# QColumnView Class Reference
## [[QtGui](index.htm) module]
该QColumnView类提供了一个模型/视图实现列视图中。[More...](#details)
继承[QAbstractItemView](qabstractitemview.html)。
### Methods
* `__init__ (self, QWidget parent = None)`
* `list-of-int columnWidths (self)`
* `QAbstractItemView createColumn (self, QModelIndex rootIndex)`
* `currentChanged (self, QModelIndex current, QModelIndex previous)`
* `int horizontalOffset (self)`
* `QModelIndex indexAt (self, QPoint point)`
* `initializeColumn (self, QAbstractItemView column)`
* `bool isIndexHidden (self, QModelIndex index)`
* `QModelIndex moveCursor (self, QAbstractItemView.CursorAction cursorAction, Qt.KeyboardModifiers modifiers)`
* `QWidget previewWidget (self)`
* `resizeEvent (self, QResizeEvent event)`
* `bool resizeGripsVisible (self)`
* `rowsInserted (self, QModelIndex parent, int start, int end)`
* `scrollContentsBy (self, int dx, int dy)`
* `scrollTo (self, QModelIndex index, QAbstractItemView.ScrollHint hint = QAbstractItemView.EnsureVisible)`
* `selectAll (self)`
* `setColumnWidths (self, list-of-int list)`
* `setModel (self, QAbstractItemModel model)`
* `setPreviewWidget (self, QWidget widget)`
* `setResizeGripsVisible (self, bool visible)`
* `setRootIndex (self, QModelIndex index)`
* `setSelection (self, QRect rect, QItemSelectionModel.SelectionFlags command)`
* `setSelectionModel (self, QItemSelectionModel selectionModel)`
* `QSize sizeHint (self)`
* `int verticalOffset (self)`
* `QRect visualRect (self, QModelIndex index)`
* `QRegion visualRegionForSelection (self, QItemSelection selection)`
### Qt Signals
* `void updatePreviewWidget (const QModelIndex&)`
* * *
## Detailed Description
该QColumnView类提供了一个模型/视图实现列视图中。
QColumnView在一些QListViews ,一个用于在该树中的每个层次的显示一个模型。这有时被称为级联列表。
该QColumnView类是一个[Model/View Classes](index.htm)并且是Qt的一部分[model/view framework](index.htm)。
QColumnView实现由定义的接口[QAbstractItemView](qabstractitemview.html)类以允许其显示由从派生模型提供数据[QAbstractItemModel](qabstractitemmodel.html)类。
![](https://img.kancloud.cn/fd/09/fd09d87b55b92f8c123e9c94566855c2_449x200.png)
* * *
## Method Documentation
```
QColumnView.__init__ (self, QWidget parent = None)
```
该_parent_的说法,如果不是没有,原因_self_通过Qt的,而不是PyQt的拥有。
构造一个列视图_parent_来表示模型的数据。使用[setModel](qcolumnview.html#setModel)()来设定模型。
**See also** [QAbstractItemModel](qabstractitemmodel.html)。
```
list-of-int QColumnView.columnWidths (self)
```
返回此视图中的所有列的宽度的列表。
**See also** [setColumnWidths](qcolumnview.html#setColumnWidths)( ) 。
```
QAbstractItemView QColumnView.createColumn (self, QModelIndex rootIndex)
```
[
要使用自定义部件的最后一列,当你选择一个项目超负荷此功能,并返回一个widget 。_index_是将被分配到该视图的根索引。
](qabstractitemview.html)
[返回新的观点。](qabstractitemview.html)[QColumnView](qcolumnview.html)便会自动将窗口小部件的所有权。
**See also** [setPreviewWidget](qcolumnview.html#setPreviewWidget)( ) 。
```
QColumnView.currentChanged (self, QModelIndex current, QModelIndex previous)
```
这种方法也是一个Qt槽与C + +的签名`void currentChanged(const QModelIndex&,const QModelIndex&)`。
从重新实现[QAbstractItemView.currentChanged](qabstractitemview.html#currentChanged)( ) 。
```
int QColumnView.horizontalOffset (self)
```
从重新实现[QAbstractItemView.horizontalOffset](qabstractitemview.html#horizontalOffset)( ) 。
```
QModelIndex QColumnView.indexAt (self, QPoint point)
```
[](qmodelindex.html)
[从重新实现](qmodelindex.html)[QAbstractItemView.indexAt](qabstractitemview.html#indexAt)( ) 。
```
QColumnView.initializeColumn (self, QAbstractItemView column)
```
复制列视图的行为和选择,并将它们应用到_column_如[iconSize](qabstractitemview.html#iconSize-prop)( )[textElideMode](qabstractitemview.html#textElideMode-prop)()和[alternatingRowColors](qabstractitemview.html#alternatingRowColors-prop)( ) 。重新实现时,这可能是有用的[createColumn](qcolumnview.html#createColumn)( ) 。
此功能被引入Qt的4.4 。
**See also** [createColumn](qcolumnview.html#createColumn)( ) 。
```
bool QColumnView.isIndexHidden (self, QModelIndex index)
```
