src/frontends/qt4/GuiWorkArea.cpp

   1 /**
   2  * \file GuiWorkArea.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author John Levon
   7  * \author Abdelrazak Younes
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "GuiWorkArea.h"
  15
  16 #include "GuiApplication.h"
  17 #include "QLPainter.h"
  18 #include "QKeySymbol.h"
  19 #include "qt_helpers.h"
  20
  21 #include "frontends/LyXView.h"
  22
  23 #include "BufferView.h"
  24 #include "Color.h"
  25 #include "debug.h"
  26 #include "FuncRequest.h"
  27 #include "LyXRC.h"
  28 #include "version.h"
  29
  30 #include "support/filetools.h" // LibFileSearch
  31 #include "support/convert.h"
  32
  33 #include "graphics/GraphicsImage.h"
  34 #include "graphics/GraphicsLoader.h"
  35
  36 #include <QInputContext>
  37 #include <QLayout>
  38 #include <QMainWindow>
  39 #include <QPainter>
  40 #include <QScrollBar>
  41 #include <QTimer>
  42
  43 #include <boost/bind.hpp>
  44 #include <boost/current_function.hpp>
  45
  46 #ifdef Q_WS_X11
  47 #include <QX11Info>
  48 extern "C" int XEventsQueued(Display *display, int mode);
  49 #endif
  50
  51 #ifdef Q_WS_WIN
  52 int const CursorWidth = 2;
  53 #else
  54 int const CursorWidth = 1;
  55 #endif
  56
  57 #undef KeyPress
  58 #undef NoModifier
  59
  60 using std::endl;
  61 using std::string;
  62
  63 namespace lyx {
  64
  65 using support::FileName;
  66
  67 /// return the LyX mouse button state from Qt's
  68 static mouse_button::state q_button_state(Qt::MouseButton button)
  69 {
  70         mouse_button::state b = mouse_button::none;
  71         switch (button) {
  72                 case Qt::LeftButton:
  73                         b = mouse_button::button1;
  74                         break;
  75                 case Qt::MidButton:
  76                         b = mouse_button::button2;
  77                         break;
  78                 case Qt::RightButton:
  79                         b = mouse_button::button3;
  80                         break;
  81                 default:
  82                         break;
  83         }
  84         return b;
  85 }
  86
  87
  88 /// return the LyX mouse button state from Qt's
  89 mouse_button::state q_motion_state(Qt::MouseButtons state)
  90 {
  91         mouse_button::state b = mouse_button::none;
  92         if (state & Qt::LeftButton)
  93                 b |= mouse_button::button1;
  94         if (state & Qt::MidButton)
  95                 b |= mouse_button::button2;
  96         if (state & Qt::RightButton)
  97                 b |= mouse_button::button3;
  98         return b;
  99 }
 100
 101
 102 namespace frontend {
 103
 104 class CursorWidget {
 105 public:
 106         CursorWidget() {}
 107
 108         void draw(QPainter & painter)
 109         {
 110                 if (show_ && rect_.isValid()) {
 111                         switch (shape_) {
 112                         case L_SHAPE:
 113                                 painter.fillRect(rect_.x(), rect_.y(), CursorWidth, rect_.height(), color_);
 114                                 painter.setPen(color_);
 115                                 painter.drawLine(rect_.bottomLeft().x() + CursorWidth, rect_.bottomLeft().y(),
 116                                                                                                  rect_.bottomRight().x(), rect_.bottomLeft().y());
 117                                 break;
 118
 119                         case REVERSED_L_SHAPE:
 120                                 painter.fillRect(rect_.x() + rect_.height() / 3, rect_.y(), CursorWidth, rect_.height(), color_);
 121                                 painter.setPen(color_);
 122                                 painter.drawLine(rect_.bottomRight().x() - CursorWidth, rect_.bottomLeft().y(),
 123                                                                                                          rect_.bottomLeft().x(), rect_.bottomLeft().y());
 124                                 break;
 125
 126                         default:
 127                                 painter.fillRect(rect_, color_);
 128                                 break;
 129                         }
 130                 }
 131         }
 132
 133         void update(int x, int y, int h, CursorShape shape)
 134         {
 135                 color_ = guiApp->colorCache().get(Color::cursor);
 136                 shape_ = shape;
 137                 switch (shape) {
