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 <QPlastiqueStyle>
  58 #include <QSortFilterProxyModel>
  59 #include <QStandardItem>
  60 #include <QStandardItemModel>
  61 #include <QTextDocument>
  62 #include <QTextFrame>
  63 #include <QToolBar>
  64 #include <QToolButton>
  65 #include <QVariant>
  66
  67 #include <boost/assert.hpp>
  68
  69 #include <map>
  70 #include <vector>
  71
  72 using namespace std;
  73 using namespace lyx::support;
  74
  75 static void initializeResources()
  76 {
  77         static bool initialized = false;
  78         if (!initialized) {
  79                 Q_INIT_RESOURCE(Resources);
  80                 initialized = true;
  81         }
  82 }
  83
  84
  85 namespace lyx {
  86 namespace frontend {
  87
  88 namespace {
  89
  90 struct PngMap {
  91         QString key;
  92         QString value;
  93 };
  94
  95
  96 bool operator<(PngMap const & lhs, PngMap const & rhs)
  97 {
  98                 return lhs.key < rhs.key;
  99 }
 100
 101
 102 class CompareKey {
 103 public:
 104         CompareKey(QString const & name) : name_(name) {}
 105         bool operator()(PngMap const & other) const { return other.key == name_; }
 106 private:
 107         QString const name_;
 108 };
 109
 110
 111 PngMap sorted_png_map[] = {
 112         { "Bumpeq", "bumpeq2" },
 113         { "Cap", "cap2" },
 114         { "Cup", "cup2" },
 115         { "Delta", "delta2" },
 116         { "Downarrow", "downarrow2" },
 117         { "Gamma", "gamma2" },
 118         { "Lambda", "lambda2" },
 119         { "Leftarrow", "leftarrow2" },
 120         { "Leftrightarrow", "leftrightarrow2" },
 121         { "Longleftarrow", "longleftarrow2" },
 122         { "Longleftrightarrow", "longleftrightarrow2" },
 123         { "Longrightarrow", "longrightarrow2" },
 124         { "Omega", "omega2" },
 125         { "Phi", "phi2" },
 126         { "Pi", "pi2" },
 127         { "Psi", "psi2" },
 128         { "Rightarrow", "rightarrow2" },
 129         { "Sigma", "sigma2" },
 130         { "Subset", "subset2" },
 131         { "Supset", "supset2" },
 132         { "Theta", "theta2" },
 133         { "Uparrow", "uparrow2" },
 134         { "Updownarrow", "updownarrow2" },
 135         { "Upsilon", "upsilon2" },
 136         { "Vdash", "vdash3" },
 137         { "Xi", "xi2" },
 138         { "nLeftarrow", "nleftarrow2" },
 139         { "nLeftrightarrow", "nleftrightarrow2" },
 140         { "nRightarrow", "nrightarrow2" },
 141         { "nVDash", "nvdash3" },
 142         { "nvDash", "nvdash2" },
 143         { "textrm \\AA", "textrm_AA"},
 144         { "textrm \\O", "textrm_O"},
 145         { "vDash", "vdash2" }
 146 };
 147
 148 size_t const nr_sorted_png_map = sizeof(sorted_png_map) / sizeof(PngMap);
 149
 150
 151 QString findPng(QString const & name)
 152 {
 153         PngMap const * const begin = sorted_png_map;
 154         PngMap const * const end = begin + nr_sorted_png_map;
 155         BOOST_ASSERT(sorted(begin, end));
 156
 157         PngMap const * const it = find_if(begin, end, CompareKey(name));
 158
 159         QString png_name;
 160         if (it != end) {
 161                 png_name = it->value;
 162         } else {
 163                 png_name = name;
 164                 png_name.replace('_', "underscore");
 165                 png_name.replace(' ', '_');
 166
 167                 // This way we can have "math-delim { }" on the toolbar.
