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 // PageStep only depends on the viewport height.
235 verticalScrollBar()->setPageStep(viewport()->height());
237 LYXERR(Debug::GUI, "viewport width: " << viewport()->width()
238 << " viewport height: " << viewport()->height());
240 // Enables input methods for asian languages.
241 // Must be set when creating custom text editing widgets.
242 setAttribute(Qt::WA_InputMethodEnabled, true);
247 GuiWorkArea::~GuiWorkArea()
249 buffer_view_->buffer().workAreaManager().remove(this);
255 void GuiWorkArea::close()
257 lyx_view_->removeWorkArea(this);
261 BufferView & GuiWorkArea::bufferView()
263 return *buffer_view_;
267 BufferView const & GuiWorkArea::bufferView() const
269 return *buffer_view_;
273 void GuiWorkArea::stopBlinkingCursor()
275 cursor_timeout_.stop();
280 void GuiWorkArea::startBlinkingCursor()
283 cursor_timeout_.start();
287 void GuiWorkArea::redraw()
290 // No need to redraw in this case.
293 // No need to do anything if this is the current view. The BufferView
294 // metrics are already up to date.
295 if (lyx_view_ != guiApp->currentView()) {
296 // FIXME: it would be nice to optimize for the off-screen case.
297 buffer_view_->updateMetrics();
298 buffer_view_->cursor().fixIfBroken();
301 // update cursor position, because otherwise it has to wait until
302 // the blinking interval is over
303 if (cursor_visible_) {
308 LYXERR(Debug::WORKAREA, "WorkArea::redraw screen");
310 update(0, 0, viewport()->width(), viewport()->height());
312 /// \warning: scrollbar updating *must* be done after the BufferView is drawn
313 /// because \c BufferView::updateScrollbar() is called in \c BufferView::draw().
315 lyx_view_->updateStatusBar();
317 if (lyxerr.debugging(Debug::WORKAREA))
318 buffer_view_->coordCache().dump();
322 void GuiWorkArea::processKeySym(KeySymbol const & key, KeyModifier mod)
324 // In order to avoid bad surprise in the middle of an operation,
325 // we better stop the blinking cursor.
326 stopBlinkingCursor();
328 theLyXFunc().setLyXView(lyx_view_);
329 theLyXFunc().processKeySym(key, mod);
333 void GuiWorkArea::dispatch(FuncRequest const & cmd0, KeyModifier mod)
336 if (cmd0.action == LFUN_FILE_OPEN) {
337 lyx_view_->dispatch(cmd0);
341 theLyXFunc().setLyXView(lyx_view_);
345 if (cmd0.action == LFUN_MOUSE_PRESS) {
346 if (mod == ShiftModifier)
347 cmd = FuncRequest(cmd0, "region-select");
348 else if (mod == ControlModifier)
349 cmd = FuncRequest(cmd0, "paragraph-select");
356 // In order to avoid bad surprise in the middle of an operation, we better stop
357 // the blinking cursor.
358 if (!(cmd.action == LFUN_MOUSE_MOTION
359 && cmd.button() == mouse_button::none))
360 stopBlinkingCursor();
362 buffer_view_->mouseEventDispatch(cmd);
364 // Skip these when selecting
365 if (cmd.action != LFUN_MOUSE_MOTION) {
366 lyx_view_->updateLayoutList();
367 lyx_view_->updateToolbars();
370 // GUI tweaks except with mouse motion with no button pressed.
371 if (!(cmd.action == LFUN_MOUSE_MOTION
372 && cmd.button() == mouse_button::none)) {
373 // Slight hack: this is only called currently when we
374 // clicked somewhere, so we force through the display
375 // of the new status here.
376 lyx_view_->clearMessage();
378 // Show the cursor immediately after any operation.
379 startBlinkingCursor();
384 void GuiWorkArea::resizeBufferView()
386 // WARNING: Please don't put any code that will trigger a repaint here!
387 // We are already inside a paint event.