 138                 case L_SHAPE:
 139                         rect_ = QRect(x, y, CursorWidth + h / 3, h);
 140                         break;
 141                 case REVERSED_L_SHAPE:
 142                         rect_ = QRect(x - h / 3, y, CursorWidth + h / 3, h);
 143                         break;
 144                 default:
 145                         rect_ = QRect(x, y, CursorWidth, h);
 146                         break;
 147                 }
 148         }
 149
 150         void show(bool set_show = true) { show_ = set_show; }
 151         void hide() { show_ = false; }
 152
 153         QRect const & rect() { return rect_; }
 154
 155 private:
 156         ///
 157         CursorShape shape_;
 158         ///
 159         bool show_;
 160         ///
 161         QColor color_;
 162         ///
 163         QRect rect_;
 164 };
 165
 166
 167 // This is a 'heartbeat' generating synthetic mouse move events when the
 168 // cursor is at the top or bottom edge of the viewport. One scroll per 0.2 s
 169 SyntheticMouseEvent::SyntheticMouseEvent()
 170         : timeout(200), restart_timeout(true),
 171           x_old(-1), y_old(-1), scrollbar_value_old(-1.0)
 172 {}
 173
 174
 175 GuiWorkArea::GuiWorkArea(Buffer & buf, LyXView & lv)
 176         : WorkArea(buf, lv), need_resize_(false), schedule_redraw_(false),
 177           preedit_lines_(1)
 178 {
 179         screen_ = QPixmap(viewport()->width(), viewport()->height());
 180         cursor_ = new frontend::CursorWidget();
 181         cursor_->hide();
 182
 183         setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
 184         setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
 185         setAcceptDrops(true);
 186         setMouseTracking(true);
 187         setMinimumSize(100, 70);
 188
 189         viewport()->setAutoFillBackground(false);
 190         // We don't need double-buffering nor SystemBackground on
 191         // the viewport because we have our own backing pixmap.
 192         viewport()->setAttribute(Qt::WA_NoSystemBackground);
 193
 194         setFocusPolicy(Qt::WheelFocus);
 195
 196         viewport()->setCursor(Qt::IBeamCursor);
 197
 198         synthetic_mouse_event_.timeout.timeout.connect(
 199                 boost::bind(&GuiWorkArea::generateSyntheticMouseEvent,
 200                             this));
 201
 202         // Initialize the vertical Scroll Bar
 203         QObject::connect(verticalScrollBar(), SIGNAL(actionTriggered(int)),
 204                 this, SLOT(adjustViewWithScrollBar(int)));
 205
 206         // disable context menu for the scrollbar
 207         verticalScrollBar()->setContextMenuPolicy(Qt::NoContextMenu);
 208
 209         // PageStep only depends on the viewport height.
 210         verticalScrollBar()->setPageStep(viewport()->height());
 211
 212         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 213                 << "\n Area width\t" << width()
 214                 << "\n Area height\t" << height()
 215                 << "\n viewport width\t" << viewport()->width()
 216                 << "\n viewport height\t" << viewport()->height()
 217                 << endl;
 218
 219         // Enables input methods for asian languages.
 220         // Must be set when creating custom text editing widgets.
 221         setAttribute(Qt::WA_InputMethodEnabled, true);
 222 }
 223
 224
 225 void GuiWorkArea::setScrollbarParams(int h, int scroll_pos, int scroll_line_step)
 226 {
 227         if (verticalScrollBarPolicy() != Qt::ScrollBarAlwaysOn)
 228                 setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
 229
 230         verticalScrollBar()->setTracking(false);
 231
 232         // do what cursor movement does (some grey)
 233         h += height() / 4;
 234         int scroll_max_ = std::max(0, h - height());
 235
 236         verticalScrollBar()->setRange(0, scroll_max_);
 237         verticalScrollBar()->setSliderPosition(scroll_pos);
 238         verticalScrollBar()->setSingleStep(scroll_line_step);
 239         verticalScrollBar()->setValue(scroll_pos);
 240
 241         verticalScrollBar()->setTracking(true);
 242 }
 243
 244
 245 void GuiWorkArea::adjustViewWithScrollBar(int)
 246 {
 247         scrollBufferView(verticalScrollBar()->sliderPosition());
 248         QApplication::syncX();
 249 }
 250
 251
 252 void GuiWorkArea::focusInEvent(QFocusEvent * /*event*/)
 253 {
 254         // No need to do anything if we didn't change views...
