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TGMenuBar Class Reference

The TGMenu.h header contains all different menu classes.

The TGMenuBar class implements a menu bar widget. It is used to specify and provide access to common and frequently used application actions grouped under menu titles (TGMenuTitle class). The menu bar takes the highest-level of the menu system and it is a starting point for many interactions. It is always visible and allows using the keyboard equivalents. The geometry of the menu bar is automatically set to the parent widget, i.e. the menu bar automatically resizes itself so that it has the same width as its parent (typically TGMainFrame). A menu bar contains one or more popup menus and usually is placed along the top of the application window. Any popup menu is invisible until the user invokes it by using the mouse pointer or the keyboard.

Popup menus implemented by TGPopupMenu class are unique in that, by convention, they are not placed with the other GUI components in the user interfaces. Instead, a popup menu usually appears either in a menu bar or as a context menu on the TOP of the GUI. For that reason it needs gClient->GetDefaultRoot() as a parent to get the pointer to the root (i.e. desktop) window. This way a popup menu will never be embedded. NOTE: Using gClient->GetRoot() as a parent of TGPopupMenu will not avoid the possibility of embedding the corresponding popup menu because the current window hierarchy can be changed by using gClient->SetRoot() method.

As a context menus TGPopupMenu shows up after pressing the right mouse button, over a popup-enabled component. The popup menu then appears under the mouse pointer.

Selecting a menu item will generate the event: kC_COMMAND, kCM_MENU, menu id, user data.

Definition at line 282 of file TGMenu.h.

Public Member Functions

 TGMenuBar (const TGWindow *p=nullptr, UInt_t w=60, UInt_t h=20, UInt_t options=kHorizontalFrame|kRaisedFrame)
 Create a menu bar object.
 
 ~TGMenuBar () override
 Delete menu bar object.
 
virtual void AddPopup (const char *s, TGPopupMenu *menu, TGLayoutHints *l, TGPopupMenu *before=nullptr)
 Add popup menu to menu bar.
 
virtual TGPopupMenuAddPopup (const TString &s, Int_t padleft=4, Int_t padright=0, Int_t padtop=0, Int_t padbottom=0)
 Add popup menu to menu bar.
 
virtual void AddPopup (TGHotString *s, TGPopupMenu *menu, TGLayoutHints *l, TGPopupMenu *before=nullptr)
 Add popup menu to menu bar.
 
virtual void AddTitle (TGMenuTitle *title, TGLayoutHints *l, TGPopupMenu *before=nullptr)
 Add popup via created before menu title.
 
virtual TGMenuTitleGetCurrent () const
 
TGFrameElementGetLastOnLeft ()
 Returns the last visible menu title on the left of the '>>' in the menu bar.
 
virtual TGPopupMenuGetPopup (const char *s)
 Return popup menu with the specified name.
 
virtual TListGetTitles () const
 
Bool_t HandleButton (Event_t *event) override
 Handle a mouse button event in a menubar.
 
Bool_t HandleKey (Event_t *event) override
 Handle keyboard events in a menu bar.
 
Bool_t HandleMotion (Event_t *event) override
 Handle a mouse motion event in a menu bar.
 
TClassIsA () const override
 
void Layout () override
 Calculates whether the >> menu must be shown or not and which menu titles are hidden.
 
void PopupConnection ()
 Connects the corresponding cascaded menu to the proper slots, according to the highlighted menu entry in '>>' menu.
 
virtual TGPopupMenuRemovePopup (const char *s)
 Remove popup menu from menu bar.
 
void SavePrimitive (std::ostream &out, Option_t *option="") override
 Save a menu bar widget as a C++ statement(s) on output stream out.
 
void Streamer (TBuffer &) override
 Stream an object of class TObject.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
- Public Member Functions inherited from TGHorizontalFrame
 TGHorizontalFrame (const TGWindow *p=nullptr, UInt_t w=1, UInt_t h=1, UInt_t options=kChildFrame, Pixel_t back=GetDefaultFrameBackground())
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
- Public Member Functions inherited from TGCompositeFrame
 TGCompositeFrame (const TGWindow *p=nullptr, UInt_t w=1, UInt_t h=1, UInt_t options=0, Pixel_t back=GetDefaultFrameBackground())
 Create a composite frame.
 
 TGCompositeFrame (TGClient *c, Window_t id, const TGWindow *parent=nullptr)
 Create a frame using an externally created window.
 
