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 if (action == QAbstractSlider::SliderPageStepAdd)
483 buffer_view_->scrollDown(viewport()->height());
484 else if (action == QAbstractSlider::SliderPageStepSub)
485 buffer_view_->scrollUp(viewport()->height());
487 buffer_view_->scrollDocView(verticalScrollBar()->sliderPosition());
489 if (lyxrc.cursor_follows_scrollbar) {
490 buffer_view_->setCursorFromScrollbar();
491 lyx_view_->updateLayoutList();
493 // Show the cursor immediately after any operation.
494 startBlinkingCursor();
495 QApplication::syncX();
499 bool GuiWorkArea::event(QEvent * e)
501 if (e->type() == QEvent::ToolTip) {
502 QHelpEvent * helpEvent = static_cast<QHelpEvent *>(e);
503 QPoint pos = helpEvent->pos();
504 if (pos.x() < viewport()->width()) {
505 QString s = toqstr(buffer_view_->toolTip(pos.x(), pos.y()));
506 QToolTip::showText(helpEvent->globalPos(), s);
509 QToolTip::hideText();
511 return QAbstractScrollArea::event(e);
515 void GuiWorkArea::focusInEvent(QFocusEvent * /*event*/)
517 // Repaint the whole screen.
518 // Note: this is different from redraw() as only the backing pixmap
519 // will be redrawn, which is cheap.
520 viewport()->repaint();
522 startBlinkingCursor();
526 void GuiWorkArea::focusOutEvent(QFocusEvent * /*event*/)
528 stopBlinkingCursor();
532 void GuiWorkArea::mousePressEvent(QMouseEvent * e)
534 if (dc_event_.active && dc_event_ == *e) {
535 dc_event_.active = false;
536 FuncRequest cmd(LFUN_MOUSE_TRIPLE, e->x(), e->y(),
537 q_button_state(e->button()));
542 inputContext()->reset();
544 FuncRequest const cmd(LFUN_MOUSE_PRESS, e->x(), e->y(),
545 q_button_state(e->button()));
546 dispatch(cmd, q_key_state(e->modifiers()));
550 void GuiWorkArea::mouseReleaseEvent(QMouseEvent * e)
552 if (synthetic_mouse_event_.timeout.running())
553 synthetic_mouse_event_.timeout.stop();
555 FuncRequest const cmd(LFUN_MOUSE_RELEASE, e->x(), e->y(),
556 q_button_state(e->button()));
561 void GuiWorkArea::mouseMoveEvent(QMouseEvent * e)
563 // we kill the triple click if we move
564 doubleClickTimeout();
565 FuncRequest cmd(LFUN_MOUSE_MOTION, e->x(), e->y(),
566 q_motion_state(e->buttons()));
568 // If we're above or below the work area...
569 if (e->y() <= 20 || e->y() >= viewport()->height() - 20) {
570 // Make sure only a synthetic event can cause a page scroll,
571 // so they come at a steady rate:
573 // _Force_ a scroll up:
576 cmd.y = viewport()->height();
577 // Store the event, to be handled when the timeout expires.
578 synthetic_mouse_event_.cmd = cmd;
580 if (synthetic_mouse_event_.timeout.running())
581 // Discard the event. Note that it _may_ be handled
582 // when the timeout expires if
583 // synthetic_mouse_event_.cmd has not been overwritten.
584 // Ie, when the timeout expires, we handle the
585 // most recent event but discard all others that
586 // occurred after the one used to start the timeout
587 // in the first place.
590 synthetic_mouse_event_.restart_timeout = true;
591 synthetic_mouse_event_.timeout.start();
592 // Fall through to handle this event...
595 } else if (synthetic_mouse_event_.timeout.running()) {
596 // Store the event, to be possibly handled when the timeout
598 // Once the timeout has expired, normal control is returned
599 // to mouseMoveEvent (restart_timeout = false).
600 // This results in a much smoother 'feel' when moving the
601 // mouse back into the work area.
602 synthetic_mouse_event_.cmd = cmd;
603 synthetic_mouse_event_.restart_timeout = false;
607 // Has anything changed on-screen since the last QMouseEvent
609 double const scrollbar_value = verticalScrollBar()->value();
610 if (e->x() != synthetic_mouse_event_.x_old ||
611 e->y() != synthetic_mouse_event_.y_old ||
612 scrollbar_value != synthetic_mouse_event_.scrollbar_value_old) {
613 // Yes it has. Store the params used to check this.
614 synthetic_mouse_event_.x_old = e->x();
615 synthetic_mouse_event_.y_old = e->y();
616 synthetic_mouse_event_.scrollbar_value_old = scrollbar_value;
618 // ... and dispatch the event to the LyX core.
