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 <QClearLook>
  50 #include <QComboBox>
  51 #include <QFontMetrics>
  52 #include <QHeaderView>
  53 #include <QKeyEvent>
  54 #include <QList>
  55 #include <QListView>
  56 #include <QPainter>
  57 #include <QPixmap>
  58 #include <QPlastiqueStyle>
  59 #include <QSortFilterProxyModel>
  60 #include <QStandardItem>
  61 #include <QStandardItemModel>
  62 #include <QTextDocument>
  63 #include <QTextFrame>
  64 #include <QToolBar>
  65 #include <QToolButton>
  66 #include <QVariant>
  67
  68 #include <boost/assert.hpp>
  69
  70 #include <map>
  71 #include <vector>
  72
  73 using namespace std;
  74 using namespace lyx::support;
  75
  76 static void initializeResources()
  77 {
  78         static bool initialized = false;
  79         if (!initialized) {
  80                 Q_INIT_RESOURCE(Resources);
  81                 initialized = true;
  82         }
  83 }
  84
  85
  86 namespace lyx {
  87 namespace frontend {
  88
  89 namespace {
  90
  91 struct PngMap {
  92         QString key;
  93         QString value;
  94 };
  95
  96
  97 bool operator<(PngMap const & lhs, PngMap const & rhs)
  98 {
  99                 return lhs.key < rhs.key;
 100 }
 101
 102
 103 class CompareKey {
 104 public:
 105         CompareKey(QString const & name) : name_(name) {}
 106         bool operator()(PngMap const & other) const { return other.key == name_; }
 107 private:
 108         QString const name_;
 109 };
 110
 111
 112 PngMap sorted_png_map[] = {
 113         { "Bumpeq", "bumpeq2" },
 114         { "Cap", "cap2" },
 115         { "Cup", "cup2" },
 116         { "Delta", "delta2" },
 117         { "Downarrow", "downarrow2" },
 118         { "Gamma", "gamma2" },
 119         { "Lambda", "lambda2" },
 120         { "Leftarrow", "leftarrow2" },
 121         { "Leftrightarrow", "leftrightarrow2" },
 122         { "Longleftarrow", "longleftarrow2" },
 123         { "Longleftrightarrow", "longleftrightarrow2" },
 124         { "Longrightarrow", "longrightarrow2" },
 125         { "Omega", "omega2" },
 126         { "Phi", "phi2" },
 127         { "Pi", "pi2" },
 128         { "Psi", "psi2" },
 129         { "Rightarrow", "rightarrow2" },
 130         { "Sigma", "sigma2" },
 131         { "Subset", "subset2" },
 132         { "Supset", "supset2" },
 133         { "Theta", "theta2" },
 134         { "Uparrow", "uparrow2" },
 135         { "Updownarrow", "updownarrow2" },
 136         { "Upsilon", "upsilon2" },
 137         { "Vdash", "vdash3" },
 138         { "Xi", "xi2" },
 139         { "nLeftarrow", "nleftarrow2" },
 140         { "nLeftrightarrow", "nleftrightarrow2" },
 141         { "nRightarrow", "nrightarrow2" },
 142         { "nVDash", "nvdash3" },
 143         { "nvDash", "nvdash2" },
 144         { "textrm \\AA", "textrm_AA"},
 145         { "textrm \\O", "textrm_O"},
 146         { "vDash", "vdash2" }
 147 };
 148
 149 size_t const nr_sorted_png_map = sizeof(sorted_png_map) / sizeof(PngMap);
 150
 151
 152 QString findPng(QString const & name)
 153 {
 154         PngMap const * const begin = sorted_png_map;
 155         PngMap const * const end = begin + nr_sorted_png_map;
 156         BOOST_ASSERT(sorted(begin, end));
 157
 158         PngMap const * const it = find_if(begin, end, CompareKey(name));
 159
 160         QString png_name;
 161         if (it != end) {
 162                 png_name = it->value;
 163         } else {
 164                 png_name = name;
 165                 png_name.replace('_', "underscore");
 166                 png_name.replace(' ', '_');
 167
 168                 // This way we can have "math-delim { }" on the toolbar.
