src/frontends/qt4/LayoutBox.cpp

   1 /**
   2  * \file qt4/LayoutBox.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author John Levon
   8  * \author Jean-Marc Lasgouttes
   9  * \author Angus Leeming
  10  * \author Stefan Schimanski
  11  * \author Abdelrazak Younes
  12  *
  13  * Full author contact details are available in file CREDITS.
  14  */
  15
  16 #include <config.h>
  17
  18 #include "LayoutBox.h"
  19
  20 #include "Action.h"
  21 #include "GuiView.h"
  22 #include "qt_helpers.h"
  23 #include "Toolbars.h"
  24
  25 #include "Buffer.h"
  26 #include "BufferParams.h"
  27 #include "BufferView.h"
  28 #include "Cursor.h"
  29 #include "FuncRequest.h"
  30 #include "FuncStatus.h"
  31 #include "Layout.h"
  32 #include "LyXFunc.h"
  33 #include "LyXRC.h"
  34 #include "Paragraph.h"
  35 #include "TextClass.h"
  36
  37 #include "insets/InsetText.h"
  38
  39 #include "support/debug.h"
  40 #include "support/filetools.h"
  41 #include "support/gettext.h"
  42 #include "support/lstrings.h"
  43
  44 #include <QAbstractItemDelegate>
  45 #include <QAbstractTextDocumentLayout>
  46 #include <QApplication>
  47 #include <QComboBox>
  48 #include <QFontMetrics>
  49 #include <QHeaderView>
  50 #include <QItemDelegate>
  51 #include <QKeyEvent>
  52 #include <QList>
  53 #include <QListView>
  54 #include <QPainter>
  55 #include <QPixmap>
  56 #include <QSettings>
  57 #include <QSortFilterProxyModel>
  58 #include <QStandardItem>
  59 #include <QStandardItemModel>
  60 #include <QString>
  61 #include <QTextDocument>
  62 #include <QTextFrame>
  63 #include <QToolBar>
  64 #include <QVariant>
  65
  66 #include "support/lassert.h"
  67
  68 using namespace std;
  69 using namespace lyx::support;
  70
  71 namespace lyx {
  72 namespace frontend {
  73
  74
  75 class LayoutItemDelegate : public QItemDelegate {
  76 public:
  77         ///
  78         explicit LayoutItemDelegate(LayoutBox * layout)
  79                 : QItemDelegate(layout), layout_(layout)
  80         {}
  81         ///
  82         void paint(QPainter * painter, QStyleOptionViewItem const & option,
  83                 QModelIndex const & index) const;
  84         ///
  85         void drawDisplay(QPainter * painter, QStyleOptionViewItem const & opt,
  86                 const QRect & /*rect*/, const QString & text ) const;
  87         ///
  88         QSize sizeHint(QStyleOptionViewItem const & opt,
  89                 QModelIndex const & index) const;
  90
  91 private:
  92         ///
  93         void drawCategoryHeader(QPainter * painter, QStyleOptionViewItem const & opt,
  94                 QString const & category) const;
  95         ///
  96         QString underlineFilter(QString const & s) const;
  97         ///
  98         LayoutBox * layout_;
  99 };
 100
 101
 102 class GuiLayoutFilterModel : public QSortFilterProxyModel {
 103 public:
 104         ///
 105         GuiLayoutFilterModel(QObject * parent = 0)
 106                 : QSortFilterProxyModel(parent)
 107         {}
 108
 109         ///
 110         void triggerLayoutChange()
 111         {
 112                 layoutAboutToBeChanged();
 113                 layoutChanged();
 114         }
 115 };
 116
 117
 118 /////////////////////////////////////////////////////////////////////
 119 //
 120 // LayoutBox::Private
 121 //
 122 /////////////////////////////////////////////////////////////////////
 123
 124 struct LayoutBox::Private
 125 {
 126         Private(LayoutBox * parent, GuiView & gv) : p(parent), owner_(gv),
 127                 // set the layout model with two columns
 128                 // 1st: translated layout names
 129                 // 2nd: raw layout names
 130                 model_(new QStandardItemModel(0, 2, p)),
 131                 filterModel_(new GuiLayoutFilterModel(p)),
 132                 lastSel_(-1),
 133                 layoutItemDelegate_(new LayoutItemDelegate(parent)),
 134                 visibleCategories_(0), inShowPopup_(false)
 135         {
 136                 filterModel_->setSourceModel(model_);
 137         }
 138
 139         void resetFilter() { setFilter(QString()); }
 140         ///
 141         void setFilter(QString const & s);
 142         ///
 143         void countCategories();
 144         ///
 145         LayoutBox * p;
 146         ///
 147         GuiView & owner_;
 148         ///
 149         DocumentClass const * text_class_;
 150         ///
 151         Inset const * inset_;
