]> git.lyx.org Git - lyx.git/blobdiff - src/frontends/qt4/GuiWorkArea.cpp
Do not show master's errors if compiling child
[lyx.git] / src / frontends / qt4 / GuiWorkArea.cpp
index f50308f6d6498187e020ae2046ef7348490cabdd..8bf5242b33cc6f1ff1ced7bccf6d8658bde90d3d 100644 (file)
@@ -212,7 +212,7 @@ public:
        int cursorWidth() const { return cursor_width_; }
        void recomputeWidth() {
                cursor_width_ = lyxrc.cursor_width
-                       ? lyxrc.cursor_width 
+                       ? lyxrc.cursor_width
                        : 1 + int((lyxrc.currentZoom + 50) / 200.0);
        }
 
@@ -233,7 +233,7 @@ private:
        QRect rect_;
        /// x position (were the vertical line is drawn)
        int x_;
-       
+
        int cursor_width_;
 };
 
@@ -250,21 +250,23 @@ GuiWorkArea::Private::Private(GuiWorkArea * parent)
   cursor_visible_(false), cursor_(0),
   need_resize_(false), schedule_redraw_(false), preedit_lines_(1),
   pixel_ratio_(1.0),
-  completer_(new GuiCompleter(p, p)), dialog_mode_(false),
+  completer_(new GuiCompleter(p, p)), dialog_mode_(false), shell_escape_(false),
   read_only_(false), clean_(true), externally_modified_(false)
 {
 }
 
 
 GuiWorkArea::GuiWorkArea(QWidget * /* w */)
-: d(new Private(this)) 
+: d(new Private(this))
 {
+       new CompressorProxy(this); // not a leak
 }
 
 
 GuiWorkArea::GuiWorkArea(Buffer & buffer, GuiView & gv)
 : d(new Private(this))
 {
+       new CompressorProxy(this); // not a leak
        setGuiView(gv);
        buffer.params().display_pixel_ratio = theGuiApp()->pixelRatio();
        setBuffer(buffer);
@@ -320,13 +322,10 @@ void GuiWorkArea::init()
 
        d->setCursorShape(Qt::IBeamCursor);
 
-       d->synthetic_mouse_event_.timeout.timeout.connect(
-               bind(&GuiWorkArea::generateSyntheticMouseEvent,
-                                       this));
-
-       // Initialize the vertical Scroll Bar
-       QObject::connect(verticalScrollBar(), SIGNAL(valueChanged(int)),
-               this, SLOT(scrollTo(int)));
+       // This connection is closed at the same time as this is destroyed.
+       d->synthetic_mouse_event_.timeout.timeout.connect([this](){
+                       generateSyntheticMouseEvent();
+               });
 
        LYXERR(Debug::GUI, "viewport width: " << viewport()->width()
                << "  viewport height: " << viewport()->height());
@@ -369,7 +368,7 @@ void GuiWorkArea::Private::setCursorShape(Qt::CursorShape shape)
 
 void GuiWorkArea::Private::updateCursorShape()
 {
-       setCursorShape(buffer_view_->clickableInset() 
+       setCursorShape(buffer_view_->clickableInset()
                ? Qt::PointingHandCursor : Qt::IBeamCursor);
 }
 
@@ -674,14 +673,18 @@ void GuiWorkArea::toggleCursor()
 
 void GuiWorkArea::Private::updateScrollbar()
 {
+       // Prevent setRange() and setSliderPosition from causing recursive calls via
+       // the signal valueChanged. (#10311)
+       QObject::disconnect(p->verticalScrollBar(), SIGNAL(valueChanged(int)),
+                           p, SLOT(scrollTo(int)));
        ScrollbarParameters const & scroll_ = buffer_view_->scrollbarParameters();
-       // Block signals to prevent setRange() and setSliderPosition from causing
-       // recursive calls via the signal valueChanged. (#10311)
-       QSignalBlocker blocker(p->verticalScrollBar());
        p->verticalScrollBar()->setRange(scroll_.min, scroll_.max);
        p->verticalScrollBar()->setPageStep(scroll_.page_step);
        p->verticalScrollBar()->setSingleStep(scroll_.single_step);
        p->verticalScrollBar()->setSliderPosition(0);
+       // Connect to the vertical scroll bar
+       QObject::connect(p->verticalScrollBar(), SIGNAL(valueChanged(int)),
+                        p, SLOT(scrollTo(int)));
 }
 
