/*!
    \class QskControl QskControl.h

    \brief Base class of all Qsk controls

    QskControl is the base class for most visible Qsk controls.

    It re-establishes several concepts known from QWidget, that got lost
    with QQuickItem:

    - contentsRect()
    - autoFillBackground()
    - support of layout rules: sizeHint(), sizePolicy()
    - locale and its propagation on the item tree

    Even if QQuickItem is part of the public C++ API it has obviously been
    designed for implementing custom items, but not for using them in C++
    code. To support this use case a lot of trivial methods have been added.

    For some reason the QQuick classes introduced proprietory notfier hooks
    instead of using the well established and powerful concept of events.
    QskControl tries to revert this decision by mapping notifications
    to events, when possible.

    The following events are currently implemented:

    - QEvent::FontChange
    - QEvent::PaletteChange
    - QEvent::LocaleChange
    - QEvent::LayoutDirectionChange
    - QEvent::ContentsRectChange
    - QEvent::LayoutRequest
*/