 169                 png_name.replace('(', "lparen");
 170                 png_name.replace(')', "rparen");
 171                 png_name.replace('[', "lbracket");
 172                 png_name.replace(']', "rbracket");
 173                 png_name.replace('{', "lbrace");
 174                 png_name.replace('}', "rbrace");
 175                 png_name.replace('|', "bars");
 176                 png_name.replace(',', "thinspace");
 177                 png_name.replace(':', "mediumspace");
 178                 png_name.replace(';', "thickspace");
 179                 png_name.replace('!', "negthinspace");
 180         }
 181
 182         LYXERR(Debug::GUI, "findPng(" << fromqstr(name) << ")\n"
 183                 << "Looking for math PNG called \"" << fromqstr(png_name) << '"');
 184         return png_name;
 185 }
 186
 187 } // namespace anon
 188
 189
 190 /// return a icon for the given action
 191 static QIcon getIcon(FuncRequest const & f, bool unknown)
 192 {
 193         initializeResources();
 194         QPixmap pm;
 195         QString name1;
 196         QString name2;
 197         QString path;
 198         switch (f.action) {
 199         case LFUN_MATH_INSERT:
 200                 if (!f.argument().empty()) {
 201                         path = "math/";
 202                         name1 = findPng(toqstr(f.argument()).mid(1));
 203                 }
 204                 break;
 205         case LFUN_MATH_DELIM:
 206         case LFUN_MATH_BIGDELIM:
 207                 path = "math/";
 208                 name1 = findPng(toqstr(f.argument()));
 209                 break;
 210         case LFUN_CALL:
 211                 path = "commands/";
 212                 name1 = toqstr(f.argument());
 213                 break;
 214         default:
 215                 name2 = toqstr(lyxaction.getActionName(f.action));
 216                 name1 = name2;
 217
 218                 if (!f.argument().empty()) {
 219                         name1 = name2 + ' ' + toqstr(f.argument());
 220                         name1.replace(' ', '_');
 221                 }
 222         }
 223
 224         string fullname = libFileSearch("images/" + path, name1, "png").absFilename();
 225         if (pm.load(toqstr(fullname)))
 226                 return pm;
 227
 228         fullname = libFileSearch("images/" + path, name2, "png").absFilename();
 229         if (pm.load(toqstr(fullname)))
 230                 return pm;
 231
 232         if (pm.load(":/images/" + path + name1 + ".png"))
 233                 return pm;
 234
 235         if (pm.load(":/images/" + path + name2 + ".png"))
 236                 return pm;
 237
 238         LYXERR(Debug::GUI, "Cannot find icon for command \""
 239                            << lyxaction.getActionName(f.action)
 240                            << '(' << to_utf8(f.argument()) << ")\"");
 241         if (unknown)
 242                 pm.load(":/images/unknown.png");
 243
 244         return pm;
 245 }
 246
 247
 248 /////////////////////////////////////////////////////////////////////
 249 //
 250 // GuiLayoutBox
 251 //
 252 /////////////////////////////////////////////////////////////////////
 253
 254 class LayoutItemDelegate : public QAbstractItemDelegate {
 255 public:
 256         ///
 257         explicit LayoutItemDelegate(QObject * parent = 0)
 258                 : QAbstractItemDelegate(parent)
 259         {}
 260
 261         ///
 262         void paint(QPainter * painter, QStyleOptionViewItem const & option,
 263                 QModelIndex const & index) const
 264         {
 265                 QComboBox * combo = static_cast<QComboBox *>(parent());
 266                 QSortFilterProxyModel const * model
 267                 = static_cast<QSortFilterProxyModel const *>(index.model());
 268                 QStyleOptionMenuItem opt = getStyleOption(option, index);
 269
 270                 painter->eraseRect(opt.rect);
 271
 272                 QString text = underlineFilter(opt.text);
 273                 opt.text = QString();
 274
 275                 // category header?
 276                 if (lyxrc.group_layouts) {
 277                         QString stdCat = category(*model->sourceModel(), 0);
 278                         QString cat = category(*index.model(), index.row());
 279
 280                         // not the standard layout and not the same as in the previous line?
 281                         if (stdCat != cat
 282                             && (index.row() == 0 || cat != category(*index.model(), index.row() - 1))) {
 283                                 // draw category header
 284                                 paintBackground(painter, opt);
 285                                 paintCategoryHeader(painter, opt,
 286                                         category(*index.model(), index.row()));
 287
 288                                 // move rect down below header
 289                                 opt.rect.moveTop(opt.rect.top() + headerHeight(opt));
 290                                 opt.menuRect = opt.rect;
 291                         }
 292                 }
 293
 294                 // Draw using the menu item style (this is how QComboBox does it).
 295                 // But for the rich text drawing below we will call it with an
 296                 // empty string, and later then draw over it the real string.
 297                 painter->save();
 298                 combo->style()->drawControl(QStyle::CE_MenuItem, &opt, painter, combo->view());
 299                 painter->restore();
 300
 301                 // Draw the rich text.
 302                 painter->save();
 303                 QColor col = opt.palette.text().color();
 304                 if (opt.state & QStyle::State_Selected)
 305                         col = opt.palette.highlightedText().color();
 306                 QAbstractTextDocumentLayout::PaintContext context;
 307                 context.palette.setColor(QPalette::Text, col);
 308
 309                 QTextDocument doc;
 310                 doc.setDefaultFont(opt.font);
 311                 doc.setHtml(text);
 312
 313                 QTextFrameFormat fmt = doc.rootFrame()->frameFormat();
 314                 fmt.setMargin(0);
 315                 doc.rootFrame()->setFrameFormat(fmt);
 316
 317                 painter->translate(opt.rect.x() + 5,
 318                         opt.rect.y() + (opt.rect.height() - opt.fontMetrics.height()) / 2);
 319                 doc.documentLayout()->draw(painter, context);
 320                 painter->restore();
 321         }
 322
 323         ///
 324         QSize sizeHint(QStyleOptionViewItem const & option,
 325                 QModelIndex const & index) const
 326         {
 327                 GuiLayoutBox * combo = static_cast<GuiLayoutBox *>(parent());
 328                 QSortFilterProxyModel const * model
 329                 = static_cast<QSortFilterProxyModel const *>(index.model());
 330
 331                 // we use a compressed menu style here
 332                 QStyleOptionMenuItem opt = getStyleOption(option, index);
 333                 QSize size = combo->style()->sizeFromContents(
 334                          QStyle::CT_MenuItem, &opt, opt.rect.size(), combo);
 335                 size.setHeight(opt.rect.height());
 336
 337                 /// QComboBox uses the first row height to estimate the
 338                 /// complete popup height during QComboBox::showPopup().