 168                 png_name.replace('(', "lparen");
 169                 png_name.replace(')', "rparen");
 170                 png_name.replace('[', "lbracket");
 171                 png_name.replace(']', "rbracket");
 172                 png_name.replace('{', "lbrace");
 173                 png_name.replace('}', "rbrace");
 174                 png_name.replace('|', "bars");
 175                 png_name.replace(',', "thinspace");
 176                 png_name.replace(':', "mediumspace");
 177                 png_name.replace(';', "thickspace");
 178                 png_name.replace('!', "negthinspace");
 179         }
 180
 181         LYXERR(Debug::GUI, "findPng(" << fromqstr(name) << ")\n"
 182                 << "Looking for math PNG called \"" << fromqstr(png_name) << '"');
 183         return png_name;
 184 }
 185
 186 } // namespace anon
 187
 188
 189 /// return a icon for the given action
 190 static QIcon getIcon(FuncRequest const & f, bool unknown)
 191 {
 192         initializeResources();
 193         QPixmap pm;
 194         QString name1;
 195         QString name2;
 196         QString path;
 197         switch (f.action) {
 198         case LFUN_MATH_INSERT:
 199                 if (!f.argument().empty()) {
 200                         path = "math/";
 201                         name1 = findPng(toqstr(f.argument()).mid(1));
 202                 }
 203                 break;
 204         case LFUN_MATH_DELIM:
 205         case LFUN_MATH_BIGDELIM:
 206                 path = "math/";
 207                 name1 = findPng(toqstr(f.argument()));
 208                 break;
 209         case LFUN_CALL:
 210                 path = "commands/";
 211                 name1 = toqstr(f.argument());
 212                 break;
 213         default:
 214                 name2 = toqstr(lyxaction.getActionName(f.action));
 215                 name1 = name2;
 216
 217                 if (!f.argument().empty()) {
 218                         name1 = name2 + ' ' + toqstr(f.argument());
 219                         name1.replace(' ', '_');
 220                 }
 221         }
 222
 223         string fullname = libFileSearch("images/" + path, name1, "png").absFilename();
 224         if (pm.load(toqstr(fullname)))
 225                 return pm;
 226
 227         fullname = libFileSearch("images/" + path, name2, "png").absFilename();
 228         if (pm.load(toqstr(fullname)))
 229                 return pm;
 230
 231         if (pm.load(":/images/" + path + name1 + ".png"))
 232                 return pm;
 233
 234         if (pm.load(":/images/" + path + name2 + ".png"))
 235                 return pm;
 236
 237         LYXERR(Debug::GUI, "Cannot find icon for command \""
 238                            << lyxaction.getActionName(f.action)
 239                            << '(' << to_utf8(f.argument()) << ")\"");
 240         if (unknown)
 241                 pm.load(":/images/unknown.png");
 242
 243         return pm;
 244 }
 245
 246
 247 /////////////////////////////////////////////////////////////////////
 248 //
 249 // GuiLayoutBox
 250 //
 251 /////////////////////////////////////////////////////////////////////
 252
 253 class LayoutItemDelegate : public QAbstractItemDelegate {
 254 public:
 255         ///
 256         explicit LayoutItemDelegate(QObject * parent = 0)
 257                 : QAbstractItemDelegate(parent)
 258         {}
 259
 260         ///
 261         void paint(QPainter * painter, QStyleOptionViewItem const & option,
 262                 QModelIndex const & index) const
 263         {
 264                 QComboBox * combo = static_cast<QComboBox *>(parent());
 265                 QSortFilterProxyModel const * model
 266                 = static_cast<QSortFilterProxyModel const *>(index.model());
 267                 QStyleOptionMenuItem opt = getStyleOption(option, index);
 268
 269                 painter->eraseRect(opt.rect);
 270
 271                 QString text = underlineFilter(opt.text);
 272                 opt.text = QString();
 273
 274                 // category header?
 275                 if (lyxrc.group_layouts) {
 276                         QString stdCat = category(*model->sourceModel(), 0);
 277                         QString cat = category(*index.model(), index.row());
 278
 279                         // not the standard layout and not the same as in the previous line?
 280                         if (stdCat != cat
 281                             && (index.row() == 0 || cat != category(*index.model(), index.row() - 1))) {
 282                                 // draw category header
 283                                 paintBackground(painter, opt);
 284                                 paintCategoryHeader(painter, opt,
 285                                         category(*index.model(), index.row()));
 286
 287                                 // move rect down below header
 288                                 opt.rect.moveTop(opt.rect.top() + headerHeight(opt));
 289                                 opt.menuRect = opt.rect;
 290                         }
 291                 }
 292
 293                 // Draw using the menu item style (this is how QComboBox does it).
 294                 // But for the rich text drawing below we will call it with an
 295                 // empty string, and later then draw over it the real string.
 296                 painter->save();
 297                 combo->style()->drawControl(QStyle::CE_MenuItem, &opt, painter, combo->view());
 298                 painter->restore();
 299
 300                 // Draw the rich text.
 301                 painter->save();
 302                 QColor col = opt.palette.text().color();
 303                 if (opt.state & QStyle::State_Selected)
 304                         col = opt.palette.highlightedText().color();
 305                 QAbstractTextDocumentLayout::PaintContext context;
 306                 context.palette.setColor(QPalette::Text, col);
 307
 308                 QTextDocument doc;
 309                 doc.setDefaultFont(opt.font);
 310                 doc.setHtml(text);
 311
 312                 QTextFrameFormat fmt = doc.rootFrame()->frameFormat();
 313                 fmt.setMargin(0);
 314                 doc.rootFrame()->setFrameFormat(fmt);
 315
 316                 painter->translate(opt.rect.x() + 5,
 317                         opt.rect.y() + (opt.rect.height() - opt.fontMetrics.height()) / 2);
 318                 doc.documentLayout()->draw(painter, context);
 319                 painter->restore();
 320         }
 321
 322         ///
 323         QSize sizeHint(QStyleOptionViewItem const & option,
 324                 QModelIndex const & index) const
 325         {
 326                 GuiLayoutBox * combo = static_cast<GuiLayoutBox *>(parent());
 327                 QSortFilterProxyModel const * model
 328                 = static_cast<QSortFilterProxyModel const *>(index.model());
 329
 330                 // we use a compressed menu style here
 331                 QStyleOptionMenuItem opt = getStyleOption(option, index);
 332                 QSize size = combo->style()->sizeFromContents(
 333                          QStyle::CT_MenuItem, &opt, opt.rect.size(), combo);
 334                 size.setHeight(opt.rect.height());
 335
 336                 /// QComboBox uses the first row height to estimate the
 337                 /// complete popup height during QComboBox::showPopup().
