2 * \file GuiWorkArea.cpp
3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
7 * \author Abdelrazak Younes
9 * Full author contact details are available in file CREDITS.
14 #include "GuiWorkArea.h"
17 #include "BufferParams.h"
18 #include "BufferView.h"
19 #include "CoordCache.h"
22 #include "FuncRequest.h"
23 #include "GuiApplication.h"
24 #include "GuiKeySymbol.h"
25 #include "GuiPainter.h"
26 #include "GuiPopupMenu.h"
28 #include "KeySymbol.h"
32 #include "MetricsInfo.h"
33 #include "qt_helpers.h"
36 #include "graphics/GraphicsImage.h"
37 #include "graphics/GraphicsLoader.h"
39 #include "support/debug.h"
40 #include "support/gettext.h"
41 #include "support/FileName.h"
42 #include "support/ForkedCalls.h"
44 #include "frontends/Application.h"
45 #include "frontends/FontMetrics.h"
46 #include "frontends/WorkAreaManager.h"
48 #include <QContextMenuEvent>
49 #include <QInputContext>
52 #include <QMainWindow>
58 #include <QToolButton>
61 #include <boost/bind.hpp>
65 extern "C" int XEventsQueued(Display *display, int mode);
69 int const CursorWidth = 2;
71 int const CursorWidth = 1;
78 using namespace lyx::support;
83 /// return the LyX mouse button state from Qt's
84 static mouse_button::state q_button_state(Qt::MouseButton button)
86 mouse_button::state b = mouse_button::none;
89 b = mouse_button::button1;
92 b = mouse_button::button2;
95 b = mouse_button::button3;
104 /// return the LyX mouse button state from Qt's
105 mouse_button::state q_motion_state(Qt::MouseButtons state)
107 mouse_button::state b = mouse_button::none;
108 if (state & Qt::LeftButton)
109 b |= mouse_button::button1;
110 if (state & Qt::MidButton)
111 b |= mouse_button::button2;
112 if (state & Qt::RightButton)
113 b |= mouse_button::button3;
124 void draw(QPainter & painter)
126 if (show_ && rect_.isValid()) {
129 painter.fillRect(rect_.x(), rect_.y(), CursorWidth, rect_.height(), color_);
130 painter.setPen(color_);
131 painter.drawLine(rect_.bottomLeft().x() + CursorWidth, rect_.bottomLeft().y(),
132 rect_.bottomRight().x(), rect_.bottomLeft().y());
135 case REVERSED_L_SHAPE:
136 painter.fillRect(rect_.x() + rect_.height() / 3, rect_.y(), CursorWidth, rect_.height(), color_);
137 painter.setPen(color_);
138 painter.drawLine(rect_.bottomRight().x() - CursorWidth, rect_.bottomLeft().y(),
139 rect_.bottomLeft().x(), rect_.bottomLeft().y());
143 painter.fillRect(rect_, color_);
149 void update(int x, int y, int h, CursorShape shape)
151 color_ = guiApp->colorCache().get(Color_cursor);
155 rect_ = QRect(x, y, CursorWidth + h / 3, h);
157 case REVERSED_L_SHAPE:
158 rect_ = QRect(x - h / 3, y, CursorWidth + h / 3, h);
161 rect_ = QRect(x, y, CursorWidth, h);
166 void show(bool set_show = true) { show_ = set_show; }
167 void hide() { show_ = false; }
169 QRect const & rect() { return rect_; }
183 // This is a 'heartbeat' generating synthetic mouse move events when the
184 // cursor is at the top or bottom edge of the viewport. One scroll per 0.2 s
185 SyntheticMouseEvent::SyntheticMouseEvent()
186 : timeout(200), restart_timeout(true),
187 x_old(-1), y_old(-1), scrollbar_value_old(-1.0)
192 GuiWorkArea::GuiWorkArea(Buffer & buffer, GuiView & lv)
193 : buffer_view_(new BufferView(buffer)), lyx_view_(&lv),
194 cursor_visible_(false),
195 need_resize_(false), schedule_redraw_(false),
198 buffer.workAreaManager().add(this);
200 cursor_timeout_.setInterval(400);
201 connect(&cursor_timeout_, SIGNAL(timeout()),
202 this, SLOT(toggleCursor()));
204 cursor_timeout_.start();
206 screen_ = QPixmap(viewport()->width(), viewport()->height());
207 cursor_ = new frontend::CursorWidget();
210 setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
211 setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
212 setAcceptDrops(true);
213 setMouseTracking(true);
214 setMinimumSize(100, 70);
217 viewport()->setAutoFillBackground(false);
218 // We don't need double-buffering nor SystemBackground on
219 // the viewport because we have our own backing pixmap.