 255 //      if (theApp() == 0 || &lyx_view_ == theApp()->currentView())
 256 //              return;
 257
 258         theApp()->setCurrentView(*lyx_view_);
 259
 260         // Repaint the whole screen.
 261         // Note: this is different from redraw() as only the backing pixmap
 262         // will be redrawn, which is cheap.
 263         viewport()->repaint();
 264
 265         startBlinkingCursor();
 266 }
 267
 268
 269 void GuiWorkArea::focusOutEvent(QFocusEvent * /*event*/)
 270 {
 271         stopBlinkingCursor();
 272 }
 273
 274
 275 void GuiWorkArea::mousePressEvent(QMouseEvent * e)
 276 {
 277         if (dc_event_.active && dc_event_ == *e) {
 278                 dc_event_.active = false;
 279                 FuncRequest cmd(LFUN_MOUSE_TRIPLE,
 280                         e->x(), e->y(),
 281                         q_button_state(e->button()));
 282                 dispatch(cmd);
 283                 return;
 284         }
 285
 286         inputContext()->reset();
 287
 288         FuncRequest const cmd(LFUN_MOUSE_PRESS, e->x(), e->y(),
 289                 q_button_state(e->button()));
 290         dispatch(cmd, q_key_state(e->modifiers()));
 291 }
 292
 293
 294 void GuiWorkArea::mouseReleaseEvent(QMouseEvent * e)
 295 {
 296         if (synthetic_mouse_event_.timeout.running())
 297                 synthetic_mouse_event_.timeout.stop();
 298
 299         FuncRequest const cmd(LFUN_MOUSE_RELEASE, e->x(), e->y(),
 300                               q_button_state(e->button()));
 301         dispatch(cmd);
 302 }
 303
 304
 305 void GuiWorkArea::mouseMoveEvent(QMouseEvent * e)
 306 {
 307         // we kill the triple click if we move
 308         doubleClickTimeout();
 309         FuncRequest cmd(LFUN_MOUSE_MOTION, e->x(), e->y(),
 310                               q_motion_state(e->buttons()));
 311
 312         // If we're above or below the work area...
 313         if (e->y() <= 20 || e->y() >= viewport()->height() - 20) {
 314                 // Make sure only a synthetic event can cause a page scroll,
 315                 // so they come at a steady rate:
 316                 if (e->y() <= 20)
 317                         // _Force_ a scroll up:
 318                         cmd.y = -40;
 319                 else
 320                         cmd.y = viewport()->height();
 321                 // Store the event, to be handled when the timeout expires.
 322                 synthetic_mouse_event_.cmd = cmd;
 323
 324                 if (synthetic_mouse_event_.timeout.running())
 325                         // Discard the event. Note that it _may_ be handled
 326                         // when the timeout expires if
 327                         // synthetic_mouse_event_.cmd has not been overwritten.
 328                         // Ie, when the timeout expires, we handle the
 329                         // most recent event but discard all others that
 330                         // occurred after the one used to start the timeout
 331                         // in the first place.
 332                         return;
 333                 else {
 334                         synthetic_mouse_event_.restart_timeout = true;
 335                         synthetic_mouse_event_.timeout.start();
 336                         // Fall through to handle this event...
 337                 }
 338
 339         } else if (synthetic_mouse_event_.timeout.running()) {
 340                 // Store the event, to be possibly handled when the timeout
 341                 // expires.
 342                 // Once the timeout has expired, normal control is returned
 343                 // to mouseMoveEvent (restart_timeout = false).
 344                 // This results in a much smoother 'feel' when moving the
 345                 // mouse back into the work area.
 346                 synthetic_mouse_event_.cmd = cmd;
 347                 synthetic_mouse_event_.restart_timeout = false;
 348                 return;
 349         }
 350
 351         // Has anything changed on-screen since the last QMouseEvent
 352         // was received?
