QColumnView Class

Member Function Documentation

QColumnView::QColumnView(QWidget *parent = nullptr)

Constructs a column view with a parent to represent a model's data. Use setModel() to set the model.

See also 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

See also previewWidget().

[virtual] QColumnView::~QColumnView()

Destroys the column view.

QList<int> QColumnView::columnWidths() const

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

See also 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.

See also setPreviewWidget().

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

Reimplements: QAbstractItemView::currentChanged(const QModelIndex &current, const QModelIndex &previous).

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

Reimplements: QAbstractItemView::horizontalOffset() const.

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

Reimplements: 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() and alternatingRowColors(). This can be useful when reimplementing createColumn().

This function was introduced in Qt 4.4.

See also createColumn().

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

Reimplements: QAbstractItemView::isIndexHidden(const QModelIndex &index) const.

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

Reimplements: 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 if there is none.

See also setPreviewWidget() and updatePreviewWidget().

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

Reimplements: QAbstractItemView::resizeEvent(QResizeEvent *event).

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

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

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

Reimplements: QAbstractScrollArea::scrollContentsBy(int dx, int dy).

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

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

[override virtual] void QColumnView::selectAll()

Reimplements: 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.

See also columnWidths() and createColumn().

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

Reimplements: QAbstractItemView::setModel(QAbstractItemModel *model).

void QColumnView::setPreviewWidget(QWidget *widget)

Sets the preview 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.

See also previewWidget() and updatePreviewWidget().

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

Reimplements: QAbstractItemView::setRootIndex(const QModelIndex &index).

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

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

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

Reimplements: QAbstractItemView::setSelectionModel(QItemSelectionModel *selectionModel).

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

Reimplements: QAbstractScrollArea::sizeHint() const.

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

Reimplements: QAbstractItemView::verticalOffset() const.

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

Reimplements: QAbstractItemView::visualRect(const QModelIndex &index) const.

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

Reimplements: QAbstractItemView::visualRegionForSelection(const QItemSelection &selection) const.