 338                 /// To avoid scrolling we have to sneak in space for the headers.
 339                 /// So we tweak this value accordingly. It's not nice, but the
 340                 /// only possible way it seems.
 341                 if (lyxrc.group_layouts && index.row() == 0 && combo->inShowPopup_) {
 342                         int itemHeight = size.height();
 343
 344                         // we have to show \c cats many headers:
 345                         unsigned cats = combo->visibleCategories_;
 346
 347                         // and we have \c n items to distribute the needed space over
 348                         unsigned n = combo->model()->rowCount();
 349
 350                         // so the needed average height (rounded upwards) is:
 351                         size.setHeight((headerHeight(opt) * cats + itemHeight * n + n - 1) / n);
 352                         return size;
 353                 }
 354
 355                 // Add space for the category headers here?
 356                 // Not for the standard layout though.
 357                 QString stdCat = category(*model->sourceModel(), 0);
 358                 QString cat = category(*index.model(), index.row());
 359                 if (lyxrc.group_layouts && stdCat != cat
 360                     && (index.row() == 0 || cat != category(*index.model(), index.row() - 1))) {
 361                         size.setHeight(size.height() + headerHeight(opt));
 362                 }
 363
 364                 return size;
 365         }
 366
 367 private:
 368         ///
 369         QString category(QAbstractItemModel const & model, int row) const
 370         {
 371                 return model.data(model.index(row, 2), Qt::DisplayRole).toString();
 372         }
 373
 374         ///
 375         void paintBackground(QPainter * painter, QStyleOptionMenuItem const & opt) const
 376         {
 377                 QComboBox * combo = static_cast<QComboBox *>(parent());
 378
 379                 // we only want to paint a background using the style, so
 380                 // disable every thing else
 381                 QStyleOptionMenuItem sopt = opt;
 382                 sopt.menuRect = sopt.rect;
 383                 sopt.state = QStyle::State_Active | QStyle::State_Enabled;
 384                 sopt.checked = false;
 385                 sopt.text = QString();
 386
 387                 painter->save();
 388                 combo->style()->drawControl(QStyle::CE_MenuItem, &sopt,
 389                         painter, combo->view());
 390                 painter->restore();
 391         }
 392
 393         ///
 394         int headerHeight(QStyleOptionMenuItem const & opt) const
 395         {
 396                 return opt.fontMetrics.height() * 8 / 10;
 397         }
 398         ///
 399         void paintCategoryHeader(QPainter * painter, QStyleOptionMenuItem const & opt,
 400                 QString const & category) const
 401         {
 402                 painter->save();
 403
 404                 // slightly blended color
 405                 QColor lcol = opt.palette.text().color();
 406                 lcol.setAlpha(127);
 407                 painter->setPen(lcol);
 408
 409                 // set 80% scaled, bold font
 410                 QFont font = opt.font;
 411                 font.setBold(true);
 412                 font.setWeight(QFont::Black);
 413                 font.setPointSize(opt.font.pointSize() * 8 / 10);
 414                 painter->setFont(font);
 415
 416                 // draw the centered text
 417                 QFontMetrics fm(font);
 418                 int w = fm.width(category);
 419                 int x = opt.rect.x() + (opt.rect.width() - w) / 2;
 420                 int y = opt.rect.y() + fm.ascent();
 421                 int left = x;
 422                 int right = x + w;
 423                 painter->drawText(x, y, category);
 424
 425                 // the vertical position of the line: middle of lower case chars
 426                 int ymid = y - 1 - fm.xHeight() / 2; // -1 for the baseline
 427
 428                 // draw the horizontal line
 429                 if (!category.isEmpty()) {
 430                         painter->drawLine(opt.rect.x(), ymid, left - 1, ymid);
 431                         painter->drawLine(right + 1, ymid, opt.rect.right(), ymid);
 432                 } else
 433                         painter->drawLine(opt.rect.x(), ymid, opt.rect.right(), ymid);
 434
 435                 painter->restore();
 436         }
 437
 438
 439         ///
 440         QString underlineFilter(QString const & s) const
 441         {
 442                 // get filter
 443                 GuiLayoutBox * p = static_cast<GuiLayoutBox *>(parent());
 444                 QString const & f = p->filter();
 445                 if (f.isEmpty())
 446                         return s;
 447
 448                 // step through data item and put "(x)" for every matching character
 449                 QString r;
 450                 int lastp = -1;
 451                 p->filter();
