Qt 4.8
Public Slots | Signals | Public Functions | Protected Functions | Properties | List of all members
QGroupBox Class Reference

The QGroupBox widget provides a group box frame with a title. More...

#include <qgroupbox.h>

Inheritance diagram for QGroupBox:
QWidget QObject QPaintDevice

Public Slots

void setChecked (bool checked)
 
- Public Slots inherited from QWidget
bool close ()
 Closes this widget. More...
 
void hide ()
 Hides the widget. More...
 
void lower ()
 Lowers the widget to the bottom of the parent widget's stack. More...
 
void raise ()
 Raises this widget to the top of the parent widget's stack. More...
 
void repaint ()
 Repaints the widget directly by calling paintEvent() immediately, unless updates are disabled or the widget is hidden. More...
 
void setDisabled (bool)
 Disables widget input events if disable is true; otherwise enables input events. More...
 
void setEnabled (bool)
 
void setFocus ()
 Gives the keyboard input focus to this widget (or its focus proxy) if this widget or one of its parents is the active window. More...
 
void setHidden (bool hidden)
 Convenience function, equivalent to setVisible(!hidden). More...
 
QT_MOC_COMPAT void setShown (bool shown)
 Use setVisible(shown) instead. More...
 
void setStyleSheet (const QString &styleSheet)
 
virtual void setVisible (bool visible)
 
void setWindowModified (bool)
 
void setWindowTitle (const QString &)
 
void show ()
 Shows the widget and its child widgets. More...
 
void showFullScreen ()
 Shows the widget in full-screen mode. More...
 
void showMaximized ()
 Shows the widget maximized. More...
 
void showMinimized ()
 Shows the widget minimized, as an icon. More...
 
void showNormal ()
 Restores the widget after it has been maximized or minimized. More...
 
void update ()
 Updates the widget unless updates are disabled or the widget is hidden. More...
 
- Public Slots inherited from QObject
void deleteLater ()
 Schedules this object for deletion. More...
 

Signals

void clicked (bool checked=false)
 This signal is emitted when the check box is activated (i. More...
 
void toggled (bool)
 If the group box is checkable, this signal is emitted when the check box is toggled. More...
 
- Signals inherited from QWidget
void customContextMenuRequested (const QPoint &pos)
 This signal is emitted when the widget's contextMenuPolicy is Qt::CustomContextMenu, and the user has requested a context menu on the widget. More...
 
- Signals inherited from QObject
void destroyed (QObject *=0)
 This signal is emitted immediately before the object obj is destroyed, and can not be blocked. More...
 

Public Functions

Qt::Alignment alignment () const
 
bool isCheckable () const
 
bool isChecked () const
 
bool isFlat () const
 
QSize minimumSizeHint () const
 Reimplemented Function More...
 
 QGroupBox (QWidget *parent=0)
 Constructs a group box widget with the given parent but with no title. More...
 
 QGroupBox (const QString &title, QWidget *parent=0)
 Constructs a group box with the given title and parent. More...
 
void setAlignment (int alignment)
 
void setCheckable (bool checkable)
 
void setFlat (bool flat)
 
void setTitle (const QString &title)
 
QString title () const
 
 ~QGroupBox ()
 Destroys the group box. More...
 
- Public Functions inherited from QWidget
bool acceptDrops () const
 
QString accessibleDescription () const
 
QString accessibleName () const
 
QList< QAction * > actions () const
 Returns the (possibly empty) list of this widget's actions. More...
 
void activateWindow ()
 Sets the top-level widget containing this widget to be the active window. More...
 
void addAction (QAction *action)
 Appends the action action to this widget's list of actions. More...
 
void addActions (QList< QAction *> actions)
 Appends the actions actions to this widget's list of actions. More...
 
void adjustSize ()
 Adjusts the size of the widget to fit its contents. More...
 
bool autoFillBackground () const
 
QPalette::ColorRole backgroundRole () const
 Returns the background role of the widget. More...
 
QSize baseSize () const
 
QWidgetchildAt (int x, int y) const
 Returns the visible child widget at the position ({x}, {y}) in the widget's coordinate system. More...
 
QWidgetchildAt (const QPoint &p) const
 Returns the visible child widget at point p in the widget's own coordinate system. More...
 
QRect childrenRect () const
 
QRegion childrenRegion () const
 
void clearFocus ()
 Takes keyboard input focus from the widget. More...
 
void clearMask ()
 Removes any mask set by setMask(). More...
 
QMargins contentsMargins () const
 The contentsMargins function returns the widget's contents margins. More...
 
QRect contentsRect () const
 Returns the area inside the widget's margins. More...
 
Qt::ContextMenuPolicy contextMenuPolicy () const
 
void createWinId ()
 
QCursor cursor () const
 
int devType () const
 
WId effectiveWinId () const
 Returns the effective window system identifier of the widget, i. More...
 
void ensurePolished () const
 Ensures that the widget has been polished by QStyle (i.e., has a proper font and palette). More...
 
Qt::FocusPolicy focusPolicy () const
 
QWidgetfocusProxy () const
 Returns the focus proxy, or 0 if there is no focus proxy. More...
 
QWidgetfocusWidget () const
 Returns the last child of this widget that setFocus had been called on. More...
 
const QFontfont () const
 
QFontInfo fontInfo () const
 Returns the font info for the widget's current font. More...
 
QFontMetrics fontMetrics () const
 Returns the font metrics for the widget's current font. More...
 
QPalette::ColorRole foregroundRole () const
 Returns the foreground role. More...
 
QRect frameGeometry () const
 
QSize frameSize () const
 
const QRectgeometry () const
 
void getContentsMargins (int *left, int *top, int *right, int *bottom) const
 Returns the widget's contents margins for left, top, right, and bottom. More...
 
HDC getDC () const
 Returns the window system handle of the widget, for low-level access. More...
 
void grabGesture (Qt::GestureType type, Qt::GestureFlags flags=Qt::GestureFlags())
 Subscribes the widget to a given gesture with specific flags. More...
 
void grabKeyboard ()
 Grabs the keyboard input. More...
 
void grabMouse ()
 Grabs the mouse input. More...
 
void grabMouse (const QCursor &)
 
int grabShortcut (const QKeySequence &key, Qt::ShortcutContext context=Qt::WindowShortcut)
 Adds a shortcut to Qt's shortcut system that watches for the given key sequence in the given context. More...
 
QGraphicsEffectgraphicsEffect () const
 The graphicsEffect function returns a pointer to the widget's graphics effect. More...
 
QGraphicsProxyWidgetgraphicsProxyWidget () const
 Returns the proxy widget for the corresponding embedded widget in a graphics view; otherwise returns 0. More...
 
bool hasFocus () const
 
bool hasMouseTracking () const
 
int height () const
 
virtual int heightForWidth (int) const
 Returns the preferred height for this widget, given the width w. More...
 
QInputContextinputContext ()
 This function returns the QInputContext for this widget. More...
 
Qt::InputMethodHints inputMethodHints () const
 
virtual QVariant inputMethodQuery (Qt::InputMethodQuery) const
 This method is only relevant for input widgets. More...
 
void insertAction (QAction *before, QAction *action)
 Inserts the action action to this widget's list of actions, before the action before. More...
 
void insertActions (QAction *before, QList< QAction *> actions)
 Inserts the actions actions to this widget's list of actions, before the action before. More...
 
