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 Abdelrazak Younes
  11  *
  12  * Full author contact details are available in file CREDITS.
  13  */
  14
  15 #include <config.h>
  16
  17 #include "GuiView.h"
  18 #include "GuiCommandBuffer.h"
  19 #include "GuiToolbar.h"
  20 #include "LyXAction.h"
  21 #include "Action.h"
  22 #include "qt_helpers.h"
  23 #include "InsertTableWidget.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 "IconPalette.h"
  32 #include "Layout.h"
  33 #include "LyXFunc.h"
  34 #include "LyXRC.h"
  35 #include "Paragraph.h"
  36 #include "TextClass.h"
  37 #include "ToolbarBackend.h"
  38
  39 #include "support/debug.h"
  40 #include "support/filetools.h"
  41 #include "support/gettext.h"
  42 #include "support/lstrings.h"
  43 #include "support/lyxalgo.h" // sorted
  44
  45 #include <QAbstractItemDelegate>
  46 #include <QAbstractTextDocumentLayout>
  47 #include <QApplication>
  48 #include <QComboBox>
  49 #include <QHeaderView>
  50 #include <QKeyEvent>
  51 #include <QList>
  52 #include <QPainter>
  53 #include <QPixmap>
  54 #include <QSortFilterProxyModel>
  55 #include <QStandardItem>
  56 #include <QStandardItemModel>
  57 #include <QTextDocument>
  58 #include <QToolBar>
  59 #include <QToolButton>
  60 #include <QVariant>
  61
  62 #include <boost/assert.hpp>
  63
  64 using namespace std;
  65 using namespace lyx::support;
  66
  67 static void initializeResources()
  68 {
  69         static bool initialized = false;
  70         if (!initialized) {
  71                 Q_INIT_RESOURCE(Resources);
  72                 initialized = true;
  73         }
  74 }
  75
  76
  77 namespace lyx {
  78 namespace frontend {
  79
  80 namespace {
  81
  82 struct PngMap {
  83         char const * key;
  84         char const * value;
  85 };
  86
  87
  88 bool operator<(PngMap const & lhs, PngMap const & rhs)
  89 {
  90                 return strcmp(lhs.key, rhs.key) < 0;
  91 }
  92
  93
  94 class CompareKey {
  95 public:
  96         CompareKey(string const & name) : name_(name) {}
  97         bool operator()(PngMap const & other) const { return other.key == name_; }
  98 private:
  99         string const name_;
 100 };
 101
 102
 103 PngMap sorted_png_map[] = {
 104         { "Bumpeq", "bumpeq2" },
 105         { "Cap", "cap2" },
 106         { "Cup", "cup2" },
 107         { "Delta", "delta2" },
 108         { "Downarrow", "downarrow2" },
 109         { "Gamma", "gamma2" },
 110         { "Lambda", "lambda2" },
 111         { "Leftarrow", "leftarrow2" },
 112         { "Leftrightarrow", "leftrightarrow2" },
 113         { "Longleftarrow", "longleftarrow2" },
 114         { "Longleftrightarrow", "longleftrightarrow2" },
 115         { "Longrightarrow", "longrightarrow2" },
 116         { "Omega", "omega2" },
 117         { "Phi", "phi2" },
 118         { "Pi", "pi2" },
 119         { "Psi", "psi2" },
 120         { "Rightarrow", "rightarrow2" },
 121         { "Sigma", "sigma2" },
 122         { "Subset", "subset2" },
 123         { "Supset", "supset2" },
 124         { "Theta", "theta2" },
 125         { "Uparrow", "uparrow2" },
 126         { "Updownarrow", "updownarrow2" },
 127         { "Upsilon", "upsilon2" },
 128         { "Vdash", "vdash3" },
 129         { "Xi", "xi2" },
 130         { "nLeftarrow", "nleftarrow2" },
 131         { "nLeftrightarrow", "nleftrightarrow2" },
 132         { "nRightarrow", "nrightarrow2" },
 133         { "nVDash", "nvdash3" },
 134         { "nvDash", "nvdash2" },
 135         { "textrm \\AA", "textrm_AA"},
 136         { "textrm \\O", "textrm_O"},
 137         { "vDash", "vdash2" }
 138 };
 139
 140 size_t const nr_sorted_png_map = sizeof(sorted_png_map) / sizeof(PngMap);
 141
 142
 143 string const find_png(string const & name)
 144 {
 145         PngMap const * const begin = sorted_png_map;
 146         PngMap const * const end = begin + nr_sorted_png_map;
 147         BOOST_ASSERT(sorted(begin, end));
 148
 149         PngMap const * const it = find_if(begin, end, CompareKey(name));
 150
 151         string png_name;
 152         if (it != end)
 153                 png_name = it->value;
 154         else {
 155                 png_name = subst(name, "_", "underscore");
 156                 png_name = subst(png_name, ' ', '_');
 157
 158                 // This way we can have "math-delim { }" on the toolbar.