220 viewport()->setAttribute(Qt::WA_NoSystemBackground);
222 setFocusPolicy(Qt::WheelFocus);
224 viewport()->setCursor(Qt::IBeamCursor);
226 synthetic_mouse_event_.timeout.timeout.connect(
227 boost::bind(&GuiWorkArea::generateSyntheticMouseEvent,
230 // Initialize the vertical Scroll Bar
231 QObject::connect(verticalScrollBar(), SIGNAL(actionTriggered(int)),
232 this, SLOT(adjustViewWithScrollBar(int)));
234 // disable context menu for the scrollbar
235 verticalScrollBar()->setContextMenuPolicy(Qt::NoContextMenu);
237 // PageStep only depends on the viewport height.
238 verticalScrollBar()->setPageStep(viewport()->height());
240 LYXERR(Debug::GUI, "viewport width: " << viewport()->width()
241 << " viewport height: " << viewport()->height());
243 // Enables input methods for asian languages.
244 // Must be set when creating custom text editing widgets.
245 setAttribute(Qt::WA_InputMethodEnabled, true);
250 GuiWorkArea::~GuiWorkArea()
252 buffer_view_->buffer().workAreaManager().remove(this);
258 void GuiWorkArea::close()
260 lyx_view_->removeWorkArea(this);
264 BufferView & GuiWorkArea::bufferView()
266 return *buffer_view_;
270 BufferView const & GuiWorkArea::bufferView() const
272 return *buffer_view_;
276 void GuiWorkArea::stopBlinkingCursor()
278 cursor_timeout_.stop();
283 void GuiWorkArea::startBlinkingCursor()
286 cursor_timeout_.start();
290 void GuiWorkArea::redraw()
293 // No need to redraw in this case.
296 // No need to do anything if this is the current view. The BufferView
297 // metrics are already up to date.
298 if (lyx_view_ != guiApp->currentView()) {
299 // FIXME: it would be nice to optimize for the off-screen case.
300 buffer_view_->updateMetrics();
301 buffer_view_->cursor().fixIfBroken();
304 // update cursor position, because otherwise it has to wait until
305 // the blinking interval is over
306 if (cursor_visible_) {
311 LYXERR(Debug::WORKAREA, "WorkArea::redraw screen");
313 update(0, 0, viewport()->width(), viewport()->height());
315 /// \warning: scrollbar updating *must* be done after the BufferView is drawn
316 /// because \c BufferView::updateScrollbar() is called in \c BufferView::draw().
318 lyx_view_->updateStatusBar();
320 if (lyxerr.debugging(Debug::WORKAREA))
321 buffer_view_->coordCache().dump();
325 void GuiWorkArea::processKeySym(KeySymbol const & key, KeyModifier mod)
327 // In order to avoid bad surprise in the middle of an operation,
328 // we better stop the blinking cursor.
