QMainWindow¶

The QMainWindow class provides a main application window. More…

Synopsis¶

Functions¶

def addDockWidget (area, dockwidget)
def addDockWidget (area, dockwidget, orientation)
def addToolBar (area, toolbar)
def addToolBar (title)
def addToolBar (toolbar)
def addToolBarBreak ([area=Qt.TopToolBarArea])
def centralWidget ()
def corner (corner)
def dockOptions ()
def dockWidgetArea (dockwidget)
def documentMode ()
def iconSize ()
def insertToolBar (before, toolbar)
def insertToolBarBreak (before)
def isAnimated ()
def isDockNestingEnabled ()
def isSeparator (pos)
def menuBar ()
def menuWidget ()
def removeDockWidget (dockwidget)
def removeToolBar (toolbar)
def removeToolBarBreak (before)
def resizeDocks (docks, sizes, orientation)
def restoreDockWidget (dockwidget)
def restoreState (state[, version=0])
def saveState ([version=0])
def setCentralWidget (widget)
def setCorner (corner, area)
def setDockOptions (options)
def setDocumentMode (enabled)
def setIconSize (iconSize)
def setMenuBar (menubar)
def setMenuWidget (menubar)
def setStatusBar (statusbar)
def setTabPosition (areas, tabPosition)
def setTabShape (tabShape)
def setToolButtonStyle (toolButtonStyle)
def splitDockWidget (after, dockwidget, orientation)
def statusBar ()
def tabPosition (area)
def tabShape ()
def tabifiedDockWidgets (dockwidget)
def tabifyDockWidget (first, second)
def takeCentralWidget ()
def toolBarArea (toolbar)
def toolBarBreak (toolbar)
def toolButtonStyle ()
def unifiedTitleAndToolBarOnMac ()

Detailed Description¶

Qt Main Window Framework¶

A main window provides a framework for building an application’s user interface. Qt has QMainWindow and its related classes for main window management. QMainWindow has its own layout to which you can add QToolBar s, QDockWidget s, a QMenuBar , and a QStatusBar . The layout has a center area that can be occupied by any kind of widget. You can see an image of the layout below.

Note

Creating a main window without a central widget is not supported. You must have a central widget even if it is just a placeholder.

Creating Main Window Components¶

A central widget will typically be a standard Qt widget such as a QTextEdit or a QGraphicsView . Custom widgets can also be used for advanced applications. You set the central widget with setCentralWidget().

Main windows have either a single (SDI) or multiple (MDI) document interface. You create MDI applications in Qt by using a QMdiArea as the central widget.

We will now examine each of the other widgets that can be added to a main window. We give examples on how to create and add them.

Creating Menus¶

Qt implements menus in QMenu and QMainWindow keeps them in a QMenuBar . QAction s are added to the menus, which display them as menu items.

You can add new menus to the main window’s menu bar by calling menuBar(), which returns the QMenuBar for the window, and then add a menu with addMenu() .

QMainWindow comes with a default menu bar, but you can also set one yourself with setMenuBar(). If you wish to implement a custom menu bar (i.e., not use the QMenuBar widget), you can set it with setMenuWidget().

An example of how to create menus follows:

def createMenus(self):

    fileMenu = menuBar().addMenu(tr("File"))
    fileMenu.addAction(newAct)
    fileMenu.addAction(openAct)
    fileMenu.addAction(saveAct)

The createPopupMenu() function creates popup menus when the main window receives context menu events. The default implementation generates a menu with the checkable actions from the dock widgets and toolbars. You can reimplement createPopupMenu() for a custom menu.

Creating Toolbars¶

Toolbars are implemented in the QToolBar class. You add a toolbar to a main window with addToolBar().

You control the initial position of toolbars by assigning them to a specific ToolBarArea . You can split an area by inserting a toolbar break - think of this as a line break in text editing - with addToolBarBreak() or insertToolBarBreak(). You can also restrict placement by the user with setAllowedAreas() and setMovable() .

