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 "GuiView.h"
  19 #include "GuiCommandBuffer.h"
  20 #include "GuiToolbar.h"
  21 #include "LyXAction.h"
  22 #include "Action.h"
  23 #include "qt_helpers.h"
  24 #include "InsertTableWidget.h"
  25
  26 #include "Buffer.h"
  27 #include "BufferParams.h"
  28 #include "BufferView.h"
  29 #include "Cursor.h"
  30 #include "FuncRequest.h"
  31 #include "FuncStatus.h"
  32 #include "IconPalette.h"
  33 #include "Layout.h"
  34 #include "LyXFunc.h"
  35 #include "LyXRC.h"
  36 #include "Paragraph.h"
  37 #include "TextClass.h"
  38 #include "ToolbarBackend.h"
  39
  40 #include "support/debug.h"
  41 #include "support/filetools.h"
  42 #include "support/gettext.h"
  43 #include "support/lstrings.h"
  44 #include "support/lyxalgo.h" // sorted
  45
  46 #include <QAbstractItemDelegate>
  47 #include <QAbstractTextDocumentLayout>
  48 #include <QApplication>
  49 #include <QComboBox>
  50 #include <QFontMetrics>
  51 #include <QHeaderView>
  52 #include <QKeyEvent>
  53 #include <QList>
  54 #include <QListView>
  55 #include <QPainter>
  56 #include <QPixmap>
  57 #include <QSortFilterProxyModel>
  58 #include <QStandardItem>
  59 #include <QStandardItemModel>
  60 #include <QTextDocument>
  61 #include <QToolBar>
  62 #include <QToolButton>
  63 #include <QVariant>
  64
  65 #include <boost/assert.hpp>
  66
  67 #include <map>
  68 #include <vector>
  69
  70 using namespace std;
  71 using namespace lyx::support;
  72
  73 static void initializeResources()
  74 {
  75         static bool initialized = false;
  76         if (!initialized) {
  77                 Q_INIT_RESOURCE(Resources);
  78                 initialized = true;
  79         }
  80 }
  81
  82
  83 namespace lyx {
  84 namespace frontend {
  85
  86 namespace {
  87
  88 struct PngMap {
  89         QString key;
  90         QString value;
  91 };
  92
  93
  94 bool operator<(PngMap const & lhs, PngMap const & rhs)
  95 {
  96                 return lhs.key < rhs.key;
  97 }
  98
  99
 100 class CompareKey {
 101 public:
 102         CompareKey(QString const & name) : name_(name) {}
 103         bool operator()(PngMap const & other) const { return other.key == name_; }
 104 private:
 105         QString const name_;
 106 };
 107
 108
 109 PngMap sorted_png_map[] = {
 110         { "Bumpeq", "bumpeq2" },
 111         { "Cap", "cap2" },
 112         { "Cup", "cup2" },
 113         { "Delta", "delta2" },
 114         { "Downarrow", "downarrow2" },
 115         { "Gamma", "gamma2" },
 116         { "Lambda", "lambda2" },
 117         { "Leftarrow", "leftarrow2" },
 118         { "Leftrightarrow", "leftrightarrow2" },
 119         { "Longleftarrow", "longleftarrow2" },
 120         { "Longleftrightarrow", "longleftrightarrow2" },
 121         { "Longrightarrow", "longrightarrow2" },
 122         { "Omega", "omega2" },
 123         { "Phi", "phi2" },
 124         { "Pi", "pi2" },
 125         { "Psi", "psi2" },
 126         { "Rightarrow", "rightarrow2" },
 127         { "Sigma", "sigma2" },
 128         { "Subset", "subset2" },
 129         { "Supset", "supset2" },
 130         { "Theta", "theta2" },
 131         { "Uparrow", "uparrow2" },
 132         { "Updownarrow", "updownarrow2" },
 133         { "Upsilon", "upsilon2" },
 134         { "Vdash", "vdash3" },
 135         { "Xi", "xi2" },
 136         { "nLeftarrow", "nleftarrow2" },
 137         { "nLeftrightarrow", "nleftrightarrow2" },
 138         { "nRightarrow", "nrightarrow2" },
 139         { "nVDash", "nvdash3" },
 140         { "nvDash", "nvdash2" },
 141         { "textrm \\AA", "textrm_AA"},
 142         { "textrm \\O", "textrm_O"},
 143         { "vDash", "vdash2" }
 144 };
 145
 146 size_t const nr_sorted_png_map = sizeof(sorted_png_map) / sizeof(PngMap);
 147
 148
 149 QString findPng(QString const & name)
 150 {
 151         PngMap const * const begin = sorted_png_map;
 152         PngMap const * const end = begin + nr_sorted_png_map;
 153         BOOST_ASSERT(sorted(begin, end));
 154
 155         PngMap const * const it = find_if(begin, end, CompareKey(name));
 156
 157         QString png_name;
 158         if (it != end) {
 159                 png_name = it->value;
 160         } else {
 161                 png_name = name;
 162                 png_name.replace('_', "underscore");
 163                 png_name.replace(' ', '_');
 164
 165                 // This way we can have "math-delim { }" on the toolbar.
