src/frontends/qt4/GuiToolbar.cpp

   1 /**
   2  * \file qt4/GuiToolbar.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 "GuiToolbar.h"
  19
  20 #include "Action.h"
  21 #include "GuiApplication.h"
  22 #include "GuiCommandBuffer.h"
  23 #include "GuiView.h"
  24 #include "IconPalette.h"
  25 #include "InsertTableWidget.h"
  26 #include "qt_helpers.h"
  27 #include "Toolbars.h"
  28
  29 #include "Buffer.h"
  30 #include "BufferParams.h"
  31 #include "BufferView.h"
  32 #include "Cursor.h"
  33 #include "FuncRequest.h"
  34 #include "FuncStatus.h"
  35 #include "KeyMap.h"
  36 #include "Layout.h"
  37 #include "LyXFunc.h"
  38 #include "LyXRC.h"
  39 #include "Paragraph.h"
  40 #include "TextClass.h"
  41
  42 #include "support/debug.h"
  43 #include "support/filetools.h"
  44 #include "support/gettext.h"
  45 #include "support/lstrings.h"
  46
  47 #include <QAbstractItemDelegate>
  48 #include <QAbstractTextDocumentLayout>
  49 #include <QApplication>
  50 #include <QComboBox>
  51 #include <QFontMetrics>
  52 #include <QHeaderView>
  53 #include <QItemDelegate>
  54 #include <QKeyEvent>
  55 #include <QList>
  56 #include <QListView>
  57 #include <QPainter>
  58 #include <QPixmap>
  59 #include <QSettings>
  60 #include <QSortFilterProxyModel>
  61 #include <QStandardItem>
  62 #include <QStandardItemModel>
  63 #include <QString>
  64 #include <QTextDocument>
  65 #include <QTextFrame>
  66 #include <QToolBar>
  67 #include <QToolButton>
  68 #include <QVariant>
  69
  70 #include "support/lassert.h"
  71
  72 using namespace std;
  73 using namespace lyx::support;
  74
  75 namespace lyx {
  76 namespace frontend {
  77
  78 /////////////////////////////////////////////////////////////////////
  79 //
  80 // GuiLayoutBox
  81 //
  82 /////////////////////////////////////////////////////////////////////
  83
  84 class LayoutItemDelegate : public QItemDelegate {
  85 public:
  86         ///
  87         explicit LayoutItemDelegate(QObject * parent = 0)
  88                 : QItemDelegate(parent)
  89         {}
  90
  91         ///
  92         void paint(QPainter * painter, QStyleOptionViewItem const & option,
  93                 QModelIndex const & index) const
  94         {
  95                 QStyleOptionViewItem opt = option;
  96
  97                 // default background
  98                 painter->fillRect(opt.rect, opt.palette.color(QPalette::Base));
  99
 100                 // category header?
 101                 if (lyxrc.group_layouts) {
 102                         QSortFilterProxyModel const * model
 103                         = static_cast<QSortFilterProxyModel const *>(index.model());
 104
 105                         QString stdCat = category(*model->sourceModel(), 0);
 106                         QString cat = category(*index.model(), index.row());
 107
 108                         // not the standard layout and not the same as in the previous line?
 109                         if (stdCat != cat
 110                             && (index.row() == 0 || cat != category(*index.model(), index.row() - 1))) {
 111                                 painter->save();
 112
 113                                 // draw unselected background
 114                                 QStyle::State state = opt.state;
 115                                 opt.state = opt.state & ~QStyle::State_Selected;
 116                                 drawBackground(painter, opt, index);
 117                                 opt.state = state;
 118
 119                                 // draw category header
 120                                 drawCategoryHeader(painter, opt,
 121                                         category(*index.model(), index.row()));
 122
 123                                 // move rect down below header
 124                                 opt.rect.setTop(opt.rect.top() + headerHeight(opt));
 125
 126                                 painter->restore();
 127                         }
 128                 }
 129
 130                 QItemDelegate::paint(painter, opt, index);
 131         }
 132
 133         ///
 134         void drawDisplay(QPainter * painter, QStyleOptionViewItem const & opt,
 135                          const QRect & /*rect*/, const QString & text ) const
 136         {
 137                 QString utext = underlineFilter(text);
 138
 139                 // Draw the rich text.