 159                 png_name = subst(png_name, "(", "lparen");
 160                 png_name = subst(png_name, ")", "rparen");
 161                 png_name = subst(png_name, "[", "lbracket");
 162                 png_name = subst(png_name, "]", "rbracket");
 163                 png_name = subst(png_name, "{", "lbrace");
 164                 png_name = subst(png_name, "}", "rbrace");
 165                 png_name = subst(png_name, "|", "bars");
 166                 png_name = subst(png_name, ",", "thinspace");
 167                 png_name = subst(png_name, ":", "mediumspace");
 168                 png_name = subst(png_name, ";", "thickspace");
 169                 png_name = subst(png_name, "!", "negthinspace");
 170         }
 171
 172         LYXERR(Debug::GUI, "find_png(" << name << ")\n"
 173                 << "Looking for math PNG called \"" << png_name << '"');
 174         return png_name;
 175 }
 176
 177 } // namespace anon
 178
 179
 180 /// return a icon for the given action
 181 static QIcon getIcon(FuncRequest const & f, bool unknown)
 182 {
 183         initializeResources();
 184         QPixmap pm;
 185         string name1;
 186         string name2;
 187         string path;
 188         string fullname;
 189
 190         switch (f.action) {
 191         case LFUN_MATH_INSERT:
 192                 if (!f.argument().empty()) {
 193                         path = "math/";
 194                         name1 = find_png(to_utf8(f.argument()).substr(1));
 195                 }
 196                 break;
 197         case LFUN_MATH_DELIM:
 198         case LFUN_MATH_BIGDELIM:
 199                 path = "math/";
 200                 name1 = find_png(to_utf8(f.argument()));
 201                 break;
 202         case LFUN_CALL:
 203                 path = "commands/";
 204                 name1 = to_utf8(f.argument());
 205                 break;
 206         default:
 207                 name2 = lyxaction.getActionName(f.action);
 208                 name1 = name2;
 209
 210                 if (!f.argument().empty())
 211                         name1 = subst(name2 + ' ' + to_utf8(f.argument()), ' ', '_');
 212         }
 213
 214         fullname = libFileSearch("images/" + path, name1, "png").absFilename();
 215         if (pm.load(toqstr(fullname)))
 216                 return pm;
 217
 218         fullname = libFileSearch("images/" + path, name2, "png").absFilename();
 219         if (pm.load(toqstr(fullname)))
 220                 return pm;
 221
 222         if (pm.load(":/images/" + toqstr(path + name1) + ".png"))
 223                 return pm;
 224
 225         if (pm.load(":/images/" + toqstr(path + name2) + ".png"))
 226                 return pm;
 227
 228         LYXERR(Debug::GUI, "Cannot find icon for command \""
 229                            << lyxaction.getActionName(f.action)
 230                            << '(' << to_utf8(f.argument()) << ")\"");
 231         if (unknown)
 232                 pm.load(":/images/unknown.png");
 233
 234         return pm;
 235 }
 236
 237
 238 /////////////////////////////////////////////////////////////////////
 239 //
 240 // GuiLayoutBox
 241 //
 242 /////////////////////////////////////////////////////////////////////
 243
 244 class FilterItemDelegate : public QAbstractItemDelegate {
 245 public:
 246         ///
 247         explicit FilterItemDelegate(QObject * parent = 0)
 248         : QAbstractItemDelegate(parent) {}
 249
 250         ///
 251         void paint(QPainter * painter, QStyleOptionViewItem const & option,
 252                 QModelIndex const & index) const {
 253                 QComboBox * combo = static_cast<QComboBox const *>(parent());
 254
 255                 // Draw using the menu item style (this is how QComboBox does it).
