[Qt-interest] Do gestures work on symbian platform?

[Dmitry Teslenko]

Hello!

What's state of gestures on symbian paltform in Qt 4.7.3?
Either they are not working either there's something missing in docs
here:
http://doc.qt.nokia.com/latest/gestures-overview.html

Documents states that gesture recogintion can be made with QWidget or
QGraphicsObject. Down there's compileable example of a second approach.
Please point out that's missing. Because this app doesn't recognize
swype and pan. It recognizes pinch from time to time.

#include <QtGui>

class GestureObject : public QGraphicsObject {
public:
        GestureObject();
        virtual QRectF boundingRect() const;
    virtual void paint(QPainter *painter, const
QStyleOptionGraphicsItem *option, QWidget *widget);
    virtual QPainterPath shape() const;

        virtual bool sceneEvent(QEvent *);
        bool gestureEvent(QGestureEvent *);
protected:

private:
        QColor m_color;
};

bool GestureObject::gestureEvent(QGestureEvent *event) {
        QGesture *gesture = event->gesture(Qt::SwipeGesture);
        if(gesture) {
                QSwipeGesture *swipeGesture =
static_cast<QSwipeGesture *>(gesture);
                if(swipeGesture && swipeGesture->state() ==
Qt::GestureFinished) {
                        switch(swipeGesture->horizontalDirection()) {
                                case QSwipeGesture::Left:
                                        m_color = QColor("green");
                                        update();
                                        break;
                                case QSwipeGesture::Right:
                                        m_color = QColor("blue");
                                        update();
                                        break;
                                default :
                                        break;
                        }

                }
        }
        gesture = event->gesture(Qt::PanGesture);
        if(gesture) {
            QPanGesture *panGesture = static_cast<QPanGesture *>(gesture);
            m_color = QColor("yellow");
            update();
        }

        gesture = event->gesture(Qt::PinchGesture);
        if(gesture) {
            QPinchGesture *pinchGesture = static_cast<QPinchGesture *>(gesture);
            m_color = QColor("grey");
            update();
        }
        return true;
}

bool GestureObject::sceneEvent(QEvent *event) {
        if (event->type() == QEvent::Gesture) {
                return gestureEvent(static_cast<QGestureEvent*>(event));
        }
        return QGraphicsObject::sceneEvent(event);
}

GestureObject::GestureObject() : m_color(QColor("red")) {
    setAcceptTouchEvents(true);
        grabGesture(Qt::PanGesture);
        grabGesture(Qt::PinchGesture);
        grabGesture(Qt::SwipeGesture);
}

QRectF GestureObject::boundingRect() const {
        return QRectF(QPointF(-150, -150), QPointF(150, 150));
}

void GestureObject::paint(QPainter *painter, const
QStyleOptionGraphicsItem *option, QWidget *widget) {
        painter->setBrush(m_color);
        painter->drawRect(boundingRect());
}

QPainterPath GestureObject::shape() const {
        QPainterPath path;
        path.addRect(boundingRect());
        return path;
}

int main(int argc, char *argv[]) {
        QApplication app(argc, argv);

        QGraphicsScene scene;

        GestureObject *object = new GestureObject;
        scene.addItem(object);

        QGraphicsView view(&scene);
        view.showFullScreen();
        return app.exec();
}

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