 140                 painter->save();
 141                 QColor col = opt.palette.text().color();
 142                 if (opt.state & QStyle::State_Selected)
 143                         col = opt.palette.highlightedText().color();
 144                 QAbstractTextDocumentLayout::PaintContext context;
 145                 context.palette.setColor(QPalette::Text, col);
 146
 147                 QTextDocument doc;
 148                 doc.setDefaultFont(opt.font);
 149                 doc.setHtml(utext);
 150
 151                 QTextFrameFormat fmt = doc.rootFrame()->frameFormat();
 152                 fmt.setMargin(0);
 153                 doc.rootFrame()->setFrameFormat(fmt);
 154
 155                 painter->translate(opt.rect.x() + 5,
 156                         opt.rect.y() + (opt.rect.height() - opt.fontMetrics.height()) / 2);
 157                 doc.documentLayout()->draw(painter, context);
 158                 painter->restore();
 159         }
 160
 161         ///
 162         QSize sizeHint(QStyleOptionViewItem const & opt,
 163                 QModelIndex const & index) const
 164         {
 165                 GuiLayoutBox * combo = static_cast<GuiLayoutBox *>(parent());
 166                 QSortFilterProxyModel const * model
 167                 = static_cast<QSortFilterProxyModel const *>(index.model());
 168                 QSize size = QItemDelegate::sizeHint(opt, index);
 169
 170                 /// QComboBox uses the first row height to estimate the
 171                 /// complete popup height during QComboBox::showPopup().
 172                 /// To avoid scrolling we have to sneak in space for the headers.
 173                 /// So we tweak this value accordingly. It's not nice, but the
 174                 /// only possible way it seems.
 175                 if (lyxrc.group_layouts && index.row() == 0 && combo->inShowPopup_) {
 176                         int itemHeight = size.height();
 177
 178                         // we have to show \c cats many headers:
 179                         unsigned cats = combo->visibleCategories_;
 180
 181                         // and we have \c n items to distribute the needed space over
 182                         unsigned n = combo->model()->rowCount();
 183
 184                         // so the needed average height (rounded upwards) is:
 185                         size.setHeight((headerHeight(opt) * cats + itemHeight * n + n - 1) / n);
 186                         return size;
 187                 }
 188
 189                 // Add space for the category headers here?
 190                 // Not for the standard layout though.
 191                 QString stdCat = category(*model->sourceModel(), 0);
 192                 QString cat = category(*index.model(), index.row());
 193                 if (lyxrc.group_layouts && stdCat != cat
 194                     && (index.row() == 0 || cat != category(*index.model(), index.row() - 1))) {
 195                         size.setHeight(size.height() + headerHeight(opt));
 196                 }
 197
 198                 return size;
 199         }
 200
 201 private:
 202         ///
 203         QString category(QAbstractItemModel const & model, int row) const
 204         {
 205                 return model.data(model.index(row, 2), Qt::DisplayRole).toString();
 206         }
 207
 208         ///
 209         int headerHeight(QStyleOptionViewItem const & opt) const
 210         {
 211                 return opt.fontMetrics.height() * 8 / 10;
 212         }
 213         ///
 214         void drawCategoryHeader(QPainter * painter, QStyleOptionViewItem const & opt,
 215                 QString const & category) const
 216         {
 217                 // slightly blended color
 218                 QColor lcol = opt.palette.text().color();
 219                 lcol.setAlpha(127);
 220                 painter->setPen(lcol);
 221
 222                 // set 80% scaled, bold font
 223                 QFont font = opt.font;
 224                 font.setBold(true);
 225                 font.setWeight(QFont::Black);
 226                 font.setPointSize(opt.font.pointSize() * 8 / 10);
 227                 painter->setFont(font);
 228
 229                 // draw the centered text
 230                 QFontMetrics fm(font);
 231                 int w = fm.width(category);
 232                 int x = opt.rect.x() + (opt.rect.width() - w) / 2;
 233                 int y = opt.rect.y() + fm.ascent();
 234                 int left = x;
 235                 int right = x + w;
 236                 painter->drawText(x, y, category);
 237
 238                 // the vertical position of the line: middle of lower case chars
 239                 int ymid = y - 1 - fm.xHeight() / 2; // -1 for the baseline
 240
 241                 // draw the horizontal line
 242                 if (!category.isEmpty()) {
 243                         painter->drawLine(opt.rect.x(), ymid, left - 1, ymid);