 ~TGCompositeFrame () override
 Delete a composite frame.
 
virtual void AddFrame (TGFrame *f, TGLayoutHints *l=nullptr)
 Add frame to the composite frame using the specified layout hints.
 
void ChangeOptions (UInt_t options) override
 Change composite frame options. Options is an OR of the EFrameTypes.
 
virtual void ChangeSubframesBackground (Pixel_t back)
 Change background color for this frame and all subframes.
 
virtual void Cleanup ()
 Cleanup and delete all objects contained in this composite frame.
 
virtual TGFrameElementFindFrameElement (TGFrame *f) const
 Find frame-element holding frame f.
 
UInt_t GetDefaultHeight () const override
 
TGDimension GetDefaultSize () const override
 std::cout << fWidth << "x" << fHeight << std::endl;
 
UInt_t GetDefaultWidth () const override
 
TGFrameGetFrameFromPoint (Int_t x, Int_t y) override
 Get frame located at specified point.
 
virtual TGLayoutManagerGetLayoutManager () const
 
virtual TListGetList () const
 
Int_t GetState (TGFrame *f) const
 Get state of sub frame.
 
Bool_t HandleCrossing (Event_t *) override
 
Bool_t HandleDoubleClick (Event_t *) override
 
Bool_t HandleDragDrop (TGFrame *frame, Int_t x, Int_t y, TGLayoutHints *lo) override
 Handle drop event.
 
Bool_t HandleDragEnter (TGFrame *) override
 Handle drag enter event.
 
Bool_t HandleDragLeave (TGFrame *) override
 Handle drag leave event.
 
Bool_t HandleDragMotion (TGFrame *) override
 Handle drag motion event.
 
Bool_t HandleFocusChange (Event_t *) override
 
Bool_t HandleSelection (Event_t *) override
 
virtual void HideFrame (TGFrame *f)
 Hide sub frame.
 
Bool_t IsArranged (TGFrame *f) const
 Get state of sub frame.
 
Bool_t IsArranged (TGFrameElement *ptr) const
 
Bool_t IsComposite () const override
 
Bool_t IsEditable () const override
 Return kTRUE if frame is being edited.
 
Bool_t IsLayoutBroken () const override
 
Bool_t IsMapSubwindows () const override
 
Bool_t IsVisible (TGFrame *f) const
 Get state of sub frame.
 
Bool_t IsVisible (TGFrameElement *ptr) const
 
void MapSubwindows () override
 Map all sub windows that are part of the composite frame.
 
Int_t MustCleanup () const override
 
void Print (Option_t *option="") const override
 Print all frames in this composite frame.
 
Bool_t ProcessMessage (Longptr_t, Longptr_t, Longptr_t) override
 
virtual void RemoveAll ()
 Remove all frames from composite frame.
 
virtual void RemoveFrame (TGFrame *f)
 Remove frame from composite frame.
 
virtual void SavePrimitiveSubframes (std::ostream &out, Option_t *option="")
 Auxiliary protected method used to save subframes.
 
void SetCleanup (Int_t mode=kLocalCleanup) override
 Turn on automatic cleanup of child frames in dtor.
 
void SetEditable (Bool_t on=kTRUE) override
 Switch ON/OFF edit mode.
 
void SetEditDisabled (UInt_t on=1) override
 Set edit disable flag for this frame and subframes.
 
void SetLayoutBroken (Bool_t on=kTRUE) override
 Set broken layout. No Layout method is called.
 
virtual void SetLayoutManager (TGLayoutManager *l)
 Set the layout manager for the composite frame.
 
void SetMapSubwindows (Bool_t on) override
 
virtual void ShowFrame (TGFrame *f)
 Show sub frame.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
virtual Bool_t TranslateCoordinates (TGFrame *child, Int_t x, Int_t y, Int_t &fx, Int_t &fy)
 Translate coordinates to child frame.
 
- Public Member Functions inherited from TGFrame
 TGFrame (const TGWindow *p=nullptr, UInt_t w=1, UInt_t h=1, UInt_t options=0, Pixel_t back=GetDefaultFrameBackground())
 Create a TGFrame object. Options is an OR of the EFrameTypes.
 
 TGFrame (TGClient *c, Window_t id, const TGWindow *parent=nullptr)
 Create a frame using an externally created window.
 
 ~TGFrame () override
 Destructor.
 
virtual void Activate (Bool_t)
 
void AddInput (UInt_t emask)
 Add events specified in the emask to the events the frame should handle.
 
virtual void ChangeBackground (Pixel_t back)
 Change frame background color.
 
Bool_t Contains (Int_t x, Int_t y) const
 
void Delete (Option_t *="") override
 Delete this object.
 
virtual void DeleteWindow ()
 Delete window.
 
virtual void DrawBorder ()
 Draw frame border.
 
void DrawClass () const override
 Draw class inheritance tree of the class to which this object belongs.
 