 452                 for (int i = 0; i < f.length(); ++i) {
 453                         int p = s.indexOf(f[i], lastp + 1, Qt::CaseInsensitive);
 454                         BOOST_ASSERT(p != -1);
 455                         if (lastp == p - 1 && lastp != -1) {
 456                                 // remove ")" and append "x)"
 457                                 r = r.left(r.length() - 4) + s[p] + "</u>";
 458                         } else {
 459                                 // append "(x)"
 460                                 r += s.mid(lastp + 1, p - lastp - 1);
 461                                 r += QString("<u>") + s[p] + "</u>";
 462                         }
 463                         lastp = p;
 464                 }
 465                 r += s.mid(lastp + 1);
 466                 return r;
 467         }
 468
 469         ///
 470         QStyleOptionMenuItem getStyleOption(QStyleOptionViewItem const & option,
 471                 QModelIndex const & index) const
 472         {
 473                 QComboBox * combo = static_cast<QComboBox *>(parent());
 474
 475                 // create the options for a menu item
 476                 QStyleOptionMenuItem menuOption;
 477                 menuOption.palette = QApplication::palette("QMenu");
 478                 menuOption.state = QStyle::State_Active | QStyle::State_Enabled;
 479                 menuOption.font = combo->font();
 480                 menuOption.fontMetrics = QFontMetrics(menuOption.font);
 481                 menuOption.rect = option.rect;
 482                 menuOption.rect.setHeight(menuOption.fontMetrics.height());
 483                 menuOption.menuRect = menuOption.rect;
 484                 menuOption.tabWidth = 0;
 485                 menuOption.text = index.model()->data(index, Qt::DisplayRole).toString()
 486                         .replace(QLatin1Char('&'), QLatin1String("&&"));
 487                 menuOption.menuItemType = QStyleOptionMenuItem::Normal;
 488                 if (option.state & QStyle::State_Selected)
 489                         menuOption.state |= QStyle::State_Selected;
 490                 menuOption.checkType = QStyleOptionMenuItem::NotCheckable;
 491                 menuOption.checked = false;
 492                 return menuOption;
 493         }
 494 };
 495
 496
 497 class GuiLayoutFilterModel : public QSortFilterProxyModel {
 498 public:
 499         ///
 500         GuiLayoutFilterModel(QObject * parent = 0)
 501                 : QSortFilterProxyModel(parent)
 502         {}
 503
 504         ///
 505         void triggerLayoutChange()
 506         {
 507                 layoutAboutToBeChanged();
 508                 layoutChanged();
 509         }
 510 };
 511
 512
 513 GuiLayoutBox::GuiLayoutBox(GuiView & owner)
 514         : owner_(owner), lastSel_(-1), layoutItemDelegate_(new LayoutItemDelegate(this)),
 515           visibleCategories_(0), inShowPopup_(false)
 516 {
 517         setSizeAdjustPolicy(QComboBox::AdjustToContents);
 518         setFocusPolicy(Qt::ClickFocus);
 519         setMinimumWidth(sizeHint().width());
 520         setMaxVisibleItems(100);
 521
 522         // set the layout model with two columns
 523         // 1st: translated layout names
 524         // 2nd: raw layout names
 525         model_ = new QStandardItemModel(0, 2, this);
 526         filterModel_ = new GuiLayoutFilterModel(this);
 527         filterModel_->setSourceModel(model_);
 528         setModel(filterModel_);
 529
 530         // for the filtering we have to intercept characters
 531         view()->installEventFilter(this);
 532         view()->setItemDelegateForColumn(0, layoutItemDelegate_);
 533
 534         QObject::connect(this, SIGNAL(activated(int)),
 535                          this, SLOT(selected(int)));
 536         owner_.setLayoutDialog(this);
 537         updateContents(true);
 538 }
 539
 540
 541 void GuiLayoutBox::setFilter(QString const & s)
 542 {
 543         if (!s.isEmpty())
 544                 owner_.message(_("Filtering layouts with \"" + fromqstr(s) + "\". "
 545                         "Press ESC to remove filter."));
 546         else
 547                 owner_.message(_("Enter characters to filter the layout list."));
 548
 549         bool enabled = view()->updatesEnabled();
 550         view()->setUpdatesEnabled(false);
 551
 552         // remember old selection
 553         int sel = currentIndex();
 554         if (sel != -1)
 555                 lastSel_ = filterModel_->mapToSource(filterModel_->index(sel, 0)).row();
 556
 557         filter_ = s;
 558         filterModel_->setFilterRegExp(charFilterRegExp(filter_));
 559         countCategories();
 560
 561         // restore old selection
 562         if (lastSel_ != -1) {
 563                 QModelIndex i = filterModel_->mapFromSource(model_->index(lastSel_, 0));
 564                 if (i.isValid())
 565                         setCurrentIndex(i.row());
 566         }
 567
 568         // Workaround to resize to content size
 569         // FIXME: There must be a better way. The QComboBox::AdjustToContents)
 570         //        does not help.
