namespace std;
  53 using namespace lyx::support;
  54
  55 namespace lyx {
  56 namespace frontend {
  57
  58 // FIXME THREAD
  59 // I am guessing that it would not hurt to make these private members.
  60 static vector<string> citeCmds_;
  61 static vector<CitationStyle> citeStyles_;
  62
  63
  64 template<typename String>
  65 static QStringList to_qstring_list(vector<String> const & v)
  66 {
  67         QStringList qlist;
  68
  69         for (size_t i = 0; i != v.size(); ++i) {
  70                 if (v[i].empty())
  71                         continue;
  72                 qlist.append(lyx::toqstr(v[i]));
  73         }
  74         return qlist;
  75 }
  76
  77
  78 static vector<lyx::docstring> to_docstring_vector(QStringList const & qlist)
  79 {
  80         vector<lyx::docstring> v;
  81         for (int i = 0; i != qlist.size(); ++i) {
  82                 if (qlist[i].isEmpty())
  83                         continue;
  84                 v.push_back(lyx::qstring_to_ucs4(qlist[i]));
  85         }
  86         return v;
  87 }
  88
  89
  90 GuiCitation::GuiCitation(GuiView & lv)
  91         : DialogView(lv, "citation", qt_("Citation")),
  92           params_(insetCode("citation"))
  93 {
  94         setupUi(this);
  95
  96         connect(citationStyleCO, SIGNAL(activated(int)),
  97                 this, SLOT(on_citationStyleCO_currentIndexChanged(int)));
  98         connect(fulllistCB, SIGNAL(clicked()),
  99                 this, SLOT(changed()));
 100         connect(forceuppercaseCB, SIGNAL(clicked()),
 101                 this, SLOT(changed()));
 102         connect(textBeforeED, SIGNAL(textChanged(QString)),
 103                 this, SLOT(updateStyles()));
 104         connect(textAfterED, SIGNAL(textChanged(QString)),
 105                 this, SLOT(updateStyles()));
 106         connect(findLE, SIGNAL(returnPressed()),
 107                 this, SLOT(on_searchPB_clicked()));
 108         connect(textBeforeED, SIGNAL(returnPressed()),
 109                 this, SLOT(on_okPB_clicked()));
 110         connect(textAfterED, SIGNAL(returnPressed()),
 111                 this, SLOT(on_okPB_clicked()));
 112
 113         selectionManager = new GuiSelectionManager(availableLV, selectedLV,
 114                         addPB, deletePB, upPB, downPB, &available_model_, &selected_model_);
 115         connect(selectionManager, SIGNAL(selectionChanged()),
 116                 this, SLOT(setCitedKeys()));
 117         connect(selectionManager, SIGNAL(updateHook()),
 118                 this, SLOT(updateControls()));
 119         connect(selectionManager, SIGNAL(okHook()),
 120                 this, SLOT(on_okPB_clicked()));
 121
 122         setFocusProxy(availableLV);
 123 }
 124
 125
 126 GuiCitation::~GuiCitation()
 127 {
 128         delete selectionManager;
 129 }
 130
 131
 132 void GuiCitation::closeEvent(QCloseEvent * e)
 133 {
 134         clearSelection();
 135         DialogView::closeEvent(e);
 136 }
 137
 138
 139 void GuiCitation::applyView()
 140 {
 141         int const choice = max(0, citationStyleCO->currentIndex());
 142         style_ = choice;
 143         bool const full  = fulllistCB->isChecked();
 144         bool const force = forceuppercaseCB->isChecked();
 145
 146         QString const before = textBeforeED->text();
 147         QString const after = textAfterED->text();
 148
 149         applyParams(choice, full, force, before, after);
 150 }
 151
 152
 153 void GuiCitation::showEvent(QShowEvent * e)
 154 {
 155         findLE->clear();
 156         availableLV->setFocus();
 157
 158         // Set the minimal size of the QToolbox. Without this, the size of the
 159         // QToolbox is only determined by values in the ui file (e.g. computed by
 160         // qtcreator) and therefore causes portability and localisation issues. Note
 161         // that the page widgets must have a layout with layoutSizeContraint =
 162         // SetMinimumSize or similar.  KNOWN ISSUE: the calculations are incorrect
 163         // the first time the dialog is shown. This problem is mitigated by the fact
 164         // that LyX remembers the dialog sizes between sessions.