WId internalWinId () const
 Returns the window system identifier of the widget, or 0 if the widget is not created yet. More...
 
bool isActiveWindow () const
 
bool isAncestorOf (const QWidget *child) const
 Returns true if this widget is a parent, (or grandparent and so on to any level), of the given child, and both widgets are within the same window; otherwise returns false. More...
 
bool isEnabled () const
 
bool isEnabledTo (QWidget *) const
 Returns true if this widget would become enabled if ancestor is enabled; otherwise returns false. More...
 
bool isEnabledToTLW () const
 This function is deprecated. More...
 
bool isFullScreen () const
 
bool isHidden () const
 Returns true if the widget is hidden, otherwise returns false. More...
 
bool isLeftToRight () const
 
bool isMaximized () const
 
bool isMinimized () const
 
bool isModal () const
 
bool isRightToLeft () const
 
bool isTopLevel () const
 Use isWindow() instead. More...
 
bool isVisible () const
 
bool isVisibleTo (QWidget *) const
 Returns true if this widget would become visible if ancestor is shown; otherwise returns false. More...
 
bool isWindow () const
 Returns true if the widget is an independent window, otherwise returns false. More...
 
bool isWindowModified () const
 
QLayoutlayout () const
 Returns the layout manager that is installed on this widget, or 0 if no layout manager is installed. More...
 
Qt::LayoutDirection layoutDirection () const
 
QLocale locale () const
 
Qt::HANDLE macCGHandle () const
 Returns the CoreGraphics handle of the widget. More...
 
Qt::HANDLE macQDHandle () const
 Returns the QuickDraw handle of the widget. More...
 
QPoint mapFrom (QWidget *, const QPoint &) const
 Translates the widget coordinate pos from the coordinate system of parent to this widget's coordinate system. More...
 
QPoint mapFromGlobal (const QPoint &) const
 Translates the global screen coordinate pos to widget coordinates. More...
 
QPoint mapFromParent (const QPoint &) const
 Translates the parent widget coordinate pos to widget coordinates. More...
 
QPoint mapTo (QWidget *, const QPoint &) const
 Translates the widget coordinate pos to the coordinate system of parent. More...
 
QPoint mapToGlobal (const QPoint &) const
 Translates the widget coordinate pos to global screen coordinates. More...
 
QPoint mapToParent (const QPoint &) const
 Translates the widget coordinate pos to a coordinate in the parent widget. More...
 
QRegion mask () const
 Returns the mask currently set on a widget. More...
 
int maximumHeight () const
 
QSize maximumSize () const
 
int maximumWidth () const
 
int minimumHeight () const
 
QSize minimumSize () const
 
int minimumWidth () const
 
void move (int x, int y)
 This corresponds to move(QPoint(x, y)). More...
 
void move (const QPoint &)
 
QWidgetnativeParentWidget () const
 Returns the native parent for this widget, i. More...
 
QWidgetnextInFocusChain () const
 Returns the next widget in this widget's focus chain. More...
 
QRect normalGeometry () const
 
void overrideWindowFlags (Qt::WindowFlags type)
 Sets the window flags for the widget to flags, without telling the window system. More...
 
void overrideWindowState (Qt::WindowStates state)
 
QPaintEnginepaintEngine () const
 Returns the widget's paint engine. More...
 
const QPalettepalette () const
 
QWidgetparentWidget () const
 Returns the parent of this widget, or 0 if it does not have any parent widget. More...
 
QPoint pos () const
 
QWidgetpreviousInFocusChain () const
 The previousInFocusChain function returns the previous widget in this widget's focus chain. More...
 
 QWidget (QWidget *parent=0, Qt::WindowFlags f=0)
 Constructs a widget which is a child of parent, with widget flags set to f. More...
 
QRect rect () const
 
void releaseDC (HDC) const
 Releases the HDC hdc acquired by a previous call to getDC(). More...
 
void releaseKeyboard ()
 Releases the keyboard grab. More...
 
void releaseMouse ()
 Releases the mouse grab. More...
 
void releaseShortcut (int id)
 Removes the shortcut with the given id from Qt's shortcut system. More...
 
void removeAction (QAction *action)
 Removes the action action from this widget's list of actions. More...
 
void render (QPaintDevice *target, const QPoint &targetOffset=QPoint(), const QRegion &sourceRegion=QRegion(), RenderFlags renderFlags=RenderFlags(DrawWindowBackground|DrawChildren))
 Renders the sourceRegion of this widget into the target using renderFlags to determine how to render. More...
 
void render (QPainter *painter, const QPoint &targetOffset=QPoint(), const QRegion &sourceRegion=QRegion(), RenderFlags renderFlags=RenderFlags(DrawWindowBackground|DrawChildren))
 Renders the widget into the painter's QPainter::device(). More...
 
void repaint (int x, int y, int w, int h)
 This version repaints a rectangle (x, y, w, h) inside the widget. More...
 
void repaint (const QRect &)
 This version repaints a rectangle rect inside the widget. More...
 
void repaint (const QRegion &)
 This version repaints a region rgn inside the widget. More...
 
void resize (int w, int h)
 This corresponds to resize(QSize(w, h)). More...
 
void resize (const QSize &)
 
bool restoreGeometry (const QByteArray &geometry)
 Restores the geometry and state top-level widgets stored in the byte array geometry. More...
 
QByteArray saveGeometry () const
 Saves the current geometry and state for top-level widgets. More...
 
void scroll (int dx, int dy)
 Scrolls the widget including its children dx pixels to the right and dy downward. More...
 
void scroll (int dx, int dy, const QRect &)
 This version only scrolls r and does not move the children of the widget. More...
 
void setAcceptDrops (bool on)
 
void setAccessibleDescription (const QString &description)
 
void setAccessibleName (const QString &name)
 
void setAttribute (Qt::WidgetAttribute, bool on=true)
 Sets the attribute attribute on this widget if on is true; otherwise clears the attribute. More...
 
void setAutoFillBackground (bool enabled)
 
void setBackgroundRole (QPalette::ColorRole)
 Sets the background role of the widget to role. More...
 
void setBaseSize (const QSize &)
 
void setBaseSize (int basew, int baseh)
 This corresponds to setBaseSize(QSize(basew, baseh)). More...
 
void setContentsMargins (int left, int top, int right, int bottom)
 Sets the margins around the contents of the widget to have the sizes left, top, right, and bottom. More...
 
void setContentsMargins (const QMargins &margins)
 The setContentsMargins function sets the margins around the widget's contents. More...
 
void setContextMenuPolicy (Qt::ContextMenuPolicy policy)
 
void setCursor (const QCursor &)
 
void setFixedHeight (int h)
 Sets both the minimum and maximum heights of the widget to h without changing the widths. More...
 
void setFixedSize (const QSize &)
 Sets both the minimum and maximum sizes of the widget to s, thereby preventing it from ever growing or shrinking. More...
 
void setFixedSize (int w, int h)
 Sets the width of the widget to w and the height to h. More...
 
void setFixedWidth (int w)
 Sets both the minimum and maximum width of the widget to w without changing the heights. More...
 
void setFocus (Qt::FocusReason reason)
 Gives the keyboard input focus to this widget (or its focus proxy) if this widget or one of its parents is the active window. More...
 
void setFocusPolicy (Qt::FocusPolicy policy)
 
void setFocusProxy (QWidget *)
 Sets the widget's focus proxy to widget w. More...
 
void setFont (const QFont &)
 Use the single-argument overload instead. More...
 
void setForegroundRole (QPalette::ColorRole)
 Sets the foreground role of the widget to role. More...
 
void setGeometry (int x, int y, int w, int h)
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This corresponds to setGeometry(QRect(x, y, w, h)). More...
 
void setGeometry (const QRect &)
 
void setGraphicsEffect (QGraphicsEffect *effect)
 The setGraphicsEffect function is for setting the widget's graphics effect. More...
 
void setInputContext (QInputContext *)
 This function sets the input context context on this widget. More...
 
void setInputMethodHints (Qt::InputMethodHints hints)
 
void setLayout (QLayout *)
 Sets the layout manager for this widget to layout. More...
 
void setLayoutDirection (Qt::LayoutDirection direction)
 
void setLocale (const QLocale &locale)
 
void setMask (const QBitmap &)
 Causes only the pixels of the widget for which bitmap has a corresponding 1 bit to be visible. More...
 
