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