 571         if (view()->isVisible()) {
 572                 // call QComboBox::showPopup. But set the inShowPopup_ flag to switch on
 573                 // the hack in the item delegate to make space for the headers.
 574                 // We do not call our implementation of showPopup because that
 575                 // would reset the filter again. This is only needed if the user clicks
 576                 // on the QComboBox.
 577                 BOOST_ASSERT(!inShowPopup_);
 578                 inShowPopup_ = true;
 579                 QComboBox::showPopup();
 580                 inShowPopup_ = false;
 581
 582                 // The item delegate hack is off again. So trigger a relayout of the popup.
 583                 filterModel_->triggerLayoutChange();
 584         }
 585
 586         view()->setUpdatesEnabled(enabled);
 587 }
 588
 589
 590 void GuiLayoutBox::countCategories()
 591 {
 592         int n = filterModel_->rowCount();
 593         visibleCategories_ = 0;
 594         if (n == 0 || !lyxrc.group_layouts)
 595                 return;
 596
 597         // skip the "Standard" category
 598         QString prevCat = model_->index(0, 2).data().toString();
 599
 600         // count categories
 601         for (int i = 0; i < n; ++i) {
 602                 QString cat = filterModel_->index(i, 2).data().toString();
 603                 if (cat != prevCat)
 604                         ++visibleCategories_;
 605                 prevCat = cat;
 606         }
 607 }
 608
 609
 610 QString GuiLayoutBox::charFilterRegExp(QString const & filter)
 611 {
 612         QString re;
 613         for (int i = 0; i < filter.length(); ++i) {
 614                 QChar c = filter[i];
 615                 if (c.isLower())
 616                         re += ".*[" + QRegExp::escape(c) + QRegExp::escape(c.toUpper()) + "]";
 617                 else
 618                         re += ".*" + QRegExp::escape(c);
 619         }
 620         return re;
 621 }
 622
 623
 624 void GuiLayoutBox::resetFilter()
 625 {
 626         setFilter(QString());
 627 }
 628
 629
 630 void GuiLayoutBox::showPopup()
 631 {
 632         owner_.message(_("Enter characters to filter the layout list."));
 633
 634         bool enabled = view()->updatesEnabled();
 635         view()->setUpdatesEnabled(false);
 636
 637         resetFilter();
 638
 639         // call QComboBox::showPopup. But set the inShowPopup_ flag to switch on
 640         // the hack in the item delegate to make space for the headers.
 641         BOOST_ASSERT(!inShowPopup_);
 642         inShowPopup_ = true;
 643         QComboBox::showPopup();
 644         inShowPopup_ = false;
 645
 646         // The item delegate hack is off again. So trigger a relayout of the popup.
 647         filterModel_->triggerLayoutChange();
 648
 649         view()->setUpdatesEnabled(enabled);
 650 }
 651
 652
 653 bool GuiLayoutBox::eventFilter(QObject * o, QEvent * e)
 654 {
 655         if (e->type() != QEvent::KeyPress)
 656                 return QComboBox::eventFilter(o, e);
 657
 658         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 659         bool modified = (ke->modifiers() == Qt::ControlModifier)
 660                 || (ke->modifiers() == Qt::AltModifier)
 661                 || (ke->modifiers() == Qt::MetaModifier);
 662
 663         switch (ke->key()) {
 664         case Qt::Key_Escape:
 665                 if (!modified && !filter_.isEmpty()) {
 666                         resetFilter();
 667                         return true;
 668                 }
 669                 break;
 670         case Qt::Key_Backspace:
 671                 if (!modified) {
 672                         // cut off one character
 673                         setFilter(filter_.left(filter_.length() - 1));
 674                 }
 675                 break;
 676         default:
 677                 if (modified || ke->text().isEmpty())
 678                         break;
 679                 // find chars for the filter string
 680                 QString s;
 681                 for (int i = 0; i < ke->text().length(); ++i) {
 682                         QChar c = ke->text()[i];
 683                         if (c.isLetterOrNumber()
 684                             || c.isSymbol()
 685                             || c.isPunct()
 686                             || c.category() == QChar::Separator_Space) {
 687                                 s += c;
 688                         }
 689                 }
 690                 if (!s.isEmpty()) {
 691                         // append new chars to the filter string
 692                         setFilter(filter_ + s);
 693                         return true;
 694                 }
 695                 break;
 696         }
 697
 698         return QComboBox::eventFilter(o, e);
 699 }
 700
 701
 702 void GuiLayoutBox::set(docstring const & layout)
 703 {
 704         resetFilter();
 705
 706         if (!text_class_)
 707                 return;
 708
 709         QString const & name = toqstr((*text_class_)[layout].name());
 710         if (name == currentText())
 711                 return;
 712
 713         QList<QStandardItem *> r = model_->findItems(name, Qt::MatchExactly, 1);
