Qt 4.0: QToolBar Class Reference

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# QToolBar Class Reference
[QtGui module]

The QToolBar class provides a movable panel that contains a set of controls. More...

    #include <QToolBar>

Inherits QWidget.

- List of all members, including inherited members
- Qt 3 support members

### Properties

allowedAreas : Qt::ToolBarAreas iconSize : QSize movable : bool | orientation : Qt::Orientation toolButtonStyle : Qt::ToolButtonStyle

- 52 properties inherited from QWidget
- 1 property inherited from QObject

### Public Functions

- QToolBar ( const QString & title, QWidget * parent = 0 )
- QToolBar ( QWidget * parent = 0 )
- ~QToolBar ()
- QAction * actionAt ( const QPoint & p ) const
- QAction * actionAt ( int x, int y ) const
- QAction * addAction ( const QString & text )
- QAction * addAction ( const QIcon & icon, const QString & text )
- QAction * addAction ( const QString & text, const QObject * receiver, const char * member )
- QAction * addAction ( const QIcon & icon, const QString & text, const QObject * receiver, const char * member )
- QAction * addSeparator ()
- QAction * addWidget ( QWidget * widget )
- Qt::ToolBarAreas allowedAreas () const
- void clear ()
- QSize iconSize () const
- QAction * insertSeparator ( QAction * before )
- QAction * insertWidget ( QAction * before, QWidget * widget )
- bool isAreaAllowed ( Qt::ToolBarArea area ) const
- bool isMovable () const
- Qt::Orientation orientation () const
- void setAllowedAreas ( Qt::ToolBarAreas areas )
- void setMovable ( bool movable )
- void setOrientation ( Qt::Orientation orientation )
- QAction * toggleViewAction () const
- Qt::ToolButtonStyle toolButtonStyle () const

- 184 public functions inherited from QWidget
- 28 public functions inherited from QObject
- 10 public functions inherited from QPaintDevice

### Public Slots

- void setIconSize ( const QSize & iconSize )
- void setToolButtonStyle ( Qt::ToolButtonStyle toolButtonStyle )

- 17 public slots inherited from QWidget
- 1 public slot inherited from QObject

### Signals

- void actionTriggered ( QAction * action )
- void allowedAreasChanged ( Qt::ToolBarAreas allowedAreas )
- void iconSizeChanged ( const QSize & iconSize )
- void movableChanged ( bool movable )
- void orientationChanged ( Qt::Orientation orientation )
- void toolButtonStyleChanged ( Qt::ToolButtonStyle toolButtonStyle )

- 1 signal inherited from QWidget
- 1 signal inherited from QObject

### Additional Inherited Members

- 4 static public members inherited from QWidget
- 4 static public members inherited from QObject
- 39 protected functions inherited from QWidget
- 7 protected functions inherited from QObject

## Detailed Description

The QToolBar class provides a movable panel that contains a set of controls.

Toolbar buttons are added by adding actions, using addAction() or insertAction(). Groups of buttons can be separated using addSeparator() or insertSeparator(). If a toolbar button is not appropriate, a widget can be inserted instead using addWidget() or insertWidget(); examples of suitable widgets are QSpinBox, QDoubleSpinBox, and QComboBox. When a toolbar button is pressed it emits the actionTriggered() signal. Toolbars may only be added to QMainWindow and QMainWindow subclasses.

A toolbar can be fixed in place in a particular area (e.g. at the top of the window), or it can be movable (isMovable()) between toolbar areas; see allowedAreas() and isAreaAllowed().

When a toolbar is resized in such a way that it is too small to show all the items it contains, an extension button will appear as the last item in the toolbar. Pressing the extension button will pop up a menu containing the items that does not currently fit in the toolbar. Note that only action based items will be shown in the menu. If only non-action based items are to appear in the extension menu (e.g. a QSpinBox), the extension button will appear as usual, but it will be disabled to indicate that some items in the toolbar are currently not visible.

See also QToolButton.

## Property Documentation

### allowedAreas : Qt::ToolBarAreas

This property holds areas where the toolbar may be placed.

The default is Qt::AllToolBarAreas.

This property only makes sense if the toolbar is in a QMainWindow.

Access functions:

- Qt::ToolBarAreas allowedAreas () const
- void setAllowedAreas ( Qt::ToolBarAreas areas )

See also movable.

### iconSize : QSize

This property holds size of icons in the toolbar.

The default is Qt::AutomaticIconSize.

Access functions:

- QSize iconSize () const
- void setIconSize ( const QSize & iconSize )

### movable : bool

This property holds whether the user can move the toolbar within the toolbar area, or between toolbar areas.

By default, this property is true.

This property only makes sense if the toolbar is in a QMainWindow.

Access functions:

- bool isMovable () const
- void setMovable ( bool movable )

See also allowedAreas.