 166                 png_name.replace('(', "lparen");
 167                 png_name.replace(')', "rparen");
 168                 png_name.replace('[', "lbracket");
 169                 png_name.replace(']', "rbracket");
 170                 png_name.replace('{', "lbrace");
 171                 png_name.replace('}', "rbrace");
 172                 png_name.replace('|', "bars");
 173                 png_name.replace(',', "thinspace");
 174                 png_name.replace(':', "mediumspace");
 175                 png_name.replace(';', "thickspace");
 176                 png_name.replace('!', "negthinspace");
 177         }
 178
 179         LYXERR(Debug::GUI, "findPng(" << fromqstr(name) << ")\n"
 180                 << "Looking for math PNG called \"" << fromqstr(png_name) << '"');
 181         return png_name;
 182 }
 183
 184 } // namespace anon
 185
 186
 187 /// return a icon for the given action
 188 static QIcon getIcon(FuncRequest const & f, bool unknown)
 189 {
 190         initializeResources();
 191         QPixmap pm;
 192         QString name1;
 193         QString name2;
 194         QString path;
 195         switch (f.action) {
 196         case LFUN_MATH_INSERT:
 197                 if (!f.argument().empty()) {
 198                         path = "math/";
 199                         name1 = findPng(toqstr(f.argument()).mid(1));
 200                 }
 201                 break;
 202         case LFUN_MATH_DELIM:
 203         case LFUN_MATH_BIGDELIM:
 204                 path = "math/";
 205                 name1 = findPng(toqstr(f.argument()));
 206                 break;
 207         case LFUN_CALL:
 208                 path = "commands/";
 209                 name1 = toqstr(f.argument());
 210                 break;
 211         default:
 212                 name2 = toqstr(lyxaction.getActionName(f.action));
 213                 name1 = name2;
 214
 215                 if (!f.argument().empty()) {
 216                         name1 = name2 + ' ' + toqstr(f.argument());
 217                         name1.replace(' ', '_');
 218                 }
 219         }
 220
 221         string fullname = libFileSearch("images/" + path, name1, "png").absFilename();
 222         if (pm.load(toqstr(fullname)))
 223                 return pm;
 224
 225         fullname = libFileSearch("images/" + path, name2, "png").absFilename();
 226         if (pm.load(toqstr(fullname)))
 227                 return pm;
 228
 229         if (pm.load(":/images/" + path + name1 + ".png"))
 230                 return pm;
 231
 232         if (pm.load(":/images/" + path + name2 + ".png"))
 233                 return pm;
 234
 235         LYXERR(Debug::GUI, "Cannot find icon for command \""
 236                            << lyxaction.getActionName(f.action)
 237                            << '(' << to_utf8(f.argument()) << ")\"");
 238         if (unknown)
 239                 pm.load(":/images/unknown.png");
 240
 241         return pm;
 242 }
 243
 244
 245 /////////////////////////////////////////////////////////////////////
 246 //
 247 // GuiLayoutBox
 248 //
 249 /////////////////////////////////////////////////////////////////////
 250
 251 class LayoutItemDelegate : public QAbstractItemDelegate {
 252 public:
 253         ///
 254         explicit LayoutItemDelegate(QObject * parent = 0)
 255                 : QAbstractItemDelegate(parent)
 256         {}
 257
 258         ///
 259         void paint(QPainter * painter, QStyleOptionViewItem const & option,
 260                 QModelIndex const & index) const
 261         {
 262                 QComboBox * combo = static_cast<QComboBox *>(parent());
 263                 QSortFilterProxyModel const * model
 264                 = static_cast<QSortFilterProxyModel const *>(index.model());
 265                 QStyleOptionMenuItem opt = getStyleOption(option, index);
 266
 267                 painter->eraseRect(opt.rect);
 268
 269                 QString text = underlineFilter(opt.text);
 270                 opt.text = QString();
 271
 272                 // category header?
 273                 if (lyxrc.group_layouts) {
 274                         QString stdCat = category(*model->sourceModel(), 0);
 275                         QString cat = category(*index.model(), index.row());
 276
 277                         // not the standard layout and not the same as in the previous line?
 278                         if (stdCat != cat
 279                             && (index.row() == 0 || cat != category(*index.model(), index.row() - 1))) {
 280                                 // draw category header
 281                                 paintBackground(painter, opt);
 282                                 paintCategoryHeader(painter, opt,
 283                                         category(*index.model(), index.row()));
 284
 285                                 QFontMetrics fm(opt.font);
 286                                 opt.rect.setTop(opt.rect.top() + headerHeight(opt));
 287                                 opt.menuRect = opt.rect;
 288                         }
 289                 }
 290
 291                 // Draw using the menu item style (this is how QComboBox does it).
 292                 // But for the rich text drawing below we will call it with an
 293                 // empty string, and later then draw over it the real string.
 294                 painter->save();
 295                 combo->style()->drawControl(QStyle::CE_MenuItem, &opt, painter, combo->view());
 296                 painter->restore();
 297
 298                 // Draw the rich text.