 244                         painter->drawLine(right + 1, ymid, opt.rect.right(), ymid);
 245                 } else
 246                         painter->drawLine(opt.rect.x(), ymid, opt.rect.right(), ymid);
 247         }
 248
 249
 250         ///
 251         QString underlineFilter(QString const & s) const
 252         {
 253                 // get filter
 254                 GuiLayoutBox * p = static_cast<GuiLayoutBox *>(parent());
 255                 QString const & f = p->filter();
 256                 if (f.isEmpty())
 257                         return s;
 258
 259                 // step through data item and put "(x)" for every matching character
 260                 QString r;
 261                 int lastp = -1;
 262                 p->filter();
 263                 for (int i = 0; i < f.length(); ++i) {
 264                         int p = s.indexOf(f[i], lastp + 1, Qt::CaseInsensitive);
 265                         LASSERT(p != -1, /**/);
 266                         if (lastp == p - 1 && lastp != -1) {
 267                                 // remove ")" and append "x)"
 268                                 r = r.left(r.length() - 4) + s[p] + "</u>";
 269                         } else {
 270                                 // append "(x)"
 271                                 r += s.mid(lastp + 1, p - lastp - 1);
 272                                 r += QString("<u>") + s[p] + "</u>";
 273                         }
 274                         lastp = p;
 275                 }
 276                 r += s.mid(lastp + 1);
 277                 return r;
 278         }
 279 };
 280
 281
 282 class GuiLayoutFilterModel : public QSortFilterProxyModel {
 283 public:
 284         ///
 285         GuiLayoutFilterModel(QObject * parent = 0)
 286                 : QSortFilterProxyModel(parent)
 287         {}
 288
 289         ///
 290         void triggerLayoutChange()
 291         {
 292                 layoutAboutToBeChanged();
 293                 layoutChanged();
 294         }
 295 };
 296
 297
 298 GuiLayoutBox::GuiLayoutBox(GuiToolbar * bar, GuiView & owner)
 299         : owner_(owner), bar_(bar), lastSel_(-1),
 300           layoutItemDelegate_(new LayoutItemDelegate(this)),
 301           visibleCategories_(0), inShowPopup_(false)
 302 {
 303         setSizeAdjustPolicy(QComboBox::AdjustToContents);
 304         setFocusPolicy(Qt::ClickFocus);
 305         setMinimumWidth(sizeHint().width());
 306         setMaxVisibleItems(100);
 307
 308         // set the layout model with two columns
 309         // 1st: translated layout names
 310         // 2nd: raw layout names
 311         model_ = new QStandardItemModel(0, 2, this);
 312         filterModel_ = new GuiLayoutFilterModel(this);
 313         filterModel_->setSourceModel(model_);
 314         setModel(filterModel_);
 315
 316         // for the filtering we have to intercept characters
 317         view()->installEventFilter(this);
 318         view()->setItemDelegateForColumn(0, layoutItemDelegate_);
 319
 320         QObject::connect(this, SIGNAL(activated(int)),
 321                 this, SLOT(selected(int)));
 322         QObject::connect(bar_, SIGNAL(iconSizeChanged(QSize)),
 323                 this, SLOT(setIconSize(QSize)));
 324
 325         owner_.setLayoutDialog(this);
 326         updateContents(true);
 327 }
 328
 329
 330 void GuiLayoutBox::setFilter(QString const & s)
 331 {
 332         bool enabled = view()->updatesEnabled();
 333         view()->setUpdatesEnabled(false);
 334
 335         // remember old selection
 336         int sel = currentIndex();
 337         if (sel != -1)
 338                 lastSel_ = filterModel_->mapToSource(filterModel_->index(sel, 0)).row();
 339
 340         filter_ = s;
 341         filterModel_->setFilterRegExp(charFilterRegExp(filter_));
 342         countCategories();
 343
 344         // restore old selection
 345         if (lastSel_ != -1) {
 346                 QModelIndex i = filterModel_->mapFromSource(model_->index(lastSel_, 0));
 347                 if (i.isValid())
 348                         setCurrentIndex(i.row());
 349         }
 350
 351         // Workaround to resize to content size
 352         // FIXME: There must be a better way. The QComboBox::AdjustToContents)
 353         //        does not help.
 354         if (view()->isVisible()) {
 355                 // call QComboBox::showPopup. But set the inShowPopup_ flag to switch on
 356                 // the hack in the item delegate to make space for the headers.
 357                 // We do not call our implementation of showPopup because that
 358                 // would reset the filter again. This is only needed if the user clicks
 359                 // on the QComboBox.
 360                 LASSERT(!inShowPopup_, /**/);
 361                 inShowPopup_ = true;
 362                 QComboBox::showPopup();
 363                 inShowPopup_ = false;
 364
 365                 // The item delegate hack is off again. So trigger a relayout of the popup.