 256                 // But for the rich text drawing below we will call it with an
 257                 // empty string, and later then draw over it the real string.
 258                 painter->save();
 259                 QStyleOptionMenuItem opt = getStyleOption(option, index);
 260                 QString text = underlineFilter(opt.text);
 261                 opt.text = QString();
 262                 painter->eraseRect(option.rect);
 263                 combo->style()->drawControl(QStyle::CE_MenuItem, &opt, painter, combo->view());
 264                 painter->restore();
 265
 266                 // don't draw string for separator
 267                 if (opt.menuItemType == QStyleOptionMenuItem::Separator)
 268                         return;
 269
 270                 // Draw the rich text.
 271                 painter->save();
 272                 QColor col = opt.palette.text().color();
 273                 if (opt.state & QStyle::State_Selected)
 274                         col = opt.palette.highlightedText().color();
 275                 QAbstractTextDocumentLayout::PaintContext context;
 276                 context.palette.setColor(QPalette::Text, col);
 277
 278                 QTextDocument doc;
 279                 doc.setDefaultFont(opt.font);
 280                 doc.setHtml(text);
 281                 painter->translate(opt.rect.x() + 20, opt.rect.y());
 282                 doc.documentLayout()->draw(painter, context);
 283                 painter->restore();
 284         }
 285
 286         ///
 287         QSize sizeHint(QStyleOptionViewItem const & option,
 288                 QModelIndex const & index) const {
 289                 QComboBox * combo = static_cast<QComboBox const *>(parent());
 290
 291                 QStyleOptionMenuItem opt = getStyleOption(option, index);
 292                 return combo->style()->sizeFromContents(
 293                          QStyle::CT_MenuItem, &opt, option.rect.size(), combo);
 294         }
 295
 296 private:
 297         ///
 298         QString underlineFilter(QString const & s) const
 299         {
 300                 // get filter
 301                 GuiLayoutBox * p = static_cast<GuiLayoutBox *>(parent());
 302                 QString const & f = p->filter();
 303                 if (f.isEmpty())
 304                         return s;
 305
 306                 // step through data item and put "(x)" for every matching character
 307                 QString r;
 308                 int lastp = -1;
 309                 p->filter();
 310                 for (int i = 0; i < f.length(); ++i) {
 311                         int p = s.indexOf(f[i], lastp + 1, Qt::CaseInsensitive);
 312                         BOOST_ASSERT(p != -1);
 313                         if (lastp == p - 1 && lastp != -1) {
 314                                 // remove ")" and append "x)"
 315                                 r = r.left(r.length() - 4) + s[p] + "</u>";
 316                         } else {
 317                                 // append "(x)"
 318                                 r += s.mid(lastp + 1, p - lastp - 1);
 319                                 r += QString("<u>") + s[p] + "</u>";
 320                         }
 321                         lastp = p;
 322                 }
 323                 r += s.mid(lastp + 1);
 324                 return r;
 325         }
 326
 327         ///
 328         QStyleOptionMenuItem getStyleOption(QStyleOptionViewItem const & option,
 329                 QModelIndex const & index) const
 330         {
 331                 QComboBox * combo = static_cast<QComboBox const *>(parent());
 332
 333                 // create the options for a menu item
 334                 QStyleOptionMenuItem menuOption;
 335                 menuOption.palette = QApplication::palette("QMenu");
 336                 menuOption.state = QStyle::State_Active | QStyle::State_Enabled;