 165         QSize minimum_size = QSize(0,0);
 166         // Compute the max of the minimal sizes of the pages
 167         QWidget * page;
 168         for (int i = 0; (page = citationTB->widget(i)); ++i)
 169                 minimum_size = minimum_size.expandedTo(page->minimumSizeHint());
 170         // Add the height of the tabs
 171         if (citationTB->currentWidget())
 172                 minimum_size.rheight() += citationTB->height() -
 173                         citationTB->currentWidget()->height();
 174         citationTB->setMinimumSize(minimum_size);
 175
 176         DialogView::showEvent(e);
 177 }
 178
 179
 180 void GuiCitation::on_citationTB_currentChanged(int i)
 181 {
 182         if (i == 0)
 183                 findLE->setFocus();
 184         else if (citationStyleCO->isEnabled())
 185                 citationStyleCO->setFocus();
 186         else
 187                 textAfterED->setFocus();
 188 }
 189
 190
 191 void GuiCitation::on_okPB_clicked()
 192 {
 193         applyView();
 194         clearSelection();
 195         hide();
 196 }
 197
 198
 199 void GuiCitation::on_cancelPB_clicked()
 200 {
 201         clearSelection();
 202         hide();
 203 }
 204
 205
 206 void GuiCitation::on_applyPB_clicked()
 207 {
 208         applyView();
 209 }
 210
 211
 212 void GuiCitation::on_restorePB_clicked()
 213 {
 214         init();
 215 }
 216
 217
 218 void GuiCitation::updateControls()
 219 {
 220         BiblioInfo const & bi = bibInfo();
 221         updateControls(bi);
 222 }
 223
 224
 225 // The main point of separating this out is that the fill*() methods
 226 // called in update() do not need to be called for INTERNAL updates,
 227 // such as when addPB is pressed, as the list of fields, entries, etc,
 228 // will not have changed.
 229 void GuiCitation::updateControls(BiblioInfo const & bi)
 230 {
 231         QModelIndex idx = selectionManager->getSelectedIndex();
 232         updateInfo(bi, idx);
 233         selectionManager->update();
 234 }
 235
 236
 237 void GuiCitation::updateFormatting(CitationStyle currentStyle)
 238 {
 239         bool const force = currentStyle.forceUpperCase;
 240         bool const full = currentStyle.fullAuthorList &&
 241                 documentBuffer().params().fullAuthorList();
 242         bool const textbefore = currentStyle.textBefore;
 243         bool const textafter = currentStyle.textAfter;
 244
 245         bool const haveSelection =
 246                 selectedLV->model()->rowCount() > 0;
 247
 248         forceuppercaseCB->setEnabled(force && haveSelection);
 249         fulllistCB->setEnabled(full && haveSelection);
 250         textBeforeED->setEnabled(textbefore && haveSelection);
 251         textBeforeLA->setEnabled(textbefore && haveSelection);
 252         textAfterED->setEnabled(textafter && haveSelection);
 253         textAfterLA->setEnabled(textafter && haveSelection);
 254         citationStyleCO->setEnabled(haveSelection);
 255         citationStyleLA->setEnabled(haveSelection);
 256 }
 257
 258
 259 // Update the styles for the style combo, citationStyleCO, and mark the
 260 // settings as changed. Called upon changing the cited keys (including
 261 // merely reordering the keys) or editing the text before/after fields.
 262 void GuiCitation::updateStyles()
 263 {
 264         BiblioInfo const & bi = bibInfo();
 265         updateStyles(bi);
 266         changed();
 267 }
 268
 269
 270 // Update the styles for the style combo, citationStyleCO.
