/*! \class QskQuickItem QskQuickItem.h \ingroup framework QskQuickItem completes the C++ API of QQuickItem and implements some flags to offer better control over the operations happening in the update cycle. */ /*! \enum QskQuickItem::Flag Qt/Quick classes have a tendency to update items too early and too often. To avoid processing of unwanted operations QskQuickItem implements a couple of modifications, that can be en/disabled individually. \var QskQuickItem::Flag QskQuickItem::DeferredUpdate Creating of sceme graph nodes is blocked when being invisible. ( QQuickItem::isVisible() ). \note Some more advanced algorithms have not yet been implemented, such as viewport frustrum culling (i.e. hiding items outside of the window geometry). \var QskQuickItem::Flag QskQuickItem::DeferredPolish Polishing an item ( QQuickItem::polish() ) is blocked when being invisible. F.e for all items being derived from QskControl the layout calculations happen during polishing. \var QskQuickItem::Flag QskQuickItem::DeferredLayout Recalculations of the implicitSize are blocked until being explicitely requested by QQuickItem::implicitSize(). When being enabled the item indicates layout relevant changes by sending a QEvent::LayoutRequest ( similar to QWidget ) to its parent item without recalculating the actual size hints ( f.e the implicitSize ). When having layout code that relies on binding the implicit width/height the QskQuickItem::DeferredLayout flag needs to be disabled. \note All layout classes offered by the Qt/Quick modules of the Qt Company ( f.e anchors ) do require immediate updates of the implicit size. \sa QskQuickItem::resetImplicitSize() \var QskQuickItem::Flag QskQuickItem::CleanupOnVisibility Delete scene graph nodes, when the item becomes hidden ( QQuickItem::isVisible() ). Enabling this mode will reduce the memory footprint, but comes at the cost of having to recreate nodes later. \var QskQuickItem::Flag QskQuickItem::PreferRasterForTextures When creating textures from QskGraphic, prefer the raster paint engine over the OpenGL paint engine. \var DebugForceBackground Always fill the background of the item with a random color. \note This flag is useful when analyzing layouts. \sa controlFlags(), setControlFlags(), resetControlFlags() testControlFlag(), setControlFlag(), resetControlFlag() */ /*! \fn QskQuickItem::QskQuickItem bla */ *! \fn QskQuickItem::~QskQuickItem \bla */ /*! \fn QskQuickItem::className bla */ /*! \fn QskQuickItem::isVisibleTo bla */ /*! \fn QskQuickItem::isVisibleToParent bla */ /*! \fn QskQuickItem::hasChildItems bla */ /*! \fn QskQuickItem::setGeometry( qreal, qreal, qreal, qreal ) bla */ /*! \fn QskQuickItem::setGeometry( const QRectF& ) bla */ /*! \fn QskQuickItem::geometry() const bla */ /*! \fn QskQuickItem::geometryChange bla */ /*! \fn QskQuickItem::rect bla */ /*! \fn QskQuickItem::implicitSize bla */ /*! \fn QskQuickItem::setPolishOnResize bla */ /*! \fn QskQuickItem::polishOnResize() const bla */ /*! \fn QskQuickItem::setTransparentForPositioner bla */ /*! \fn QskQuickItem::isTransparentForPositioner bla */ /*! \fn QskQuickItem::setTabFence bla */ /*! \fn QskQuickItem::isTabFence bla */ /*! \fn QskQuickItem::setLayoutMirroring bla */ /*! \fn QskQuickItem::resetLayoutMirroring bla */ /*! \fn QskQuickItem::layoutMirroring bla */ /*! \fn QskQuickItem::setControlFlags bla */ /*! \fn QskQuickItem::resetControlFlags bla */ /*! \fn QskQuickItem::controlFlags bla */ /*! \fn QskQuickItem::setControlFlag bla */ /*! \fn QskQuickItem::resetControlFlag bla */ /*! \fn QskQuickItem::testControlFlag bla */ /*! \fn QskQuickItem::controlFlagsChanged bla */ /*! \fn QskQuickItem::classBegin bla */ /*! \fn QskQuickItem::componentComplete bla */ /*! \fn QskQuickItem::releaseResources bla */ /*! \fn QskQuickItem::isPolishScheduled bla */ /*! \fn QskQuickItem::isUpdateNodeScheduled bla */ /*! \fn QskQuickItem::isInitiallyPainted bla */ /*! \fn QskQuickItem::maybeUnresized bla */ /*! \fn QskQuickItem::itemFlagsChanged bla */ /*! \fn QskQuickItem::setGeometry bla */ /*! \fn QskQuickItem::show bla */ /*! \fn QskQuickItem::hide bla */ /*! \fn QskQuickItem::setVisible bla */ /*! \fn QskQuickItem::resetImplicitSize bla */ /*! \fn QskQuickItem::event bla */ /*! \fn QskQuickItem::changeEvent bla */ /*! \fn QskQuickItem::geometryChangeEvent bla */ /*! \fn QskQuickItem::windowChangeEvent bla */ /*! \fn QskQuickItem::itemChange bla */ /*! void \fn QskQuickItem::aboutToShow bla */