void UIGraphicsScrollArea::makeSureRectIsVisible(const QRectF &rect)
{
/* Make sure rect size is bound by the scroll-area size: */
QRectF actualRect = rect;
QSizeF actualRectSize = actualRect.size();
actualRectSize = actualRectSize.boundedTo(size());
actualRect.setSize(actualRectSize);
/* Acquire scroll-area scene position: */
const QPointF saPos = mapToScene(QPointF(0, 0));
switch (m_enmOrientation)
{
/* Scroll viewport horizontally: */
case Qt::Horizontal:
{
/* If rectangle is at least partially right of visible area: */
if (actualRect.x() + actualRect.width() - saPos.x() > size().width())
m_pScrollBar->setValue(m_pScrollBar->value() + actualRect.x() + actualRect.width() - saPos.x() - size().width());
/* If rectangle is at least partially left of visible area: */
else if (actualRect.x() - saPos.x() < 0)
m_pScrollBar->setValue(m_pScrollBar->value() + actualRect.x() - saPos.x());
break;
}
/* Scroll viewport vertically: */
case Qt::Vertical:
{
/* If rectangle is at least partially under visible area: */
if (actualRect.y() + actualRect.height() - saPos.y() > size().height())
m_pScrollBar->setValue(m_pScrollBar->value() + actualRect.y() + actualRect.height() - saPos.y() - size().height());
/* If rectangle is at least partially above visible area: */
else if (actualRect.y() - saPos.y() < 0)
m_pScrollBar->setValue(m_pScrollBar->value() + actualRect.y() - saPos.y());
break;
}
}
}