 337                 if (option.state & QStyle::State_Selected)
 338                         menuOption.state |= QStyle::State_Selected;
 339                 menuOption.checkType = QStyleOptionMenuItem::NonExclusive;
 340                 menuOption.checked = combo->currentIndex() == index.row();
 341                 menuOption.text = index.model()->data(index, Qt::DisplayRole).toString()
 342                         .replace(QLatin1Char('&'), QLatin1String("&&"));
 343                 if (menuOption.text.left(2) == "--")
 344                         menuOption.menuItemType = QStyleOptionMenuItem::Separator;
 345                 else
 346                         menuOption.menuItemType = QStyleOptionMenuItem::Normal;
 347                 menuOption.tabWidth = 0;
 348                 menuOption.menuRect = option.rect;
 349                 menuOption.rect = option.rect;
 350                 menuOption.font = combo->font();
 351                 menuOption.fontMetrics = QFontMetrics(menuOption.font);
 352
 353                 return menuOption;
 354         }
 355 };
 356
 357
 358 class GuiFilterProxyModel : public QSortFilterProxyModel
 359 {
 360 public:
 361         ///
 362         GuiFilterProxyModel(QObject * parent)
 363         : QSortFilterProxyModel(parent) {}
 364
 365         ///
 366         void setCharFilter(QString const & f)
 367         {
 368                 setFilterRegExp(charFilterRegExp(f));
 369                 dataChanged(index(0, 0), index(rowCount() - 1, 1));
 370         }
 371
 372 private:
 373         ///
 374         QString charFilterRegExp(QString const & filter)
 375         {
 376                 QString re;
 377                 for (int i = 0; i < filter.length(); ++i)
 378                         re += ".*" + QRegExp::escape(filter[i]);
 379                 return re;
 380         }
 381 };
 382
 383
 384 GuiLayoutBox::GuiLayoutBox(GuiView & owner)
 385         : owner_(owner), filterItemDelegate_(new FilterItemDelegate(this))
 386 {
 387         setSizeAdjustPolicy(QComboBox::AdjustToContents);
 388         setFocusPolicy(Qt::ClickFocus);
 389         setMinimumWidth(sizeHint().width());
 390         setMaxVisibleItems(100);
 391
 392         // set the layout model with two columns
 393         // 1st: translated layout names
 394         // 2nd: raw layout names
 395         model_ = new QStandardItemModel(0, 2, this);
 396         filterModel_ = new GuiFilterProxyModel(this);
 397         filterModel_->setSourceModel(model_);
 398         filterModel_->setDynamicSortFilter(true);
 399         filterModel_->setFilterCaseSensitivity(Qt::CaseInsensitive);
 400         setModel(filterModel_);
 401
 402         // for the filtering we have to intercept characters
 403         view()->installEventFilter(this);
 404         view()->setItemDelegateForColumn(0, filterItemDelegate_);
 405
 406         QObject::connect(this, SIGNAL(activated(int)),
 407                          this, SLOT(selected(int)));
 408         owner_.setLayoutDialog(this);
 409         updateContents(true);
 410 }
 411
 412
 413 void GuiLayoutBox::setFilter(QString const & s)
 414 {
 415         // remember old selection
 416         int sel = currentIndex();
 417         if (sel != -1)
 418                 lastSel_ = filterModel_->mapToSource(filterModel_->index(sel, 0)).row();
 419
 420         filter_ = s;
 421         filterModel_->setCharFilter(s);
 422
 423         // restore old selection
 424         if (lastSel_ != -1) {
 425                 QModelIndex i = filterModel_->mapFromSource(model_->index(lastSel_, 0));
 426                 if (i.isValid())
 427                         setCurrentIndex(i.row());
 428         }
 429
 430         // Workaround to resize to content size
 431         // FIXME: There must be a better way. The QComboBox::AdjustToContents)
 432         //        does not help.