从重新实现[QAbstractItemView.isIndexHidden](qabstractitemview.html#isIndexHidden)( ) 。
```
QModelIndex QColumnView.moveCursor (self, QAbstractItemView.CursorAction cursorAction, Qt.KeyboardModifiers modifiers)
```
[](qmodelindex.html)
[从重新实现](qmodelindex.html)[QAbstractItemView.moveCursor](qabstractitemview.html#moveCursor)( ) 。
向左移动应该去主指数向右移动应该去子索引或下降,如果没有孩子
```
QWidget QColumnView.previewWidget (self)
```
[
返回预览窗口小部件,或者0,如果是没有的。
](qwidget.html)
[**See also**](qwidget.html) [setPreviewWidget](qcolumnview.html#setPreviewWidget)()和[updatePreviewWidget](qcolumnview.html#updatePreviewWidget)( ) 。
```
QColumnView.resizeEvent (self, QResizeEvent event)
```
从重新实现[QWidget.resizeEvent](qwidget.html#resizeEvent)( ) 。
```
bool QColumnView.resizeGripsVisible (self)
```
```
QColumnView.rowsInserted (self, QModelIndex parent, int start, int end)
```
从重新实现[QAbstractItemView.rowsInserted](qabstractitemview.html#rowsInserted)( ) 。
```
QColumnView.scrollContentsBy (self, int dx, int dy)
```
从重新实现[QAbstractScrollArea.scrollContentsBy](qabstractscrollarea.html#scrollContentsBy)( ) 。
```
QColumnView.scrollTo (self, QModelIndex index, QAbstractItemView.ScrollHint hint = QAbstractItemView.EnsureVisible)
```
从重新实现[QAbstractItemView.scrollTo](qabstractitemview.html#scrollTo)( ) 。
```
QColumnView.selectAll (self)
```
从重新实现[QAbstractItemView.selectAll](qabstractitemview.html#selectAll)( ) 。
```
QColumnView.setColumnWidths (self, list-of-int list)
```
列宽设置为在给定的值_list_。在列表中多馀的值会保持不变,在创建列时使用。
如果列表中包含的值太少,只有宽度的列的其馀部分将不会被修改。
**See also** [columnWidths](qcolumnview.html#columnWidths)()和[createColumn](qcolumnview.html#createColumn)( ) 。
```
QColumnView.setModel (self, QAbstractItemModel model)
```
从重新实现[QAbstractItemView.setModel](qabstractitemview.html#setModel)( ) 。
```
QColumnView.setPreviewWidget (self, QWidget widget)
```
该_widget_说法有它的所有权转移给Qt的。
设置预览_widget_。
该_widget_成为列视图的孩子,当列区域被删除或者当一个新的widget设定将被破坏。
**See also** [previewWidget](qcolumnview.html#previewWidget)()和[updatePreviewWidget](qcolumnview.html#updatePreviewWidget)( ) 。
```
QColumnView.setResizeGripsVisible (self, bool visible)
```
```
QColumnView.setRootIndex (self, QModelIndex index)
```
从重新实现[QAbstractItemView.setRootIndex](qabstractitemview.html#setRootIndex)( ) 。
```
QColumnView.setSelection (self, QRect rect, QItemSelectionModel.SelectionFlags command)
```
从重新实现[QAbstractItemView.setSelection](qabstractitemview.html#setSelection)( ) 。
```
QColumnView.setSelectionModel (self, QItemSelectionModel selectionModel)
```
从重新实现[QAbstractItemView.setSelectionModel](qabstractitemview.html#setSelectionModel)( ) 。
```
QSize QColumnView.sizeHint (self)
```
[](qsize.html)
[从重新实现](qsize.html)[QWidget.sizeHint](qwidget.html#sizeHint-prop)( ) 。
```
int QColumnView.verticalOffset (self)
```
从重新实现[QAbstractItemView.verticalOffset](qabstractitemview.html#verticalOffset)( ) 。
```
QRect QColumnView.visualRect (self, QModelIndex index)
```
[](qrect.html)
[从重新实现](qrect.html)[QAbstractItemView.visualRect](qabstractitemview.html#visualRect)( ) 。
```
QRegion QColumnView.visualRegionForSelection (self, QItemSelection selection)
```
[](qregion.html)
[从重新实现](qregion.html)[QAbstractItemView.visualRegionForSelection](qabstractitemview.html#visualRegionForSelection)( ) 。
* * *
## Qt Signal Documentation
```
void updatePreviewWidget (const QModelIndex&)
```
这是该信号的默认超载。
这个信号被发射时,预览窗口小部件应进行更新,以提供有关致富信息_index_
**See also** [previewWidget](qcolumnview.html#previewWidget)( ) 。
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- QTextBlock Class Reference
- QTextBlockFormat Class Reference
- QTextBlockGroup Class Reference
- QTextBlockUserData Class Reference
- QTextBoundaryFinder Class Reference
- QTextBrowser Class Reference
- QTextCharFormat Class Reference
- QTextCodec Class Reference
- QTextCursor Class Reference
- QTextDecoder Class Reference
- QTextDocument Class Reference
- QTextDocumentFragment Class Reference