 366                 filterModel_->triggerLayoutChange();
 367
 368                 if (!s.isEmpty())
 369                         owner_.message(bformat(_("Filtering layouts with \"%1$s\". "
 370                                                  "Press ESC to remove filter."),
 371                                                qstring_to_ucs4(s)));
 372                 else
 373                         owner_.message(_("Enter characters to filter the layout list."));
 374         }
 375
 376         view()->setUpdatesEnabled(enabled);
 377 }
 378
 379
 380 void GuiLayoutBox::countCategories()
 381 {
 382         int n = filterModel_->rowCount();
 383         visibleCategories_ = 0;
 384         if (n == 0 || !lyxrc.group_layouts)
 385                 return;
 386
 387         // skip the "Standard" category
 388         QString prevCat = model_->index(0, 2).data().toString();
 389
 390         // count categories
 391         for (int i = 0; i < n; ++i) {
 392                 QString cat = filterModel_->index(i, 2).data().toString();
 393                 if (cat != prevCat)
 394                         ++visibleCategories_;
 395                 prevCat = cat;
 396         }
 397 }
 398
 399
 400 QString GuiLayoutBox::charFilterRegExp(QString const & filter)
 401 {
 402         QString re;
 403         for (int i = 0; i < filter.length(); ++i) {
 404                 QChar c = filter[i];
 405                 if (c.isLower())
 406                         re += ".*[" + QRegExp::escape(c) + QRegExp::escape(c.toUpper()) + "]";
 407                 else
 408                         re += ".*" + QRegExp::escape(c);
 409         }
 410         return re;
 411 }
 412
 413
 414 void GuiLayoutBox::resetFilter()
 415 {
 416         setFilter(QString());
 417 }
 418
 419
 420 void GuiLayoutBox::showPopup()
 421 {
 422         owner_.message(_("Enter characters to filter the layout list."));
 423
 424         bool enabled = view()->updatesEnabled();
 425         view()->setUpdatesEnabled(false);
 426
 427         resetFilter();
 428
 429         // call QComboBox::showPopup. But set the inShowPopup_ flag to switch on
 430         // the hack in the item delegate to make space for the headers.
 431         LASSERT(!inShowPopup_, /**/);
 432         inShowPopup_ = true;
 433         QComboBox::showPopup();
 434         inShowPopup_ = false;
 435
 436         // The item delegate hack is off again. So trigger a relayout of the popup.
 437         filterModel_->triggerLayoutChange();
 438
 439         view()->setUpdatesEnabled(enabled);
 440 }
 441
 442
 443 bool GuiLayoutBox::eventFilter(QObject * o, QEvent * e)
 444 {
 445         if (e->type() != QEvent::KeyPress)
 446                 return QComboBox::eventFilter(o, e);
 447
 448         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 449         bool modified = (ke->modifiers() == Qt::ControlModifier)
 450                 || (ke->modifiers() == Qt::AltModifier)
 451                 || (ke->modifiers() == Qt::MetaModifier);
 452
 453         switch (ke->key()) {
 454         case Qt::Key_Escape:
 455                 if (!modified && !filter_.isEmpty()) {
 456                         resetFilter();
 457                         return true;
 458                 }
 459                 break;
 460         case Qt::Key_Backspace:
 461                 if (!modified) {
 462                         // cut off one character
 463                         setFilter(filter_.left(filter_.length() - 1));
 464                 }
 465                 break;
 466         default:
 467                 if (modified || ke->text().isEmpty())
 468                         break;
 469                 // find chars for the filter string
 470                 QString s;
 471                 for (int i = 0; i < ke->text().length(); ++i) {
 472                         QChar c = ke->text()[i];
 473                         if (c.isLetterOrNumber()
 474                             || c.isSymbol()
 475                             || c.isPunct()
 476                             || c.category() == QChar::Separator_Space) {
 477                                 s += c;
 478                         }
 479                 }
 480                 if (!s.isEmpty()) {
 481                         // append new chars to the filter string
 482                         setFilter(filter_ + s);
 483                         return true;
 484                 }
 485                 break;
 486         }
 487
 488         return QComboBox::eventFilter(o, e);
 489 }
 490
 491
 492 void GuiLayoutBox::setIconSize(QSize size)
 493 {
 494 #ifdef Q_WS_MACX
 495         bool small = size.height() < 20;
 496         setAttribute(Qt::WA_MacSmallSize, small);
 497         setAttribute(Qt::WA_MacNormalSize, !small);
 498 #else
 499         (void)size; // suppress warning
 500 #endif
 501 }
 502
 503
 504 void GuiLayoutBox::set(docstring const & layout)
 505 {
 506         resetFilter();
 507
 508         if (!text_class_)
 509                 return;
 510
 511         Layout const & lay = (*text_class_)[layout];
 512         QString newLayout = toqstr(lay.name());
 513
 514         // If the layout is obsolete, use the new one instead.