329 stopBlinkingCursor();
331 theLyXFunc().setLyXView(lyx_view_);
332 theLyXFunc().processKeySym(key, mod);
336 void GuiWorkArea::dispatch(FuncRequest const & cmd0, KeyModifier mod)
339 if (cmd0.action == LFUN_FILE_OPEN) {
340 lyx_view_->dispatch(cmd0);
344 theLyXFunc().setLyXView(lyx_view_);
348 if (cmd0.action == LFUN_MOUSE_PRESS) {
349 if (mod == ShiftModifier)
350 cmd = FuncRequest(cmd0, "region-select");
351 else if (mod == ControlModifier)
352 cmd = FuncRequest(cmd0, "paragraph-select");
359 // In order to avoid bad surprise in the middle of an operation, we better stop
360 // the blinking cursor.
361 if (!(cmd.action == LFUN_MOUSE_MOTION
362 && cmd.button() == mouse_button::none))
363 stopBlinkingCursor();
365 buffer_view_->mouseEventDispatch(cmd);
367 // Skip these when selecting
368 if (cmd.action != LFUN_MOUSE_MOTION) {
369 lyx_view_->updateLayoutList();
370 lyx_view_->updateToolbars();
373 // GUI tweaks except with mouse motion with no button pressed.
374 if (!(cmd.action == LFUN_MOUSE_MOTION
375 && cmd.button() == mouse_button::none)) {
376 // Slight hack: this is only called currently when we
377 // clicked somewhere, so we force through the display
378 // of the new status here.
379 lyx_view_->clearMessage();
381 // Show the cursor immediately after any operation.
382 startBlinkingCursor();
387 void GuiWorkArea::resizeBufferView()
389 // WARNING: Please don't put any code that will trigger a repaint here!
390 // We are already inside a paint event.
391 lyx_view_->setBusy(true);
392 buffer_view_->resize(viewport()->width(), viewport()->height());
393 lyx_view_->updateLayoutList();
394 lyx_view_->setBusy(false);
395 need_resize_ = false;
399 void GuiWorkArea::showCursor()
404 CursorShape shape = BAR_SHAPE;
406 Font const & realfont = buffer_view_->cursor().real_current_font;
407 BufferParams const & bp = buffer_view_->buffer().params();
408 bool const samelang = realfont.language() == bp.language;
409 bool const isrtl = realfont.isVisibleRightToLeft();
411 if (!samelang || isrtl != bp.language->rightToLeft()) {
414 shape = REVERSED_L_SHAPE;
417 // The ERT language hack needs fixing up
418 if (realfont.language() == latex_language)
421 Font const font = buffer_view_->cursor().getFont();
422 FontMetrics const & fm = theFontMetrics(font);
423 int const asc = fm.maxAscent();
424 int const des = fm.maxDescent();
428 buffer_view_->cursor().getPos(x, y);
431 // if it doesn't touch the screen, don't try to show it
432 if (y + h < 0 || y >= viewport()->height())
435 cursor_visible_ = true;
436 showCursor(x, y, h, shape);
440 void GuiWorkArea::hideCursor()
442 if (!cursor_visible_)
445 cursor_visible_ = false;
450 void GuiWorkArea::toggleCursor()
457 // Use this opportunity to deal with any child processes that
458 // have finished but are waiting to communicate this fact
459 // to the rest of LyX.
460 ForkedCallsController::handleCompletedProcesses();
464 void GuiWorkArea::updateScrollbar()
466 verticalScrollBar()->setTracking(false);
468 ScrollbarParameters const & scroll_ = buffer_view_->scrollbarParameters();
470 // do what cursor movement does (some grey)
471 int const h = scroll_.height + viewport()->height() / 4;
472 int scroll_max_ = max(0, h - viewport()->height());
474 verticalScrollBar()->setRange(0, scroll_max_);
475 verticalScrollBar()->setSliderPosition(scroll_.position);
476 verticalScrollBar()->setSingleStep(scroll_.lineScrollHeight);
477 verticalScrollBar()->setValue(scroll_.position);
479 verticalScrollBar()->setTracking(true);
483 void GuiWorkArea::adjustViewWithScrollBar(int action)
485 stopBlinkingCursor();
486 if (action == QAbstractSlider::SliderPageStepAdd)
487 buffer_view_->scrollDown(viewport()->height());
488 else if (action == QAbstractSlider::SliderPageStepSub)
489 buffer_view_->scrollUp(viewport()->height());
491 buffer_view_->scrollDocView(verticalScrollBar()->sliderPosition());
493 if (lyxrc.cursor_follows_scrollbar) {
494 buffer_view_->setCursorFromScrollbar();
495 lyx_view_->updateLayoutList();
497 // Show the cursor immediately after any operation.