void setMask (const QRegion &)
 Causes only the parts of the widget which overlap region to be visible. More...
 
void setMaximumHeight (int maxh)
 
void setMaximumSize (const QSize &)
 
void setMaximumSize (int maxw, int maxh)
 This function corresponds to setMaximumSize(QSize(maxw, maxh)). More...
 
void setMaximumWidth (int maxw)
 
void setMinimumHeight (int minh)
 
void setMinimumSize (const QSize &)
 
void setMinimumSize (int minw, int minh)
 This function corresponds to setMinimumSize(QSize(minw, minh)). More...
 
void setMinimumWidth (int minw)
 
void setMouseTracking (bool enable)
 
void setPalette (const QPalette &)
 Use the single-argument overload instead. More...
 
void setParent (QWidget *parent)
 Sets the parent of the widget to parent, and resets the window flags. More...
 
void setParent (QWidget *parent, Qt::WindowFlags f)
 This function also takes widget flags, f as an argument. More...
 
void setShortcutAutoRepeat (int id, bool enable=true)
 If enable is true, auto repeat of the shortcut with the given id is enabled; otherwise it is disabled. More...
 
void setShortcutEnabled (int id, bool enable=true)
 If enable is true, the shortcut with the given id is enabled; otherwise the shortcut is disabled. More...
 
void setSizeIncrement (const QSize &)
 
void setSizeIncrement (int w, int h)
 Sets the x (width) size increment to w and the y (height) size increment to h. More...
 
void setSizePolicy (QSizePolicy)
 
void setSizePolicy (QSizePolicy::Policy horizontal, QSizePolicy::Policy vertical)
 Sets the size policy of the widget to horizontal and vertical, with standard stretch and no height-for-width. More...
 
void setStatusTip (const QString &)
 
void setStyle (QStyle *)
 Sets the widget's GUI style to style. More...
 
void setToolTip (const QString &)
 
void setUpdatesEnabled (bool enable)
 
void setupUi (QWidget *widget)
 Sets up the user interface for the specified widget. More...
 
void setWhatsThis (const QString &)
 
void setWindowFilePath (const QString &filePath)
 
void setWindowFlags (Qt::WindowFlags type)
 
void setWindowIcon (const QIcon &icon)
 
void setWindowIconText (const QString &)
 
void setWindowModality (Qt::WindowModality windowModality)
 
void setWindowOpacity (qreal level)
 
void setWindowRole (const QString &)
 Sets the window's role to role. More...
 
void setWindowState (Qt::WindowStates state)
 Sets the window state to windowState. More...
 
void setWindowSurface (QWindowSurface *surface)
 Sets the window surface to be the surface specified. More...
 
QSize size () const
 
virtual QSize sizeHint () const
 
QSize sizeIncrement () const
 
QSizePolicy sizePolicy () const
 
void stackUnder (QWidget *)
 Places the widget under w in the parent widget's stack. More...
 
QString statusTip () const
 
QStylestyle () const
 
QString styleSheet () const
 
bool testAttribute (Qt::WidgetAttribute) const
 Returns true if attribute attribute is set on this widget; otherwise returns false. More...
 
QString toolTip () const
 
QWidgettopLevelWidget () const
 
bool underMouse () const
 Returns true if the widget is under the mouse cursor; otherwise returns false. More...
 
void ungrabGesture (Qt::GestureType type)
 Unsubscribes the widget from a given gesture type. More...
 
void unsetCursor ()
 
void unsetLayoutDirection ()
 
void unsetLocale ()
 
void update (int x, int y, int w, int h)
 This version updates a rectangle (x, y, w, h) inside the widget. More...
 
void update (const QRect &)
 This version updates a rectangle rect inside the widget. More...
 
void update (const QRegion &)
 This version repaints a region rgn inside the widget. More...
 
void updateGeometry ()
 Notifies the layout system that this widget has changed and may need to change geometry. More...
 
bool updatesEnabled () const
 
QRegion visibleRegion () const
 Returns the unobscured region where paint events can occur. More...
 
QString whatsThis () const
 
int width () const
 
QWidgetwindow () const
 Returns the window for this widget, i.e. More...
 
QString windowFilePath () const
 
Qt::WindowFlags windowFlags () const
 Window flags are a combination of a type (e. More...
 
QIcon windowIcon () const
 
QString windowIconText () const
 
Qt::WindowModality windowModality () const
 
qreal windowOpacity () const
 
QString windowRole () const
 Returns the window's role, or an empty string. More...
 
Qt::WindowStates windowState () const
 Returns the current window state. More...
 
QWindowSurfacewindowSurface () const
 Returns the QWindowSurface this widget will be drawn into. More...
 
QString windowTitle () const
 
Qt::WindowType windowType () const
 Returns the window type of this widget. More...
 
WId winId () const
 Returns the window system identifier of the widget. More...
 
int x () const
 
const QX11Infox11Info () const
 Returns information about the configuration of the X display used to display the widget. More...
 
Qt::HANDLE x11PictureHandle () const
 Returns the X11 Picture handle of the widget for XRender support. More...
 
int y () const
 
 ~QWidget ()
 Destroys the widget. More...
 
- Public Functions inherited from QObject
bool blockSignals (bool b)
 If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). More...
 
const QObjectListchildren () const
 Returns a list of child objects. More...
 
bool connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const
 
bool disconnect (const char *signal=0, const QObject *receiver=0, const char *member=0)
 
bool disconnect (const QObject *receiver, const char *member=0)
 
void dumpObjectInfo ()
 Dumps information about signal connections, etc. More...
 
void dumpObjectTree ()
 Dumps a tree of children to the debug output. More...
 
QList< QByteArraydynamicPropertyNames () const
 Returns the names of all properties that were dynamically added to the object using setProperty(). More...
 
virtual bool eventFilter (QObject *, QEvent *)
 Filters events if this object has been installed as an event filter for the watched object. More...
 
template<typename T >
findChild (const QString &aName=QString()) const
 Returns the child of this object that can be cast into type T and that is called name, or 0 if there is no such object. More...
 
template<typename T >
QList< T > findChildren (const QString &aName=QString()) const
 Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. More...
 
template<typename T >
QList< T > findChildren (const QRegExp &re) const
 
bool inherits (const char *classname) const
 Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false. More...
 
void installEventFilter (QObject *)
 Installs an event filter filterObj on this object. More...
 
bool isWidgetType () const
 Returns true if the object is a widget; otherwise returns false. More...
 
void killTimer (int id)
 Kills the timer with timer identifier, id. More...
 
virtual const QMetaObjectmetaObject () const
 Returns a pointer to the meta-object of this object. More...
 
void moveToThread (QThread *thread)
 Changes the thread affinity for this object and its children. More...
 
QString objectName () const
 
QObjectparent () const
 Returns a pointer to the parent object. More...
 
QVariant property (const char *name) const
 Returns the value of the object's name property. More...
 
Q_INVOKABLE QObject (QObject *parent=0)
 Constructs an object with parent object parent. More...
 
void removeEventFilter (QObject *)
 Removes an event filter object obj from this object. More...
 
void setObjectName (const QString &name)
 
void setParent (QObject *)
 Makes the object a child of parent. More...
 
bool setProperty (const char *name, const QVariant &value)
 Sets the value of the object's name property to value. More...
 
void setUserData (uint id, QObjectUserData *data)
 
bool signalsBlocked () const
 Returns true if signals are blocked; otherwise returns false. More...
 
int startTimer (int interval)
 Starts a timer and returns a timer identifier, or returns zero if it could not start a timer. More...
 
QThreadthread () const
 Returns the thread in which the object lives. More...
 
QObjectUserDatauserData (uint id) const
 
virtual ~QObject ()
 Destroys the object, deleting all its child objects. More...
 