 515         docstring const & obs = lay.obsoleted_by();
 516         if (!obs.empty())
 517                 newLayout = toqstr(obs);
 518
 519         int const curItem = currentIndex();
 520         QModelIndex const mindex =
 521                 filterModel_->mapToSource(filterModel_->index(curItem, 1));
 522         QString const & currentLayout = model_->itemFromIndex(mindex)->text();
 523         if (newLayout == currentLayout) {
 524                 LYXERR(Debug::GUI, "Already had " << newLayout << " selected.");
 525                 return;
 526         }
 527
 528         QList<QStandardItem *> r = model_->findItems(newLayout, Qt::MatchExactly, 1);
 529         if (r.empty()) {
 530                 LYXERR0("Trying to select non existent layout type " << newLayout);
 531                 return;
 532         }
 533
 534         setCurrentIndex(filterModel_->mapFromSource(r.first()->index()).row());
 535 }
 536
 537
 538 void GuiLayoutBox::addItemSort(docstring const & item, docstring const & category,
 539         bool sorted, bool sortedByCat, bool unknown)
 540 {
 541         QString qitem = toqstr(item);
 542         // FIXME This is wrong for RTL, I'd suppose.
 543         QString titem = toqstr(translateIfPossible(item) +
 544                                (unknown ? _(" (unknown)") : from_ascii("")));
 545         QString qcat = toqstr(translateIfPossible(category));
 546
 547         QList<QStandardItem *> row;
 548         row.append(new QStandardItem(titem));
 549         row.append(new QStandardItem(qitem));
 550         row.append(new QStandardItem(qcat));
 551
 552         // the first entry is easy
 553         int const end = model_->rowCount();
 554         if (end == 0) {
 555                 model_->appendRow(row);
 556                 return;
 557         }
 558
 559         // find category
 560         int i = 0;
 561         if (sortedByCat) {
 562                 while (i < end && model_->item(i, 2)->text() != qcat)
 563                         ++i;
 564         }
 565
 566         // skip the Standard layout
 567         if (i == 0)
 568                 ++i;
 569
 570         // the simple unsorted case
 571         if (!sorted) {
 572                 if (sortedByCat) {
 573                         // jump to the end of the category group
 574                         while (i < end && model_->item(i, 2)->text() == qcat)
 575                                 ++i;
 576                         model_->insertRow(i, row);
 577                 } else
 578                         model_->appendRow(row);
 579                 return;
 580         }
 581
 582         // find row to insert the item, after the separator if it exists
 583         if (i < end) {
 584                 // find alphabetic position
 585                 while (i != end
 586                        && model_->item(i, 0)->text().localeAwareCompare(titem) < 0
 587                        && (!sortedByCat || model_->item(i, 2)->text() == qcat))
 588                         ++i;
 589         }
 590
 591         model_->insertRow(i, row);
 592 }
 593
 594
 595 void GuiLayoutBox::updateContents(bool reset)
 596 {
 597         resetFilter();
 598
 599         Buffer const * buffer = owner_.buffer();
 600         if (!buffer) {
 601                 model_->clear();
 602                 setEnabled(false);
 603                 text_class_ = 0;
 604                 inset_ = 0;
 605                 return;
 606         }
 607
 608         // we'll only update the layout list if the text class has changed
 609         // or we've moved from one inset to another
 610         DocumentClass const * text_class = &buffer->params().documentClass();
 611         Inset const * inset =
 612                 &(owner_.view()->cursor().innerParagraph().inInset());
 613         if (!reset && text_class_ == text_class && inset_ == inset) {
 614                 set(owner_.view()->cursor().innerParagraph().layout().name());
 615                 return;
 616         }
 617
 618         inset_ = inset;
 619         text_class_ = text_class;
 620
 621         model_->clear();
 622         DocumentClass::const_iterator lit = text_class_->begin();
 623         DocumentClass::const_iterator len = text_class_->end();
 624
 625         for (; lit != len; ++lit) {
 626                 docstring const & name = lit->name();
 627                 bool const useEmpty = inset_->forcePlainLayout() || inset_->usePlainLayout();
 628                 // if this inset requires the empty layout, we skip the default
 629                 // layout
 630                 if (name == text_class_->defaultLayoutName() && inset_ && useEmpty)
