bool
QcMapItem::send_mouse_event(QMouseEvent * event)
{
  qInfo() << event;

  QPointF local_position = mapFromScene(event->windowPos());
  QQuickWindow * _window = window();
  QQuickItem * grabber = _window ? _window->mouseGrabberItem() : nullptr;
  // Fixme: faster ? / duplicated
  bool is_mouse_area = !grabber or QString(grabber->metaObject()->className()).startsWith(QStringLiteral("QQuickMouseArea"));
  bool steal_event = m_gesture_area->is_active(); // means pan or pinch is active

  // grabber is QQuickMouseArea, steal_event is false first then true
  // qInfo() << event << "\ngrabber" << grabber << "\nsteal_event" << steal_event << is_mouse_area;

  if (is_mouse_area and (steal_event or contains(local_position)) and (!grabber or !grabber->keepMouseGrab())) {
    QScopedPointer<QMouseEvent> mouseEvent(QQuickWindowPrivate::cloneMouseEvent(event, &local_position));
    mouseEvent->setAccepted(false);

    switch (mouseEvent->type()) {
    case QEvent::MouseMove:
      m_gesture_area->handle_mouse_move_event(mouseEvent.data());
      break;
    case QEvent::MouseButtonPress:
      m_gesture_area->handle_mouse_press_event(mouseEvent.data());
      break;
    case QEvent::MouseButtonRelease:
      m_gesture_area->handle_mouse_release_event(mouseEvent.data());
      break;
    default:
      break;
    }

    steal_event = m_gesture_area->is_active(); // recheck value
    // Fixme: duplicated code ???
    grabber = _window ? _window->mouseGrabberItem() : nullptr;
    // qInfo() << "grabber" << grabber << "\nsteal_event" << steal_event;

    if (grabber and steal_event and !grabber->keepMouseGrab() and grabber != this) {
      // qInfo() << "grab mouse";
      grabMouse();
    }

    if (steal_event) {
      event->setAccepted(true);
      return true; // do not deliver event
    } else
      return false; // deliver event

  } else {
    // ungrab if necessary and deliver event
    if (event->type() == QEvent::MouseButtonRelease
        and (_window and _window->mouseGrabberItem() == this))
      // qInfo() << "ungrab mouse";
      ungrabMouse();
    return false; // deliver event
  }
}
Example #2
0
bool QQuickMouseArea::sendMouseEvent(QMouseEvent *event)
{
    Q_D(QQuickMouseArea);
    QPointF localPos = mapFromScene(event->windowPos());

    QQuickWindow *c = window();
    QQuickItem *grabber = c ? c->mouseGrabberItem() : 0;
    bool stealThisEvent = d->stealMouse;
    if ((stealThisEvent || contains(localPos)) && (!grabber || !grabber->keepMouseGrab())) {
        QMouseEvent mouseEvent(event->type(), localPos, event->windowPos(), event->screenPos(),
                               event->button(), event->buttons(), event->modifiers());
        mouseEvent.setAccepted(false);

        switch (event->type()) {
        case QEvent::MouseMove:
            mouseMoveEvent(&mouseEvent);
            break;
        case QEvent::MouseButtonPress:
            mousePressEvent(&mouseEvent);
            break;
        case QEvent::MouseButtonRelease:
            mouseReleaseEvent(&mouseEvent);
            stealThisEvent = d->stealMouse;
            break;
        default:
            break;
        }
        grabber = c ? c->mouseGrabberItem() : 0;
        if (grabber && stealThisEvent && !grabber->keepMouseGrab() && grabber != this)
            grabMouse();