The size of toolbar icons can be retrieved with iconSize(). The sizes are platform dependent; you can set a fixed size with setIconSize(). You can alter the appearance of all tool buttons in the toolbars with setToolButtonStyle().

An example of toolbar creation follows:

def createToolBars(self):

    fileToolBar = addToolBar(tr("File"))
    fileToolBar.addAction(newAct)

Creating Dock Widgets¶

Dock widgets are implemented in the QDockWidget class. A dock widget is a window that can be docked into the main window. You add dock widgets to a main window with addDockWidget().

There are four dock widget areas as given by the DockWidgetArea enum: left, right, top, and bottom. You can specify which dock widget area that should occupy the corners where the areas overlap with setCorner(). By default each area can only contain one row (vertical or horizontal) of dock widgets, but if you enable nesting with setDockNestingEnabled(), dock widgets can be added in either direction.

Two dock widgets may also be stacked on top of each other. A QTabBar is then used to select which of the widgets should be displayed.

We give an example of how to create and add dock widgets to a main window:

dockWidget = QDockWidget(tr("Dock Widget"), self)
dockWidget.setAllowedAreas(Qt.LeftDockWidgetArea |
                            Qt.RightDockWidgetArea)
dockWidget.setWidget(dockWidgetContents)
addDockWidget(Qt.LeftDockWidgetArea, dockWidget)

The Status Bar¶

You can set a status bar with setStatusBar(), but one is created the first time statusBar() (which returns the main window’s status bar) is called. See QStatusBar for information on how to use it.

Storing State¶

QMainWindow can store the state of its layout with saveState(); it can later be retrieved with restoreState(). It is the position and size (relative to the size of the main window) of the toolbars and dock widgets that are stored.

See also

QMenuBar QToolBar QStatusBar QDockWidget Qt Widgets - Application Example Dock Widgets Example MDI Example SDI Example Menus Example

class PySide6.QtWidgets.QMainWindow([parent=None[, flags=Qt.WindowFlags()]])¶

Parameters

flags – WindowFlags
parent – PySide6.QtWidgets.QWidget

Constructs a QMainWindow with the given parent and the specified widget flags.

QMainWindow sets the Window flag itself, and will hence always be created as a top-level widget.

PySide6.QtWidgets.QMainWindow.DockOption¶

This enum contains flags that specify the docking behavior of QMainWindow .

Constant

Description

QMainWindow.AnimatedDocks

Identical to the animated property.

QMainWindow.AllowNestedDocks

Identical to the dockNestingEnabled property.

QMainWindow.AllowTabbedDocks

The user can drop one dock widget “on top” of another. The two widgets are stacked and a tab bar appears for selecting which one is visible.

QMainWindow.ForceTabbedDocks

Each dock area contains a single stack of tabbed dock widgets. In other words, dock widgets cannot be placed next to each other in a dock area. If this option is set, has no effect.

QMainWindow.VerticalTabs

The two vertical dock areas on the sides of the main window show their tabs vertically. If this option is not set, all dock areas show their tabs at the bottom. Implies . See also setTabPosition() .

QMainWindow.GroupedDragging

When dragging the titlebar of a dock, all the tabs that are tabbed with it are going to be dragged. Implies . Does not work well if some QDockWidgets have restrictions in which area they are allowed. (This enum value was added in Qt 5.6.)

These options only control how dock widgets may be dropped in a QMainWindow . They do not re-arrange the dock widgets to conform with the specified options. For this reason they should be set before any dock widgets are added to the main window. Exceptions to this are the and options, which may be set at any time.

PySide6.QtWidgets.QMainWindow.addDockWidget(area, dockwidget)¶

Parameters

area – DockWidgetArea
dockwidget – PySide6.QtWidgets.QDockWidget

Adds the given dockwidget to the specified area.

PySide6.QtWidgets.QMainWindow.addDockWidget(area, dockwidget, orientation)

Parameters

area – DockWidgetArea
dockwidget – PySide6.QtWidgets.QDockWidget
orientation – Orientation

Adds dockwidget into the given area in the direction specified by the orientation.