498 startBlinkingCursor();
499 QApplication::syncX();
503 bool GuiWorkArea::event(QEvent * e)
505 if (e->type() == QEvent::ToolTip) {
506 QHelpEvent * helpEvent = static_cast<QHelpEvent *>(e);
507 if (!lyxrc.use_tooltip)
508 return QAbstractScrollArea::event(e);
509 QPoint pos = helpEvent->pos();
510 if (pos.x() < viewport()->width()) {
511 QString s = toqstr(buffer_view_->toolTip(pos.x(), pos.y()));
512 QToolTip::showText(helpEvent->globalPos(), s);
515 QToolTip::hideText();
517 return QAbstractScrollArea::event(e);
521 void GuiWorkArea::contextMenuEvent(QContextMenuEvent * e)
523 QPoint pos = e->pos();
524 docstring name = buffer_view_->contextMenu(pos.x(), pos.y());
526 QAbstractScrollArea::contextMenuEvent(e);
529 QMenu * menu = guiApp->menus().menu(toqstr(name));
531 QAbstractScrollArea::contextMenuEvent(e);
534 // Position the menu to the right.
535 // FIXME: menu position should be different for RTL text.
536 pos.rx() += menu->width();
537 // FIXME: correct vertical position of the menu WRT screen espace.
538 //pos.ry() += menu->height();
544 void GuiWorkArea::focusInEvent(QFocusEvent * /*event*/)
546 // Repaint the whole screen.
547 // Note: this is different from redraw() as only the backing pixmap
548 // will be redrawn, which is cheap.
549 viewport()->repaint();
551 startBlinkingCursor();
555 void GuiWorkArea::focusOutEvent(QFocusEvent * /*event*/)
557 stopBlinkingCursor();
561 void GuiWorkArea::mousePressEvent(QMouseEvent * e)
563 if (dc_event_.active && dc_event_ == *e) {
564 dc_event_.active = false;
565 FuncRequest cmd(LFUN_MOUSE_TRIPLE, e->x(), e->y(),
566 q_button_state(e->button()));
571 inputContext()->reset();
573 FuncRequest const cmd(LFUN_MOUSE_PRESS, e->x(), e->y(),
574 q_button_state(e->button()));
575 dispatch(cmd, q_key_state(e->modifiers()));
579 void GuiWorkArea::mouseReleaseEvent(QMouseEvent * e)
581 if (synthetic_mouse_event_.timeout.running())
582 synthetic_mouse_event_.timeout.stop();
584 FuncRequest const cmd(LFUN_MOUSE_RELEASE, e->x(), e->y(),
585 q_button_state(e->button()));
590 void GuiWorkArea::mouseMoveEvent(QMouseEvent * e)
592 // we kill the triple click if we move
593 doubleClickTimeout();
594 FuncRequest cmd(LFUN_MOUSE_MOTION, e->x(), e->y(),
595 q_motion_state(e->buttons()));
597 // If we're above or below the work area...
598 if (e->y() <= 20 || e->y() >= viewport()->height() - 20) {
599 // Make sure only a synthetic event can cause a page scroll,
600 // so they come at a steady rate:
602 // _Force_ a scroll up:
605 cmd.y = viewport()->height();
606 // Store the event, to be handled when the timeout expires.