 152
 153         /// the layout model: 1st column translated, 2nd column raw layout name
 154         QStandardItemModel * model_;
 155         /// the proxy model filtering \c model_
 156         GuiLayoutFilterModel * filterModel_;
 157         /// the (model-) index of the last successful selection
 158         int lastSel_;
 159         /// the character filter
 160         QString filter_;
 161         ///
 162         LayoutItemDelegate * layoutItemDelegate_;
 163         ///
 164         unsigned visibleCategories_;
 165         ///
 166         bool inShowPopup_;
 167 };
 168
 169
 170 static QString category(QAbstractItemModel const & model, int row)
 171 {
 172         return model.data(model.index(row, 2), Qt::DisplayRole).toString();
 173 }
 174
 175
 176 static int headerHeight(QStyleOptionViewItem const & opt)
 177 {
 178         return opt.fontMetrics.height() * 8 / 10;
 179 }
 180
 181
 182 void LayoutItemDelegate::paint(QPainter * painter, QStyleOptionViewItem const & option,
 183                                                            QModelIndex const & index) const
 184 {
 185         QStyleOptionViewItem opt = option;
 186
 187         // default background
 188         painter->fillRect(opt.rect, opt.palette.color(QPalette::Base));
 189
 190         // category header?
 191         if (lyxrc.group_layouts) {
 192                 QSortFilterProxyModel const * model =
 193                         static_cast<QSortFilterProxyModel const *>(index.model());
 194
 195                 QString stdCat = category(*model->sourceModel(), 0);
 196                 QString cat = category(*index.model(), index.row());
 197
 198                 // not the standard layout and not the same as in the previous line?
 199                 if (stdCat != cat
 200                         && (index.row() == 0 || cat != category(*index.model(), index.row() - 1))) {
 201                         painter->save();
 202
 203                         // draw unselected background
 204                         QStyle::State state = opt.state;
 205                         opt.state = opt.state & ~QStyle::State_Selected;
 206                         drawBackground(painter, opt, index);
 207                         opt.state = state;
 208
 209                         // draw category header
 210                         drawCategoryHeader(painter, opt,
 211                                 category(*index.model(), index.row()));
 212
 213                         // move rect down below header
 214                         opt.rect.setTop(opt.rect.top() + headerHeight(opt));
 215
 216                         painter->restore();
 217                 }
 218         }
 219
 220         QItemDelegate::paint(painter, opt, index);
 221 }
 222
 223
 224 void LayoutItemDelegate::drawDisplay(QPainter * painter, QStyleOptionViewItem const & opt,
 225                                                                          const QRect & /*rect*/, const QString & text ) const
 226 {
 227         QString utext = underlineFilter(text);
 228
 229         // Draw the rich text.
 230         painter->save();
 231         QColor col = opt.palette.text().color();
 232         if (opt.state & QStyle::State_Selected)
 233                 col = opt.palette.highlightedText().color();
 234         QAbstractTextDocumentLayout::PaintContext context;
 235         context.palette.setColor(QPalette::Text, col);
 236
 237         QTextDocument doc;
 238         doc.setDefaultFont(opt.font);
 239         doc.setHtml(utext);
 240
 241         QTextFrameFormat fmt = doc.rootFrame()->frameFormat();
 242         fmt.setMargin(0);
 243         doc.rootFrame()->setFrameFormat(fmt);
 244
 245         painter->translate(opt.rect.x() + 5,
 246                 opt.rect.y() + (opt.rect.height() - opt.fontMetrics.height()) / 2);
 247         doc.documentLayout()->draw(painter, context);
 248         painter->restore();
 249 }
 250
 251
 252 QSize LayoutItemDelegate::sizeHint(QStyleOptionViewItem const & opt,
 253                                                                    QModelIndex const & index) const
 254 {
 255         QSortFilterProxyModel const * model =
 256                 static_cast<QSortFilterProxyModel const *>(index.model());
 257         QSize size = QItemDelegate::sizeHint(opt, index);
 258
 259         /// QComboBox uses the first row height to estimate the
 260         /// complete popup height during QComboBox::showPopup().
