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;
74 using namespace lyx::support;
79 /// return the LyX mouse button state from Qt's
80 static mouse_button::state q_button_state(Qt::MouseButton button)
82 mouse_button::state b = mouse_button::none;
85 b = mouse_button::button1;
88 b = mouse_button::button2;
91 b = mouse_button::button3;
100 /// return the LyX mouse button state from Qt's
101 mouse_button::state q_motion_state(Qt::MouseButtons state)
103 mouse_button::state b = mouse_button::none;
104 if (state & Qt::LeftButton)
105 b |= mouse_button::button1;
106 if (state & Qt::MidButton)
107 b |= mouse_button::button2;
108 if (state & Qt::RightButton)
109 b |= mouse_button::button3;
120 void draw(QPainter & painter)
122 if (show_ && rect_.isValid()) {
125 painter.fillRect(rect_.x(), rect_.y(), CursorWidth, rect_.height(), color_);
126 painter.setPen(color_);
127 painter.drawLine(rect_.bottomLeft().x() + CursorWidth, rect_.bottomLeft().y(),
128 rect_.bottomRight().x(), rect_.bottomLeft().y());
131 case REVERSED_L_SHAPE:
132 painter.fillRect(rect_.x() + rect_.height() / 3, rect_.y(), CursorWidth, rect_.height(), color_);
133 painter.setPen(color_);
134 painter.drawLine(rect_.bottomRight().x() - CursorWidth, rect_.bottomLeft().y(),
135 rect_.bottomLeft().x(), rect_.bottomLeft().y());
139 painter.fillRect(rect_, color_);
145 void update(int x, int y, int h, CursorShape shape)
147 color_ = guiApp->colorCache().get(Color_cursor);
151 rect_ = QRect(x, y, CursorWidth + h / 3, h);
153 case REVERSED_L_SHAPE:
154 rect_ = QRect(x - h / 3, y, CursorWidth + h / 3, h);
157 rect_ = QRect(x, y, CursorWidth, h);
162 void show(bool set_show = true) { show_ = set_show; }
163 void hide() { show_ = false; }
165 QRect const & rect() { return rect_; }
179 // This is a 'heartbeat' generating synthetic mouse move events when the
180 // cursor is at the top or bottom edge of the viewport. One scroll per 0.2 s
181 SyntheticMouseEvent::SyntheticMouseEvent()
182 : timeout(200), restart_timeout(true),
183 x_old(-1), y_old(-1), scrollbar_value_old(-1.0)
188 GuiWorkArea::GuiWorkArea(Buffer & buffer, GuiView & lv)
189 : buffer_view_(new BufferView(buffer)), lyx_view_(&lv),
190 cursor_visible_(false),
191 need_resize_(false), schedule_redraw_(false),
194 buffer.workAreaManager().add(this);
196 cursor_timeout_.setInterval(400);
197 connect(&cursor_timeout_, SIGNAL(timeout()),
198 this, SLOT(toggleCursor()));
200 cursor_timeout_.start();
202 screen_ = QPixmap(viewport()->width(), viewport()->height());
203 cursor_ = new frontend::CursorWidget();
206 setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
207 setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
208 setAcceptDrops(true);
209 setMouseTracking(true);
210 setMinimumSize(100, 70);
213 viewport()->setAutoFillBackground(false);
214 // We don't need double-buffering nor SystemBackground on
215 // the viewport because we have our own backing pixmap.
216 viewport()->setAttribute(Qt::WA_NoSystemBackground);
218 setFocusPolicy(Qt::WheelFocus);
220 viewport()->setCursor(Qt::IBeamCursor);
222 synthetic_mouse_event_.timeout.timeout.connect(
223 boost::bind(&GuiWorkArea::generateSyntheticMouseEvent,
226 // Initialize the vertical Scroll Bar
227 QObject::connect(verticalScrollBar(), SIGNAL(actionTriggered(int)),
228 this, SLOT(adjustViewWithScrollBar(int)));
230 // disable context menu for the scrollbar
231 verticalScrollBar()->setContextMenuPolicy(Qt::NoContextMenu);
233 // PageStep only depends on the viewport height.
