QMenu

The QMenu class provides a menu widget for use in menu bars, context menus, and other popup menus. More

Inheritance diagram of PySide2.QtWidgets.QMenu

Synopsis

Functions

Signals

Static functions

  • def exec_ (actions, pos[, at=None[, parent=None]])

Detailed Description

../../_images/fusion-menu.png

A menu widget is a selection menu. It can be either a pull-down menu in a menu bar or a standalone context menu. Pull-down menus are shown by the menu bar when the user clicks on the respective item or presses the specified shortcut key. Use addMenu() to insert a menu into a menu bar. Context menus are usually invoked by some special keyboard key or by right-clicking. They can be executed either asynchronously with popup() or synchronously with exec() . Menus can also be invoked in response to button presses; these are just like context menus except for how they are invoked.

Actions

A menu consists of a list of action items. Actions are added with the addAction() , addActions() and insertAction() functions. An action is represented vertically and rendered by QStyle . In addition, actions can have a text label, an optional icon drawn on the very left side, and shortcut key sequence such as “Ctrl+X”.

The existing actions held by a menu can be found with actions() .

There are four kinds of action items: separators, actions that show a submenu, widgets, and actions that perform an action. Separators are inserted with addSeparator() , submenus with addMenu() , and all other items are considered action items.

When inserting action items you usually specify a receiver and a slot. The receiver will be notifed whenever the item is triggered() . In addition, QMenu provides two signals, triggered() and hovered() , which signal the QAction that was triggered from the menu.

You clear a menu with clear() and remove individual action items with removeAction() .

A QMenu can also provide a tear-off menu. A tear-off menu is a top-level window that contains a copy of the menu. This makes it possible for the user to “tear off” frequently used menus and position them in a convenient place on the screen. If you want this functionality for a particular menu, insert a tear-off handle with setTearOffEnabled() . When using tear-off menus, bear in mind that the concept isn’t typically used on Microsoft Windows so some users may not be familiar with it. Consider using a QToolBar instead.

Widgets can be inserted into menus with the QWidgetAction class. Instances of this class are used to hold widgets, and are inserted into menus with the addAction() overload that takes a QAction .

Conversely, actions can be added to widgets with the addAction() , addActions() and insertAction() functions.

Warning

To make QMenu visible on the screen, exec() or popup() should be used instead of show() .

QMenu on macOS with Qt Build Against Cocoa

QMenu can be inserted only once in a menu/menubar. Subsequent insertions will have no effect or will result in a disabled menu item.

See the Menus example for an example of how to use QMenuBar and QMenu in your application.

Important inherited functions: addAction() , removeAction() , clear() , addSeparator() , and addMenu() .

See also

QMenuBar GUI Design Handbook: Menu, Drop-Down and Pop-Up Application Example Menus Example

class QMenu([parent=None])

QMenu(title[, parent=None])

param parent

QWidget

param title

unicode

Constructs a menu with parent parent .

Although a popup menu is always a top-level widget, if a parent is passed the popup menu will be deleted when that parent is destroyed (as with any other QObject ).

PySide2.QtWidgets.QMenu.aboutToHide()
PySide2.QtWidgets.QMenu.aboutToShow()
PySide2.QtWidgets.QMenu.actionAt(arg__1)
Parameters

arg__1QPoint

Return type

QAction

Returns the item at pt ; returns None if there is no item there.

PySide2.QtWidgets.QMenu.actionGeometry(arg__1)
Parameters

arg__1QAction

Return type

QRect

Returns the geometry of action act .

PySide2.QtWidgets.QMenu.activeAction()
Return type

QAction

Returns the currently highlighted action, or None if no action is currently highlighted.

PySide2.QtWidgets.QMenu.addAction(text)
Parameters

text – unicode

Return type

QAction

This convenience function creates a new action with text . The function adds the newly created action to the menu’s list of actions, and returns it.

QMenu takes ownership of the returned QAction .

See also

addAction()

PySide2.QtWidgets.QMenu.addAction(text, receiver, member[, shortcut=0])
Parameters
  • text – unicode

  • receiverQObject

  • member – str

  • shortcutQKeySequence

Return type

QAction

PySide2.QtWidgets.QMenu.addAction(icon, text, receiver, member[, shortcut=0])
Parameters
  • iconQIcon

  • text – unicode

  • receiverQObject

  • member – str

  • shortcutQKeySequence

Return type

QAction

PySide2.QtWidgets.QMenu.addAction(icon, text)
Parameters
  • iconQIcon

  • text – unicode

Return type

QAction

This is an overloaded function.

This convenience function creates a new action with an icon and some text . The function adds the newly created action to the menu’s list of actions, and returns it.

QMenu takes ownership of the returned QAction .

