C++ PointerEvent::getID方法代码示例

void Web3DOverlay::handlePointerEventAsTouch(const PointerEvent& event) {
    if (!_webSurface) {
        return;
    }

    //do not send secondary button events to tablet
    if (event.getButton() == PointerEvent::SecondaryButton ||
        //do not block composed events
        event.getButtons() == PointerEvent::SecondaryButton) {
        return;
    }


    QPointF windowPoint;
    {
        glm::vec2 windowPos = event.getPos2D() * (METERS_TO_INCHES * _dpi);
        windowPoint = QPointF(windowPos.x, windowPos.y);
    }

    Qt::TouchPointState state = Qt::TouchPointStationary;
    if (event.getType() == PointerEvent::Press && event.getButton() == PointerEvent::PrimaryButton) {
        state = Qt::TouchPointPressed;
    } else if (event.getType() == PointerEvent::Release) {
        state = Qt::TouchPointReleased;
    } else if (_activeTouchPoints.count(event.getID()) && windowPoint != _activeTouchPoints[event.getID()].pos()) {
        state = Qt::TouchPointMoved;
    }

    QEvent::Type touchType = QEvent::TouchUpdate;
    if (_activeTouchPoints.empty()) {
        // If the first active touch point is being created, send a begin
        touchType = QEvent::TouchBegin;
    } if (state == Qt::TouchPointReleased && _activeTouchPoints.size() == 1 && _activeTouchPoints.count(event.getID())) {
        // If the last active touch point is being released, send an end
        touchType = QEvent::TouchEnd;
    } 

    {
        QTouchEvent::TouchPoint point;
        point.setId(event.getID());
        point.setState(state);
        point.setPos(windowPoint);
        point.setScreenPos(windowPoint);
        _activeTouchPoints[event.getID()] = point;
    }

    QTouchEvent touchEvent(touchType, &_touchDevice, event.getKeyboardModifiers());
    {
        QList<QTouchEvent::TouchPoint> touchPoints;
        Qt::TouchPointStates touchPointStates;
        for (const auto& entry : _activeTouchPoints) {
            touchPointStates |= entry.second.state();
            touchPoints.push_back(entry.second);
        }

        touchEvent.setWindow(_webSurface->getWindow());
        touchEvent.setTarget(_webSurface->getRootItem());
        touchEvent.setTouchPoints(touchPoints);
        touchEvent.setTouchPointStates(touchPointStates);
    }

    // Send mouse events to the Web surface so that HTML dialog elements work with mouse press and hover.
    // FIXME: Scroll bar dragging is a bit unstable in the tablet (content can jump up and down at times).
    // This may be improved in Qt 5.8. Release notes: "Cleaned up touch and mouse event delivery".
    //
    // In Qt 5.9 mouse events must be sent before touch events to make sure some QtQuick components will
    // receive mouse events
    Qt::MouseButton button = Qt::NoButton;
    Qt::MouseButtons buttons = Qt::NoButton;
    if (event.getButton() == PointerEvent::PrimaryButton) {
        button = Qt::LeftButton;
    }
    if (event.getButtons() & PointerEvent::PrimaryButton) {
        buttons |= Qt::LeftButton;
    }

#if QT_VERSION >= QT_VERSION_CHECK(5, 9, 0)
    if (event.getType() == PointerEvent::Move) {
        QMouseEvent mouseEvent(QEvent::MouseMove, windowPoint, windowPoint, windowPoint, button, buttons, Qt::NoModifier);
        QCoreApplication::sendEvent(_webSurface->getWindow(), &mouseEvent);
    }
#endif

    if (touchType == QEvent::TouchBegin) {
        _touchBeginAccepted = QCoreApplication::sendEvent(_webSurface->getWindow(), &touchEvent);
    } else if (_touchBeginAccepted) {
        QCoreApplication::sendEvent(_webSurface->getWindow(), &touchEvent);
    }

    // If this was a release event, remove the point from the active touch points
    if (state == Qt::TouchPointReleased) {
        _activeTouchPoints.erase(event.getID());
    }

#if QT_VERSION < QT_VERSION_CHECK(5, 9, 0)
    if (event.getType() == PointerEvent::Move) {
        QMouseEvent mouseEvent(QEvent::MouseMove, windowPoint, windowPoint, windowPoint, button, buttons, Qt::NoModifier);
        QCoreApplication::sendEvent(_webSurface->getWindow(), &mouseEvent);
    }
#endif
//.........这里部分代码省略.........

void RenderableWebEntityItem::handlePointerEvent(const PointerEvent& event) {

    // Ignore mouse interaction if we're locked
    if (getLocked() || !_webSurface) {
        return;
    }

    glm::vec2 windowPos = event.getPos2D() * (METERS_TO_INCHES * _dpi);
    QPointF windowPoint(windowPos.x, windowPos.y);

    if (event.getType() == PointerEvent::Move) {
        // Forward a mouse move event to webSurface
        QMouseEvent* mouseEvent = new QMouseEvent(QEvent::MouseMove, windowPoint, windowPoint, windowPoint, Qt::NoButton, Qt::NoButton, Qt::NoModifier);
        QCoreApplication::postEvent(_webSurface->getWindow(), mouseEvent);
    }

    {
        // Forward a touch update event to webSurface
        if (event.getType() == PointerEvent::Press) {
            this->_pressed = true;
        } else if (event.getType() == PointerEvent::Release) {
            this->_pressed = false;
        }

        QEvent::Type type;
        Qt::TouchPointState touchPointState;
        switch (event.getType()) {
        case PointerEvent::Press:
            type = QEvent::TouchBegin;
            touchPointState = Qt::TouchPointPressed;
            break;
        case PointerEvent::Release:
            type = QEvent::TouchEnd;
            touchPointState = Qt::TouchPointReleased;
            break;
        case PointerEvent::Move:
        default:
            type = QEvent::TouchUpdate;
            touchPointState = Qt::TouchPointMoved;
            break;
        }

        QTouchEvent::TouchPoint point;
        point.setId(event.getID());
        point.setState(touchPointState);
        point.setPos(windowPoint);
        point.setScreenPos(windowPoint);
        QList<QTouchEvent::TouchPoint> touchPoints;
        touchPoints.push_back(point);

        QTouchEvent* touchEvent = new QTouchEvent(type);
        touchEvent->setWindow(nullptr);
        touchEvent->setDevice(nullptr);
        touchEvent->setTarget(nullptr);
        touchEvent->setTouchPoints(touchPoints);
        touchEvent->setTouchPointStates(touchPointState);

        _lastTouchEvent = *touchEvent;

        QCoreApplication::postEvent(_webSurface->getWindow(), touchEvent);
    }
}