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"
27 #include "KeySymbol.h"
31 #include "MetricsInfo.h"
32 #include "qt_helpers.h"
35 #include "graphics/GraphicsImage.h"
36 #include "graphics/GraphicsLoader.h"
38 #include "support/debug.h"
39 #include "support/gettext.h"
40 #include "support/FileName.h"
41 #include "support/ForkedCalls.h"
43 #include "frontends/Application.h"
44 #include "frontends/FontMetrics.h"
45 #include "frontends/WorkAreaManager.h"
47 #include <QInputContext>
49 #include <QMainWindow>
51 #include <QToolButton>
57 #include <boost/bind.hpp>
61 extern "C" int XEventsQueued(Display *display, int mode);
65 int const CursorWidth = 2;
67 int const CursorWidth = 1;
80 using support::FileName;
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);
257 void GuiWorkArea::close()
259 lyx_view_->removeWorkArea(this);
263 BufferView & GuiWorkArea::bufferView()
265 return *buffer_view_;
269 BufferView const & GuiWorkArea::bufferView() const
271 return *buffer_view_;
275 void GuiWorkArea::stopBlinkingCursor()
277 cursor_timeout_.stop();
282 void GuiWorkArea::startBlinkingCursor()
285 cursor_timeout_.start();
289 void GuiWorkArea::redraw()
292 // No need to redraw in this case.
295 // No need to do anything if this is the current view. The BufferView
296 // metrics are already up to date.
297 if (lyx_view_ != guiApp->currentView()) {
298 // FIXME: it would be nice to optimize for the off-screen case.
299 buffer_view_->updateMetrics();
300 buffer_view_->cursor().fixIfBroken();
305 // update cursor position, because otherwise it has to wait until
306 // the blinking interval is over
307 if (cursor_visible_) {
312 LYXERR(Debug::WORKAREA, "WorkArea::redraw screen");
314 update(0, 0, viewport()->width(), viewport()->height());
316 lyx_view_->updateStatusBar();
318 if (lyxerr.debugging(Debug::WORKAREA))
319 buffer_view_->coordCache().dump();
323 void GuiWorkArea::processKeySym(KeySymbol const & key, KeyModifier mod)
325 // In order to avoid bad surprise in the middle of an operation,
326 // we better stop the blinking cursor.
327 stopBlinkingCursor();
329 theLyXFunc().setLyXView(lyx_view_);
330 theLyXFunc().processKeySym(key, mod);
334 void GuiWorkArea::dispatch(FuncRequest const & cmd0, KeyModifier mod)
337 if (cmd0.action == LFUN_FILE_OPEN) {
338 lyx_view_->dispatch(cmd0);
342 theLyXFunc().setLyXView(lyx_view_);
346 if (cmd0.action == LFUN_MOUSE_PRESS) {
347 if (mod == ShiftModifier)
348 cmd = FuncRequest(cmd0, "region-select");
349 else if (mod == ControlModifier)
350 cmd = FuncRequest(cmd0, "paragraph-select");
357 // In order to avoid bad surprise in the middle of an operation, we better stop
358 // the blinking cursor.
359 if (!(cmd.action == LFUN_MOUSE_MOTION
360 && cmd.button() == mouse_button::none))
361 stopBlinkingCursor();
363 buffer_view_->mouseEventDispatch(cmd);
365 // Skip these when selecting
366 if (cmd.action != LFUN_MOUSE_MOTION) {
367 lyx_view_->updateLayoutList();
368 lyx_view_->updateToolbars();
371 // GUI tweaks except with mouse motion with no button pressed.
372 if (!(cmd.action == LFUN_MOUSE_MOTION
373 && cmd.button() == mouse_button::none)) {
374 // Slight hack: this is only called currently when we
375 // clicked somewhere, so we force through the display
376 // of the new status here.
377 lyx_view_->clearMessage();
379 // Show the cursor immediately after any operation.
380 startBlinkingCursor();
385 void GuiWorkArea::resizeBufferView()
387 // WARNING: Please don't put any code that will trigger a repaint here!
388 // We are already inside a paint event.
