PySide.QtGui.QAbstractProxyModel class provides a base class for proxy item models that can do sorting, filtering or other data processing tasks.
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 PySide.QtGui.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 PySide.QtGui.QSortFilterProxyModel .
To subclass PySide.QtGui.QAbstractProxyModel , you need to implement PySide.QtGui.QAbstractProxyModel.mapFromSource() and PySide.QtGui.QAbstractProxyModel.mapToSource() 。 PySide.QtGui.QAbstractProxyModel.mapSelectionFromSource() and PySide.QtGui.QAbstractProxyModel.mapSelectionToSource() functions only need to be reimplemented if you need a behavior different from the default behavior.
注意
If the source model is deleted or no source model is specified, the proxy model operates on a empty placeholder model.
| 参数： | parent – PySide.QtCore.QObject |
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Constructs a proxy model with the given parent .
| 参数： | sourceIndex – PySide.QtCore.QModelIndex |
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| 返回类型： | PySide.QtCore.QModelIndex |
Reimplement this function to return the model index in the proxy model that corresponds to the sourceIndex from the source model.
| 参数： | selection – PySide.QtGui.QItemSelection |
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| 返回类型： | PySide.QtGui.QItemSelection |
Returns a proxy selection mapped from the specified sourceSelection .
Reimplement this method to map source selections to proxy selections.
| 参数： | selection – PySide.QtGui.QItemSelection |
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| 返回类型： | PySide.QtGui.QItemSelection |
Returns a source selection mapped from the specified proxySelection .
Reimplement this method to map proxy selections to source selections.
| 参数： | proxyIndex – PySide.QtCore.QModelIndex |
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| 返回类型： | PySide.QtCore.QModelIndex |
Reimplement this function to return the model index in the source model that corresponds to the proxyIndex in the proxy model.
| 参数： | sourceModel – PySide.QtCore.QAbstractItemModel |
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设置给定 sourceModel to be processed by the proxy model.
| 返回类型： | PySide.QtCore.QAbstractItemModel |
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Returns the model that contains the data that is available through the proxy model.
