QTreeWidget#

The QTreeWidget class provides a tree view that uses a predefined tree model. More…

Synopsis#

Properties#

columnCount - The number of columns displayed in the tree widget
topLevelItemCount - The number of top-level items

Functions#

def addTopLevelItem (item)
def addTopLevelItems (items)
def closePersistentEditor (item[, column=0])
def columnCount ()
def currentColumn ()
def currentItem ()
def editItem (item[, column=0])
def findItems (text, flags[, column=0])
def headerItem ()
def indexFromItem (item[, column=0])
def indexOfTopLevelItem (item)
def insertTopLevelItem (index, item)
def insertTopLevelItems (index, items)
def invisibleRootItem ()
def isPersistentEditorOpen (item[, column=0])
def itemAbove (item)
def itemAt (p)
def itemAt (x, y)
def itemBelow (item)
def itemFromIndex (index)
def itemWidget (item, column)
def openPersistentEditor (item[, column=0])
def removeItemWidget (item, column)
def selectedItems ()
def setColumnCount (columns)
def setCurrentItem (item)
def setCurrentItem (item, column, command)
def setCurrentItem (item, column)
def setHeaderItem (item)
def setHeaderLabel (label)
def setHeaderLabels (labels)
def setItemWidget (item, column, widget)
def sortColumn ()
def sortItems (column, order)
def takeTopLevelItem (index)
def topLevelItem (index)
def topLevelItemCount ()
def visualItemRect (item)

Virtual functions#

def dropMimeData (parent, index, data, action)
def mimeData (items)
def mimeTypes ()
def supportedDropActions ()

Slots#

def clear ()
def collapseItem (item)
def expandItem (item)
def scrollToItem (item[, hint=QAbstractItemView.ScrollHint.EnsureVisible])

Signals#

def currentItemChanged (current, previous)
def itemActivated (item, column)
def itemChanged (item, column)
def itemClicked (item, column)
def itemCollapsed (item)
def itemDoubleClicked (item, column)
def itemEntered (item, column)
def itemExpanded (item)
def itemPressed (item, column)
def itemSelectionChanged ()

Note

This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE

Detailed Description#

Warning

This section contains snippets that were automatically translated from C++ to Python and may contain errors.

The QTreeWidget class is a convenience class that provides a standard tree widget with a classic item-based interface similar to that used by the QListView class in Qt 3. This class is based on Qt’s Model/View architecture and uses a default model to hold items, each of which is a QTreeWidgetItem .

Developers who do not need the flexibility of the Model/View framework can use this class to create simple hierarchical lists very easily. A more flexible approach involves combining a QTreeView with a standard item model. This allows the storage of data to be separated from its representation.

In its simplest form, a tree widget can be constructed in the following way:

treeWidget = QTreeWidget()
treeWidget.setColumnCount(1)
*> = QList<QTreeWidgetItem()
for i in range(0, 10):
    items.append(QTreeWidgetItem(QTreeWidget(None), QStringList(QString("item: %1").arg(i))))
treeWidget.insertTopLevelItems(0, items)

Before items can be added to the tree widget, the number of columns must be set with setColumnCount() . This allows each item to have one or more labels or other decorations. The number of columns in use can be found with the columnCount() function.

The tree can have a header that contains a section for each column in the widget. It is easiest to set up the labels for each section by supplying a list of strings with setHeaderLabels() , but a custom header can be constructed with a QTreeWidgetItem and inserted into the tree with the setHeaderItem() function.

The items in the tree can be sorted by column according to a predefined sort order. If sorting is enabled, the user can sort the items by clicking on a column header. Sorting can be enabled or disabled by calling setSortingEnabled() . The isSortingEnabled() function indicates whether sorting is enabled.

See also

QTreeWidgetItem QTreeWidgetItemIterator QTreeView Model/View Programming Settings Editor Example

class PySide6.QtWidgets.QTreeWidget([parent=None])#

Parameters:: parent – PySide6.QtWidgets.QWidget

Constructs a tree widget with the given parent.

Note

Properties can be used directly when from __feature__ import true_property is used or via accessor functions otherwise.

property PᅟySide6.QtWidgets.QTreeWidget.columnCount: int#

This property holds the number of columns displayed in the tree widget.

By default, this property has a value of 1.

Access functions:

columnCount ()
setColumnCount (columns)

property PᅟySide6.QtWidgets.QTreeWidget.topLevelItemCount: int#

This property holds the number of top-level items.

By default, this property has a value of 0.

See also

columnCount() currentItem()

Access functions:

topLevelItemCount ()

PySide6.QtWidgets.QTreeWidget.addTopLevelItem(item)#

Parameters:: item – PySide6.QtWidgets.QTreeWidgetItem

Appends the item as a top-level item in the widget.