388 lyx_view_->setBusy(true);
389 buffer_view_->resize(viewport()->width(), viewport()->height());
390 lyx_view_->updateLayoutList();
391 lyx_view_->setBusy(false);
392 need_resize_ = false;
396 void GuiWorkArea::showCursor()
401 CursorShape shape = BAR_SHAPE;
403 Font const & realfont = buffer_view_->cursor().real_current_font;
404 BufferParams const & bp = buffer_view_->buffer().params();
405 bool const samelang = realfont.language() == bp.language;
406 bool const isrtl = realfont.isVisibleRightToLeft();
408 if (!samelang || isrtl != bp.language->rightToLeft()) {
411 shape = REVERSED_L_SHAPE;
414 // The ERT language hack needs fixing up
415 if (realfont.language() == latex_language)
418 Font const font = buffer_view_->cursor().getFont();
419 FontMetrics const & fm = theFontMetrics(font);
420 int const asc = fm.maxAscent();
421 int const des = fm.maxDescent();
425 buffer_view_->cursor().getPos(x, y);
428 // if it doesn't touch the screen, don't try to show it
429 if (y + h < 0 || y >= viewport()->height())
432 cursor_visible_ = true;
433 showCursor(x, y, h, shape);
437 void GuiWorkArea::hideCursor()
439 if (!cursor_visible_)
442 cursor_visible_ = false;
447 void GuiWorkArea::toggleCursor()
454 // Use this opportunity to deal with any child processes that
455 // have finished but are waiting to communicate this fact
456 // to the rest of LyX.
457 ForkedCallsController::handleCompletedProcesses();
461 void GuiWorkArea::updateScrollbar()
463 verticalScrollBar()->setTracking(false);
465 ScrollbarParameters const & scroll_ = buffer_view_->scrollbarParameters();
466 verticalScrollBar()->setRange(scroll_.min, scroll_.max);
467 verticalScrollBar()->setPageStep(scroll_.page_step);
468 verticalScrollBar()->setSingleStep(scroll_.single_step);
469 verticalScrollBar()->setValue(scroll_.position);
470 // verticalScrollBar()->setSliderPosition(scroll_.position);
472 verticalScrollBar()->setTracking(true);
476 void GuiWorkArea::adjustViewWithScrollBar(int action)
478 stopBlinkingCursor();
479 if (action == QAbstractSlider::SliderPageStepAdd)
480 buffer_view_->scrollDown(viewport()->height());
481 else if (action == QAbstractSlider::SliderPageStepSub)
482 buffer_view_->scrollUp(viewport()->height());
484 buffer_view_->scrollDocView(verticalScrollBar()->sliderPosition());
486 if (lyxrc.cursor_follows_scrollbar) {
487 buffer_view_->setCursorFromScrollbar();
488 lyx_view_->updateLayoutList();
490 // Show the cursor immediately after any operation.
491 startBlinkingCursor();
492 QApplication::syncX();
496 bool GuiWorkArea::event(QEvent * e)
499 case QEvent::ToolTip: {
500 QHelpEvent * helpEvent = static_cast<QHelpEvent *>(e);
501 if (lyxrc.use_tooltip) {
502 QPoint pos = helpEvent->pos();
503 if (pos.x() < viewport()->width()) {
504 QString s = toqstr(buffer_view_->toolTip(pos.x(), pos.y()));
505 QToolTip::showText(helpEvent->globalPos(), s);
508 QToolTip::hideText();
510 // Don't forget to accept the event!
515 case QEvent::ShortcutOverride: {
516 // We catch this event in order to catch the Tab or Shift+Tab key press
517 // which are otherwise reserved to focus switching between controls
519 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
520 if (ke->key() != Qt::Key_Tab && ke->key() != Qt::Key_Backtab)
521 return QAbstractScrollArea::event(e);
527 return QAbstractScrollArea::event(e);
533 void GuiWorkArea::contextMenuEvent(QContextMenuEvent * e)
535 QPoint pos = e->pos();
536 docstring name = buffer_view_->contextMenu(pos.x(), pos.y());
538 QAbstractScrollArea::contextMenuEvent(e);
541 QMenu * menu = guiApp->menus().menu(toqstr(name));
543 QAbstractScrollArea::contextMenuEvent(e);
546 // Position the menu to the right.
547 // FIXME: menu position should be different for RTL text.
548 pos.rx() += menu->width();
549 // FIXME: correct vertical position of the menu WRT screen espace.
550 //pos.ry() += menu->height();
556 void GuiWorkArea::focusInEvent(QFocusEvent * /*event*/)
558 // Repaint the whole screen.
559 // Note: this is different from redraw() as only the backing pixmap
560 // will be redrawn, which is cheap.