607 synthetic_mouse_event_.cmd = cmd;
609 if (synthetic_mouse_event_.timeout.running())
610 // Discard the event. Note that it _may_ be handled
611 // when the timeout expires if
612 // synthetic_mouse_event_.cmd has not been overwritten.
613 // Ie, when the timeout expires, we handle the
614 // most recent event but discard all others that
615 // occurred after the one used to start the timeout
616 // in the first place.
619 synthetic_mouse_event_.restart_timeout = true;
620 synthetic_mouse_event_.timeout.start();
621 // Fall through to handle this event...
624 } else if (synthetic_mouse_event_.timeout.running()) {
625 // Store the event, to be possibly handled when the timeout
627 // Once the timeout has expired, normal control is returned
628 // to mouseMoveEvent (restart_timeout = false).
629 // This results in a much smoother 'feel' when moving the
630 // mouse back into the work area.
631 synthetic_mouse_event_.cmd = cmd;
632 synthetic_mouse_event_.restart_timeout = false;
636 // Has anything changed on-screen since the last QMouseEvent
638 double const scrollbar_value = verticalScrollBar()->value();
639 if (e->x() != synthetic_mouse_event_.x_old ||
640 e->y() != synthetic_mouse_event_.y_old ||
641 scrollbar_value != synthetic_mouse_event_.scrollbar_value_old) {
642 // Yes it has. Store the params used to check this.
643 synthetic_mouse_event_.x_old = e->x();
644 synthetic_mouse_event_.y_old = e->y();
645 synthetic_mouse_event_.scrollbar_value_old = scrollbar_value;
647 // ... and dispatch the event to the LyX core.
653 void GuiWorkArea::wheelEvent(QWheelEvent * e)
655 // Wheel rotation by one notch results in a delta() of 120 (see
656 // documentation of QWheelEvent)
657 int const lines = qApp->wheelScrollLines() * e->delta() / 120;
658 verticalScrollBar()->setValue(verticalScrollBar()->value() -
659 lines * verticalScrollBar()->singleStep());
660 adjustViewWithScrollBar();
664 void GuiWorkArea::generateSyntheticMouseEvent()
666 // Set things off to generate the _next_ 'pseudo' event.
667 if (synthetic_mouse_event_.restart_timeout)
668 synthetic_mouse_event_.timeout.start();
670 // Has anything changed on-screen since the last timeout signal
672 double const scrollbar_value = verticalScrollBar()->value();
673 if (scrollbar_value != synthetic_mouse_event_.scrollbar_value_old) {
674 // Yes it has. Store the params used to check this.
675 synthetic_mouse_event_.scrollbar_value_old = scrollbar_value;
677 // ... and dispatch the event to the LyX core.