TObjectDrawClone (Option_t *="") const override
 Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1).
 
virtual void DrawCopy (Handle_t, Int_t, Int_t)
 
void Dump () const override
 Dump contents of object on stdout.
 
virtual Pixel_t GetBackground () const
 
Int_t GetBorderWidth () const
 
virtual TDNDDataGetDNDData (Atom_t)
 
virtual Int_t GetDragType () const
 Returns drag source type.
 
virtual Int_t GetDropType () const
 Returns drop target type.
 
UInt_t GetEventMask () const
 
virtual Pixel_t GetForeground () const
 Return frame foreground color.
 
TGFrameElementGetFrameElement () const
 
UInt_t GetHeight () const
 
UInt_t GetMaxHeight () const
 
UInt_t GetMaxWidth () const
 
UInt_t GetMinHeight () const
 
UInt_t GetMinWidth () const
 
virtual UInt_t GetOptions () const
 
TGDimension GetSize () const
 
UInt_t GetWidth () const
 
Int_t GetX () const
 
Int_t GetY () const
 
virtual Bool_t HandleClientMessage (Event_t *event)
 Handle a client message.
 
virtual Bool_t HandleColormapChange (Event_t *)
 
virtual Bool_t HandleConfigureNotify (Event_t *event)
 This event is generated when the frame is resized.
 
virtual Bool_t HandleDNDDrop (TDNDData *)
 
virtual Atom_t HandleDNDEnter (Atom_t *)
 
virtual Bool_t HandleDNDFinished ()
 
virtual Bool_t HandleDNDLeave ()
 
virtual Atom_t HandleDNDPosition (Int_t, Int_t, Atom_t, Int_t, Int_t)
 
Bool_t HandleEvent (Event_t *event) override
 Handle all frame events.
 
virtual Bool_t HandleSelectionClear (Event_t *)
 
virtual Bool_t HandleSelectionRequest (Event_t *)
 
void Inspect () const override
 Dump contents of this object in a graphics canvas.
 
virtual Bool_t IsActive () const
 
Bool_t IsDNDSource () const
 
Bool_t IsDNDTarget () const
 
Bool_t IsEditable () const override
 
void MapRaised () override
 map raised
 
void MapSubwindows () override
 map sub windows
 
void MapWindow () override
 map window
 
void Move (Int_t x, Int_t y) override
 Move frame.
 
void MoveResize (Int_t x, Int_t y, UInt_t w=0, UInt_t h=0) override
 Move and/or resize the frame.
 
void Print (Option_t *option="") const override
 Print window id.
 
virtual void ProcessedConfigure (Event_t *event)
 
virtual void ProcessedEvent (Event_t *event)
 
virtual void ReallyDelete ()
 
void RemoveInput (UInt_t emask)
 Remove events specified in emask from the events the frame should handle.
 
void ReparentWindow (const TGWindow *p, Int_t x=0, Int_t y=0) override
 Reparent window, make p the new parent and position the window at position (x,y) in new parent.
 
virtual void Resize (TGDimension size)
 Resize the frame.
 
void Resize (UInt_t w=0, UInt_t h=0) override
 Resize the frame.
 
void SaveUserColor (std::ostream &out, Option_t *)
 Save a user color in a C++ macro file - used in SavePrimitive().
 
virtual void SendMessage (const TGWindow *w, Longptr_t msg, Longptr_t parm1, Longptr_t parm2)
 Send message (i.e.
 
void SetBackgroundColor (Pixel_t back) override
 Set background color (override from TGWindow base class).
 
void SetDNDSource (Bool_t onoff)
 
void SetDNDTarget (Bool_t onoff)
 
virtual void SetDragType (Int_t type)
 SetDragType.
 
void SetDrawOption (Option_t *="") override
 Set drawing option for object.
 
virtual void SetDropType (Int_t type)
 SetDropType.
 
void SetEditable (Bool_t) override
 
virtual void SetForegroundColor (Pixel_t)
 
void SetFrameElement (TGFrameElement *fe)
 
virtual void SetHeight (UInt_t h)
 
virtual void SetMaxHeight (UInt_t h)
 
virtual void SetMaxWidth (UInt_t w)
 
virtual void SetMinHeight (UInt_t h)
 
virtual void SetMinWidth (UInt_t w)
 
virtual void SetSize (const TGDimension &s)
 
virtual void SetWidth (UInt_t w)
 
virtual void SetX (Int_t x)
 
virtual void SetY (Int_t y)
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
void UnmapWindow () override
 unmap window
 
- Public Member Functions inherited from TGWindow
 TGWindow (const TGWindow *p=nullptr, Int_t x=0, Int_t y=0, UInt_t w=0, UInt_t h=0, UInt_t border=0, Int_t depth=0, UInt_t clss=0, void *visual=nullptr, SetWindowAttributes_t *attr=nullptr, UInt_t wtype=0)
 Create a new window.
 