 271 void GuiCitation::updateStyles(BiblioInfo const & bi)
 272 {
 273         QStringList selected_keys = selected_model_.stringList();
 274         int curr = selectedLV->model()->rowCount() - 1;
 275
 276         if (curr < 0 || selected_keys.empty()) {
 277                 citationStyleCO->clear();
 278                 citationStyleCO->setEnabled(false);
 279                 citationStyleLA->setEnabled(false);
 280                 return;
 281         }
 282
 283         static const size_t max_length = 80;
 284         QStringList sty = citationStyles(bi, max_length);
 285
 286         if (sty.isEmpty()) {
 287                 // some error
 288                 citationStyleCO->setEnabled(false);
 289                 citationStyleLA->setEnabled(false);
 290                 citationStyleCO->clear();
 291                 return;
 292         }
 293
 294         citationStyleCO->blockSignals(true);
 295
 296         // save old index
 297         int const oldIndex = citationStyleCO->currentIndex();
 298         citationStyleCO->clear();
 299         citationStyleCO->insertItems(0, sty);
 300         citationStyleCO->setEnabled(true);
 301         citationStyleLA->setEnabled(true);
 302         // restore old index
 303         if (oldIndex != -1 && oldIndex < citationStyleCO->count())
 304                 citationStyleCO->setCurrentIndex(oldIndex);
 305
 306         citationStyleCO->blockSignals(false);
 307 }
 308
 309
 310 void GuiCitation::fillFields(BiblioInfo const & bi)
 311 {
 312         fieldsCO->blockSignals(true);
 313         int const oldIndex = fieldsCO->currentIndex();
 314         fieldsCO->clear();
 315         QStringList const fields = to_qstring_list(bi.getFields());
 316         fieldsCO->insertItem(0, qt_("All fields"));
 317         fieldsCO->insertItem(1, qt_("Keys"));
 318         fieldsCO->insertItems(2, fields);
 319         if (oldIndex != -1 && oldIndex < fieldsCO->count())
 320                 fieldsCO->setCurrentIndex(oldIndex);
 321         fieldsCO->blockSignals(false);
 322 }
 323
 324
 325 void GuiCitation::fillEntries(BiblioInfo const & bi)
 326 {
 327         entriesCO->blockSignals(true);
 328         int const oldIndex = entriesCO->currentIndex();
 329         entriesCO->clear();
 330         QStringList const entries = to_qstring_list(bi.getEntries());
 331         entriesCO->insertItem(0, qt_("All entry types"));
 332         entriesCO->insertItems(1, entries);
 333         if (oldIndex != -1 && oldIndex < entriesCO->count())
 334                 entriesCO->setCurrentIndex(oldIndex);
 335         entriesCO->blockSignals(false);
 336 }
 337
 338
 339 bool GuiCitation::isSelected(QModelIndex const & idx)
 340 {
 341         QString const str = idx.data().toString();
 342         return selected_model_.stringList().contains(str);
 343 }
 344
 345
 346 void GuiCitation::setButtons()
 347 {
 348         int const srows = selectedLV->model()->rowCount();
 349         applyPB->setEnabled(srows > 0);
 350         okPB->setEnabled(srows > 0);
 351 }
 352
 353
 354 void GuiCitation::updateInfo(BiblioInfo const & bi, QModelIndex const & idx)
 355 {
 356         if (!idx.isValid() || bi.empty()) {
 357                 infoML->document()->clear();
 358                 return;
 359         }
 360
 361         QString const keytxt = toqstr(
 362                 bi.getInfo(qstring_to_ucs4(idx.data().toString()), documentBuffer(), true));
 363         infoML->document()->setHtml(keytxt);
 364 }
 365
 366
 367 void GuiCitation::findText(QString const & text, bool reset)
 368 {
 369         //"All Fields" and "Keys" are the first two
 370         int index = fieldsCO->currentIndex() - 2;
 371         BiblioInfo const & bi = bibInfo();
 372         vector<docstring> const & fields = bi.getFields();
 373         docstring field;
 374
 375         if (index <= -1 || index >= int(fields.size()))
 376                 //either "All Fields" or "Keys" or an invalid value
 377                 field = from_ascii("");
 378         else
 379                 field = fields[index];
 380
 381         //Was it "Keys"?