 339                 /// To avoid scrolling we have to sneak in space for the headers.
 340                 /// So we tweak this value accordingly. It's not nice, but the
 341                 /// only possible way it seems.
 342                 if (lyxrc.group_layouts && index.row() == 0 && combo->inShowPopup_) {
 343                         int itemHeight = size.height();
 344
 345                         // we have to show \c cats many headers:
 346                         unsigned cats = combo->visibleCategories_;
 347
 348                         // and we have \c n items to distribute the needed space over
 349                         unsigned n = combo->model()->rowCount();
 350
 351                         // so the needed average height (rounded upwards) is:
 352                         size.setHeight((headerHeight(opt) * cats + itemHeight * n + n - 1) / n);
 353                         return size;
 354                 }
 355
 356                 // Add space for the category headers here?
 357                 // Not for the standard layout though.
 358                 QString stdCat = category(*model->sourceModel(), 0);
 359                 QString cat = category(*index.model(), index.row());
 360                 if (lyxrc.group_layouts && stdCat != cat
 361                     && (index.row() == 0 || cat != category(*index.model(), index.row() - 1))) {
 362                         size.setHeight(size.height() + headerHeight(opt));
 363                 }
 364
 365                 return size;
 366         }
 367
 368 private:
 369         ///
 370         QString category(QAbstractItemModel const & model, int row) const
 371         {
 372                 return model.data(model.index(row, 2), Qt::DisplayRole).toString();
 373         }
 374
 375         ///
 376         void paintBackground(QPainter * painter, QStyleOptionMenuItem const & opt) const
 377         {
 378                 QComboBox * combo = static_cast<QComboBox *>(parent());
 379
 380                 // we only want to paint a background using the style, so
 381                 // disable every thing else
 382                 QStyleOptionMenuItem sopt = opt;
 383                 sopt.menuRect = sopt.rect;
 384                 sopt.state = QStyle::State_Active | QStyle::State_Enabled;
 385                 sopt.checked = false;
 386                 sopt.text = QString();
 387
 388                 painter->save();
 389                 combo->style()->drawControl(QStyle::CE_MenuItem, &sopt,
 390                         painter, combo->view());
 391                 painter->restore();
 392         }
 393
 394         ///
 395         int headerHeight(QStyleOptionMenuItem const & opt) const
 396         {
 397                 return opt.fontMetrics.height() * 8 / 10;
 398         }
 399         ///
 400         void paintCategoryHeader(QPainter * painter, QStyleOptionMenuItem const & opt,
 401                 QString const & category) const
 402         {
 403                 painter->save();
 404
 405                 // slightly blended color
 406                 QColor lcol = opt.palette.text().color();
 407                 lcol.setAlpha(127);
 408                 painter->setPen(lcol);
 409
 410                 // set 80% scaled, bold font
 411                 QFont font = opt.font;
 412                 font.setBold(true);
 413                 font.setWeight(QFont::Black);
 414                 font.setPointSize(opt.font.pointSize() * 8 / 10);
 415                 painter->setFont(font);
 416
 417                 // draw the centered text
 418                 QFontMetrics fm(font);
 419                 int w = opt.fontMetrics.width(category);
 420                 int x = opt.rect.x() + (opt.rect.width() - w) / 2;
 421                 int y = opt.rect.y() + fm.ascent();
 422                 int left = x;
 423                 int right = x + w;
 424                 painter->drawText(x, y, category);
 425
 426                 // the vertical position of the line: middle of lower case chars
 427                 int ymid = y - 1 - fm.xHeight() / 2; // -1 for the baseline
 428
 429                 // draw the horizontal line
 430                 if (!category.isEmpty()) {
 431                         painter->drawLine(opt.rect.x(), ymid, left - 1, ymid);
 432                         painter->drawLine(right + 1, ymid, opt.rect.right(), ymid);
 433                 } else
 434                         painter->drawLine(opt.rect.x(), ymid, opt.rect.right(), ymid);
 435
 436                 painter->restore();
 437         }
 438
 439
 440         ///
 441         QString underlineFilter(QString const & s) const
 442         {
 443                 // get filter
 444                 GuiLayoutBox * p = static_cast<GuiLayoutBox *>(parent());
 445                 QString const & f = p->filter();
 446                 if (f.isEmpty())
 447                         return s;
 448
 449                 // step through data item and put "(x)" for every matching character
 450                 QString r;
 451                 int lastp = -1;
 452                 p->filter();