 631                         continue;
 632                 // if it doesn't require the empty layout, we skip it
 633                 if (name == text_class_->plainLayoutName() && inset_ && !useEmpty)
 634                         continue;
 635                 // obsoleted layouts are skipped as well
 636                 if (!lit->obsoleted_by().empty())
 637                         continue;
 638                 addItemSort(name, lit->category(), lyxrc.sort_layouts,
 639                                 lyxrc.group_layouts, lit->isUnknown());
 640         }
 641
 642         set(owner_.view()->cursor().innerParagraph().layout().name());
 643         countCategories();
 644
 645         // needed to recalculate size hint
 646         hide();
 647         setMinimumWidth(sizeHint().width());
 648         setEnabled(!buffer->isReadonly() &&
 649                 lyx::getStatus(FuncRequest(LFUN_LAYOUT)).enabled());
 650         show();
 651 }
 652
 653
 654 void GuiLayoutBox::selected(int index)
 655 {
 656         // get selection
 657         QModelIndex mindex = filterModel_->mapToSource(filterModel_->index(index, 1));
 658         docstring layoutName = qstring_to_ucs4(model_->itemFromIndex(mindex)->text());
 659         owner_.setFocus();
 660
 661         if (!text_class_) {
 662                 updateContents(false);
 663                 resetFilter();
 664                 return;
 665         }
 666
 667         // find corresponding text class
 668         if (text_class_->hasLayout(layoutName)) {
 669                 FuncRequest const func(LFUN_LAYOUT, layoutName, FuncRequest::TOOLBAR);
 670                 theLyXFunc().setLyXView(&owner_);
 671                 lyx::dispatch(func);
 672                 updateContents(false);
 673                 resetFilter();
 674                 return;
 675         }
 676         LYXERR0("ERROR (layoutSelected): layout " << layoutName << " not found!");
 677 }
 678
 679
 680
 681 /////////////////////////////////////////////////////////////////////
 682 //
 683 // GuiToolbar
 684 //
 685 /////////////////////////////////////////////////////////////////////
 686
 687
 688 GuiToolbar::GuiToolbar(ToolbarInfo const & tbinfo, GuiView & owner)
 689         : QToolBar(toqstr(tbinfo.gui_name), &owner), visibility_(0),
 690           allowauto_(false), owner_(owner), layout_(0), command_buffer_(0),
 691           tbinfo_(tbinfo), filled_(false)
 692 {
 693         setIconSize(owner.iconSize());
 694         connect(&owner, SIGNAL(iconSizeChanged(QSize)), this,
 695                 SLOT(setIconSize(QSize)));
 696
 697         // Toolbar dragging is allowed.
 698         setMovable(true);
 699         // This is used by QMainWindow::restoreState for proper main window state
 700         // restauration.
 701         setObjectName(toqstr(tbinfo.name));
 702         restoreSession();
 703 }
 704
 705
 706 void GuiToolbar::fill()
 707 {
 708         if (filled_)
 709                 return;
 710         ToolbarInfo::item_iterator it = tbinfo_.items.begin();
 711         ToolbarInfo::item_iterator end = tbinfo_.items.end();
 712         for (; it != end; ++it)
 713                 add(*it);
 714         filled_ = true;
 715 }
 716
 717
 718 void GuiToolbar::showEvent(QShowEvent * ev)
 719 {
 720         fill();
 721         ev->accept();
 722 }
 723
 724
 725 void GuiToolbar::setVisibility(int visibility)
 726 {
 727         visibility_ = visibility;
 728         allowauto_ = visibility_ >= Toolbars::MATH;
 729 }
 730
 731
 732 Action * GuiToolbar::addItem(ToolbarItem const & item)
 733 {
 734         QString text = toqstr(item.label_);
 735         // Get the keys bound to this action, but keep only the
 736         // first one later
 737         KeyMap::Bindings bindings = theTopLevelKeymap().findBindings(item.func_);
 738         if (bindings.size())
 739                 text += " [" + toqstr(bindings.begin()->print(KeySequence::ForGui)) + "]";
 740
 741         Action * act = new Action(&owner_, getIcon(item.func_, false),
 742                 text, item.func_, text, this);
 743         actions_.append(act);
 744         return act;
 745 }
 746
 747 namespace {
 748
 749 class PaletteButton : public QToolButton
 750 {
 751 private:
 752         GuiToolbar * bar_;
 753         ToolbarItem const & tbitem_;
 754         bool initialized_;
 755 public:
 756         PaletteButton(GuiToolbar * bar, ToolbarItem const & item)
 757                 : QToolButton(bar), bar_(bar), tbitem_(item), initialized_(false)
 758         {
 759                 QString const label = qt_(to_ascii(tbitem_.label_));