678 dispatch(synthetic_mouse_event_.cmd);
683 void GuiWorkArea::keyPressEvent(QKeyEvent * ev)
685 // do nothing if there are other events
686 // (the auto repeated events come too fast)
687 // \todo FIXME: remove hard coded Qt keys, process the key binding
689 if (XEventsQueued(QX11Info::display(), 0) > 1 && ev->isAutoRepeat()
690 && (Qt::Key_PageDown || Qt::Key_PageUp)) {
691 LYXERR(Debug::KEY, "system is busy: scroll key event ignored");
697 LYXERR(Debug::KEY, " count: " << ev->count()
698 << " text: " << fromqstr(ev->text())
699 << " isAutoRepeat: " << ev->isAutoRepeat() << " key: " << ev->key());
702 setKeySymbol(&sym, ev);
703 processKeySym(sym, q_key_state(ev->modifiers()));
707 void GuiWorkArea::doubleClickTimeout()
709 dc_event_.active = false;
713 void GuiWorkArea::mouseDoubleClickEvent(QMouseEvent * ev)
715 dc_event_ = DoubleClick(ev);
716 QTimer::singleShot(QApplication::doubleClickInterval(), this,
717 SLOT(doubleClickTimeout()));
718 FuncRequest cmd(LFUN_MOUSE_DOUBLE,
720 q_button_state(ev->button()));
725 void GuiWorkArea::resizeEvent(QResizeEvent * ev)
727 QAbstractScrollArea::resizeEvent(ev);
732 void GuiWorkArea::update(int x, int y, int w, int h)
734 viewport()->repaint(x, y, w, h);
738 void GuiWorkArea::paintEvent(QPaintEvent * ev)
740 QRect const rc = ev->rect();
741 // LYXERR(Debug::PAINTING, "paintEvent begin: x: " << rc.x()
742 // << " y: " << rc.y() << " w: " << rc.width() << " h: " << rc.height());
745 verticalScrollBar()->setPageStep(viewport()->height());
746 screen_ = QPixmap(viewport()->width(), viewport()->height());
753 QPainter pain(viewport());
754 pain.drawPixmap(rc, screen_, rc);
759 void GuiWorkArea::updateScreen()
761 GuiPainter pain(&screen_);
762 buffer_view_->draw(pain);
766 void GuiWorkArea::showCursor(int x, int y, int h, CursorShape shape)
768 if (schedule_redraw_) {
769 buffer_view_->updateMetrics();
771 viewport()->update(QRect(0, 0, viewport()->width(), viewport()->height()));
772 schedule_redraw_ = false;
773 // Show the cursor immediately after the update.
779 cursor_->update(x, y, h, shape);
781 viewport()->update(cursor_->rect());
785 void GuiWorkArea::removeCursor()
788 //if (!qApp->focusWidget())
789 viewport()->update(cursor_->rect());
793 void GuiWorkArea::inputMethodEvent(QInputMethodEvent * e)
795 QString const & commit_string = e->commitString();
796 docstring const & preedit_string
797 = qstring_to_ucs4(e->preeditString());
799 if (!commit_string.isEmpty()) {
801 LYXERR(Debug::KEY, "preeditString: " << fromqstr(e->preeditString())
802 << " commitString: " << fromqstr(e->commitString()));
806 // FIXME Iwami 04/01/07: we should take care also of UTF16 surrogates here.
807 for (int i = 0; i != commit_string.size(); ++i) {
808 QKeyEvent ev(QEvent::KeyPress, key, Qt::NoModifier, commit_string[i]);
813 // Hide the cursor during the kana-kanji transformation.
814 if (preedit_string.empty())
815 startBlinkingCursor();
817 stopBlinkingCursor();
819 // last_width : for checking if last preedit string was/wasn't empty.
820 static bool last_width = false;
821 if (!last_width && preedit_string.empty()) {
822 // if last_width is last length of preedit string.
827 GuiPainter pain(&screen_);
828 buffer_view_->updateMetrics();
829 buffer_view_->draw(pain);
830 FontInfo font = buffer_view_->cursor().getFont().fontInfo();
831 FontMetrics const & fm = theFontMetrics(font);
832 int height = fm.maxHeight();
833 int cur_x = cursor_->rect().left();
834 int cur_y = cursor_->rect().bottom();
836 // redraw area of preedit string.
837 update(0, cur_y - height, viewport()->width(),
838 (height + 1) * preedit_lines_);
840 if (preedit_string.empty()) {
848 // att : stores an IM attribute.
849 QList<QInputMethodEvent::Attribute> const & att = e->attributes();
851 // get attributes of input method cursor.
852 // cursor_pos : cursor position in preedit string.
853 size_t cursor_pos = 0;
854 bool cursor_is_visible = false;
855 for (int i = 0; i != att.size(); ++i) {
856 if (att.at(i).type == QInputMethodEvent::Cursor) {
857 cursor_pos = att.at(i).start;
858 cursor_is_visible = att.at(i).length != 0;
863 size_t preedit_length = preedit_string.length();
865 // get position of selection in input method.