 714         if (r.empty()) {
 715                 lyxerr << "Trying to select non existent layout type "
 716                         << fromqstr(name) << endl;
 717                 return;
 718         }
 719
 720         setCurrentIndex(filterModel_->mapFromSource(r.first()->index()).row());
 721 }
 722
 723
 724 void GuiLayoutBox::addItemSort(docstring const & item, docstring const & category,
 725         bool sorted, bool sortedByCat)
 726 {
 727         QString qitem = toqstr(item);
 728         QString titem = toqstr(translateIfPossible(item));
 729         QString qcat = toqstr(translateIfPossible(category));
 730
 731         QList<QStandardItem *> row;
 732         row.append(new QStandardItem(titem));
 733         row.append(new QStandardItem(qitem));
 734         row.append(new QStandardItem(qcat));
 735
 736         // the first entry is easy
 737         int const end = model_->rowCount();
 738         if (end == 0) {
 739                 model_->appendRow(row);
 740                 return;
 741         }
 742
 743         // find category
 744         int i = 0;
 745         if (sortedByCat) {
 746                 while (i < end && model_->item(i, 2)->text() != qcat)
 747                         ++i;
 748         }
 749
 750         // skip the Standard layout
 751         if (i == 0)
 752                 ++i;
 753
 754         // the simple unsorted case
 755         if (!sorted) {
 756                 if (sortedByCat) {
 757                         // jump to the end of the category group
 758                         while (i < end && model_->item(i, 2)->text() == qcat)
 759                                 ++i;
 760                         model_->insertRow(i, row);
 761                 } else
 762                         model_->appendRow(row);
 763                 return;
 764         }
 765
 766         // find row to insert the item, after the separator if it exists
 767         if (i < end) {
 768                 // find alphabetic position
 769                 while (i != end
 770                        && model_->item(i, 0)->text().compare(titem) < 0
 771                        && (!sortedByCat || model_->item(i, 2)->text() == qcat))
 772                         ++i;
 773         }
 774
 775         model_->insertRow(i, row);
 776 }
 777
 778
 779 void GuiLayoutBox::updateContents(bool reset)
 780 {
 781         resetFilter();
 782
 783         Buffer const * buffer = owner_.buffer();
 784         if (!buffer) {
 785                 model_->clear();
 786                 setEnabled(false);
 787                 text_class_ = 0;
 788                 inset_ = 0;
 789                 return;
 790         }
 791
 792         // we'll only update the layout list if the text class has changed
 793         // or we've moved from one inset to another
 794         DocumentClass const * text_class = &buffer->params().documentClass();
 795         Inset const * inset =
 796         owner_.view()->cursor().innerParagraph().inInset();
 797         if (!reset && text_class_ == text_class && inset_ == inset) {
 798                 set(owner_.view()->cursor().innerParagraph().layout().name());
 799                 return;
 800         }
 801
 802         inset_ = inset;
 803         text_class_ = text_class;
 804
 805         model_->clear();
 806         DocumentClass::const_iterator lit = text_class_->begin();
 807         DocumentClass::const_iterator len = text_class_->end();
 808         for (; lit != len; ++lit) {
 809                 docstring const & name = lit->name();
 810                 // if this inset requires the empty layout, we skip the default
 811                 // layout
 812                 if (name == text_class_->defaultLayoutName() && inset &&
 813                     (inset->forceEmptyLayout() || inset->useEmptyLayout()))
 814                         continue;
 815                 // if it doesn't require the empty layout, we skip it
 816                 if (name == text_class_->emptyLayoutName() && inset &&
 817                     !inset->forceEmptyLayout() && !inset->useEmptyLayout())
 818                         continue;
 819                 addItemSort(name, lit->category(), lyxrc.sort_layouts, lyxrc.group_layouts);
 820         }
 821
 822         set(owner_.view()->cursor().innerParagraph().layout().name());
 823         countCategories();
 824
 825         // needed to recalculate size hint
 826         hide();
 827         setMinimumWidth(sizeHint().width());
 828         setEnabled(!buffer->isReadonly());
 829         show();
 830 }
 831
 832
 833 void GuiLayoutBox::selected(int index)
 834 {
 835         // get selection
 836         QModelIndex mindex = filterModel_->mapToSource(filterModel_->index(index, 1));
 837         docstring const layoutName =
 838                 qstring_to_ucs4(model_->itemFromIndex(mindex)->text());
 839
 840         owner_.setFocus();
 841
 842         if (!text_class_) {
 843                 updateContents(false);
 844                 resetFilter();
 845                 return;
 846         }
 847
 848         // find corresponding text class
 849         if (text_class_->hasLayout(layoutName)) {