- QTextDocumentWriter Class Reference
- QTextEdit Class Reference
- QTextEncoder Class Reference
- QTextFormat Class Reference
- QTextFragment Class Reference
- QTextFrame Class Reference
- QTextFrameFormat Class Reference
- QTextImageFormat Class Reference
- QTextInlineObject Class Reference
- QTextItem Class Reference
- QTextLayout Class Reference
- QTextLength Class Reference
- QTextLine Class Reference
- QTextList Class Reference
- QTextListFormat Class Reference
- QTextObject Class Reference
- QTextObjectInterface Class Reference
- QTextOption Class Reference
- QTextStream Class Reference
- QTextTable Class Reference
- QTextTableCell Class Reference
- QTextTableCellFormat Class Reference
- QTextTableFormat Class Reference
- QThread Class Reference
- QThreadPool Class Reference
- QTime Class Reference
- QTimeEdit Class Reference
- QTimeLine Class Reference
- QTimer Class Reference
- QTimerEvent Class Reference
- QToolBar Class Reference
- QToolBox Class Reference
- QToolButton Class Reference
- QToolTip Class Reference
- QTouchEvent Class Reference
- Reference
- QTransform Class Reference
- QTranslator Class Reference
- QTreeView Class Reference
- QTreeWidget Class Reference
- QTreeWidgetItem Class Reference
- QTreeWidgetItemIterator Class Reference
- QUdpSocket Class Reference
- QUndoCommand Class Reference
- QUndoGroup Class Reference
- QUndoStack Class Reference
- QUndoView Class Reference
- QUrl Class Reference
- QUrlInfo Class Reference
- QUuid Class Reference
- QValidator Class Reference
- QVariant Class Reference
- QVariantAnimation Class Reference
- QVBoxLayout Class Reference
- QVector2D Class Reference
- QVector3D Class Reference
- QVector4D Class Reference
- QVideoFrame Class Reference
- QVideoSurfaceFormat Class Reference
- QWaitCondition Class Reference
- QWebDatabase Class Reference
- QWebElement Class Reference
- QWebElementCollection Class Reference
- QWebFrame Class Reference
- QWebHistory Class Reference
- QWebHistoryInterface Class Reference
- QWebHistoryItem Class Reference
- QWebHitTestResult Class Reference
- QWebInspector Class Reference
- QWebPage Class Reference
- QWebPluginFactory Class Reference
- QWebSecurityOrigin Class Reference
- QWebSettings Class Reference
- QWebView Class Reference
- QWhatsThis Class Reference
- QWhatsThisClickedEvent Class Reference
- QWheelEvent Class Reference
- QWidget Class Reference
- QWidgetAction Class Reference
- QWidgetItem Class Reference
- QWindowStateChangeEvent Class Reference
- QWizard Class Reference
- QWizardPage Class Reference
- QWorkspace Class Reference
- QWriteLocker Class Reference
- QX11EmbedContainer Class Reference
- QX11EmbedWidget Class Reference
- QX11Info Class Reference
- QXmlAttributes Class Reference
- QXmlContentHandler Class Reference
- QXmlDeclHandler Class Reference
- QXmlDefaultHandler Class Reference
- QXmlDTDHandler Class Reference
- QXmlEntityResolver Class Reference
- QXmlErrorHandler Class Reference
- QXmlFormatter Class Reference
- QXmlInputSource Class Reference
- QXmlItem Class Reference
- QXmlLexicalHandler Class Reference
- QXmlLocator Class Reference
- QXmlName Class Reference
- QXmlNamePool Class Reference
- QXmlNamespaceSupport Class Reference
- QXmlNodeModelIndex Class Reference
- QXmlParseException Class Reference
- QXmlQuery Class Reference
- QXmlReader Class Reference
- QXmlResultItems Class Reference
- QXmlSchema Class Reference
- QXmlSchemaValidator Class Reference
- QXmlSerializer Class Reference
- QXmlSimpleReader Class Reference
- QXmlStreamAttribute Class Reference
- QXmlStreamAttributes Class Reference
- QXmlStreamEntityDeclaration Class Reference
- QXmlStreamEntityResolver Class Reference
- QXmlStreamNamespaceDeclaration Class Reference
- QXmlStreamNotationDeclaration Class Reference
- QXmlStreamReader Class Reference
- QXmlStreamWriter Class Reference