 353         double const scrollbar_value = verticalScrollBar()->value();
 354         if (e->x() != synthetic_mouse_event_.x_old ||
 355             e->y() != synthetic_mouse_event_.y_old ||
 356             scrollbar_value != synthetic_mouse_event_.scrollbar_value_old) {
 357                 // Yes it has. Store the params used to check this.
 358                 synthetic_mouse_event_.x_old = e->x();
 359                 synthetic_mouse_event_.y_old = e->y();
 360                 synthetic_mouse_event_.scrollbar_value_old = scrollbar_value;
 361
 362                 // ... and dispatch the event to the LyX core.
 363                 dispatch(cmd);
 364         }
 365 }
 366
 367
 368 void GuiWorkArea::wheelEvent(QWheelEvent * e)
 369 {
 370         // Wheel rotation by one notch results in a delta() of 120 (see
 371         // documentation of QWheelEvent)
 372         int const lines = qApp->wheelScrollLines() * e->delta() / 120;
 373         verticalScrollBar()->setValue(verticalScrollBar()->value() -
 374                         lines *  verticalScrollBar()->singleStep());
 375         adjustViewWithScrollBar();
 376 }
 377
 378
 379 void GuiWorkArea::generateSyntheticMouseEvent()
 380 {
 381 // Set things off to generate the _next_ 'pseudo' event.
 382         if (synthetic_mouse_event_.restart_timeout)
 383                 synthetic_mouse_event_.timeout.start();
 384
 385         // Has anything changed on-screen since the last timeout signal
 386         // was received?
 387         double const scrollbar_value = verticalScrollBar()->value();
 388         if (scrollbar_value != synthetic_mouse_event_.scrollbar_value_old) {
 389                 // Yes it has. Store the params used to check this.
 390                 synthetic_mouse_event_.scrollbar_value_old = scrollbar_value;
 391
 392                 // ... and dispatch the event to the LyX core.
 393                 dispatch(synthetic_mouse_event_.cmd);
 394         }
 395 }
 396
 397
 398 void GuiWorkArea::keyPressEvent(QKeyEvent * e)
 399 {
 400         // do nothing if there are other events
 401         // (the auto repeated events come too fast)
 402         // \todo FIXME: remove hard coded Qt keys, process the key binding
 403 #ifdef Q_WS_X11
 404         if (XEventsQueued(QX11Info::display(), 0) > 1 && e->isAutoRepeat()
 405                         && (Qt::Key_PageDown || Qt::Key_PageUp)) {
 406                 LYXERR(Debug::KEY)
 407                         << BOOST_CURRENT_FUNCTION << endl
 408                         << "system is busy: scroll key event ignored" << endl;
 409                 e->ignore();
 410                 return;
 411         }
 412 #endif
 413
 414         LYXERR(Debug::KEY) << BOOST_CURRENT_FUNCTION
 415                 << " count=" << e->count()
 416                 << " text=" << fromqstr(e->text())
 417                 << " isAutoRepeat=" << e->isAutoRepeat()
 418                 << " key=" << e->key()
 419                 << endl;
 420
 421         boost::shared_ptr<QKeySymbol> sym(new QKeySymbol);
 422         sym->set(e);
 423         processKeySym(sym, q_key_state(e->modifiers()));
 424 }
 425
 426 void GuiWorkArea::doubleClickTimeout() {
 427         dc_event_.active = false;
 428 }
 429
 430 void GuiWorkArea::mouseDoubleClickEvent(QMouseEvent * e)
 431 {
 432         dc_event_ = double_click(e);
 433         QTimer::singleShot(QApplication::doubleClickInterval(), this,
 434                            SLOT(doubleClickTimeout()));
 435         FuncRequest cmd(LFUN_MOUSE_DOUBLE,
 436                         e->x(), e->y(),
 437                         q_button_state(e->button()));
 438         dispatch(cmd);
 439 }
 440
 441
 442 void GuiWorkArea::resizeEvent(QResizeEvent * ev)
 443 {
 444         QAbstractScrollArea::resizeEvent(ev);
 445         need_resize_ = true;
 446 }
 447
 448
 449 void GuiWorkArea::update(int x, int y, int w, int h)
 450 {
 451         viewport()->repaint(x, y, w, h);
 452 }
 453
 454
 455 void GuiWorkArea::paintEvent(QPaintEvent * ev)
 456 {
 457         QRect const rc = ev->rect();
 458         /*
 459         LYXERR(Debug::PAINTING) << "paintEvent begin: x: " << rc.x()
 460                 << " y: " << rc.y()
 461                 << " w: " << rc.width()