234 verticalScrollBar()->setPageStep(viewport()->height());
236 LYXERR(Debug::GUI, "viewport width: " << viewport()->width()
237 << " viewport height: " << viewport()->height());
239 // Enables input methods for asian languages.
240 // Must be set when creating custom text editing widgets.
241 setAttribute(Qt::WA_InputMethodEnabled, true);
246 GuiWorkArea::~GuiWorkArea()
248 buffer_view_->buffer().workAreaManager().remove(this);
254 void GuiWorkArea::close()
256 lyx_view_->removeWorkArea(this);
260 BufferView & GuiWorkArea::bufferView()
262 return *buffer_view_;
266 BufferView const & GuiWorkArea::bufferView() const
268 return *buffer_view_;
272 void GuiWorkArea::stopBlinkingCursor()
274 cursor_timeout_.stop();
279 void GuiWorkArea::startBlinkingCursor()
282 cursor_timeout_.start();
286 void GuiWorkArea::redraw()
289 // No need to redraw in this case.
292 // No need to do anything if this is the current view. The BufferView
293 // metrics are already up to date.
294 if (lyx_view_ != guiApp->currentView()) {
295 // FIXME: it would be nice to optimize for the off-screen case.
296 buffer_view_->updateMetrics();
297 buffer_view_->cursor().fixIfBroken();
300 // update cursor position, because otherwise it has to wait until
301 // the blinking interval is over
302 if (cursor_visible_) {
307 LYXERR(Debug::WORKAREA, "WorkArea::redraw screen");
309 update(0, 0, viewport()->width(), viewport()->height());
311 /// \warning: scrollbar updating *must* be done after the BufferView is drawn
312 /// because \c BufferView::updateScrollbar() is called in \c BufferView::draw().
314 lyx_view_->updateStatusBar();
316 if (lyxerr.debugging(Debug::WORKAREA))
317 buffer_view_->coordCache().dump();
321 void GuiWorkArea::processKeySym(KeySymbol const & key, KeyModifier mod)
323 // In order to avoid bad surprise in the middle of an operation,
324 // we better stop the blinking cursor.
325 stopBlinkingCursor();
327 theLyXFunc().setLyXView(lyx_view_);
328 theLyXFunc().processKeySym(key, mod);
332 void GuiWorkArea::dispatch(FuncRequest const & cmd0, KeyModifier mod)
335 if (cmd0.action == LFUN_FILE_OPEN) {
336 lyx_view_->dispatch(cmd0);
340 theLyXFunc().setLyXView(lyx_view_);
344 if (cmd0.action == LFUN_MOUSE_PRESS) {
345 if (mod == ShiftModifier)
346 cmd = FuncRequest(cmd0, "region-select");
347 else if (mod == ControlModifier)
348 cmd = FuncRequest(cmd0, "paragraph-select");
355 // In order to avoid bad surprise in the middle of an operation, we better stop
356 // the blinking cursor.
357 if (!(cmd.action == LFUN_MOUSE_MOTION
358 && cmd.button() == mouse_button::none))
359 stopBlinkingCursor();
361 buffer_view_->mouseEventDispatch(cmd);
363 // Skip these when selecting
364 if (cmd.action != LFUN_MOUSE_MOTION) {
365 lyx_view_->updateLayoutList();
366 lyx_view_->updateToolbars();
369 // GUI tweaks except with mouse motion with no button pressed.
370 if (!(cmd.action == LFUN_MOUSE_MOTION
371 && cmd.button() == mouse_button::none)) {
372 // Slight hack: this is only called currently when we
373 // clicked somewhere, so we force through the display
374 // of the new status here.
375 lyx_view_->clearMessage();
377 // Show the cursor immediately after any operation.
378 startBlinkingCursor();
383 void GuiWorkArea::resizeBufferView()
385 // WARNING: Please don't put any code that will trigger a repaint here!
386 // We are already inside a paint event.
