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 "ControlRef.h"
  17 #include "qt_helpers.h"
  18
  19 #include "insets/InsetRef.h"
  20
  21 #include <QLineEdit>
  22 #include <QCheckBox>
  23 #include <QListWidget>
  24 #include <QListWidgetItem>
  25 #include <QPushButton>
  26 #include <QToolTip>
  27 #include <QCloseEvent>
  28
  29
  30 using std::vector;
  31 using std::string;
  32
  33
  34 namespace lyx {
  35 namespace frontend {
  36
  37 GuiRefDialog::GuiRefDialog(LyXView & lv)
  38         : GuiDialog(lv, "ref")
  39 {
  40         setupUi(this);
  41         setController(new ControlRef(*this));
  42         setViewTitle(_("Cross-reference"));
  43
  44         sort_ = false;
  45         at_ref_ = false;
  46
  47         connect(okPB, SIGNAL(clicked()), this, SLOT(slotOK()));
  48         connect(applyPB, SIGNAL(clicked()), this, SLOT(slotApply()));
  49         connect(closePB, SIGNAL(clicked()), this, SLOT(slotClose()));
  50         connect(closePB, SIGNAL(clicked()), this, SLOT(reset_dialog()));
  51         connect(this, SIGNAL(rejected()), this, SLOT(reset_dialog()));
  52
  53         connect(typeCO, SIGNAL(activated(int)),
  54                 this, SLOT(changed_adaptor()));
  55         connect(referenceED, SIGNAL(textChanged(const QString &)),
  56                 this, SLOT(changed_adaptor()));
  57         connect(nameED, SIGNAL(textChanged(const QString &)),
  58                 this, SLOT(changed_adaptor()));
  59         connect(refsLW, SIGNAL(itemClicked(QListWidgetItem *)),
  60                 this, SLOT(refHighlighted(QListWidgetItem *)));
  61         connect(refsLW, SIGNAL(itemSelectionChanged()),
  62                 this, SLOT(selectionChanged()));
  63         connect(refsLW, SIGNAL(itemActivated(QListWidgetItem *)),
  64                 this, SLOT(refSelected(QListWidgetItem *)));
  65         connect(sortCB, SIGNAL(clicked(bool)),
  66                 this, SLOT(sortToggled(bool)));
  67         connect(gotoPB, SIGNAL(clicked()),
  68                 this, SLOT(gotoClicked()));
  69         connect(updatePB, SIGNAL(clicked()),
  70                 this, SLOT(updateClicked()));
  71         connect(bufferCO, SIGNAL(activated(int)),
  72                 this, SLOT(updateClicked()));
  73
  74         setFocusProxy(refsLW);
  75
  76         bc().setPolicy(ButtonPolicy::NoRepeatedApplyReadOnlyPolicy);
  77         bc().setOK(okPB);
  78         bc().setApply(applyPB);
  79         bc().setCancel(closePB);
  80         bc().addReadOnly(refsLW);
  81         bc().addReadOnly(sortCB);
  82         bc().addReadOnly(nameED);
  83         bc().addReadOnly(referenceED);
  84         bc().addReadOnly(typeCO);
  85         bc().addReadOnly(bufferCO);
  86
  87         restored_buffer_ = -1;
  88 }
  89
  90
  91 ControlRef & GuiRefDialog::controller() const
  92 {
  93         return static_cast<ControlRef &>(GuiDialog::controller());
  94 }
  95
  96
  97 void GuiRefDialog::changed_adaptor()
  98 {
  99         changed();
 100 }
 101
 102
 103 void GuiRefDialog::gotoClicked()
 104 {
 105         gotoRef();
 106 }
 107
 108 void GuiRefDialog::selectionChanged()
 109 {
 110         if (readOnly())
 111                 return;
 112
 113         QList<QListWidgetItem *> selections = refsLW->selectedItems();
 114         if (selections.isEmpty())
 115                 return;
 116         QListWidgetItem * sel = selections.first();
 117         refHighlighted(sel);
 118         return;
 119 }
 120
 121
 122 void GuiRefDialog::refHighlighted(QListWidgetItem * sel)
 123 {
 124         if (readOnly())
 125                 return;
 126
 127 /*      int const cur_item = refsLW->currentRow();
 128         bool const cur_item_selected = cur_item >= 0 ?