389 lyx_view_->setBusy(true);
390 buffer_view_->resize(viewport()->width(), viewport()->height());
391 lyx_view_->updateLayoutList();
392 lyx_view_->setBusy(false);
393 need_resize_ = false;
397 void GuiWorkArea::showCursor()
402 CursorShape shape = BAR_SHAPE;
404 Font const & realfont = buffer_view_->cursor().real_current_font;
405 BufferParams const & bp = buffer_view_->buffer().params();
406 bool const samelang = realfont.language() == bp.language;
407 bool const isrtl = realfont.isVisibleRightToLeft();
409 if (!samelang || isrtl != bp.language->rightToLeft()) {
412 shape = REVERSED_L_SHAPE;
415 // The ERT language hack needs fixing up
416 if (realfont.language() == latex_language)
419 Font const font = buffer_view_->cursor().getFont();
420 FontMetrics const & fm = theFontMetrics(font);
421 int const asc = fm.maxAscent();
422 int const des = fm.maxDescent();
426 buffer_view_->cursor().getPos(x, y);
429 // if it doesn't touch the screen, don't try to show it
430 if (y + h < 0 || y >= viewport()->height())
433 cursor_visible_ = true;
434 showCursor(x, y, h, shape);
438 void GuiWorkArea::hideCursor()
440 if (!cursor_visible_)
443 cursor_visible_ = false;
448 void GuiWorkArea::toggleCursor()
455 // Use this opportunity to deal with any child processes that
456 // have finished but are waiting to communicate this fact
457 // to the rest of LyX.
458 support::ForkedCallsController::handleCompletedProcesses();
462 void GuiWorkArea::updateScrollbar()
464 verticalScrollBar()->setTracking(false);
466 buffer_view_->updateScrollbar();
467 ScrollbarParameters const & scroll_ = buffer_view_->scrollbarParameters();
469 // do what cursor movement does (some grey)
470 int const h = scroll_.height + viewport()->height() / 4;
471 int scroll_max_ = std::max(0, h - viewport()->height());
473 verticalScrollBar()->setRange(0, scroll_max_);
474 verticalScrollBar()->setSliderPosition(scroll_.position);
475 verticalScrollBar()->setSingleStep(scroll_.lineScrollHeight);
476 verticalScrollBar()->setValue(scroll_.position);
478 verticalScrollBar()->setTracking(true);
482 void GuiWorkArea::adjustViewWithScrollBar(int action)
484 stopBlinkingCursor();
485 if (action == QAbstractSlider::SliderPageStepAdd)
486 buffer_view_->scrollDown(viewport()->height());
487 else if (action == QAbstractSlider::SliderPageStepSub)
488 buffer_view_->scrollUp(viewport()->height());
490 buffer_view_->scrollDocView(verticalScrollBar()->sliderPosition());
492 if (lyxrc.cursor_follows_scrollbar) {
493 buffer_view_->setCursorFromScrollbar();
494 lyx_view_->updateLayoutList();
496 // Show the cursor immediately after any operation.
497 startBlinkingCursor();
498 QApplication::syncX();
502 void GuiWorkArea::focusInEvent(QFocusEvent * /*event*/)
504 // Repaint the whole screen.
505 // Note: this is different from redraw() as only the backing pixmap
506 // will be redrawn, which is cheap.
507 viewport()->repaint();
509 startBlinkingCursor();
513 void GuiWorkArea::focusOutEvent(QFocusEvent * /*event*/)
515 stopBlinkingCursor();
519 void GuiWorkArea::mousePressEvent(QMouseEvent * e)
521 if (dc_event_.active && dc_event_ == *e) {
522 dc_event_.active = false;
523 FuncRequest cmd(LFUN_MOUSE_TRIPLE, e->x(), e->y(),
524 q_button_state(e->button()));
529 inputContext()->reset();
531 FuncRequest const cmd(LFUN_MOUSE_PRESS, e->x(), e->y(),
532 q_button_state(e->button()));
533 dispatch(cmd, q_key_state(e->modifiers()));
537 void GuiWorkArea::mouseReleaseEvent(QMouseEvent * e)
539 if (synthetic_mouse_event_.timeout.running())
540 synthetic_mouse_event_.timeout.stop();
542 FuncRequest const cmd(LFUN_MOUSE_RELEASE, e->x(), e->y(),
543 q_button_state(e->button()));
548 void GuiWorkArea::mouseMoveEvent(QMouseEvent * e)
550 // we kill the triple click if we move
551 doubleClickTimeout();
552 FuncRequest cmd(LFUN_MOUSE_MOTION, e->x(), e->y(),
553 q_motion_state(e->buttons()));
555 // If we're above or below the work area...
