/*! \class QGraphicsSceneLinearIndex \brief The QGraphicsSceneLinearIndex class provides an implementation of a linear indexing algorithm for discovering items in QGraphicsScene. \since 4.6 \ingroup multimedia \ingroup graphicsview-api \mainclass \internal QGraphicsSceneLinearIndex index is default linear implementation to discover items. It basically store all items in a list and return them to the scene. \sa QGraphicsScene, QGraphicsView, QGraphicsSceneIndex, QGraphicsSceneBspTreeIndex */ #include /*! \fn QGraphicsSceneLinearIndex::QGraphicsSceneLinearIndex(QGraphicsScene *scene = 0): Construct a linear index for the given \a scene. */ /*! \fn QList QGraphicsSceneLinearIndex::items(Qt::SortOrder order = Qt::AscendingOrder) const; Return all items in the index and sort them using \a order. */ /*! \fn virtual QList QGraphicsSceneLinearIndex::estimateItems(const QRectF &rect, Qt::SortOrder order) const; Returns an estimation visible items that are either inside or intersect with the specified \a rect and return a list sorted using \a order. */ /*! \fn QRectF QGraphicsSceneLinearIndex::indexedRect() const; \reimp Return the rect indexed by the the index. */ /*! \fn void QGraphicsSceneLinearIndex::clear(); \reimp Clear the all the BSP index. */ /*! \fn virtual void QGraphicsSceneLinearIndex::addItem(QGraphicsItem *item); Add the \a item into the index. */ /*! \fn virtual void QGraphicsSceneLinearIndex::removeItem(QGraphicsItem *item); Add the \a item from the index. */