void QQuickWheelArea::setVerticalValue(qreal value)
{
value = qBound<qreal>(m_verticalMinimumValue, value, m_verticalMaximumValue);
if (value != m_verticalValue) {
m_verticalValue = value;
emit verticalValueChanged();
}
}
void GLControlFrame::newVValue(double newValue) {
m_vWheel->setRange(newValue - 10, newValue + 10, 1);
emit verticalValueChanged(newValue);
}