624 void GuiWorkArea::wheelEvent(QWheelEvent * e)
626 // Wheel rotation by one notch results in a delta() of 120 (see
627 // documentation of QWheelEvent)
628 int const lines = qApp->wheelScrollLines() * e->delta() / 120;
629 verticalScrollBar()->setValue(verticalScrollBar()->value() -
630 lines * verticalScrollBar()->singleStep());
631 adjustViewWithScrollBar();
635 void GuiWorkArea::generateSyntheticMouseEvent()
637 // Set things off to generate the _next_ 'pseudo' event.
638 if (synthetic_mouse_event_.restart_timeout)
639 synthetic_mouse_event_.timeout.start();
641 // Has anything changed on-screen since the last timeout signal
643 double const scrollbar_value = verticalScrollBar()->value();
644 if (scrollbar_value != synthetic_mouse_event_.scrollbar_value_old) {
645 // Yes it has. Store the params used to check this.
646 synthetic_mouse_event_.scrollbar_value_old = scrollbar_value;
648 // ... and dispatch the event to the LyX core.
649 dispatch(synthetic_mouse_event_.cmd);
654 void GuiWorkArea::keyPressEvent(QKeyEvent * ev)
656 // do nothing if there are other events
657 // (the auto repeated events come too fast)
658 // \todo FIXME: remove hard coded Qt keys, process the key binding
660 if (XEventsQueued(QX11Info::display(), 0) > 1 && ev->isAutoRepeat()
661 && (Qt::Key_PageDown || Qt::Key_PageUp)) {
662 LYXERR(Debug::KEY, "system is busy: scroll key event ignored");
668 LYXERR(Debug::KEY, " count: " << ev->count()
669 << " text: " << fromqstr(ev->text())
670 << " isAutoRepeat: " << ev->isAutoRepeat() << " key: " << ev->key());
673 setKeySymbol(&sym, ev);
674 processKeySym(sym, q_key_state(ev->modifiers()));
678 void GuiWorkArea::doubleClickTimeout()
680 dc_event_.active = false;
684 void GuiWorkArea::mouseDoubleClickEvent(QMouseEvent * ev)
686 dc_event_ = DoubleClick(ev);
687 QTimer::singleShot(QApplication::doubleClickInterval(), this,
688 SLOT(doubleClickTimeout()));
689 FuncRequest cmd(LFUN_MOUSE_DOUBLE,
691 q_button_state(ev->button()));
696 void GuiWorkArea::resizeEvent(QResizeEvent * ev)
698 QAbstractScrollArea::resizeEvent(ev);
703 void GuiWorkArea::update(int x, int y, int w, int h)
705 viewport()->repaint(x, y, w, h);
709 void GuiWorkArea::paintEvent(QPaintEvent * ev)
711 QRect const rc = ev->rect();
712 // LYXERR(Debug::PAINTING, "paintEvent begin: x: " << rc.x()
713 // << " y: " << rc.y() << " w: " << rc.width() << " h: " << rc.height());
716 verticalScrollBar()->setPageStep(viewport()->height());
717 screen_ = QPixmap(viewport()->width(), viewport()->height());
724 QPainter pain(viewport());
725 pain.drawPixmap(rc, screen_, rc);
730 void GuiWorkArea::updateScreen()
732 GuiPainter pain(&screen_);
733 buffer_view_->draw(pain);
737 void GuiWorkArea::showCursor(int x, int y, int h, CursorShape shape)
739 if (schedule_redraw_) {
740 buffer_view_->updateMetrics();
742 viewport()->update(QRect(0, 0, viewport()->width(), viewport()->height()));
743 schedule_redraw_ = false;
744 // Show the cursor immediately after the update.
750 cursor_->update(x, y, h, shape);
752 viewport()->update(cursor_->rect());
756 void GuiWorkArea::removeCursor()
759 //if (!qApp->focusWidget())
760 viewport()->update(cursor_->rect());
764 void GuiWorkArea::inputMethodEvent(QInputMethodEvent * e)
766 QString const & commit_string = e->commitString();
767 docstring const & preedit_string
768 = qstring_to_ucs4(e->preeditString());
770 if (!commit_string.isEmpty()) {
772 LYXERR(Debug::KEY, "preeditString: " << fromqstr(e->preeditString())
773 << " commitString: " << fromqstr(e->commitString()));
777 // FIXME Iwami 04/01/07: we should take care also of UTF16 surrogates here.