 382         bool const onlyKeys = index == -1;
 383
 384         //"All Entry Types" is first.
 385         index = entriesCO->currentIndex() - 1;
 386         vector<docstring> const & entries = bi.getEntries();
 387         docstring entry_type;
 388         if (index < 0 || index >= int(entries.size()))
 389                 entry_type = from_ascii("");
 390         else
 391                 entry_type = entries[index];
 392
 393         bool const case_sentitive = caseCB->checkState();
 394         bool const reg_exp = regexCB->checkState();
 395         findKey(bi, text, onlyKeys, field, entry_type,
 396                        case_sentitive, reg_exp, reset);
 397         //FIXME
 398         //It'd be nice to save and restore the current selection in
 399         //availableLV. Currently, we get an automatic reset, since the
 400         //model is reset.
 401
 402         updateControls(bi);
 403 }
 404
 405
 406 void GuiCitation::on_fieldsCO_currentIndexChanged(int /*index*/)
 407 {
 408         findText(findLE->text(), true);
 409 }
 410
 411
 412 void GuiCitation::on_entriesCO_currentIndexChanged(int /*index*/)
 413 {
 414         findText(findLE->text(), true);
 415 }
 416
 417
 418 void GuiCitation::on_citationStyleCO_currentIndexChanged(int index)
 419 {
 420         if (index >= 0 && index < citationStyleCO->count()) {
 421                 vector<CitationStyle> const & styles = citeStyles_;
 422                 updateFormatting(styles[index]);
 423                 changed();
 424         }
 425 }
 426
 427
 428 void GuiCitation::on_findLE_textChanged(const QString & text)
 429 {
 430         bool const searchAsWeGo = (asTypeCB->checkState() == Qt::Checked);
 431         searchPB->setDisabled(text.isEmpty() || searchAsWeGo);
 432         if (!text.isEmpty()) {
 433                 if (searchAsWeGo)
 434                         findText(findLE->text());
 435                 return;
 436         }
 437         findText(findLE->text());
 438         findLE->setFocus();
 439 }
 440
 441 void GuiCitation::on_searchPB_clicked()
 442 {
 443         findText(findLE->text(), true);
 444 }
 445
 446
 447 void GuiCitation::on_caseCB_stateChanged(int)
 448 {
 449         findText(findLE->text());
 450 }
 451
 452
 453 void GuiCitation::on_regexCB_stateChanged(int)
 454 {
 455         findText(findLE->text());
 456 }
 457
 458
 459 void GuiCitation::on_asTypeCB_stateChanged(int)
 460 {
 461         bool const searchAsWeGo = (asTypeCB->checkState() == Qt::Checked);
 462         searchPB->setDisabled(findLE->text().isEmpty() || searchAsWeGo);
 463         if (searchAsWeGo)
 464                 findText(findLE->text(), true);
 465 }
 466
 467
 468 void GuiCitation::changed()
 469 {
 470         setButtons();
 471 }
 472
 473
 474 void GuiCitation::applyParams(int const choice, bool full, bool force,
 475         QString before, QString after)
 476 {
 477         if (cited_keys_.isEmpty())
 478                 return;
 479
 480         vector<CitationStyle> const & styles = citeStyles_;
 481
 482         CitationStyle cs = styles[choice];
 483
 484         if (!cs.textBefore)
 485                 before.clear();
 486         if (!cs.textAfter)
 487                 after.clear();
 488
 489         cs.forceUpperCase &= force;
 490         cs.fullAuthorList &= full;
 491         string const command = citationStyleToString(cs);
 492
 493         params_.setCmdName(command);
 494         params_["key"] = qstring_to_ucs4(cited_keys_.join(","));
 495         params_["before"] = qstring_to_ucs4(before);
 496         params_["after"] = qstring_to_ucs4(after);
 497         dispatchParams();
 498 }
 499
 500
 501 void GuiCitation::clearSelection()
 502 {
 503         cited_keys_.clear();
 504         selected_model_.setStringList(cited_keys_);
 505 }
 506
 507
 508 void GuiCitation::init()
 509 {
 510         // Make the list of all available bibliography keys
 511         BiblioInfo const & bi = bibInfo();