 850                 FuncRequest const func(LFUN_LAYOUT, layoutName, FuncRequest::TOOLBAR);
 851                 theLyXFunc().setLyXView(&owner_);
 852                 lyx::dispatch(func);
 853                 updateContents(false);
 854                 resetFilter();
 855                 return;
 856         }
 857         lyxerr << "ERROR (layoutSelected): layout not found!" << endl;
 858 }
 859
 860
 861
 862 /////////////////////////////////////////////////////////////////////
 863 //
 864 // GuiToolbar
 865 //
 866 /////////////////////////////////////////////////////////////////////
 867
 868
 869 GuiToolbar::GuiToolbar(ToolbarInfo const & tbinfo, GuiView & owner)
 870         : QToolBar(qt_(tbinfo.gui_name), &owner), owner_(owner),
 871           layout_(0), command_buffer_(0)
 872 {
 873         // give visual separation between adjacent toolbars
 874         addSeparator();
 875
 876         // TODO: save toolbar position
 877         setMovable(true);
 878
 879         ToolbarInfo::item_iterator it = tbinfo.items.begin();
 880         ToolbarInfo::item_iterator end = tbinfo.items.end();
 881         for (; it != end; ++it)
 882                 add(*it);
 883 }
 884
 885
 886 Action * GuiToolbar::addItem(ToolbarItem const & item)
 887 {
 888         Action * act = new Action(owner_,
 889                 getIcon(item.func_, false),
 890           toqstr(item.label_), item.func_, toqstr(item.label_));
 891         actions_.append(act);
 892         return act;
 893 }
 894
 895 namespace {
 896
 897 class PaletteButton : public QToolButton
 898 {
 899 private:
 900         GuiToolbar * bar_;
 901         ToolbarItem const & tbitem_;
 902         bool initialized_;
 903 public:
 904         PaletteButton(GuiToolbar * bar, ToolbarItem const & item)
 905                 : QToolButton(bar), bar_(bar), tbitem_(item), initialized_(false)
 906         {
 907                 QString const label = qt_(to_ascii(tbitem_.label_));
 908                 setToolTip(label);
 909                 setStatusTip(label);
 910                 setText(label);
 911                 connect(bar_, SIGNAL(iconSizeChanged(QSize)),
 912                         this, SLOT(setIconSize(QSize)));
 913                 setCheckable(true);
 914                 ToolbarInfo const * tbinfo =
 915                         toolbarbackend.getDefinedToolbarInfo(tbitem_.name_);
 916                 if (tbinfo)
 917                         // use the icon of first action for the toolbar button
 918                         setIcon(getIcon(tbinfo->items.begin()->func_, true));
 919         }
 920
 921         void mousePressEvent(QMouseEvent * e)
 922         {
 923                 if (initialized_) {
 924                         QToolButton::mousePressEvent(e);
 925                         return;
 926                 }
 927
 928                 initialized_ = true;
 929
 930                 ToolbarInfo const * tbinfo =
 931                         toolbarbackend.getDefinedToolbarInfo(tbitem_.name_);
 932                 if (!tbinfo) {
 933                         lyxerr << "Unknown toolbar " << tbitem_.name_ << endl;
 934                         return;
 935                 }
 936                 IconPalette * panel = new IconPalette(this);
 937                 QString const label = qt_(to_ascii(tbitem_.label_));
 938                 panel->setWindowTitle(label);
 939                 connect(this, SIGNAL(clicked(bool)), panel, SLOT(setVisible(bool)));
 940                 connect(panel, SIGNAL(visible(bool)), this, SLOT(setChecked(bool)));
 941                 ToolbarInfo::item_iterator it = tbinfo->items.begin();
 942                 ToolbarInfo::item_iterator const end = tbinfo->items.end();
 943                 for (; it != end; ++it)
 944                         if (!getStatus(it->func_).unknown())
 945                                 panel->addButton(bar_->addItem(*it));
 946
 947                 QToolButton::mousePressEvent(e);
 948         }
 949 };
 950
 951 class MenuButton : public QToolButton
 952 {
 953 private:
 954         GuiToolbar * bar_;
 955         ToolbarItem const & tbitem_;
 956         bool initialized_;
 957 public:
 958         MenuButton(GuiToolbar * bar, ToolbarItem const & item)
 959                 : QToolButton(bar), bar_(bar), tbitem_(item), initialized_(false)
 960         {
 961                 setPopupMode(QToolButton::InstantPopup);
 962                 QString const label = qt_(to_ascii(tbitem_.label_));
 963                 setToolTip(label);
 964                 setStatusTip(label);
 965                 setText(label);
 966                 setIcon(QPixmap(":images/math/" + toqstr(tbitem_.name_) + ".png"));
 967                 connect(bar, SIGNAL(iconSizeChanged(QSize)),
 968                         this, SLOT(setIconSize(QSize)));
 969         }
 970
 971         void mousePressEvent(QMouseEvent * e)
 972         {
 973                 if (initialized_) {
 974                         QToolButton::mousePressEvent(e);
 975                         return;
 976                 }
 977
 978                 initialized_ = true;
 979
 980                 QString const label = qt_(to_ascii(tbitem_.label_));
 981                 ButtonMenu * m = new ButtonMenu(label, this);