 453                 for (int i = 0; i < f.length(); ++i) {
 454                         int p = s.indexOf(f[i], lastp + 1, Qt::CaseInsensitive);
 455                         BOOST_ASSERT(p != -1);
 456                         if (lastp == p - 1 && lastp != -1) {
 457                                 // remove ")" and append "x)"
 458                                 r = r.left(r.length() - 4) + s[p] + "</u>";
 459                         } else {
 460                                 // append "(x)"
 461                                 r += s.mid(lastp + 1, p - lastp - 1);
 462                                 r += QString("<u>") + s[p] + "</u>";
 463                         }
 464                         lastp = p;
 465                 }
 466                 r += s.mid(lastp + 1);
 467                 return r;
 468         }
 469
 470         ///
 471         QStyleOptionMenuItem getStyleOption(QStyleOptionViewItem const & option,
 472                 QModelIndex const & index) const
 473         {
 474                 QComboBox * combo = static_cast<QComboBox *>(parent());
 475
 476                 // create the options for a menu item
 477                 QStyleOptionMenuItem menuOption;
 478                 menuOption.palette = QApplication::palette("QMenu");
 479                 menuOption.state = QStyle::State_Active | QStyle::State_Enabled;
 480                 menuOption.font = combo->font();
 481                 menuOption.fontMetrics = QFontMetrics(menuOption.font);
 482                 menuOption.rect = option.rect;
 483                 menuOption.rect.setHeight(menuOption.fontMetrics.height() + 2);
 484                 menuOption.menuRect = menuOption.rect;
 485                 menuOption.tabWidth = 0;
 486                 menuOption.text = index.model()->data(index, Qt::DisplayRole).toString()
 487                         .replace(QLatin1Char('&'), QLatin1String("&&"));
 488                 menuOption.menuItemType = QStyleOptionMenuItem::Normal;
 489                 if (option.state & QStyle::State_Selected)
 490                         menuOption.state |= QStyle::State_Selected;
 491                 menuOption.checkType = QStyleOptionMenuItem::NotCheckable;
 492                 menuOption.checked = false;
 493                 return menuOption;
 494         }
 495 };
 496
 497
 498 class GuiLayoutFilterModel : public QSortFilterProxyModel {
 499 public:
 500         ///
 501         GuiLayoutFilterModel(QObject * parent = 0)
 502                 : QSortFilterProxyModel(parent)
 503         {}
 504
 505         ///
 506         void triggerLayoutChange()
 507         {
 508                 layoutAboutToBeChanged();
 509                 layoutChanged();
 510         }
 511 };
 512
 513
 514 GuiLayoutBox::GuiLayoutBox(GuiView & owner)
 515         : owner_(owner), lastSel_(-1), layoutItemDelegate_(new LayoutItemDelegate(this)),
 516           visibleCategories_(0), inShowPopup_(false)
 517 {
 518         setSizeAdjustPolicy(QComboBox::AdjustToContents);
 519         setFocusPolicy(Qt::ClickFocus);
 520         setMinimumWidth(sizeHint().width());
 521         setMaxVisibleItems(100);
 522
 523         // set the layout model with two columns
 524         // 1st: translated layout names
 525         // 2nd: raw layout names
 526         model_ = new QStandardItemModel(0, 2, this);
 527         filterModel_ = new GuiLayoutFilterModel(this);
 528         filterModel_->setSourceModel(model_);
 529         setModel(filterModel_);
 530
 531         // for the filtering we have to intercept characters
 532         view()->installEventFilter(this);
 533         view()->setItemDelegateForColumn(0, layoutItemDelegate_);
 534
 535         QObject::connect(this, SIGNAL(activated(int)),
 536                          this, SLOT(selected(int)));
 537         owner_.setLayoutDialog(this);
 538         updateContents(true);
 539 }
 540
 541
 542 void GuiLayoutBox::setFilter(QString const & s)
 543 {
 544         if (!s.isEmpty())
 545                 owner_.message(_("Filtering layouts with \"" + fromqstr(s) + "\". "
 546                         "Press ESC to remove filter."));
 547         else
 548                 owner_.message(_("Enter characters to filter the layout list."));
 549
 550         bool enabled = view()->updatesEnabled();
 551         view()->setUpdatesEnabled(false);
 552
 553         // remember old selection
 554         int sel = currentIndex();
 555         if (sel != -1)
 556                 lastSel_ = filterModel_->mapToSource(filterModel_->index(sel, 0)).row();
 557
 558         filter_ = s;
 559         filterModel_->setFilterRegExp(charFilterRegExp(filter_));
 560         countCategories();
 561
 562         // restore old selection
 563         if (lastSel_ != -1) {
 564                 QModelIndex i = filterModel_->mapFromSource(model_->index(lastSel_, 0));
 565                 if (i.isValid())
 566                         setCurrentIndex(i.row());
 567         }
 568
 569         // Workaround to resize to content size
 570         // FIXME: There must be a better way. The QComboBox::AdjustToContents)
 571         //        does not help.
