QColumnView 類

QColumnView 類為列視圖提供模型/視圖實現。 更多...

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

該類在 Qt 4.3 引入。

• 所有成員列錶，包括繼承成員

特性

• resizeGripsVisible : bool

公共函數

	QColumnView (QWidget * parent = nullptr)
virtual	~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 override
virtual void	scrollTo (const QModelIndex & index , QAbstractItemView::ScrollHint hint = EnsureVisible) override
virtual void	selectAll () override
virtual void	setModel (QAbstractItemModel * model ) override
virtual void	setRootIndex (const QModelIndex & index ) override
virtual void	setSelectionModel (QItemSelectionModel * newSelectionModel ) override
virtual QSize	sizeHint () const override
virtual QRect	visualRect (const QModelIndex & index ) const override

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

詳細描述

QColumnView displays a model in a number of QListViews, one for each hierarchy in the tree. This is sometimes referred to as a cascading list.

The QColumnView class is one of the 模型/視圖類 且屬於 Qt 的 模型/視圖框架 .

QColumnView implements the interfaces defined by the 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 = 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 .

[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 ().

[虛擬] 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 ().

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

重實現： QAbstractItemView::currentChanged (const QModelIndex ¤t, const QModelIndex &previous).

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

重實現： QAbstractItemView::horizontalOffset () const.

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

重實現： QAbstractItemView::indexAt (const QPoint &point) const.

[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 ().

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

重實現： QAbstractItemView::isIndexHidden (const QModelIndex &index) const.

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

重實現： QAbstractItemView::moveCursor (QAbstractItemView::CursorAction cursorAction, Qt::KeyboardModifiers modifiers).

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 nullptr 若沒有。

另請參閱 setPreviewWidget () 和 updatePreviewWidget ().

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

重實現： QAbstractItemView::resizeEvent (QResizeEvent *event).

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

重實現： QAbstractItemView::rowsInserted (const QModelIndex &parent, int start, int end).

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

重實現： QAbstractScrollArea::scrollContentsBy (int dx, int dy).

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

重實現： QAbstractItemView::scrollTo (const QModelIndex &index, QAbstractItemView::ScrollHint hint).

[override virtual] void QColumnView:: selectAll ()

重實現： 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 ().

[override virtual] void QColumnView:: setModel ( QAbstractItemModel * model )

重實現： QAbstractItemView::setModel (QAbstractItemModel *model).

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 ().

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

重實現： QAbstractItemView::setRootIndex (const QModelIndex &index).

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

重實現： QAbstractItemView::setSelection (const QRect &rect, QItemSelectionModel::SelectionFlags flags).

[override virtual] void QColumnView:: setSelectionModel ( QItemSelectionModel * newSelectionModel )

重實現： QAbstractItemView::setSelectionModel (QItemSelectionModel *selectionModel).

[override virtual] QSize QColumnView:: sizeHint () const

重實現： QAbstractScrollArea::sizeHint () const.

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

重實現： QAbstractItemView::verticalOffset () const.

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

重實現： QAbstractItemView::visualRect (const QModelIndex &index) const.

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

重實現： QAbstractItemView::visualRegionForSelection (const QItemSelection &selection) const.

內容

1. 特性

2. 公共函數

3. 重實現公共函數

4. 信號

5. 保護函數

6. 重實現保護函數

7. 詳細描述