556 if (e->y() <= 20 || e->y() >= viewport()->height() - 20) {
557 // Make sure only a synthetic event can cause a page scroll,
558 // so they come at a steady rate:
560 // _Force_ a scroll up:
563 cmd.y = viewport()->height();
564 // Store the event, to be handled when the timeout expires.
565 synthetic_mouse_event_.cmd = cmd;
567 if (synthetic_mouse_event_.timeout.running())
568 // Discard the event. Note that it _may_ be handled
569 // when the timeout expires if
570 // synthetic_mouse_event_.cmd has not been overwritten.
571 // Ie, when the timeout expires, we handle the
572 // most recent event but discard all others that
573 // occurred after the one used to start the timeout
574 // in the first place.
577 synthetic_mouse_event_.restart_timeout = true;
578 synthetic_mouse_event_.timeout.start();
579 // Fall through to handle this event...
582 } else if (synthetic_mouse_event_.timeout.running()) {
583 // Store the event, to be possibly handled when the timeout
585 // Once the timeout has expired, normal control is returned
586 // to mouseMoveEvent (restart_timeout = false).
587 // This results in a much smoother 'feel' when moving the
588 // mouse back into the work area.
589 synthetic_mouse_event_.cmd = cmd;
590 synthetic_mouse_event_.restart_timeout = false;
594 // Has anything changed on-screen since the last QMouseEvent
596 double const scrollbar_value = verticalScrollBar()->value();
597 if (e->x() != synthetic_mouse_event_.x_old ||
598 e->y() != synthetic_mouse_event_.y_old ||
599 scrollbar_value != synthetic_mouse_event_.scrollbar_value_old) {
600 // Yes it has. Store the params used to check this.
601 synthetic_mouse_event_.x_old = e->x();
602 synthetic_mouse_event_.y_old = e->y();
603 synthetic_mouse_event_.scrollbar_value_old = scrollbar_value;
605 // ... and dispatch the event to the LyX core.
611 void GuiWorkArea::wheelEvent(QWheelEvent * e)
613 // Wheel rotation by one notch results in a delta() of 120 (see
614 // documentation of QWheelEvent)
615 int const lines = qApp->wheelScrollLines() * e->delta() / 120;
616 verticalScrollBar()->setValue(verticalScrollBar()->value() -
617 lines * verticalScrollBar()->singleStep());
618 adjustViewWithScrollBar();
622 void GuiWorkArea::generateSyntheticMouseEvent()
624 // Set things off to generate the _next_ 'pseudo' event.
625 if (synthetic_mouse_event_.restart_timeout)
626 synthetic_mouse_event_.timeout.start();
628 // Has anything changed on-screen since the last timeout signal
630 double const scrollbar_value = verticalScrollBar()->value();
631 if (scrollbar_value != synthetic_mouse_event_.scrollbar_value_old) {
632 // Yes it has. Store the params used to check this.
633 synthetic_mouse_event_.scrollbar_value_old = scrollbar_value;
635 // ... and dispatch the event to the LyX core.