 299                 painter->save();
 300                 QColor col = opt.palette.text().color();
 301                 if (opt.state & QStyle::State_Selected)
 302                         col = opt.palette.highlightedText().color();
 303                 QAbstractTextDocumentLayout::PaintContext context;
 304                 context.palette.setColor(QPalette::Text, col);
 305
 306                 QTextDocument doc;
 307                 doc.setDefaultFont(opt.font);
 308                 doc.setHtml(text);
 309                 painter->translate(opt.rect.x() + 5, opt.rect.y());
 310                 doc.documentLayout()->draw(painter, context);
 311                 painter->restore();
 312         }
 313
 314         ///
 315         QSize sizeHint(QStyleOptionViewItem const & option,
 316                 QModelIndex const & index) const
 317         {
 318                 GuiLayoutBox * combo = static_cast<GuiLayoutBox *>(parent());
 319                 QSortFilterProxyModel const * model
 320                 = static_cast<QSortFilterProxyModel const *>(index.model());
 321                 QStyleOptionMenuItem opt = getStyleOption(option, index);
 322                 QSize size = combo->style()->sizeFromContents(
 323                          QStyle::CT_MenuItem, &opt, option.rect.size(), combo);
 324
 325                 /// QComboBox uses the first row height to estimate the
 326                 /// complete popup height during QComboBox::showPopup().
 327                 /// To avoid scrolling we have to sneak in space for the headers.
 328                 /// So we tweak this value accordingly. It's not nice, but the
 329                 /// only possible way it seems.
 330                 if (lyxrc.group_layouts && index.row() == 0 && combo->inShowPopup_) {
 331                         int itemHeight = size.height();
 332
 333                         // we have to show \c cats many headers:
 334                         unsigned cats = combo->visibleCategories_;
 335
 336                         // and we have \c n items to distribute the needed space over
 337                         unsigned n = combo->model()->rowCount();
 338
 339                         // so the needed average height (rounded upwards) is:
 340                         size.setHeight((headerHeight(opt) * cats + itemHeight * n + n - 1) / n);
 341                         return size;
 342                 }
 343
 344                 // Add space for the category headers here?
 345                 // Not for the standard layout though.
 346                 QString stdCat = category(*model->sourceModel(), 0);
 347                 QString cat = category(*index.model(), index.row());
 348                 if (lyxrc.group_layouts && stdCat != cat
 349                     && (index.row() == 0 || cat != category(*index.model(), index.row() - 1))) {
 350                         size.setHeight(size.height() + headerHeight(opt));
 351                 }
 352
 353                 return size;
 354         }
 355
 356 private:
 357         ///
 358         QString category(QAbstractItemModel const & model, int row) const
 359         {
 360                 return model.data(model.index(row, 2), Qt::DisplayRole).toString();
 361         }
 362
 363         ///
 364         void paintBackground(QPainter * painter, QStyleOptionMenuItem const & opt) const
 365         {
 366                 QComboBox * combo = static_cast<QComboBox *>(parent());
 367
 368                 // we only want to paint a background using the style, so
 369                 // disable every thing else
 370                 QStyleOptionMenuItem sopt = opt;
 371                 sopt.menuRect = sopt.rect;
 372                 sopt.state = QStyle::State_Active | QStyle::State_Enabled;
 373                 sopt.checked = false;
 374                 sopt.text = QString();
 375
 376                 painter->save();
 377                 combo->style()->drawControl(QStyle::CE_MenuItem, &sopt,
 378                         painter, combo->view());
 379                 painter->restore();
 380         }
 381
 382         ///
 383         int headerHeight(QStyleOptionMenuItem const & opt) const
 384         {
 385                 QFontMetrics fm(opt.font);
 386                 return fm.height() * 8 / 10;
 387         }
 388         ///
 389         void paintCategoryHeader(QPainter * painter, QStyleOptionMenuItem const & opt,
 390                 QString const & category) const
 391         {
 392                 painter->save();
 393
 394                 // slightly blended color
 395                 QColor lcol = opt.palette.text().color();
 396                 lcol.setAlpha(127);
 397                 painter->setPen(lcol);
 398
 399                 // set 80% scaled, bold font
 400                 QFont font = opt.font;
 401                 font.setBold(true);
 402                 font.setWeight(QFont::Black);
 403                 font.setPointSize(opt.font.pointSize() * 8 / 10);
 404                 painter->setFont(font);
 405
 406                 // draw the centered text
 407                 QFontMetrics fm(font);
 408                 int w = fm.width(category);
 409                 int x = opt.rect.x() + (opt.rect.width() - w) / 2;
 410                 int y = opt.rect.y() + fm.ascent();
 411                 int left = x;
 412                 int right = x + w;
 413                 painter->drawText(x, y, category);
 414
 415                 // the vertical position of the line: middle of lower case chars
 416                 int ymid = y - 1 - fm.xHeight() / 2; // -1 for the baseline
 417
 418                 // draw the horizontal line
 419                 if (!category.isEmpty()) {
 420                         painter->drawLine(opt.rect.x(), ymid, left - 1, ymid);