 TGWindow (TGClient *c, Window_t id, const TGWindow *parent=nullptr)
 Create a copy of a window.
 
 ~TGWindow () override
 Window destructor. Unregisters the window.
 
virtual void DestroySubwindows ()
 destroy sub windows
 
virtual void DestroyWindow ()
 destroy window
 
virtual UInt_t GetEditDisabled () const
 
virtual const TGWindowGetMainFrame () const
 Returns top level main frame.
 
const char * GetName () const override
 Return unique name, used in SavePrimitive methods.
 
const TGWindowGetParent () const
 
virtual Bool_t HandleExpose (Event_t *event)
 
virtual Bool_t HandleIdleEvent (TGIdleHandler *)
 
Bool_t HandleTimer (TTimer *) override
 Execute action in response of a timer timing out.
 
virtual void IconifyWindow ()
 iconify window
 
TClassIsA () const override
 
virtual Bool_t IsMapped ()
 Returns kTRUE if window is mapped on screen, kFALSE otherwise.
 
virtual void LowerWindow ()
 lower window
 
void Print (Option_t *option="") const override
 Print window id.
 
virtual void RaiseWindow ()
 raise window
 
virtual void RequestFocus ()
 request focus
 
virtual void SetBackgroundPixmap (Pixmap_t pixmap)
 set background pixmap
 
virtual void SetName (const char *name)
 
virtual void SetWindowName (const char *name=nullptr)
 Set window name.
 
void Streamer (TBuffer &) override
 Stream an object of class TObject.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
- Public Member Functions inherited from TGObject
 TGObject ()
 
 TGObject (const TGObject &tgo)
 
 ~TGObject () override
 TGObject destructor.
 
TGClientGetClient () const
 
Handle_t GetId () const
 
ULong_t Hash () const override
 Return hash value for this object.
 
Bool_t IsEqual (const TObject *obj) const override
 Equal comparison (TGObjects are equal if they have the same window identifier).
 
void SaveAs (const char *filename="", Option_t *option="") const override
 Write this TGObject to a file using TImage, if filename's extension signals a valid TImage::EImageFileType, as defined by TImage::GetImageFileTypeFromFilename().
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor.
 
 TObject (const TObject &object)
 TObject copy ctor.
 
virtual ~TObject ()
 TObject destructor.
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract.
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad.
 
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action.
 
ULong_t CheckedHash ()
 Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs.
 
virtual void Clear (Option_t *="")
 
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility.
 
virtual Int_t Compare (const TObject *obj) const
 Compare abstract method.
 
virtual void Copy (TObject &object) const
 Copy this to obj.
 
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Computes distance from point (px,py) to the object.
 
virtual void Draw (Option_t *option="")
 Default Draw method for all objects.
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message.
 
virtual void Execute (const char *method, const char *params, Int_t *error=nullptr)
 Execute method on this object with the given parameter string, e.g.
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=nullptr)
 Execute method on this object with parameters stored in the TObjArray.
 
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute action corresponding to an event at (px,py).
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message.
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes.
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes.
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object.
 
virtual const char * GetIconName () const
 Returns mime type name of object.
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py).
 
virtual Option_tGetOption () const
 
virtual const char * GetTitle () const
 Returns title of object.
 
virtual UInt_t GetUniqueID () const
 Return the unique object id.
 
Bool_t HasInconsistentHash () const
 Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message.
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname".
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl.
 
void InvertBit (UInt_t f)
 
Bool_t IsDestructed () const
 IsDestructed.
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).
 
R__ALWAYS_INLINE Bool_t IsOnHeap () const
 
virtual Bool_t IsSortable () const
 
R__ALWAYS_INLINE Bool_t IsZombie () const
 
virtual void ls (Option_t *option="") const
 The ls function lists the contents of a class on stdout.
 
void MayNotUse (const char *method) const
 Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification (the base implementation is no-op).
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete.
 
void operator delete (void *ptr)
 Operator delete.
 
void operator delete[] (void *ptr)
 Operator delete [].
 
void * operator new (size_t sz)
 
void * operator new (size_t sz, void *vp)
 
void * operator new[] (size_t sz)
 
void * operator new[] (size_t sz, void *vp)
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator.
 
virtual void Paint (Option_t *option="")
 This method must be overridden if a class wants to paint itself.
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list.
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory.
 