PySide6.QtWidgets.QMainWindow.addToolBar(toolbar)¶

Parameters: toolbar – PySide6.QtWidgets.QToolBar

This is an overloaded function.

Equivalent of calling addToolBar ( TopToolBarArea , toolbar)

PySide6.QtWidgets.QMainWindow.addToolBar(area, toolbar)

Parameters

area – ToolBarArea
toolbar – PySide6.QtWidgets.QToolBar

Adds the toolbar into the specified area in this main window. The toolbar is placed at the end of the current tool bar block (i.e. line). If the main window already manages toolbar then it will only move the toolbar to area.

See also

insertToolBar() addToolBarBreak() insertToolBarBreak()

PySide6.QtWidgets.QMainWindow.addToolBar(title)

Parameters: title – str
Return type: PySide6.QtWidgets.QToolBar

This is an overloaded function.

Creates a QToolBar object, setting its window title to title, and inserts it into the top toolbar area.

See also

setWindowTitle()

PySide6.QtWidgets.QMainWindow.addToolBarBreak([area=Qt.TopToolBarArea])¶

Parameters: area – ToolBarArea

Adds a toolbar break to the given area after all the other objects that are present.

PySide6.QtWidgets.QMainWindow.centralWidget()¶

Return type: PySide6.QtWidgets.QWidget

Returns the central widget for the main window. This function returns zero if the central widget has not been set.

See also

setCentralWidget()

PySide6.QtWidgets.QMainWindow.corner(corner)¶

Parameters: corner – Corner
Return type: DockWidgetArea

Returns the dock widget area that occupies the specified corner.

See also

setCorner()

PySide6.QtWidgets.QMainWindow.createPopupMenu()¶

Return type: PySide6.QtWidgets.QMenu

Returns a popup menu containing checkable entries for the toolbars and dock widgets present in the main window. If there are no toolbars and dock widgets present, this function returns None.

By default, this function is called by the main window when the user activates a context menu, typically by right-clicking on a toolbar or a dock widget.

If you want to create a custom popup menu, reimplement this function and return a newly-created popup menu. Ownership of the popup menu is transferred to the caller.

See also

addDockWidget() addToolBar() menuBar()

PySide6.QtWidgets.QMainWindow.dockOptions()¶

Return type: DockOptions

This property holds the docking behavior of QMainWindow .

The default value is AnimatedDocks | AllowTabbedDocks .

PySide6.QtWidgets.QMainWindow.dockWidgetArea(dockwidget)¶

Parameters: dockwidget – PySide6.QtWidgets.QDockWidget
Return type: DockWidgetArea

Returns the DockWidgetArea for dockwidget. If dockwidget has not been added to the main window, this function returns Qt::NoDockWidgetArea.

See also

addDockWidget() splitDockWidget() DockWidgetArea

PySide6.QtWidgets.QMainWindow.documentMode()¶

Return type: bool

This property holds whether the tab bar for tabbed dockwidgets is set to document mode..

The default is false.

See also

documentMode

PySide6.QtWidgets.QMainWindow.iconSize()¶

Return type: PySide6.QtCore.QSize

This property holds size of toolbar icons in this mainwindow..

The default is the default tool bar icon size of the GUI style. Note that the icons used must be at least of this size as the icons are only scaled down.

PySide6.QtWidgets.QMainWindow.iconSizeChanged(iconSize)¶

Parameters: iconSize – PySide6.QtCore.QSize

PySide6.QtWidgets.QMainWindow.insertToolBar(before, toolbar)¶

Parameters

before – PySide6.QtWidgets.QToolBar
toolbar – PySide6.QtWidgets.QToolBar

Inserts the toolbar into the area occupied by the before toolbar so that it appears before it. For example, in normal left-to-right layout operation, this means that toolbar will appear to the left of the toolbar specified by before in a horizontal toolbar area.

See also

insertToolBarBreak() addToolBar() addToolBarBreak()

PySide6.QtWidgets.QMainWindow.insertToolBarBreak(before)¶

Parameters: before – PySide6.QtWidgets.QToolBar

Inserts a toolbar break before the toolbar specified by before.

