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 QPoint pos = helpEvent->pos();
508 if (pos.x() < viewport()->width()) {
509 QString s = toqstr(buffer_view_->toolTip(pos.x(), pos.y()));
510 QToolTip::showText(helpEvent->globalPos(), s);
513 QToolTip::hideText();
515 return QAbstractScrollArea::event(e);
519 void GuiWorkArea::contextMenuEvent(QContextMenuEvent * e)
521 QPoint pos = e->pos();
522 Menu const & menu = buffer_view_->contextMenu(pos.x(), pos.y());
523 LYXERR(Debug::GUI, "context menu resquested: " << menu.name());
525 // FIXME: do something with GuiPopupMenu and MenuBackend.
526 // Some cleanups of GuiPopupMenu and GuiMenubar are needed
528 QAbstractScrollArea::contextMenuEvent(e);
532 void GuiWorkArea::focusInEvent(QFocusEvent * /*event*/)
534 // Repaint the whole screen.
535 // Note: this is different from redraw() as only the backing pixmap
536 // will be redrawn, which is cheap.
537 viewport()->repaint();
539 startBlinkingCursor();
543 void GuiWorkArea::focusOutEvent(QFocusEvent * /*event*/)
545 stopBlinkingCursor();
549 void GuiWorkArea::mousePressEvent(QMouseEvent * e)
551 if (dc_event_.active && dc_event_ == *e) {
552 dc_event_.active = false;
553 FuncRequest cmd(LFUN_MOUSE_TRIPLE, e->x(), e->y(),
554 q_button_state(e->button()));
559 inputContext()->reset();
561 FuncRequest const cmd(LFUN_MOUSE_PRESS, e->x(), e->y(),
562 q_button_state(e->button()));
563 dispatch(cmd, q_key_state(e->modifiers()));
567 void GuiWorkArea::mouseReleaseEvent(QMouseEvent * e)
569 if (synthetic_mouse_event_.timeout.running())
570 synthetic_mouse_event_.timeout.stop();
572 FuncRequest const cmd(LFUN_MOUSE_RELEASE, e->x(), e->y(),
573 q_button_state(e->button()));
578 void GuiWorkArea::mouseMoveEvent(QMouseEvent * e)
580 // we kill the triple click if we move
581 doubleClickTimeout();
582 FuncRequest cmd(LFUN_MOUSE_MOTION, e->x(), e->y(),
583 q_motion_state(e->buttons()));
585 // If we're above or below the work area...
586 if (e->y() <= 20 || e->y() >= viewport()->height() - 20) {
587 // Make sure only a synthetic event can cause a page scroll,
588 // so they come at a steady rate:
590 // _Force_ a scroll up:
593 cmd.y = viewport()->height();
594 // Store the event, to be handled when the timeout expires.
595 synthetic_mouse_event_.cmd = cmd;
597 if (synthetic_mouse_event_.timeout.running())
598 // Discard the event. Note that it _may_ be handled
599 // when the timeout expires if
600 // synthetic_mouse_event_.cmd has not been overwritten.
601 // Ie, when the timeout expires, we handle the
602 // most recent event but discard all others that
603 // occurred after the one used to start the timeout
604 // in the first place.
607 synthetic_mouse_event_.restart_timeout = true;
608 synthetic_mouse_event_.timeout.start();
609 // Fall through to handle this event...
612 } else if (synthetic_mouse_event_.timeout.running()) {
613 // Store the event, to be possibly handled when the timeout
615 // Once the timeout has expired, normal control is returned
616 // to mouseMoveEvent (restart_timeout = false).
617 // This results in a much smoother 'feel' when moving the
618 // mouse back into the work area.
619 synthetic_mouse_event_.cmd = cmd;
620 synthetic_mouse_event_.restart_timeout = false;
624 // Has anything changed on-screen since the last QMouseEvent
626 double const scrollbar_value = verticalScrollBar()->value();
627 if (e->x() != synthetic_mouse_event_.x_old ||
628 e->y() != synthetic_mouse_event_.y_old ||
629 scrollbar_value != synthetic_mouse_event_.scrollbar_value_old) {
630 // Yes it has. Store the params used to check this.
631 synthetic_mouse_event_.x_old = e->x();
632 synthetic_mouse_event_.y_old = e->y();
633 synthetic_mouse_event_.scrollbar_value_old = scrollbar_value;
635 // ... and dispatch the event to the LyX core.