- Public Functions inherited from QPaintDevice
int colorCount () const
 
int depth () const
 
int height () const
 
int heightMM () const
 
int logicalDpiX () const
 
int logicalDpiY () const
 
QT_DEPRECATED int numColors () const
 
bool paintingActive () const
 
int physicalDpiX () const
 
int physicalDpiY () const
 
int width () const
 
int widthMM () const
 
virtual ~QPaintDevice ()
 

Protected Functions

void changeEvent (QEvent *event)
 Reimplemented Function More...
 
void childEvent (QChildEvent *event)
 This event handler can be reimplemented in a subclass to receive child events. More...
 
bool event (QEvent *event)
 Reimplemented Function More...
 
void focusInEvent (QFocusEvent *event)
 Reimplemented Function More...
 
void initStyleOption (QStyleOptionGroupBox *option) const
 Initialize option with the values from this QGroupBox. More...
 
void mouseMoveEvent (QMouseEvent *event)
 Reimplemented Function More...
 
void mousePressEvent (QMouseEvent *event)
 Reimplemented Function More...
 
void mouseReleaseEvent (QMouseEvent *event)
 Reimplemented Function More...
 
void paintEvent (QPaintEvent *event)
 Reimplemented Function More...
 
void resizeEvent (QResizeEvent *event)
 Reimplemented Function More...
 
- Protected Functions inherited from QWidget
virtual void actionEvent (QActionEvent *)
 This event handler is called with the given event whenever the widget's actions are changed. More...
 
virtual void closeEvent (QCloseEvent *)
 This event handler is called with the given event when Qt receives a window close request for a top-level widget from the window system. More...
 
virtual void contextMenuEvent (QContextMenuEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive widget context menu events. More...
 
void create (WId=0, bool initializeWindow=true, bool destroyOldWindow=true)
 Creates a new widget window if window is 0, otherwise sets the widget's window to window. More...
 
void destroy (bool destroyWindow=true, bool destroySubWindows=true)
 Frees up window system resources. More...
 
virtual void dragEnterEvent (QDragEnterEvent *)
 This event handler is called when a drag is in progress and the mouse enters this widget. More...
 
virtual void dragLeaveEvent (QDragLeaveEvent *)
 This event handler is called when a drag is in progress and the mouse leaves this widget. More...
 
virtual void dragMoveEvent (QDragMoveEvent *)
 This event handler is called if a drag is in progress, and when any of the following conditions occur: the cursor enters this widget, the cursor moves within this widget, or a modifier key is pressed on the keyboard while this widget has the focus. More...
 
virtual void dropEvent (QDropEvent *)
 This event handler is called when the drag is dropped on this widget. More...
 
virtual void enabledChange (bool)
 
virtual void enterEvent (QEvent *)
 This event handler can be reimplemented in a subclass to receive widget enter events which are passed in the event parameter. More...
 
bool focusNextChild ()
 Finds a new widget to give the keyboard focus to, as appropriate for Tab, and returns true if it can find a new widget, or false if it can't. More...
 
virtual bool focusNextPrevChild (bool next)
 Finds a new widget to give the keyboard focus to, as appropriate for Tab and Shift+Tab, and returns true if it can find a new widget, or false if it can't. More...
 
virtual void focusOutEvent (QFocusEvent *)
 This event handler can be reimplemented in a subclass to receive keyboard focus events (focus lost) for the widget. More...
 
bool focusPreviousChild ()
 Finds a new widget to give the keyboard focus to, as appropriate for Shift+Tab, and returns true if it can find a new widget, or false if it can't. More...
 
virtual void fontChange (const QFont &)
 
virtual void hideEvent (QHideEvent *)
 This event handler can be reimplemented in a subclass to receive widget hide events. More...
 
virtual void inputMethodEvent (QInputMethodEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive Input Method composition events. More...
 
virtual void keyPressEvent (QKeyEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive key press events for the widget. More...
 
virtual void keyReleaseEvent (QKeyEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive key release events for the widget. More...
 
virtual void languageChange ()
 
virtual void leaveEvent (QEvent *)
 This event handler can be reimplemented in a subclass to receive widget leave events which are passed in the event parameter. More...
 
virtual bool macEvent (EventHandlerCallRef, EventRef)
 This special event handler can be reimplemented in a subclass to receive native Macintosh events. More...
 
int metric (PaintDeviceMetric) const
 Internal implementation of the virtual QPaintDevice::metric() function. More...
 
virtual void mouseDoubleClickEvent (QMouseEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive mouse double click events for the widget. More...
 
virtual void moveEvent (QMoveEvent *)
 This event handler can be reimplemented in a subclass to receive widget move events which are passed in the event parameter. More...
 
virtual void paletteChange (const QPalette &)
 
 QWidget (QWidgetPrivate &d, QWidget *parent, Qt::WindowFlags f)
 
virtual bool qwsEvent (QWSEvent *)
 This special event handler can be reimplemented in a subclass to receive native Qt for Embedded Linux events which are passed in the event parameter. More...
 
void resetInputContext ()
 This function can be called on the widget that currently has focus to reset the input method operating on it. More...
 
virtual void showEvent (QShowEvent *)
 This event handler can be reimplemented in a subclass to receive widget show events which are passed in the event parameter. More...
 
virtual void styleChange (QStyle &)
 
virtual void tabletEvent (QTabletEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive tablet events for the widget. More...
 
virtual void wheelEvent (QWheelEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive wheel events for the widget. More...
 
virtual void windowActivationChange (bool)
 
virtual bool winEvent (MSG *message, long *result)
 This special event handler can be reimplemented in a subclass to receive native Windows events which are passed in the message parameter. More...
 
virtual bool x11Event (XEvent *)
 This special event handler can be reimplemented in a subclass to receive native X11 events passed in the event parameter. More...
 
- Protected Functions inherited from QObject
virtual void connectNotify (const char *signal)
 This virtual function is called when something has been connected to signal in this object. More...
 
virtual void customEvent (QEvent *)
 This event handler can be reimplemented in a subclass to receive custom events. More...
 
virtual void disconnectNotify (const char *signal)
 This virtual function is called when something has been disconnected from signal in this object. More...
 
 QObject (QObjectPrivate &dd, QObject *parent=0)
 
int receivers (const char *signal) const
 Returns the number of receivers connected to the signal. More...
 
QObjectsender () const
 Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns 0. More...
 
int senderSignalIndex () const
 
virtual void timerEvent (QTimerEvent *)
 This event handler can be reimplemented in a subclass to receive timer events for the object. More...
 
- Protected Functions inherited from QPaintDevice
 QPaintDevice ()
 

Properties

Qt::Alignment alignment
 the alignment of the group box title. More...
 
bool checkable
 whether the group box has a checkbox in its title More...
 
bool checked
 whether the group box is checked More...
 
bool flat
 whether the group box is painted flat or has a frame More...
 
QString title
 the group box title text More...
 

Additional Inherited Members

- Public Types inherited from QWidget
enum  RenderFlag { DrawWindowBackground = 0x1, DrawChildren = 0x2, IgnoreMask = 0x4 }
 This enum describes how to render the widget when calling QWidget::render(). More...
 
- Public Types inherited from QPaintDevice
enum  PaintDeviceMetric {
  PdmWidth = 1, PdmHeight, PdmWidthMM, PdmHeightMM,
  PdmNumColors, PdmDepth, PdmDpiX, PdmDpiY,
  PdmPhysicalDpiX, PdmPhysicalDpiY
}
 
- Static Public Functions inherited from QWidget
static QWidgetfind (WId)
 Returns a pointer to the widget with window identifer/handle id. More...
 
static QWidgetkeyboardGrabber ()
 Returns the widget that is currently grabbing the keyboard input. More...
 
static QWidgetmouseGrabber ()
 Returns the widget that is currently grabbing the mouse input. More...
 
static void setTabOrder (QWidget *, QWidget *)
 Puts the second widget after the first widget in the focus order. More...
 