561 viewport()->repaint();
563 startBlinkingCursor();
567 void GuiWorkArea::focusOutEvent(QFocusEvent * /*event*/)
569 stopBlinkingCursor();
573 void GuiWorkArea::mousePressEvent(QMouseEvent * e)
575 if (dc_event_.active && dc_event_ == *e) {
576 dc_event_.active = false;
577 FuncRequest cmd(LFUN_MOUSE_TRIPLE, e->x(), e->y(),
578 q_button_state(e->button()));
583 inputContext()->reset();
585 FuncRequest const cmd(LFUN_MOUSE_PRESS, e->x(), e->y(),
586 q_button_state(e->button()));
587 dispatch(cmd, q_key_state(e->modifiers()));
591 void GuiWorkArea::mouseReleaseEvent(QMouseEvent * e)
593 if (synthetic_mouse_event_.timeout.running())
594 synthetic_mouse_event_.timeout.stop();
596 FuncRequest const cmd(LFUN_MOUSE_RELEASE, e->x(), e->y(),
597 q_button_state(e->button()));
602 void GuiWorkArea::mouseMoveEvent(QMouseEvent * e)
604 // we kill the triple click if we move
605 doubleClickTimeout();
606 FuncRequest cmd(LFUN_MOUSE_MOTION, e->x(), e->y(),
607 q_motion_state(e->buttons()));
609 // If we're above or below the work area...
610 if (e->y() <= 20 || e->y() >= viewport()->height() - 20) {
611 // Make sure only a synthetic event can cause a page scroll,
612 // so they come at a steady rate:
614 // _Force_ a scroll up:
617 cmd.y = viewport()->height();
618 // Store the event, to be handled when the timeout expires.
619 synthetic_mouse_event_.cmd = cmd;
621 if (synthetic_mouse_event_.timeout.running())
622 // Discard the event. Note that it _may_ be handled
623 // when the timeout expires if
624 // synthetic_mouse_event_.cmd has not been overwritten.
625 // Ie, when the timeout expires, we handle the
626 // most recent event but discard all others that
627 // occurred after the one used to start the timeout
628 // in the first place.
631 synthetic_mouse_event_.restart_timeout = true;
632 synthetic_mouse_event_.timeout.start();
633 // Fall through to handle this event...
636 } else if (synthetic_mouse_event_.timeout.running()) {
637 // Store the event, to be possibly handled when the timeout
639 // Once the timeout has expired, normal control is returned
640 // to mouseMoveEvent (restart_timeout = false).
641 // This results in a much smoother 'feel' when moving the
642 // mouse back into the work area.
643 synthetic_mouse_event_.cmd = cmd;
644 synthetic_mouse_event_.restart_timeout = false;
648 // Has anything changed on-screen since the last QMouseEvent
650 double const scrollbar_value = verticalScrollBar()->value();
651 if (e->x() != synthetic_mouse_event_.x_old ||
652 e->y() != synthetic_mouse_event_.y_old ||
653 scrollbar_value != synthetic_mouse_event_.scrollbar_value_old) {
654 // Yes it has. Store the params used to check this.
655 synthetic_mouse_event_.x_old = e->x();
656 synthetic_mouse_event_.y_old = e->y();
657 synthetic_mouse_event_.scrollbar_value_old = scrollbar_value;
659 // ... and dispatch the event to the LyX core.
665 void GuiWorkArea::wheelEvent(QWheelEvent * e)
667 // Wheel rotation by one notch results in a delta() of 120 (see
668 // documentation of QWheelEvent)
669 int const lines = qApp->wheelScrollLines() * e->delta() / 120;
670 verticalScrollBar()->setValue(verticalScrollBar()->value() -
671 lines * verticalScrollBar()->singleStep());
672 adjustViewWithScrollBar();
676 void GuiWorkArea::generateSyntheticMouseEvent()
678 // Set things off to generate the _next_ 'pseudo' event.
679 if (synthetic_mouse_event_.restart_timeout)
680 synthetic_mouse_event_.timeout.start();
682 // Has anything changed on-screen since the last timeout signal
684 double const scrollbar_value = verticalScrollBar()->value();
685 if (scrollbar_value != synthetic_mouse_event_.scrollbar_value_old) {
686 // Yes it has. Store the params used to check this.