See also

insertTopLevelItem()

PySide6.QtWidgets.QTreeWidget.addTopLevelItems(items)#

Parameters:: items –

Appends the list of items as a top-level items in the widget.

See also

insertTopLevelItems()

PySide6.QtWidgets.QTreeWidget.clear()#

Clears the tree widget by removing all of its items and selections.

Note

Since each item is removed from the tree widget before being deleted, the return value of treeWidget() will be invalid when called from an item’s destructor.

PySide6.QtWidgets.QTreeWidget.closePersistentEditor(item[, column=0])#

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
column – int

Closes the persistent editor for the item in the given column.

This function has no effect if no persistent editor is open for this combination of item and column.

See also

openPersistentEditor() isPersistentEditorOpen()

PySide6.QtWidgets.QTreeWidget.collapseItem(item)#

Parameters:: item – PySide6.QtWidgets.QTreeWidgetItem

Closes the item. This causes the tree containing the item’s children to be collapsed.

See also

expandItem() currentItem() itemAt() topLevelItem()

PySide6.QtWidgets.QTreeWidget.columnCount()#

Return type:: int

See also

setColumnCount()

Getter of property columnCount .

PySide6.QtWidgets.QTreeWidget.currentColumn()#

Return type:: int

Returns the current column in the tree widget.

See also

setCurrentItem() columnCount()

PySide6.QtWidgets.QTreeWidget.currentItem()#

Return type:: PySide6.QtWidgets.QTreeWidgetItem

Returns the current item in the tree widget.

See also

setCurrentItem() currentItemChanged()

PySide6.QtWidgets.QTreeWidget.currentItemChanged(current, previous)#

Parameters:

current – PySide6.QtWidgets.QTreeWidgetItem
previous – PySide6.QtWidgets.QTreeWidgetItem

This signal is emitted when the current item changes. The current item is specified by current, and this replaces the previous current item.

See also

setCurrentItem()

PySide6.QtWidgets.QTreeWidget.dropMimeData(parent, index, data, action)#

Parameters:

parent – PySide6.QtWidgets.QTreeWidgetItem
index – int
data – PySide6.QtCore.QMimeData
action – DropAction

Return type:

bool

Handles the data supplied by a drag and drop operation that ended with the given action in the index in the given parent item.

The default implementation returns true if the drop was successfully handled by decoding the mime data and inserting it into the model; otherwise it returns false.

See also

supportedDropActions()

PySide6.QtWidgets.QTreeWidget.editItem(item[, column=0])#

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
column – int

Starts editing the item in the given column if it is editable.

PySide6.QtWidgets.QTreeWidget.expandItem(item)#

Parameters:: item – PySide6.QtWidgets.QTreeWidgetItem

Expands the item. This causes the tree containing the item’s children to be expanded.

See also

collapseItem() currentItem() itemAt() topLevelItem() itemExpanded()

PySide6.QtWidgets.QTreeWidget.findItems(text, flags[, column=0])#

Parameters:

text – str
flags – MatchFlags
column – int

Return type:

Returns a list of items that match the given text, using the given flags, in the given column.

PySide6.QtWidgets.QTreeWidget.headerItem()#

Return type:: PySide6.QtWidgets.QTreeWidgetItem

Returns the item used for the tree widget’s header.

See also

setHeaderItem()

PySide6.QtWidgets.QTreeWidget.indexFromItem(item[, column=0])#

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
column – int

Return type:

PySide6.QtCore.QModelIndex

Returns the QModelIndex associated with the given item in the given column.

Note

In Qt versions prior to 5.7, this function took a non-const item.

See also

itemFromIndex() topLevelItem()

PySide6.QtWidgets.QTreeWidget.indexOfTopLevelItem(item)#

Parameters:: item – PySide6.QtWidgets.QTreeWidgetItem
Return type:: int

Returns the index of the given top-level item, or -1 if the item cannot be found.

See also

sortItems() topLevelItemCount()

PySide6.QtWidgets.QTreeWidget.insertTopLevelItem(index, item)#

Parameters:

index – int
item – PySide6.QtWidgets.QTreeWidgetItem

Inserts the item at index in the top level in the view.

If the item has already been inserted somewhere else it won’t be inserted.

See also

addTopLevelItem() columnCount()

PySide6.QtWidgets.QTreeWidget.insertTopLevelItems(index, items)#

Parameters:

index – int
items –

Inserts the list of items at index in the top level in the view.

Items that have already been inserted somewhere else won’t be inserted.

See also

addTopLevelItems()

PySide6.QtWidgets.QTreeWidget.invisibleRootItem()#

Return type:: PySide6.QtWidgets.QTreeWidgetItem

Returns the tree widget’s invisible root item.

The invisible root item provides access to the tree widget’s top-level items through the QTreeWidgetItem API, making it possible to write functions that can treat top-level items and their children in a uniform way; for example, recursive functions.