 421                         painter->drawLine(right + 1, ymid, opt.rect.right(), ymid);
 422                 } else
 423                         painter->drawLine(opt.rect.x(), ymid, opt.rect.right(), ymid);
 424
 425                 painter->restore();
 426         }
 427
 428
 429         ///
 430         QString underlineFilter(QString const & s) const
 431         {
 432                 // get filter
 433                 GuiLayoutBox * p = static_cast<GuiLayoutBox *>(parent());
 434                 QString const & f = p->filter();
 435                 if (f.isEmpty())
 436                         return s;
 437
 438                 // step through data item and put "(x)" for every matching character
 439                 QString r;
 440                 int lastp = -1;
 441                 p->filter();
 442                 for (int i = 0; i < f.length(); ++i) {
 443                         int p = s.indexOf(f[i], lastp + 1, Qt::CaseInsensitive);
 444                         BOOST_ASSERT(p != -1);
 445                         if (lastp == p - 1 && lastp != -1) {
 446                                 // remove ")" and append "x)"
 447                                 r = r.left(r.length() - 4) + s[p] + "</u>";
 448                         } else {
 449                                 // append "(x)"
 450                                 r += s.mid(lastp + 1, p - lastp - 1);
 451                                 r += QString("<u>") + s[p] + "</u>";
 452                         }
 453                         lastp = p;
 454                 }
 455                 r += s.mid(lastp + 1);
 456                 return r;
 457         }
 458
 459         ///
 460         QStyleOptionMenuItem getStyleOption(QStyleOptionViewItem const & option,
 461                 QModelIndex const & index) const
 462         {
 463                 QComboBox * combo = static_cast<QComboBox *>(parent());
 464
 465                 // create the options for a menu item
 466                 QStyleOptionMenuItem menuOption;
 467                 menuOption.palette = QApplication::palette("QMenu");
 468                 menuOption.state = QStyle::State_Active | QStyle::State_Enabled;
 469                 menuOption.menuRect = option.rect;
 470                 menuOption.rect = option.rect;
 471                 menuOption.font = combo->font();
 472                 menuOption.fontMetrics = QFontMetrics(menuOption.font);
 473                 menuOption.tabWidth = 0;
 474                 menuOption.text = index.model()->data(index, Qt::DisplayRole).toString()
 475                         .replace(QLatin1Char('&'), QLatin1String("&&"));
 476                 menuOption.menuItemType = QStyleOptionMenuItem::Normal;
 477                 if (option.state & QStyle::State_Selected)
 478                         menuOption.state |= QStyle::State_Selected;
 479                 menuOption.checkType = QStyleOptionMenuItem::NotCheckable;
 480                 menuOption.checked = false;
 481                 return menuOption;
 482         }
 483 };
 484
 485
 486 class GuiLayoutFilterModel : public QSortFilterProxyModel {
 487 public:
 488         ///
 489         GuiLayoutFilterModel(QObject * parent = 0)
 490                 : QSortFilterProxyModel(parent)
 491         {}
 492
 493         ///
 494         void triggerLayoutChange()
 495         {
 496                 layoutAboutToBeChanged();
 497                 layoutChanged();
 498         }
 499 };
 500
 501
 502 GuiLayoutBox::GuiLayoutBox(GuiView & owner)
 503         : owner_(owner), lastSel_(-1), layoutItemDelegate_(new LayoutItemDelegate(this)),
 504           visibleCategories_(0), inShowPopup_(false)
 505 {
 506         setSizeAdjustPolicy(QComboBox::AdjustToContents);
 507         setFocusPolicy(Qt::ClickFocus);
 508         setMinimumWidth(sizeHint().width());
 509         setMaxVisibleItems(100);
 510
 511         // set the layout model with two columns
 512         // 1st: translated layout names
 513         // 2nd: raw layout names
 514         model_ = new QStandardItemModel(0, 2, this);
 515         filterModel_ = new GuiLayoutFilterModel(this);
 516         filterModel_->setSourceModel(model_);
 517         setModel(filterModel_);
 518
 519         // for the filtering we have to intercept characters
 520         view()->installEventFilter(this);
 521         view()->setItemDelegateForColumn(0, layoutItemDelegate_);
 522
 523         QObject::connect(this, SIGNAL(activated(int)),
 524                          this, SLOT(selected(int)));
 525         owner_.setLayoutDialog(this);
 526         updateContents(true);
 527 }
 528
 529
 530 void GuiLayoutBox::setFilter(QString const & s)
 531 {
 532         if (!s.isEmpty())
 533                 owner_.message(_("Filtering layouts with \"" + fromqstr(s) + "\". "
 534                         "Press ESC to remove filter."));
 535         else
 536                 owner_.message(_("Enter characters to filter the layout list."));
 537
 538         bool enabled = view()->updatesEnabled();
 539         view()->setUpdatesEnabled(false);
 540
 541         // remember old selection
 542         int sel = currentIndex();
 543         if (sel != -1)
 544                 lastSel_ = filterModel_->mapToSource(filterModel_->index(sel, 0)).row();
 545
 546         filter_ = s;
 547         filterModel_->setFilterRegExp(charFilterRegExp(filter_));
 548         countCategories();
 549
 550         // restore old selection
 551         if (lastSel_ != -1) {
 552                 QModelIndex i = filterModel_->mapFromSource(model_->index(lastSel_, 0));
 553                 if (i.isValid())
 554                         setCurrentIndex(i.row());
 555         }
 556
 557         // Workaround to resize to content size
 558         // FIXME: There must be a better way. The QComboBox::AdjustToContents)
 559         //        does not help.
