Qt 4.8
Public Types | Signals | Public Functions | Protected Functions | Properties | Friends | List of all members
QDockWidget Class Reference

The QDockWidget class provides a widget that can be docked inside a QMainWindow or floated as a top-level window on the desktop. More...

#include <qdockwidget.h>

Inheritance diagram for QDockWidget:
QWidget QObject QPaintDevice

Public Types

enum  DockWidgetFeature {
  DockWidgetClosable = 0x01, DockWidgetMovable = 0x02, DockWidgetFloatable = 0x04, DockWidgetVerticalTitleBar = 0x08,
  DockWidgetFeatureMask = 0x0f, AllDockWidgetFeatures = DockWidgetClosable|DockWidgetMovable|DockWidgetFloatable, NoDockWidgetFeatures = 0x00, Reserved = 0xff
}
 
- 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
}
 

Signals

void allowedAreasChanged (Qt::DockWidgetAreas allowedAreas)
 This signal is emitted when the allowedAreas property changes. More...
 
void dockLocationChanged (Qt::DockWidgetArea area)
 This signal is emitted when the dock widget is moved to another dock area, or is moved to a different location in its current dock area. More...
 
void featuresChanged (QDockWidget::DockWidgetFeatures features)
 This signal is emitted when the features property changes. More...
 
void topLevelChanged (bool topLevel)
 This signal is emitted when the floating property changes. More...
 
void visibilityChanged (bool visible)
 This signal is emitted when the dock widget becomes visible (or invisible). 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::DockWidgetAreas allowedAreas () const
 
DockWidgetFeatures features () const
 
bool isAreaAllowed (Qt::DockWidgetArea area) const
 Returns true if this dock widget can be placed in the given area; otherwise returns false. More...
 
bool isFloating () const
 
 QDockWidget (const QString &title, QWidget *parent=0, Qt::WindowFlags flags=0)
 Constructs a QDockWidget with parent parent and window flags flags. More...
 
 QDockWidget (QWidget *parent=0, Qt::WindowFlags flags=0)
 Constructs a QDockWidget with parent parent and window flags flags. More...
 
void setAllowedAreas (Qt::DockWidgetAreas areas)
 
void setFeatures (DockWidgetFeatures features)
 
void setFloating (bool floating)
 
void setTitleBarWidget (QWidget *widget)
 Sets an arbitrary widget as the dock widget's title bar. More...
 
void setWidget (QWidget *widget)
 Sets the widget for the dock widget to widget. More...
 
QWidgettitleBarWidget () const
 Returns the custom title bar widget set on the QDockWidget, or 0 if no custom title bar has been set. More...
 
QActiontoggleViewAction () const
 Returns a checkable action that can be used to show or close this dock widget. More...
 
QWidgetwidget () const
 Returns the widget for the dock widget. More...
 
 ~QDockWidget ()
 Destroys the dock widget. 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
 
virtual QSize minimumSizeHint () 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 closeEvent (QCloseEvent *event)
 Reimplemented Function More...
 
bool event (QEvent *event)
 Reimplemented Function More...
 
void initStyleOption (QStyleOptionDockWidget *option) const
 Initialize option with the values from this QDockWidget. More...
 
void paintEvent (QPaintEvent *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 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...
 
virtual void focusInEvent (QFocusEvent *)
 This event handler can be reimplemented in a subclass to receive keyboard focus events (focus received) for the widget. 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 mouseMoveEvent (QMouseEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive mouse move events for the widget. More...
 
virtual void mousePressEvent (QMouseEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive mouse press events for the widget. More...
 
virtual void mouseReleaseEvent (QMouseEvent *)
 This event handler, for event event, can be reimplemented in a subclass to receive mouse release 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 resizeEvent (QResizeEvent *)
 This event handler can be reimplemented in a subclass to receive widget resize events which are passed in the event parameter. 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 childEvent (QChildEvent *)
 This event handler can be reimplemented in a subclass to receive child events. More...
 
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::DockWidgetAreas allowedAreas
 areas where the dock widget may be placed More...
 
DockWidgetFeatures features
 whether the dock widget is movable, closable, and floatable More...
 
bool floating
 whether the dock widget is floating More...
 
QString windowTitle
 the dock widget title (caption) More...
 

Friends

class QDockAreaLayout
 
class QDockAreaLayoutInfo
 
class QDockWidgetItem
 
class QDockWidgetLayout
 
class QMainWindowLayout
 

Additional Inherited Members

- 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...
 
- 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 QDockWidget class provides a widget that can be docked inside a QMainWindow or floated as a top-level window on the desktop.