PySide6.QtWidgets.QTreeWidget.isPersistentEditorOpen(item[, column=0])#

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
column – int

Return type:

bool

Returns whether a persistent editor is open for item item in column column.

See also

openPersistentEditor() closePersistentEditor()

PySide6.QtWidgets.QTreeWidget.itemAbove(item)#

Parameters:: item – PySide6.QtWidgets.QTreeWidgetItem
Return type:: PySide6.QtWidgets.QTreeWidgetItem

Returns the item above the given item.

PySide6.QtWidgets.QTreeWidget.itemActivated(item, column)#

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
column – int

This signal is emitted when the user activates an item by single- or double-clicking (depending on the platform, i.e. on the SH_ItemView_ActivateItemOnSingleClick style hint) or pressing a special key (e.g., Enter).

The specified item is the item that was clicked, or None if no item was clicked. The column is the item’s column that was clicked, or -1 if no item was clicked.

PySide6.QtWidgets.QTreeWidget.itemAt(p)#

Parameters:: p – PySide6.QtCore.QPoint
Return type:: PySide6.QtWidgets.QTreeWidgetItem

Returns a pointer to the item at the coordinates p. The coordinates are relative to the tree widget’s viewport() .

See also

visualItemRect()

PySide6.QtWidgets.QTreeWidget.itemAt(x, y)

Parameters:

x – int
y – int

Return type:

PySide6.QtWidgets.QTreeWidgetItem

This is an overloaded function.

Returns a pointer to the item at the coordinates (x, y). The coordinates are relative to the tree widget’s viewport() .

PySide6.QtWidgets.QTreeWidget.itemBelow(item)#

Parameters:: item – PySide6.QtWidgets.QTreeWidgetItem
Return type:: PySide6.QtWidgets.QTreeWidgetItem

Returns the item visually below the given item.

PySide6.QtWidgets.QTreeWidget.itemChanged(item, column)#

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
column – int

This signal is emitted when the contents of the column in the specified item changes.

PySide6.QtWidgets.QTreeWidget.itemClicked(item, column)#

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
column – int

This signal is emitted when the user clicks inside the widget.

The specified item is the item that was clicked. The column is the item’s column that was clicked. If no item was clicked, no signal will be emitted.

PySide6.QtWidgets.QTreeWidget.itemCollapsed(item)#

Parameters:: item – PySide6.QtWidgets.QTreeWidgetItem

This signal is emitted when the specified item is collapsed so that none of its children are displayed.

Note

This signal will not be emitted if an item changes its state when collapseAll() is invoked.

PySide6.QtWidgets.QTreeWidget.itemDoubleClicked(item, column)#

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
column – int

This signal is emitted when the user double clicks inside the widget.

The specified item is the item that was clicked, or None if no item was clicked. The column is the item’s column that was clicked. If no item was double clicked, no signal will be emitted.

PySide6.QtWidgets.QTreeWidget.itemEntered(item, column)#

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
column – int

This signal is emitted when the mouse cursor enters an item over the specified column. QTreeWidget mouse tracking needs to be enabled for this feature to work.

PySide6.QtWidgets.QTreeWidget.itemExpanded(item)#

Parameters:: item – PySide6.QtWidgets.QTreeWidgetItem

This signal is emitted when the specified item is expanded so that all of its children are displayed.

See also

isExpanded() itemCollapsed() expandItem()

PySide6.QtWidgets.QTreeWidget.itemFromIndex(index)#

Parameters:: index – PySide6.QtCore.QModelIndex
Return type:: PySide6.QtWidgets.QTreeWidgetItem

Returns a pointer to the QTreeWidgetItem associated with the given index.

See also

indexFromItem()

PySide6.QtWidgets.QTreeWidget.itemPressed(item, column)#

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
column – int

This signal is emitted when the user presses a mouse button inside the widget.

The specified item is the item that was clicked, or None if no item was clicked. The column is the item’s column that was clicked, or -1 if no item was clicked.

PySide6.QtWidgets.QTreeWidget.itemSelectionChanged()#

This signal is emitted when the selection changes in the tree widget. The current selection can be found with selectedItems() .

PySide6.QtWidgets.QTreeWidget.itemWidget(item, column)#

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
column – int

Return type:

PySide6.QtWidgets.QWidget

Returns the widget displayed in the cell specified by item and the given column.

See also

setItemWidget()

PySide6.QtWidgets.QTreeWidget.mimeData(items)#

Parameters:: items –
Return type:: PySide6.QtCore.QMimeData

Returns an object that contains a serialized description of the specified items. The format used to describe the items is obtained from the mimeTypes() function.

If the list of items is empty, None is returned rather than a serialized empty list.

PySide6.QtWidgets.QTreeWidget.mimeTypes()#

Return type:: list of strings

Returns a list of MIME types that can be used to describe a list of treewidget items.

