Emplementing QTouchEvent like to emùulate "native Windows Touch Events"

Sil20

Hello,
I would like to emit an QTouchevent like a windows Touch event The idea is to emulate touchpoints for a QML application. So I am not sure:

what type of event I shoud send (maybe is is not a QTouchEvent)
How I should send it
what is the target

So far I am building a QTouchEvent, I filled the touchpoint list with one point, and post it to the QApplication. But it crashes. In the debugger the callstack become unusable after being in "QtGui4.dll!QGestureEvent::isAccepted()"

I tried using "QApplication::sendEvent(QApplication::instance(), &event);", it does not crash but the event is not dispatched to the touchAreas.

I will appreciate some advices. Hereafter is the code I wrote to create and send the event.
Thancks a lot.

@ //Create Event structure
QTouchEvent event(eventType);
QListQTouchEvent::TouchPoint touchPoints = event.touchPoints();
QTouchEvent::TouchPoint p;

//Set Normalized globale position (0;1)
QPointF lp;
lp.setX(tcur->getPosition().getX());
lp.setY(tcur->getPosition().getY());

//Set Touch ID
int id = tcur->getCursorID();

//Set Values
p.setNormalizedPos(lp);
p.setId(id);

//p.setPressure(point->pressure);
//p.setRect(point->area);
//p.setScreenPos(point->area.center());

switch (eventType) {
    case QEvent::TouchBegin:
    {
        p.setState(Qt::TouchPointPressed );
        touchPoints.append(p);
        break;
    }
    case QEvent::TouchUpdate:
    {
        p.setState(Qt::TouchPointMoved);
        touchPoints.append(p);
        break;
    }
    case QEvent::TouchEnd:
    {
        p.setState(Qt::TouchPointReleased );
        touchPoints.append(p);
        //touchPoints. Update Existing
        break;
    }
    default:
    {
        break;
    }
}

//copy data into event structure
event.setTouchPoints(touchPoints);

//Send Event to main application    
QApplication::postEvent(QApplication::instance(), &event);

@

Sil20

Hi I FInally get somethingworking but there is still a BUG.
Here is what I do when I receive TUIO events, in my Application viewer (class ApplicationViewer
: public QDeclarativeView)

I build aQListQTouchEvent::TouchPoint
Ifill it with QTouchEvent::TouchPoint
I call diredtely:
@QApplicationPrivate *qAppPriv = QApplicationPrivate::instance();
qAppPriv->translateRawTouchEvent(this,QTouchEvent::TouchScreen,touchPointsList);@

on the test QML interface I made using touch areas it start working, but if I move "to much" a touch point (QEvent::TouchUpdate:) or if I touch 2 different touchareas simultaneously I have an

[Qt fatal] ASSERT: "cachedItemsUnderMouse.first() == origin" in file graphicsview\qgraphicsscene.cpp, line 5946*

Does someone has a advice?

Here is the code where the assertion: occured
@bool QGraphicsScenePrivate::sendTouchBeginEvent(QGraphicsItem *origin, QTouchEvent *touchEvent)
{
Q_Q(QGraphicsScene);

if (cachedItemsUnderMouse.isEmpty() || cachedItemsUnderMouse.first() != origin) {
    const QTouchEvent::TouchPoint &firstTouchPoint = touchEvent->touchPoints().first();
    cachedItemsUnderMouse = itemsAtPosition(firstTouchPoint.screenPos().toPoint(),
                                            firstTouchPoint.scenePos(),
                                            touchEvent->widget());
}
Q_ASSERT(cachedItemsUnderMouse.first() == origin);@

Sil20

I found it !

The problem was:

TUIO send SIngle Point Events
QT is considering multiple points list events
when I build my list I was not changing the point state from Pressed to Stationnary so there was "multiple Pressed event "