 261         /// To avoid scrolling we have to sneak in space for the headers.
 262         /// So we tweak this value accordingly. It's not nice, but the
 263         /// only possible way it seems.
 264         if (lyxrc.group_layouts && index.row() == 0 && layout_->d->inShowPopup_) {
 265                 int itemHeight = size.height();
 266
 267                 // we have to show \c cats many headers:
 268                 unsigned cats = layout_->d->visibleCategories_;
 269
 270                 // and we have \c n items to distribute the needed space over
 271                 unsigned n = layout_->model()->rowCount();
 272
 273                 // so the needed average height (rounded upwards) is:
 274                 size.setHeight((headerHeight(opt) * cats + itemHeight * n + n - 1) / n);
 275                 return size;
 276         }
 277
 278         // Add space for the category headers here?
 279         // Not for the standard layout though.
 280         QString stdCat = category(*model->sourceModel(), 0);
 281         QString cat = category(*index.model(), index.row());
 282         if (lyxrc.group_layouts && stdCat != cat
 283                 && (index.row() == 0 || cat != category(*index.model(), index.row() - 1))) {
 284                 size.setHeight(size.height() + headerHeight(opt));
 285         }
 286
 287         return size;
 288 }
 289
 290
 291 void LayoutItemDelegate::drawCategoryHeader(QPainter * painter, QStyleOptionViewItem const & opt,
 292                                                                                         QString const & category) const
 293 {
 294         // slightly blended color
 295         QColor lcol = opt.palette.text().color();
 296         lcol.setAlpha(127);
 297         painter->setPen(lcol);
 298
 299         // set 80% scaled, bold font
 300         QFont font = opt.font;
 301         font.setBold(true);
 302         font.setWeight(QFont::Black);
 303         font.setPointSize(opt.font.pointSize() * 8 / 10);
 304         painter->setFont(font);
 305
 306         // draw the centered text
 307         QFontMetrics fm(font);
 308         int w = fm.width(category);
 309         int x = opt.rect.x() + (opt.rect.width() - w) / 2;
 310         int y = opt.rect.y() + fm.ascent();
 311         int left = x;
 312         int right = x + w;
 313         painter->drawText(x, y, category);
 314
 315         // the vertical position of the line: middle of lower case chars
 316         int ymid = y - 1 - fm.xHeight() / 2; // -1 for the baseline
 317
 318         // draw the horizontal line
 319         if (!category.isEmpty()) {
 320                 painter->drawLine(opt.rect.x(), ymid, left - 1, ymid);
 321                 painter->drawLine(right + 1, ymid, opt.rect.right(), ymid);
 322         } else
 323                 painter->drawLine(opt.rect.x(), ymid, opt.rect.right(), ymid);
 324 }
 325
 326
 327 QString LayoutItemDelegate::underlineFilter(QString const & s) const
 328 {
 329         QString const & f = layout_->filter();
 330         if (f.isEmpty())
 331                 return s;
 332
 333         // step through data item and put "(x)" for every matching character
 334         QString r;
 335         int lastp = -1;
 336         layout_->filter();
 337         for (int i = 0; i < f.length(); ++i) {
 338                 int p = s.indexOf(f[i], lastp + 1, Qt::CaseInsensitive);
 339                 LASSERT(p != -1, /**/);
 340                 if (lastp == p - 1 && lastp != -1) {
 341                         // remove ")" and append "x)"
 342                         r = r.left(r.length() - 4) + s[p] + "</u>";
 343                 } else {
 344                         // append "(x)"
 345                         r += s.mid(lastp + 1, p - lastp - 1);
 346                         r += QString("<u>") + s[p] + "</u>";
 347                 }
 348                 lastp = p;
 349         }
 350         r += s.mid(lastp + 1);
 351         return r;
 352 }
 353
 354
 355 static QString charFilterRegExp(QString const & filter)
 356 {
 357         QString re;
 358         for (int i = 0; i < filter.length(); ++i) {
 359                 QChar c = filter[i];
 360                 if (c.isLower())
 361                         re += ".*[" + QRegExp::escape(c) + QRegExp::escape(c.toUpper()) + "]";
 362                 else
 363                         re += ".*" + QRegExp::escape(c);
 364         }
 365         return re;
 366 }
 367
 368
 369 void LayoutBox::Private::setFilter(QString const & s)
 370 {
 371         bool enabled = p->view()->updatesEnabled();
 372         p->view()->setUpdatesEnabled(false);
 373
 374         // remember old selection
 375         int sel = p->currentIndex();
 376         if (sel != -1)
 377                 lastSel_ = filterModel_->mapToSource(filterModel_->index(sel, 0)).row();
 378
 379         filter_ = s;
 380         filterModel_->setFilterRegExp(charFilterRegExp(filter_));
 381         countCategories();
 382
 383         // restore old selection
 384         if (lastSel_ != -1) {
 385                 QModelIndex i = filterModel_->mapFromSource(model_->index(lastSel_, 0));
 386                 if (i.isValid())
 387                         p->setCurrentIndex(i.row());
 388         }
 389
 390         // Workaround to resize to content size
 391         // FIXME: There must be a better way. The QComboBox::AdjustToContents)
 392         //        does not help.