641 void GuiWorkArea::wheelEvent(QWheelEvent * e)
643 // Wheel rotation by one notch results in a delta() of 120 (see
644 // documentation of QWheelEvent)
645 int const lines = qApp->wheelScrollLines() * e->delta() / 120;
646 verticalScrollBar()->setValue(verticalScrollBar()->value() -
647 lines * verticalScrollBar()->singleStep());
648 adjustViewWithScrollBar();
652 void GuiWorkArea::generateSyntheticMouseEvent()
654 // Set things off to generate the _next_ 'pseudo' event.
655 if (synthetic_mouse_event_.restart_timeout)
656 synthetic_mouse_event_.timeout.start();
658 // Has anything changed on-screen since the last timeout signal
660 double const scrollbar_value = verticalScrollBar()->value();
661 if (scrollbar_value != synthetic_mouse_event_.scrollbar_value_old) {
662 // Yes it has. Store the params used to check this.
663 synthetic_mouse_event_.scrollbar_value_old = scrollbar_value;
665 // ... and dispatch the event to the LyX core.
666 dispatch(synthetic_mouse_event_.cmd);
671 void GuiWorkArea::keyPressEvent(QKeyEvent * ev)
673 // do nothing if there are other events
674 // (the auto repeated events come too fast)
675 // \todo FIXME: remove hard coded Qt keys, process the key binding
677 if (XEventsQueued(QX11Info::display(), 0) > 1 && ev->isAutoRepeat()
678 && (Qt::Key_PageDown || Qt::Key_PageUp)) {
679 LYXERR(Debug::KEY, "system is busy: scroll key event ignored");
685 LYXERR(Debug::KEY, " count: " << ev->count()
686 << " text: " << fromqstr(ev->text())
687 << " isAutoRepeat: " << ev->isAutoRepeat() << " key: " << ev->key());
690 setKeySymbol(&sym, ev);
691 processKeySym(sym, q_key_state(ev->modifiers()));
695 void GuiWorkArea::doubleClickTimeout()
697 dc_event_.active = false;
701 void GuiWorkArea::mouseDoubleClickEvent(QMouseEvent * ev)
703 dc_event_ = DoubleClick(ev);
704 QTimer::singleShot(QApplication::doubleClickInterval(), this,
705 SLOT(doubleClickTimeout()));
706 FuncRequest cmd(LFUN_MOUSE_DOUBLE,
708 q_button_state(ev->button()));
713 void GuiWorkArea::resizeEvent(QResizeEvent * ev)
715 QAbstractScrollArea::resizeEvent(ev);
720 void GuiWorkArea::update(int x, int y, int w, int h)
722 viewport()->repaint(x, y, w, h);
726 void GuiWorkArea::paintEvent(QPaintEvent * ev)
728 QRect const rc = ev->rect();
729 // LYXERR(Debug::PAINTING, "paintEvent begin: x: " << rc.x()
730 // << " y: " << rc.y() << " w: " << rc.width() << " h: " << rc.height());
733 verticalScrollBar()->setPageStep(viewport()->height());
734 screen_ = QPixmap(viewport()->width(), viewport()->height());
741 QPainter pain(viewport());
742 pain.drawPixmap(rc, screen_, rc);
747 void GuiWorkArea::updateScreen()
749 GuiPainter pain(&screen_);
750 buffer_view_->draw(pain);
754 void GuiWorkArea::showCursor(int x, int y, int h, CursorShape shape)
756 if (schedule_redraw_) {
757 buffer_view_->updateMetrics();
759 viewport()->update(QRect(0, 0, viewport()->width(), viewport()->height()));
760 schedule_redraw_ = false;
761 // Show the cursor immediately after the update.
767 cursor_->update(x, y, h, shape);
769 viewport()->update(cursor_->rect());
773 void GuiWorkArea::removeCursor()
776 //if (!qApp->focusWidget())
777 viewport()->update(cursor_->rect());
781 void GuiWorkArea::inputMethodEvent(QInputMethodEvent * e)
783 QString const & commit_string = e->commitString();
784 docstring const & preedit_string
785 = qstring_to_ucs4(e->preeditString());
787 if (!commit_string.isEmpty()) {
789 LYXERR(Debug::KEY, "preeditString: " << fromqstr(e->preeditString())
790 << " commitString: " << fromqstr(e->commitString()));
794 // FIXME Iwami 04/01/07: we should take care also of UTF16 surrogates here.
795 for (int i = 0; i != commit_string.size(); ++i) {
796 QKeyEvent ev(QEvent::KeyPress, key, Qt::NoModifier, commit_string[i]);
801 // Hide the cursor during the kana-kanji transformation.