 560         if (view()->isVisible()) {
 561                 // call QComboBox::showPopup. But set the inShowPopup_ flag to switch on
 562                 // the hack in the item delegate to make space for the headers.
 563                 // We do not call our implementation of showPopup because that
 564                 // would reset the filter again. This is only needed if the user clicks
 565                 // on the QComboBox.
 566                 BOOST_ASSERT(!inShowPopup_);
 567                 inShowPopup_ = true;
 568                 QComboBox::showPopup();
 569                 inShowPopup_ = false;
 570
 571                 // The item delegate hack is off again. So trigger a relayout of the popup.
 572                 filterModel_->triggerLayoutChange();
 573         }
 574
 575         view()->setUpdatesEnabled(enabled);
 576 }
 577
 578
 579 void GuiLayoutBox::countCategories()
 580 {
 581         int n = filterModel_->rowCount();
 582         visibleCategories_ = 0;
 583         if (n == 0 || !lyxrc.group_layouts)
 584                 return;
 585
 586         // skip the "Standard" category
 587         QString prevCat = model_->index(0, 2).data().toString();
 588
 589         // count categories
 590         for (int i = 0; i < n; ++i) {
 591                 QString cat = filterModel_->index(i, 2).data().toString();
 592                 if (cat != prevCat)
 593                         ++visibleCategories_;
 594                 prevCat = cat;
 595         }
 596 }
 597
 598
 599 QString GuiLayoutBox::charFilterRegExp(QString const & filter)
 600 {
 601         QString re;
 602         for (int i = 0; i < filter.length(); ++i) {
 603                 QChar c = filter[i];
 604                 if (c.isLower())
 605                         re += ".*[" + QRegExp::escape(c) + QRegExp::escape(c.toUpper()) + "]";
 606                 else
 607                         re += ".*" + QRegExp::escape(c);
 608         }
 609         return re;
 610 }
 611
 612
 613 void GuiLayoutBox::resetFilter()
 614 {
 615         setFilter(QString());
 616 }
 617
 618
 619 void GuiLayoutBox::showPopup()
 620 {
 621         owner_.message(_("Enter characters to filter the layout list."));
 622
 623         bool enabled = view()->updatesEnabled();
 624         view()->setUpdatesEnabled(false);
 625
 626         resetFilter();
 627
 628         // call QComboBox::showPopup. But set the inShowPopup_ flag to switch on
 629         // the hack in the item delegate to make space for the headers.
 630         BOOST_ASSERT(!inShowPopup_);
 631         inShowPopup_ = true;
 632         QComboBox::showPopup();
 633         inShowPopup_ = false;
 634
 635         // The item delegate hack is off again. So trigger a relayout of the popup.
 636         filterModel_->triggerLayoutChange();
 637
 638         view()->setUpdatesEnabled(enabled);
 639 }
 640
 641
 642 bool GuiLayoutBox::eventFilter(QObject * o, QEvent * e)
 643 {
 644         if (e->type() != QEvent::KeyPress)
 645                 return QComboBox::eventFilter(o, e);
 646
 647         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 648         bool modified = (ke->modifiers() == Qt::ControlModifier)
 649                 || (ke->modifiers() == Qt::AltModifier)
 650                 || (ke->modifiers() == Qt::MetaModifier);
 651
 652         switch (ke->key()) {
 653         case Qt::Key_Escape:
 654                 if (!modified && !filter_.isEmpty()) {
 655                         resetFilter();
 656                         return true;
 657                 }
 658                 break;
 659         case Qt::Key_Backspace:
 660                 if (!modified) {
 661                         // cut off one character
 662                         setFilter(filter_.left(filter_.length() - 1));
 663                 }
 664                 break;
 665         default:
 666                 if (modified || ke->text().isEmpty())
 667                         break;
 668                 // find chars for the filter string
 669                 QString s;
 670                 for (int i = 0; i < ke->text().length(); ++i) {
 671                         QChar c = ke->text()[i];
 672                         if (c.isLetterOrNumber()
 673                             || c.isSymbol()
 674                             || c.isPunct()
 675                             || c.category() == QChar::Separator_Space) {
 676                                 s += c;
 677                         }
 678                 }
 679                 if (!s.isEmpty()) {
 680                         // append new chars to the filter string
 681                         setFilter(filter_ + s);
 682                         return true;
 683                 }
 684                 break;
 685         }
 686
 687         return QComboBox::eventFilter(o, e);
 688 }
 689
 690
 691 void GuiLayoutBox::set(docstring const & layout)
 692 {
 693         resetFilter();
 694
 695         if (!text_class_)
 696                 return;
 697
 698         QString const & name = toqstr((*text_class_)[layout].name());
 699         if (name == currentText())
 700                 return;
 701
 702         QList<QStandardItem *> r = model_->findItems(name, Qt::MatchExactly, 1);
