void QTapGestureRecognizer::reset(QGesture *state)
{
QTapGesture *q = static_cast<QTapGesture *>(state);
QTapGesturePrivate *d = q->d_func();
d->position = QPointF();
QGestureRecognizer::reset(state);
}
QGestureRecognizer::Result QTapGestureRecognizer::recognize(QGesture *state,
QObject *,
QEvent *event)
{
QTapGesture *q = static_cast<QTapGesture *>(state);
QTapGesturePrivate *d = q->d_func();
const QTouchEvent *ev = static_cast<const QTouchEvent *>(event);
QGestureRecognizer::Result result = QGestureRecognizer::CancelGesture;
switch (event->type()) {
case QEvent::TouchBegin: {
d->position = ev->touchPoints().at(0).pos();
q->setHotSpot(ev->touchPoints().at(0).screenPos());
result = QGestureRecognizer::TriggerGesture;
break;
}
case QEvent::TouchUpdate:
case QEvent::TouchEnd: {
if (q->state() != Qt::NoGesture && ev->touchPoints().size() == 1) {
QTouchEvent::TouchPoint p = ev->touchPoints().at(0);
QPoint delta = p.pos().toPoint() - p.startPos().toPoint();
enum { TapRadius = 40 };
if (delta.manhattanLength() <= TapRadius) {
if (event->type() == QEvent::TouchEnd)
result = QGestureRecognizer::FinishGesture;
else
result = QGestureRecognizer::TriggerGesture;
}
}
break;
}
case QEvent::MouseButtonPress:
case QEvent::MouseMove:
case QEvent::MouseButtonRelease:
result = QGestureRecognizer::Ignore;
break;
default:
result = QGestureRecognizer::Ignore;
break;
}
return result;
}
QGestureRecognizer::Result QTapGestureRecognizer::recognize(QGesture *state,
QObject *,
QEvent *event)
{
QTapGesture *q = static_cast<QTapGesture *>(state);
QTapGesturePrivate *d = q->d_func();
const QTouchEvent *ev = static_cast<const QTouchEvent *>(event);
QGestureRecognizer::Result result = QGestureRecognizer::CancelGesture;
switch (event->type()) {
case QEvent::TouchBegin: {
#ifndef QT_WEBOS // REBASE_CHECK_REQUIRED necessary?
d->position = ev->touchPoints().at(0).pos();
q->setHotSpot(ev->touchPoints().at(0).screenPos());
#else // QT_WEBOS
QTouchEvent::TouchPoint p = ev->touchPoints().at(0);
d->position = p.pos();
d->hotSpot = p.screenPos();
d->isHotSpotSet = true;
#endif // QT_WEBOS
result = QGestureRecognizer::TriggerGesture;
break;
}
case QEvent::TouchUpdate:
case QEvent::TouchEnd: {
if (q->state() != Qt::NoGesture && ev->touchPoints().size() == 1) {
QTouchEvent::TouchPoint p = ev->touchPoints().at(0);
#ifdef QT_WEBOS // REBASE_CHECK_REQUIRED use setHotSpot?
d->hotSpot = p.screenPos();
d->isHotSpotSet = true;
#endif // QT_WEBOS
QPoint delta = p.pos().toPoint() - p.startPos().toPoint();
enum { TapRadius = 40 };
if (delta.manhattanLength() <= TapRadius) {
if (event->type() == QEvent::TouchEnd)
result = QGestureRecognizer::FinishGesture;
else
result = QGestureRecognizer::TriggerGesture;
}
}
break;
}
case QEvent::MouseButtonPress:
case QEvent::MouseMove:
case QEvent::MouseButtonRelease:
result = QGestureRecognizer::Ignore;
break;
#ifdef QT_WEBOS
case QEvent::Gesture:
{
QGesture* g = static_cast<QGestureEvent*>(event)->gesture(Qt::SysMgrGestureFlick);
if (g && g->state() == Qt::GestureFinished && q->state() != Qt::NoGesture ) {
result = QGestureRecognizer::CancelGesture;
break;
}
g = static_cast<QGestureEvent*>(event)->gesture(Qt::SysMgrGestureScreenEdgeFlick);
if (g && g->state() == Qt::GestureFinished && q->state() != Qt::NoGesture ) {
result = QGestureRecognizer::CancelGesture;
break;
}
}
// fall through
#endif // QT_WEBOS
default:
result = QGestureRecognizer::Ignore;
break;
}
return result;
}