 433         if (view()->isVisible())
 434                 showPopup();
 435 }
 436
 437
 438 void GuiLayoutBox::resetFilter()
 439 {
 440         setFilter(QString());
 441 }
 442
 443
 444 bool GuiLayoutBox::eventFilter(QObject * o, QEvent * e)
 445 {
 446         if (e->type() != QEvent::KeyPress)
 447                 return QComboBox::eventFilter(o, e);
 448
 449         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 450         bool modified = (ke->modifiers() == Qt::ControlModifier)
 451                 || (ke->modifiers() == Qt::AltModifier)
 452                 || (ke->modifiers() == Qt::MetaModifier);
 453
 454         switch (ke->key()) {
 455         case Qt::Key_Escape:
 456                 if (!modified && !filter_.isEmpty()) {
 457                         resetFilter();
 458                         return true;
 459                 }
 460                 break;
 461         case Qt::Key_Backspace:
 462                 if (!modified) {
 463                         // cut off one character
 464                         setFilter(filter_.left(filter_.length() - 1));
 465                 }
 466                 break;
 467         default:
 468                 if (modified || ke->text().isEmpty())
 469                         break;
 470                 // find chars for the filter string
 471                 QString s;
 472                 for (int i = 0; i < ke->text().length(); ++i) {
 473                         QChar c = ke->text()[i];
 474                         if (c.isLetterOrNumber()
 475                             || c.isSymbol()
 476                             || c.isPunct()
 477                             || c.category() == QChar::Separator_Space) {
 478                                 s += c;
 479                         }
 480                 }
 481                 if (!s.isEmpty()) {
 482                         // append new chars to the filter string
 483                         setFilter(filter_ + s);
 484                         return true;
 485                 }
 486                 break;
 487         }
 488
 489         return QComboBox::eventFilter(o, e);
 490 }
 491
 492
 493 void GuiLayoutBox::set(docstring const & layout)
 494 {
 495         resetFilter();
 496
 497         if (!text_class_)
 498                 return;
 499
 500         QString const & name = toqstr((*text_class_)[layout]->name());
 501         if (name == currentText())
 502                 return;
 503
 504         QList<QStandardItem *> r = model_->findItems(name, Qt::MatchExactly, 1);
 505         if (r.empty()) {
 506                 lyxerr << "Trying to select non existent layout type "
 507                         << fromqstr(name) << endl;
 508                 return;
 509         }
 510
 511         setCurrentIndex(filterModel_->mapFromSource(r.first()->index()).row());
 512 }
 513
 514
 515 void GuiLayoutBox::addItemSort(docstring const & item, bool sorted)
 516 {
 517         QString qitem = toqstr(item);
 518         QString titem = toqstr(translateIfPossible(item));
 519
 520         QList<QStandardItem *> row;
 521         row.append(new QStandardItem(titem));
 522         row.append(new QStandardItem(qitem));
 523
 524         // the simple unsorted case
 525         int const end = model_->rowCount();
 526         if (!sorted || end < 2 || qitem[0].category() != QChar::Letter_Uppercase) {
 527                 model_->appendRow(row);
 528                 return;
 529         }
 530
 531         // find row to insert the item, after the separator if it exists
 532         int i = 1; // skip the Standard layout
 533
 534         QList<QStandardItem *> sep = model_->findItems("--", Qt::MatchStartsWith);
 535         if (!sep.isEmpty())
 536                 i = sep.first()->index().row() + 1;
 537         if (i < model_->rowCount()) {
 538                 // find alphabetic position
 539                 QString is = model_->item(i, 0)->text();
 540                 while (is.compare(titem) < 0) {
 541                         // e.g. --Separator--
 542                         if (is[0].category() != QChar::Letter_Uppercase)
 543                                 break;
 544                         ++i;
 545                         if (i == end)
 546                                 break;
 547                         is = model_->item(i, 0)->text();
 548                 }
 549         }
 550
 551         model_->insertRow(i, row);
 552 }
 553
 554
 555 void GuiLayoutBox::updateContents(bool reset)
