#include <qcolumnview_p.h>

Inheritance diagram for QColumnViewPreviewColumn:

Collaboration diagram for QColumnViewPreviewColumn:

Public Member Functions
	QColumnViewPreviewColumn (QWidget *parent)

void	setPreviewWidget (QWidget *widget)

void	resizeEvent (QResizeEvent *event) override

void	scrollContentsBy (int dx, int dy) override

QRect	visualRect (const QModelIndex &) const override
	Returns the rectangle on the viewport occupied by the item at index.

void	scrollTo (const QModelIndex &, ScrollHint) override
	Scrolls the view if necessary to ensure that the item at index is visible.

QModelIndex	indexAt (const QPoint &) const override
	Returns the model index of the item at the viewport coordinates point.

QModelIndex	moveCursor (CursorAction, Qt::KeyboardModifiers) override
	Returns a QModelIndex object pointing to the next object in the view, based on the given cursorAction and keyboard modifiers specified by modifiers.

int	horizontalOffset () const override
	Returns the horizontal offset of the view.

int	verticalOffset () const override
	Returns the vertical offset of the view.

QRegion	visualRegionForSelection (const QItemSelection &) const override
	Returns the region from the viewport of the items in the given selection.

bool	isIndexHidden (const QModelIndex &) const override
	Returns `true` if the item referred to by the given index is hidden in the view, otherwise returns `false`.

void	setSelection (const QRect &, QItemSelectionModel::SelectionFlags) override
	Applies the selection flags to the items in or touched by the rectangle, rect.

Public Member Functions inherited from QAbstractItemView
	QAbstractItemView (QWidget *parent=nullptr)
	Constructs an abstract item view with the given parent.

	~QAbstractItemView ()
	Destroys the view.

virtual void	setModel (QAbstractItemModel *model)
	Sets the model for the view to present.

QAbstractItemModel *	model () const
	Returns the model that this view is presenting.

virtual void	setSelectionModel (QItemSelectionModel *selectionModel)
	Sets the current selection model to the given selectionModel.

QItemSelectionModel *	selectionModel () const
	Returns the current selection model.

void	setItemDelegate (QAbstractItemDelegate *delegate)
	Sets the item delegate for this view and its model to delegate.

QAbstractItemDelegate *	itemDelegate () const
	Returns the item delegate used by this view and model.

void	setSelectionMode (QAbstractItemView::SelectionMode mode)

QAbstractItemView::SelectionMode	selectionMode () const

void	setSelectionBehavior (QAbstractItemView::SelectionBehavior behavior)

QAbstractItemView::SelectionBehavior	selectionBehavior () const

QModelIndex	currentIndex () const
	Returns the model index of the current item.

QModelIndex	rootIndex () const
	Returns the model index of the model's root item.

void	setEditTriggers (EditTriggers triggers)

EditTriggers	editTriggers () const

void	setVerticalScrollMode (ScrollMode mode)

ScrollMode	verticalScrollMode () const

void	resetVerticalScrollMode ()

void	setHorizontalScrollMode (ScrollMode mode)

ScrollMode	horizontalScrollMode () const

void	resetHorizontalScrollMode ()

void	setAutoScroll (bool enable)

bool	hasAutoScroll () const

void	setAutoScrollMargin (int margin)

int	autoScrollMargin () const

void	setTabKeyNavigation (bool enable)

bool	tabKeyNavigation () const

void	setAlternatingRowColors (bool enable)

bool	alternatingRowColors () const

void	setIconSize (const QSize &size)

QSize	iconSize () const

void	setTextElideMode (Qt::TextElideMode mode)

Qt::TextElideMode	textElideMode () const

virtual void	keyboardSearch (const QString &search)
	Moves to and selects the item best matching the string search.

QSize	sizeHintForIndex (const QModelIndex &index) const
	Returns the size hint for the item with the specified index or an invalid size for invalid indexes.

virtual int	sizeHintForRow (int row) const
	Returns the height size hint for the specified row or -1 if there is no model.

virtual int	sizeHintForColumn (int column) const
	Returns the width size hint for the specified column or -1 if there is no model.

int	updateThreshold () const

void	setUpdateThreshold (int threshold)

void	openPersistentEditor (const QModelIndex &index)
	Opens a persistent editor on the item at the given index.

void	closePersistentEditor (const QModelIndex &index)
	Closes the persistent editor for the item at the given index.

bool	isPersistentEditorOpen (const QModelIndex &index) const

void	setIndexWidget (const QModelIndex &index, QWidget *widget)
	Sets the given widget on the item at the given index, passing the ownership of the widget to the viewport.