 760                 setToolTip(label);
 761                 setStatusTip(label);
 762                 setText(label);
 763                 connect(bar_, SIGNAL(iconSizeChanged(QSize)),
 764                         this, SLOT(setIconSize(QSize)));
 765                 setCheckable(true);
 766                 ToolbarInfo const * tbinfo = guiApp->toolbars().info(tbitem_.name_);
 767                 if (tbinfo)
 768                         // use the icon of first action for the toolbar button
 769                         setIcon(getIcon(tbinfo->items.begin()->func_, true));
 770         }
 771
 772         void mousePressEvent(QMouseEvent * e)
 773         {
 774                 if (initialized_) {
 775                         QToolButton::mousePressEvent(e);
 776                         return;
 777                 }
 778
 779                 initialized_ = true;
 780
 781                 ToolbarInfo const * tbinfo = guiApp->toolbars().info(tbitem_.name_);
 782                 if (!tbinfo) {
 783                         LYXERR0("Unknown toolbar " << tbitem_.name_);
 784                         return;
 785                 }
 786                 IconPalette * panel = new IconPalette(this);
 787                 QString const label = qt_(to_ascii(tbitem_.label_));
 788                 panel->setWindowTitle(label);
 789                 connect(this, SIGNAL(clicked(bool)), panel, SLOT(setVisible(bool)));
 790                 connect(panel, SIGNAL(visible(bool)), this, SLOT(setChecked(bool)));
 791                 ToolbarInfo::item_iterator it = tbinfo->items.begin();
 792                 ToolbarInfo::item_iterator const end = tbinfo->items.end();
 793                 for (; it != end; ++it)
 794                         if (!getStatus(it->func_).unknown())
 795                                 panel->addButton(bar_->addItem(*it));
 796
 797                 QToolButton::mousePressEvent(e);
 798         }
 799 };
 800
 801 }
 802
 803
 804 MenuButton::MenuButton(GuiToolbar * bar, ToolbarItem const & item, bool const sticky)
 805         : QToolButton(bar), bar_(bar), tbitem_(item), initialized_(false)
 806 {
 807         setPopupMode(QToolButton::InstantPopup);
 808         QString const label = qt_(to_ascii(tbitem_.label_));
 809         setToolTip(label);
 810         setStatusTip(label);
 811         setText(label);
 812         setIcon(QIcon(getPixmap("images/math/", toqstr(tbitem_.name_), "png")));
 813         if (sticky)
 814                 connect(this, SIGNAL(triggered(QAction *)),
 815                         this, SLOT(actionTriggered(QAction *)));
 816         connect(bar, SIGNAL(iconSizeChanged(QSize)),
 817                 this, SLOT(setIconSize(QSize)));
 818 }
 819
 820 void MenuButton::mousePressEvent(QMouseEvent * e)
 821 {
 822         if (initialized_) {
 823                 QToolButton::mousePressEvent(e);
 824                 return;
 825         }
 826
 827         initialized_ = true;
 828
 829         QString const label = qt_(to_ascii(tbitem_.label_));
 830         ButtonMenu * m = new ButtonMenu(label, this);
 831         m->setWindowTitle(label);
 832         m->setTearOffEnabled(true);
 833         connect(bar_, SIGNAL(updated()), m, SLOT(updateParent()));
 834         ToolbarInfo const * tbinfo = guiApp->toolbars().info(tbitem_.name_);
 835         if (!tbinfo) {
 836                 LYXERR0("Unknown toolbar " << tbitem_.name_);
 837                 return;
 838         }
 839         ToolbarInfo::item_iterator it = tbinfo->items.begin();
 840         ToolbarInfo::item_iterator const end = tbinfo->items.end();
 841         for (; it != end; ++it)
 842                 if (!getStatus(it->func_).unknown())
 843                         m->add(bar_->addItem(*it));
 844         setMenu(m);
 845
 846         QToolButton::mousePressEvent(e);
 847 }
 848
 849
 850 void MenuButton::actionTriggered(QAction * action)
 851 {
 852         QToolButton::setDefaultAction(action);
 853         setPopupMode(QToolButton::DelayedPopup);
 854 }
 855
 856
 857 void GuiToolbar::add(ToolbarItem const & item)
 858 {
 859         switch (item.type_) {
 860         case ToolbarItem::SEPARATOR:
 861                 addSeparator();
 862                 break;
 863         case ToolbarItem::LAYOUTS:
 864                 layout_ = new GuiLayoutBox(this, owner_);
 865                 addWidget(layout_);
 866                 break;
 867         case ToolbarItem::MINIBUFFER:
 868                 command_buffer_ = new GuiCommandBuffer(&owner_);
 869                 addWidget(command_buffer_);
 870                 /// \todo find a Qt4 equivalent to setHorizontalStretchable(true);