387 lyx_view_->setBusy(true);
388 buffer_view_->resize(viewport()->width(), viewport()->height());
389 lyx_view_->updateLayoutList();
390 lyx_view_->setBusy(false);
391 need_resize_ = false;
395 void GuiWorkArea::showCursor()
400 CursorShape shape = BAR_SHAPE;
402 Font const & realfont = buffer_view_->cursor().real_current_font;
403 BufferParams const & bp = buffer_view_->buffer().params();
404 bool const samelang = realfont.language() == bp.language;
405 bool const isrtl = realfont.isVisibleRightToLeft();
407 if (!samelang || isrtl != bp.language->rightToLeft()) {
410 shape = REVERSED_L_SHAPE;
413 // The ERT language hack needs fixing up
414 if (realfont.language() == latex_language)
417 Font const font = buffer_view_->cursor().getFont();
418 FontMetrics const & fm = theFontMetrics(font);
419 int const asc = fm.maxAscent();
420 int const des = fm.maxDescent();
424 buffer_view_->cursor().getPos(x, y);
427 // if it doesn't touch the screen, don't try to show it
428 if (y + h < 0 || y >= viewport()->height())
431 cursor_visible_ = true;
432 showCursor(x, y, h, shape);
436 void GuiWorkArea::hideCursor()
438 if (!cursor_visible_)
441 cursor_visible_ = false;
446 void GuiWorkArea::toggleCursor()
453 // Use this opportunity to deal with any child processes that
454 // have finished but are waiting to communicate this fact
455 // to the rest of LyX.
456 ForkedCallsController::handleCompletedProcesses();
460 void GuiWorkArea::updateScrollbar()
462 verticalScrollBar()->setTracking(false);
464 ScrollbarParameters const & scroll_ = buffer_view_->scrollbarParameters();
466 // do what cursor movement does (some grey)
467 int const h = scroll_.height + viewport()->height() / 4;
468 int scroll_max_ = max(0, h - viewport()->height());
470 verticalScrollBar()->setRange(0, scroll_max_);
471 verticalScrollBar()->setSliderPosition(scroll_.position);
472 verticalScrollBar()->setSingleStep(scroll_.lineScrollHeight);
473 verticalScrollBar()->setValue(scroll_.position);
475 verticalScrollBar()->setTracking(true);
479 void GuiWorkArea::adjustViewWithScrollBar(int action)
481 stopBlinkingCursor();
482 // QToolTip::hideText();
483 if (action == QAbstractSlider::SliderPageStepAdd)
484 buffer_view_->scrollDown(viewport()->height());
485 else if (action == QAbstractSlider::SliderPageStepSub)
486 buffer_view_->scrollUp(viewport()->height());
488 buffer_view_->scrollDocView(verticalScrollBar()->sliderPosition());
490 if (lyxrc.cursor_follows_scrollbar) {
491 buffer_view_->setCursorFromScrollbar();
492 lyx_view_->updateLayoutList();
495 lyxerr << "QCursor::pos() = "
496 << QCursor::pos().x() << " "
497 << QCursor::pos().y() << " "
499 QToolTip::showText(QCursor::pos(), "toto"), verticalScrollBar());
501 // Show the cursor immediately after any operation.
502 startBlinkingCursor();
503 QApplication::syncX();
507 bool GuiWorkArea::event(QEvent * e)
509 if (e->type() == QEvent::ToolTip) {
510 QHelpEvent * helpEvent = static_cast<QHelpEvent *>(e);
511 QPoint pos = helpEvent->pos();
512 if (pos.x() < viewport()->width()) {
513 QString s = toqstr(buffer_view_->toolTip(pos.x(), pos.y()));
514 QToolTip::showText(helpEvent->globalPos(), s);
517 QToolTip::hideText();
519 return QAbstractScrollArea::event(e);
523 void GuiWorkArea::focusInEvent(QFocusEvent * /*event*/)
525 // Repaint the whole screen.
526 // Note: this is different from redraw() as only the backing pixmap
527 // will be redrawn, which is cheap.