 703         if (r.empty()) {
 704                 lyxerr << "Trying to select non existent layout type "
 705                         << fromqstr(name) << endl;
 706                 return;
 707         }
 708
 709         setCurrentIndex(filterModel_->mapFromSource(r.first()->index()).row());
 710 }
 711
 712
 713 void GuiLayoutBox::addItemSort(docstring const & item, docstring const & category,
 714         bool sorted, bool sortedByCat)
 715 {
 716         QString qitem = toqstr(item);
 717         QString titem = toqstr(translateIfPossible(item));
 718         QString qcat = toqstr(translateIfPossible(category));
 719
 720         QList<QStandardItem *> row;
 721         row.append(new QStandardItem(titem));
 722         row.append(new QStandardItem(qitem));
 723         row.append(new QStandardItem(qcat));
 724
 725         // the first entry is easy
 726         int const end = model_->rowCount();
 727         if (end == 0) {
 728                 model_->appendRow(row);
 729                 return;
 730         }
 731
 732         // find category
 733         int i = 0;
 734         if (sortedByCat) {
 735                 while (i < end && model_->item(i, 2)->text() != qcat)
 736                         ++i;
 737         }
 738
 739         // skip the Standard layout
 740         if (i == 0)
 741                 ++i;
 742
 743         // the simple unsorted case
 744         if (!sorted) {
 745                 if (sortedByCat) {
 746                         // jump to the end of the category group
 747                         while (i < end && model_->item(i, 2)->text() == qcat)
 748                                 ++i;
 749                         model_->insertRow(i, row);
 750                 } else
 751                         model_->appendRow(row);
 752                 return;
 753         }
 754
 755         // find row to insert the item, after the separator if it exists
 756         if (i < end) {
 757                 // find alphabetic position
 758                 while (i != end
 759                        && model_->item(i, 0)->text().compare(titem) < 0
 760                        && (!sortedByCat || model_->item(i, 2)->text() == qcat))
 761                         ++i;
 762         }
 763
 764         model_->insertRow(i, row);
 765 }
 766
 767
 768 void GuiLayoutBox::updateContents(bool reset)
 769 {
 770         resetFilter();
 771
 772         Buffer const * buffer = owner_.buffer();
 773         if (!buffer) {
 774                 model_->clear();
 775                 setEnabled(false);
 776                 text_class_ = 0;
 777                 inset_ = 0;
 778                 return;
 779         }
 780
 781         // we'll only update the layout list if the text class has changed
 782         // or we've moved from one inset to another
 783         DocumentClass const * text_class = &buffer->params().documentClass();
 784         Inset const * inset =
 785         owner_.view()->cursor().innerParagraph().inInset();
 786         if (!reset && text_class_ == text_class && inset_ == inset) {
 787                 set(owner_.view()->cursor().innerParagraph().layout().name());
 788                 return;
 789         }
 790
 791         inset_ = inset;
 792         text_class_ = text_class;
 793
 794         model_->clear();
 795         DocumentClass::const_iterator lit = text_class_->begin();
 796         DocumentClass::const_iterator len = text_class_->end();
 797         for (; lit != len; ++lit) {
 798                 docstring const & name = lit->name();
 799                 // if this inset requires the empty layout, we skip the default
 800                 // layout
 801                 if (name == text_class_->defaultLayoutName() && inset &&
 802                     (inset->forceEmptyLayout() || inset->useEmptyLayout()))
 803                         continue;
 804                 // if it doesn't require the empty layout, we skip it
 805                 if (name == text_class_->emptyLayoutName() && inset &&
 806                     !inset->forceEmptyLayout() && !inset->useEmptyLayout())
 807                         continue;
 808                 addItemSort(name, lit->category(), lyxrc.sort_layouts, lyxrc.group_layouts);
 809         }
 810
 811         set(owner_.view()->cursor().innerParagraph().layout().name());
 812         countCategories();
 813
 814         // needed to recalculate size hint
 815         hide();
 816         setMinimumWidth(sizeHint().width());
 817         setEnabled(!buffer->isReadonly());
 818         show();
 819 }
 820
 821
 822 void GuiLayoutBox::selected(int index)
 823 {
 824         // get selection
 825         QModelIndex mindex = filterModel_->mapToSource(filterModel_->index(index, 1));
 826         docstring const layoutName =
 827                 qstring_to_ucs4(model_->itemFromIndex(mindex)->text());
 828
 829         owner_.setFocus();
 830
 831         if (!text_class_) {
 832                 updateContents(false);
 833                 resetFilter();
 834                 return;
 835         }
 836
 837         // find corresponding text class
 838         if (text_class_->hasLayout(layoutName)) {
