视频教程     下载中心     Wiki     联络 登录   注册
  1. 首页
  2. PyQt 4.11.4
  3. 所有类
  4. 模块

QAbstractProxyModel Class Reference

[ QtGui module]

The QAbstractProxyModel class provides a base class for proxy item models that can do sorting, filtering or other data processing tasks. 更多...

继承 QAbstractItemModel .

Inherited by QIdentityProxyModel and QSortFilterProxyModel .

方法

详细描述

The 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 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 QSortFilterProxyModel .

To subclass QAbstractProxyModel, you need to implement mapFromSource () 和 mapToSource (). mapSelectionFromSource () and 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.

方法文档编制

QAbstractProxyModel.__init__ ( self , QObject   parent  = None)

parent argument, if not None, causes self to be owned by Qt instead of PyQt.

Constructs a proxy model with the given parent .

QModelIndex QAbstractProxyModel.buddy ( self , QModelIndex   index )

重实现自 QAbstractItemModel.buddy ().

该函数在 Qt 4.8 引入。

bool QAbstractProxyModel.canFetchMore ( self , QModelIndex   parent )

重实现自 QAbstractItemModel.canFetchMore ().

该函数在 Qt 4.8 引入。

QVariant QAbstractProxyModel.data ( self , QModelIndex   proxyIndex , int  role  = Qt.DisplayRole)

重实现自 QAbstractItemModel.data ().

另请参阅 setData ().

QAbstractProxyModel.fetchMore ( self , QModelIndex   parent )

重实现自 QAbstractItemModel.fetchMore ().

该函数在 Qt 4.8 引入。

Qt.ItemFlags QAbstractProxyModel.flags ( self , QModelIndex   index )

重实现自 QAbstractItemModel.flags ().

bool QAbstractProxyModel.hasChildren ( self , QModelIndex   parent  = QModelIndex())

重实现自 QAbstractItemModel.hasChildren ().

该函数在 Qt 4.8 引入。

QVariant QAbstractProxyModel.headerData ( self , int  section , Qt.Orientation   orientation , int  role )

重实现自 QAbstractItemModel.headerData ().

另请参阅 setHeaderData ().

dict-of-int-QVariant QAbstractProxyModel.itemData ( self , QModelIndex   index )

重实现自 QAbstractItemModel.itemData ().

另请参阅 setItemData ().

QModelIndex QAbstractProxyModel.mapFromSource ( self , QModelIndex   sourceIndex )

This method is abstract and should be reimplemented in any sub-class.

Reimplement this function to return the model index in the proxy model that corresponds to the sourceIndex from the source model.

另请参阅 mapToSource ().

QItemSelection QAbstractProxyModel.mapSelectionFromSource ( self , QItemSelection   selection )

Returns a proxy selection mapped from the specified sourceSelection .

Reimplement this method to map source selections to proxy selections.

QItemSelection QAbstractProxyModel.mapSelectionToSource ( self , QItemSelection   selection )

Returns a source selection mapped from the specified proxySelection .

Reimplement this method to map proxy selections to source selections.

QModelIndex QAbstractProxyModel.mapToSource ( self , QModelIndex   proxyIndex )

This method is abstract and should be reimplemented in any sub-class.

Reimplement this function to return the model index in the source model that corresponds to the proxyIndex in the proxy model.

另请参阅 mapFromSource ().

QMimeData QAbstractProxyModel.mimeData ( self , list-of-QModelIndex  indexes )

QMimeData result

重实现自 QAbstractItemModel.mimeData ().

该函数在 Qt 4.8 引入。

QStringList QAbstractProxyModel.mimeTypes ( self )

重实现自 QAbstractItemModel.mimeTypes ().

该函数在 Qt 4.8 引入。

QAbstractProxyModel.revert ( self )

重实现自 QAbstractItemModel.revert ().

bool QAbstractProxyModel.setData ( self , QModelIndex   index , QVariant  value , int  role  = Qt.EditRole)

重实现自 QAbstractItemModel.setData ().

另请参阅 data ().

bool QAbstractProxyModel.setHeaderData ( self , int  section , Qt.Orientation   orientation , QVariant  value , int  role  = Qt.EditRole)

重实现自 QAbstractItemModel.setHeaderData ().

另请参阅 headerData ().

bool QAbstractProxyModel.setItemData ( self , QModelIndex   index , dict-of-int-QVariant  roles )

重实现自 QAbstractItemModel.setItemData ().

另请参阅 itemData ().

QAbstractProxyModel.setSourceModel ( self , QAbstractItemModel   sourceModel )

设置给定 sourceModel to be processed by the proxy model.

另请参阅 sourceModel ().

QAbstractProxyModel.sort ( self , int  column , Qt.SortOrder   order  = Qt.AscendingOrder)

重实现自 QAbstractItemModel.sort ().

该函数在 Qt 4.8 引入。

QAbstractItemModel QAbstractProxyModel.sourceModel ( self )

Returns the model that contains the data that is available through the proxy model.

另请参阅 setSourceModel ().

QSize QAbstractProxyModel.span ( self , QModelIndex   index )

重实现自 QAbstractItemModel.span ().

该函数在 Qt 4.8 引入。

bool QAbstractProxyModel.submit ( self )

重实现自 QAbstractItemModel.submit ().

Qt.DropActions QAbstractProxyModel.supportedDropActions ( self )

重实现自 QAbstractItemModel.supportedDropActions ().

该函数在 Qt 4.8 引入。

  1. 首页
  2. PyQt 4.11.4
  3. 文档编制