QColumnView 类为列视图提供模型/视图实现。 更多...
头: | #include <QColumnView> |
CMake: |
find_package(Qt6 COMPONENTS Widgets REQUIRED)
target_link_libraries(mytarget PRIVATE Qt6::Widgets) |
qmake: | QT += widgets |
继承: | QAbstractItemView |
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 ) |
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 |
void | updatePreviewWidget (const QModelIndex & index ) |
virtual QAbstractItemView * | createColumn (const QModelIndex & index ) |
void | initializeColumn (QAbstractItemView * column ) const |
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 |
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/视图类 且属于 Qt 的 模型/视图框架 .
QColumnView implements the interfaces defined by the QAbstractItemView 类以允许它显示提供数据,通过模型派生自 QAbstractItemModel 类。
另请参阅 模型/视图编程 .
This property holds the way to specify if the list views gets resize grips or not
默认情况下,
visible
is set to true
访问函数:
bool | resizeGripsVisible () const |
void | setResizeGripsVisible (bool visible ) |
另请参阅 setRootIndex ().
构造列视图采用 parent 来表示模型数据。使用 setModel () 来设置模型。
另请参阅 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
另请参阅 previewWidget ().
[virtual]
QColumnView::
~QColumnView
()
销毁列视图。
Returns a list of the width of all the columns in this view.
另请参阅 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.
另请参阅 setPreviewWidget ().
[override virtual protected]
void
QColumnView::
currentChanged
(const
QModelIndex
&
current
, const
QModelIndex
&
previous
)
重实现: QAbstractItemView::currentChanged (const QModelIndex ¤t, const QModelIndex &previous).
[override virtual protected]
int
QColumnView::
horizontalOffset
() const
重实现: QAbstractItemView::horizontalOffset () const.
[override virtual]
QModelIndex
QColumnView::
indexAt
(const
QPoint
&
point
) const
重实现: 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 ().
另请参阅 createColumn ().
[override virtual protected]
bool
QColumnView::
isIndexHidden
(const
QModelIndex
&
index
) const
重实现: QAbstractItemView::isIndexHidden (const QModelIndex &index) const.
[override virtual protected]
QModelIndex
QColumnView::
moveCursor
(
QAbstractItemView::CursorAction
cursorAction
,
Qt::KeyboardModifiers
modifiers
)
重实现: 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
Returns the preview widget, or
nullptr
若没有。
另请参阅 setPreviewWidget () 和 updatePreviewWidget ().
[override virtual protected]
void
QColumnView::
resizeEvent
(
QResizeEvent
*
event
)
重实现: QAbstractItemView::resizeEvent (QResizeEvent *event).
[override virtual protected]
void
QColumnView::
rowsInserted
(const
QModelIndex
&
parent
,
int
start
,
int
end
)
重实现: QAbstractItemView::rowsInserted (const QModelIndex &parent, int start, int end).
[override virtual protected]
void
QColumnView::
scrollContentsBy
(
int
dx
,
int
dy
)
重实现: QAbstractScrollArea::scrollContentsBy (int dx, int dy).
[override virtual]
void
QColumnView::
scrollTo
(const
QModelIndex
&
index
,
QAbstractItemView::ScrollHint
hint
= EnsureVisible)
重实现: QAbstractItemView::scrollTo (const QModelIndex &index, QAbstractItemView::ScrollHint hint).
[override virtual]
void
QColumnView::
selectAll
()
重实现: QAbstractItemView::selectAll ().
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.
另请参阅 columnWidths () 和 createColumn ().
[override virtual]
void
QColumnView::
setModel
(
QAbstractItemModel
*
model
)
重实现: QAbstractItemView::setModel (QAbstractItemModel *model).
设置预览 widget .
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.
另请参阅 previewWidget () 和 updatePreviewWidget ().
[override virtual]
void
QColumnView::
setRootIndex
(const
QModelIndex
&
index
)
重实现: QAbstractItemView::setRootIndex (const QModelIndex &index).
[override virtual protected]
void
QColumnView::
setSelection
(const
QRect
&
rect
,
QItemSelectionModel::SelectionFlags
command
)
重实现: QAbstractItemView::setSelection (const QRect &rect, QItemSelectionModel::SelectionFlags flags).
[override virtual]
void
QColumnView::
setSelectionModel
(
QItemSelectionModel
*
newSelectionModel
)
重实现: QAbstractItemView::setSelectionModel (QItemSelectionModel *selectionModel).
[override virtual]
QSize
QColumnView::
sizeHint
() const
重实现: QAbstractScrollArea::sizeHint () const.
[override virtual protected]
int
QColumnView::
verticalOffset
() const
重实现: QAbstractItemView::verticalOffset () const.
[override virtual]
QRect
QColumnView::
visualRect
(const
QModelIndex
&
index
) const
重实现: QAbstractItemView::visualRect (const QModelIndex &index) const.
[override virtual protected]
QRegion
QColumnView::
visualRegionForSelection
(const
QItemSelection
&
selection
) const
重实现: QAbstractItemView::visualRegionForSelection (const QItemSelection &selection) const.