 393         if (p->view()->isVisible()) {
 394                 // call QComboBox::showPopup. But set the inShowPopup_ flag to switch on
 395                 // the hack in the item delegate to make space for the headers.
 396                 // We do not call our implementation of showPopup because that
 397                 // would reset the filter again. This is only needed if the user clicks
 398                 // on the QComboBox.
 399                 LASSERT(!inShowPopup_, /**/);
 400                 inShowPopup_ = true;
 401                 p->showPopup();
 402                 inShowPopup_ = false;
 403
 404                 // The item delegate hack is off again. So trigger a relayout of the popup.
 405                 filterModel_->triggerLayoutChange();
 406
 407                 if (!s.isEmpty())
 408                         owner_.message(bformat(_("Filtering layouts with \"%1$s\". "
 409                                                  "Press ESC to remove filter."),
 410                                                qstring_to_ucs4(s)));
 411                 else
 412                         owner_.message(_("Enter characters to filter the layout list."));
 413         }
 414
 415         p->view()->setUpdatesEnabled(enabled);
 416 }
 417
 418
 419 LayoutBox::LayoutBox(QToolBar * bar, GuiView & owner)
 420         : d(new Private(this, owner))
 421 {
 422         setSizeAdjustPolicy(QComboBox::AdjustToContents);
 423         setFocusPolicy(Qt::ClickFocus);
 424         setMinimumWidth(sizeHint().width());
 425         setMaxVisibleItems(100);
 426
 427         setModel(d->filterModel_);
 428
 429         // for the filtering we have to intercept characters
 430         view()->installEventFilter(this);
 431         view()->setItemDelegateForColumn(0, d->layoutItemDelegate_);
 432
 433         QObject::connect(this, SIGNAL(activated(int)),
 434                 this, SLOT(selected(int)));
 435         QObject::connect(bar, SIGNAL(iconSizeChanged(QSize)),
 436                 this, SLOT(setIconSize(QSize)));
 437
 438         d->owner_.setLayoutDialog(this);
 439         updateContents(true);
 440 }
 441
 442
 443 void LayoutBox::Private::countCategories()
 444 {
 445         int n = filterModel_->rowCount();
 446         visibleCategories_ = 0;
 447         if (n == 0 || !lyxrc.group_layouts)
 448                 return;
 449
 450         // skip the "Standard" category
 451         QString prevCat = model_->index(0, 2).data().toString();
 452
 453         // count categories
 454         for (int i = 0; i < n; ++i) {
 455                 QString cat = filterModel_->index(i, 2).data().toString();
 456                 if (cat != prevCat)
 457                         ++visibleCategories_;
 458                 prevCat = cat;
 459         }
 460 }
 461
 462
 463 void LayoutBox::showPopup()
 464 {
 465         d->owner_.message(_("Enter characters to filter the layout list."));
 466
 467         bool enabled = view()->updatesEnabled();
 468         view()->setUpdatesEnabled(false);
 469
 470         d->resetFilter();
 471
 472         // call QComboBox::showPopup. But set the inShowPopup_ flag to switch on
 473         // the hack in the item delegate to make space for the headers.
 474         LASSERT(!d->inShowPopup_, /**/);
 475         d->inShowPopup_ = true;
 476         QComboBox::showPopup();
 477         d->inShowPopup_ = false;
 478
 479         // The item delegate hack is off again. So trigger a relayout of the popup.