 572         if (view()->isVisible()) {
 573                 // call QComboBox::showPopup. But set the inShowPopup_ flag to switch on
 574                 // the hack in the item delegate to make space for the headers.
 575                 // We do not call our implementation of showPopup because that
 576                 // would reset the filter again. This is only needed if the user clicks
 577                 // on the QComboBox.
 578                 BOOST_ASSERT(!inShowPopup_);
 579                 inShowPopup_ = true;
 580                 QComboBox::showPopup();
 581                 inShowPopup_ = false;
 582
 583                 // The item delegate hack is off again. So trigger a relayout of the popup.
 584                 filterModel_->triggerLayoutChange();
 585         }
 586
 587         view()->setUpdatesEnabled(enabled);
 588 }
 589
 590
 591 void GuiLayoutBox::countCategories()
 592 {
 593         int n = filterModel_->rowCount();
 594         visibleCategories_ = 0;
 595         if (n == 0 || !lyxrc.group_layouts)
 596                 return;
 597
 598         // skip the "Standard" category
 599         QString prevCat = model_->index(0, 2).data().toString();
 600
 601         // count categories
 602         for (int i = 0; i < n; ++i) {
 603                 QString cat = filterModel_->index(i, 2).data().toString();
 604                 if (cat != prevCat)
 605                         ++visibleCategories_;
 606                 prevCat = cat;
 607         }
 608 }
 609
 610
 611 QString GuiLayoutBox::charFilterRegExp(QString const & filter)
 612 {
 613         QString re;
 614         for (int i = 0; i < filter.length(); ++i) {
 615                 QChar c = filter[i];
 616                 if (c.isLower())
 617                         re += ".*[" + QRegExp::escape(c) + QRegExp::escape(c.toUpper()) + "]";
 618                 else
 619                         re += ".*" + QRegExp::escape(c);
 620         }
 621         return re;
 622 }
 623
 624
 625 void GuiLayoutBox::resetFilter()
 626 {
 627         setFilter(QString());
 628 }
 629
 630
 631 void GuiLayoutBox::showPopup()
 632 {
 633         owner_.message(_("Enter characters to filter the layout list."));
 634
 635         bool enabled = view()->updatesEnabled();
 636         view()->setUpdatesEnabled(false);
 637
 638         resetFilter();
 639
 640         // call QComboBox::showPopup. But set the inShowPopup_ flag to switch on
 641         // the hack in the item delegate to make space for the headers.
 642         BOOST_ASSERT(!inShowPopup_);
 643         inShowPopup_ = true;
 644         QComboBox::showPopup();
 645         inShowPopup_ = false;
 646
 647         // The item delegate hack is off again. So trigger a relayout of the popup.
 648         filterModel_->triggerLayoutChange();
 649
 650         view()->setUpdatesEnabled(enabled);
 651 }
 652
 653
 654 bool GuiLayoutBox::eventFilter(QObject * o, QEvent * e)
 655 {
 656         if (e->type() != QEvent::KeyPress)
 657                 return QComboBox::eventFilter(o, e);
 658
 659         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 660         bool modified = (ke->modifiers() == Qt::ControlModifier)
 661                 || (ke->modifiers() == Qt::AltModifier)
 662                 || (ke->modifiers() == Qt::MetaModifier);
 663
 664         switch (ke->key()) {
 665         case Qt::Key_Escape:
 666                 if (!modified && !filter_.isEmpty()) {
 667                         resetFilter();
 668                         return true;
 669                 }
 670                 break;
 671         case Qt::Key_Backspace:
 672                 if (!modified) {
 673                         // cut off one character
 674                         setFilter(filter_.left(filter_.length() - 1));
 675                 }
 676                 break;
 677         default:
 678                 if (modified || ke->text().isEmpty())
 679                         break;
 680                 // find chars for the filter string
 681                 QString s;
 682                 for (int i = 0; i < ke->text().length(); ++i) {
 683                         QChar c = ke->text()[i];
 684                         if (c.isLetterOrNumber()
 685                             || c.isSymbol()
 686                             || c.isPunct()
 687                             || c.category() == QChar::Separator_Space) {
 688                                 s += c;
 689                         }
 690                 }
 691                 if (!s.isEmpty()) {
 692                         // append new chars to the filter string
 693                         setFilter(filter_ + s);
 694                         return true;
 695                 }
 696                 break;
 697         }
 698
 699         return QComboBox::eventFilter(o, e);
 700 }
 701
 702
 703 void GuiLayoutBox::set(docstring const & layout)
 704 {
 705         resetFilter();
 706
 707         if (!text_class_)
 708                 return;
 709
 710         QString const & name = toqstr((*text_class_)[layout].name());
 711         if (name == currentText())
 712                 return;
 713
 714         QList<QStandardItem *> r = model_->findItems(name, Qt::MatchExactly, 1);