QWidget *	indexWidget (const QModelIndex &index) const
	Returns the widget for the item at the given index.

void	setItemDelegateForRow (int row, QAbstractItemDelegate *delegate)
	Sets the given item delegate used by this view and model for the given row.

QAbstractItemDelegate *	itemDelegateForRow (int row) const
	Returns the item delegate used by this view and model for the given row, or \nullptr if no delegate has been assigned.

void	setItemDelegateForColumn (int column, QAbstractItemDelegate *delegate)
	Sets the given item delegate used by this view and model for the given column.

QAbstractItemDelegate *	itemDelegateForColumn (int column) const
	Returns the item delegate used by this view and model for the given column.

virtual QAbstractItemDelegate *	itemDelegateForIndex (const QModelIndex &index) const

virtual QVariant	inputMethodQuery (Qt::InputMethodQuery query) const override
	\reimp

Additional Inherited Members
Public Types inherited from QAbstractItemView
enum	SelectionMode { NoSelection , SingleSelection , MultiSelection , ExtendedSelection , ContiguousSelection }
	This enum indicates how the view responds to user selections: More...

enum	SelectionBehavior { SelectItems , SelectRows , SelectColumns }
	\value SelectItems Selecting single items. More...

enum	ScrollHint { EnsureVisible , PositionAtTop , PositionAtBottom , PositionAtCenter }
	\value EnsureVisible Scroll to ensure that the item is visible. More...

enum	EditTrigger { NoEditTriggers = 0 , CurrentChanged = 1 , DoubleClicked = 2 , SelectedClicked = 4 , EditKeyPressed = 8 , AnyKeyPressed = 16 , AllEditTriggers = 31 }
	This enum describes actions which will initiate item editing. More...

enum	ScrollMode { ScrollPerItem , ScrollPerPixel }
	Describes how the scrollbar should behave. More...

Public Slots inherited from QAbstractItemView
virtual void	reset ()
	Reset the internal state of the view.

virtual void	setRootIndex (const QModelIndex &index)
	Sets the root item to the item at the given index.

virtual void	doItemsLayout ()

virtual void	selectAll ()
	Selects all items in the view.

void	edit (const QModelIndex &index)
	Starts editing the item corresponding to the given index if it is editable.

void	clearSelection ()
	Deselects all selected items.

void	setCurrentIndex (const QModelIndex &index)
	Sets the current item to be the item at index.

void	scrollToTop ()
	Scrolls the view to the top.

void	scrollToBottom ()
	Scrolls the view to the bottom.

void	update (const QModelIndex &index)
	Updates the area occupied by the given index.

Signals inherited from QAbstractItemView
void	pressed (const QModelIndex &index)
	This signal is emitted when a mouse button is pressed.

void	clicked (const QModelIndex &index)
	This signal is emitted when a mouse button is left-clicked.

void	doubleClicked (const QModelIndex &index)
	This signal is emitted when a mouse button is double-clicked.

void	activated (const QModelIndex &index)
	This signal is emitted when the item specified by index is activated by the user.

void	entered (const QModelIndex &index)
	This signal is emitted when the mouse cursor enters the item specified by index.

void	viewportEntered ()
	This signal is emitted when the mouse cursor enters the viewport.

void	iconSizeChanged (const QSize &size)

Protected Types inherited from QAbstractItemView
enum	CursorAction { MoveUp , MoveDown , MoveLeft , MoveRight , MoveHome , MoveEnd , MovePageUp , MovePageDown , MoveNext , MovePrevious }
	This enum describes the different ways to navigate between items,. More...

enum	State { NoState , DraggingState , DragSelectingState , EditingState , ExpandingState , CollapsingState , AnimatingState }
	Describes the different states the view can be in. More...