QDockWidget provides the concept of dock widgets, also know as tool palettes or utility windows. Dock windows are secondary windows placed in the {dock widget area} around the central widget in a QMainWindow.

mainwindow-docks.png

Dock windows can be moved inside their current area, moved into new areas and floated (e.g., undocked) by the end-user. The QDockWidget API allows the programmer to restrict the dock widgets ability to move, float and close, as well as the areas in which they can be placed.

Appearance

A QDockWidget consists of a title bar and the content area. The title bar displays the dock widgets window title, a float button and a close button. Depending on the state of the QDockWidget, the float and close buttons may be either disabled or not shown at all.

The visual appearance of the title bar and buttons is dependent on the style in use.

A QDockWidget acts as a wrapper for its child widget, set with setWidget(). Custom size hints, minimum and maximum sizes and size policies should be implemented in the child widget. QDockWidget will respect them, adjusting its own constraints to include the frame and title. Size constraints should not be set on the QDockWidget itself, because they change depending on whether it is docked; a docked QDockWidget has no frame and a smaller title bar.

See also
QMainWindow, {Dock Widgets Example}

Definition at line 60 of file qdockwidget.h.

Enumerations

◆ DockWidgetFeature

  • DockWidgetClosable The dock widget can be closed. On some systems the dock widget always has a close button when it's floating (for example on MacOS 10.5).
  • DockWidgetMovable The dock widget can be moved between docks by the user.
  • DockWidgetFloatable The dock widget can be detached from the main window, and floated as an independent window.
  • DockWidgetVerticalTitleBar The dock widget displays a vertical title bar on its left side. This can be used to increase the amount of vertical space in a QMainWindow.
  • AllDockWidgetFeatures (Deprecated) The dock widget can be closed, moved, and floated. Since new features might be added in future releases, the look and behavior of dock widgets might change if you use this flag. Please specify individual flags instead.
  • NoDockWidgetFeatures The dock widget cannot be closed, moved, or floated.
  • DockWidgetFeatureMask
  • Reserved
Enumerator
DockWidgetClosable 
DockWidgetMovable 
DockWidgetFloatable 
DockWidgetVerticalTitleBar 
DockWidgetFeatureMask 
AllDockWidgetFeatures 
NoDockWidgetFeatures 
Reserved 

Definition at line 78 of file qdockwidget.h.

Constructors and Destructors

◆ QDockWidget() [1/2]

QDockWidget::QDockWidget ( const QString title,
QWidget parent = 0,
Qt::WindowFlags  flags = 0 
)
explicit

Constructs a QDockWidget with parent parent and window flags flags.

The dock widget will be placed in the left dock widget area.

The window title is set to title. This title is used when the QDockWidget is docked and undocked. It is also used in the context menu provided by QMainWindow.

See also
setWindowTitle()

Definition at line 1189 of file qdockwidget.cpp.

1190  : QWidget(*new QDockWidgetPrivate, parent, flags)
1191 {
1192  Q_D(QDockWidget);
1193  d->init();
1194  setWindowTitle(title);
1195 }
double d
Definition: qnumeric_p.h:62
The QDockWidget class provides a widget that can be docked inside a QMainWindow or floated as a top-l...
Definition: qdockwidget.h:60
#define Q_D(Class)
Definition: qglobal.h:2482
void setWindowTitle(const QString &)
Definition: qwidget.cpp:6312
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

◆ QDockWidget() [2/2]

QDockWidget::QDockWidget ( QWidget parent = 0,
Qt::WindowFlags  flags = 0 
)
explicit

Constructs a QDockWidget with parent parent and window flags flags.

The dock widget will be placed in the left dock widget area.

Definition at line 1171 of file qdockwidget.cpp.

1172  : QWidget(*new QDockWidgetPrivate, parent, flags)
1173 {
1174  Q_D(QDockWidget);
1175  d->init();
1176 }
double d
Definition: qnumeric_p.h:62
The QDockWidget class provides a widget that can be docked inside a QMainWindow or floated as a top-l...
Definition: qdockwidget.h:60
#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

◆ ~QDockWidget()

QDockWidget::~QDockWidget ( )

Destroys the dock widget.

Definition at line 1200 of file qdockwidget.cpp.

1201 { }

Functions

◆ allowedAreas()

Qt::DockWidgetAreas QDockWidget::allowedAreas ( ) const

Referenced by setAllowedAreas().

◆ allowedAreasChanged

void QDockWidget::allowedAreasChanged ( Qt::DockWidgetAreas  allowedAreas)
signal

This signal is emitted when the allowedAreas property changes.