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list.
 
void ResetBit (UInt_t f)
 
void SetBit (UInt_t f)
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f.
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message.
 
R__ALWAYS_INLINE Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
virtual void UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message.
 
virtual Int_t Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory.
 
virtual Int_t Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory.
 
- Public Member Functions inherited from TQObject
 TQObject ()
 TQObject Constructor.
 
virtual ~TQObject ()
 TQObject Destructor.
 
Bool_t AreSignalsBlocked () const
 
Bool_t BlockSignals (Bool_t b)
 
virtual void ChangedBy (const char *method)
 
void CollectClassSignalLists (TList &list, TClass *cls)
 Collect class signal lists from class cls and all its base-classes.
 
Bool_t Connect (const char *signal, const char *receiver_class, void *receiver, const char *slot)
 Non-static method is used to connect from the signal of this object to the receiver slot.
 
virtual void Connected (const char *)
 
virtual void Destroyed ()
 
Bool_t Disconnect (const char *signal=nullptr, void *receiver=nullptr, const char *slot=nullptr)
 Disconnects signal of this object from slot of receiver.
 
virtual void Disconnected (const char *)
 
void Emit (const char *signal)
 Activate signal without args.
 
template<typename T >
void Emit (const char *signal, const T &arg)
 Activate signal with single parameter.
 
template<typename... T>
void EmitVA (const char *signal_name, Int_t, const T &... params)
 Emit a signal with a varying number of arguments.
 
TListGetListOfClassSignals () const
 Returns pointer to list of signals of this class.
 
TListGetListOfConnections () const
 
TListGetListOfSignals () const
 
virtual Bool_t HasConnection (const char *signal_name) const
 Return true if there is any object connected to this signal.
 
virtual void HighPriority (const char *signal_name, const char *slot_name=nullptr)
 
virtual void LowPriority (const char *signal_name, const char *slot_name=nullptr)
 
virtual void Message (const char *msg)
 
virtual Int_t NumberOfConnections () const
 Return number of connections for this object.
 
virtual Int_t NumberOfSignals () const
 Return number of signals for this object.
 
void StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
 

Static Public Member Functions

static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
- Static Public Member Functions inherited from TGHorizontalFrame
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
- Static Public Member Functions inherited from TGCompositeFrame
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
- Static Public Member Functions inherited from TGFrame
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
static const TGGCGetBckgndGC ()
 Get background color graphics context.
 
static const TGGCGetBlackGC ()
 Get black graphics context.
 
static Pixel_t GetBlackPixel ()
 Get black pixel value.
 
static Pixel_t GetDefaultFrameBackground ()
 Get default frame background.
 
static Pixel_t GetDefaultSelectedBackground ()
 Get default selected frame background.
 
static const TGGCGetHilightGC ()
 Get highlight color graphics context.
 
static const TGGCGetShadowGC ()
 Get shadow color graphics context.
 
static const TGGCGetWhiteGC ()
 Get white graphics context.
 
static Pixel_t GetWhitePixel ()
 Get white pixel value.
 
- Static Public Member Functions inherited from TGWindow
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
static Int_t GetCounter ()
 Return global window counter (total number of created windows).
 
- Static Public Member Functions inherited from TGObject
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
- Static Public Member Functions inherited from TObject
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static const char * DeclFileName ()
 
static Longptr_t GetDtorOnly ()
 Return destructor only flag.
 
static Bool_t GetObjectStat ()
 Get status of object stat flag.
 
static void SetDtorOnly (void *obj)
 Set destructor only flag.
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable.
 
- Static Public Member Functions inherited from TQObject
static Bool_t AreAllSignalsBlocked ()
 Returns true if all signals are blocked.
 
static Bool_t BlockAllSignals (Bool_t b)
 Block or unblock all signals. Returns the previous block status.
 
static TClassClass ()
 
static const char * Class_Name ()
 
static constexpr Version_t Class_Version ()
 
static Bool_t Connect (const char *sender_class, const char *signal, const char *receiver_class, void *receiver, const char *slot)
 This method allows to make a connection from any object of the same class to a single slot.
 
static Bool_t Connect (TQObject *sender, const char *signal, const char *receiver_class, void *receiver, const char *slot)
 Create connection between sender and receiver.
 
static const char * DeclFileName ()
 
static Bool_t Disconnect (const char *class_name, const char *signal, void *receiver=nullptr, const char *slot=nullptr)
 Disconnects "class signal".
 
static Bool_t Disconnect (TQObject *sender, const char *signal=nullptr, void *receiver=nullptr, const char *slot=nullptr)
 Disconnects signal in object sender from slot_method in object receiver.
 