 129                 refsLB->isSelected(cur_item) : false;*/
 130         bool const cur_item_selected = refsLW->isItemSelected(sel);
 131
 132         if (cur_item_selected)
 133                 referenceED->setText(sel->text());
 134
 135         if (at_ref_)
 136                 gotoRef();
 137         gotoPB->setEnabled(true);
 138         if (typeAllowed())
 139                 typeCO->setEnabled(true);
 140         if (nameAllowed())
 141                 nameED->setEnabled(true);
 142 }
 143
 144
 145 void GuiRefDialog::refSelected(QListWidgetItem * sel)
 146 {
 147         if (readOnly())
 148                 return;
 149
 150 /*      int const cur_item = refsLW->currentRow();
 151         bool const cur_item_selected = cur_item >= 0 ?
 152                 refsLB->isSelected(cur_item) : false;*/
 153         bool const cur_item_selected = refsLW->isItemSelected(sel);
 154
 155         if (cur_item_selected)
 156                 referenceED->setText(sel->text());
 157         // <enter> or double click, inserts ref and closes dialog
 158         slotOK();
 159 }
 160
 161
 162 void GuiRefDialog::sortToggled(bool on)
 163 {
 164         sort_ = on;
 165         redoRefs();
 166 }
 167
 168
 169 void GuiRefDialog::updateClicked()
 170 {
 171         updateRefs();
 172 }
 173
 174
 175 void GuiRefDialog::reset_dialog()
 176 {
 177         at_ref_ = false;
 178         setGotoRef();
 179 }
 180
 181
 182 void GuiRefDialog::closeEvent(QCloseEvent * e)
 183 {
 184         slotClose();
 185         reset_dialog();
 186         e->accept();
 187 }
 188
 189
 190 void GuiRefDialog::update_contents()
 191 {
 192         InsetCommandParams const & params = controller().params();
 193
 194         int orig_type = typeCO->currentIndex();
 195
 196         referenceED->setText(toqstr(params["reference"]));
 197
 198         nameED->setText(toqstr(params["name"]));
 199         nameED->setReadOnly(!nameAllowed() && !readOnly());
 200
 201         // restore type settings for new insets
 202         if (params["reference"].empty())
 203                 typeCO->setCurrentIndex(orig_type);
 204         else
 205                 typeCO->setCurrentIndex(InsetRef::getType(params.getCmdName()));
 206         typeCO->setEnabled(typeAllowed() && !readOnly());
 207         if (!typeAllowed())
 208                 typeCO->setCurrentIndex(0);
 209
 210         sortCB->setChecked(sort_);
 211
 212         // insert buffer list
 213         bufferCO->clear();
 214         vector<string> const buffers = controller().getBufferList();
 215         for (vector<string>::const_iterator it = buffers.begin();
 216                 it != buffers.end(); ++it) {
 217                 bufferCO->addItem(toqstr(*it));
 218         }
 219         // restore the buffer combo setting for new insets
 220         if (params["reference"].empty() && restored_buffer_ != -1
 221         && restored_buffer_ < bufferCO->count())
 222                 bufferCO->setCurrentIndex(restored_buffer_);
 223         else
 224                 bufferCO->setCurrentIndex(controller().getBufferNum());
 225
 226         updateRefs();
 227         bc().setValid(false);
 228 }
 229
 230
 231 void GuiRefDialog::applyView()
 232 {
 233         InsetCommandParams & params = controller().params();
 234
 235         last_reference_ = referenceED->text();
 236
 237         params.setCmdName(InsetRef::getName(typeCO->currentIndex()));
 238         params["reference"] = qstring_to_ucs4(last_reference_);
 239         params["name"] = qstring_to_ucs4(nameED->text());
 240
 241         restored_buffer_ = bufferCO->currentIndex();
 242 }
 243
 244
 245 bool GuiRefDialog::nameAllowed()
 246 {
 247         KernelDocType const doc_type = controller().docType();
 248         return doc_type != LATEX && doc_type != LITERATE;
 249 }