The allowedAreas parameter gives the new value of the property.

Referenced by setAllowedAreas().

◆ changeEvent()

void QDockWidget::changeEvent ( QEvent event)
protectedvirtual

Reimplemented Function

Reimplemented from QWidget.

Definition at line 1348 of file qdockwidget.cpp.

1349 {
1350  Q_D(QDockWidget);
1352 
1353  switch (event->type()) {
1356  update(layout->titleArea());
1357 #ifndef QT_NO_ACTION
1358  d->fixedWindowTitle = qt_setWindowTitle_helperHelper(windowTitle(), this);
1359  d->toggleViewAction->setText(d->fixedWindowTitle);
1360 #endif
1361 #ifndef QT_NO_TABBAR
1362  {
1364  if (QMainWindowLayout *winLayout = qt_mainwindow_layout(win)) {
1365  if (QDockAreaLayoutInfo *info = winLayout->layoutState.dockAreaLayout.info(this))
1366  info->updateTabBar();
1367  }
1368  }
1369 #endif // QT_NO_TABBAR
1370  break;
1371  default:
1372  break;
1373  }
1374  QWidget::changeEvent(event);
1375 }
double d
Definition: qnumeric_p.h:62
QWidget * parentWidget() const
Returns the parent of this widget, or 0 if it does not have any parent widget.
Definition: qwidget.h:1035
static mach_timebase_info_data_t info
The QDockWidget class provides a widget that can be docked inside a QMainWindow or floated as a top-l...
Definition: qdockwidget.h:60
T * qobject_cast(QObject *object)
Definition: qobject.h:375
#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
QString qt_setWindowTitle_helperHelper(const QString &, const QWidget *)
Returns a modified window title with the [*] place holder replaced according to the rules described i...
Definition: qwidget.cpp:6240
virtual void changeEvent(QEvent *)
This event handler can be reimplemented to handle state changes.
Definition: qwidget.cpp:9170
QString windowTitle() const
QRect titleArea() const
The QMainWindow class provides a main application window.
Definition: qmainwindow.h:63
QLayout * layout() const
Returns the layout manager that is installed on this widget, or 0 if no layout manager is installed...
Definition: qwidget.cpp:10073
QMainWindowLayout * qt_mainwindow_layout(const QMainWindow *window)
Type type() const
Returns the event type.
Definition: qcoreevent.h:303

◆ closeEvent()

void QDockWidget::closeEvent ( QCloseEvent event)
protectedvirtual

Reimplemented Function

Reimplemented from QWidget.

Definition at line 1378 of file qdockwidget.cpp.

1379 {
1380  Q_D(QDockWidget);
1381  if (d->state)
1382  d->endDrag(true);
1383  QWidget::closeEvent(event);
1384 }
double d
Definition: qnumeric_p.h:62
The QDockWidget class provides a widget that can be docked inside a QMainWindow or floated as a top-l...
Definition: qdockwidget.h:60
#define Q_D(Class)
Definition: qglobal.h:2482
virtual void closeEvent(QCloseEvent *)
This event handler is called with the given event when Qt receives a window close request for a top-l...
Definition: qwidget.cpp:9626

◆ dockLocationChanged

void QDockWidget::dockLocationChanged ( Qt::DockWidgetArea  area)
signal

This signal is emitted when the dock widget is moved to another dock area, or is moved to a different location in its current dock area.

Since
4.3

This happens when the dock widget is moved programmatically or is dragged to a new location by the user.

Referenced by QMainWindowLayout::addDockWidget(), QMainWindowLayout::restoreDockWidget(), QDockAreaLayoutInfo::restoreState(), QMainWindowLayout::splitDockWidget(), and QMainWindowLayout::tabifyDockWidget().

◆ event()

bool QDockWidget::event ( QEvent event)
protectedvirtual

Reimplemented Function

Reimplemented from QWidget.

Definition at line 1415 of file qdockwidget.cpp.