Protected Slots inherited from QAbstractItemView
virtual void	dataChanged (const QModelIndex &topLeft, const QModelIndex &bottomRight, const QList< int > &roles=QList< int >())
	This slot is called when items with the given roles are changed in the model.

virtual void	rowsInserted (const QModelIndex &parent, int start, int end)
	This slot is called when rows are inserted.

virtual void	rowsAboutToBeRemoved (const QModelIndex &parent, int start, int end)
	This slot is called when rows are about to be removed.

virtual void	selectionChanged (const QItemSelection &selected, const QItemSelection &deselected)
	This slot is called when the selection is changed.

virtual void	currentChanged (const QModelIndex &current, const QModelIndex &previous)
	This slot is called when a new item becomes the current item.

virtual void	updateEditorData ()

virtual void	updateEditorGeometries ()

virtual void	updateGeometries ()
	Updates the geometry of the child widgets of the view.

virtual void	verticalScrollbarAction (int action)

virtual void	horizontalScrollbarAction (int action)

virtual void	verticalScrollbarValueChanged (int value)

virtual void	horizontalScrollbarValueChanged (int value)

virtual void	closeEditor (QWidget *editor, QAbstractItemDelegate::EndEditHint hint)
	Closes the given editor, and releases it.

virtual void	commitData (QWidget *editor)
	Commit the data in the editor to the model.

virtual void	editorDestroyed (QObject *editor)
	This function is called when the given editor has been destroyed.

Protected Member Functions inherited from QAbstractItemView
	QAbstractItemView (QAbstractItemViewPrivate &, QWidget *parent=nullptr)

virtual QModelIndexList	selectedIndexes () const
	This convenience function returns a list of all selected and non-hidden item indexes in the view.

virtual bool	edit (const QModelIndex &index, EditTrigger trigger, QEvent *event)
	Starts editing the item at index, creating an editor if necessary, and returns `true` if the view's \l{State} is now EditingState; otherwise returns `false`.

virtual QItemSelectionModel::SelectionFlags	selectionCommand (const QModelIndex &index, const QEvent *event=nullptr) const
	Returns the SelectionFlags to be used when updating a selection model for the specified index.

virtual void	initViewItemOption (QStyleOptionViewItem *option) const

State	state () const
	Returns the item view's state.

void	setState (State state)
	Sets the item view's state to the given state.

void	scheduleDelayedItemsLayout ()
	Schedules a layout of the items in the view to be executed when the event processing starts.

void	executeDelayedItemsLayout ()
	Executes the scheduled layouts without waiting for the event processing to begin.

void	setDirtyRegion (const QRegion &region)
	Marks the given region as dirty and schedules it to be updated.

void	scrollDirtyRegion (int dx, int dy)
	Prepares the view for scrolling by ({dx},{dy}) pixels by moving the dirty regions in the opposite direction.

QPoint	dirtyRegionOffset () const
	Returns the offset of the dirty regions in the view.

void	startAutoScroll ()

void	stopAutoScroll ()

void	doAutoScroll ()

bool	focusNextPrevChild (bool next) override
	\reimp

bool	event (QEvent *event) override
	\reimp

bool	viewportEvent (QEvent *event) override
	This function is used to handle tool tips, and What's This?

void	mousePressEvent (QMouseEvent *event) override
	This function is called with the given event when a mouse button is pressed while the cursor is inside the widget.

void	mouseMoveEvent (QMouseEvent *event) override
	This function is called with the given event when a mouse move event is sent to the widget.

void	mouseReleaseEvent (QMouseEvent *event) override
	This function is called with the given event when a mouse button is released, after a mouse press event on the widget.

void	mouseDoubleClickEvent (QMouseEvent *event) override
	This function is called with the given event when a mouse button is double clicked inside the widget.

void	focusInEvent (QFocusEvent *event) override
	This function is called with the given event when the widget obtains the focus.

void	focusOutEvent (QFocusEvent *event) override
	This function is called with the given event when the widget loses the focus.

void	keyPressEvent (QKeyEvent *event) override
	This function is called with the given event when a key event is sent to the widget.

void	resizeEvent (QResizeEvent *event) override
	This function is called with the given event when a resize event is sent to the widget.

void	timerEvent (QTimerEvent *event) override
	This function is called with the given event when a timer event is sent to the widget.

void	inputMethodEvent (QInputMethodEvent *event) override
	\reimp

bool	eventFilter (QObject object, QEvent event) override
	\reimp

QSize	viewportSizeHint () const override

Properties inherited from QAbstractItemView
bool	autoScroll
	whether autoscrolling in drag move events is enabled

int	autoScrollMargin
	the size of the area when auto scrolling is triggered

EditTriggers	editTriggers
	which actions will initiate item editing

bool	tabKeyNavigation
	whether item navigation with tab and backtab is enabled.

bool	alternatingRowColors
	whether to draw the background using alternating colors

SelectionMode	selectionMode
	which selection mode the view operates in

SelectionBehavior	selectionBehavior
	which selection behavior the view uses

QSize	iconSize
	the size of items' icons

Qt::TextElideMode	textElideMode
	the position of the "..." in elided text.