- Static Public Functions inherited from QObject
static bool connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection)
 Creates a connection of the given type from the signal in the sender object to the method in the receiver object. More...
 
static bool connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)
 
static bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member)
 Disconnects signal in object sender from method in object receiver. More...
 
static bool disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member)
 
static uint registerUserData ()
 
static QString tr (const char *sourceText, const char *comment=0, int n=-1)
 
static QString trUtf8 (const char *sourceText, const char *comment=0, int n=-1)
 
- Static Public Functions inherited from QPaintDevice
static QWSDisplayqwsDisplay ()
 
- Static Public Variables inherited from QObject
static const QMetaObject staticMetaObject
 This variable stores the meta-object for the class. More...
 
- Protected Slots inherited from QWidget
void updateMicroFocus ()
 Updates the widget's micro focus. More...
 
- Protected Variables inherited from QObject
QScopedPointer< QObjectDatad_ptr
 
- Protected Variables inherited from QPaintDevice
ushort painters
 
- Static Protected Variables inherited from QObject
static const QMetaObject staticQtMetaObject
 

Detailed Description

The QGroupBox widget provides a group box frame with a title.

A group box provides a frame, a title and a keyboard shortcut, and displays various other widgets inside itself. The title is on top, the keyboard shortcut moves keyboard focus to one of the group box's child widgets.

QGroupBox also lets you set the title (normally set in the constructor) and the title's alignment . Group boxes can be checkable ; child widgets in checkable group boxes are enabled or disabled depending on whether or not the group box is checked .

You can minimize the space consumption of a group box by enabling the flat property. In most styles, enabling this property results in the removal of the left, right and bottom edges of the frame.

QGroupBox doesn't automatically lay out the child widgets (which are often or QRadioButton but can be any widgets). The following example shows how we can set up a QGroupBox with a layout:

QGroupBox *groupBox = new QGroupBox(tr("Exclusive Radio Buttons"));
QRadioButton *radio1 = new QRadioButton(tr("&Radio button 1"));
QRadioButton *radio2 = new QRadioButton(tr("R&adio button 2"));
QRadioButton *radio3 = new QRadioButton(tr("Ra&dio button 3"));
radio1->setChecked(true);
QVBoxLayout *vbox = new QVBoxLayout;
vbox->addWidget(radio1);
vbox->addWidget(radio2);
vbox->addWidget(radio3);
vbox->addStretch(1);
groupBox->setLayout(vbox);
windowsxp-groupbox.png
Screenshot of a Windows XP style group box
macintosh-groupbox.png
Screenshot of a Macintosh style group box
plastique-groupbox.png
Screenshot of a Plastique style group box
A Windows XP Style Widget Gallery{Windows XP style} group box. A Macintosh Style Widget Gallery{Macintosh style} group box. A Plastique Style Widget Gallery{Plastique style} group box.
See also
QButtonGroup, {Group Box Example}

Definition at line 57 of file qgroupbox.h.

Constructors and Destructors

◆ QGroupBox() [1/2]

QGroupBox::QGroupBox ( QWidget parent = 0)
explicit

Constructs a group box widget with the given parent but with no title.

Definition at line 194 of file qgroupbox.cpp.

Referenced by mouseReleaseEvent().

195  : QWidget(*new QGroupBoxPrivate, parent, 0)
196 {
197  Q_D(QGroupBox);
198  d->init();
199 }
double d
Definition: qnumeric_p.h:62
#define Q_D(Class)
Definition: qglobal.h:2482
QWidget(QWidget *parent=0, Qt::WindowFlags f=0)
Constructs a widget which is a child of parent, with widget flags set to f.
Definition: qwidget.cpp:1189
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57

◆ QGroupBox() [2/2]

QGroupBox::QGroupBox ( const QString title,
QWidget parent = 0 
)
explicit

Constructs a group box with the given title and parent.

Definition at line 205 of file qgroupbox.cpp.

206  : QWidget(*new QGroupBoxPrivate, parent, 0)
207 {
208  Q_D(QGroupBox);
209  d->init();
210  setTitle(title);
211 }
double d
Definition: qnumeric_p.h:62
#define Q_D(Class)
Definition: qglobal.h:2482
QWidget(QWidget *parent=0, Qt::WindowFlags f=0)
Constructs a widget which is a child of parent, with widget flags set to f.
Definition: qwidget.cpp:1189
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57
void setTitle(const QString &title)
Definition: qgroupbox.cpp:239

◆ ~QGroupBox()

QGroupBox::~QGroupBox ( )

Destroys the group box.

Definition at line 217 of file qgroupbox.cpp.

218 {
219 }

Functions

◆ alignment()

Qt::Alignment QGroupBox::alignment ( ) const

Referenced by setAlignment(), and setTitle().

◆ changeEvent()

void QGroupBox::changeEvent ( QEvent event)
protectedvirtual

Reimplemented Function

Reimplemented from QWidget.

Definition at line 704 of file qgroupbox.cpp.

705 {
706  Q_D(QGroupBox);
707  if (ev->type() == QEvent::EnabledChange) {
708  if (d->checkable && isEnabled()) {
709  // we are being enabled - disable children
710  if (!d->checked)
711  d->_q_setChildrenEnabled(false);
712  }
713  } else if (ev->type() == QEvent::FontChange
714 #ifdef Q_WS_MAC
715  || ev->type() == QEvent::MacSizeChange
716 #endif
717  || ev->type() == QEvent::StyleChange) {
718  d->calculateFrame();
719  }
721 }
double d
Definition: qnumeric_p.h:62
#define Q_D(Class)
Definition: qglobal.h:2482
virtual void changeEvent(QEvent *)
This event handler can be reimplemented to handle state changes.
Definition: qwidget.cpp:9170
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57
bool isEnabled() const
Definition: qwidget.h:948

◆ childEvent()

void QGroupBox::childEvent ( QChildEvent )
protectedvirtual

This event handler can be reimplemented in a subclass to receive child events.

The event is passed in the event parameter.

QEvent::ChildAdded and QEvent::ChildRemoved events are sent to objects when children are added or removed. In both cases you can only rely on the child being a QObject, or if isWidgetType() returns true, a QWidget. (This is because, in the ChildAdded case, the child is not yet fully constructed, and in the ChildRemoved case it might have been destructed already).

QEvent::ChildPolished events are sent to widgets when children are polished, or when polished children are added. If you receive a child polished event, the child's construction is usually completed. However, this is not guaranteed, and multiple polish events may be delivered during the execution of a widget's constructor.

For every child widget, you receive one ChildAdded event, zero or more ChildPolished events, and one ChildRemoved event.

The ChildPolished event is omitted if a child is removed immediately after it is added. If a child is polished several times during construction and destruction, you may receive several child polished events for the same child, each time with a different virtual table.

See also
event()

Reimplemented from QObject.

Definition at line 410 of file qgroupbox.cpp.

411 {
412  Q_D(QGroupBox);
413  if (c->type() != QEvent::ChildAdded || !c->child()->isWidgetType())
414  return;
415  QWidget *w = (QWidget*)c->child();
416  if (d->checkable) {
417  if (d->checked) {
419  w->setEnabled(true);
420  } else {
421  if (w->isEnabled()) {
422  w->setEnabled(false);
424  }
425  }
426  }
427 }
double d
Definition: qnumeric_p.h:62
unsigned char c[8]
Definition: qnumeric_p.h:62
The QWidget class is the base class of all user interface objects.
Definition: qwidget.h:150
#define Q_D(Class)
Definition: qglobal.h:2482
bool testAttribute(Qt::WidgetAttribute) const
Returns true if attribute attribute is set on this widget; otherwise returns false.
Definition: qwidget.h:1041
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57
void setEnabled(bool)
Definition: qwidget.cpp:3447
bool isEnabled() const
Definition: qwidget.h:948
void setAttribute(Qt::WidgetAttribute, bool on=true)
Sets the attribute attribute on this widget if on is true; otherwise clears the attribute.
Definition: qwidget.cpp:11087

◆ clicked

void QGroupBox::clicked ( bool  checked = false)
signal

This signal is emitted when the check box is activated (i.