778 for (int i = 0; i != commit_string.size(); ++i) {
779 QKeyEvent ev(QEvent::KeyPress, key, Qt::NoModifier, commit_string[i]);
784 // Hide the cursor during the kana-kanji transformation.
785 if (preedit_string.empty())
786 startBlinkingCursor();
788 stopBlinkingCursor();
790 // last_width : for checking if last preedit string was/wasn't empty.
791 static bool last_width = false;
792 if (!last_width && preedit_string.empty()) {
793 // if last_width is last length of preedit string.
798 GuiPainter pain(&screen_);
799 buffer_view_->updateMetrics();
800 buffer_view_->draw(pain);
801 FontInfo font = buffer_view_->cursor().getFont().fontInfo();
802 FontMetrics const & fm = theFontMetrics(font);
803 int height = fm.maxHeight();
804 int cur_x = cursor_->rect().left();
805 int cur_y = cursor_->rect().bottom();
807 // redraw area of preedit string.
808 update(0, cur_y - height, viewport()->width(),
809 (height + 1) * preedit_lines_);
811 if (preedit_string.empty()) {
819 // att : stores an IM attribute.
820 QList<QInputMethodEvent::Attribute> const & att = e->attributes();
822 // get attributes of input method cursor.
823 // cursor_pos : cursor position in preedit string.
824 size_t cursor_pos = 0;
825 bool cursor_is_visible = false;
826 for (int i = 0; i != att.size(); ++i) {
827 if (att.at(i).type == QInputMethodEvent::Cursor) {
828 cursor_pos = att.at(i).start;
829 cursor_is_visible = att.at(i).length != 0;
834 size_t preedit_length = preedit_string.length();
836 // get position of selection in input method.
837 // FIXME: isn't there a way to do this simplier?
838 // rStart : cursor position in selected string in IM.
840 // rLength : selected string length in IM.
842 if (cursor_pos < preedit_length) {
843 for (int i = 0; i != att.size(); ++i) {
844 if (att.at(i).type == QInputMethodEvent::TextFormat) {
845 if (att.at(i).start <= int(cursor_pos)
846 && int(cursor_pos) < att.at(i).start + att.at(i).length) {
847 rStart = att.at(i).start;
848 rLength = att.at(i).length;
849 if (!cursor_is_visible)
850 cursor_pos += rLength;
861 int const right_margin = rightMargin();
862 Painter::preedit_style ps;
863 // Most often there would be only one line:
865 for (size_t pos = 0; pos != preedit_length; ++pos) {
866 char_type const typed_char = preedit_string[pos];
867 // reset preedit string style
868 ps = Painter::preedit_default;
870 // if we reached the right extremity of the screen, go to next line.
871 if (cur_x + fm.width(typed_char) > viewport()->width() - right_margin) {
872 cur_x = right_margin;
876 // preedit strings are displayed with dashed underline
877 // and partial strings are displayed white on black indicating
878 // that we are in selecting mode in the input method.
879 // FIXME: rLength == preedit_length is not a changing condition
880 // FIXME: should be put out of the loop.
882 && pos < rStart + rLength
883 && !(cursor_pos < rLength && rLength == preedit_length))
884 ps = Painter::preedit_selecting;
886 if (pos == cursor_pos
887 && (cursor_pos < rLength && rLength == preedit_length))
888 ps = Painter::preedit_cursor;
890 // draw one character and update cur_x.
891 cur_x += pain.preeditText(cur_x, cur_y, typed_char, font, ps);
894 // update the preedit string screen area.
895 update(0, cur_y - preedit_lines_*height, viewport()->width(),
896 (height + 1) * preedit_lines_);
898 // Don't forget to accept the event!
903 QVariant GuiWorkArea::inputMethodQuery(Qt::InputMethodQuery query) const
905 QRect cur_r(0,0,0,0);
907 // this is the CJK-specific composition window position.
908 case Qt::ImMicroFocus:
909 cur_r = cursor_->rect();
910 if (preedit_lines_ != 1)
912 cur_r.moveBottom(cur_r.bottom() + cur_r.height() * preedit_lines_);
913 // return lower right of cursor in LyX.
