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-rw-r--r--src/gui/widgets/qabstractscrollarea.cpp55
1 files changed, 32 insertions, 23 deletions
diff --git a/src/gui/widgets/qabstractscrollarea.cpp b/src/gui/widgets/qabstractscrollarea.cpp
index 0896256..7d81d5a 100644
--- a/src/gui/widgets/qabstractscrollarea.cpp
+++ b/src/gui/widgets/qabstractscrollarea.cpp
@@ -293,13 +293,16 @@ void QAbstractScrollAreaPrivate::init()
q->setFrameStyle(QFrame::StyledPanel | QFrame::Sunken);
q->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
layoutChildren();
+ viewport->grabGesture(Qt::PanGesture);
}
#ifdef Q_WS_WIN
void QAbstractScrollAreaPrivate::setSingleFingerPanEnabled(bool on)
{
singleFingerPanEnabled = on;
- winSetupGestures();
+ QWidgetPrivate *dd = static_cast<QWidgetPrivate *>(QObjectPrivate::get(viewport));
+ if (dd)
+ dd->winSetupGestures();
}
#endif // Q_WS_WIN
@@ -539,6 +542,7 @@ void QAbstractScrollArea::setViewport(QWidget *widget)
d->viewport->setParent(this);
d->viewport->setFocusProxy(this);
d->viewport->installEventFilter(d->viewportFilter.data());
+ d->viewport->grabGesture(Qt::PanGesture);
d->layoutChildren();
if (isVisible())
d->viewport->show();
@@ -935,6 +939,26 @@ bool QAbstractScrollArea::event(QEvent *e)
case QEvent::TouchUpdate:
case QEvent::TouchEnd:
return false;
+ case QEvent::Gesture:
+ {
+ QGestureEvent *ge = static_cast<QGestureEvent *>(e);
+ QPanGesture *g = static_cast<QPanGesture *>(ge->gesture(Qt::PanGesture));
+ if (g) {
+ QScrollBar *hBar = horizontalScrollBar();
+ QScrollBar *vBar = verticalScrollBar();
+ QPointF delta = g->lastOffset();
+ if (!delta.isNull()) {
+ if (QApplication::isRightToLeft())
+ delta.rx() *= -1;
+ int newX = hBar->value() - delta.x();
+ int newY = vBar->value() - delta.y();
+ hBar->setValue(newX);
+ vBar->setValue(newY);
+ }
+ return true;
+ }
+ return false;
+ }
case QEvent::StyleChange:
case QEvent::LayoutDirectionChange:
case QEvent::ApplicationLayoutDirectionChange:
@@ -990,6 +1014,8 @@ bool QAbstractScrollArea::viewportEvent(QEvent *e)
#endif
return QFrame::event(e);
case QEvent::LayoutRequest:
+ case QEvent::Gesture:
+ case QEvent::GestureOverride:
return event(e);
default:
break;
@@ -1266,11 +1292,13 @@ void QAbstractScrollAreaPrivate::_q_vslide(int y)
void QAbstractScrollAreaPrivate::_q_showOrHideScrollBars()
{
layoutChildren();
-#ifdef Q_OS_WIN
+#ifdef Q_WS_WIN
// Need to re-subscribe to gestures as the content changes to make sure we
// enable/disable panning when needed.
- winSetupGestures();
-#endif // Q_OS_WIN
+ QWidgetPrivate *dd = static_cast<QWidgetPrivate *>(QObjectPrivate::get(viewport));
+ if (dd)
+ dd->winSetupGestures();
+#endif // Q_WS_WIN
}
QPoint QAbstractScrollAreaPrivate::contentsOffset() const
@@ -1335,25 +1363,6 @@ void QAbstractScrollArea::setupViewport(QWidget *viewport)
Q_UNUSED(viewport);
}
-//void QAbstractScrollAreaPrivate::_q_gestureTriggered()
-//{
-// Q_Q(QAbstractScrollArea);
-// QPanGesture *g = qobject_cast<QPanGesture*>(q->sender());
-// if (!g)
-// return;
-// QScrollBar *hBar = q->horizontalScrollBar();
-// QScrollBar *vBar = q->verticalScrollBar();
-// QSizeF delta = g->lastOffset();
-// if (!delta.isNull()) {
-// if (QApplication::isRightToLeft())
-// delta.rwidth() *= -1;
-// int newX = hBar->value() - delta.width();
-// int newY = vBar->value() - delta.height();
-// hbar->setValue(newX);
-// vbar->setValue(newY);
-// }
-//}
-
QT_END_NAMESPACE
#include "moc_qabstractscrollarea.cpp"