802 if (preedit_string.empty())
803 startBlinkingCursor();
805 stopBlinkingCursor();
807 // last_width : for checking if last preedit string was/wasn't empty.
808 static bool last_width = false;
809 if (!last_width && preedit_string.empty()) {
810 // if last_width is last length of preedit string.
815 GuiPainter pain(&screen_);
816 buffer_view_->updateMetrics();
817 buffer_view_->draw(pain);
818 FontInfo font = buffer_view_->cursor().getFont().fontInfo();
819 FontMetrics const & fm = theFontMetrics(font);
820 int height = fm.maxHeight();
821 int cur_x = cursor_->rect().left();
822 int cur_y = cursor_->rect().bottom();
824 // redraw area of preedit string.
825 update(0, cur_y - height, viewport()->width(),
826 (height + 1) * preedit_lines_);
828 if (preedit_string.empty()) {
836 // att : stores an IM attribute.
837 QList<QInputMethodEvent::Attribute> const & att = e->attributes();
839 // get attributes of input method cursor.
840 // cursor_pos : cursor position in preedit string.
841 size_t cursor_pos = 0;
842 bool cursor_is_visible = false;
843 for (int i = 0; i != att.size(); ++i) {
844 if (att.at(i).type == QInputMethodEvent::Cursor) {
845 cursor_pos = att.at(i).start;
846 cursor_is_visible = att.at(i).length != 0;
851 size_t preedit_length = preedit_string.length();
853 // get position of selection in input method.
854 // FIXME: isn't there a way to do this simplier?
855 // rStart : cursor position in selected string in IM.
857 // rLength : selected string length in IM.
859 if (cursor_pos < preedit_length) {
860 for (int i = 0; i != att.size(); ++i) {
861 if (att.at(i).type == QInputMethodEvent::TextFormat) {
862 if (att.at(i).start <= int(cursor_pos)
863 && int(cursor_pos) < att.at(i).start + att.at(i).length) {
864 rStart = att.at(i).start;
865 rLength = att.at(i).length;
866 if (!cursor_is_visible)
867 cursor_pos += rLength;
878 int const right_margin = rightMargin();
879 Painter::preedit_style ps;
880 // Most often there would be only one line:
882 for (size_t pos = 0; pos != preedit_length; ++pos) {
883 char_type const typed_char = preedit_string[pos];
884 // reset preedit string style
885 ps = Painter::preedit_default;
887 // if we reached the right extremity of the screen, go to next line.
888 if (cur_x + fm.width(typed_char) > viewport()->width() - right_margin) {
889 cur_x = right_margin;
893 // preedit strings are displayed with dashed underline
894 // and partial strings are displayed white on black indicating
895 // that we are in selecting mode in the input method.
896 // FIXME: rLength == preedit_length is not a changing condition
897 // FIXME: should be put out of the loop.
899 && pos < rStart + rLength
900 && !(cursor_pos < rLength && rLength == preedit_length))
901 ps = Painter::preedit_selecting;
903 if (pos == cursor_pos
904 && (cursor_pos < rLength && rLength == preedit_length))
905 ps = Painter::preedit_cursor;
907 // draw one character and update cur_x.
908 cur_x += pain.preeditText(cur_x, cur_y, typed_char, font, ps);
911 // update the preedit string screen area.
912 update(0, cur_y - preedit_lines_*height, viewport()->width(),
913 (height + 1) * preedit_lines_);
915 // Don't forget to accept the event!
920 QVariant GuiWorkArea::inputMethodQuery(Qt::InputMethodQuery query) const
922 QRect cur_r(0,0,0,0);
924 // this is the CJK-specific composition window position.
925 case Qt::ImMicroFocus:
926 cur_r = cursor_->rect();
927 if (preedit_lines_ != 1)
929 cur_r.moveBottom(cur_r.bottom() + cur_r.height() * preedit_lines_);
930 // return lower right of cursor in LyX.