1416 {
1417  Q_D(QDockWidget);
1418 
1421 
1422  switch (event->type()) {
1423 #ifndef QT_NO_ACTION
1424  case QEvent::Hide:
1425  if (layout != 0)
1426  layout->keepSize(this);
1427  d->toggleViewAction->setChecked(false);
1428  emit visibilityChanged(false);
1429  break;
1430  case QEvent::Show: {
1431  d->toggleViewAction->setChecked(true);
1432  const QPoint parentTopLeft = isWindow() ?
1434  emit visibilityChanged(geometry().right() >= parentTopLeft.x() && geometry().bottom() >= parentTopLeft.y());
1435 }
1436  break;
1437 #endif
1440  case QEvent::StyleChange:
1441  case QEvent::ParentChange:
1442  d->updateButtons();
1443  break;
1444  case QEvent::ZOrderChange: {
1445  bool onTop = false;
1446  if (win != 0) {
1447  const QObjectList &siblings = win->children();
1448  onTop = siblings.count() > 0 && siblings.last() == (QObject*)this;
1449  }
1450  if (!isFloating() && layout != 0 && onTop)
1451  layout->raise(this);
1452  break;
1453  }
1456  update(qobject_cast<QDockWidgetLayout *>(this->layout())->titleArea());
1457  break;
1458  case QEvent::ContextMenu:
1459  if (d->state) {
1460  event->accept();
1461  return true;
1462  }
1463  break;
1464  // return true after calling the handler since we don't want
1465  // them to be passed onto the default handlers
1467  if (d->mousePressEvent(static_cast<QMouseEvent *>(event)))
1468  return true;
1469  break;
1471  if (d->mouseDoubleClickEvent(static_cast<QMouseEvent *>(event)))
1472  return true;
1473  break;
1474  case QEvent::MouseMove:
1475  if (d->mouseMoveEvent(static_cast<QMouseEvent *>(event)))
1476  return true;
1477  break;
1478 #ifdef Q_OS_WIN
1479  case QEvent::Leave:
1480  if (d->state != 0 && d->state->dragging && !d->state->nca) {
1481  // This is a workaround for loosing the mouse on Vista.
1482  QPoint pos = QCursor::pos();
1485  d->mouseMoveEvent(&fake);
1486  }
1487  break;
1488 #endif
1490  if (d->mouseReleaseEvent(static_cast<QMouseEvent *>(event)))
1491  return true;
1492  break;
1497  d->nonClientAreaMouseEvent(static_cast<QMouseEvent*>(event));
1498  return true;
1499  case QEvent::Move:
1500  d->moveEvent(static_cast<QMoveEvent*>(event));
1501  break;
1502  case QEvent::Resize:
1503  // if the mainwindow is plugging us, we don't want to update undocked geometry
1504  if (isFloating() && layout != 0 && layout->pluggingWidget != this)
1505  d->undockedGeometry = geometry();
1506  break;
1507  default:
1508  break;
1509  }
1510  return QWidget::event(event);
1511 }
QPoint pos() const
double d
Definition: qnumeric_p.h:62
QWidget * parentWidget() const
Returns the parent of this widget, or 0 if it does not have any parent widget.
Definition: qwidget.h:1035
The QDockWidget class provides a widget that can be docked inside a QMainWindow or floated as a top-l...
Definition: qdockwidget.h:60
bool isWindow() const
Returns true if the widget is an independent window, otherwise returns false.
Definition: qwidget.h:945
void visibilityChanged(bool visible)
This signal is emitted when the dock widget becomes visible (or invisible).
int count(const T &t) const
Returns the number of occurrences of value in the list.
Definition: qlist.h:891
int bottom() const
Returns the y-coordinate of the rectangle&#39;s bottom edge.
Definition: qrect.h:249
T * qobject_cast(QObject *object)
Definition: qobject.h:375
The QObject class is the base class of all Qt objects.
Definition: qobject.h:111
#define Q_D(Class)
Definition: qglobal.h:2482
Q_CORE_EXPORT QTextStream & right(QTextStream &s)
void update()
Updates the widget unless updates are disabled or the widget is hidden.
Definition: qwidget.cpp:10883
#define emit
Definition: qobjectdefs.h:76
The QMouseEvent class contains parameters that describe a mouse event.
Definition: qevent.h:85
static QDesktopWidget * desktop()
Returns the desktop widget (also called the root window).
static Qt::KeyboardModifiers keyboardModifiers()
Returns the current state of the modifier keys on the keyboard.
The QPoint class defines a point in the plane using integer precision.
Definition: qpoint.h:53
T & last()
Returns a reference to the last item in the list.
Definition: qlist.h:284
The QMainWindow class provides a main application window.
Definition: qmainwindow.h:63
bool isFloating() const
Definition: qdockwidget.h:96
const QObjectList & children() const
Returns a list of child objects.
Definition: qobject.h:197
int y() const
Returns the y coordinate of this point.
Definition: qpoint.h:131
QPoint mapFromGlobal(const QPoint &) const
Translates the global screen coordinate pos to widget coordinates.
QLayout * layout() const
Returns the layout manager that is installed on this widget, or 0 if no layout manager is installed...
Definition: qwidget.cpp:10073
static Qt::MouseButtons mouseButtons()
Returns the current state of the buttons on the mouse.
int x() const
Returns the x coordinate of this point.
Definition: qpoint.h:128
const QRect availableGeometry(int screen=-1) const
bool event(QEvent *)
This is the main event handler; it handles event event.
Definition: qwidget.cpp:8636
QMainWindowLayout * qt_mainwindow_layout(const QMainWindow *window)
const QRect & geometry() const
Type type() const
Returns the event type.
Definition: qcoreevent.h:303
static QPoint pos()
Returns the position of the cursor (hot spot) in global screen coordinates.
Definition: qcursor_mac.mm:310
QPoint topLeft() const
Returns the position of the rectangle&#39;s top-left corner.
Definition: qrect.h:288

◆ features()

DockWidgetFeatures QDockWidget::features ( ) const

Referenced by setFeatures().

◆ featuresChanged

void QDockWidget::featuresChanged ( QDockWidget::DockWidgetFeatures  features)
signal

This signal is emitted when the features property changes.

The features parameter gives the new value of the property.

Referenced by setFeatures().

◆ initStyleOption()

void QDockWidget::initStyleOption ( QStyleOptionDockWidget option) const
protected

Initialize option with the values from this QDockWidget.

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

See also
QStyleOption::initFrom()

Definition at line 618 of file qdockwidget.cpp.

Referenced by paintEvent(), and QDockWidgetLayout::setGeometry().

619 {
620  Q_D(const QDockWidget);
621 
622  if (!option)
623  return;
625 
626  option->initFrom(this);
627  option->rect = dwlayout->titleArea();
628  option->title = d->fixedWindowTitle;
632 
636  if (v2 != 0)
638 }
double d
Definition: qnumeric_p.h:62
The QDockWidget class provides a widget that can be docked inside a QMainWindow or floated as a top-l...
Definition: qdockwidget.h:60
bool closable
whether the dock window is closable
Definition: qstyleoption.h:511
T * qobject_cast(QObject *object)
Definition: qobject.h:375
#define Q_D(Class)
Definition: qglobal.h:2482
bool movable
whether the dock window is movable
Definition: qstyleoption.h:512
void initFrom(const QWidget *w)
Definition: qstyleoption.h:99
bool floatable
whether the dock window is floatable
Definition: qstyleoption.h:513
static bool hasFeature(const QDockWidgetPrivate *priv, QDockWidget::DockWidgetFeature feature)
Definition: qdockwidget.cpp:74
QRect titleArea() const
T qstyleoption_cast(const QStyleOption *opt)
Definition: qstyleoption.h:885
QFactoryLoader * l
QString title
the title of the dock window
Definition: qstyleoption.h:510
QLayout * layout() const
Returns the layout manager that is installed on this widget, or 0 if no layout manager is installed...
Definition: qwidget.cpp:10073
QRect rect
the area that should be used for various calculations and painting
Definition: qstyleoption.h:90

◆ isAreaAllowed()

bool QDockWidget::isAreaAllowed ( Qt::DockWidgetArea  area) const
inline

Returns true if this dock widget can be placed in the given area; otherwise returns false.

Definition at line 104 of file qdockwidget.h.

105  { return (allowedAreas() & area) == area; }
Qt::DockWidgetAreas allowedAreas() const
static int area(const QSize &s)
Definition: qicon.cpp:155

◆ isFloating()

bool QDockWidget::isFloating ( ) const
inline

Definition at line 96 of file qdockwidget.h.

Referenced by QAccessibleTitleBar::actionText(), QWindowsVistaStyle::drawControl(), event(), QDockWidgetLayout::minimumSize(), paintEvent(), QDockWidgetLayout::setGeometry(), and QDockWidgetLayout::sizeHint().

96 { return isWindow(); }
bool isWindow() const
Returns true if the widget is an independent window, otherwise returns false.
Definition: qwidget.h:945

◆ paintEvent()

void QDockWidget::paintEvent ( QPaintEvent event)
protectedvirtual

Reimplemented Function

Reimplemented from QWidget.

Definition at line 1387 of file qdockwidget.cpp.

1388 {
1389  Q_UNUSED(event)
1390 
1392  = qobject_cast<QDockWidgetLayout*>(this->layout());
1393  bool customTitleBar = layout->widgetForRole(QDockWidgetLayout::TitleBar) != 0;
1394  bool nativeDeco = layout->nativeWindowDeco();
1395 
1396  if (!nativeDeco && !customTitleBar) {
1397  QStylePainter p(this);
1398  // ### Add PixelMetric to change spacers, so style may show border
1399  // when not floating.
1400  if (isFloating()) {
1401  QStyleOptionFrame framOpt;
1402  framOpt.init(this);
1403  p.drawPrimitive(QStyle::PE_FrameDockWidget, framOpt);
1404  }
1405 
1406  // Title must be painted after the frame, since the areas overlap, and
1407  // the title may wish to extend out to all sides (eg. XP style)
1408  QStyleOptionDockWidgetV2 titleOpt;
1409  initStyleOption(&titleOpt);
1410  p.drawControl(QStyle::CE_DockWidgetTitle, titleOpt);
1411  }
1412 }
void init(const QWidget *w)
Use initFrom(widget) instead.
T * qobject_cast(QObject *object)
Definition: qobject.h:375
The QStyleOptionFrame class is used to describe the parameters for drawing a frame.
Definition: qstyleoption.h:118
bool nativeWindowDeco() const
bool isFloating() const
Definition: qdockwidget.h:96
QWidget * widgetForRole(Role r) const
The QStylePainter class is a convenience class for drawing QStyle elements inside a widget...
Definition: qstylepainter.h:55
QLayout * layout() const
Returns the layout manager that is installed on this widget, or 0 if no layout manager is installed...
Definition: qwidget.cpp:10073
void initStyleOption(QStyleOptionDockWidget *option) const
Initialize option with the values from this QDockWidget.
#define Q_UNUSED(x)
Indicates to the compiler that the parameter with the specified name is not used in the body of a fun...
Definition: qglobal.h:1729

◆ setAllowedAreas()

void QDockWidget::setAllowedAreas ( Qt::DockWidgetAreas  areas)

Definition at line 1321 of file qdockwidget.cpp.

1322 {
1323  Q_D(QDockWidget);
1324  areas &= Qt::DockWidgetArea_Mask;
1325  if (areas == d->allowedAreas)
1326  return;
1327  d->allowedAreas = areas;
1328  emit allowedAreasChanged(d->allowedAreas);
1329 }
double d
Definition: qnumeric_p.h:62
void allowedAreasChanged(Qt::DockWidgetAreas allowedAreas)
This signal is emitted when the allowedAreas property changes.
The QDockWidget class provides a widget that can be docked inside a QMainWindow or floated as a top-l...
Definition: qdockwidget.h:60
#define Q_D(Class)
Definition: qglobal.h:2482
#define emit
Definition: qobjectdefs.h:76

◆ setFeatures()

void QDockWidget::setFeatures ( DockWidgetFeatures  features)

Definition at line 1245 of file qdockwidget.cpp.

1246 {
1247  Q_D(QDockWidget);
1249  if (d->features == features)
1250  return;
1251  const bool closableChanged = (d->features ^ features) & DockWidgetClosable;
1252  d->features = features;
1254  = qobject_cast<QDockWidgetLayout*>(this->layout());
1256  d->updateButtons();
1257  d->toggleViewAction->setEnabled((d->features & DockWidgetClosable) == DockWidgetClosable);
1258  emit featuresChanged(d->features);
1259  update();
1260  if (closableChanged && layout->nativeWindowDeco()) {
1261  //this ensures the native decoration is drawn
1262  d->setWindowState(true /*floating*/, true /*unplug*/);
1263  }
1264 }
double d
Definition: qnumeric_p.h:62
The QDockWidget class provides a widget that can be docked inside a QMainWindow or floated as a top-l...
Definition: qdockwidget.h:60
void featuresChanged(QDockWidget::DockWidgetFeatures features)
This signal is emitted when the features property changes.
DockWidgetFeatures features() const
T * qobject_cast(QObject *object)
Definition: qobject.h:375
#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
#define emit
Definition: qobjectdefs.h:76
bool nativeWindowDeco() const
void setVerticalTitleBar(bool b)
QLayout * layout() const
Returns the layout manager that is installed on this widget, or 0 if no layout manager is installed...
Definition: qwidget.cpp:10073

◆ setFloating()

void QDockWidget::setFloating ( bool  floating)

Definition at line 1287 of file qdockwidget.cpp.

Referenced by QDockAreaLayoutInfo::restoreState().

1288 {
1289  Q_D(QDockWidget);
1290 
1291  // the initial click of a double-click may have started a drag...
1292  if (d->state != 0)
1293  d->endDrag(true);
1294 
1295  QRect r = d->undockedGeometry;
1296  // Keep position when undocking for the first time.
1297  if (floating && isVisible() && !r.isValid())
1298  r = QRect(mapToGlobal(QPoint(0, 0)), size());
1299 
1300  d->setWindowState(floating, false, floating ? r : QRect());
1301 
1302  if (floating && r.isNull()) {
1303  if (x() < 0 || y() < 0) //may happen if we have been hidden
1304  move(QPoint());
1305  setAttribute(Qt::WA_Moved, false); //we want it at the default position
1306  }
1307 }
double d
Definition: qnumeric_p.h:62
bool isNull() const
Returns true if the rectangle is a null rectangle, otherwise returns false.
Definition: qrect.h:231
int y() const
QSize size() const
The QDockWidget class provides a widget that can be docked inside a QMainWindow or floated as a top-l...
Definition: qdockwidget.h:60
bool isVisible() const
Definition: qwidget.h:1005
#define Q_D(Class)
Definition: qglobal.h:2482
int x() const
The QPoint class defines a point in the plane using integer precision.
Definition: qpoint.h:53
The QRect class defines a rectangle in the plane using integer precision.
Definition: qrect.h:58
bool floating
whether the dock widget is floating
Definition: qdockwidget.h:65
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
bool isValid() const
Returns true if the rectangle is valid, otherwise returns false.
Definition: qrect.h:237
QPoint mapToGlobal(const QPoint &) const
Translates the widget coordinate pos to global screen coordinates.
void move(int x, int y)
This corresponds to move(QPoint(x, y)).
Definition: qwidget.h:1011

◆ setTitleBarWidget()

void QDockWidget::setTitleBarWidget ( QWidget widget)

Sets an arbitrary widget as the dock widget's title bar.

Since
4.3

If widget is 0, any custom title bar widget previously set on the dock widget is removed, but not deleted, and the default title bar will be used instead.

If a title bar widget is set, QDockWidget will not use native window decorations when it is floated.

Here are some tips for implementing custom title bars:

  • Mouse events that are not explicitly handled by the title bar widget must be ignored by calling QMouseEvent::ignore(). These events then propagate to the QDockWidget parent, which handles them in the usual manner, moving when the title bar is dragged, docking and undocking when it is double-clicked, etc.

  • When DockWidgetVerticalTitleBar is set on QDockWidget, the title bar widget is repositioned accordingly. In resizeEvent(), the title bar should check what orientation it should assume:
    // I need to be vertical
    } else {
    // I need to be horizontal
    }
  • The title bar widget must have a valid QWidget::sizeHint() and QWidget::minimumSizeHint(). These functions should take into account the current orientation of the title bar.

  • It is not possible to remove a title bar from a dock widget. However, a similar effect can be achieved by setting a default constructed QWidget as the title bar widget.

Using qobject_cast() as shown above, the title bar widget has full access to its parent QDockWidget. Hence it can perform such operations as docking and hiding in response to user actions.

See also
titleBarWidget() DockWidgetVerticalTitleBar

Definition at line 1632 of file qdockwidget.cpp.

1633 {
1634  Q_D(QDockWidget);
1636  = qobject_cast<QDockWidgetLayout*>(this->layout());
1638  d->updateButtons();
1639  if (isWindow()) {
1640  //this ensures the native decoration is drawn
1641  d->setWindowState(true /*floating*/, true /*unplug*/);
1642  }
1643 }
double d
Definition: qnumeric_p.h:62
The QDockWidget class provides a widget that can be docked inside a QMainWindow or floated as a top-l...
Definition: qdockwidget.h:60
bool isWindow() const
Returns true if the widget is an independent window, otherwise returns false.
Definition: qwidget.h:945
void setWidgetForRole(Role r, QWidget *w)
T * qobject_cast(QObject *object)
Definition: qobject.h:375
#define Q_D(Class)
Definition: qglobal.h:2482
QLayout * layout() const
Returns the layout manager that is installed on this widget, or 0 if no layout manager is installed...
Definition: qwidget.cpp:10073

◆ setWidget()

void QDockWidget::setWidget ( QWidget widget)

Sets the widget for the dock widget to widget.

If the dock widget is visible when widget is added, you must QWidget::show() it explicitly.

Note that you must add the layout of the widget before you call this function; if not, the widget will not be visible.

See also
widget()

Definition at line 1226 of file qdockwidget.cpp.

Referenced by QScriptEngineDebugger::standardWindow().

1227 {
1230 }
void setWidgetForRole(Role r, QWidget *w)
T * qobject_cast(QObject *object)
Definition: qobject.h:375
QLayout * layout() const
Returns the layout manager that is installed on this widget, or 0 if no layout manager is installed...
Definition: qwidget.cpp:10073

◆ titleBarWidget()

QWidget * QDockWidget::titleBarWidget ( ) const

Returns the custom title bar widget set on the QDockWidget, or 0 if no custom title bar has been set.

Since
4.3
See also
setTitleBarWidget()

Definition at line 1656 of file qdockwidget.cpp.

1657 {
1659  = qobject_cast<QDockWidgetLayout*>(this->layout());
1661 }
T * qobject_cast(QObject *object)
Definition: qobject.h:375
QWidget * widgetForRole(Role r) const
QLayout * layout() const
Returns the layout manager that is installed on this widget, or 0 if no layout manager is installed...
Definition: qwidget.cpp:10073

◆ toggleViewAction()

QAction * QDockWidget::toggleViewAction ( ) const

Returns a checkable action that can be used to show or close this dock widget.

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

See also
QAction::text QWidget::windowTitle

Definition at line 1522 of file qdockwidget.cpp.

Referenced by QMainWindow::createPopupMenu(), and QScriptEngineDebugger::standardWindow().

1523 {
1524  Q_D(const QDockWidget);
1525  return d->toggleViewAction;
1526 }
double d
Definition: qnumeric_p.h:62
The QDockWidget class provides a widget that can be docked inside a QMainWindow or floated as a top-l...
Definition: qdockwidget.h:60
#define Q_D(Class)
Definition: qglobal.h:2482

◆ topLevelChanged

void QDockWidget::topLevelChanged ( bool  topLevel)
signal

This signal is emitted when the floating property changes.

The topLevel parameter is true if the dock widget is now floating; otherwise it is false.

See also
isWindow()

◆ visibilityChanged

void QDockWidget::visibilityChanged ( bool  visible)
signal

This signal is emitted when the dock widget becomes visible (or invisible).

Since
4.3

This happens when the widget is hidden or shown, as well as when it is docked in a tabbed dock area and its tab becomes selected or unselected.

Referenced by QDockAreaLayoutInfo::apply(), and event().

◆ widget()

QWidget * QDockWidget::widget ( ) const

Returns the widget for the dock widget.

This function returns zero if the widget has not been set.

See also
setWidget()

Definition at line 1209 of file qdockwidget.cpp.

Referenced by QAccessibleDockWidget::childCount(), and QAccessibleDockWidget::rect().

1210 {
1212  return layout->widgetForRole(QDockWidgetLayout::Content);
1213 }
T * qobject_cast(QObject *object)
Definition: qobject.h:375
QWidget * widgetForRole(Role r) const
QLayout * layout() const
Returns the layout manager that is installed on this widget, or 0 if no layout manager is installed...
Definition: qwidget.cpp:10073

Friends and Related Functions

◆ QDockAreaLayout

friend class QDockAreaLayout
friend

Definition at line 130 of file qdockwidget.h.

◆ QDockAreaLayoutInfo

friend class QDockAreaLayoutInfo
friend

Definition at line 134 of file qdockwidget.h.

◆ QDockWidgetItem

friend class QDockWidgetItem
friend

Definition at line 131 of file qdockwidget.h.

◆ QDockWidgetLayout

friend class QDockWidgetLayout
friend

Definition at line 133 of file qdockwidget.h.

◆ QMainWindowLayout

friend class QMainWindowLayout
friend

Definition at line 132 of file qdockwidget.h.

Properties

◆ allowedAreas

Qt::DockWidgetAreas QDockWidget::allowedAreas
private

areas where the dock widget may be placed

The default is Qt::AllDockWidgetAreas.

See also
Qt::DockWidgetArea

Definition at line 67 of file qdockwidget.h.

◆ features

QDockWidget::DockWidgetFeatures QDockWidget::features
private

whether the dock widget is movable, closable, and floatable

By default, this property is set to a combination of DockWidgetClosable, DockWidgetMovable and DockWidgetFloatable.

See also
DockWidgetFeature

Definition at line 66 of file qdockwidget.h.

Referenced by hasFeature().

◆ floating

QDockWidget::floating
private

whether the dock widget is floating

A floating dock widget is presented to the user as an independent window "on top" of its parent QMainWindow, instead of being docked in the QMainWindow.

By default, this property is true.

See also
isWindow()

Definition at line 65 of file qdockwidget.h.

◆ windowTitle

QDockWidget::windowTitle
private

the dock widget title (caption)

By default, this property contains an empty string.

Definition at line 68 of file qdockwidget.h.


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