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 &>(Dialog::controller());
  94 }
  95
  96
  97 void GuiRefDialog::showView()
  98 {
  99         QDialog::show();
 100 }
 101
 102
 103 void GuiRefDialog::changed_adaptor()
 104 {
 105         changed();
 106 }
 107
 108
 109 void GuiRefDialog::gotoClicked()
 110 {
 111         gotoRef();
 112 }
 113
 114 void GuiRefDialog::selectionChanged()
 115 {
 116         if (readOnly())
 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 GuiRefDialog::refHighlighted(QListWidgetItem * sel)
 129 {
 130         if (readOnly())
 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 GuiRefDialog::refSelected(QListWidgetItem * sel)
 152 {
 153         if (readOnly())
 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 GuiRefDialog::sortToggled(bool on)
 169 {
 170         sort_ = on;
 171         redoRefs();
 172 }
 173
 174
 175 void GuiRefDialog::updateClicked()
 176 {
 177         updateRefs();
 178 }
 179
 180
 181 void GuiRefDialog::reset_dialog()
 182 {
 183         at_ref_ = false;
 184         setGotoRef();
 185 }
 186
 187
 188 void GuiRefDialog::closeEvent(QCloseEvent * e)
 189 {
 190         slotWMHide();
 191         reset_dialog();
 192         e->accept();
 193 }
 194
 195
 196 void GuiRefDialog::update_contents()
 197 {
 198         InsetCommandParams const & params = controller().params();
 199
 200         int orig_type = typeCO->currentIndex();
 201
 202         referenceED->setText(toqstr(params["reference"]));
 203
 204         nameED->setText(toqstr(params["name"]));
 205         nameED->setReadOnly(!nameAllowed() && !readOnly());
 206
 207         // restore type settings for new insets
 208         if (params["reference"].empty())
 209                 typeCO->setCurrentIndex(orig_type);
 210         else
 211                 typeCO->setCurrentIndex(InsetRef::getType(params.getCmdName()));
 212         typeCO->setEnabled(typeAllowed() && !readOnly());
 213         if (!typeAllowed())
 214                 typeCO->setCurrentIndex(0);
 215
 216         sortCB->setChecked(sort_);
 217
 218         // insert buffer list
 219         bufferCO->clear();
 220         vector<string> const buffers = controller().getBufferList();
 221         for (vector<string>::const_iterator it = buffers.begin();
 222                 it != buffers.end(); ++it) {
 223                 bufferCO->addItem(toqstr(*it));
 224         }
 225         // restore the buffer combo setting for new insets
 226         if (params["reference"].empty() && restored_buffer_ != -1
 227         && restored_buffer_ < bufferCO->count())
 228                 bufferCO->setCurrentIndex(restored_buffer_);
 229         else
 230                 bufferCO->setCurrentIndex(controller().getBufferNum());
 231
 232         updateRefs();
 233         bc().setValid(false);
 234 }
 235
 236
 237 void GuiRefDialog::applyView()
 238 {
 239         InsetCommandParams & params = controller().params();
 240
 241         last_reference_ = referenceED->text();
 242
 243         params.setCmdName(InsetRef::getName(typeCO->currentIndex()));
 244         params["reference"] = qstring_to_ucs4(last_reference_);
 245         params["name"] = qstring_to_ucs4(nameED->text());
 246
 247         restored_buffer_ = bufferCO->currentIndex();
 248 }
 249
 250
 251 bool GuiRefDialog::nameAllowed()
 252 {
 253         Kernel::DocType const doc_type = kernel().docType();
 254         return doc_type != Kernel::LATEX &&
 255                 doc_type != Kernel::LITERATE;
 256 }
 257
 258
 259 bool GuiRefDialog::typeAllowed()
 260 {
 261         Kernel::DocType const doc_type = kernel().docType();
 262         return doc_type != Kernel::DOCBOOK;
 263 }
 264
 265
 266 void GuiRefDialog::setGoBack()
 267 {
 268         gotoPB->setText(qt_("&Go Back"));
 269         gotoPB->setToolTip("");
 270         gotoPB->setToolTip(qt_("Jump back"));
 271 }
 272
 273
 274 void GuiRefDialog::setGotoRef()
 275 {
 276         gotoPB->setText(qt_("&Go to Label"));
 277         gotoPB->setToolTip("");
 278         gotoPB->setToolTip(qt_("Jump to label"));
 279 }
 280
 281
 282 void GuiRefDialog::gotoRef()
 283 {
 284         string ref(fromqstr(referenceED->text()));
 285
 286         if (at_ref_) {
 287                 // go back
 288                 setGotoRef();
 289                 controller().gotoBookmark();
 290         } else {
 291                 // go to the ref
 292                 setGoBack();
 293                 controller().gotoRef(ref);
 294         }
 295         at_ref_ = !at_ref_;
 296 }
 297
 298
 299 void GuiRefDialog::redoRefs()
 300 {
 301         // Prevent these widgets from emitting any signals whilst
 302         // we modify their state.
 303         refsLW->blockSignals(true);
 304         referenceED->blockSignals(true);
 305         refsLW->setUpdatesEnabled(false);
 306
 307         refsLW->clear();
 308
 309         // need this because Qt will send a highlight() here for
 310         // the first item inserted
 311         QString const oldSelection(referenceED->text());
 312
 313         for (std::vector<docstring>::const_iterator iter = refs_.begin();
 314                 iter != refs_.end(); ++iter) {
 315                 refsLW->addItem(toqstr(*iter));
 316         }
 317
 318         if (sort_)
 319                 refsLW->sortItems();
 320
 321         referenceED->setText(oldSelection);
 322
 323         // restore the last selection or, for new insets, highlight
 324         // the previous selection
 325         if (!oldSelection.isEmpty() || !last_reference_.isEmpty()) {
 326                 bool const newInset = oldSelection.isEmpty();
 327                 QString textToFind = newInset ? last_reference_ : oldSelection;
 328                 bool foundItem = false;
 329                 for (int i = 0; !foundItem && i < refsLW->count(); ++i) {
 330                         QListWidgetItem * item = refsLW->item(i);
 331                         if (textToFind == item->text()) {
 332                                 refsLW->setCurrentItem(item);
 333                                 refsLW->setItemSelected(item, !newInset);
 334                                 //Make sure selected item is visible
 335                                 refsLW->scrollToItem(item);
 336                                 foundItem = true;
 337                         }
 338                 }
 339                 if (foundItem)
 340                         last_reference_ = textToFind;
 341                 else last_reference_ = "";
 342         }
 343         refsLW->setUpdatesEnabled(true);
 344         refsLW->update();
 345
 346         // Re-activate the emission of signals by these widgets.
 347         refsLW->blockSignals(false);
 348         referenceED->blockSignals(false);
 349 }
 350
 351
 352 void GuiRefDialog::updateRefs()
 353 {
 354         refs_.clear();
 355         string const name = controller().getBufferName(bufferCO->currentIndex());
 356         refs_ = controller().getLabelList(name);
 357         sortCB->setEnabled(!refs_.empty());
 358         refsLW->setEnabled(!refs_.empty());
 359         gotoPB->setEnabled(!refs_.empty());
 360         redoRefs();
 361 }
 362
 363
 364 bool GuiRefDialog::isValid()
 365 {
 366         return !referenceED->text().isEmpty();
 367 }
 368
 369 } // namespace frontend
 370 } // namespace lyx
 371
 372 #include "GuiRef_moc.cpp"