Method isEmpty

3rdparty/qcustomplot/qcustomplot.cpp:3060–3070

! Returns whether this margin group is empty. If this function returns true, no layout elements use this margin group to synchronize margin sides. */

  this margin group to synchronize margin sides.
*/
bool QCPMarginGroup::isEmpty() const
{
  QHashIterator<QCP::MarginSide, QList<QCPLayoutElement*> > it(mChildren);
  while (it.hasNext())
  {
    it.next();
    if (!it.value().isEmpty())
      return false;
  }
  return true;
}

/*!
  Clears this margin group. The synchronization of the margin sides that use this margin group is