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