PySide6.QtWidgets.QMainWindow.isAnimated()¶

Return type: bool

This property holds whether manipulating dock widgets and tool bars is animated.

When a dock widget or tool bar is dragged over the main window, the main window adjusts its contents to indicate where the dock widget or tool bar will be docked if it is dropped. Setting this property causes QMainWindow to move its contents in a smooth animation. Clearing this property causes the contents to snap into their new positions.

By default, this property is set. It may be cleared if the main window contains widgets which are slow at resizing or repainting themselves.

Setting this property is identical to setting the AnimatedDocks option using setDockOptions() .

PySide6.QtWidgets.QMainWindow.isDockNestingEnabled()¶

Return type: bool

This property holds whether docks can be nested.

If this property is false, dock areas can only contain a single row (horizontal or vertical) of dock widgets. If this property is true, the area occupied by a dock widget can be split in either direction to contain more dock widgets.

Dock nesting is only necessary in applications that contain a lot of dock widgets. It gives the user greater freedom in organizing their main window. However, dock nesting leads to more complex (and less intuitive) behavior when a dock widget is dragged over the main window, since there are more ways in which a dropped dock widget may be placed in the dock area.

Setting this property is identical to setting the AllowNestedDocks option using setDockOptions() .

PySide6.QtWidgets.QMainWindow.isSeparator(pos)¶

Parameters: pos – PySide6.QtCore.QPoint
Return type: bool

PySide6.QtWidgets.QMainWindow.menuBar()¶

Return type: PySide6.QtWidgets.QMenuBar

Returns the menu bar for the main window. This function creates and returns an empty menu bar if the menu bar does not exist.

If you want all windows in a Mac application to share one menu bar, don’t use this function to create it, because the menu bar created here will have this QMainWindow as its parent. Instead, you must create a menu bar that does not have a parent, which you can then share among all the Mac windows. Create a parent-less menu bar this way:

menuBar = QMenuBar(None)
See also

setMenuBar()

PySide6.QtWidgets.QMainWindow.menuWidget()¶

Return type: PySide6.QtWidgets.QWidget

Returns the menu bar for the main window. This function returns null if a menu bar hasn’t been constructed yet.

See also

setMenuWidget()

PySide6.QtWidgets.QMainWindow.removeDockWidget(dockwidget)¶

Parameters: dockwidget – PySide6.QtWidgets.QDockWidget

Removes the dockwidget from the main window layout and hides it. Note that the dockwidget is not deleted.

PySide6.QtWidgets.QMainWindow.removeToolBar(toolbar)¶

Parameters: toolbar – PySide6.QtWidgets.QToolBar

Removes the toolbar from the main window layout and hides it. Note that the toolbar is not deleted.

PySide6.QtWidgets.QMainWindow.removeToolBarBreak(before)¶

Parameters: before – PySide6.QtWidgets.QToolBar

Removes a toolbar break previously inserted before the toolbar specified by before.

PySide6.QtWidgets.QMainWindow.resizeDocks(docks, sizes, orientation)¶

Parameters

docks –
sizes –
orientation – Orientation

Resizes the dock widgets in the list docks to the corresponding size in pixels from the list sizes. If orientation is Horizontal , adjusts the width, otherwise adjusts the height of the dock widgets. The sizes will be adjusted such that the maximum and the minimum sizes are respected and the QMainWindow itself will not be resized. Any additional/missing space is distributed amongst the widgets according to the relative weight of the sizes.

Example:

resizeDocks({blueWidget, yellowWidget}, {20 , 40}, Qt.Horizontal)

If the blue and the yellow widget are nested on the same level they will be resized such that the yellowWidget is twice as big as the blueWidget

If some widgets are grouped in tabs, only one widget per group should be specified. Widgets not in the list might be changed to respect the constraints.

PySide6.QtWidgets.QMainWindow.restoreDockWidget(dockwidget)¶

Parameters: dockwidget – PySide6.QtWidgets.QDockWidget
Return type: bool

Restores the state of dockwidget if it is created after the call to restoreState() . Returns true if the state was restored; otherwise returns false.

