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authorOlivier Goffart <ogoffart@trolltech.com>2009-11-11 15:28:24 (GMT)
committerOlivier Goffart <ogoffart@trolltech.com>2009-11-11 15:35:59 (GMT)
commit46a3e518b3070cf7cb4cbbb2cb58254454cf169d (patch)
tree5f3713cc524d59f09db230b4bcacb26008980070 /src/gui/widgets/qabstractscrollarea.cpp
parent2b6fd0a7bdac686a41d7fbbe47ad3ded9e1d77b5 (diff)
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QAbstractScrollArea: Wheel over a scrollarea that has only one horizontal scrollbar
If the vertical scrollbar is hidden, scroll using the other scrollbar. Reviewed-by: Thierry Task-number: QTBUG-1760
Diffstat (limited to 'src/gui/widgets/qabstractscrollarea.cpp')
-rw-r--r--src/gui/widgets/qabstractscrollarea.cpp11
1 files changed, 7 insertions, 4 deletions
diff --git a/src/gui/widgets/qabstractscrollarea.cpp b/src/gui/widgets/qabstractscrollarea.cpp
index 48099ef..c186645 100644
--- a/src/gui/widgets/qabstractscrollarea.cpp
+++ b/src/gui/widgets/qabstractscrollarea.cpp
@@ -1130,10 +1130,13 @@ void QAbstractScrollArea::mouseMoveEvent(QMouseEvent *e)
void QAbstractScrollArea::wheelEvent(QWheelEvent *e)
{
Q_D(QAbstractScrollArea);
- if (static_cast<QWheelEvent*>(e)->orientation() == Qt::Horizontal)
- QApplication::sendEvent(d->hbar, e);
- else
- QApplication::sendEvent(d->vbar, e);
+ QScrollBar *const bars[2] = { d->hbar, d->vbar };
+ int idx = (e->orientation() == Qt::Vertical) ? 1 : 0;
+ int other = (idx + 1) % 2;
+ if (!bars[idx]->isVisible() && bars[other]->isVisible())
+ idx = other; // If the scrollbar of the event orientation is hidden, fallback to the other.
+
+ QApplication::sendEvent(bars[idx], e);
}
#endif