 715         if (r.empty()) {
 716                 lyxerr << "Trying to select non existent layout type "
 717                         << fromqstr(name) << endl;
 718                 return;
 719         }
 720
 721         setCurrentIndex(filterModel_->mapFromSource(r.first()->index()).row());
 722 }
 723
 724
 725 void GuiLayoutBox::addItemSort(docstring const & item, docstring const & category,
 726         bool sorted, bool sortedByCat)
 727 {
 728         QString qitem = toqstr(item);
 729         QString titem = toqstr(translateIfPossible(item));
 730         QString qcat = toqstr(translateIfPossible(category));
 731
 732         QList<QStandardItem *> row;
 733         row.append(new QStandardItem(titem));
 734         row.append(new QStandardItem(qitem));
 735         row.append(new QStandardItem(qcat));
 736
 737         // the first entry is easy
 738         int const end = model_->rowCount();
 739         if (end == 0) {
 740                 model_->appendRow(row);
 741                 return;
 742         }
 743
 744         // find category
 745         int i = 0;
 746         if (sortedByCat) {
 747                 while (i < end && model_->item(i, 2)->text() != qcat)
 748                         ++i;
 749         }
 750
 751         // skip the Standard layout
 752         if (i == 0)
 753                 ++i;
 754
 755         // the simple unsorted case
 756         if (!sorted) {
 757                 if (sortedByCat) {
 758                         // jump to the end of the category group
 759                         while (i < end && model_->item(i, 2)->text() == qcat)
 760                                 ++i;
 761                         model_->insertRow(i, row);
 762                 } else
 763                         model_->appendRow(row);
 764                 return;
 765         }
 766
 767         // find row to insert the item, after the separator if it exists
 768         if (i < end) {
 769                 // find alphabetic position
 770                 while (i != end
 771                        && model_->item(i, 0)->text().compare(titem) < 0
 772                        && (!sortedByCat || model_->item(i, 2)->text() == qcat))
 773                         ++i;
 774         }
 775
 776         model_->insertRow(i, row);
 777 }
 778
 779
 780 void GuiLayoutBox::updateContents(bool reset)
 781 {
 782         resetFilter();
 783
 784         Buffer const * buffer = owner_.buffer();
 785         if (!buffer) {
 786                 model_->clear();
 787                 setEnabled(false);
 788                 text_class_ = 0;
 789                 inset_ = 0;
 790                 return;
 791         }
 792
 793         // we'll only update the layout list if the text class has changed
 794         // or we've moved from one inset to another
 795         DocumentClass const * text_class = &buffer->params().documentClass();
 796         Inset const * inset =
 797         owner_.view()->cursor().innerParagraph().inInset();
 798         if (!reset && text_class_ == text_class && inset_ == inset) {
 799                 set(owner_.view()->cursor().innerParagraph().layout().name());
 800                 return;
 801         }
 802
 803         inset_ = inset;
 804         text_class_ = text_class;
 805
 806         model_->clear();
 807         DocumentClass::const_iterator lit = text_class_->begin();
 808         DocumentClass::const_iterator len = text_class_->end();
 809         for (; lit != len; ++lit) {
 810                 docstring const & name = lit->name();
 811                 // if this inset requires the empty layout, we skip the default
 812                 // layout
 813                 if (name == text_class_->defaultLayoutName() && inset &&
 814                     (inset->forceEmptyLayout() || inset->useEmptyLayout()))
 815                         continue;
 816                 // if it doesn't require the empty layout, we skip it
 817                 if (name == text_class_->emptyLayoutName() && inset &&
 818                     !inset->forceEmptyLayout() && !inset->useEmptyLayout())
 819                         continue;
 820                 addItemSort(name, lit->category(), lyxrc.sort_layouts, lyxrc.group_layouts);
 821         }
 822
 823         set(owner_.view()->cursor().innerParagraph().layout().name());
 824         countCategories();
 825
 826         // needed to recalculate size hint
 827         hide();
 828         setMinimumWidth(sizeHint().width());
 829         setEnabled(!buffer->isReadonly());
 830         show();
 831 }
 832
 833
 834 void GuiLayoutBox::selected(int index)
 835 {
 836         // get selection
 837         QModelIndex mindex = filterModel_->mapToSource(filterModel_->index(index, 1));
 838         docstring const layoutName =
 839                 qstring_to_ucs4(model_->itemFromIndex(mindex)->text());
 840
 841         owner_.setFocus();
 842
 843         if (!text_class_) {
 844                 updateContents(false);
 845                 resetFilter();
 846                 return;
 847         }
 848
 849         // find corresponding text class
 850         if (text_class_->hasLayout(layoutName)) {