 
@@ -774,9 +777,9 @@ void GuiWorkArea::contextMenuEvent(QContextMenuEvent * e)
                }
                name = d->buffer_view_->contextMenu(pos.x(), pos.y());
        }
-       
+
        if (name.empty()) {
-               QAbstractScrollArea::contextMenuEvent(e);
+               e->accept();
                return;
        }
        // always show mnemonics when the keyboard is used to show the context menu
@@ -784,7 +787,7 @@ void GuiWorkArea::contextMenuEvent(QContextMenuEvent * e)
        bool const keyboard = (e->reason() == QContextMenuEvent::Keyboard);
        QMenu * menu = guiApp->menus().menu(toqstr(name), *d->lyx_view_, keyboard);
        if (!menu) {
-               QAbstractScrollArea::contextMenuEvent(e);
+               e->accept();
                return;
        }
        // Position the menu to the right.
@@ -890,7 +893,7 @@ void GuiWorkArea::mouseMoveEvent(QMouseEvent * e)
                        // in the first place.
                        return;
                }
-               
+
                d->synthetic_mouse_event_.restart_timeout = true;
                d->synthetic_mouse_event_.timeout.start();
                // Fall through to handle this event...
@@ -975,7 +978,7 @@ void GuiWorkArea::generateSyntheticMouseEvent()
                if (up || down) {
                        int dist = up ? -e_y : e_y - wh;
                        time = max(min(200, 250000 / (dist * dist)), 1) ;
-                       
+
                        if (time < 40) {
                                step = 80000 / (time * time);
                                time = 40;
@@ -1003,12 +1006,18 @@ void GuiWorkArea::generateSyntheticMouseEvent()
 
        // In which paragraph do we have to set the cursor ?
        Cursor & cur = d->buffer_view_->cursor();
-       // FIXME: we don't know howto handle math.
+       // FIXME: we don't know how to handle math.
        Text * text = cur.text();
        if (!text)
                return;
        TextMetrics const & tm = d->buffer_view_->textMetrics(text);
 
+       // Quit gracefully if there are no metrics, since otherwise next
+       // line would crash (bug #10324).
+       // This situation seems related to a (not yet understood) timing problem.
+       if (tm.empty())
+               return;
+
        pair<pit_type, const ParagraphMetrics *> pp = up ? tm.first() : tm.last();
        ParagraphMetrics const & pm = *pp.second;
        pit_type const pit = pp.first;
@@ -1043,6 +1052,39 @@ void GuiWorkArea::generateSyntheticMouseEvent()
 }
 
 
+// CompressorProxy adapted from Kuba Ober https://stackoverflow.com/a/21006207
+CompressorProxy::CompressorProxy(GuiWorkArea * wa) : QObject(wa), flag_(false)
+{
+       qRegisterMetaType<KeySymbol>("KeySymbol");
+       qRegisterMetaType<KeyModifier>("KeyModifier");
+       connect(wa, SIGNAL(compressKeySym(KeySymbol, KeyModifier, bool)),
+               this, SLOT(slot(KeySymbol, KeyModifier, bool)),
+               Qt::QueuedConnection);
+       connect(this, SIGNAL(signal(KeySymbol, KeyModifier)),
+               wa, SLOT(processKeySym(KeySymbol, KeyModifier)));
+}
+
+
+bool CompressorProxy::emitCheck(bool isAutoRepeat)
+{
+       flag_ = true;
+       if (isAutoRepeat)
+               QCoreApplication::sendPostedEvents(this, QEvent::MetaCall); // recurse
+       bool result = flag_;
+       flag_ = false;
+       return result;
+}
+
+
+void CompressorProxy::slot(KeySymbol sym, KeyModifier mod, bool isAutoRepeat)
+{
+       if (emitCheck(isAutoRepeat))
+               Q_EMIT signal(sym, mod);
+       else
+               LYXERR(Debug::KEY, "system is busy: autoRepeat key event ignored");
+}
+
+
 void GuiWorkArea::keyPressEvent(QKeyEvent * ev)
 {
        // this is also called for ShortcutOverride events. In this case, one must
@@ -1050,13 +1092,16 @@ void GuiWorkArea::keyPressEvent(QKeyEvent * ev)
        bool const act = (ev->type() != QEvent::ShortcutOverride);
 