687 synthetic_mouse_event_.scrollbar_value_old = scrollbar_value;
689 // ... and dispatch the event to the LyX core.
690 dispatch(synthetic_mouse_event_.cmd);
695 void GuiWorkArea::keyPressEvent(QKeyEvent * ev)
697 // do nothing if there are other events
698 // (the auto repeated events come too fast)
699 // \todo FIXME: remove hard coded Qt keys, process the key binding
701 if (XEventsQueued(QX11Info::display(), 0) > 1 && ev->isAutoRepeat()
702 && (Qt::Key_PageDown || Qt::Key_PageUp)) {
703 LYXERR(Debug::KEY, "system is busy: scroll key event ignored");
709 LYXERR(Debug::KEY, " count: " << ev->count()
710 << " text: " << fromqstr(ev->text())
711 << " isAutoRepeat: " << ev->isAutoRepeat() << " key: " << ev->key());
714 setKeySymbol(&sym, ev);
715 processKeySym(sym, q_key_state(ev->modifiers()));
720 void GuiWorkArea::doubleClickTimeout()
722 dc_event_.active = false;
726 void GuiWorkArea::mouseDoubleClickEvent(QMouseEvent * ev)
728 dc_event_ = DoubleClick(ev);
729 QTimer::singleShot(QApplication::doubleClickInterval(), this,
730 SLOT(doubleClickTimeout()));
731 FuncRequest cmd(LFUN_MOUSE_DOUBLE,
733 q_button_state(ev->button()));
738 void GuiWorkArea::resizeEvent(QResizeEvent * ev)
740 QAbstractScrollArea::resizeEvent(ev);
745 void GuiWorkArea::update(int x, int y, int w, int h)
747 viewport()->repaint(x, y, w, h);
751 void GuiWorkArea::paintEvent(QPaintEvent * ev)
753 QRect const rc = ev->rect();
754 // LYXERR(Debug::PAINTING, "paintEvent begin: x: " << rc.x()
755 // << " y: " << rc.y() << " w: " << rc.width() << " h: " << rc.height());
758 verticalScrollBar()->setPageStep(viewport()->height());
759 screen_ = QPixmap(viewport()->width(), viewport()->height());
766 QPainter pain(viewport());
767 pain.drawPixmap(rc, screen_, rc);
772 void GuiWorkArea::updateScreen()
774 GuiPainter pain(&screen_);
775 buffer_view_->draw(pain);
779 void GuiWorkArea::showCursor(int x, int y, int h, CursorShape shape)
781 if (schedule_redraw_) {
782 buffer_view_->updateMetrics();
784 viewport()->update(QRect(0, 0, viewport()->width(), viewport()->height()));
785 schedule_redraw_ = false;
786 // Show the cursor immediately after the update.
792 cursor_->update(x, y, h, shape);
794 viewport()->update(cursor_->rect());
798 void GuiWorkArea::removeCursor()
801 //if (!qApp->focusWidget())
802 viewport()->update(cursor_->rect());
806 void GuiWorkArea::inputMethodEvent(QInputMethodEvent * e)
808 QString const & commit_string = e->commitString();
809 docstring const & preedit_string
810 = qstring_to_ucs4(e->preeditString());
812 if (!commit_string.isEmpty()) {
814 LYXERR(Debug::KEY, "preeditString: " << fromqstr(e->preeditString())
815 << " commitString: " << fromqstr(e->commitString()));
819 // FIXME Iwami 04/01/07: we should take care also of UTF16 surrogates here.
820 for (int i = 0; i != commit_string.size(); ++i) {
821 QKeyEvent ev(QEvent::KeyPress, key, Qt::NoModifier, commit_string[i]);
826 // Hide the cursor during the kana-kanji transformation.
827 if (preedit_string.empty())
828 startBlinkingCursor();
830 stopBlinkingCursor();
832 // last_width : for checking if last preedit string was/wasn't empty.
833 static bool last_width = false;
834 if (!last_width && preedit_string.empty()) {
835 // if last_width is last length of preedit string.
840 GuiPainter pain(&screen_);
841 buffer_view_->updateMetrics();
842 buffer_view_->draw(pain);
843 FontInfo font = buffer_view_->cursor().getFont().fontInfo();
844 FontMetrics const & fm = theFontMetrics(font);
845 int height = fm.maxHeight();
846 int cur_x = cursor_->rect().left();
847 int cur_y = cursor_->rect().bottom();
849 // redraw area of preedit string.