 480         d->filterModel_->triggerLayoutChange();
 481
 482         view()->setUpdatesEnabled(enabled);
 483 }
 484
 485
 486 bool LayoutBox::eventFilter(QObject * o, QEvent * e)
 487 {
 488         if (e->type() != QEvent::KeyPress)
 489                 return QComboBox::eventFilter(o, e);
 490
 491         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 492         bool modified = (ke->modifiers() == Qt::ControlModifier)
 493                 || (ke->modifiers() == Qt::AltModifier)
 494                 || (ke->modifiers() == Qt::MetaModifier);
 495
 496         switch (ke->key()) {
 497         case Qt::Key_Escape:
 498                 if (!modified && !d->filter_.isEmpty()) {
 499                         d->resetFilter();
 500                         return true;
 501                 }
 502                 break;
 503         case Qt::Key_Backspace:
 504                 if (!modified) {
 505                         // cut off one character
 506                         d->setFilter(d->filter_.left(d->filter_.length() - 1));
 507                 }
 508                 break;
 509         default:
 510                 if (modified || ke->text().isEmpty())
 511                         break;
 512                 // find chars for the filter string
 513                 QString s;
 514                 for (int i = 0; i < ke->text().length(); ++i) {
 515                         QChar c = ke->text()[i];
 516                         if (c.isLetterOrNumber()
 517                             || c.isSymbol()
 518                             || c.isPunct()
 519                             || c.category() == QChar::Separator_Space) {
 520                                 s += c;
 521                         }
 522                 }
 523                 if (!s.isEmpty()) {
 524                         // append new chars to the filter string
 525                         d->setFilter(d->filter_ + s);
 526                         return true;
 527                 }
 528                 break;
 529         }
 530
 531         return QComboBox::eventFilter(o, e);
 532 }
 533
 534
 535 void LayoutBox::setIconSize(QSize size)
 536 {
 537 #ifdef Q_WS_MACX
 538         bool small = size.height() < 20;
 539         setAttribute(Qt::WA_MacSmallSize, small);
 540         setAttribute(Qt::WA_MacNormalSize, !small);
 541 #else
 542         (void)size; // suppress warning
 543 #endif
 544 }
 545
 546
 547 void LayoutBox::set(docstring const & layout)
 548 {
 549         d->resetFilter();
 550
 551         if (!d->text_class_)
 552                 return;
 553
 554         Layout const & lay = (*d->text_class_)[layout];
 555         QString newLayout = toqstr(lay.name());
 556
 557         // If the layout is obsolete, use the new one instead.
 558         docstring const & obs = lay.obsoleted_by();
 559         if (!obs.empty())
 560                 newLayout = toqstr(obs);
 561
 562         int const curItem = currentIndex();
 563         QModelIndex const mindex =
 564                 d->filterModel_->mapToSource(d->filterModel_->index(curItem, 1));
 565         QString const & currentLayout = d->model_->itemFromIndex(mindex)->text();
 566         if (newLayout == currentLayout) {
 567                 LYXERR(Debug::GUI, "Already had " << newLayout << " selected.");
 568                 return;
 569         }
 570
 571         QList<QStandardItem *> r = d->model_->findItems(newLayout, Qt::MatchExactly, 1);
 572         if (r.empty()) {
 573                 LYXERR0("Trying to select non existent layout type " << newLayout);
 574                 return;
 575         }
 576
 577         setCurrentIndex(d->filterModel_->mapFromSource(r.first()->index()).row());
 578 }
 579
 580
 581 void LayoutBox::addItemSort(docstring const & item, docstring const & category,
 582         bool sorted, bool sortedByCat, bool unknown)
 583 {
 584         QString qitem = toqstr(item);
 585         // FIXME This is wrong for RTL, I'd suppose.