 982                 m->setWindowTitle(label);
 983                 m->setTearOffEnabled(true);
 984                 connect(bar_, SIGNAL(updated()), m, SLOT(updateParent()));
 985                 ToolbarInfo const * tbinfo =
 986                         toolbarbackend.getDefinedToolbarInfo(tbitem_.name_);
 987                 if (!tbinfo) {
 988                         lyxerr << "Unknown toolbar " << tbitem_.name_ << endl;
 989                         return;
 990                 }
 991                 ToolbarInfo::item_iterator it = tbinfo->items.begin();
 992                 ToolbarInfo::item_iterator const end = tbinfo->items.end();
 993                 for (; it != end; ++it)
 994                         if (!getStatus(it->func_).unknown())
 995                                 m->add(bar_->addItem(*it));
 996                 setMenu(m);
 997
 998                 QToolButton::mousePressEvent(e);
 999         }
1000 };
1001
1002 }
1003
1004
1005 void GuiToolbar::add(ToolbarItem const & item)
1006 {
1007         switch (item.type_) {
1008         case ToolbarItem::SEPARATOR:
1009                 addSeparator();
1010                 break;
1011         case ToolbarItem::LAYOUTS:
1012                 layout_ = new GuiLayoutBox(owner_);
1013                 addWidget(layout_);
1014                 break;
1015         case ToolbarItem::MINIBUFFER:
1016                 command_buffer_ = new GuiCommandBuffer(&owner_);
1017                 addWidget(command_buffer_);
1018                 /// \todo find a Qt4 equivalent to setHorizontalStretchable(true);
1019                 //setHorizontalStretchable(true);
1020                 break;
1021         case ToolbarItem::TABLEINSERT: {
1022                 QToolButton * tb = new QToolButton;
1023                 tb->setCheckable(true);
1024                 tb->setIcon(getIcon(FuncRequest(LFUN_TABULAR_INSERT), true));
1025                 QString const label = qt_(to_ascii(item.label_));
1026                 tb->setToolTip(label);
1027                 tb->setStatusTip(label);
1028                 tb->setText(label);
1029                 InsertTableWidget * iv = new InsertTableWidget(owner_, tb);
1030                 connect(tb, SIGNAL(clicked(bool)), iv, SLOT(show(bool)));
1031                 connect(iv, SIGNAL(visible(bool)), tb, SLOT(setChecked(bool)));
1032                 connect(this, SIGNAL(updated()), iv, SLOT(updateParent()));
1033                 addWidget(tb);
1034                 break;
1035                 }
1036         case ToolbarItem::ICONPALETTE:
1037                 addWidget(new PaletteButton(this, item));
1038                 break;
1039
1040         case ToolbarItem::POPUPMENU: {
1041                 addWidget(new MenuButton(this, item));
1042                 break;
1043                 }
1044         case ToolbarItem::COMMAND: {
1045                 if (!getStatus(item.func_).unknown())
1046                         addAction(addItem(item));
1047                 break;
1048                 }
1049         default:
1050                 break;
1051         }
1052 }
1053
1054
1055 void GuiToolbar::saveInfo(ToolbarSection::ToolbarInfo & tbinfo)
1056 {
1057         // if tbinfo.state == auto *do not* set on/off
1058         if (tbinfo.state != ToolbarSection::ToolbarInfo::AUTO) {
1059                 if (GuiToolbar::isVisible())
1060                         tbinfo.state = ToolbarSection::ToolbarInfo::ON;
1061                 else
1062                         tbinfo.state = ToolbarSection::ToolbarInfo::OFF;
1063         }
1064         //
1065         // no need to save it here.
1066         Qt::ToolBarArea loc = owner_.toolBarArea(this);
1067
1068         if (loc == Qt::TopToolBarArea)
1069                 tbinfo.location = ToolbarSection::ToolbarInfo::TOP;
1070         else if (loc == Qt::BottomToolBarArea)
1071                 tbinfo.location = ToolbarSection::ToolbarInfo::BOTTOM;
1072         else if (loc == Qt::RightToolBarArea)
1073                 tbinfo.location = ToolbarSection::ToolbarInfo::RIGHT;
1074         else if (loc == Qt::LeftToolBarArea)
1075                 tbinfo.location = ToolbarSection::ToolbarInfo::LEFT;
1076         else
1077                 tbinfo.location = ToolbarSection::ToolbarInfo::NOTSET;
1078
1079         // save toolbar position. They are not used to restore toolbar position
1080         // now because move(x,y) does not work for toolbar.
1081         tbinfo.posx = pos().x();
1082         tbinfo.posy = pos().y();
1083 }
1084
1085
1086 void GuiToolbar::updateContents()
1087 {
1088         // update visible toolbars only
1089         if (!isVisible())
1090                 return;
1091         // This is a speed bottleneck because this is called on every keypress
1092         // and update calls getStatus, which copies the cursor at least two times
1093         for (int i = 0; i < actions_.size(); ++i)
1094                 actions_[i]->update();
1095
1096         if (layout_)
1097                 layout_->setEnabled(lyx::getStatus(FuncRequest(LFUN_LAYOUT)).enabled());
1098
1099         // emit signal
1100         updated();
1101 }
1102
1103
1104 } // namespace frontend
1105 } // namespace lyx
1106
1107 #include "GuiToolbar_moc.cpp"