See also

restoreState() saveState()

PySide6.QtWidgets.QMainWindow.restoreState(state[, version=0])¶

Parameters

state – PySide6.QtCore.QByteArray
version – int

Return type

bool

Restores the state of this mainwindow’s toolbars and dockwidgets. Also restores the corner settings too. The version number is compared with that stored in state. If they do not match, the mainwindow’s state is left unchanged, and this function returns false; otherwise, the state is restored, and this function returns true.

To restore geometry saved using QSettings , you can use code like this:

def readSettings(self):

    settings = QSettings("MyCompany", "MyApp")
    restoreGeometry(settings.value("myWidget/geometry").toByteArray())
    restoreState(settings.value("myWidget/windowState").toByteArray())

PySide6.QtWidgets.QMainWindow.saveState([version=0])¶

Parameters: version – int
Return type: PySide6.QtCore.QByteArray

Saves the current state of this mainwindow’s toolbars and dockwidgets. This includes the corner settings which can be set with setCorner() . The version number is stored as part of the data.

The objectName property is used to identify each QToolBar and QDockWidget . You should make sure that this property is unique for each QToolBar and QDockWidget you add to the QMainWindow

To restore the saved state, pass the return value and version number to restoreState() .

To save the geometry when the window closes, you can implement a close event like this:

def closeEvent(self, event):

    settings = QSettings("MyCompany", "MyApp")
    settings.setValue("geometry", saveGeometry())
    settings.setValue("windowState", saveState())
    QMainWindow.closeEvent(event)

PySide6.QtWidgets.QMainWindow.setAnimated(enabled)¶

Parameters: enabled – bool

This property holds whether manipulating dock widgets and tool bars is animated.

When a dock widget or tool bar is dragged over the main window, the main window adjusts its contents to indicate where the dock widget or tool bar will be docked if it is dropped. Setting this property causes QMainWindow to move its contents in a smooth animation. Clearing this property causes the contents to snap into their new positions.

By default, this property is set. It may be cleared if the main window contains widgets which are slow at resizing or repainting themselves.

Setting this property is identical to setting the AnimatedDocks option using setDockOptions() .

PySide6.QtWidgets.QMainWindow.setCentralWidget(widget)¶

Parameters: widget – PySide6.QtWidgets.QWidget

Sets the given widget to be the main window’s central widget.

Note: QMainWindow takes ownership of the widget pointer and deletes it at the appropriate time.

See also

centralWidget()

PySide6.QtWidgets.QMainWindow.setCorner(corner, area)¶

Parameters

corner – Corner
area – DockWidgetArea

Sets the given dock widget area to occupy the specified corner.

See also

corner()

PySide6.QtWidgets.QMainWindow.setDockNestingEnabled(enabled)¶

Parameters: enabled – bool

This property holds whether docks can be nested.

If this property is false, dock areas can only contain a single row (horizontal or vertical) of dock widgets. If this property is true, the area occupied by a dock widget can be split in either direction to contain more dock widgets.

Dock nesting is only necessary in applications that contain a lot of dock widgets. It gives the user greater freedom in organizing their main window. However, dock nesting leads to more complex (and less intuitive) behavior when a dock widget is dragged over the main window, since there are more ways in which a dropped dock widget may be placed in the dock area.

Setting this property is identical to setting the AllowNestedDocks option using setDockOptions() .

PySide6.QtWidgets.QMainWindow.setDockOptions(options)¶

Parameters: options – DockOptions

This property holds the docking behavior of QMainWindow .

The default value is AnimatedDocks | AllowTabbedDocks .

PySide6.QtWidgets.QMainWindow.setDocumentMode(enabled)¶

Parameters: enabled – bool

This property holds whether the tab bar for tabbed dockwidgets is set to document mode..

The default is false.

See also

documentMode

PySide6.QtWidgets.QMainWindow.setIconSize(iconSize)¶

Parameters: iconSize – PySide6.QtCore.QSize

This property holds size of toolbar icons in this mainwindow..

The default is the default tool bar icon size of the GUI style. Note that the icons used must be at least of this size as the icons are only scaled down.