866 // FIXME: isn't there a way to do this simplier?
867 // rStart : cursor position in selected string in IM.
869 // rLength : selected string length in IM.
871 if (cursor_pos < preedit_length) {
872 for (int i = 0; i != att.size(); ++i) {
873 if (att.at(i).type == QInputMethodEvent::TextFormat) {
874 if (att.at(i).start <= int(cursor_pos)
875 && int(cursor_pos) < att.at(i).start + att.at(i).length) {
876 rStart = att.at(i).start;
877 rLength = att.at(i).length;
878 if (!cursor_is_visible)
879 cursor_pos += rLength;
890 int const right_margin = rightMargin();
891 Painter::preedit_style ps;
892 // Most often there would be only one line:
894 for (size_t pos = 0; pos != preedit_length; ++pos) {
895 char_type const typed_char = preedit_string[pos];
896 // reset preedit string style
897 ps = Painter::preedit_default;
899 // if we reached the right extremity of the screen, go to next line.
900 if (cur_x + fm.width(typed_char) > viewport()->width() - right_margin) {
901 cur_x = right_margin;
905 // preedit strings are displayed with dashed underline
906 // and partial strings are displayed white on black indicating
907 // that we are in selecting mode in the input method.
908 // FIXME: rLength == preedit_length is not a changing condition
909 // FIXME: should be put out of the loop.
911 && pos < rStart + rLength
912 && !(cursor_pos < rLength && rLength == preedit_length))
913 ps = Painter::preedit_selecting;
915 if (pos == cursor_pos
916 && (cursor_pos < rLength && rLength == preedit_length))
917 ps = Painter::preedit_cursor;
919 // draw one character and update cur_x.
920 cur_x += pain.preeditText(cur_x, cur_y, typed_char, font, ps);
923 // update the preedit string screen area.
924 update(0, cur_y - preedit_lines_*height, viewport()->width(),
925 (height + 1) * preedit_lines_);
927 // Don't forget to accept the event!
932 QVariant GuiWorkArea::inputMethodQuery(Qt::InputMethodQuery query) const
934 QRect cur_r(0,0,0,0);
936 // this is the CJK-specific composition window position.
937 case Qt::ImMicroFocus:
938 cur_r = cursor_->rect();
939 if (preedit_lines_ != 1)
941 cur_r.moveBottom(cur_r.bottom() + cur_r.height() * preedit_lines_);
942 // return lower right of cursor in LyX.
945 return QWidget::inputMethodQuery(query);
950 void GuiWorkArea::updateWindowTitle()
952 docstring maximize_title;
953 docstring minimize_title;
955 Buffer & buf = buffer_view_->buffer();
956 FileName const fileName = buf.fileName();
957 if (!fileName.empty()) {
958 maximize_title = fileName.displayName(30);
959 minimize_title = from_utf8(fileName.onlyFileName());
960 if (!buf.isClean()) {
961 maximize_title += _(" (changed)");
962 minimize_title += char_type('*');
964 if (buf.isReadonly())
965 maximize_title += _(" (read only)");
968 QString title = windowTitle();
969 QString new_title = toqstr(maximize_title);
970 if (title == new_title)
973 QWidget::setWindowTitle(new_title);
974 QWidget::setWindowIconText(toqstr(minimize_title));
979 void GuiWorkArea::setReadOnly(bool)
982 if (this == lyx_view_->currentWorkArea())
983 lyx_view_->updateBufferDependent(false);
987 ////////////////////////////////////////////////////////////////////
991 ////////////////////////////////////////////////////////////////////
993 TabWorkArea::TabWorkArea(QWidget * parent) : QTabWidget(parent)
995 QPalette pal = palette();
