How can I always keep the scroll bar at the bottom of a QScrollArea?

[Plixil]

I was blown away by the amount of help I got here. Thanks guys For future Googlers, here's there code I ended up using.

QScrollBar* scrollbar = scrollArea->verticalScrollBar();
QObject::connect(scrollbar, SIGNAL(rangeChanged(int,int)), this, SLOT(moveScrollBarToBottom(int, int)));

QScrollBar* scrollbar = scrollArea->verticalScrollBar();
QObject::connect(scrollbar, SIGNAL(rangeChanged(int,int)), this, SLOT(moveScrollBarToBottom(int, int)));

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void moveScrollBarToBottom(int min, int max)
{
    Q_UNUSED(min);
    scrollArea->verticalScrollBar()->setValue(max);
}

void moveScrollBarToBottom(int min, int max)
{
    Q_UNUSED(min);
    scrollArea->verticalScrollBar()->setValue(max);
}

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Though I used Chris's method, norobro's was equally valid.

Thanks again guys

[norobro]

I encountered this problem several months ago. I tried several different solutions before arriving at "maximum()+1" which IMO is a kludge. I even tried calling update() on my view to insure that scroll bar value was current. Somehow I overlooked the rangeChanged(int,int) signal.

I think that your solution is the correct one.

[youssef attai]

I was blown away by the amount of help I got here. Thanks guys For future Googlers, here's there code I ended up using.

QScrollBar* scrollbar = scrollArea->verticalScrollBar();
QObject::connect(scrollbar, SIGNAL(rangeChanged(int,int)), this, SLOT(moveScrollBarToBottom(int, int)));

QScrollBar* scrollbar = scrollArea->verticalScrollBar();
QObject::connect(scrollbar, SIGNAL(rangeChanged(int,int)), this, SLOT(moveScrollBarToBottom(int, int)));

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void moveScrollBarToBottom(int min, int max)
{
    Q_UNUSED(min);
    scrollArea->verticalScrollBar()->setValue(max);
}

void moveScrollBarToBottom(int min, int max)
{
    Q_UNUSED(min);
    scrollArea->verticalScrollBar()->setValue(max);
}

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Though I used Chris's method, norobro's was equally valid.

Thanks again guys

Thank you so much it finally worked for me

[jhosek]

From QT source for QAbstractItemView:

void QAbstractItemView::scrollToBottom()
{
    Q_D(QAbstractItemView);
    if (d->delayedPendingLayout) {
        d->executePostedLayout();
        updateGeometries();
    }
    verticalScrollBar()->setValue(verticalScrollBar()->maximum());
}

void QAbstractItemView::scrollToBottom()
{
    Q_D(QAbstractItemView);
    if (d->delayedPendingLayout) {
        d->executePostedLayout();
        updateGeometries();
    }
    verticalScrollBar()->setValue(verticalScrollBar()->maximum());
}

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