528 viewport()->repaint();
530 startBlinkingCursor();
534 void GuiWorkArea::focusOutEvent(QFocusEvent * /*event*/)
536 stopBlinkingCursor();
540 void GuiWorkArea::mousePressEvent(QMouseEvent * e)
542 if (dc_event_.active && dc_event_ == *e) {
543 dc_event_.active = false;
544 FuncRequest cmd(LFUN_MOUSE_TRIPLE, e->x(), e->y(),
545 q_button_state(e->button()));
550 inputContext()->reset();
552 FuncRequest const cmd(LFUN_MOUSE_PRESS, e->x(), e->y(),
553 q_button_state(e->button()));
554 dispatch(cmd, q_key_state(e->modifiers()));
558 void GuiWorkArea::mouseReleaseEvent(QMouseEvent * e)
560 if (synthetic_mouse_event_.timeout.running())
561 synthetic_mouse_event_.timeout.stop();
563 FuncRequest const cmd(LFUN_MOUSE_RELEASE, e->x(), e->y(),
564 q_button_state(e->button()));
569 void GuiWorkArea::mouseMoveEvent(QMouseEvent * e)
571 // we kill the triple click if we move
572 doubleClickTimeout();
573 FuncRequest cmd(LFUN_MOUSE_MOTION, e->x(), e->y(),
574 q_motion_state(e->buttons()));
576 // If we're above or below the work area...
577 if (e->y() <= 20 || e->y() >= viewport()->height() - 20) {
578 // Make sure only a synthetic event can cause a page scroll,
579 // so they come at a steady rate:
581 // _Force_ a scroll up:
584 cmd.y = viewport()->height();
585 // Store the event, to be handled when the timeout expires.
586 synthetic_mouse_event_.cmd = cmd;
588 if (synthetic_mouse_event_.timeout.running())
589 // Discard the event. Note that it _may_ be handled
590 // when the timeout expires if
591 // synthetic_mouse_event_.cmd has not been overwritten.
592 // Ie, when the timeout expires, we handle the
593 // most recent event but discard all others that
594 // occurred after the one used to start the timeout
595 // in the first place.
598 synthetic_mouse_event_.restart_timeout = true;
599 synthetic_mouse_event_.timeout.start();
600 // Fall through to handle this event...
603 } else if (synthetic_mouse_event_.timeout.running()) {
604 // Store the event, to be possibly handled when the timeout
606 // Once the timeout has expired, normal control is returned
607 // to mouseMoveEvent (restart_timeout = false).
608 // This results in a much smoother 'feel' when moving the
609 // mouse back into the work area.
610 synthetic_mouse_event_.cmd = cmd;
611 synthetic_mouse_event_.restart_timeout = false;
615 // Has anything changed on-screen since the last QMouseEvent
617 double const scrollbar_value = verticalScrollBar()->value();
618 if (e->x() != synthetic_mouse_event_.x_old ||
619 e->y() != synthetic_mouse_event_.y_old ||
620 scrollbar_value != synthetic_mouse_event_.scrollbar_value_old) {
621 // Yes it has. Store the params used to check this.
622 synthetic_mouse_event_.x_old = e->x();
623 synthetic_mouse_event_.y_old = e->y();
624 synthetic_mouse_event_.scrollbar_value_old = scrollbar_value;
626 // ... and dispatch the event to the LyX core.
632 void GuiWorkArea::wheelEvent(QWheelEvent * e)
634 // Wheel rotation by one notch results in a delta() of 120 (see
635 // documentation of QWheelEvent)
636 int const lines = qApp->wheelScrollLines() * e->delta() / 120;
637 verticalScrollBar()->setValue(verticalScrollBar()->value() -
638 lines * verticalScrollBar()->singleStep());
639 adjustViewWithScrollBar();
643 void GuiWorkArea::generateSyntheticMouseEvent()
645 // Set things off to generate the _next_ 'pseudo' event.
646 if (synthetic_mouse_event_.restart_timeout)
647 synthetic_mouse_event_.timeout.start();
649 // Has anything changed on-screen since the last timeout signal
651 double const scrollbar_value = verticalScrollBar()->value();
652 if (scrollbar_value != synthetic_mouse_event_.scrollbar_value_old) {
653 // Yes it has. Store the params used to check this.
654 synthetic_mouse_event_.scrollbar_value_old = scrollbar_value;
656 // ... and dispatch the event to the LyX core.