996 pal.setColor(QPalette::Active, QPalette::Button,
997 pal.color(QPalette::Active, QPalette::Window));
998 pal.setColor(QPalette::Disabled, QPalette::Button,
999 pal.color(QPalette::Disabled, QPalette::Window));
1000 pal.setColor(QPalette::Inactive, QPalette::Button,
1001 pal.color(QPalette::Inactive, QPalette::Window));
1003 QToolButton * closeTabButton = new QToolButton(this);
1004 closeTabButton->setPalette(pal);
1005 closeTabButton->setIcon(QIcon(":/images/closetab.png"));
1006 closeTabButton->setText("Close");
1007 closeTabButton->setAutoRaise(true);
1008 closeTabButton->setCursor(Qt::ArrowCursor);
1009 closeTabButton->setToolTip(tr("Close tab"));
1010 closeTabButton->setEnabled(true);
1012 QObject::connect(this, SIGNAL(currentChanged(int)),
1013 this, SLOT(on_currentTabChanged(int)));
1014 QObject::connect(closeTabButton, SIGNAL(clicked()),
1015 this, SLOT(closeCurrentTab()));
1017 setCornerWidget(closeTabButton);
1018 setUsesScrollButtons(true);
1022 void TabWorkArea::showBar(bool show)
1024 tabBar()->setEnabled(show);
1025 tabBar()->setVisible(show);
1029 GuiWorkArea * TabWorkArea::currentWorkArea()
1034 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(currentWidget());
1040 GuiWorkArea * TabWorkArea::workArea(Buffer & buffer)
1042 for (int i = 0; i != count(); ++i) {
1043 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(i));
1045 if (&wa->bufferView().buffer() == &buffer)
1052 void TabWorkArea::closeAll()
1055 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(0));
1063 bool TabWorkArea::setCurrentWorkArea(GuiWorkArea * work_area)
1065 BOOST_ASSERT(work_area);
1066 int index = indexOf(work_area);
1070 if (index == currentIndex())
1071 // Make sure the work area is up to date.
1072 on_currentTabChanged(index);
1074 // Switch to the work area.
1075 setCurrentIndex(index);
1076 work_area->setFocus();
1082 GuiWorkArea * TabWorkArea::addWorkArea(Buffer & buffer, GuiView & view)
1084 GuiWorkArea * wa = new GuiWorkArea(buffer, view);
1085 wa->setUpdatesEnabled(false);
1086 // Hide tabbar if there's no tab (avoid a resize and a flashing tabbar
1087 // when hiding it again below).
1088 showBar(count() > 0);
1089 addTab(wa, wa->windowTitle());
1090 QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
1091 this, SLOT(updateTabText(GuiWorkArea *)));
1092 // Hide tabbar if there's only one tab.
1093 showBar(count() > 1);
1098 bool TabWorkArea::removeWorkArea(GuiWorkArea * work_area)
1100 BOOST_ASSERT(work_area);
1101 int index = indexOf(work_area);
1105 work_area->setUpdatesEnabled(false);
1110 // make sure the next work area is enabled.
1111 currentWidget()->setUpdatesEnabled(true);
1112 // Hide tabbar if there's only one tab.
1113 showBar(count() > 1);
1119 void TabWorkArea::on_currentTabChanged(int i)
1121 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(i));
1123 BufferView & bv = wa->bufferView();
1124 bv.cursor().fixIfBroken();
1126 wa->setUpdatesEnabled(true);
1130 currentWorkAreaChanged(wa);
1132 LYXERR(Debug::GUI, "currentTabChanged " << i
1133 << "File" << bv.buffer().absFileName());
1137 void TabWorkArea::closeCurrentTab()
1139 lyx::dispatch(FuncRequest(LFUN_BUFFER_CLOSE));
1143 void TabWorkArea::updateTabText(GuiWorkArea * wa)
1145 int const i = indexOf(wa);
1148 setTabText(i, wa->windowTitle());
1151 } // namespace frontend
1154 #include "GuiWorkArea_moc.cpp"