 851                 FuncRequest const func(LFUN_LAYOUT, layoutName, FuncRequest::TOOLBAR);
 852                 theLyXFunc().setLyXView(&owner_);
 853                 lyx::dispatch(func);
 854                 updateContents(false);
 855                 resetFilter();
 856                 return;
 857         }
 858         lyxerr << "ERROR (layoutSelected): layout not found!" << endl;
 859 }
 860
 861
 862
 863 /////////////////////////////////////////////////////////////////////
 864 //
 865 // GuiToolbar
 866 //
 867 /////////////////////////////////////////////////////////////////////
 868
 869
 870 GuiToolbar::GuiToolbar(ToolbarInfo const & tbinfo, GuiView & owner)
 871         : QToolBar(qt_(tbinfo.gui_name), &owner), owner_(owner),
 872           layout_(0), command_buffer_(0)
 873 {
 874         // give visual separation between adjacent toolbars
 875         addSeparator();
 876
 877         // TODO: save toolbar position
 878         setMovable(true);
 879
 880         ToolbarInfo::item_iterator it = tbinfo.items.begin();
 881         ToolbarInfo::item_iterator end = tbinfo.items.end();
 882         for (; it != end; ++it)
 883                 add(*it);
 884 }
 885
 886
 887 Action * GuiToolbar::addItem(ToolbarItem const & item)
 888 {
 889         Action * act = new Action(owner_,
 890                 getIcon(item.func_, false),
 891           toqstr(item.label_), item.func_, toqstr(item.label_));
 892         actions_.append(act);
 893         return act;
 894 }
 895
 896 namespace {
 897
 898 class PaletteButton : public QToolButton
 899 {
 900 private:
 901         GuiToolbar * bar_;
 902         ToolbarItem const & tbitem_;
 903         bool initialized_;
 904 public:
 905         PaletteButton(GuiToolbar * bar, ToolbarItem const & item)
 906                 : QToolButton(bar), bar_(bar), tbitem_(item), initialized_(false)
 907         {
 908                 QString const label = qt_(to_ascii(tbitem_.label_));
 909                 setToolTip(label);
 910                 setStatusTip(label);
 911                 setText(label);
 912                 connect(bar_, SIGNAL(iconSizeChanged(QSize)),
 913                         this, SLOT(setIconSize(QSize)));
 914                 setCheckable(true);
 915                 ToolbarInfo const * tbinfo =
 916                         toolbarbackend.getDefinedToolbarInfo(tbitem_.name_);
 917                 if (tbinfo)
 918                         // use the icon of first action for the toolbar button
 919                         setIcon(getIcon(tbinfo->items.begin()->func_, true));
 920         }
 921
 922         void mousePressEvent(QMouseEvent * e)
 923         {
 924                 if (initialized_) {
 925                         QToolButton::mousePressEvent(e);
 926                         return;
 927                 }
 928
 929                 initialized_ = true;
 930
 931                 ToolbarInfo const * tbinfo =
 932                         toolbarbackend.getDefinedToolbarInfo(tbitem_.name_);
 933                 if (!tbinfo) {
 934                         lyxerr << "Unknown toolbar " << tbitem_.name_ << endl;
 935                         return;
 936                 }
 937                 IconPalette * panel = new IconPalette(this);
 938                 QString const label = qt_(to_ascii(tbitem_.label_));
 939                 panel->setWindowTitle(label);
 940                 connect(this, SIGNAL(clicked(bool)), panel, SLOT(setVisible(bool)));
 941                 connect(panel, SIGNAL(visible(bool)), this, SLOT(setChecked(bool)));
 942                 ToolbarInfo::item_iterator it = tbinfo->items.begin();
 943                 ToolbarInfo::item_iterator const end = tbinfo->items.end();
 944                 for (; it != end; ++it)
 945                         if (!getStatus(it->func_).unknown())
 946                                 panel->addButton(bar_->addItem(*it));
 947
 948                 QToolButton::mousePressEvent(e);
 949         }
 950 };
 951
 952 class MenuButton : public QToolButton
 953 {
 954 private:
 955         GuiToolbar * bar_;
 956         ToolbarItem const & tbitem_;
 957         bool initialized_;
 958 public:
 959         MenuButton(GuiToolbar * bar, ToolbarItem const & item)
 960                 : QToolButton(bar), bar_(bar), tbitem_(item), initialized_(false)
 961         {
 962                 setPopupMode(QToolButton::InstantPopup);
 963                 QString const label = qt_(to_ascii(tbitem_.label_));
 964                 setToolTip(label);
 965                 setStatusTip(label);
 966                 setText(label);
 967                 setIcon(QPixmap(":images/math/" + toqstr(tbitem_.name_) + ".png"));
 968                 connect(bar, SIGNAL(iconSizeChanged(QSize)),
 969                         this, SLOT(setIconSize(QSize)));
 970         }
 971
 972         void mousePressEvent(QMouseEvent * e)
 973         {
 974                 if (initialized_) {
 975                         QToolButton::mousePressEvent(e);
 976                         return;
 977                 }
 978
 979                 initialized_ = true;
 980
 981                 QString const label = qt_(to_ascii(tbitem_.label_));
 982                 ButtonMenu * m = new ButtonMenu(label, this);