ScrollMode	verticalScrollMode
	how the view scrolls its contents in the vertical direction

ScrollMode	horizontalScrollMode
	how the view scrolls its contents in the horizontal direction

int	updateThreshold

Detailed Description

Definition at line 40 of file qcolumnview_p.h.

Constructor & Destructor Documentation

◆ QColumnViewPreviewColumn()

QColumnViewPreviewColumn::QColumnViewPreviewColumn ( QWidget * parent )

inlineexplicit

Definition at line 43 of file qcolumnview_p.h.

Member Function Documentation

◆ horizontalOffset()

int QColumnViewPreviewColumn::horizontalOffset ( ) const

inlineoverridevirtual

Returns the horizontal offset of the view.

In the base class this is a pure virtual function.

See also: verticalOffset()

Implements QAbstractItemView.

Definition at line 92 of file qcolumnview_p.h.

◆ indexAt()

QModelIndex QColumnViewPreviewColumn::indexAt ( const QPoint & point ) const

inlineoverridevirtual

Returns the model index of the item at the viewport coordinates point.

In the base class this is a pure virtual function.

See also: visualRect()

Implements QAbstractItemView.

Definition at line 84 of file qcolumnview_p.h.

◆ isIndexHidden()

bool QColumnViewPreviewColumn::isIndexHidden ( const QModelIndex & index ) const

inlineoverridevirtual

Returns true if the item referred to by the given index is hidden in the view, otherwise returns false.

Hiding is a view specific feature. For example in TableView a column can be marked as hidden or a row in the TreeView.

In the base class this is a pure virtual function.

Implements QAbstractItemView.

Definition at line 102 of file qcolumnview_p.h.

◆ moveCursor()

QModelIndex QColumnViewPreviewColumn::moveCursor	(	CursorAction	cursorAction,
		Qt::KeyboardModifiers	modifiers )

inlineoverridevirtual

Returns a QModelIndex object pointing to the next object in the view, based on the given cursorAction and keyboard modifiers specified by modifiers.

In the base class this is a pure virtual function.

Implements QAbstractItemView.

Definition at line 88 of file qcolumnview_p.h.

◆ resizeEvent()

void QColumnViewPreviewColumn::resizeEvent ( QResizeEvent * event )

inlineoverride

Definition at line 51 of file qcolumnview_p.h.

◆ scrollContentsBy()

void QColumnViewPreviewColumn::scrollContentsBy	(	int	dx,
		int	dy )

inlineoverride

Definition at line 67 of file qcolumnview_p.h.

◆ scrollTo()

void QColumnViewPreviewColumn::scrollTo	(	const QModelIndex &	index,
		ScrollHint	hint )

inlineoverridevirtual

Scrolls the view if necessary to ensure that the item at index is visible.

The view will try to position the item according to the given hint.

In the base class this is a pure virtual function.

Implements QAbstractItemView.

Definition at line 81 of file qcolumnview_p.h.

◆ setPreviewWidget()

void QColumnViewPreviewColumn::setPreviewWidget ( QWidget * widget )

inline

Definition at line 46 of file qcolumnview_p.h.

◆ setSelection()

void QColumnViewPreviewColumn::setSelection	(	const QRect &	rect,
		QItemSelectionModel::SelectionFlags	flags )

inlineoverridevirtual

Applies the selection flags to the items in or touched by the rectangle, rect.

When implementing your own itemview setSelection should call selectionModel()->select(selection, flags) where selection is either an empty QModelIndex or a QItemSelection that contains all items that are contained in rect.

See also: selectionCommand(), selectedIndexes()

Implements QAbstractItemView.

Definition at line 106 of file qcolumnview_p.h.

◆ verticalOffset()

int QColumnViewPreviewColumn::verticalOffset ( ) const

inlineoverridevirtual

Returns the vertical offset of the view.

In the base class this is a pure virtual function.

See also: horizontalOffset()

Implements QAbstractItemView.

Definition at line 95 of file qcolumnview_p.h.

◆ visualRect()

QRect QColumnViewPreviewColumn::visualRect ( const QModelIndex & index ) const

inlineoverridevirtual

Returns the rectangle on the viewport occupied by the item at index.

If your item is displayed in several areas then visualRect should return the primary area that contains index and not the complete area that index might encompasses, touch or cause drawing.

In the base class this is a pure virtual function.