 871                 //setHorizontalStretchable(true);
 872                 break;
 873         case ToolbarItem::TABLEINSERT: {
 874                 QToolButton * tb = new QToolButton;
 875                 tb->setCheckable(true);
 876                 tb->setIcon(getIcon(FuncRequest(LFUN_TABULAR_INSERT), true));
 877                 QString const label = qt_(to_ascii(item.label_));
 878                 tb->setToolTip(label);
 879                 tb->setStatusTip(label);
 880                 tb->setText(label);
 881                 InsertTableWidget * iv = new InsertTableWidget(owner_, tb);
 882                 connect(tb, SIGNAL(clicked(bool)), iv, SLOT(show(bool)));
 883                 connect(iv, SIGNAL(visible(bool)), tb, SLOT(setChecked(bool)));
 884                 connect(this, SIGNAL(updated()), iv, SLOT(updateParent()));
 885                 addWidget(tb);
 886                 break;
 887                 }
 888         case ToolbarItem::ICONPALETTE:
 889                 addWidget(new PaletteButton(this, item));
 890                 break;
 891
 892         case ToolbarItem::POPUPMENU: {
 893                 addWidget(new MenuButton(this, item, false));
 894                 break;
 895                 }
 896         case ToolbarItem::STICKYPOPUPMENU: {
 897                 addWidget(new MenuButton(this, item, true));
 898                 break;
 899                 }
 900         case ToolbarItem::COMMAND: {
 901                 if (!getStatus(item.func_).unknown())
 902                         addAction(addItem(item));
 903                 break;
 904                 }
 905         default:
 906                 break;
 907         }
 908 }
 909
 910
 911 void GuiToolbar::update(bool in_math, bool in_table, bool in_review,
 912         bool in_mathmacrotemplate)
 913 {
 914         if (visibility_ & Toolbars::AUTO) {
 915                 bool show_it = (in_math && (visibility_ & Toolbars::MATH))
 916                         || (in_table && (visibility_ & Toolbars::TABLE))
 917                         || (in_review && (visibility_ & Toolbars::REVIEW))
 918                         || (in_mathmacrotemplate && (visibility_ & Toolbars::MATHMACROTEMPLATE));
 919                 setVisible(show_it);
 920         }
 921
 922         // update visible toolbars only
 923         if (!isVisible())
 924                 return;
 925
 926         // This is a speed bottleneck because this is called on every keypress
 927         // and update calls getStatus, which copies the cursor at least two times
 928         for (int i = 0; i < actions_.size(); ++i)
 929                 actions_[i]->update();
 930
 931         if (layout_)
 932                 layout_->setEnabled(lyx::getStatus(FuncRequest(LFUN_LAYOUT)).enabled());
 933
 934         // emit signal
 935         updated();
 936 }
 937
 938
 939 QString GuiToolbar::sessionKey() const
 940 {
 941         return "views/" + QString::number(owner_.id()) + "/" + objectName();
 942 }
 943
 944
 945 void GuiToolbar::saveSession() const
 946 {
 947         QSettings settings;
 948         settings.setValue(sessionKey() + "/visibility", visibility_);
 949 }
 950
 951
 952 void GuiToolbar::restoreSession()
 953 {
 954         QSettings settings;
 955         setVisibility(settings.value(sessionKey() + "/visibility").toInt());
 956 }
 957
 958
 959 void GuiToolbar::toggle()
 960 {
 961         docstring state;
 962         if (allowauto_) {
 963                 if (!(visibility_ & Toolbars::AUTO)) {
 964                         visibility_ |= Toolbars::AUTO;
 965                         hide();
 966                         state = _("auto");
 967                 } else {
 968                         visibility_ &= ~Toolbars::AUTO;
 969                         if (isVisible()) {
 970                                 hide();
 971                                 state = _("off");
 972                         } else {
 973                                 show();
 974                                 state = _("on");
 975                         }
 976                 }
 977         } else {
 978                 if (isVisible()) {
 979                         hide();
 980                         state = _("off");
 981                 } else {
 982                         show();
 983                         state = _("on");
 984                 }
 985         }
 986
 987         owner_.message(bformat(_("Toolbar \"%1$s\" state set to %2$s"),
 988                 qstring_to_ucs4(windowTitle()), state));
 989 }
 990
 991 } // namespace frontend
 992 } // namespace lyx
 993
 994 #include "moc_GuiToolbar.cpp"