Protected Member Functions

virtual void AddFrameBefore (TGFrame *f, TGLayoutHints *l=nullptr, TGPopupMenu *before=nullptr)
 Private version of AddFrame for menubar, to make sure that we indeed only add TGMenuTitle objects to it.
 
virtual void BindHotKey (Int_t keycode, Bool_t on=kTRUE)
 If on kTRUE bind hot keys, otherwise remove key binding.
 
virtual void BindKeys (Bool_t on=kTRUE)
 If on kTRUE bind arrow, popup menu hot keys, otherwise remove key bindings.
 
void BindMenu (TGPopupMenu *subMenu, Bool_t on)
 If on kTRUE bind subMenu hot keys, otherwise remove key bindings.
 
- Protected Member Functions inherited from TGFrame
void DoRedraw () override
 Redraw the frame.
 
virtual void Draw3dRectangle (UInt_t type, Int_t x, Int_t y, UInt_t w, UInt_t h)
 Draw 3D rectangle on the frame border.
 
TString GetOptionString () const
 Returns a frame option string - used in SavePrimitive().
 
const TGResourcePoolGetResourcePool () const
 
void * GetSender () override
 
virtual void StartGuiBuilding (Bool_t on=kTRUE)
 Go into GUI building mode.
 
- Protected Member Functions inherited from TGWindow
 TGWindow (const TGWindow &tgw)
 
 TGWindow (Window_t id)
 
TGWindowoperator= (const TGWindow &tgw)
 
- Protected Member Functions inherited from TGObject
TGObjectoperator= (const TGObject &tgo)
 
- Protected Member Functions inherited from TObject
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected).
 
void MakeZombie ()
 
- Protected Member Functions inherited from TQObject
virtual const char * GetSenderClassName () const
 

Protected Attributes

TGMenuTitlefCurrent
 current menu title
 
Cursor_t fDefaultCursor
 right pointing cursor
 
Bool_t fKeyNavigate
 kTRUE if arrow key navigation is on
 
TGLayoutHintsfMenuBarMoreLayout
 layout of the extra menu
 
TGPopupMenufMenuMore
 extra >> menu
 
TListfNeededSpace
 keeps trace of space needed for hidden menus
 
TListfOutLayouts
 keeps trace of layouts of hidden menus
 
Bool_t fStick
 stick mode (popup menu stays sticked on screen)
 
TListfTitles
 list of menu titles
 
TListfTrash
 garbage
 
Bool_t fWithExt
 indicates whether the >> menu is shown or not
 
- Protected Attributes inherited from TGCompositeFrame
Bool_t fLayoutBroken
 no layout manager is used
 
TGLayoutManagerfLayoutManager
 layout manager
 
TListfList
 container of frame elements
 
Bool_t fMapSubwindows
 kTRUE - map subwindows
 
Int_t fMustCleanup
 cleanup mode (see EFrameCleanup)
 
- Protected Attributes inherited from TGFrame
Pixel_t fBackground
 frame background color
 
Int_t fBorderWidth
 frame border width
 
Int_t fDNDState
 EDNDFlags.
 
UInt_t fEventMask
 currently active event mask
 
TGFrameElementfFE
 pointer to frame element
 
UInt_t fHeight
 frame height
 
UInt_t fMaxHeight
 maximal frame height
 
UInt_t fMaxWidth
 maximal frame width
 
UInt_t fMinHeight
 minimal frame height
 
UInt_t fMinWidth
 minimal frame width
 
UInt_t fOptions
 frame options
 
UInt_t fWidth
 frame width
 
Int_t fX
 frame x position
 
Int_t fY
 frame y position
 
- Protected Attributes inherited from TGWindow
UInt_t fEditDisabled
 flags used for "guibuilding"
 
TString fName
 name of the window used in SavePrimitive()
 
Bool_t fNeedRedraw
 kTRUE if window needs to be redrawn
 
const TGWindowfParent
 Parent window.
 
- Protected Attributes inherited from TGObject
TGClientfClient
 Connection to display server.
 
Handle_t fId
 X11/Win32 Window identifier.
 