 983                 m->setWindowTitle(label);
 984                 m->setTearOffEnabled(true);
 985                 connect(bar_, SIGNAL(updated()), m, SLOT(updateParent()));
 986                 ToolbarInfo const * tbinfo =
 987                         toolbarbackend.getDefinedToolbarInfo(tbitem_.name_);
 988                 if (!tbinfo) {
 989                         lyxerr << "Unknown toolbar " << tbitem_.name_ << endl;
 990                         return;
 991                 }
 992                 ToolbarInfo::item_iterator it = tbinfo->items.begin();
 993                 ToolbarInfo::item_iterator const end = tbinfo->items.end();
 994                 for (; it != end; ++it)
 995                         if (!getStatus(it->func_).unknown())
 996                                 m->add(bar_->addItem(*it));
 997                 setMenu(m);
 998
 999                 QToolButton::mousePressEvent(e);
1000         }
1001 };
1002
1003 }
1004
1005
1006 void GuiToolbar::add(ToolbarItem const & item)
1007 {
1008         switch (item.type_) {
1009         case ToolbarItem::SEPARATOR:
1010                 addSeparator();
1011                 break;
1012         case ToolbarItem::LAYOUTS:
1013                 layout_ = new GuiLayoutBox(owner_);
1014                 addWidget(layout_);
1015                 break;
1016         case ToolbarItem::MINIBUFFER:
1017                 command_buffer_ = new GuiCommandBuffer(&owner_);
1018                 addWidget(command_buffer_);
1019                 /// \todo find a Qt4 equivalent to setHorizontalStretchable(true);
1020                 //setHorizontalStretchable(true);
1021                 break;
1022         case ToolbarItem::TABLEINSERT: {
1023                 QToolButton * tb = new QToolButton;
1024                 tb->setCheckable(true);
1025                 tb->setIcon(getIcon(FuncRequest(LFUN_TABULAR_INSERT), true));
1026                 QString const label = qt_(to_ascii(item.label_));
1027                 tb->setToolTip(label);
1028                 tb->setStatusTip(label);
1029                 tb->setText(label);
1030                 InsertTableWidget * iv = new InsertTableWidget(owner_, tb);
1031                 connect(tb, SIGNAL(clicked(bool)), iv, SLOT(show(bool)));
1032                 connect(iv, SIGNAL(visible(bool)), tb, SLOT(setChecked(bool)));
1033                 connect(this, SIGNAL(updated()), iv, SLOT(updateParent()));
1034                 addWidget(tb);
1035                 break;
1036                 }
1037         case ToolbarItem::ICONPALETTE:
1038                 addWidget(new PaletteButton(this, item));
1039                 break;
1040
1041         case ToolbarItem::POPUPMENU: {
1042                 addWidget(new MenuButton(this, item));
1043                 break;
1044                 }
1045         case ToolbarItem::COMMAND: {
1046                 if (!getStatus(item.func_).unknown())
1047                         addAction(addItem(item));
1048                 break;
1049                 }
1050         default:
1051                 break;
1052         }
1053 }
1054
1055
1056 void GuiToolbar::saveInfo(ToolbarSection::ToolbarInfo & tbinfo)
1057 {
1058         // if tbinfo.state == auto *do not* set on/off
1059         if (tbinfo.state != ToolbarSection::ToolbarInfo::AUTO) {
1060                 if (GuiToolbar::isVisible())
1061                         tbinfo.state = ToolbarSection::ToolbarInfo::ON;
1062                 else
1063                         tbinfo.state = ToolbarSection::ToolbarInfo::OFF;
1064         }
1065         //
1066         // no need to save it here.
1067         Qt::ToolBarArea loc = owner_.toolBarArea(this);
1068
1069         if (loc == Qt::TopToolBarArea)
1070                 tbinfo.location = ToolbarSection::ToolbarInfo::TOP;
1071         else if (loc == Qt::BottomToolBarArea)
1072                 tbinfo.location = ToolbarSection::ToolbarInfo::BOTTOM;
1073         else if (loc == Qt::RightToolBarArea)
1074                 tbinfo.location = ToolbarSection::ToolbarInfo::RIGHT;
1075         else if (loc == Qt::LeftToolBarArea)
1076                 tbinfo.location = ToolbarSection::ToolbarInfo::LEFT;
1077         else
1078                 tbinfo.location = ToolbarSection::ToolbarInfo::NOTSET;
1079
1080         // save toolbar position. They are not used to restore toolbar position
1081         // now because move(x,y) does not work for toolbar.
1082         tbinfo.posx = pos().x();
1083         tbinfo.posy = pos().y();
1084 }
1085
1086
1087 void GuiToolbar::updateContents()
1088 {
1089         // update visible toolbars only
1090         if (!isVisible())
1091                 return;
1092         // This is a speed bottleneck because this is called on every keypress
1093         // and update calls getStatus, which copies the cursor at least two times
1094         for (int i = 0; i < actions_.size(); ++i)
1095                 actions_[i]->update();
1096
1097         if (layout_)
1098                 layout_->setEnabled(lyx::getStatus(FuncRequest(LFUN_LAYOUT)).enabled());
1099
1100         // emit signal
1101         updated();
1102 }
1103
1104
1105 } // namespace frontend
1106 } // namespace lyx
1107
1108 #include "GuiToolbar_moc.cpp"