657 dispatch(synthetic_mouse_event_.cmd);
662 void GuiWorkArea::keyPressEvent(QKeyEvent * ev)
664 // do nothing if there are other events
665 // (the auto repeated events come too fast)
666 // \todo FIXME: remove hard coded Qt keys, process the key binding
668 if (XEventsQueued(QX11Info::display(), 0) > 1 && ev->isAutoRepeat()
669 && (Qt::Key_PageDown || Qt::Key_PageUp)) {
670 LYXERR(Debug::KEY, "system is busy: scroll key event ignored");
676 LYXERR(Debug::KEY, " count: " << ev->count()
677 << " text: " << fromqstr(ev->text())
678 << " isAutoRepeat: " << ev->isAutoRepeat() << " key: " << ev->key());
681 setKeySymbol(&sym, ev);
682 processKeySym(sym, q_key_state(ev->modifiers()));
686 void GuiWorkArea::doubleClickTimeout()
688 dc_event_.active = false;
692 void GuiWorkArea::mouseDoubleClickEvent(QMouseEvent * ev)
694 dc_event_ = DoubleClick(ev);
695 QTimer::singleShot(QApplication::doubleClickInterval(), this,
696 SLOT(doubleClickTimeout()));
697 FuncRequest cmd(LFUN_MOUSE_DOUBLE,
699 q_button_state(ev->button()));
704 void GuiWorkArea::resizeEvent(QResizeEvent * ev)
706 QAbstractScrollArea::resizeEvent(ev);
711 void GuiWorkArea::update(int x, int y, int w, int h)
713 viewport()->repaint(x, y, w, h);
717 void GuiWorkArea::paintEvent(QPaintEvent * ev)
719 QRect const rc = ev->rect();
720 // LYXERR(Debug::PAINTING, "paintEvent begin: x: " << rc.x()
721 // << " y: " << rc.y() << " w: " << rc.width() << " h: " << rc.height());
724 verticalScrollBar()->setPageStep(viewport()->height());
725 screen_ = QPixmap(viewport()->width(), viewport()->height());
732 QPainter pain(viewport());
733 pain.drawPixmap(rc, screen_, rc);
738 void GuiWorkArea::updateScreen()
740 GuiPainter pain(&screen_);
741 buffer_view_->draw(pain);
745 void GuiWorkArea::showCursor(int x, int y, int h, CursorShape shape)
747 if (schedule_redraw_) {
748 buffer_view_->updateMetrics();
750 viewport()->update(QRect(0, 0, viewport()->width(), viewport()->height()));
751 schedule_redraw_ = false;
752 // Show the cursor immediately after the update.
758 cursor_->update(x, y, h, shape);
760 viewport()->update(cursor_->rect());
764 void GuiWorkArea::removeCursor()
767 //if (!qApp->focusWidget())
768 viewport()->update(cursor_->rect());
772 void GuiWorkArea::inputMethodEvent(QInputMethodEvent * e)
774 QString const & commit_string = e->commitString();
775 docstring const & preedit_string
776 = qstring_to_ucs4(e->preeditString());
778 if (!commit_string.isEmpty()) {
780 LYXERR(Debug::KEY, "preeditString: " << fromqstr(e->preeditString())
781 << " commitString: " << fromqstr(e->commitString()));
785 // FIXME Iwami 04/01/07: we should take care also of UTF16 surrogates here.
786 for (int i = 0; i != commit_string.size(); ++i) {
787 QKeyEvent ev(QEvent::KeyPress, key, Qt::NoModifier, commit_string[i]);
792 // Hide the cursor during the kana-kanji transformation.
793 if (preedit_string.empty())
794 startBlinkingCursor();
796 stopBlinkingCursor();
798 // last_width : for checking if last preedit string was/wasn't empty.
799 static bool last_width = false;
800 if (!last_width && preedit_string.empty()) {
801 // if last_width is last length of preedit string.
806 GuiPainter pain(&screen_);
807 buffer_view_->updateMetrics();
808 buffer_view_->draw(pain);
809 FontInfo font = buffer_view_->cursor().getFont().fontInfo();
810 FontMetrics const & fm = theFontMetrics(font);
811 int height = fm.maxHeight();
812 int cur_x = cursor_->rect().left();
813 int cur_y = cursor_->rect().bottom();
815 // redraw area of preedit string.