 462                 << " h: " << rc.height() << endl;
 463         */
 464
 465         if (need_resize_) {
 466                 verticalScrollBar()->setPageStep(viewport()->height());
 467                 screen_ = QPixmap(viewport()->width(), viewport()->height());
 468                 resizeBufferView();
 469                 updateScreen();
 470                 WorkArea::hideCursor();
 471                 WorkArea::showCursor();
 472                 need_resize_ = false;
 473         }
 474
 475         QPainter pain(viewport());
 476         pain.drawPixmap(rc, screen_, rc);
 477         cursor_->draw(pain);
 478 }
 479
 480
 481 void GuiWorkArea::expose(int x, int y, int w, int h)
 482 {
 483         updateScreen();
 484         update(x, y, w, h);
 485 }
 486
 487
 488 void GuiWorkArea::updateScreen()
 489 {
 490         QLPainter pain(&screen_);
 491         verticalScrollBar()->show();
 492         buffer_view_->draw(pain);
 493 }
 494
 495
 496 void GuiWorkArea::showCursor(int x, int y, int h, CursorShape shape)
 497 {
 498         if (schedule_redraw_) {
 499                 buffer_view_->update(Update::Force);
 500                 updateScreen();
 501                 viewport()->update(QRect(0, 0, viewport()->width(), viewport()->height()));
 502                 schedule_redraw_ = false;
 503                 // Show the cursor immediately after the update.
 504                 hideCursor();
 505                 toggleCursor();
 506                 return;
 507         }
 508
 509         cursor_->update(x, y, h, shape);
 510         cursor_->show();
 511         viewport()->update(cursor_->rect());
 512 }
 513
 514
 515 void GuiWorkArea::removeCursor()
 516 {
 517         cursor_->hide();
 518         //if (!qApp->focusWidget())
 519                 viewport()->update(cursor_->rect());
 520 }
 521
 522
 523 void GuiWorkArea::inputMethodEvent(QInputMethodEvent * e)
 524 {
 525         QString const & commit_string = e->commitString();
 526         docstring const & preedit_string
 527                 = qstring_to_ucs4(e->preeditString());
 528
 529         if (!commit_string.isEmpty()) {
 530
 531                 LYXERR(Debug::KEY) << BOOST_CURRENT_FUNCTION
 532                         << " preeditString =" << fromqstr(e->preeditString())
 533                         << " commitString  =" << fromqstr(e->commitString())
 534                         << endl;
 535
 536                 int key = 0;
 537
 538                 // FIXME Iwami 04/01/07: we should take care also of UTF16 surrogates here.
 539                 for (int i = 0; i < commit_string.size(); ++i) {
 540                         QKeyEvent ev(QEvent::KeyPress, key, Qt::NoModifier, commit_string[i]);
 541                         keyPressEvent(&ev);
 542                 }
 543         }
 544
 545         // Hide the cursor during the kana-kanji transformation.
 546         if (preedit_string.empty())
 547                 startBlinkingCursor();
 548         else
 549                 stopBlinkingCursor();
 550
 551         // last_width : for checking if last preedit string was/wasn't empty.
 552         static bool last_width = false;
 553         if (!last_width && preedit_string.empty()) {
 554                 // if last_width is last length of preedit string.
 555                 e->accept();
 556                 return;
 557         }
 558
 559         QLPainter pain(&screen_);
 560         buffer_view_->updateMetrics(false);
 561         buffer_view_->draw(pain);
 562         Font font = buffer_view_->cursor().getFont();
 563         FontMetrics const & fm = theFontMetrics(font);
 564         int height = fm.maxHeight();
 565         int cur_x = cursor_->rect().left();
 566         int cur_y = cursor_->rect().bottom();
 567
 568         // redraw area of preedit string.
 569         update(0, cur_y - height, GuiWorkArea::width(),
 570                 (height + 1) * preedit_lines_);
 571
 572         if (preedit_string.empty()) {
 573                 last_width = false;
 574                 preedit_lines_ = 1;
 575                 e->accept();
 576                 return;
 577         }
 578         last_width = true;
 579
 580         // att : stores an IM attribute.
