This class defines the standard interface that proxy models must use to be able to interoperate correctly with other model/view components. It is not supposed to be instantiated directly.
All standard proxy models are derived from the
QAbstractProxyModel class. If you need to create a new proxy model class, it is usually better to subclass an existing class that provides the closest behavior to the one you want to provide.
Proxy models that filter or sort items of data from a source model should be created by using or subclassing
QAbstractProxyModel , you need to implement
mapToSource() . The
mapSelectionToSource() functions only need to be reimplemented if you need a behavior different from the default behavior.
If the source model is deleted or no source model is specified, the proxy model operates on a empty placeholder model.
Constructs a proxy model with the given
Reimplement this function to return the model index in the proxy model that corresponds to the
sourceIndex from the source model.
Returns a proxy selection mapped from the specified
Reimplement this method to map source selections to proxy selections.
Returns a source selection mapped from the specified
Reimplement this method to map proxy selections to source selections.
Reimplement this function to return the model index in the source model that corresponds to the
proxyIndex in the proxy model.
Sets the given
sourceModel to be processed by the proxy model.
Returns the model that contains the data that is available through the proxy model.
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