933 return QWidget::inputMethodQuery(query);
938 void GuiWorkArea::updateWindowTitle()
940 docstring maximize_title;
941 docstring minimize_title;
943 Buffer & buf = buffer_view_->buffer();
944 FileName const fileName = buf.fileName();
945 if (!fileName.empty()) {
946 maximize_title = fileName.displayName(30);
947 minimize_title = from_utf8(fileName.onlyFileName());
948 if (!buf.isClean()) {
949 maximize_title += _(" (changed)");
950 minimize_title += char_type('*');
952 if (buf.isReadonly())
953 maximize_title += _(" (read only)");
956 QString title = windowTitle();
957 QString new_title = toqstr(maximize_title);
958 if (title == new_title)
961 QWidget::setWindowTitle(new_title);
962 QWidget::setWindowIconText(toqstr(minimize_title));
967 void GuiWorkArea::setReadOnly(bool)
970 if (this == lyx_view_->currentWorkArea())
971 lyx_view_->updateBufferDependent(false);
975 ////////////////////////////////////////////////////////////////////
979 ////////////////////////////////////////////////////////////////////
981 TabWorkArea::TabWorkArea(QWidget * parent) : QTabWidget(parent)
983 QPalette pal = palette();
984 pal.setColor(QPalette::Active, QPalette::Button,
985 pal.color(QPalette::Active, QPalette::Window));
986 pal.setColor(QPalette::Disabled, QPalette::Button,
987 pal.color(QPalette::Disabled, QPalette::Window));
988 pal.setColor(QPalette::Inactive, QPalette::Button,
989 pal.color(QPalette::Inactive, QPalette::Window));
991 QToolButton * closeTabButton = new QToolButton(this);
992 closeTabButton->setPalette(pal);
993 closeTabButton->setIcon(QIcon(":/images/closetab.png"));
994 closeTabButton->setText("Close");
995 closeTabButton->setAutoRaise(true);
996 closeTabButton->setCursor(Qt::ArrowCursor);
997 closeTabButton->setToolTip(tr("Close tab"));
998 closeTabButton->setEnabled(true);
1000 QObject::connect(this, SIGNAL(currentChanged(int)),
1001 this, SLOT(on_currentTabChanged(int)));
1002 QObject::connect(closeTabButton, SIGNAL(clicked()),
1003 this, SLOT(closeCurrentTab()));
1005 setCornerWidget(closeTabButton);
1006 setUsesScrollButtons(true);
1010 void TabWorkArea::showBar(bool show)
1012 tabBar()->setEnabled(show);
1013 tabBar()->setVisible(show);
1017 GuiWorkArea * TabWorkArea::currentWorkArea()
1022 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(currentWidget());
1028 GuiWorkArea * TabWorkArea::workArea(Buffer & buffer)
1030 for (int i = 0; i != count(); ++i) {
1031 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(i));
1033 if (&wa->bufferView().buffer() == &buffer)
1040 void TabWorkArea::closeAll()
1043 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(0));
1051 bool TabWorkArea::setCurrentWorkArea(GuiWorkArea * work_area)
1053 BOOST_ASSERT(work_area);
1054 int index = indexOf(work_area);
1058 if (index == currentIndex())
1059 // Make sure the work area is up to date.
1060 on_currentTabChanged(index);
1062 // Switch to the work area.
1063 setCurrentIndex(index);
1064 work_area->setFocus();
1070 GuiWorkArea * TabWorkArea::addWorkArea(Buffer & buffer, GuiView & view)
1072 GuiWorkArea * wa = new GuiWorkArea(buffer, view);
1073 wa->setUpdatesEnabled(false);
1074 // Hide tabbar if there's no tab (avoid a resize and a flashing tabbar
1075 // when hiding it again below).
1076 showBar(count() > 0);
1077 addTab(wa, wa->windowTitle());
1078 QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
1079 this, SLOT(updateTabText(GuiWorkArea *)));
1080 // Hide tabbar if there's only one tab.
1081 showBar(count() > 1);
1086 bool TabWorkArea::removeWorkArea(GuiWorkArea * work_area)
1088 BOOST_ASSERT(work_area);
1089 int index = indexOf(work_area);
1093 work_area->setUpdatesEnabled(false);
1098 // make sure the next work area is enabled.
1099 currentWidget()->setUpdatesEnabled(true);
1100 // Hide tabbar if there's only one tab.
1101 showBar(count() > 1);
1107 void TabWorkArea::on_currentTabChanged(int i)
1109 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(i));
1111 BufferView & bv = wa->bufferView();
1112 bv.cursor().fixIfBroken();
1114 wa->setUpdatesEnabled(true);
1118 currentWorkAreaChanged(wa);
1120 LYXERR(Debug::GUI, "currentTabChanged " << i
1121 << "File" << bv.buffer().absFileName());
1125 void TabWorkArea::closeCurrentTab()
1127 lyx::dispatch(FuncRequest(LFUN_BUFFER_CLOSE));
1131 void TabWorkArea::updateTabText(GuiWorkArea * wa)
1133 int const i = indexOf(wa);
1136 setTabText(i, wa->windowTitle());
1139 } // namespace frontend
1142 #include "GuiWorkArea_moc.cpp"