816 update(0, cur_y - height, viewport()->width(),
817 (height + 1) * preedit_lines_);
819 if (preedit_string.empty()) {
827 // att : stores an IM attribute.
828 QList<QInputMethodEvent::Attribute> const & att = e->attributes();
830 // get attributes of input method cursor.
831 // cursor_pos : cursor position in preedit string.
832 size_t cursor_pos = 0;
833 bool cursor_is_visible = false;
834 for (int i = 0; i != att.size(); ++i) {
835 if (att.at(i).type == QInputMethodEvent::Cursor) {
836 cursor_pos = att.at(i).start;
837 cursor_is_visible = att.at(i).length != 0;
842 size_t preedit_length = preedit_string.length();
844 // get position of selection in input method.
845 // FIXME: isn't there a way to do this simplier?
846 // rStart : cursor position in selected string in IM.
848 // rLength : selected string length in IM.
850 if (cursor_pos < preedit_length) {
851 for (int i = 0; i != att.size(); ++i) {
852 if (att.at(i).type == QInputMethodEvent::TextFormat) {
853 if (att.at(i).start <= int(cursor_pos)
854 && int(cursor_pos) < att.at(i).start + att.at(i).length) {
855 rStart = att.at(i).start;
856 rLength = att.at(i).length;
857 if (!cursor_is_visible)
858 cursor_pos += rLength;
869 int const right_margin = rightMargin();
870 Painter::preedit_style ps;
871 // Most often there would be only one line:
873 for (size_t pos = 0; pos != preedit_length; ++pos) {
874 char_type const typed_char = preedit_string[pos];
875 // reset preedit string style
876 ps = Painter::preedit_default;
878 // if we reached the right extremity of the screen, go to next line.
879 if (cur_x + fm.width(typed_char) > viewport()->width() - right_margin) {
880 cur_x = right_margin;
884 // preedit strings are displayed with dashed underline
885 // and partial strings are displayed white on black indicating
886 // that we are in selecting mode in the input method.
887 // FIXME: rLength == preedit_length is not a changing condition
888 // FIXME: should be put out of the loop.
890 && pos < rStart + rLength
891 && !(cursor_pos < rLength && rLength == preedit_length))
892 ps = Painter::preedit_selecting;
894 if (pos == cursor_pos
895 && (cursor_pos < rLength && rLength == preedit_length))
896 ps = Painter::preedit_cursor;
898 // draw one character and update cur_x.
899 cur_x += pain.preeditText(cur_x, cur_y, typed_char, font, ps);
902 // update the preedit string screen area.
903 update(0, cur_y - preedit_lines_*height, viewport()->width(),
904 (height + 1) * preedit_lines_);
906 // Don't forget to accept the event!
911 QVariant GuiWorkArea::inputMethodQuery(Qt::InputMethodQuery query) const
913 QRect cur_r(0,0,0,0);
915 // this is the CJK-specific composition window position.
916 case Qt::ImMicroFocus:
917 cur_r = cursor_->rect();
918 if (preedit_lines_ != 1)
920 cur_r.moveBottom(cur_r.bottom() + cur_r.height() * preedit_lines_);
921 // return lower right of cursor in LyX.