See also

addAction()

PySide2.QtWidgets.QMenu.addAction(arg__1, arg__2[, arg__3=0])
Parameters
  • arg__1 – unicode

  • arg__2PyObject

  • arg__3QKeySequence

PySide2.QtWidgets.QMenu.addAction(arg__1, arg__2, arg__3[, arg__4=0])
Parameters
  • arg__1QIcon

  • arg__2 – unicode

  • arg__3PyObject

  • arg__4QKeySequence

PySide2.QtWidgets.QMenu.addMenu(menu)
Parameters

menuQMenu

Return type

QAction

This convenience function adds menu as a submenu to this menu. It returns menu ‘s menuAction() . This menu does not take ownership of menu .

PySide2.QtWidgets.QMenu.addMenu(icon, title)
Parameters
  • iconQIcon

  • title – unicode

Return type

QMenu

Appends a new QMenu with icon and title to the menu. The menu takes ownership of the menu. Returns the new menu.

PySide2.QtWidgets.QMenu.addMenu(title)
Parameters

title – unicode

Return type

QMenu

PySide2.QtWidgets.QMenu.addSection(icon, text)
Parameters
  • iconQIcon

  • text – unicode

Return type

QAction

This convenience function creates a new section action, i.e. an action with isSeparator() returning true but also having text and icon hints, and adds the new action to this menu’s list of actions. It returns the newly created action.

The rendering of the hints is style and platform dependent. Widget styles can use the text and icon information in the rendering for sections, or can choose to ignore them and render sections like simple separators.

QMenu takes ownership of the returned QAction .

See also

addAction()

PySide2.QtWidgets.QMenu.addSection(text)
Parameters

text – unicode

Return type

QAction

This convenience function creates a new section action, i.e. an action with isSeparator() returning true but also having text hint, and adds the new action to this menu’s list of actions. It returns the newly created action.

The rendering of the hint is style and platform dependent. Widget styles can use the text information in the rendering for sections, or can choose to ignore it and render sections like simple separators.

QMenu takes ownership of the returned QAction .

See also

addAction()

PySide2.QtWidgets.QMenu.addSeparator()
Return type

QAction

This convenience function creates a new separator action, i.e. an action with isSeparator() returning true, and adds the new action to this menu’s list of actions. It returns the newly created action.

QMenu takes ownership of the returned QAction .

See also

addAction()

PySide2.QtWidgets.QMenu.clear()

Removes all the menu’s actions. Actions owned by the menu and not shown in any other widget are deleted.

See also

removeAction()

PySide2.QtWidgets.QMenu.columnCount()
Return type

int

If a menu does not fit on the screen it lays itself out so that it does fit. It is style dependent what layout means (for example, on Windows it will use multiple columns).

This functions returns the number of columns necessary.

PySide2.QtWidgets.QMenu.defaultAction()
Return type

QAction

Returns the current default action.

PySide2.QtWidgets.QMenu.exec_()
Return type

QAction

Executes this menu synchronously.

This is equivalent to exec(pos()) .

This returns the triggered QAction in either the popup menu or one of its submenus, or None if no item was triggered (normally because the user pressed Esc).

In most situations you’ll want to specify the position yourself, for example, the current mouse position:

exec_(QCursor.pos())

or aligned to a widget:

exec_(somewidget.mapToGlobal(QPoint(0,0)))

or in reaction to a QMouseEvent *e:

exec_(e.globalPos())
static PySide2.QtWidgets.QMenu.exec_(actions, pos[, at=None[, parent=None]])
Parameters
Return type

QAction

This is an overloaded function.

Executes a menu synchronously.

The menu’s actions are specified by the list of actions . The menu will pop up so that the specified action, at , appears at global position pos . If at is not specified then the menu appears at position pos . parent is the menu’s parent widget; specifying the parent will provide context when pos alone is not enough to decide where the menu should go (e.g., with multiple desktops or when the parent is embedded in QGraphicsView ).

The function returns the triggered QAction in either the popup menu or one of its submenus, or None if no item was triggered (normally because the user pressed Esc).

This is equivalent to:

menu = QMenu()
at = actions[0] // Assumes actions is not empty
for a in actions:
    menu.addAction(a)
menu.exec_(pos, at)
PySide2.QtWidgets.QMenu.exec_(pos[, at=None])
Parameters
Return type

QAction

This is an overloaded function.

Executes this menu synchronously.

Pops up the menu so that the action action will be at the specified global position p . To translate a widget’s local coordinates into global coordinates, use mapToGlobal() .

This returns the triggered QAction in either the popup menu or one of its submenus, or None if no item was triggered (normally because the user pressed Esc).

Note that all signals are emitted as usual. If you connect a QAction to a slot and call the menu’s exec() , you get the result both via the signal-slot connection and in the return value of exec() .

Common usage is to position the menu at the current mouse position:

exec_(QCursor.pos())

or aligned to a widget:

exec_(somewidget.mapToGlobal(QPoint(0, 0)))

or in reaction to a QMouseEvent *e:

exec_(e.globalPos())

When positioning a menu with exec() or popup() , bear in mind that you cannot rely on the menu’s current size() . For performance reasons, the menu adapts its size only when necessary. So in many cases, the size before and after the show is different. Instead, use sizeHint() which calculates the proper size depending on the menu’s current contents.