 556 {
 557         resetFilter();
 558
 559         Buffer const * buffer = owner_.buffer();
 560         if (!buffer) {
 561                 model_->clear();
 562                 setEnabled(false);
 563                 text_class_ = 0;
 564                 inset_ = 0;
 565                 return;
 566         }
 567
 568         // we'll only update the layout list if the text class has changed
 569         // or we've moved from one inset to another
 570         DocumentClass const * text_class = &buffer->params().documentClass();
 571         Inset const * inset =
 572         owner_.view()->cursor().innerParagraph().inInset();
 573         if (!reset && text_class_ == text_class && inset_ == inset) {
 574                 set(owner_.view()->cursor().innerParagraph().layout()->name());
 575                 return;
 576         }
 577
 578         inset_ = inset;
 579         text_class_ = text_class;
 580
 581         model_->clear();
 582         for (size_t i = 0; i != text_class_->layoutCount(); ++i) {
 583                 Layout const & lt = *text_class_->layout(i);
 584                 docstring const & name = lt.name();
 585                 // if this inset requires the empty layout, we skip the default
 586                 // layout
 587                 if (name == text_class_->defaultLayoutName() && inset &&
 588                     (inset->forceEmptyLayout() || inset->useEmptyLayout()))
 589                         continue;
 590                 // if it doesn't require the empty layout, we skip it
 591                 if (name == text_class_->emptyLayoutName() && inset &&
 592                     !inset->forceEmptyLayout() && !inset->useEmptyLayout())
 593                         continue;
 594                 addItemSort(name, lyxrc.sort_layouts);
 595         }
 596
 597         set(owner_.view()->cursor().innerParagraph().layout()->name());
 598
 599         // needed to recalculate size hint
 600         hide();
 601         setMinimumWidth(sizeHint().width());
 602         setEnabled(!buffer->isReadonly());
 603         show();
 604 }
 605
 606
 607 void GuiLayoutBox::selected(int index)
 608 {
 609         // get selection
 610         QModelIndex mindex = filterModel_->mapToSource(filterModel_->index(index, 1));
 611         docstring const name = qstring_to_ucs4(model_->itemFromIndex(mindex)->text());
 612
 613         owner_.setFocus();
 614
 615         if (!text_class_) {
 616                 updateContents(false);
 617                 resetFilter();
 618                 return;
 619         }
 620
 621         // find corresponding text class
 622         for (size_t i = 0; i != text_class_->layoutCount(); ++i) {
 623                 docstring const & itname = text_class_->layout(i)->name();
 624                 if (itname == name) {
 625                         FuncRequest const func(LFUN_LAYOUT, itname,
 626                                                FuncRequest::TOOLBAR);
 627                         theLyXFunc().setLyXView(&owner_);
 628                         lyx::dispatch(func);
 629                         updateContents(false);
 630                         resetFilter();
 631                         return;
 632                 }
 633         }
 634         lyxerr << "ERROR (layoutSelected): layout not found!" << endl;
 635 }
 636
 637
 638
 639 /////////////////////////////////////////////////////////////////////
 640 //
 641 // GuiToolbar
 642 //
 643 /////////////////////////////////////////////////////////////////////
 644
 645
 646 GuiToolbar::GuiToolbar(ToolbarInfo const & tbinfo, GuiView & owner)
 647         : QToolBar(qt_(tbinfo.gui_name), &owner), owner_(owner),
 648           layout_(0), command_buffer_(0)
 649 {
 650         // give visual separation between adjacent toolbars
 651         addSeparator();
 652
 653         // TODO: save toolbar position
 654         setMovable(true);
 655
 656         ToolbarInfo::item_iterator it = tbinfo.items.begin();
 657         ToolbarInfo::item_iterator end = tbinfo.items.end();
 658         for (; it != end; ++it)
 659                 add(*it);
 660 }
 661
 662
 663 Action * GuiToolbar::addItem(ToolbarItem const & item)
 664 {
 665         Action * act = new Action(owner_,
 666                 getIcon(item.func_, false),
 667           toqstr(item.label_), item.func_, toqstr(item.label_));
 668         actions_.append(act);
 669         return act;
 670 }
 671
 672 namespace {