Since
4.2

e. pressed down then released while the mouse cursor is inside the button), or when the shortcut key is typed, Notably, this signal is not emitted if you call setChecked().

If the check box is checked checked is true; it is false if the check box is unchecked.

See also
checkable, toggled(), checked

◆ event()

bool QGroupBox::event ( QEvent e)
protectedvirtual

Reimplemented Function

em>Reimplemented Function

Reimplemented from QWidget.

Definition at line 340 of file qgroupbox.cpp.

◆ focusInEvent()

void QGroupBox::focusInEvent ( QFocusEvent event)
protectedvirtual

Reimplemented Function

Reimplemented from QWidget.

Definition at line 485 of file qgroupbox.cpp.

486 { // note no call to super
487  Q_D(QGroupBox);
488  if (focusPolicy() == Qt::NoFocus) {
489  d->_q_fixFocus(fe->reason());
490  } else {
492  }
493 }
double d
Definition: qnumeric_p.h:62
#define Q_D(Class)
Definition: qglobal.h:2482
Qt::FocusPolicy focusPolicy() const
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57
virtual void focusInEvent(QFocusEvent *)
This event handler can be reimplemented in a subclass to receive keyboard focus events (focus receive...
Definition: qwidget.cpp:9431

◆ initStyleOption()

void QGroupBox::initStyleOption ( QStyleOptionGroupBox option) const
protected

Initialize option with the values from this QGroupBox.

This method is useful for subclasses when they need a QStyleOptionGroupBox, but don't want to fill in all the information themselves.

See also
QStyleOption::initFrom()

Definition at line 94 of file qgroupbox.cpp.

Referenced by event(), minimumSizeHint(), mouseMoveEvent(), mousePressEvent(), mouseReleaseEvent(), and paintEvent().

95 {
96  if (!option)
97  return;
98 
99  Q_D(const QGroupBox);
100  option->initFrom(this);
101  option->text = d->title;
102  option->lineWidth = 1;
103  option->midLineWidth = 0;
104  option->textAlignment = Qt::Alignment(d->align);
105  option->activeSubControls |= d->pressedControl;
107 
108  if (d->hover)
109  option->state |= QStyle::State_MouseOver;
110  else
111  option->state &= ~QStyle::State_MouseOver;
112 
113  if (d->flat)
115 
116  if (d->checkable) {
118  option->state |= (d->checked ? QStyle::State_On : QStyle::State_Off);
119  if ((d->pressedControl == QStyle::SC_GroupBoxCheckBox
120  || d->pressedControl == QStyle::SC_GroupBoxLabel) && (d->hover || d->overCheckBox))
121  option->state |= QStyle::State_Sunken;
122  }
123 
124  if (!option->palette.isBrushSet(isEnabled() ? QPalette::Active :
127  option, this));
128 
129  if (!d->title.isEmpty())
131 }
The QColor class provides colors based on RGB, HSV or CMYK values.
Definition: qcolor.h:67
double d
Definition: qnumeric_p.h:62
QString text
the text of the group box
Definition: qstyleoption.h:841
QStyle::State state
the style flags that are used when drawing the control
Definition: qstyleoption.h:88
QStyleOptionFrameV2::FrameFeatures features
the features of the group box frame
Definition: qstyleoption.h:840
virtual int styleHint(StyleHint stylehint, const QStyleOption *opt=0, const QWidget *widget=0, QStyleHintReturn *returnData=0) const =0
Returns an integer representing the specified style hint for the given widget described by the provid...
QStyle::SubControls activeSubControls
This variable holds a bitwise OR of the sub-controls that are active for the complex control...
Definition: qstyleoption.h:694
Qt::Alignment textAlignment
the alignment of the group box title
Definition: qstyleoption.h:842
#define Q_D(Class)
Definition: qglobal.h:2482
QStyle * style() const
Definition: qwidget.cpp:2742
void initFrom(const QWidget *w)
Definition: qstyleoption.h:99
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57
bool isEnabled() const
Definition: qwidget.h:948
QPalette palette
the palette that should be used when painting the control
Definition: qstyleoption.h:92
int midLineWidth
the mid-line width for drawing the panel
Definition: qstyleoption.h:845
bool isBrushSet(ColorGroup cg, ColorRole cr) const
Returns true if the ColorGroup cg and ColorRole cr has been set previously on this palette; otherwise...
Definition: qpalette.cpp:944
int lineWidth
the line width for drawing the panel
Definition: qstyleoption.h:844
The QStyle class is an abstract base class that encapsulates the look and feel of a GUI...
Definition: qstyle.h:68
QColor textColor
the color of the group box title
Definition: qstyleoption.h:843
QStyle::SubControls subControls
This variable holds a bitwise OR of the sub-controls to be drawn for the complex control.
Definition: qstyleoption.h:693

◆ isCheckable()

bool QGroupBox::isCheckable ( ) const

Definition at line 604 of file qgroupbox.cpp.

Referenced by QAccessibleGroupBox::actionCount(), event(), and QAccessibleGroupBox::role().

605 {
606  Q_D(const QGroupBox);
607  return d->checkable;
608 }
double d
Definition: qnumeric_p.h:62
#define Q_D(Class)
Definition: qglobal.h:2482
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57

◆ isChecked()

bool QGroupBox::isChecked ( ) const

Definition at line 611 of file qgroupbox.cpp.

612 {
613  Q_D(const QGroupBox);
614  return d->checkable && d->checked;
615 }
double d
Definition: qnumeric_p.h:62
#define Q_D(Class)
Definition: qglobal.h:2482
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57

◆ isFlat()

bool QGroupBox::isFlat ( ) const

Definition at line 539 of file qgroupbox.cpp.

540 {
541  Q_D(const QGroupBox);
542  return d->flat;
543 }
double d
Definition: qnumeric_p.h:62
#define Q_D(Class)
Definition: qglobal.h:2482
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57

◆ minimumSizeHint()

QSize QGroupBox::minimumSizeHint ( ) const
virtual

Reimplemented Function

Reimplemented from QWidget.

Definition at line 499 of file qgroupbox.cpp.

500 {
501  Q_D(const QGroupBox);
502  QStyleOptionGroupBox option;
503  initStyleOption(&option);
504 
505  QFontMetrics metrics(fontMetrics());
506 
507  int baseWidth = metrics.width(d->title) + metrics.width(QLatin1Char(' '));
508  int baseHeight = metrics.height();
509  if (d->checkable) {
512  baseHeight = qMax(baseHeight, style()->pixelMetric(QStyle::PM_IndicatorHeight));
513  }
514 
515  QSize size = style()->sizeFromContents(QStyle::CT_GroupBox, &option, QSize(baseWidth, baseHeight), this);
516  return size.expandedTo(QWidget::minimumSizeHint());
517 }
double d
Definition: qnumeric_p.h:62
void initStyleOption(QStyleOptionGroupBox *option) const
Initialize option with the values from this QGroupBox.
Definition: qgroupbox.cpp:94
The QFontMetrics class provides font metrics information.
Definition: qfontmetrics.h:65
QSize size() const
virtual QSize minimumSizeHint() const
virtual int pixelMetric(PixelMetric metric, const QStyleOption *option=0, const QWidget *widget=0) const =0
Returns the value of the given pixel metric.
QSize expandedTo(const QSize &) const
Returns a size holding the maximum width and height of this size and the given otherSize.
Definition: qsize.h:187
#define Q_D(Class)
Definition: qglobal.h:2482
Q_DECL_CONSTEXPR const T & qMax(const T &a, const T &b)
Definition: qglobal.h:1217
QStyle * style() const
Definition: qwidget.cpp:2742
QFontMetrics fontMetrics() const
Returns the font metrics for the widget&#39;s current font.
Definition: qwidget.h:984
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57
virtual QSize sizeFromContents(ContentsType ct, const QStyleOption *opt, const QSize &contentsSize, const QWidget *w=0) const =0
Returns the size of the element described by the specified option and type, based on the provided con...
The QStyleOptionGroupBox class describes the parameters for drawing a group box.
Definition: qstyleoption.h:834
The QSize class defines the size of a two-dimensional object using integer point precision.
Definition: qsize.h:53
The QLatin1Char class provides an 8-bit ASCII/Latin-1 character.
Definition: qchar.h:55

◆ mouseMoveEvent()

void QGroupBox::mouseMoveEvent ( QMouseEvent event)
protectedvirtual

Reimplemented Function

Reimplemented from QWidget.