 250
 251
 252 bool GuiRefDialog::typeAllowed()
 253 {
 254         return controller().docType() != DOCBOOK;
 255 }
 256
 257
 258 void GuiRefDialog::setGoBack()
 259 {
 260         gotoPB->setText(qt_("&Go Back"));
 261         gotoPB->setToolTip("");
 262         gotoPB->setToolTip(qt_("Jump back"));
 263 }
 264
 265
 266 void GuiRefDialog::setGotoRef()
 267 {
 268         gotoPB->setText(qt_("&Go to Label"));
 269         gotoPB->setToolTip("");
 270         gotoPB->setToolTip(qt_("Jump to label"));
 271 }
 272
 273
 274 void GuiRefDialog::gotoRef()
 275 {
 276         string ref = fromqstr(referenceED->text());
 277
 278         if (at_ref_) {
 279                 // go back
 280                 setGotoRef();
 281                 controller().gotoBookmark();
 282         } else {
 283                 // go to the ref
 284                 setGoBack();
 285                 controller().gotoRef(ref);
 286         }
 287         at_ref_ = !at_ref_;
 288 }
 289
 290
 291 void GuiRefDialog::redoRefs()
 292 {
 293         // Prevent these widgets from emitting any signals whilst
 294         // we modify their state.
 295         refsLW->blockSignals(true);
 296         referenceED->blockSignals(true);
 297         refsLW->setUpdatesEnabled(false);
 298
 299         refsLW->clear();
 300
 301         // need this because Qt will send a highlight() here for
 302         // the first item inserted
 303         QString const oldSelection(referenceED->text());
 304
 305         for (std::vector<docstring>::const_iterator iter = refs_.begin();
 306                 iter != refs_.end(); ++iter) {
 307                 refsLW->addItem(toqstr(*iter));
 308         }
 309
 310         if (sort_)
 311                 refsLW->sortItems();
 312
 313         referenceED->setText(oldSelection);
 314
 315         // restore the last selection or, for new insets, highlight
 316         // the previous selection
 317         if (!oldSelection.isEmpty() || !last_reference_.isEmpty()) {
 318                 bool const newInset = oldSelection.isEmpty();
 319                 QString textToFind = newInset ? last_reference_ : oldSelection;
 320                 bool foundItem = false;
 321                 for (int i = 0; !foundItem && i < refsLW->count(); ++i) {
 322                         QListWidgetItem * item = refsLW->item(i);
 323                         if (textToFind == item->text()) {
 324                                 refsLW->setCurrentItem(item);
 325                                 refsLW->setItemSelected(item, !newInset);
 326                                 //Make sure selected item is visible
 327                                 refsLW->scrollToItem(item);
 328                                 foundItem = true;
 329                         }
 330                 }
 331                 if (foundItem)
 332                         last_reference_ = textToFind;
 333                 else last_reference_ = "";
 334         }
 335         refsLW->setUpdatesEnabled(true);
 336         refsLW->update();
 337
 338         // Re-activate the emission of signals by these widgets.
 339         refsLW->blockSignals(false);
 340         referenceED->blockSignals(false);
 341 }
 342
 343
 344 void GuiRefDialog::updateRefs()
 345 {
 346         refs_.clear();
 347         string const name = controller().getBufferName(bufferCO->currentIndex());
 348         refs_ = controller().getLabelList(name);
 349         sortCB->setEnabled(!refs_.empty());
 350         refsLW->setEnabled(!refs_.empty());
 351         gotoPB->setEnabled(!refs_.empty());
 352         redoRefs();
 353 }
 354
 355
 356 bool GuiRefDialog::isValid()
 357 {
 358         return !referenceED->text().isEmpty();
 359 }
 360
 361 } // namespace frontend
 362 } // namespace lyx
 363
 364 #include "GuiRef_moc.cpp"