 839                 FuncRequest const func(LFUN_LAYOUT, layoutName, FuncRequest::TOOLBAR);
 840                 theLyXFunc().setLyXView(&owner_);
 841                 lyx::dispatch(func);
 842                 updateContents(false);
 843                 resetFilter();
 844                 return;
 845         }
 846         lyxerr << "ERROR (layoutSelected): layout not found!" << endl;
 847 }
 848
 849
 850
 851 /////////////////////////////////////////////////////////////////////
 852 //
 853 // GuiToolbar
 854 //
 855 /////////////////////////////////////////////////////////////////////
 856
 857
 858 GuiToolbar::GuiToolbar(ToolbarInfo const & tbinfo, GuiView & owner)
 859         : QToolBar(qt_(tbinfo.gui_name), &owner), owner_(owner),
 860           layout_(0), command_buffer_(0)
 861 {
 862         // give visual separation between adjacent toolbars
 863         addSeparator();
 864
 865         // TODO: save toolbar position
 866         setMovable(true);
 867
 868         ToolbarInfo::item_iterator it = tbinfo.items.begin();
 869         ToolbarInfo::item_iterator end = tbinfo.items.end();
 870         for (; it != end; ++it)
 871                 add(*it);
 872 }
 873
 874
 875 Action * GuiToolbar::addItem(ToolbarItem const & item)
 876 {
 877         Action * act = new Action(owner_,
 878                 getIcon(item.func_, false),
 879           toqstr(item.label_), item.func_, toqstr(item.label_));
 880         actions_.append(act);
 881         return act;
 882 }
 883
 884 namespace {
 885
 886 class PaletteButton : public QToolButton
 887 {
 888 private:
 889         GuiToolbar * bar_;
 890         ToolbarItem const & tbitem_;
 891         bool initialized_;
 892 public:
 893         PaletteButton(GuiToolbar * bar, ToolbarItem const & item)
 894                 : QToolButton(bar), bar_(bar), tbitem_(item), initialized_(false)
 895         {
 896                 QString const label = qt_(to_ascii(tbitem_.label_));
 897                 setToolTip(label);
 898                 setStatusTip(label);
 899                 setText(label);
 900                 connect(bar_, SIGNAL(iconSizeChanged(QSize)),
 901                         this, SLOT(setIconSize(QSize)));
 902                 setCheckable(true);
 903                 ToolbarInfo const * tbinfo =
 904                         toolbarbackend.getDefinedToolbarInfo(tbitem_.name_);
 905                 if (tbinfo)
 906                         // use the icon of first action for the toolbar button
 907                         setIcon(getIcon(tbinfo->items.begin()->func_, true));
 908         }
 909
 910         void mousePressEvent(QMouseEvent * e)
 911         {
 912                 if (initialized_) {
 913                         QToolButton::mousePressEvent(e);
 914                         return;
 915                 }
 916
 917                 initialized_ = true;
 918
 919                 ToolbarInfo const * tbinfo =
 920                         toolbarbackend.getDefinedToolbarInfo(tbitem_.name_);
 921                 if (!tbinfo) {
 922                         lyxerr << "Unknown toolbar " << tbitem_.name_ << endl;
 923                         return;
 924                 }
 925                 IconPalette * panel = new IconPalette(this);
 926                 QString const label = qt_(to_ascii(tbitem_.label_));
 927                 panel->setWindowTitle(label);
 928                 connect(this, SIGNAL(clicked(bool)), panel, SLOT(setVisible(bool)));
 929                 connect(panel, SIGNAL(visible(bool)), this, SLOT(setChecked(bool)));
 930                 ToolbarInfo::item_iterator it = tbinfo->items.begin();
 931                 ToolbarInfo::item_iterator const end = tbinfo->items.end();
 932                 for (; it != end; ++it)
 933                         if (!getStatus(it->func_).unknown())
 934                                 panel->addButton(bar_->addItem(*it));
 935
 936                 QToolButton::mousePressEvent(e);
 937         }
 938 };
 939
 940 class MenuButton : public QToolButton
 941 {
 942 private:
 943         GuiToolbar * bar_;
 944         ToolbarItem const & tbitem_;
 945         bool initialized_;
 946 public:
 947         MenuButton(GuiToolbar * bar, ToolbarItem const & item)
 948                 : QToolButton(bar), bar_(bar), tbitem_(item), initialized_(false)
 949         {
 950                 setPopupMode(QToolButton::InstantPopup);
 951                 QString const label = qt_(to_ascii(tbitem_.label_));
 952                 setToolTip(label);
 953                 setStatusTip(label);
 954                 setText(label);
 955                 setIcon(QPixmap(":images/math/" + toqstr(tbitem_.name_) + ".png"));
 956                 connect(bar, SIGNAL(iconSizeChanged(QSize)),
 957                         this, SLOT(setIconSize(QSize)));
 958         }
 959
 960         void mousePressEvent(QMouseEvent * e)
 961         {
 962                 if (initialized_) {
 963                         QToolButton::mousePressEvent(e);
 964                         return;
 965                 }
 966
 967                 initialized_ = true;
 968
 969                 QString const label = qt_(to_ascii(tbitem_.label_));
 970                 ButtonMenu * m = new ButtonMenu(label, this);
 971                 m->setWindowTitle(label);
 972                 m->setTearOffEnabled(true);
 973                 connect(bar_, SIGNAL(updated()), m, SLOT(updateParent()));
 974                 ToolbarInfo const * tbinfo =
 975                         toolbarbackend.getDefinedToolbarInfo(tbitem_.name_);
 976                 if (!tbinfo) {
 977                         lyxerr << "Unknown toolbar " << tbitem_.name_ << endl;
 978                         return;
 979                 }
 980                 ToolbarInfo::item_iterator it = tbinfo->items.begin();
 981                 ToolbarInfo::item_iterator const end = tbinfo->items.end();
 982                 for (; it != end; ++it)
 983                         if (!getStatus(it->func_).unknown())
 984                                 m->add(bar_->addItem(*it));
 985                 setMenu(m);
 986
 987                 QToolButton::mousePressEvent(e);
 988         }
 989 };
 990
 991 }
 992
 993
 994 void GuiToolbar::add(ToolbarItem const & item)
 995 {
 996         switch (item.type_) {
 997         case ToolbarItem::SEPARATOR:
 998                 addSeparator();
 999                 break;
1000         case ToolbarItem::LAYOUTS:
1001                 layout_ = new GuiLayoutBox(owner_);
1002                 addWidget(layout_);
1003                 break;
1004         case ToolbarItem::MINIBUFFER:
1005                 command_buffer_ = new GuiCommandBuffer(&owner_);
1006                 addWidget(command_buffer_);
1007                 /// \todo find a Qt4 equivalent to setHorizontalStretchable(true);
1008                 //setHorizontalStretchable(true);
1009                 break;
1010         case ToolbarItem::TABLEINSERT: {
1011                 QToolButton * tb = new QToolButton;
1012                 tb->setCheckable(true);
1013                 tb->setIcon(getIcon(FuncRequest(LFUN_TABULAR_INSERT), true));
1014                 QString const label = qt_(to_ascii(item.label_));
1015                 tb->setToolTip(label);
1016                 tb->setStatusTip(label);
1017                 tb->setText(label);
1018                 InsertTableWidget * iv = new InsertTableWidget(owner_, tb);
1019                 connect(tb, SIGNAL(clicked(bool)), iv, SLOT(show(bool)));
1020                 connect(iv, SIGNAL(visible(bool)), tb, SLOT(setChecked(bool)));
1021                 connect(this, SIGNAL(updated()), iv, SLOT(updateParent()));
1022                 addWidget(tb);
1023                 break;
1024                 }
1025         case ToolbarItem::ICONPALETTE:
1026                 addWidget(new PaletteButton(this, item));
1027                 break;
1028
1029         case ToolbarItem::POPUPMENU: {
1030                 addWidget(new MenuButton(this, item));
1031                 break;
1032                 }
1033         case ToolbarItem::COMMAND: {
1034                 if (!getStatus(item.func_).unknown())
1035                         addAction(addItem(item));
1036                 break;
1037                 }
1038         default:
1039                 break;
1040         }
1041 }
1042
1043
1044 void GuiToolbar::saveInfo(ToolbarSection::ToolbarInfo & tbinfo)
1045 {
1046         // if tbinfo.state == auto *do not* set on/off
1047         if (tbinfo.state != ToolbarSection::ToolbarInfo::AUTO) {
1048                 if (GuiToolbar::isVisible())
1049                         tbinfo.state = ToolbarSection::ToolbarInfo::ON;
1050                 else
1051                         tbinfo.state = ToolbarSection::ToolbarInfo::OFF;
1052         }
1053         //
1054         // no need to save it here.
1055         Qt::ToolBarArea loc = owner_.toolBarArea(this);
1056
1057         if (loc == Qt::TopToolBarArea)
1058                 tbinfo.location = ToolbarSection::ToolbarInfo::TOP;
1059         else if (loc == Qt::BottomToolBarArea)
1060                 tbinfo.location = ToolbarSection::ToolbarInfo::BOTTOM;
1061         else if (loc == Qt::RightToolBarArea)
1062                 tbinfo.location = ToolbarSection::ToolbarInfo::RIGHT;
1063         else if (loc == Qt::LeftToolBarArea)
1064                 tbinfo.location = ToolbarSection::ToolbarInfo::LEFT;
1065         else
1066                 tbinfo.location = ToolbarSection::ToolbarInfo::NOTSET;
1067
1068         // save toolbar position. They are not used to restore toolbar position
1069         // now because move(x,y) does not work for toolbar.
1070         tbinfo.posx = pos().x();
1071         tbinfo.posy = pos().y();
1072 }
1073
1074
1075 void GuiToolbar::updateContents()
1076 {
1077         // update visible toolbars only
1078         if (!isVisible())
1079                 return;
1080         // This is a speed bottleneck because this is called on every keypress
1081         // and update calls getStatus, which copies the cursor at least two times
1082         for (int i = 0; i < actions_.size(); ++i)
1083                 actions_[i]->update();
1084
1085         if (layout_)
1086                 layout_->setEnabled(lyx::getStatus(FuncRequest(LFUN_LAYOUT)).enabled());
1087
1088         // emit signal
1089         updated();
1090 }
1091
1092
1093 } // namespace frontend
1094 } // namespace lyx
1095
1096 #include "GuiToolbar_moc.cpp"