Definition at line 743 of file qgroupbox.cpp.

744 {
745  Q_D(QGroupBox);
747  initStyleOption(&box);
749  event->pos(), this);
750  bool oldOverCheckBox = d->overCheckBox;
751  d->overCheckBox = (pressed == QStyle::SC_GroupBoxCheckBox || pressed == QStyle::SC_GroupBoxLabel);
752  if (d->checkable && (d->pressedControl == QStyle::SC_GroupBoxCheckBox || d->pressedControl == QStyle::SC_GroupBoxLabel)
753  && (d->overCheckBox != oldOverCheckBox))
754  update(style()->subControlRect(QStyle::CC_GroupBox, &box, QStyle::SC_GroupBoxCheckBox, this));
755 }
double d
Definition: qnumeric_p.h:62
void initStyleOption(QStyleOptionGroupBox *option) const
Initialize option with the values from this QGroupBox.
Definition: qgroupbox.cpp:94
SubControl
This enum describes the available sub controls.
Definition: qstyle.h:402
#define Q_D(Class)
Definition: qglobal.h:2482
const QPoint & pos() const
Returns the position of the mouse cursor, relative to the widget that received the event...
Definition: qevent.h:95
QStyle * style() const
Definition: qwidget.cpp:2742
void update()
Updates the widget unless updates are disabled or the widget is hidden.
Definition: qwidget.cpp:10883
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57
The QStyleOptionGroupBox class describes the parameters for drawing a group box.
Definition: qstyleoption.h:834
virtual SubControl hitTestComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, const QPoint &pt, const QWidget *widget=0) const =0
Returns the sub control at the given position in the given complex control (with the style options sp...

◆ mousePressEvent()

void QGroupBox::mousePressEvent ( QMouseEvent event)
protectedvirtual

Reimplemented Function

Reimplemented from QWidget.

Definition at line 724 of file qgroupbox.cpp.

725 {
726  if (event->button() != Qt::LeftButton) {
727  event->ignore();
728  return;
729  }
730 
731  Q_D(QGroupBox);
733  initStyleOption(&box);
734  d->pressedControl = style()->hitTestComplexControl(QStyle::CC_GroupBox, &box,
735  event->pos(), this);
736  if (d->checkable && (d->pressedControl & (QStyle::SC_GroupBoxCheckBox | QStyle::SC_GroupBoxLabel))) {
737  d->overCheckBox = true;
738  update(style()->subControlRect(QStyle::CC_GroupBox, &box, QStyle::SC_GroupBoxCheckBox, this));
739  }
740 }
double d
Definition: qnumeric_p.h:62
void initStyleOption(QStyleOptionGroupBox *option) const
Initialize option with the values from this QGroupBox.
Definition: qgroupbox.cpp:94
#define Q_D(Class)
Definition: qglobal.h:2482
const QPoint & pos() const
Returns the position of the mouse cursor, relative to the widget that received the event...
Definition: qevent.h:95
QStyle * style() const
Definition: qwidget.cpp:2742
void update()
Updates the widget unless updates are disabled or the widget is hidden.
Definition: qwidget.cpp:10883
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57
Qt::MouseButton button() const
Returns the button that caused the event.
Definition: qevent.h:101
The QStyleOptionGroupBox class describes the parameters for drawing a group box.
Definition: qstyleoption.h:834
virtual SubControl hitTestComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, const QPoint &pt, const QWidget *widget=0) const =0
Returns the sub control at the given position in the given complex control (with the style options sp...

◆ mouseReleaseEvent()

void QGroupBox::mouseReleaseEvent ( QMouseEvent event)
protectedvirtual

Reimplemented Function

Reimplemented from QWidget.

Definition at line 758 of file qgroupbox.cpp.

759 {
760  if (event->button() != Qt::LeftButton) {
761  event->ignore();
762  return;
763  }
764 
765  Q_D(QGroupBox);
766  if (!d->overCheckBox) {
767  event->ignore();
768  return;
769  }
771  initStyleOption(&box);
773  event->pos(), this);
774  bool toggle = d->checkable && (released == QStyle::SC_GroupBoxLabel
775  || released == QStyle::SC_GroupBoxCheckBox);
776  d->pressedControl = QStyle::SC_None;
777  d->overCheckBox = false;
778  if (toggle)
779  d->click();
780  else if (d->checkable)
781  update(style()->subControlRect(QStyle::CC_GroupBox, &box, QStyle::SC_GroupBoxCheckBox, this));
782 }
double d
Definition: qnumeric_p.h:62
void initStyleOption(QStyleOptionGroupBox *option) const
Initialize option with the values from this QGroupBox.
Definition: qgroupbox.cpp:94
SubControl
This enum describes the available sub controls.
Definition: qstyle.h:402
#define Q_D(Class)
Definition: qglobal.h:2482
const QPoint & pos() const
Returns the position of the mouse cursor, relative to the widget that received the event...
Definition: qevent.h:95
QStyle * style() const
Definition: qwidget.cpp:2742
void update()
Updates the widget unless updates are disabled or the widget is hidden.
Definition: qwidget.cpp:10883
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57
Qt::MouseButton button() const
Returns the button that caused the event.
Definition: qevent.h:101
The QStyleOptionGroupBox class describes the parameters for drawing a group box.
Definition: qstyleoption.h:834
virtual SubControl hitTestComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, const QPoint &pt, const QWidget *widget=0) const =0
Returns the sub control at the given position in the given complex control (with the style options sp...

◆ paintEvent()

void QGroupBox::paintEvent ( QPaintEvent event)
protectedvirtual

Reimplemented Function

Reimplemented from QWidget.

Definition at line 331 of file qgroupbox.cpp.

332 {
333  QStylePainter paint(this);
334  QStyleOptionGroupBox option;
335  initStyleOption(&option);
336  paint.drawComplexControl(QStyle::CC_GroupBox, option);
337 }
void initStyleOption(QStyleOptionGroupBox *option) const
Initialize option with the values from this QGroupBox.
Definition: qgroupbox.cpp:94
The QStyleOptionGroupBox class describes the parameters for drawing a group box.
Definition: qstyleoption.h:834
The QStylePainter class is a convenience class for drawing QStyle elements inside a widget...
Definition: qstylepainter.h:55

◆ resizeEvent()

void QGroupBox::resizeEvent ( QResizeEvent event)
protectedvirtual

Reimplemented Function

Reimplemented from QWidget.

Definition at line 323 of file qgroupbox.cpp.

324 {
326 }
virtual void resizeEvent(QResizeEvent *)
This event handler can be reimplemented in a subclass to receive widget resize events which are passe...
Definition: qwidget.cpp:9587

◆ setAlignment()

void QGroupBox::setAlignment ( int  alignment)

Definition at line 313 of file qgroupbox.cpp.