924 return QWidget::inputMethodQuery(query);
929 void GuiWorkArea::updateWindowTitle()
931 docstring maximize_title;
932 docstring minimize_title;
934 Buffer & buf = buffer_view_->buffer();
935 FileName const fileName = buf.fileName();
936 if (!fileName.empty()) {
937 maximize_title = fileName.displayName(30);
938 minimize_title = from_utf8(fileName.onlyFileName());
939 if (!buf.isClean()) {
940 maximize_title += _(" (changed)");
941 minimize_title += char_type('*');
943 if (buf.isReadonly())
944 maximize_title += _(" (read only)");
947 QString title = windowTitle();
948 QString new_title = toqstr(maximize_title);
949 if (title == new_title)
952 QWidget::setWindowTitle(new_title);
953 QWidget::setWindowIconText(toqstr(minimize_title));
958 void GuiWorkArea::setReadOnly(bool)
961 if (this == lyx_view_->currentWorkArea())
962 lyx_view_->updateBufferDependent(false);
966 ////////////////////////////////////////////////////////////////////
970 ////////////////////////////////////////////////////////////////////
972 TabWorkArea::TabWorkArea(QWidget * parent) : QTabWidget(parent)
974 QPalette pal = palette();
975 pal.setColor(QPalette::Active, QPalette::Button,
976 pal.color(QPalette::Active, QPalette::Window));
977 pal.setColor(QPalette::Disabled, QPalette::Button,
978 pal.color(QPalette::Disabled, QPalette::Window));
979 pal.setColor(QPalette::Inactive, QPalette::Button,
980 pal.color(QPalette::Inactive, QPalette::Window));
982 QToolButton * closeTabButton = new QToolButton(this);
983 closeTabButton->setPalette(pal);
984 closeTabButton->setIcon(QIcon(":/images/closetab.png"));
985 closeTabButton->setText("Close");
986 closeTabButton->setAutoRaise(true);
987 closeTabButton->setCursor(Qt::ArrowCursor);
988 closeTabButton->setToolTip(tr("Close tab"));
989 closeTabButton->setEnabled(true);
991 QObject::connect(this, SIGNAL(currentChanged(int)),
992 this, SLOT(on_currentTabChanged(int)));
993 QObject::connect(closeTabButton, SIGNAL(clicked()),
994 this, SLOT(closeCurrentTab()));
996 setCornerWidget(closeTabButton);
997 setUsesScrollButtons(true);
1001 void TabWorkArea::showBar(bool show)
1003 tabBar()->setEnabled(show);
1004 tabBar()->setVisible(show);
1008 GuiWorkArea * TabWorkArea::currentWorkArea()
1013 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(currentWidget());
1019 GuiWorkArea * TabWorkArea::workArea(Buffer & buffer)
1021 for (int i = 0; i != count(); ++i) {
1022 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(i));
1024 if (&wa->bufferView().buffer() == &buffer)
1031 void TabWorkArea::closeAll()
1034 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(0));
1042 bool TabWorkArea::setCurrentWorkArea(GuiWorkArea * work_area)
1044 BOOST_ASSERT(work_area);
1045 int index = indexOf(work_area);
1049 if (index == currentIndex())
1050 // Make sure the work area is up to date.
1051 on_currentTabChanged(index);
1053 // Switch to the work area.
1054 setCurrentIndex(index);
1055 work_area->setFocus();
1061 GuiWorkArea * TabWorkArea::addWorkArea(Buffer & buffer, GuiView & view)
1063 GuiWorkArea * wa = new GuiWorkArea(buffer, view);
1064 wa->setUpdatesEnabled(false);
1065 // Hide tabbar if there's no tab (avoid a resize and a flashing tabbar
1066 // when hiding it again below).
1067 showBar(count() > 0);
1068 addTab(wa, wa->windowTitle());
1069 QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
1070 this, SLOT(updateTabText(GuiWorkArea *)));
1071 // Hide tabbar if there's only one tab.
1072 showBar(count() > 1);
1077 bool TabWorkArea::removeWorkArea(GuiWorkArea * work_area)
1079 BOOST_ASSERT(work_area);
1080 int index = indexOf(work_area);
1084 work_area->setUpdatesEnabled(false);
1089 // make sure the next work area is enabled.
1090 currentWidget()->setUpdatesEnabled(true);
1091 // Hide tabbar if there's only one tab.
1092 showBar(count() > 1);
1098 void TabWorkArea::on_currentTabChanged(int i)
1100 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(i));
1102 BufferView & bv = wa->bufferView();
1103 bv.cursor().fixIfBroken();
1105 wa->setUpdatesEnabled(true);
1109 currentWorkAreaChanged(wa);
1111 LYXERR(Debug::GUI, "currentTabChanged " << i
1112 << "File" << bv.buffer().absFileName());
1116 void TabWorkArea::closeCurrentTab()
1118 lyx::dispatch(FuncRequest(LFUN_BUFFER_CLOSE));
1122 void TabWorkArea::updateTabText(GuiWorkArea * wa)
1124 int const i = indexOf(wa);
1127 setTabText(i, wa->windowTitle());
1130 } // namespace frontend
1133 #include "GuiWorkArea_moc.cpp"