916 return QWidget::inputMethodQuery(query);
921 void GuiWorkArea::updateWindowTitle()
923 docstring maximize_title;
924 docstring minimize_title;
926 Buffer & buf = buffer_view_->buffer();
927 FileName const fileName = buf.fileName();
928 if (!fileName.empty()) {
929 maximize_title = fileName.displayName(30);
930 minimize_title = from_utf8(fileName.onlyFileName());
931 if (!buf.isClean()) {
932 maximize_title += _(" (changed)");
933 minimize_title += char_type('*');
935 if (buf.isReadonly())
936 maximize_title += _(" (read only)");
939 QString title = windowTitle();
940 QString new_title = toqstr(maximize_title);
941 if (title == new_title)
944 QWidget::setWindowTitle(new_title);
945 QWidget::setWindowIconText(toqstr(minimize_title));
950 void GuiWorkArea::setReadOnly(bool)
953 if (this == lyx_view_->currentWorkArea())
954 lyx_view_->updateBufferDependent(false);
958 ////////////////////////////////////////////////////////////////////
962 ////////////////////////////////////////////////////////////////////
964 TabWorkArea::TabWorkArea(QWidget * parent) : QTabWidget(parent)
966 QPalette pal = palette();
967 pal.setColor(QPalette::Active, QPalette::Button,
968 pal.color(QPalette::Active, QPalette::Window));
969 pal.setColor(QPalette::Disabled, QPalette::Button,
970 pal.color(QPalette::Disabled, QPalette::Window));
971 pal.setColor(QPalette::Inactive, QPalette::Button,
972 pal.color(QPalette::Inactive, QPalette::Window));
974 QToolButton * closeTabButton = new QToolButton(this);
975 closeTabButton->setPalette(pal);
976 closeTabButton->setIcon(QIcon(":/images/closetab.png"));
977 closeTabButton->setText("Close");
978 closeTabButton->setAutoRaise(true);
979 closeTabButton->setCursor(Qt::ArrowCursor);
980 closeTabButton->setToolTip(tr("Close tab"));
981 closeTabButton->setEnabled(true);
983 QObject::connect(this, SIGNAL(currentChanged(int)),
984 this, SLOT(on_currentTabChanged(int)));
985 QObject::connect(closeTabButton, SIGNAL(clicked()),
986 this, SLOT(closeCurrentTab()));
988 setCornerWidget(closeTabButton);
989 setUsesScrollButtons(true);
993 void TabWorkArea::showBar(bool show)
995 tabBar()->setEnabled(show);
996 tabBar()->setVisible(show);
1000 GuiWorkArea * TabWorkArea::currentWorkArea()
1005 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(currentWidget());
1011 GuiWorkArea * TabWorkArea::workArea(Buffer & buffer)
1013 for (int i = 0; i != count(); ++i) {
1014 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(i));
1016 if (&wa->bufferView().buffer() == &buffer)
1023 void TabWorkArea::closeAll()
1026 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(0));
1034 bool TabWorkArea::setCurrentWorkArea(GuiWorkArea * work_area)
1036 BOOST_ASSERT(work_area);
1037 int index = indexOf(work_area);
1041 if (index == currentIndex())
1042 // Make sure the work area is up to date.
1043 on_currentTabChanged(index);
1045 // Switch to the work area.
1046 setCurrentIndex(index);
1047 work_area->setFocus();
1053 GuiWorkArea * TabWorkArea::addWorkArea(Buffer & buffer, GuiView & view)
1055 GuiWorkArea * wa = new GuiWorkArea(buffer, view);
1056 wa->setUpdatesEnabled(false);
1057 // Hide tabbar if there's no tab (avoid a resize and a flashing tabbar
1058 // when hiding it again below).
1059 showBar(count() > 0);
1060 addTab(wa, wa->windowTitle());
1061 QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
1062 this, SLOT(updateTabText(GuiWorkArea *)));
1063 // Hide tabbar if there's only one tab.
1064 showBar(count() > 1);
1069 bool TabWorkArea::removeWorkArea(GuiWorkArea * work_area)
1071 BOOST_ASSERT(work_area);
1072 int index = indexOf(work_area);
1076 work_area->setUpdatesEnabled(false);
1081 // make sure the next work area is enabled.
1082 currentWidget()->setUpdatesEnabled(true);
1083 // Hide tabbar if there's only one tab.
1084 showBar(count() > 1);
1090 void TabWorkArea::on_currentTabChanged(int i)
1092 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(widget(i));
1094 BufferView & bv = wa->bufferView();
1095 bv.cursor().fixIfBroken();
1097 wa->setUpdatesEnabled(true);
1101 currentWorkAreaChanged(wa);
1103 LYXERR(Debug::GUI, "currentTabChanged " << i
1104 << "File" << bv.buffer().absFileName());
1108 void TabWorkArea::closeCurrentTab()
1110 lyx::dispatch(FuncRequest(LFUN_BUFFER_CLOSE));
1114 void TabWorkArea::updateTabText(GuiWorkArea * wa)
1116 int const i = indexOf(wa);
1119 setTabText(i, wa->windowTitle());
1122 } // namespace frontend
1125 #include "GuiWorkArea_moc.cpp"