 512         all_keys_ = to_qstring_list(bi.getKeys());
 513         available_model_.setStringList(all_keys_);
 514
 515         // Ditto for the keys cited in this inset
 516         QString str = toqstr(params_["key"]);
 517         if (str.isEmpty())
 518                 cited_keys_.clear();
 519         else
 520                 cited_keys_ = str.split(",");
 521         selected_model_.setStringList(cited_keys_);
 522
 523         // Initialize the drop downs
 524         fillEntries(bi);
 525         fillFields(bi);
 526
 527         // Initialize the citation formatting
 528         string const & cmd = params_.getCmdName();
 529         CitationStyle const cs = citationStyleFromString(cmd);
 530         forceuppercaseCB->setChecked(cs.forceUpperCase);
 531         fulllistCB->setChecked(cs.fullAuthorList &&
 532                 documentBuffer().params().fullAuthorList());
 533         textBeforeED->setText(toqstr(params_["before"]));
 534         textAfterED->setText(toqstr(params_["after"]));
 535
 536         // Update the interface
 537         updateControls(bi);
 538         updateStyles(bi);
 539         if (selected_model_.rowCount()) {
 540                 selectedLV->blockSignals(true);
 541                 selectedLV->setFocus();
 542                 QModelIndex idx = selected_model_.index(0, 0);
 543                 selectedLV->selectionModel()->select(idx,
 544                                 QItemSelectionModel::ClearAndSelect);
 545                 selectedLV->blockSignals(false);
 546
 547                 // Find the citation style
 548                 vector<string> const & cmds = citeCmds_;
 549                 vector<string>::const_iterator cit =
 550                         std::find(cmds.begin(), cmds.end(), cs.cmd);
 551                 int i = 0;
 552                 if (cit != cmds.end())
 553                         i = int(cit - cmds.begin());
 554
 555                 // Set the style combo appropriately
 556                 citationStyleCO->blockSignals(true);
 557                 citationStyleCO->setCurrentIndex(i);
 558                 citationStyleCO->blockSignals(false);
 559                 updateFormatting(citeStyles_[i]);
 560         } else
 561                 availableLV->setFocus();
 562
 563         applyPB->setEnabled(false);
 564         okPB->setEnabled(false);
 565 }
 566
 567
 568 void GuiCitation::findKey(BiblioInfo const & bi,
 569         QString const & str, bool only_keys,
 570         docstring field, docstring entry_type,
 571         bool case_sensitive, bool reg_exp, bool reset)
 572 {
 573         // FIXME THREAD
 574         // Used for optimisation: store last searched string.
 575         static QString last_searched_string;
 576         // Used to disable the above optimisation.
 577         static bool last_case_sensitive;
 578         static bool last_reg_exp;
 579         // Reset last_searched_string in case of changed option.
 580         if (last_case_sensitive != case_sensitive
 581                 || last_reg_exp != reg_exp) {
 582                         LYXERR(Debug::GUI, "GuiCitation::findKey: optimisation disabled!");
 583                 last_searched_string.clear();
 584         }
 585         // save option for next search.
 586         last_case_sensitive = case_sensitive;
 587         last_reg_exp = reg_exp;
 588
 589         Qt::CaseSensitivity qtcase = case_sensitive ?
 590                         Qt::CaseSensitive: Qt::CaseInsensitive;
 591         QStringList keys;
 592         // If new string (str) contains the last searched one...
 593         if (!reset &&
 594                 !last_searched_string.isEmpty() &&
 595                 str.size() > 1 &&
 596                 str.contains(last_searched_string, qtcase))
 597                 // ... then only search within already found list.
 598                 keys = available_model_.stringList();
 599         else
 600                 // ... else search all keys.
 601                 keys = all_keys_;
 602         // save searched string for next search.
 603         last_searched_string = str;
 604
 605         QStringList result;
 606
 607         // First, filter by entry_type, which will be faster than
 608         // what follows, so we may get to do that on less.
 609         vector<docstring> keyVector = to_docstring_vector(keys);
 610         filterByEntryType(bi, keyVector, entry_type);
 611
 612         if (str.isEmpty())
 613                 result = to_qstring_list(keyVector);
 614         else
 615                 result = to_qstring_list(searchKeys(bi, keyVector, only_keys,
 616                         qstring_to_ucs4(str), field, case_sensitive, reg_exp));
 617
 618         available_model_.setStringList(result);
 619 }
 620
 621
 622 QStringList GuiCitation::citationStyles(BiblioInfo const & bi, size_t max_size)
 623 {
 624         docstring const before = qstring_to_ucs4(textBeforeED->text());
 625         docstring const after = qstring_to_ucs4(textAfterED->text());
 626         vector<docstring> const keys = to_docstring_vector(cited_keys_);
 627         vector<CitationStyle> styles = citeStyles_;
 628         // FIXME: pass a dictionary instead of individual before, after, dialog, etc.
 629         vector<docstring> ret = bi.getCiteStrings(keys, styles, documentBuffer(),
 630                 before, after, from_utf8("dialog"), max_size);
 631         return to_qstring_list(ret);
 632 }
 633
 634
 635 void GuiCitation::setCitedKeys()
 636 {
 637         cited_keys_ = selected_model_.stringList();
 638         updateStyles();
 639 }
 640
 641
 642 bool GuiCitation::initialiseParams(string const & data)
 643 {
 644         InsetCommand::string2params(data, params_);
 645         citeCmds_ = documentBuffer().params().citeCommands();
 646         citeStyles_ = documentBuffer().params().citeStyles();
 647         init();
 648         return true;
 649 }
 650
 651
 652 void GuiCitation::clearParams()
 653 {
 654         params_.clear();
 655 }
 656
 657
 658 void GuiCitation::filterByEntryType(BiblioInfo const & bi,
 659         vector<docstring> & keyVector, docstring entry_type)
 660 {
 661         if (entry_type.empty())
 662                 return;
 663
 664         vector<docstring>::iterator it = keyVector.begin();
 665         vector<docstring>::iterator end = keyVector.end();
 666
 667         vector<docstring> result;
 668         for (; it != end; ++it) {
 669                 docstring const key = *it;
 670                 BiblioInfo::const_iterator cit = bi.find(key);
 671                 if (cit == bi.end())
 672                         continue;
 673                 if (cit->second.entryType() == entry_type)
 674                         result.push_back(key);
 675         }
 676         keyVector = result;
 677 }
 678
 679
 680 // Escape special chars.
 681 // All characters are literals except: '.|*?+(){}[]^$\'
 682 // These characters are literals when preceded by a "\", which is done here
 683 // @todo: This function should be moved to support, and then the test in tests
 684 //        should be moved there as well.
 685 static docstring escape_special_chars(docstring const & expr)
 686 {
 687         // Search for all chars '.|*?+(){}[^$]\'
 688         // Note that '[', ']', and '\' must be escaped.
 689         static const lyx::regex reg("[.|*?+(){}^$\\[\\]\\\\]");
 690
 691         // $& is an ECMAScript format expression that expands to all
 692         // of the current match
 693 #if defined(LYX_USE_CXX11) && defined(LYX_USE_STD_REGEX)
 694         // To prefix a matched expression with a single literal backslash, we
 695         // need to escape it for the C++ compiler and use:
 696         // FIXME: UNICODE
 697         return from_utf8(lyx::regex_replace(to_utf8(expr), reg, string("\\$&")));
 698 #else
 699         // A backslash in the format string starts an escape sequence in boost.
 700         // Thus, to prefix a matched expression with a single literal backslash,
 701         // we need to give two backslashes to the regex engine, and escape both
 702         // for the C++ compiler and use:
 703         // FIXME: UNICODE
 704         return from_utf8(lyx::regex_replace(to_utf8(expr), reg, string("\\\\$&")));
 705 #endif
 706 }
 707
 708
 709 vector<docstring> GuiCitation::searchKeys(BiblioInfo const & bi,
 710         vector<docstring> const & keys_to_search, bool only_keys,
 711         docstring const & search_expression, docstring field,
 712         bool case_sensitive, bool regex)
 713 {
 714         vector<docstring> foundKeys;
 715
 716         docstring expr = trim(search_expression);
 717         if (expr.empty())
 718                 return foundKeys;
 719
 720         if (!regex)
 721                 // We must escape special chars in the search_expr so that
 722                 // it is treated as a simple string by lyx::regex.
 723                 expr = escape_special_chars(expr);
 724
 725         lyx::regex reg_exp;
 726         try {
 727                 reg_exp.assign(to_utf8(expr), case_sensitive ?
 728                         lyx::regex_constants::ECMAScript : lyx::regex_constants::icase);
 729         } catch (lyx::regex_error const & e) {
 730                 // lyx::regex throws an exception if the regular expression is not
 731                 // valid.
 732                 LYXERR(Debug::GUI, e.what());
 733                 return vector<docstring>();
 734         }
 735
 736         vector<docstring>::const_iterator it = keys_to_search.begin();
 737         vector<docstring>::const_iterator end = keys_to_search.end();
 738         for (; it != end; ++it ) {
 739                 BiblioInfo::const_iterator info = bi.find(*it);
 740                 if (info == bi.end())
 741                         continue;
 742
 743                 BibTeXInfo const & kvm = info->second;
 744                 string data;
 745                 if (only_keys)
 746                         data = to_utf8(*it);
 747                 else if (field.empty())
 748                         data = to_utf8(*it) + ' ' + to_utf8(kvm.allData());
 749                 else
 750                         data = to_utf8(kvm[field]);
 751
 752                 if (data.empty())
 753                         continue;
 754
 755                 try {
 756                         if (lyx::regex_search(data, reg_exp))
 757                                 foundKeys.push_back(*it);
 758                 }
 759                 catch (lyx::regex_error const & e) {
 760                         LYXERR(Debug::GUI, e.what());
 761                         return vector<docstring>();
 762                 }
 763         }
 764         return foundKeys;
 765 }
 766
 767
 768 void GuiCitation::dispatchParams()
 769 {
 770         std::string const lfun = InsetCommand::params2string(params_);
 771         dispatch(FuncRequest(getLfun(), lfun));
 772 }
 773
 774
 775 BiblioInfo const & GuiCitation::bibInfo() const
 776 {
 777         Buffer const & buf = documentBuffer();
 778         buf.reloadBibInfoCache();
 779         return buf.masterBibInfo();
 780 }
 781
 782
 783 void GuiCitation::saveSession() const
 784 {
 785         Dialog::saveSession();
 786         QSettings settings;
 787         settings.setValue(
 788                 sessionKey() + "/regex", regexCB->isChecked());
 789         settings.setValue(
 790                 sessionKey() + "/casesensitive", caseCB->isChecked());
 791         settings.setValue(
 792                 sessionKey() + "/autofind", asTypeCB->isChecked());
 793 }
 794
 795
 796 void GuiCitation::restoreSession()
 797 {
 798         Dialog::restoreSession();
 799         QSettings settings;
 800         regexCB->setChecked(
 801                 settings.value(sessionKey() + "/regex").toBool());
 802         caseCB->setChecked(
 803                 settings.value(sessionKey() + "/casesensitive").toBool());
 804         asTypeCB->setChecked(
 805                 settings.value(sessionKey() + "/autofind").toBool());
 806 }
 807
 808
 809 Dialog * createGuiCitation(GuiView & lv) { return new GuiCitation(lv); }
 810
 811
 812 } // namespace frontend
 813 } // namespace lyx
 814
 815 #include "moc_GuiCitation.cpp"
 816