        // Do not process here some keys if dialog_mode_ is set
-       if (d->dialog_mode_
+       bool const for_dialog_mode = d->dialog_mode_
                && (ev->modifiers() == Qt::NoModifier
                    || ev->modifiers() == Qt::ShiftModifier)
                && (ev->key() == Qt::Key_Escape
                    || ev->key() == Qt::Key_Enter
-                   || ev->key() == Qt::Key_Return)
-           ) {
+                   || ev->key() == Qt::Key_Return);
+       // also do not use autoRepeat to input shortcuts
+       bool const autoRepeat = ev->isAutoRepeat();
+
+       if (for_dialog_mode || (!act && autoRepeat)) {
                ev->ignore();
                return;
        }
@@ -1073,51 +1118,31 @@ void GuiWorkArea::keyPressEvent(QKeyEvent * ev)
                }
        }
 
-       // do nothing if there are other events
-       // (the auto repeated events come too fast)
-       // it looks like this is only needed on X11
-#if defined(Q_WS_X11) || defined(QPA_XCB)
-       // FIXME: this is a weird way to implement event compression. Also, this is
-       // broken with IBus.
-       if (act && qApp->hasPendingEvents() && ev->isAutoRepeat()) {
-               switch (ev->key()) {
-               case Qt::Key_PageDown:
-               case Qt::Key_PageUp:
-               case Qt::Key_Left:
-               case Qt::Key_Right:
-               case Qt::Key_Up:
-               case Qt::Key_Down:
-                       LYXERR(Debug::KEY, "system is busy: scroll key event ignored");
-                       ev->ignore();
-                       return;
-               }
-       }
-#endif
-
        KeyModifier const m = q_key_state(ev->modifiers());
 
-       std::string str;
-       if (m & ShiftModifier)
-               str += "Shift-";
-       if (m & ControlModifier)
-               str += "Control-";
-       if (m & AltModifier)
-               str += "Alt-";
-       if (m & MetaModifier)
-               str += "Meta-";
-
-       if (act)
+       if (act && lyxerr.debugging(Debug::KEY)) {
+               std::string str;
+               if (m & ShiftModifier)
+                       str += "Shift-";
+               if (m & ControlModifier)
+                       str += "Control-";
+               if (m & AltModifier)
+                       str += "Alt-";
+               if (m & MetaModifier)
+                       str += "Meta-";
                LYXERR(Debug::KEY, " count: " << ev->count() << " text: " << ev->text()
                       << " isAutoRepeat: " << ev->isAutoRepeat() << " key: " << ev->key()
                       << " keyState: " << str);
+       }
 
        KeySymbol sym;
        setKeySymbol(&sym, ev);
        if (sym.isOK()) {
                if (act) {
-                       processKeySym(sym, m);
+                       Q_EMIT compressKeySym(sym, m, autoRepeat);
                        ev->accept();
                } else
+                       // here, !autoRepeat, as determined at the beginning
                        ev->setAccepted(queryKeySym(sym, m));
        } else {
                ev->ignore();
@@ -1394,11 +1419,13 @@ void GuiWorkArea::updateWindowTitle()
 {
        Buffer const & buf = bufferView().buffer();
        if (buf.fileName() != d->file_name_
+           || buf.params().shell_escape != d->shell_escape_
            || buf.hasReadonlyFlag() != d->read_only_
            || buf.lyxvc().vcstatus() != d->vc_status_
            || buf.isClean() != d->clean_
            || buf.notifiesExternalModification() != d->externally_modified_) {
                d->file_name_ = buf.fileName();
+               d->shell_escape_ = buf.params().shell_escape;
                d->read_only_ = buf.hasReadonlyFlag();
                d->vc_status_ = buf.lyxvc().vcstatus();
                d->clean_ = buf.isClean();
@@ -1619,7 +1646,7 @@ void TabWorkArea::paintEvent(QPaintEvent * event)
        if (tabBar()->isVisible()) {
                QTabWidget::paintEvent(event);
        } else {
-               // Prevent the selected tab to influence the 
+               // Prevent the selected tab to influence the
                // painting of the frame of the tab widget.
                // This is needed for gtk style in Qt.
                QStylePainter p(this);
@@ -2229,7 +2256,7 @@ void GuiWorkAreaContainer::updateDisplay()
 {
        Buffer const & buf = wa_->bufferView().buffer();
        notificationFrame->setHidden(!buf.notifiesExternalModification());
-       QString const label = QString("<b>The file \"%1\" changed on disk.</b>")
+       QString const label = qt_("<b>The file %1 changed on disk.</b>")
                .arg(toqstr(buf.fileName().displayName()));
        externalModificationLabel->setText(label);
 }