PySide6.QtWidgets.QMainWindow.setMenuBar(menubar)¶

Parameters: menubar – PySide6.QtWidgets.QMenuBar

Sets the menu bar for the main window to menuBar.

Note: QMainWindow takes ownership of the menuBar pointer and deletes it at the appropriate time.

See also

menuBar()

PySide6.QtWidgets.QMainWindow.setMenuWidget(menubar)¶

Parameters: menubar – PySide6.QtWidgets.QWidget

Sets the menu bar for the main window to menuBar.

QMainWindow takes ownership of the menuBar pointer and deletes it at the appropriate time.

See also

menuWidget()

PySide6.QtWidgets.QMainWindow.setStatusBar(statusbar)¶

Parameters: statusbar – PySide6.QtWidgets.QStatusBar

Sets the status bar for the main window to statusbar.

Setting the status bar to None will remove it from the main window. Note that QMainWindow takes ownership of the statusbar pointer and deletes it at the appropriate time.

See also

statusBar()

PySide6.QtWidgets.QMainWindow.setTabPosition(areas, tabPosition)¶

Parameters

areas – DockWidgetAreas
tabPosition – TabPosition

Sets the tab position for the given dock widget areas to the specified tabPosition. By default, all dock areas show their tabs at the bottom.

Note

The VerticalTabs dock option overrides the tab positions set by this method.

See also

tabPosition() setTabShape()

PySide6.QtWidgets.QMainWindow.setTabShape(tabShape)¶

Parameters: tabShape – TabShape

This property holds the tab shape used for tabbed dock widgets..

The default is Rounded .

See also

setTabPosition()

PySide6.QtWidgets.QMainWindow.setToolButtonStyle(toolButtonStyle)¶

Parameters: toolButtonStyle – ToolButtonStyle

This property holds style of toolbar buttons in this mainwindow..

To have the style of toolbuttons follow the system settings, set this property to ToolButtonFollowStyle . On Unix, the user settings from the desktop environment will be used. On other platforms, ToolButtonFollowStyle means icon only.

The default is ToolButtonIconOnly .

PySide6.QtWidgets.QMainWindow.setUnifiedTitleAndToolBarOnMac(set)¶

Parameters: set – bool

This property holds whether the window uses the unified title and toolbar look on macOS.

Note that the Qt 5 implementation has several limitations compared to Qt 4:

Use in windows with OpenGL content is not supported. This includes QOpenGLWidget .

Using dockable or movable toolbars may result in painting errors and is not recommended

PySide6.QtWidgets.QMainWindow.splitDockWidget(after, dockwidget, orientation)¶

Parameters

after – PySide6.QtWidgets.QDockWidget
dockwidget – PySide6.QtWidgets.QDockWidget
orientation – Orientation

Splits the space covered by the first dock widget into two parts, moves the first dock widget into the first part, and moves the second dock widget into the second part.

The orientation specifies how the space is divided: A Horizontal split places the second dock widget to the right of the first; a Vertical split places the second dock widget below the first.

Note: if first is currently in a tabbed docked area, second will be added as a new tab, not as a neighbor of first. This is because a single tab can contain only one dock widget.

Note: The LayoutDirection influences the order of the dock widgets in the two parts of the divided area. When right-to-left layout direction is enabled, the placing of the dock widgets will be reversed.

See also

tabifyDockWidget() addDockWidget() removeDockWidget()

PySide6.QtWidgets.QMainWindow.statusBar()¶

Return type: PySide6.QtWidgets.QStatusBar

Returns the status bar for the main window. This function creates and returns an empty status bar if the status bar does not exist.

See also

setStatusBar()

PySide6.QtWidgets.QMainWindow.tabPosition(area)¶

Parameters: area – DockWidgetArea
Return type: TabPosition

Returns the tab position for area.

Note

The VerticalTabs dock option overrides the tab positions returned by this function.

See also

setTabPosition() tabShape()

PySide6.QtWidgets.QMainWindow.tabShape()¶

Return type: TabShape

This property holds the tab shape used for tabbed dock widgets..