636 dispatch(synthetic_mouse_event_.cmd);
641 void GuiWorkArea::keyPressEvent(QKeyEvent * ev)
643 // do nothing if there are other events
644 // (the auto repeated events come too fast)
645 // \todo FIXME: remove hard coded Qt keys, process the key binding
647 if (XEventsQueued(QX11Info::display(), 0) > 1 && ev->isAutoRepeat()
648 && (Qt::Key_PageDown || Qt::Key_PageUp)) {
649 LYXERR(Debug::KEY, "system is busy: scroll key event ignored");
655 LYXERR(Debug::KEY, " count: " << ev->count()
656 << " text: " << fromqstr(ev->text())
657 << " isAutoRepeat: " << ev->isAutoRepeat() << " key: " << ev->key());
660 setKeySymbol(&sym, ev);
661 processKeySym(sym, q_key_state(ev->modifiers()));
665 void GuiWorkArea::doubleClickTimeout()
667 dc_event_.active = false;
671 void GuiWorkArea::mouseDoubleClickEvent(QMouseEvent * ev)
673 dc_event_ = DoubleClick(ev);
674 QTimer::singleShot(QApplication::doubleClickInterval(), this,
675 SLOT(doubleClickTimeout()));
676 FuncRequest cmd(LFUN_MOUSE_DOUBLE,
678 q_button_state(ev->button()));
683 void GuiWorkArea::resizeEvent(QResizeEvent * ev)
685 QAbstractScrollArea::resizeEvent(ev);
690 void GuiWorkArea::update(int x, int y, int w, int h)
692 viewport()->repaint(x, y, w, h);
696 void GuiWorkArea::paintEvent(QPaintEvent * ev)
698 QRect const rc = ev->rect();
699 // LYXERR(Debug::PAINTING, "paintEvent begin: x: " << rc.x()
700 // << " y: " << rc.y() << " w: " << rc.width() << " h: " << rc.height());
703 verticalScrollBar()->setPageStep(viewport()->height());
704 screen_ = QPixmap(viewport()->width(), viewport()->height());
711 QPainter pain(viewport());
712 pain.drawPixmap(rc, screen_, rc);
717 void GuiWorkArea::updateScreen()
719 GuiPainter pain(&screen_);
720 buffer_view_->draw(pain);
724 void GuiWorkArea::showCursor(int x, int y, int h, CursorShape shape)
726 if (schedule_redraw_) {
727 buffer_view_->updateMetrics();
729 viewport()->update(QRect(0, 0, viewport()->width(), viewport()->height()));
730 schedule_redraw_ = false;
731 // Show the cursor immediately after the update.
737 cursor_->update(x, y, h, shape);
739 viewport()->update(cursor_->rect());
743 void GuiWorkArea::removeCursor()
746 //if (!qApp->focusWidget())
747 viewport()->update(cursor_->rect());
751 void GuiWorkArea::inputMethodEvent(QInputMethodEvent * e)
753 QString const & commit_string = e->commitString();
754 docstring const & preedit_string
755 = qstring_to_ucs4(e->preeditString());
757 if (!commit_string.isEmpty()) {
759 LYXERR(Debug::KEY, "preeditString: " << fromqstr(e->preeditString())
760 << " commitString: " << fromqstr(e->commitString()));
764 // FIXME Iwami 04/01/07: we should take care also of UTF16 surrogates here.
765 for (int i = 0; i != commit_string.size(); ++i) {
766 QKeyEvent ev(QEvent::KeyPress, key, Qt::NoModifier, commit_string[i]);
771 // Hide the cursor during the kana-kanji transformation.
772 if (preedit_string.empty())
773 startBlinkingCursor();
775 stopBlinkingCursor();
777 // last_width : for checking if last preedit string was/wasn't empty.
778 static bool last_width = false;
779 if (!last_width && preedit_string.empty()) {
780 // if last_width is last length of preedit string.
785 GuiPainter pain(&screen_);
786 buffer_view_->updateMetrics();
787 buffer_view_->draw(pain);
788 FontInfo font = buffer_view_->cursor().getFont().fontInfo();
789 FontMetrics const & fm = theFontMetrics(font);
790 int height = fm.maxHeight();
791 int cur_x = cursor_->rect().left();
792 int cur_y = cursor_->rect().bottom();
794 // redraw area of preedit string.
795 update(0, cur_y - height, viewport()->width(),
796 (height + 1) * preedit_lines_);
798 if (preedit_string.empty()) {
806 // att : stores an IM attribute.