See also

mimeData()

PySide6.QtWidgets.QTreeWidget.openPersistentEditor(item[, column=0])#

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
column – int

Opens a persistent editor for the item in the given column.

See also

closePersistentEditor() isPersistentEditorOpen()

PySide6.QtWidgets.QTreeWidget.removeItemWidget(item, column)#

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
column – int

Removes the widget set in the given item in the given column.

PySide6.QtWidgets.QTreeWidget.scrollToItem(item[, hint=QAbstractItemView.ScrollHint.EnsureVisible])#

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
hint – ScrollHint

Ensures that the item is visible, scrolling the view if necessary using the specified hint.

See also

currentItem() itemAt() topLevelItem()

PySide6.QtWidgets.QTreeWidget.selectedItems()#

Return type:

Returns a list of all selected non-hidden items.

See also

itemSelectionChanged()

PySide6.QtWidgets.QTreeWidget.setColumnCount(columns)#

Parameters:: columns – int

See also

columnCount()

Setter of property columnCount .

PySide6.QtWidgets.QTreeWidget.setCurrentItem(item)#

Parameters:: item – PySide6.QtWidgets.QTreeWidgetItem

Sets the current item in the tree widget.

Unless the selection mode is NoSelection , the item is also selected.

See also

currentItem() currentItemChanged()

PySide6.QtWidgets.QTreeWidget.setCurrentItem(item, column, command)

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
column – int
command – SelectionFlags

Sets the current item in the tree widget and the current column to column, using the given command.

See also

currentItem()

PySide6.QtWidgets.QTreeWidget.setCurrentItem(item, column)

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
column – int

Sets the current item in the tree widget and the current column to column.

See also

currentItem()

PySide6.QtWidgets.QTreeWidget.setHeaderItem(item)#

Parameters:: item – PySide6.QtWidgets.QTreeWidgetItem

Sets the header item for the tree widget. The label for each column in the header is supplied by the corresponding label in the item.

The tree widget takes ownership of the item.

See also

headerItem() setHeaderLabels()

PySide6.QtWidgets.QTreeWidget.setHeaderLabel(label)#

Parameters:: label – str

Same as setHeaderLabels ( QStringList (label)).

PySide6.QtWidgets.QTreeWidget.setHeaderLabels(labels)#

Parameters:: labels – list of strings

Adds a column in the header for each item in the labels list, and sets the label for each column.

Note that setHeaderLabels() won’t remove existing columns.

See also

setHeaderItem() setHeaderLabel()

PySide6.QtWidgets.QTreeWidget.setItemWidget(item, column, widget)#

Parameters:

item – PySide6.QtWidgets.QTreeWidgetItem
column – int
widget – PySide6.QtWidgets.QWidget

Sets the given widget to be displayed in the cell specified by the given item and column.

The given widget's autoFillBackground property must be set to true, otherwise the widget’s background will be transparent, showing both the model data and the tree widget item.

This function should only be used to display static content in the place of a tree widget item. If you want to display custom dynamic content or implement a custom editor widget, use QTreeView and subclass QStyledItemDelegate instead.

This function cannot be called before the item hierarchy has been set up, i.e., the QTreeWidgetItem that will hold widget must have been added to the view before widget is set.

Note

The tree takes ownership of the widget.

See also

itemWidget() Delegate Classes

PySide6.QtWidgets.QTreeWidget.sortColumn()#

Return type:: int

Returns the column used to sort the contents of the widget.

See also

sortItems()

PySide6.QtWidgets.QTreeWidget.sortItems(column, order)#

Parameters:

column – int
order – SortOrder

Sorts the items in the widget in the specified order by the values in the given column.

See also

sortColumn()

PySide6.QtWidgets.QTreeWidget.supportedDropActions()#

Return type:: DropActions

Returns the drop actions supported by this view.

See also

DropActions

PySide6.QtWidgets.QTreeWidget.takeTopLevelItem(index)#

Parameters:: index – int
Return type:: PySide6.QtWidgets.QTreeWidgetItem

Removes the top-level item at the given index in the tree and returns it, otherwise returns None;

See also

insertTopLevelItem() topLevelItem() topLevelItemCount()

PySide6.QtWidgets.QTreeWidget.topLevelItem(index)#

Parameters:: index – int
Return type:: PySide6.QtWidgets.QTreeWidgetItem

Returns the top level item at the given index, or None if the item does not exist.

See also

topLevelItemCount() insertTopLevelItem()

PySide6.QtWidgets.QTreeWidget.topLevelItemCount()#

Return type:: int

Getter of property topLevelItemCount .

PySide6.QtWidgets.QTreeWidget.visualItemRect(item)#

Parameters:: item – PySide6.QtWidgets.QTreeWidgetItem
Return type:: PySide6.QtCore.QRect

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

See also

itemAt()