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Model
QAbstractItemModel
Data
simpletreeexample
GraphicsView : AbstractView
QPersistentModelIndex()
ItemView : QAbstractItemView
dataChanged( const QModelIndex & topLeft, const QModelIndex & bottomRight )
rowsInserted( const QModelIndex & parent, int start, int end )
rowsAboutToBeRemoved( const QModelIndex & parent, int start, int end ) {
Delegates actions as adding/removing/changing
items to the scene
This widget is .hide() since
We don't use it directly!
QGraphicsItem* modelToSceenIndex( QPersistentModelIndex index )
Mapping QgraphicsItems to QPersistentModelIndexes
GraphicsScene : QgraphicsScene
QGraphicsItems
Wrap data() and setData() for all QGraphicsItems
QGraphicsitem()
QModelIndex()
Node*, node_connection*,
Qobject::properties