850 update(0, cur_y - height, viewport()->width(),
851 (height + 1) * preedit_lines_);
853 if (preedit_string.empty()) {
861 // att : stores an IM attribute.
862 QList<QInputMethodEvent::Attribute> const & att = e->attributes();
864 // get attributes of input method cursor.
865 // cursor_pos : cursor position in preedit string.
866 size_t cursor_pos = 0;
867 bool cursor_is_visible = false;
868 for (int i = 0; i != att.size(); ++i) {
869 if (att.at(i).type == QInputMethodEvent::Cursor) {
870 cursor_pos = att.at(i).start;
871 cursor_is_visible = att.at(i).length != 0;
876 size_t preedit_length = preedit_string.length();
878 // get position of selection in input method.
879 // FIXME: isn't there a way to do this simplier?
880 // rStart : cursor position in selected string in IM.
882 // rLength : selected string length in IM.
884 if (cursor_pos < preedit_length) {
885 for (int i = 0; i != att.size(); ++i) {
886 if (att.at(i).type == QInputMethodEvent::TextFormat) {
887 if (att.at(i).start <= int(cursor_pos)
888 && int(cursor_pos) < att.at(i).start + att.at(i).length) {
889 rStart = att.at(i).start;
890 rLength = att.at(i).length;
891 if (!cursor_is_visible)
892 cursor_pos += rLength;
903 int const right_margin = rightMargin();
904 Painter::preedit_style ps;
905 // Most often there would be only one line:
907 for (size_t pos = 0; pos != preedit_length; ++pos) {
908 char_type const typed_char = preedit_string[pos];
909 // reset preedit string style
910 ps = Painter::preedit_default;
912 // if we reached the right extremity of the screen, go to next line.
913 if (cur_x + fm.width(typed_char) > viewport()->width() - right_margin) {
914 cur_x = right_margin;
918 // preedit strings are displayed with dashed underline
919 // and partial strings are displayed white on black indicating
920 // that we are in selecting mode in the input method.
921 // FIXME: rLength == preedit_length is not a changing condition
922 // FIXME: should be put out of the loop.
924 && pos < rStart + rLength
925 && !(cursor_pos < rLength && rLength == preedit_length))
926 ps = Painter::preedit_selecting;
928 if (pos == cursor_pos
929 && (cursor_pos < rLength && rLength == preedit_length))
930 ps = Painter::preedit_cursor;
932 // draw one character and update cur_x.
933 cur_x += pain.preeditText(cur_x, cur_y, typed_char, font, ps);
936 // update the preedit string screen area.
937 update(0, cur_y - preedit_lines_*height, viewport()->width(),
938 (height + 1) * preedit_lines_);
940 // Don't forget to accept the event!
945 QVariant GuiWorkArea::inputMethodQuery(Qt::InputMethodQuery query) const
947 QRect cur_r(0,0,0,0);
949 // this is the CJK-specific composition window position.
950 case Qt::ImMicroFocus:
951 cur_r = cursor_->rect();
952 if (preedit_lines_ != 1)
954 cur_r.moveBottom(cur_r.bottom() + cur_r.height() * preedit_lines_);
955 // return lower right of cursor in LyX.