 586         QString titem = toqstr(translateIfPossible(item) +
 587                                (unknown ? _(" (unknown)") : from_ascii("")));
 588         QString qcat = toqstr(translateIfPossible(category));
 589
 590         QList<QStandardItem *> row;
 591         row.append(new QStandardItem(titem));
 592         row.append(new QStandardItem(qitem));
 593         row.append(new QStandardItem(qcat));
 594
 595         // the first entry is easy
 596         int const end = d->model_->rowCount();
 597         if (end == 0) {
 598                 d->model_->appendRow(row);
 599                 return;
 600         }
 601
 602         // find category
 603         int i = 0;
 604         if (sortedByCat) {
 605                 while (i < end && d->model_->item(i, 2)->text() != qcat)
 606                         ++i;
 607         }
 608
 609         // skip the Standard layout
 610         if (i == 0)
 611                 ++i;
 612
 613         // the simple unsorted case
 614         if (!sorted) {
 615                 if (sortedByCat) {
 616                         // jump to the end of the category group
 617                         while (i < end && d->model_->item(i, 2)->text() == qcat)
 618                                 ++i;
 619                         d->model_->insertRow(i, row);
 620                 } else
 621                         d->model_->appendRow(row);
 622                 return;
 623         }
 624
 625         // find row to insert the item, after the separator if it exists
 626         if (i < end) {
 627                 // find alphabetic position
 628                 while (i != end
 629                        && d->model_->item(i, 0)->text().localeAwareCompare(titem) < 0
 630                        && (!sortedByCat || d->model_->item(i, 2)->text() == qcat))
 631                         ++i;
 632         }
 633
 634         d->model_->insertRow(i, row);
 635 }
 636
 637
 638 void LayoutBox::updateContents(bool reset)
 639 {
 640         d->resetFilter();
 641
 642         Buffer const * buffer = d->owner_.buffer();
 643         if (!buffer) {
 644                 d->model_->clear();
 645                 setEnabled(false);
 646                 d->text_class_ = 0;
 647                 d->inset_ = 0;
 648                 return;
 649         }
 650
 651         // we'll only update the layout list if the text class has changed
 652         // or we've moved from one inset to another
 653         DocumentClass const * text_class = &buffer->params().documentClass();
 654         Inset const * inset =
 655                 &(d->owner_.view()->cursor().innerText()->inset());
 656         if (!reset && d->text_class_ == text_class && d->inset_ == inset) {
 657                 set(d->owner_.view()->cursor().innerParagraph().layout().name());
 658                 return;
 659         }
 660
 661         d->inset_ = inset;
 662         d->text_class_ = text_class;
 663
 664         d->model_->clear();
 665         DocumentClass::const_iterator lit = d->text_class_->begin();
 666         DocumentClass::const_iterator len = d->text_class_->end();
 667
 668         for (; lit != len; ++lit) {
 669                 docstring const & name = lit->name();
 670                 bool const useEmpty = d->inset_->forcePlainLayout() || d->inset_->usePlainLayout();
 671                 // if this inset requires the empty layout, we skip the default
 672                 // layout
 673                 if (name == d->text_class_->defaultLayoutName() && d->inset_ && useEmpty)
 674                         continue;
 675                 // if it doesn't require the empty layout, we skip it
 676                 if (name == d->text_class_->plainLayoutName() && d->inset_ && !useEmpty)
 677                         continue;
 678                 // obsoleted layouts are skipped as well
 679                 if (!lit->obsoleted_by().empty())
 680                         continue;
 681                 addItemSort(name, lit->category(), lyxrc.sort_layouts,
 682                                 lyxrc.group_layouts, lit->isUnknown());
 683         }
 684
 685         set(d->owner_.view()->cursor().innerParagraph().layout().name());
 686         d->countCategories();
 687
 688         // needed to recalculate size hint
 689         hide();
 690         setMinimumWidth(sizeHint().width());
 691         setEnabled(!buffer->isReadonly() &&
 692                 lyx::getStatus(FuncRequest(LFUN_LAYOUT)).enabled());
 693         show();
 694 }
 695
 696
 697 void LayoutBox::selected(int index)
 698 {
 699         // get selection
 700         QModelIndex mindex = d->filterModel_->mapToSource(
 701                 d->filterModel_->index(index, 1));
 702         docstring layoutName = qstring_to_ucs4(
 703                 d->model_->itemFromIndex(mindex)->text());
 704         d->owner_.setFocus();
 705
 706         if (!d->text_class_) {
 707                 updateContents(false);
 708                 d->resetFilter();
 709                 return;
 710         }
 711
 712         // find corresponding text class
 713         if (d->text_class_->hasLayout(layoutName)) {
 714                 FuncRequest const func(LFUN_LAYOUT, layoutName, FuncRequest::TOOLBAR);
 715                 theLyXFunc().setLyXView(&d->owner_);
 716                 lyx::dispatch(func);
 717                 updateContents(false);
 718                 d->resetFilter();
 719                 return;
 720         }
 721         LYXERR0("ERROR (layoutSelected): layout " << layoutName << " not found!");
 722 }
 723
 724
 725 QString const & LayoutBox::filter() const
 726 {
 727         return d->filter_;
 728 }
 729
 730 } // namespace frontend
 731 } // namespace lyx
 732
 733 #include "moc_LayoutBox.cpp"