 673
 674 class PaletteButton : public QToolButton
 675 {
 676 private:
 677         GuiToolbar * bar_;
 678         ToolbarItem const & tbitem_;
 679         bool initialized_;
 680 public:
 681         PaletteButton(GuiToolbar * bar, ToolbarItem const & item)
 682                 : QToolButton(bar), bar_(bar), tbitem_(item), initialized_(false)
 683         {
 684                 QString const label = qt_(to_ascii(tbitem_.label_));
 685                 setToolTip(label);
 686                 setStatusTip(label);
 687                 setText(label);
 688                 connect(bar_, SIGNAL(iconSizeChanged(QSize)),
 689                         this, SLOT(setIconSize(QSize)));
 690                 setCheckable(true);
 691                 ToolbarInfo const * tbinfo =
 692                         toolbarbackend.getDefinedToolbarInfo(tbitem_.name_);
 693                 if (tbinfo)
 694                         // use the icon of first action for the toolbar button
 695                         setIcon(getIcon(tbinfo->items.begin()->func_, true));
 696         }
 697
 698         void mousePressEvent(QMouseEvent * e)
 699         {
 700                 if (initialized_) {
 701                         QToolButton::mousePressEvent(e);
 702                         return;
 703                 }
 704
 705                 initialized_ = true;
 706
 707                 ToolbarInfo const * tbinfo =
 708                         toolbarbackend.getDefinedToolbarInfo(tbitem_.name_);
 709                 if (!tbinfo) {
 710                         lyxerr << "Unknown toolbar " << tbitem_.name_ << endl;
 711                         return;
 712                 }
 713                 IconPalette * panel = new IconPalette(this);
 714                 QString const label = qt_(to_ascii(tbitem_.label_));
 715                 panel->setWindowTitle(label);
 716                 connect(this, SIGNAL(clicked(bool)), panel, SLOT(setVisible(bool)));
 717                 connect(panel, SIGNAL(visible(bool)), this, SLOT(setChecked(bool)));
 718                 ToolbarInfo::item_iterator it = tbinfo->items.begin();
 719                 ToolbarInfo::item_iterator const end = tbinfo->items.end();
 720                 for (; it != end; ++it)
 721                         if (!getStatus(it->func_).unknown())
 722                                 panel->addButton(bar_->addItem(*it));
 723
 724                 QToolButton::mousePressEvent(e);
 725         }
 726 };
 727
 728 class MenuButton : public QToolButton
 729 {
 730 private:
 731         GuiToolbar * bar_;
 732         ToolbarItem const & tbitem_;
 733         bool initialized_;
 734 public:
 735         MenuButton(GuiToolbar * bar, ToolbarItem const & item)
 736                 : QToolButton(bar), bar_(bar), tbitem_(item), initialized_(false)
 737         {
 738                 setPopupMode(QToolButton::InstantPopup);
 739                 QString const label = qt_(to_ascii(tbitem_.label_));
 740                 setToolTip(label);
 741                 setStatusTip(label);
 742                 setText(label);
 743                 setIcon(QPixmap(":images/math/" + toqstr(tbitem_.name_) + ".png"));
 744                 connect(bar, SIGNAL(iconSizeChanged(QSize)),
 745                         this, SLOT(setIconSize(QSize)));
 746         }
 747
 748         void mousePressEvent(QMouseEvent * e)
 749         {
 750                 if (initialized_) {
 751                         QToolButton::mousePressEvent(e);
 752                         return;
 753                 }
 754
 755                 initialized_ = true;
 756
 757                 QString const label = qt_(to_ascii(tbitem_.label_));
 758                 ButtonMenu * m = new ButtonMenu(label, this);
 759                 m->setWindowTitle(label);
 760                 m->setTearOffEnabled(true);
 761                 connect(bar_, SIGNAL(updated()), m, SLOT(updateParent()));
 762                 ToolbarInfo const * tbinfo =
 763                         toolbarbackend.getDefinedToolbarInfo(tbitem_.name_);
 764                 if (!tbinfo) {
 765                         lyxerr << "Unknown toolbar " << tbitem_.name_ << endl;
 766                         return;
 767                 }
 768                 ToolbarInfo::item_iterator it = tbinfo->items.begin();
 769                 ToolbarInfo::item_iterator const end = tbinfo->items.end();
 770                 for (; it != end; ++it)
 771                         if (!getStatus(it->func_).unknown())
 772                                 m->add(bar_->addItem(*it));
 773                 setMenu(m);
 774
 775                 QToolButton::mousePressEvent(e);
 776         }
 777 };
 778
 779 }
 780
 781
 782 void GuiToolbar::add(ToolbarItem const & item)
 783 {
 784         switch (item.type_) {
 785         case ToolbarItem::SEPARATOR:
 786                 addSeparator();
 787                 break;
 788         case ToolbarItem::LAYOUTS:
 789                 layout_ = new GuiLayoutBox(owner_);
 790                 addWidget(layout_);
 791                 break;
 792         case ToolbarItem::MINIBUFFER:
 793                 command_buffer_ = new GuiCommandBuffer(&owner_);
 794                 addWidget(command_buffer_);
 795                 /// \todo find a Qt4 equivalent to setHorizontalStretchable(true);
 796                 //setHorizontalStretchable(true);
 797                 break;
 798         case ToolbarItem::TABLEINSERT: {
 799                 QToolButton * tb = new QToolButton;
 800                 tb->setCheckable(true);
 801                 tb->setIcon(getIcon(FuncRequest(LFUN_TABULAR_INSERT), true));
 802                 QString const label = qt_(to_ascii(item.label_));
 803                 tb->setToolTip(label);
 804                 tb->setStatusTip(label);
 805                 tb->setText(label);
 806                 InsertTableWidget * iv = new InsertTableWidget(owner_, tb);
 807                 connect(tb, SIGNAL(clicked(bool)), iv, SLOT(show(bool)));
 808                 connect(iv, SIGNAL(visible(bool)), tb, SLOT(setChecked(bool)));
 809                 connect(this, SIGNAL(updated()), iv, SLOT(updateParent()));
 810                 addWidget(tb);
 811                 break;
 812                 }
 813         case ToolbarItem::ICONPALETTE:
 814                 addWidget(new PaletteButton(this, item));
 815                 break;
 816
 817         case ToolbarItem::POPUPMENU: {
 818                 addWidget(new MenuButton(this, item));
 819                 break;
 820                 }
 821         case ToolbarItem::COMMAND: {
 822                 if (!getStatus(item.func_).unknown())
 823                         addAction(addItem(item));
 824                 break;
 825                 }
 826         default:
 827                 break;
 828         }
 829 }
 830
 831
 832 void GuiToolbar::saveInfo(ToolbarSection::ToolbarInfo & tbinfo)
 833 {
 834         // if tbinfo.state == auto *do not* set on/off
 835         if (tbinfo.state != ToolbarSection::ToolbarInfo::AUTO) {
 836                 if (GuiToolbar::isVisible())
 837                         tbinfo.state = ToolbarSection::ToolbarInfo::ON;
 838                 else
 839                         tbinfo.state = ToolbarSection::ToolbarInfo::OFF;
 840         }
 841         //
 842         // no need to save it here.
 843         Qt::ToolBarArea loc = owner_.toolBarArea(this);
 844
 845         if (loc == Qt::TopToolBarArea)
 846                 tbinfo.location = ToolbarSection::ToolbarInfo::TOP;
 847         else if (loc == Qt::BottomToolBarArea)
 848                 tbinfo.location = ToolbarSection::ToolbarInfo::BOTTOM;
 849         else if (loc == Qt::RightToolBarArea)
 850                 tbinfo.location = ToolbarSection::ToolbarInfo::RIGHT;
 851         else if (loc == Qt::LeftToolBarArea)
 852                 tbinfo.location = ToolbarSection::ToolbarInfo::LEFT;
 853         else
 854                 tbinfo.location = ToolbarSection::ToolbarInfo::NOTSET;
 855
 856         // save toolbar position. They are not used to restore toolbar position
 857         // now because move(x,y) does not work for toolbar.
 858         tbinfo.posx = pos().x();
 859         tbinfo.posy = pos().y();
 860 }
 861
 862
 863 void GuiToolbar::updateContents()
 864 {
 865         // update visible toolbars only
 866         if (!isVisible())
 867                 return;
 868         // This is a speed bottleneck because this is called on every keypress
 869         // and update calls getStatus, which copies the cursor at least two times
 870         for (int i = 0; i < actions_.size(); ++i)
 871                 actions_[i]->update();
 872
 873         if (layout_)
 874                 layout_->setEnabled(lyx::getStatus(FuncRequest(LFUN_LAYOUT)).enabled());
 875
 876         // emit signal
 877         updated();
 878 }
 879
 880
 881 } // namespace frontend
 882 } // namespace lyx
 883
 884 #include "GuiToolbar_moc.cpp"