807 QList<QInputMethodEvent::Attribute> const & att = e->attributes();
809 // get attributes of input method cursor.
810 // cursor_pos : cursor position in preedit string.
811 size_t cursor_pos = 0;
812 bool cursor_is_visible = false;
813 for (int i = 0; i != att.size(); ++i) {
814 if (att.at(i).type == QInputMethodEvent::Cursor) {
815 cursor_pos = att.at(i).start;
816 cursor_is_visible = att.at(i).length != 0;
821 size_t preedit_length = preedit_string.length();
823 // get position of selection in input method.
824 // FIXME: isn't there a way to do this simplier?
825 // rStart : cursor position in selected string in IM.
827 // rLength : selected string length in IM.
829 if (cursor_pos < preedit_length) {
830 for (int i = 0; i != att.size(); ++i) {
831 if (att.at(i).type == QInputMethodEvent::TextFormat) {
832 if (att.at(i).start <= int(cursor_pos)
833 && int(cursor_pos) < att.at(i).start + att.at(i).length) {
834 rStart = att.at(i).start;
835 rLength = att.at(i).length;
836 if (!cursor_is_visible)
837 cursor_pos += rLength;
848 int const right_margin = rightMargin();
849 Painter::preedit_style ps;
850 // Most often there would be only one line:
852 for (size_t pos = 0; pos != preedit_length; ++pos) {
853 char_type const typed_char = preedit_string[pos];
854 // reset preedit string style
855 ps = Painter::preedit_default;
857 // if we reached the right extremity of the screen, go to next line.
858 if (cur_x + fm.width(typed_char) > viewport()->width() - right_margin) {
859 cur_x = right_margin;
863 // preedit strings are displayed with dashed underline
864 // and partial strings are displayed white on black indicating
865 // that we are in selecting mode in the input method.
866 // FIXME: rLength == preedit_length is not a changing condition
867 // FIXME: should be put out of the loop.
869 && pos < rStart + rLength
870 && !(cursor_pos < rLength && rLength == preedit_length))
871 ps = Painter::preedit_selecting;
873 if (pos == cursor_pos
874 && (cursor_pos < rLength && rLength == preedit_length))
875 ps = Painter::preedit_cursor;
877 // draw one character and update cur_x.
878 cur_x += pain.preeditText(cur_x, cur_y, typed_char, font, ps);
881 // update the preedit string screen area.
882 update(0, cur_y - preedit_lines_*height, viewport()->width(),
883 (height + 1) * preedit_lines_);
885 // Don't forget to accept the event!
890 QVariant GuiWorkArea::inputMethodQuery(Qt::InputMethodQuery query) const
892 QRect cur_r(0,0,0,0);
894 // this is the CJK-specific composition window position.
895 case Qt::ImMicroFocus:
896 cur_r = cursor_->rect();
897 if (preedit_lines_ != 1)
899 cur_r.moveBottom(cur_r.bottom() + cur_r.height() * preedit_lines_);
900 // return lower right of cursor in LyX.