958 return QWidget::inputMethodQuery(query);
963 void GuiWorkArea::updateWindowTitle()
965 docstring maximize_title;
966 docstring minimize_title;
968 Buffer & buf = buffer_view_->buffer();
969 FileName const fileName = buf.fileName();
970 if (!fileName.empty()) {
971 maximize_title = fileName.displayName(30);
972 minimize_title = from_utf8(fileName.onlyFileName());
973 if (!buf.isClean()) {
974 maximize_title += _(" (changed)");
975 minimize_title += char_type('*');
977 if (buf.isReadonly())
978 maximize_title += _(" (read only)");
981 QString title = windowTitle();
982 QString new_title = toqstr(maximize_title);
983 if (title == new_title)
986 QWidget::setWindowTitle(new_title);
987 QWidget::setWindowIconText(toqstr(minimize_title));
992 void GuiWorkArea::setReadOnly(bool)
995 if (this == lyx_view_->currentWorkArea())
996 lyx_view_->updateBufferDependent(false);
1000 ////////////////////////////////////////////////////////////////////
1004 ////////////////////////////////////////////////////////////////////
1006 TabWorkArea::TabWorkArea(QWidget * parent) : QTabWidget(parent)
1008 QPalette pal = palette();
1009 pal.setColor(QPalette::Active, QPalette::Button,
1010 pal.color(QPalette::Active, QPalette::Window));
1011 pal.setColor(QPalette::Disabled, QPalette::Button,
1012 pal.color(QPalette::Disabled, QPalette::Window));
1013 pal.setColor(QPalette::Inactive, QPalette::Button,
1014 pal.color(QPalette::Inactive, QPalette::Window));
1016 QToolButton * closeTabButton = new QToolButton(this);
1017 closeTabButton->setPalette(pal);
1018 closeTabButton->setIcon(QIcon(":/images/closetab.png"));
1019 closeTabButton->setText("Close");
1020 closeTabButton->setAutoRaise(true);
1021 closeTabButton->setCursor(Qt::ArrowCursor);
1022 closeTabButton->setToolTip(tr("Close tab"));
1023 closeTabButton->setEnabled(true);
1025 QObject::connect(this, SIGNAL(currentChanged(int)),
1026 this, SLOT(on_currentTabChanged(int)));
1027 QObject::connect(closeTabButton, SIGNAL(clicked()),
1028 this, SLOT(closeCurrentTab()));
1030 setCornerWidget(closeTabButton);
1031 setUsesScrollButtons(true);
1035 void TabWorkArea::showBar(bool show)
1037 tabBar()->setEnabled(show);
1038 tabBar()->setVisible(show);
1042 GuiWorkArea * TabWorkArea::currentWorkArea()
1047 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(currentWidget());
1053 GuiWorkArea * TabWorkArea::workArea(Buffer & buffer)
1055 for (int i = 0; i != count(); ++i) {
1056 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(i));
1058 if (&wa->bufferView().buffer() == &buffer)
1065 void TabWorkArea::closeAll()
1068 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(0));
1076 bool TabWorkArea::setCurrentWorkArea(GuiWorkArea * work_area)
1078 BOOST_ASSERT(work_area);
1079 int index = indexOf(work_area);
1083 if (index == currentIndex())
1084 // Make sure the work area is up to date.
1085 on_currentTabChanged(index);
1087 // Switch to the work area.
1088 setCurrentIndex(index);
1089 work_area->setFocus();
1095 GuiWorkArea * TabWorkArea::addWorkArea(Buffer & buffer, GuiView & view)
1097 GuiWorkArea * wa = new GuiWorkArea(buffer, view);
1098 wa->setUpdatesEnabled(false);
1099 // Hide tabbar if there's no tab (avoid a resize and a flashing tabbar
1100 // when hiding it again below).
1101 showBar(count() > 0);
1102 addTab(wa, wa->windowTitle());
1103 QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
1104 this, SLOT(updateTabText(GuiWorkArea *)));
1105 // Hide tabbar if there's only one tab.
1106 showBar(count() > 1);
1111 bool TabWorkArea::removeWorkArea(GuiWorkArea * work_area)
1113 BOOST_ASSERT(work_area);
1114 int index = indexOf(work_area);
1118 work_area->setUpdatesEnabled(false);
1123 // make sure the next work area is enabled.
1124 currentWidget()->setUpdatesEnabled(true);
1125 // Hide tabbar if there's only one tab.
1126 showBar(count() > 1);
1132 void TabWorkArea::on_currentTabChanged(int i)
1134 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(i));
1136 BufferView & bv = wa->bufferView();
1137 bv.cursor().fixIfBroken();
1139 wa->setUpdatesEnabled(true);
1143 currentWorkAreaChanged(wa);
1145 LYXERR(Debug::GUI, "currentTabChanged " << i
1146 << "File" << bv.buffer().absFileName());
1150 void TabWorkArea::closeCurrentTab()
1152 lyx::dispatch(FuncRequest(LFUN_BUFFER_CLOSE));
1156 void TabWorkArea::updateTabText(GuiWorkArea * wa)
1158 int const i = indexOf(wa);
1161 setTabText(i, wa->windowTitle());
1164 } // namespace frontend
1167 #include "GuiWorkArea_moc.cpp"