The default is Rounded .

See also

setTabPosition()

PySide6.QtWidgets.QMainWindow.tabifiedDockWidgetActivated(dockWidget)¶

Parameters: dockWidget – PySide6.QtWidgets.QDockWidget

PySide6.QtWidgets.QMainWindow.tabifiedDockWidgets(dockwidget)¶

Parameters: dockwidget – PySide6.QtWidgets.QDockWidget
Return type

Returns the dock widgets that are tabified together with dockwidget.

See also

tabifyDockWidget()

PySide6.QtWidgets.QMainWindow.tabifyDockWidget(first, second)¶

Parameters

first – PySide6.QtWidgets.QDockWidget
second – PySide6.QtWidgets.QDockWidget

Moves second dock widget on top of first dock widget, creating a tabbed docked area in the main window.

See also

tabifiedDockWidgets()

PySide6.QtWidgets.QMainWindow.takeCentralWidget()¶

Return type: PySide6.QtWidgets.QWidget

Removes the central widget from this main window.

The ownership of the removed widget is passed to the caller.

PySide6.QtWidgets.QMainWindow.toolBarArea(toolbar)¶

Parameters: toolbar – PySide6.QtWidgets.QToolBar
Return type: ToolBarArea

Returns the ToolBarArea for toolbar. If toolbar has not been added to the main window, this function returns Qt::NoToolBarArea.

See also

addToolBar() addToolBarBreak() ToolBarArea

PySide6.QtWidgets.QMainWindow.toolBarBreak(toolbar)¶

Parameters: toolbar – PySide6.QtWidgets.QToolBar
Return type: bool

Returns whether there is a toolbar break before the toolbar.

See also

addToolBarBreak() insertToolBarBreak()

PySide6.QtWidgets.QMainWindow.toolButtonStyle()¶

Return type: ToolButtonStyle

This property holds style of toolbar buttons in this mainwindow..

To have the style of toolbuttons follow the system settings, set this property to ToolButtonFollowStyle . On Unix, the user settings from the desktop environment will be used. On other platforms, ToolButtonFollowStyle means icon only.

The default is ToolButtonIconOnly .

PySide6.QtWidgets.QMainWindow.toolButtonStyleChanged(toolButtonStyle)¶

Parameters: toolButtonStyle – ToolButtonStyle

PySide6.QtWidgets.QMainWindow.unifiedTitleAndToolBarOnMac()¶

Return type: bool

This property holds whether the window uses the unified title and toolbar look on macOS.

Note that the Qt 5 implementation has several limitations compared to Qt 4:

Use in windows with OpenGL content is not supported. This includes QOpenGLWidget .

Using dockable or movable toolbars may result in painting errors and is not recommended

Table of Contents

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QMainWindow¶

Synopsis¶

Functions¶

Virtual functions¶

Slots¶

Signals¶

Detailed Description¶

Qt Main Window Framework¶

Creating Main Window Components¶

Creating Menus¶

Creating Toolbars¶

Creating Dock Widgets¶

The Status Bar¶

Storing State¶

Constant	Description
QMainWindow.AnimatedDocks	Identical to the `animated` property.
QMainWindow.AllowNestedDocks	Identical to the `dockNestingEnabled` property.
QMainWindow.AllowTabbedDocks	The user can drop one dock widget “on top” of another. The two widgets are stacked and a tab bar appears for selecting which one is visible.
QMainWindow.ForceTabbedDocks	Each dock area contains a single stack of tabbed dock widgets. In other words, dock widgets cannot be placed next to each other in a dock area. If this option is set, has no effect.
QMainWindow.VerticalTabs	The two vertical dock areas on the sides of the main window show their tabs vertically. If this option is not set, all dock areas show their tabs at the bottom. Implies . See also `setTabPosition()` .
QMainWindow.GroupedDragging	When dragging the titlebar of a dock, all the tabs that are tabbed with it are going to be dragged. Implies . Does not work well if some QDockWidgets have restrictions in which area they are allowed. (This enum value was added in Qt 5.6.)