- Protected Attributes inherited from TQObject
TListfListOfConnections
 list of signals from this object
 
TListfListOfSignals
 
Bool_t fSignalsBlocked
 list of connections to this object
 

Private Member Functions

 TGMenuBar (const TGMenuBar &)=delete
 
TGMenuBaroperator= (const TGMenuBar &)=delete
 

Friends

class TGPopupMenu
 

Additional Inherited Members

- Public Types inherited from TGWindow
enum  EEditMode {
  kEditEnable = 0 , kEditDisable = (1ULL << ( 0 )) , kEditDisableEvents = (1ULL << ( 1 )) , kEditDisableGrab = (1ULL << ( 2 )) ,
  kEditDisableLayout = (1ULL << ( 3 )) , kEditDisableResize = (1ULL << ( 4 )) , kEditDisableHeight = (1ULL << ( 5 )) , kEditDisableWidth = (1ULL << ( 6 )) ,
  kEditDisableBtnEnable = (1ULL << ( 7 )) , kEditDisableKeyEnable = (1ULL << ( 8 ))
}
 
enum  EStatusBits { kIsHtmlView = (1ULL << ( 14 )) }
 
- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) }
 
enum  EStatusBits {
  kCanDelete = (1ULL << ( 0 )) , kMustCleanup = (1ULL << ( 3 )) , kIsReferenced = (1ULL << ( 4 )) , kHasUUID = (1ULL << ( 5 )) ,
  kCannotPick = (1ULL << ( 6 )) , kNoContextMenu = (1ULL << ( 8 )) , kInvalidObject = (1ULL << ( 13 ))
}
 
- Protected Types inherited from TGFrame
enum  { kDeleteWindowCalled = (1ULL << ( 15 )) }
 
- Protected Types inherited from TObject
enum  { kOnlyPrepStep = (1ULL << ( 3 )) }
 
- Static Protected Member Functions inherited from TGFrame
static Time_t GetLastClick ()
 Get time of last mouse click.
 
- Static Protected Member Functions inherited from TQObject
static Int_t CheckConnectArgs (TQObject *sender, TClass *sender_class, const char *signal, TClass *receiver_class, const char *slot)
 Checking of consistency of sender/receiver methods/arguments.
 
static TString CompressName (const char *method_name)
 Removes "const" words and blanks from full (with prototype) method name and resolve any typedefs in the method signature.
 
static Bool_t ConnectToClass (const char *sender_class, const char *signal, TClass *receiver_class, void *receiver, const char *slot)
 This method allows to make connection from any object of the same class to the receiver object.
 
static Bool_t ConnectToClass (TQObject *sender, const char *signal, TClass *receiver_class, void *receiver, const char *slot)
 Create connection between sender and receiver.
 
- Static Protected Attributes inherited from TGCompositeFrame
static TGLayoutHintsfgDefaultHints = nullptr
 
- Static Protected Attributes inherited from TGFrame
static const TGGCfgBckgndGC = nullptr
 
static const TGGCfgBlackGC = nullptr
 
static Pixel_t fgBlackPixel = 0
 
static Window_t fgDbw = 0
 
static Int_t fgDbx = 0
 
static Int_t fgDby = 0
 
static Pixel_t fgDefaultFrameBackground = 0
 
static Pixel_t fgDefaultSelectedBackground = 0
 
static const TGGCfgHilightGC = nullptr
 
static Bool_t fgInit = kFALSE
 
static UInt_t fgLastButton = 0
 
static Time_t fgLastClick = 0
 
static const TGGCfgShadowGC = nullptr
 
static UInt_t fgUserColor = 0
 
static const TGGCfgWhiteGC = nullptr
 
static Pixel_t fgWhitePixel = 0
 
- Static Protected Attributes inherited from TGWindow
static Int_t fgCounter = 0
 counter of created windows in SavePrimitive
 
- Static Protected Attributes inherited from TQObject
static Bool_t fgAllSignalsBlocked = kFALSE
 flag used for suppression of signals
 

#include <TGMenu.h>

Inheritance diagram for TGMenuBar:
[legend]

Constructor & Destructor Documentation

◆ TGMenuBar() [1/2]

TGMenuBar::TGMenuBar ( const TGMenuBar )
privatedelete

◆ TGMenuBar() [2/2]

TGMenuBar::TGMenuBar ( const TGWindow p = nullptr,
UInt_t  w = 60,
UInt_t  h = 20,
UInt_t  options = kHorizontalFrame | kRaisedFrame 
)

Create a menu bar object.

Definition at line 126 of file TGMenu.cxx.

◆ ~TGMenuBar()

TGMenuBar::~TGMenuBar ( )
override

Delete menu bar object.

Removes also the hot keys from the main frame, so hitting them will not cause the menus to popup.

Definition at line 155 of file TGMenu.cxx.