        return stealThisEvent;
    }
    if (event->type() == QEvent::MouseButtonRelease) {
        if (d->pressed) {
            d->pressed &= ~event->button();
            emit pressedButtonsChanged();
            if (!d->pressed) {
                // no other buttons are pressed
                d->stealMouse = false;
                if (c && c->mouseGrabberItem() == this)
                    ungrabMouse();
                emit canceled();
                emit pressedChanged();
                emit containsPressChanged();
                if (d->hovered) {
                    d->hovered = false;
                    emit hoveredChanged();
                }
            }
        }
    }
    return false;
}
Example #3
0
void QQuickMultiPointTouchArea::touchEvent(QTouchEvent *event)
{
    switch (event->type()) {
    case QEvent::TouchBegin:
    case QEvent::TouchUpdate:
    case QEvent::TouchEnd: {
        //if e.g. a parent Flickable has the mouse grab, don't process the touch events
        QQuickWindow *c = window();
        QQuickItem *grabber = c ? c->mouseGrabberItem() : 0;
        if (grabber && grabber != this && grabber->keepMouseGrab() && grabber->isEnabled()) {
            QQuickItem *item = this;
            while ((item = item->parentItem())) {
                if (item == grabber)
                    return;
            }
        }
        updateTouchData(event);
        if (event->type() == QEvent::TouchEnd)
            ungrab();
        break;
    }
    case QEvent::TouchCancel:
        ungrab();
        break;
    default:
        QQuickItem::touchEvent(event);
        break;
    }
}
Example #4
0
bool QQuickMultiPointTouchArea::sendMouseEvent(QMouseEvent *event)
{
    QPointF localPos = mapFromScene(event->windowPos());

    QQuickWindow *c = window();
    QQuickItem *grabber = c ? c->mouseGrabberItem() : 0;
    bool stealThisEvent = _stealMouse;
    if ((stealThisEvent || contains(localPos)) && (!grabber || !grabber->keepMouseGrab())) {
        QMouseEvent mouseEvent(event->type(), localPos, event->windowPos(), event->screenPos(),
                               event->button(), event->buttons(), event->modifiers());
        mouseEvent.setAccepted(false);
        QGuiApplicationPrivate::setMouseEventCapsAndVelocity(&mouseEvent,
                                                             QGuiApplicationPrivate::mouseEventCaps(event),
                                                             QGuiApplicationPrivate::mouseEventVelocity(event));
        QGuiApplicationPrivate::setMouseEventSource(&mouseEvent, Qt::MouseEventSynthesizedByQt);

        switch (mouseEvent.type()) {
        case QEvent::MouseMove:
            mouseMoveEvent(&mouseEvent);
            break;
        case QEvent::MouseButtonPress:
            mousePressEvent(&mouseEvent);
            break;
        case QEvent::MouseButtonRelease:
            mouseReleaseEvent(&mouseEvent);
            break;
        default:
            break;
        }
        grabber = c ? c->mouseGrabberItem() : 0;
        if (grabber && stealThisEvent && !grabber->keepMouseGrab() && grabber != this)
            grabMouse();

        return stealThisEvent;
    }
    if (event->type() == QEvent::MouseButtonRelease) {
        _stealMouse = false;
        if (c && c->mouseGrabberItem() == this)
            ungrabMouse();
        setKeepMouseGrab(false);
    }
    return false;
}
Example #5
0
bool QQuickMultiPointTouchArea::shouldFilter(QEvent *event)
{
    QQuickWindow *c = window();
    QQuickItem *grabber = c ? c->mouseGrabberItem() : 0;
    bool disabledItem = grabber && !grabber->isEnabled();
    bool stealThisEvent = _stealMouse;
    bool containsPoint = false;
    if (!stealThisEvent) {
        switch (event->type()) {
        case QEvent::MouseButtonPress:
        case QEvent::MouseMove:
        case QEvent::MouseButtonRelease: {
                QMouseEvent *me = static_cast<QMouseEvent*>(event);
                containsPoint = contains(mapFromScene(me->windowPos()));
            }
            break;
        case QEvent::TouchBegin:
        case QEvent::TouchUpdate:
        case QEvent::TouchEnd: {
                QTouchEvent *te = static_cast<QTouchEvent*>(event);
                for (const QTouchEvent::TouchPoint &point : te->touchPoints()) {
                    if (contains(mapFromScene(point.scenePos()))) {
                        containsPoint = true;
                        break;
                    }
                }
            }
            break;
        default:
            break;
        }
    }
    if ((stealThisEvent || containsPoint) && (!grabber || !grabber->keepMouseGrab() || disabledItem)) {
        return true;
    }
    ungrab();
    return false;
}