QColumnView 類

The QColumnView 類提供列視圖的模型/視圖實現。 更多...

頭: #include <QColumnView>
qmake: QT += widgets
Since: Qt 4.3
繼承: QAbstractItemView

特性

公共函數

QColumnView (QWidget * parent = Q_NULLPTR)
~QColumnView ()
QList<int> columnWidths () const
QWidget * previewWidget () const
bool resizeGripsVisible () const
void setColumnWidths (const QList<int> & list )
void setPreviewWidget (QWidget * widget )
void setResizeGripsVisible (bool visible )

重實現公共函數

virtual QModelIndex indexAt (const QPoint & point ) const
virtual void scrollTo (const QModelIndex & index , ScrollHint hint = EnsureVisible)
virtual void selectAll ()
virtual void setModel (QAbstractItemModel * model )
virtual void setRootIndex (const QModelIndex & index )
virtual void setSelectionModel (QItemSelectionModel * newSelectionModel )
virtual QSize sizeHint () const
virtual QRect visualRect (const QModelIndex & index ) const

信號

void updatePreviewWidget (const QModelIndex & index )

保護函數

virtual QAbstractItemView * createColumn (const QModelIndex & index )
void initializeColumn (QAbstractItemView * column ) const

重實現保護函數

virtual void currentChanged (const QModelIndex & current , const QModelIndex & previous )
virtual int horizontalOffset () const
virtual bool isIndexHidden (const QModelIndex & index ) const
virtual QModelIndex moveCursor (CursorAction cursorAction , Qt::KeyboardModifiers modifiers )
virtual void resizeEvent (QResizeEvent * event )
virtual void rowsInserted (const QModelIndex & parent , int start , int end )
virtual void scrollContentsBy (int dx , int dy )
virtual void setSelection (const QRect & rect , QItemSelectionModel::SelectionFlags command )
virtual int verticalOffset () const
virtual QRegion visualRegionForSelection (const QItemSelection & selection ) const

額外繼承成員

詳細描述

The QColumnView 類提供列視圖的模型/視圖實現。

QColumnView 在很多 QListView 中顯示模型,樹中的每個層次結構都是 QListView。這有時稱為級聯列錶。

The QColumnView 類是一種 模型/視圖類 且屬於 Qt 的 模型/視圖框架 .

QColumnView 實現接口的定義通過 QAbstractItemView 類以允許它顯示提供數據,通過模型派生自 QAbstractItemModel 類。

另請參閱 模型/視圖編程 .

特性文檔編製

resizeGripsVisible : bool

This property holds the way to specify if the list views gets resize grips or not

默認情況下, visible is set to true

訪問函數:

bool resizeGripsVisible () const
void setResizeGripsVisible (bool visible )

另請參閱 setRootIndex ().

成員函數文檔編製

QColumnView:: QColumnView ( QWidget * parent = Q_NULLPTR)

構造列視圖采用 parent 來錶示模型數據。使用 setModel () 來設置模型。

另請參閱 QAbstractItemModel .

QColumnView:: ~QColumnView ()

銷毀列視圖。

QList < int > QColumnView:: columnWidths () const

Returns a list of the width of all the columns in this view.

另請參閱 setColumnWidths ().

[virtual protected] QAbstractItemView *QColumnView:: createColumn (const QModelIndex & index )

To use a custom widget for the final column when you select an item overload this function and return a widget. index is the root index that will be assigned to the view.

Return the new view. QColumnView will automatically take ownership of the widget.

另請參閱 setPreviewWidget ().

[virtual protected] void QColumnView:: currentChanged (const QModelIndex & current , const QModelIndex & previous )

重實現自 QAbstractItemView::currentChanged ().

[virtual protected] int QColumnView:: horizontalOffset () const

重實現自 QAbstractItemView::horizontalOffset ().

[虛擬] QModelIndex QColumnView:: indexAt (const QPoint & point ) const

重實現自 QAbstractItemView::indexAt ().

[protected] void QColumnView:: initializeColumn ( QAbstractItemView * column ) const

Copies the behavior and options of the column view and applies them to the column such as the iconSize (), textElideMode () 和 alternatingRowColors (). This can be useful when reimplementing createColumn ().

該函數在 Qt 4.4 引入。

另請參閱 createColumn ().

[virtual protected] bool QColumnView:: isIndexHidden (const QModelIndex & index ) const

重實現自 QAbstractItemView::isIndexHidden ().

[virtual protected] QModelIndex QColumnView:: moveCursor ( CursorAction cursorAction , Qt::KeyboardModifiers modifiers )

重實現自 QAbstractItemView::moveCursor ().

Move left should go to the parent index Move right should go to the child index or down if there is no child

QWidget *QColumnView:: previewWidget () const

Returns the preview widget, or 0 if there is none.

另請參閱 setPreviewWidget () 和 updatePreviewWidget ().

[virtual protected] void QColumnView:: resizeEvent ( QResizeEvent * event )

重實現自 QWidget::resizeEvent ().

[virtual protected] void QColumnView:: rowsInserted (const QModelIndex & parent , int start , int end )

重實現自 QAbstractItemView::rowsInserted ().

[virtual protected] void QColumnView:: scrollContentsBy ( int dx , int dy )

重實現自 QAbstractScrollArea::scrollContentsBy ().

[虛擬] void QColumnView:: scrollTo (const QModelIndex & index , ScrollHint hint = EnsureVisible)

重實現自 QAbstractItemView::scrollTo ().

[虛擬] void QColumnView:: selectAll ()

重實現自 QAbstractItemView::selectAll ().

void QColumnView:: setColumnWidths (const QList < int > & list )

Sets the column widths to the values given in the list . Extra values in the list are kept and used when the columns are created.

If list contains too few values, only width of the rest of the columns will not be modified.

另請參閱 columnWidths () 和 createColumn ().

[虛擬] void QColumnView:: setModel ( QAbstractItemModel * model )

重實現自 QAbstractItemView::setModel ().

void QColumnView:: setPreviewWidget ( QWidget * widget )

設置預覽 widget .

The widget becomes a child of the column view, and will be destroyed when the column area is deleted or when a new widget is set.

另請參閱 previewWidget () 和 updatePreviewWidget ().

[虛擬] void QColumnView:: setRootIndex (const QModelIndex & index )

重實現自 QAbstractItemView::setRootIndex ().

[virtual protected] void QColumnView:: setSelection (const QRect & rect , QItemSelectionModel::SelectionFlags command )

重實現自 QAbstractItemView::setSelection ().

[虛擬] void QColumnView:: setSelectionModel ( QItemSelectionModel * newSelectionModel )

重實現自 QAbstractItemView::setSelectionModel ().

[虛擬] QSize QColumnView:: sizeHint () const

重實現自 QWidget::sizeHint ().

[signal] void QColumnView:: updatePreviewWidget (const QModelIndex & index )

This signal is emitted when the preview widget should be updated to provide rich information about index

另請參閱 previewWidget ().

[virtual protected] int QColumnView:: verticalOffset () const

重實現自 QAbstractItemView::verticalOffset ().

[虛擬] QRect QColumnView:: visualRect (const QModelIndex & index ) const

重實現自 QAbstractItemView::visualRect ().

[virtual protected] QRegion QColumnView:: visualRegionForSelection (const QItemSelection & selection ) const

重實現自 QAbstractItemView::visualRegionForSelection ().