903 return QWidget::inputMethodQuery(query);
908 void GuiWorkArea::updateWindowTitle()
910 docstring maximize_title;
911 docstring minimize_title;
913 Buffer & buf = buffer_view_->buffer();
914 FileName const fileName = buf.fileName();
915 if (!fileName.empty()) {
916 maximize_title = fileName.displayName(30);
917 minimize_title = from_utf8(fileName.onlyFileName());
918 if (!buf.isClean()) {
919 maximize_title += _(" (changed)");
920 minimize_title += char_type('*');
922 if (buf.isReadonly())
923 maximize_title += _(" (read only)");
926 QString title = windowTitle();
927 QString new_title = toqstr(maximize_title);
928 if (title == new_title)
931 QWidget::setWindowTitle(new_title);
932 QWidget::setWindowIconText(toqstr(minimize_title));
937 void GuiWorkArea::setReadOnly(bool)
940 if (this == lyx_view_->currentWorkArea())
941 lyx_view_->updateBufferDependent(false);
945 ////////////////////////////////////////////////////////////////////
949 ////////////////////////////////////////////////////////////////////
951 TabWorkArea::TabWorkArea(QWidget * parent) : QTabWidget(parent)
953 QPalette pal = palette();
954 pal.setColor(QPalette::Active, QPalette::Button,
955 pal.color(QPalette::Active, QPalette::Window));
956 pal.setColor(QPalette::Disabled, QPalette::Button,
957 pal.color(QPalette::Disabled, QPalette::Window));
958 pal.setColor(QPalette::Inactive, QPalette::Button,
959 pal.color(QPalette::Inactive, QPalette::Window));
961 QToolButton * closeTabButton = new QToolButton(this);
962 closeTabButton->setPalette(pal);
963 closeTabButton->setIcon(QIcon(":/images/closetab.png"));
964 closeTabButton->setText("Close");
965 closeTabButton->setAutoRaise(true);
966 closeTabButton->setCursor(Qt::ArrowCursor);
967 closeTabButton->setToolTip(tr("Close tab"));
968 closeTabButton->setEnabled(true);
970 QObject::connect(this, SIGNAL(currentChanged(int)),
971 this, SLOT(on_currentTabChanged(int)));
972 QObject::connect(closeTabButton, SIGNAL(clicked()),
973 this, SLOT(closeCurrentTab()));
975 setCornerWidget(closeTabButton);
976 setUsesScrollButtons(true);
980 void TabWorkArea::showBar(bool show)
982 tabBar()->setEnabled(show);
983 tabBar()->setVisible(show);
987 GuiWorkArea * TabWorkArea::currentWorkArea()
992 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(currentWidget());
998 GuiWorkArea * TabWorkArea::workArea(Buffer & buffer)
1000 for (int i = 0; i != count(); ++i) {
1001 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(i));
1003 if (&wa->bufferView().buffer() == &buffer)
1010 void TabWorkArea::closeAll()
1013 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(0));
1021 bool TabWorkArea::setCurrentWorkArea(GuiWorkArea * work_area)
1023 BOOST_ASSERT(work_area);
1024 int index = indexOf(work_area);
1028 if (index == currentIndex())
1029 // Make sure the work area is up to date.
1030 on_currentTabChanged(index);
1032 // Switch to the work area.
1033 setCurrentIndex(index);
1034 work_area->setFocus();
1040 GuiWorkArea * TabWorkArea::addWorkArea(Buffer & buffer, GuiView & view)
1042 GuiWorkArea * wa = new GuiWorkArea(buffer, view);
1043 wa->setUpdatesEnabled(false);
1044 // Hide tabbar if there's no tab (avoid a resize and a flashing tabbar
1045 // when hiding it again below).
1046 showBar(count() > 0);
1047 addTab(wa, wa->windowTitle());
1048 QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
1049 this, SLOT(updateTabText(GuiWorkArea *)));
1050 // Hide tabbar if there's only one tab.
1051 showBar(count() > 1);
1056 bool TabWorkArea::removeWorkArea(GuiWorkArea * work_area)
1058 BOOST_ASSERT(work_area);
1059 int index = indexOf(work_area);
1063 work_area->setUpdatesEnabled(false);
1068 // make sure the next work area is enabled.
1069 currentWidget()->setUpdatesEnabled(true);
1070 // Hide tabbar if there's only one tab.
1071 showBar(count() > 1);
1077 void TabWorkArea::on_currentTabChanged(int i)
1079 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(i));
1081 BufferView & bv = wa->bufferView();
1082 bv.cursor().fixIfBroken();
1084 wa->setUpdatesEnabled(true);
1088 currentWorkAreaChanged(wa);
1090 LYXERR(Debug::GUI, "currentTabChanged " << i
1091 << "File" << bv.buffer().absFileName());
1095 void TabWorkArea::closeCurrentTab()
1097 lyx::dispatch(FuncRequest(LFUN_BUFFER_CLOSE));
1101 void TabWorkArea::updateTabText(GuiWorkArea * wa)
1103 int const i = indexOf(wa);
1106 setTabText(i, wa->windowTitle());
1109 } // namespace frontend
1112 #include "GuiWorkArea_moc.cpp"