 581         QList<QInputMethodEvent::Attribute> const & att = e->attributes();
 582
 583         // get attributes of input method cursor.
 584         // cursor_pos : cursor position in preedit string.
 585         size_t cursor_pos = 0;
 586         bool cursor_is_visible = false;
 587         for (int i = 0; i < att.size(); ++i) {
 588                 if (att.at(i).type == QInputMethodEvent::Cursor) {
 589                         cursor_pos = att.at(i).start;
 590                         cursor_is_visible = att.at(i).length != 0;
 591                         break;
 592                 }
 593         }
 594
 595         size_t preedit_length = preedit_string.length();
 596
 597         // get position of selection in input method.
 598         // FIXME: isn't there a way to do this simplier?
 599         // rStart : cursor position in selected string in IM.
 600         size_t rStart = 0;
 601         // rLength : selected string length in IM.
 602         size_t rLength = 0;
 603         if (cursor_pos < preedit_length) {
 604                 for (int i = 0; i < att.size(); ++i) {
 605                         if (att.at(i).type == QInputMethodEvent::TextFormat) {
 606                                 if (att.at(i).start <= int(cursor_pos)
 607                                         && int(cursor_pos) < att.at(i).start + att.at(i).length) {
 608                                                 rStart = att.at(i).start;
 609                                                 rLength = att.at(i).length;
 610                                                 if (!cursor_is_visible)
 611                                                         cursor_pos += rLength;
 612                                                 break;
 613                                 }
 614                         }
 615                 }
 616         }
 617         else {
 618                 rStart = cursor_pos;
 619                 rLength = 0;
 620         }
 621
 622         int const right_margin = rightMargin();
 623         Painter::preedit_style ps;
 624         // Most often there would be only one line:
 625         preedit_lines_ = 1;
 626         for (size_t pos = 0; pos != preedit_length; ++pos) {
 627                 char_type const typed_char = preedit_string[pos];
 628                 // reset preedit string style
 629                 ps = Painter::preedit_default;
 630
 631                 // if we reached the right extremity of the screen, go to next line.
 632                 if (cur_x + fm.width(typed_char) > GuiWorkArea::width() - right_margin) {
 633                         cur_x = right_margin;
 634                         cur_y += height + 1;
 635                         ++preedit_lines_;
 636                 }
 637                 // preedit strings are displayed with dashed underline
 638                 // and partial strings are displayed white on black indicating
 639                 // that we are in selecting mode in the input method.
 640                 // FIXME: rLength == preedit_length is not a changing condition
 641                 // FIXME: should be put out of the loop.
 642                 if (pos >= rStart
 643                         && pos < rStart + rLength
 644                         && !(cursor_pos < rLength && rLength == preedit_length))
 645                         ps = Painter::preedit_selecting;
 646
 647                 if (pos == cursor_pos
 648                         && (cursor_pos < rLength && rLength == preedit_length))
 649                         ps = Painter::preedit_cursor;
 650
 651                 // draw one character and update cur_x.
 652                 cur_x += pain.preeditText(cur_x, cur_y, typed_char, font, ps);
 653         }
 654
 655         // update the preedit string screen area.
 656         update(0, cur_y - preedit_lines_*height, GuiWorkArea::width(),
 657                 (height + 1) * preedit_lines_);
 658
 659         // Don't forget to accept the event!
 660         e->accept();
 661 }
 662
 663
 664 QVariant GuiWorkArea::inputMethodQuery(Qt::InputMethodQuery query) const
 665 {
 666         QRect cur_r(0,0,0,0);
 667         switch (query) {
 668                 // this is the CJK-specific composition window position.
 669                 case Qt::ImMicroFocus:
 670                         cur_r = cursor_->rect();
 671                         if (preedit_lines_ != 1)
 672                                 cur_r.moveLeft(10);
 673                         cur_r.moveBottom(cur_r.bottom() + cur_r.height() * preedit_lines_);
 674                         // return lower right of cursor in LyX.
 675                         return cur_r;
 676                 default:
 677                         return QWidget::inputMethodQuery(query);
 678         }
 679 }
 680
 681 } // namespace frontend
 682 } // namespace lyx
 683
 684 #include "GuiWorkArea_moc.cpp"