PySide2.QtWidgets.QMenu.hideTearOffMenu()

This function will forcibly hide the torn off menu making it disappear from the user’s desktop.

PySide2.QtWidgets.QMenu.hovered(action)
Parameters

actionQAction

PySide2.QtWidgets.QMenu.icon()
Return type

QIcon

See also

setIcon()

PySide2.QtWidgets.QMenu.initStyleOption(option, action)
Parameters

Initialize option with the values from this menu and information from action . This method is useful for subclasses when they need a QStyleOptionMenuItem , but don’t want to fill in all the information themselves.

PySide2.QtWidgets.QMenu.insertMenu(before, menu)
Parameters
Return type

QAction

This convenience function inserts menu before action before and returns the menus menuAction() .

PySide2.QtWidgets.QMenu.insertSection(before, icon, text)
Parameters
  • beforeQAction

  • iconQIcon

  • text – unicode

Return type

QAction

This convenience function creates a new title action, i.e. an action with isSeparator() returning true but also having text and icon hints. The function inserts the newly created action into this menu’s list of actions before action before and returns it.

The rendering of the hints is style and platform dependent. Widget styles can use the text and icon information in the rendering for sections, or can choose to ignore them and render sections like simple separators.

QMenu takes ownership of the returned QAction .

PySide2.QtWidgets.QMenu.insertSection(before, text)
Parameters
  • beforeQAction

  • text – unicode

Return type

QAction

This convenience function creates a new title action, i.e. an action with isSeparator() returning true but also having text hint. The function inserts the newly created action into this menu’s list of actions before action before and returns it.

The rendering of the hint is style and platform dependent. Widget styles can use the text information in the rendering for sections, or can choose to ignore it and render sections like simple separators.

QMenu takes ownership of the returned QAction .

PySide2.QtWidgets.QMenu.insertSeparator(before)
Parameters

beforeQAction

Return type

QAction

This convenience function creates a new separator action, i.e. an action with isSeparator() returning true. The function inserts the newly created action into this menu’s list of actions before action before and returns it.

QMenu takes ownership of the returned QAction .

PySide2.QtWidgets.QMenu.isEmpty()
Return type

bool

Returns true if there are no visible actions inserted into the menu, false otherwise.

See also

actions()

PySide2.QtWidgets.QMenu.isTearOffEnabled()
Return type

bool

PySide2.QtWidgets.QMenu.isTearOffMenuVisible()
Return type

bool

When a menu is torn off a second menu is shown to display the menu contents in a new window. When the menu is in this mode and the menu is visible returns true ; otherwise false.

PySide2.QtWidgets.QMenu.menuAction()
Return type

QAction

Returns the action associated with this menu.

PySide2.QtWidgets.QMenu.popup(pos[, at=None])
Parameters

Displays the menu so that the action atAction will be at the specified global position p . To translate a widget’s local coordinates into global coordinates, use mapToGlobal() .

When positioning a menu with exec() or , bear in mind that you cannot rely on the menu’s current size() . For performance reasons, the menu adapts its size only when necessary, so in many cases, the size before and after the show is different. Instead, use sizeHint() which calculates the proper size depending on the menu’s current contents.

See also

mapToGlobal() exec()

PySide2.QtWidgets.QMenu.separatorsCollapsible()
Return type

bool

PySide2.QtWidgets.QMenu.setActiveAction(act)
Parameters

actQAction

Sets the currently highlighted action to act .

See also

activeAction()

PySide2.QtWidgets.QMenu.setDefaultAction(arg__1)
Parameters

arg__1QAction

This sets the default action to act . The default action may have a visual cue, depending on the current QStyle . A default action usually indicates what will happen by default when a drop occurs.

See also

defaultAction()

PySide2.QtWidgets.QMenu.setIcon(icon)
Parameters

iconQIcon

See also

icon()

PySide2.QtWidgets.QMenu.setSeparatorsCollapsible(collapse)
Parameters

collapsebool

PySide2.QtWidgets.QMenu.setTearOffEnabled(arg__1)
Parameters

arg__1bool

PySide2.QtWidgets.QMenu.setTitle(title)
Parameters

title – unicode

See also

title()

PySide2.QtWidgets.QMenu.setToolTipsVisible(visible)
Parameters

visiblebool

PySide2.QtWidgets.QMenu.showTearOffMenu(pos)
Parameters

posQPoint

This function will forcibly show the torn off menu making it appear on the user’s desktop at the specified global position pos .

PySide2.QtWidgets.QMenu.showTearOffMenu()

This is an overloaded function.

This function will forcibly show the torn off menu making it appear on the user’s desktop under the mouse currsor.

PySide2.QtWidgets.QMenu.title()
Return type

unicode

See also

setTitle()

PySide2.QtWidgets.QMenu.toolTipsVisible()
Return type

bool

PySide2.QtWidgets.QMenu.triggered(action)
Parameters

actionQAction