diff options
Diffstat (limited to 'src/widgets/widgets/qabstractscrollarea.cpp')
| -rw-r--r-- | src/widgets/widgets/qabstractscrollarea.cpp | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/src/widgets/widgets/qabstractscrollarea.cpp b/src/widgets/widgets/qabstractscrollarea.cpp index 249ebd35d3..c6d66bafd4 100644 --- a/src/widgets/widgets/qabstractscrollarea.cpp +++ b/src/widgets/widgets/qabstractscrollarea.cpp @@ -334,16 +334,27 @@ void QAbstractScrollAreaPrivate::setSingleFingerPanEnabled(bool on) void QAbstractScrollAreaPrivate::layoutChildren() { + bool needH = false; + bool needV = false; + layoutChildren_helper(&needH, &needV); + // Call a second time if one scrollbar was needed and not the other to + // check if it needs to readjust accordingly + if (needH != needV) + layoutChildren_helper(&needH, &needV); +} + +void QAbstractScrollAreaPrivate::layoutChildren_helper(bool *needHorizontalScrollbar, bool *needVerticalScrollbar) +{ Q_Q(QAbstractScrollArea); bool htransient = hbar->style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, hbar); - bool needh = (hbarpolicy != Qt::ScrollBarAlwaysOff) && ((hbarpolicy == Qt::ScrollBarAlwaysOn && !htransient) - || ((hbarpolicy == Qt::ScrollBarAsNeeded || htransient) - && hbar->minimum() < hbar->maximum() && !hbar->sizeHint().isEmpty())); + bool needh = *needHorizontalScrollbar || ((hbarpolicy != Qt::ScrollBarAlwaysOff) && ((hbarpolicy == Qt::ScrollBarAlwaysOn && !htransient) + || ((hbarpolicy == Qt::ScrollBarAsNeeded || htransient) + && hbar->minimum() < hbar->maximum() && !hbar->sizeHint().isEmpty()))); bool vtransient = vbar->style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, vbar); - bool needv = (vbarpolicy != Qt::ScrollBarAlwaysOff) && ((vbarpolicy == Qt::ScrollBarAlwaysOn && !vtransient) - || ((vbarpolicy == Qt::ScrollBarAsNeeded || vtransient) - && vbar->minimum() < vbar->maximum() && !vbar->sizeHint().isEmpty())); + bool needv = *needVerticalScrollbar || ((vbarpolicy != Qt::ScrollBarAlwaysOff) && ((vbarpolicy == Qt::ScrollBarAlwaysOn && !vtransient) + || ((vbarpolicy == Qt::ScrollBarAsNeeded || vtransient) + && vbar->minimum() < vbar->maximum() && !vbar->sizeHint().isEmpty()))); QStyleOption opt(0); opt.init(q); @@ -522,6 +533,8 @@ void QAbstractScrollAreaPrivate::layoutChildren() viewportRect.adjust(left, top, -right, -bottom); viewport->setGeometry(QStyle::visualRect(opt.direction, opt.rect, viewportRect)); // resize the viewport last + *needHorizontalScrollbar = needh; + *needVerticalScrollbar = needv; } /*! |