### orientation : Qt::Orientation

This property holds orientation of the toolbar.

The default is Qt::Horizontal.

The orientation is updated automatically when the toolbar is managed by QMainWindow.

Access functions:

- Qt::Orientation orientation () const
- void setOrientation ( Qt::Orientation orientation )

### toolButtonStyle : Qt::ToolButtonStyle

This property holds style of toolbar buttons.

The defaults is Qt::ToolButtonIconOnly.

Access functions:

- Qt::ToolButtonStyle toolButtonStyle () const
- void setToolButtonStyle ( Qt::ToolButtonStyle toolButtonStyle )

## Member Function Documentation

### QToolBar::QToolBar ( const QString & title, QWidget * parent = 0 )

Constructs a QToolBar with the given parent.

The window title is set to title. This title is used when the toolbar is floating as an independent window. It is also shown in the context menu provided by QMainWindow.

See also setWindowTitle().

### QToolBar::QToolBar ( QWidget * parent = 0 )

Constructs a QToolBar with the given parent.

### QToolBar::~QToolBar ()

Destroys the toolbar.

### QAction * QToolBar::actionAt ( const QPoint & p ) const

Returns the action at point p. This function returns zero if no action was found.

See also QWidget::childAt().

### QAction * QToolBar::actionAt ( int x, int y ) const

This is an overloaded member function, provided for convenience. It behaves essentially like the above function.

Returns the action at the point x, y. This function returns zero if no action was found.

### void QToolBar::actionTriggered ( QAction * action ) `[signal]`

This signal is emitted when a toolbar button is pressed. The parameter holds the toolbar button's associated action.

### QAction * QToolBar::addAction ( const QString & text )

Creates a new action with the given text. This action is added to the end of the toolbar.

### QAction * QToolBar::addAction ( const QIcon & icon, const QString & text )

This is an overloaded member function, provided for convenience. It behaves essentially like the above function.

Creates a new action with the given icon and text. This action is added to the end of the toolbar.

### QAction * QToolBar::addAction ( const QString & text, const QObject * receiver, const char * member )

This is an overloaded member function, provided for convenience. It behaves essentially like the above function.

Creates a new action with the given text. This action is added to the end of the toolbar. The action's triggered() signal is connected to member in receiver.

### QAction * QToolBar::addAction ( const QIcon & icon, const QString & text, const QObject * receiver, const char * member )

This is an overloaded member function, provided for convenience. It behaves essentially like the above function.

Creates a new action with the icon icon and text text. This action is added to the end of the toolbar. The action's triggered() signal is connected to member in receiver.

### QAction * QToolBar::addSeparator ()

Adds a separator to the end of the toolbar.

See also insertSeparator().

### QAction * QToolBar::addWidget ( QWidget * widget )

Adds the given widget to the toolbar as the toolbar's last item.

See also insertWidget().

### void QToolBar::allowedAreasChanged ( Qt::ToolBarAreas allowedAreas ) `[signal]`

This signal is emitted when the collection of allowed areas for the toolbar is changed. The new areas in which the toolbar can be positioned are specified by allowedAreas.

See also allowedAreas.

### void QToolBar::clear ()

Removes all actions from the toolbar.

See also removeAction().

### void QToolBar::iconSizeChanged ( const QSize & iconSize ) `[signal]`

This signal is emitted when the icon size is changed. The iconSize parameter holds the toolbar's new icon size.

See also iconSize and QMainWindow::iconSize.

### QAction * QToolBar::insertSeparator ( QAction * before )

Inserts a separator into the toolbar in front of the toolbar item associated with the before action.

See also addSeparator().

### QAction * QToolBar::insertWidget ( QAction * before, QWidget * widget )

Inserts the given widget in front of the toolbar item associated with the before action.

See also addWidget().

### bool QToolBar::isAreaAllowed ( Qt::ToolBarArea area ) const

Returns true if this toolbar is dockable in the given area; otherwise returns false.

### void QToolBar::movableChanged ( bool movable ) `[signal]`

This signal is emitted when the toolbar becomes movable or fixed. If the toolbar can be moved, movable is true; otherwise it is false.

See also movable.

### void QToolBar::orientationChanged ( Qt::Orientation orientation ) `[signal]`

This signal is emitted when the orientation of the toolbar changes. The new orientation is specified by the orientation given.

See also orientation.

### QAction * QToolBar::toggleViewAction () const

Returns a checkable action that can be used to show or hide this toolbar.

The action's text is set to the toolbar's window title.

See also QAction::text and QWidget::windowTitle.

### void QToolBar::toolButtonStyleChanged ( Qt::ToolButtonStyle toolButtonStyle ) `[signal]`

This signal is emitted when the tool button style is changed. The toolButtonStyle parameter holds the toolbar's new tool button style.

See also toolButtonStyle and QMainWindow::toolButtonStyle.