314 {
315  Q_D(QGroupBox);
316  d->align = alignment;
317  updateGeometry();
318  update();
319 }
double d
Definition: qnumeric_p.h:62
Qt::Alignment alignment() const
#define Q_D(Class)
Definition: qglobal.h:2482
void update()
Updates the widget unless updates are disabled or the widget is hidden.
Definition: qwidget.cpp:10883
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57
void updateGeometry()
Notifies the layout system that this widget has changed and may need to change geometry.
Definition: qwidget.cpp:10372

◆ setCheckable()

void QGroupBox::setCheckable ( bool  checkable)

Definition at line 575 of file qgroupbox.cpp.

576 {
577  Q_D(QGroupBox);
578 
579  bool wasCheckable = d->checkable;
580  d->checkable = checkable;
581 
582  if (checkable) {
583  setChecked(true);
584  if (!wasCheckable) {
586  d->_q_setChildrenEnabled(true);
587  updateGeometry();
588  }
589  } else {
590  if (wasCheckable) {
592  d->_q_setChildrenEnabled(true);
593  updateGeometry();
594  }
595  d->_q_setChildrenEnabled(true);
596  }
597 
598  if (wasCheckable != checkable) {
599  d->calculateFrame();
600  update();
601  }
602 }
double d
Definition: qnumeric_p.h:62
void setChecked(bool checked)
Definition: qgroupbox.cpp:664
#define Q_D(Class)
Definition: qglobal.h:2482
void update()
Updates the widget unless updates are disabled or the widget is hidden.
Definition: qwidget.cpp:10883
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57
bool checkable
whether the group box has a checkbox in its title
Definition: qgroupbox.h:64
void updateGeometry()
Notifies the layout system that this widget has changed and may need to change geometry.
Definition: qwidget.cpp:10372
void setFocusPolicy(Qt::FocusPolicy policy)
Definition: qwidget.cpp:7631

◆ setChecked

void QGroupBox::setChecked ( bool  checked)
slot

Definition at line 664 of file qgroupbox.cpp.

Referenced by QAccessibleGroupBox::doAction(), and setCheckable().

665 {
666  Q_D(QGroupBox);
667  if (d->checkable && b != d->checked) {
668  update();
669  d->checked = b;
670  d->_q_setChildrenEnabled(b);
671 #ifndef QT_NO_ACCESSIBILITY
673 #endif
674  emit toggled(b);
675  }
676 }
double d
Definition: qnumeric_p.h:62
static void updateAccessibility(QObject *, int who, Event reason)
Notifies accessibility clients about a change in object&#39;s accessibility information.
#define Q_D(Class)
Definition: qglobal.h:2482
void update()
Updates the widget unless updates are disabled or the widget is hidden.
Definition: qwidget.cpp:10883
void toggled(bool)
If the group box is checkable, this signal is emitted when the check box is toggled.
#define emit
Definition: qobjectdefs.h:76
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57

◆ setFlat()

void QGroupBox::setFlat ( bool  flat)

Definition at line 545 of file qgroupbox.cpp.

546 {
547  Q_D(QGroupBox);
548  if (d->flat == b)
549  return;
550  d->flat = b;
551  updateGeometry();
552  update();
553 }
double d
Definition: qnumeric_p.h:62
#define Q_D(Class)
Definition: qglobal.h:2482
void update()
Updates the widget unless updates are disabled or the widget is hidden.
Definition: qwidget.cpp:10883
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57
void updateGeometry()
Notifies the layout system that this widget has changed and may need to change geometry.
Definition: qwidget.cpp:10372

◆ setTitle()

void QGroupBox::setTitle ( const QString title)

Definition at line 239 of file qgroupbox.cpp.

Referenced by mouseReleaseEvent(), and QGroupBox().

240 {
241  Q_D(QGroupBox);
242  if (d->title == title) // no change
243  return;
244  d->title = title;
245 #ifndef QT_NO_SHORTCUT
246  releaseShortcut(d->shortcutId);
247  d->shortcutId = grabShortcut(QKeySequence::mnemonic(title));
248 #endif
249  d->calculateFrame();
250 
251  update();
252  updateGeometry();
253 #ifndef QT_NO_ACCESSIBILITY
255 #endif
256 }
double d
Definition: qnumeric_p.h:62
QString title() const
static void updateAccessibility(QObject *, int who, Event reason)
Notifies accessibility clients about a change in object&#39;s accessibility information.
static QKeySequence mnemonic(const QString &text)
Returns the shortcut key sequence for the mnemonic in text, or an empty key sequence if no mnemonics ...
#define Q_D(Class)
Definition: qglobal.h:2482
void releaseShortcut(int id)
Removes the shortcut with the given id from Qt&#39;s shortcut system.
Definition: qwidget.cpp:11771
void update()
Updates the widget unless updates are disabled or the widget is hidden.
Definition: qwidget.cpp:10883
The QGroupBox widget provides a group box frame with a title.
Definition: qgroupbox.h:57
int grabShortcut(const QKeySequence &key, Qt::ShortcutContext context=Qt::WindowShortcut)
Adds a shortcut to Qt&#39;s shortcut system that watches for the given key sequence in the given context...
Definition: qwidget.cpp:11747
void updateGeometry()
Notifies the layout system that this widget has changed and may need to change geometry.
Definition: qwidget.cpp:10372

◆ title()

QString QGroupBox::title ( ) const

Referenced by mouseReleaseEvent(), and setTitle().

◆ toggled

void QGroupBox::toggled ( bool  on)
signal

If the group box is checkable, this signal is emitted when the check box is toggled.

on is true if the check box is checked; otherwise it is false.

See also
checkable

Referenced by setChecked().

Properties

◆ alignment

Qt::Alignment QGroupBox::alignment
private

the alignment of the group box title.

Most styles place the title at the top of the frame. The horizontal alignment of the title can be specified using single values from the following list:

  • Qt::AlignLeft aligns the title text with the left-hand side of the group box.
  • Qt::AlignRight aligns the title text with the right-hand side of the group box.
  • Qt::AlignHCenter aligns the title text with the horizontal center of the group box.

The default alignment is Qt::AlignLeft.

See also
Qt::Alignment

Definition at line 62 of file qgroupbox.h.

◆ checkable

QGroupBox::checkable
private

whether the group box has a checkbox in its title

If this property is true, the group box displays its title using a checkbox in place of an ordinary label. If the checkbox is checked, the group box's children are enabled; otherwise they are disabled and inaccessible.

By default, group boxes are not checkable.

If this property is enabled for a group box, it will also be initially checked to ensure that its contents are enabled.

See also
checked

Definition at line 64 of file qgroupbox.h.

Referenced by QGroupBoxPrivate::init(), and setCheckable().

◆ checked

QGroupBox::checked
private

whether the group box is checked

If the group box is checkable, it is displayed with a check box. If the check box is checked, the group box's children are enabled; otherwise the children are disabled and are inaccessible to the user.

By default, checkable group boxes are also checked.

See also
checkable

Definition at line 65 of file qgroupbox.h.

Referenced by QGroupBoxPrivate::init().

◆ flat

QGroupBox::flat
private

whether the group box is painted flat or has a frame

A group box usually consists of a surrounding frame with a title at the top. If this property is enabled, only the top part of the frame is drawn in most styles; otherwise the whole frame is drawn.

By default, this property is disabled; i.e. group boxes are not flat unless explicitly specified.

Note: In some styles, flat and non-flat group boxes have similar representations and may not be as distinguishable as they are in other styles.

See also
title

Definition at line 63 of file qgroupbox.h.

Referenced by QGroupBoxPrivate::init().

◆ title

QString QGroupBox::title
private

the group box title text

The group box title text will have a keyboard shortcut if the title contains an ampersand ('&') followed by a letter.

g->setTitle("&User information");

In the example above, Alt+U moves the keyboard focus to the group box. See the QShortcut documentation for details (to display an actual ampersand, use '&&').

There is no default title text.

See also
alignment

Definition at line 61 of file qgroupbox.h.

Referenced by buddyString(), and QAccessibleGroupBox::relationTo().


The documentation for this class was generated from the following files: