src/frontends/qt4/GuiRef.cpp

   1 /**
   2  * \file GuiRef.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author John Levon
   7  * \author Jürgen Spitzmüller
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "GuiRef.h"
  15
  16 #include "Buffer.h"
  17 #include "BufferList.h"
  18 #include "FuncRequest.h"
  19
  20 #include "qt_helpers.h"
  21
  22 #include "insets/InsetRef.h"
  23
  24 #include "support/FileName.h"
  25 #include "support/FileNameList.h"
  26 #include "support/filetools.h" // makeAbsPath, makeDisplayPath
  27
  28 #include <QLineEdit>
  29 #include <QCheckBox>
  30 #include <QListWidget>
  31 #include <QListWidgetItem>
  32 #include <QPushButton>
  33 #include <QToolTip>
  34 #include <QCloseEvent>
  35
  36 using namespace std;
  37 using namespace lyx::support;
  38
  39 namespace lyx {
  40 namespace frontend {
  41
  42 GuiRef::GuiRef(GuiView & lv)
  43         : GuiDialog(lv, "ref", qt_("Cross-reference")),
  44           params_(insetCode("ref"))
  45 {
  46         setupUi(this);
  47
  48         sort_ = false;
  49         at_ref_ = false;
  50
  51         //FIXME: when/if we support the xr package for cross-reference
  52         //between independant files. Those can be re-enabled.
  53         refsL->setEnabled(false);
  54         refsL->hide();
  55         bufferCO->setEnabled(false);
  56         bufferCO->hide();
  57
  58         connect(okPB, SIGNAL(clicked()), this, SLOT(slotOK()));
  59         connect(applyPB, SIGNAL(clicked()), this, SLOT(slotApply()));
  60         connect(closePB, SIGNAL(clicked()), this, SLOT(slotClose()));
  61         connect(closePB, SIGNAL(clicked()), this, SLOT(reset_dialog()));
  62         connect(this, SIGNAL(rejected()), this, SLOT(dialog_rejected()));
  63
  64         connect(typeCO, SIGNAL(activated(int)),
  65                 this, SLOT(changed_adaptor()));
  66         connect(referenceED, SIGNAL(textChanged(QString)),
  67                 this, SLOT(changed_adaptor()));
  68         connect(nameED, SIGNAL(textChanged(QString)),
  69                 this, SLOT(changed_adaptor()));
  70         connect(refsLW, SIGNAL(itemClicked(QListWidgetItem *)),
  71                 this, SLOT(refHighlighted(QListWidgetItem *)));
  72         connect(refsLW, SIGNAL(itemSelectionChanged()),
  73                 this, SLOT(selectionChanged()));
  74         connect(refsLW, SIGNAL(itemActivated(QListWidgetItem *)),
  75                 this, SLOT(refSelected(QListWidgetItem *)));
  76         connect(sortCB, SIGNAL(clicked(bool)),
  77                 this, SLOT(sortToggled(bool)));
  78         connect(gotoPB, SIGNAL(clicked()),
  79                 this, SLOT(gotoClicked()));
  80         connect(updatePB, SIGNAL(clicked()),
  81                 this, SLOT(updateClicked()));
  82         connect(bufferCO, SIGNAL(activated(int)),
  83                 this, SLOT(updateClicked()));
  84
  85         setFocusProxy(refsLW);
  86
  87         bc().setPolicy(ButtonPolicy::NoRepeatedApplyReadOnlyPolicy);
  88         bc().setOK(okPB);
  89         bc().setApply(applyPB);
  90         bc().setCancel(closePB);
  91         bc().addReadOnly(refsLW);
  92         bc().addReadOnly(sortCB);
  93         bc().addReadOnly(nameED);
  94         bc().addReadOnly(referenceED);
  95         bc().addReadOnly(typeCO);
  96         bc().addReadOnly(bufferCO);
  97
  98         restored_buffer_ = -1;
  99 }
 100
 101
 102 void GuiRef::changed_adaptor()
 103 {
 104         changed();
 105 }
 106
 107
 108 void GuiRef::gotoClicked()
 109 {
 110         gotoRef();
 111 }
 112
 113
 114 void GuiRef::selectionChanged()
 115 {
 116         if (isBufferReadonly())
 117                 return;
 118
 119         QList<QListWidgetItem *> selections = refsLW->selectedItems();
 120         if (selections.isEmpty())
 121                 return;
 122         QListWidgetItem * sel = selections.first();
 123         refHighlighted(sel);
 124         return;
 125 }
 126
 127
 128 void GuiRef::refHighlighted(QListWidgetItem * sel)
 129 {
 130         if (isBufferReadonly())
 131                 return;
 132
 133 /*      int const cur_item = refsLW->currentRow();
 134         bool const cur_item_selected = cur_item >= 0 ?
 135                 refsLB->isSelected(cur_item) : false;*/
 136         bool const cur_item_selected = refsLW->isItemSelected(sel);
 137
 138         if (cur_item_selected)
 139                 referenceED->setText(sel->text());
 140
 141         if (at_ref_)
 142                 gotoRef();
 143         gotoPB->setEnabled(true);
 144         if (typeAllowed())
 145                 typeCO->setEnabled(true);
 146         if (nameAllowed())
 147                 nameED->setEnabled(true);
 148 }
 149
 150
 151 void GuiRef::refSelected(QListWidgetItem * sel)
 152 {
 153         if (isBufferReadonly())
 154                 return;
 155
 156 /*      int const cur_item = refsLW->currentRow();
 157         bool const cur_item_selected = cur_item >= 0 ?
 158                 refsLB->isSelected(cur_item) : false;*/
 159         bool const cur_item_selected = refsLW->isItemSelected(sel);
 160
 161         if (cur_item_selected)
 162                 referenceED->setText(sel->text());
 163         // <enter> or double click, inserts ref and closes dialog
 164         slotOK();
 165 }
 166
 167
 168 void GuiRef::sortToggled(bool on)
 169 {
 170         sort_ = on;
 171         redoRefs();
 172 }
 173
 174
 175 void GuiRef::updateClicked()
 176 {
 177         updateRefs();
 178 }
 179
 180
 181 void GuiRef::dialog_rejected()
 182 {
 183         reset_dialog();
 184         // We have to do this manually, instead of calling slotClose(), because
 185         // the dialog has already been made invisible before rejected() triggers.
 186         Dialog::disconnect();
 187 }
 188
 189
 190 void GuiRef::reset_dialog()
 191 {
 192         at_ref_ = false;
 193         setGotoRef();
 194 }
 195
 196
 197 void GuiRef::closeEvent(QCloseEvent * e)
 198 {
 199         slotClose();
 200         reset_dialog();
 201         e->accept();
 202 }
 203
 204
 205 void GuiRef::updateContents()
 206 {
 207         int orig_type = typeCO->currentIndex();
 208
 209         referenceED->setText(toqstr(params_["reference"]));
 210
 211         nameED->setText(toqstr(params_["name"]));
 212         nameED->setReadOnly(!nameAllowed() && !isBufferReadonly());
 213
 214         // restore type settings for new insets
 215         if (params_["reference"].empty())
 216                 typeCO->setCurrentIndex(orig_type);
 217         else
 218                 typeCO->setCurrentIndex(InsetRef::getType(params_.getCmdName()));
 219         typeCO->setEnabled(typeAllowed() && !isBufferReadonly());
 220         if (!typeAllowed())
 221                 typeCO->setCurrentIndex(0);
 222
 223         sortCB->setChecked(sort_);
 224
 225         // insert buffer list
 226         bufferCO->clear();
 227         FileNameList const & buffers = theBufferList().fileNames();
 228         for (FileNameList::const_iterator it = buffers.begin();
 229              it != buffers.end(); ++it) {
 230                 bufferCO->addItem(toqstr(makeDisplayPath(it->absFilename())));
 231         }
 232
 233         // restore the buffer combo setting for new insets
 234         if (params_["reference"].empty() && restored_buffer_ != -1
 235             && restored_buffer_ < bufferCO->count())
 236                 bufferCO->setCurrentIndex(restored_buffer_);
 237         else {
 238                 int num = theBufferList().bufferNum(buffer().fileName());
 239                 bufferCO->setCurrentIndex(num);
 240         }
 241
 242         updateRefs();
 243         bc().setValid(false);
 244 }
 245
 246
 247 void GuiRef::applyView()
 248 {
 249         last_reference_ = referenceED->text();
 250
 251         params_.setCmdName(InsetRef::getName(typeCO->currentIndex()));
 252         params_["reference"] = qstring_to_ucs4(last_reference_);
 253         params_["name"] = qstring_to_ucs4(nameED->text());
 254
 255         restored_buffer_ = bufferCO->currentIndex();
 256 }
 257
 258
 259 bool GuiRef::nameAllowed()
 260 {
 261         KernelDocType const doc_type = docType();
 262         return doc_type != LATEX && doc_type != LITERATE;
 263 }
 264
 265
 266 bool GuiRef::typeAllowed()
 267 {
 268         return docType() != DOCBOOK;
 269 }
 270
 271
 272 void GuiRef::setGoBack()
 273 {
 274         gotoPB->setText(qt_("&Go Back"));
 275         gotoPB->setToolTip("");
 276         gotoPB->setToolTip(qt_("Jump back"));
 277 }
 278
 279
 280 void GuiRef::setGotoRef()
 281 {
 282         gotoPB->setText(qt_("&Go to Label"));
 283         gotoPB->setToolTip("");
 284         gotoPB->setToolTip(qt_("Jump to label"));
 285 }
 286
 287
 288 void GuiRef::gotoRef()
 289 {
 290         string ref = fromqstr(referenceED->text());
 291
 292         if (at_ref_) {
 293                 // go back
 294                 setGotoRef();
 295                 gotoBookmark();
 296         } else {
 297                 // go to the ref
 298                 setGoBack();
 299                 gotoRef(ref);
 300         }
 301         at_ref_ = !at_ref_;
 302 }
 303
 304
 305 void GuiRef::redoRefs()
 306 {
 307         // Prevent these widgets from emitting any signals whilst
 308         // we modify their state.
 309         refsLW->blockSignals(true);
 310         referenceED->blockSignals(true);
 311         refsLW->setUpdatesEnabled(false);
 312
 313         refsLW->clear();
 314
 315         // need this because Qt will send a highlight() here for
 316         // the first item inserted
 317         QString const oldSelection(referenceED->text());
 318
 319         for (vector<docstring>::const_iterator iter = refs_.begin();
 320                 iter != refs_.end(); ++iter) {
 321                 refsLW->addItem(toqstr(*iter));
 322         }
 323
 324         if (sort_)
 325                 refsLW->sortItems();
 326
 327         referenceED->setText(oldSelection);
 328
 329         // restore the last selection or, for new insets, highlight
 330         // the previous selection
 331         if (!oldSelection.isEmpty() || !last_reference_.isEmpty()) {
 332                 bool const newInset = oldSelection.isEmpty();
 333                 QString textToFind = newInset ? last_reference_ : oldSelection;
 334                 last_reference_.clear();
 335                 for (int i = 0; i != refsLW->count(); ++i) {
 336                         QListWidgetItem * item = refsLW->item(i);
 337                         if (textToFind == item->text()) {
 338                                 refsLW->setCurrentItem(item);
 339                                 refsLW->setItemSelected(item, !newInset);
 340                                 //Make sure selected item is visible
 341                                 refsLW->scrollToItem(item);
 342                                 last_reference_ = textToFind;
 343                                 break;
 344                         }
 345                 }
 346         }
 347         refsLW->setUpdatesEnabled(true);
 348         refsLW->update();
 349
 350         // Re-activate the emission of signals by these widgets.
 351         refsLW->blockSignals(false);
 352         referenceED->blockSignals(false);
 353 }
 354
 355
 356 void GuiRef::updateRefs()
 357 {
 358         refs_.clear();
 359         FileName const & name = theBufferList().fileNames()[bufferCO->currentIndex()];
 360         Buffer const * buf = theBufferList().getBuffer(name);
 361         buf->getLabelList(refs_);
 362         sortCB->setEnabled(!refs_.empty());
 363         refsLW->setEnabled(!refs_.empty());
 364         // refsLW should only be the focus proxy when it is enabled
 365         setFocusProxy(refs_.empty() ? 0 : refsLW);
 366         gotoPB->setEnabled(!refs_.empty());
 367         redoRefs();
 368 }
 369
 370
 371 bool GuiRef::isValid()
 372 {
 373         return !referenceED->text().isEmpty();
 374 }
 375
 376
 377 void GuiRef::gotoRef(string const & ref)
 378 {
 379         dispatch(FuncRequest(LFUN_BOOKMARK_SAVE, "0"));
 380         dispatch(FuncRequest(LFUN_LABEL_GOTO, ref));
 381 }
 382
 383
 384 void GuiRef::gotoBookmark()
 385 {
 386         dispatch(FuncRequest(LFUN_BOOKMARK_GOTO, "0"));
 387 }
 388
 389
 390 bool GuiRef::initialiseParams(std::string const & data)
 391 {
 392         InsetCommand::string2params("ref", data, params_);
 393         return true;
 394 }
 395
 396
 397 void GuiRef::dispatchParams()
 398 {
 399         std::string const lfun = InsetCommand::params2string("ref", params_);
 400         dispatch(FuncRequest(getLfun(), lfun));
 401 }
 402
 403
 404
 405 Dialog * createGuiRef(GuiView & lv) { return new GuiRef(lv); }
 406
 407
 408 } // namespace frontend
 409 } // namespace lyx
 410
 411 #include "GuiRef_moc.cpp"