Member Function Documentation

◆ AddFrameBefore()

void TGMenuBar::AddFrameBefore ( TGFrame f,
TGLayoutHints l = nullptr,
TGPopupMenu before = nullptr 
)
protectedvirtual

Private version of AddFrame for menubar, to make sure that we indeed only add TGMenuTitle objects to it.

If before is not 0 the menu will be added before it.

Definition at line 503 of file TGMenu.cxx.

◆ AddPopup() [1/3]

void TGMenuBar::AddPopup ( const char *  s,
TGPopupMenu menu,
TGLayoutHints l,
TGPopupMenu before = nullptr 
)
virtual

Add popup menu to menu bar.

If before is not 0 the menu will be added before it.

Definition at line 451 of file TGMenu.cxx.

◆ AddPopup() [2/3]

TGPopupMenu * TGMenuBar::AddPopup ( const TString s,
Int_t  padleft = 4,
Int_t  padright = 0,
Int_t  padtop = 0,
Int_t  padbottom = 0 
)
virtual

Add popup menu to menu bar.

Comment: This method is valid only for horizontal menu bars. The most common case is menu bar containing equidistant titles padding left side. TGMenuBar *bar; bar->AddPopup("title1", 10); bar->AddPopup("title2", 10); ...

To add equidistant titles padding right side padleft must be 0. TGMenuBar *bar; bar->AddPopup("title1", 0, 10); bar->AddPopup("title2", 0, 10); ...

This method guarantee automatic cleanup when menu bar is destroyed. Do not delete returned popup-menu

Definition at line 477 of file TGMenu.cxx.

◆ AddPopup() [3/3]

void TGMenuBar::AddPopup ( TGHotString s,
TGPopupMenu menu,
TGLayoutHints l,
TGPopupMenu before = nullptr 
)
virtual

Add popup menu to menu bar.

The hot string will be adopted by the menubar (actually the menu title) and deleted when possible. If before is not 0 the menu will be added before it.

Definition at line 418 of file TGMenu.cxx.

◆ AddTitle()

void TGMenuBar::AddTitle ( TGMenuTitle title,
TGLayoutHints l,
TGPopupMenu before = nullptr 
)
virtual

Add popup via created before menu title.

Definition at line 435 of file TGMenu.cxx.

◆ BindHotKey()

void TGMenuBar::BindHotKey ( Int_t  keycode,
Bool_t  on = kTRUE 
)
protectedvirtual

If on kTRUE bind hot keys, otherwise remove key binding.

Definition at line 383 of file TGMenu.cxx.

◆ BindKeys()

void TGMenuBar::BindKeys ( Bool_t  on = kTRUE)
protectedvirtual

If on kTRUE bind arrow, popup menu hot keys, otherwise remove key bindings.

Definition at line 337 of file TGMenu.cxx.

◆ BindMenu()

void TGMenuBar::BindMenu ( TGPopupMenu subMenu,
Bool_t  on 
)
protected

If on kTRUE bind subMenu hot keys, otherwise remove key bindings.

Definition at line 355 of file TGMenu.cxx.

◆ Class()

static TClass * TGMenuBar::Class ( )
static
Returns
TClass describing this class

◆ Class_Name()

static const char * TGMenuBar::Class_Name ( )
static
Returns
Name of this class

◆ Class_Version()

static constexpr Version_t TGMenuBar::Class_Version ( )
inlinestaticconstexpr
Returns
Version of this class

Definition at line 336 of file TGMenu.h.

◆ DeclFileName()

static const char * TGMenuBar::DeclFileName ( )
inlinestatic
Returns
Name of the file containing the class declaration

Definition at line 336 of file TGMenu.h.

◆ GetCurrent()

virtual TGMenuTitle * TGMenuBar::GetCurrent ( ) const
inlinevirtual

Definition at line 326 of file TGMenu.h.

◆ GetLastOnLeft()

TGFrameElement * TGMenuBar::GetLastOnLeft ( )

Returns the last visible menu title on the left of the '>>' in the menu bar.

Definition at line 268 of file TGMenu.cxx.

◆ GetPopup()

TGPopupMenu * TGMenuBar::GetPopup ( const char *  s)
virtual

Return popup menu with the specified name.

Returns 0 if menu is not found. Returnes menu can be used as "before" in AddPopup(). Don't use hot key (&) in name.

Definition at line 540 of file TGMenu.cxx.

◆ GetTitles()

virtual TList * TGMenuBar::GetTitles ( ) const
inlinevirtual

Definition at line 327 of file TGMenu.h.

◆ HandleButton()

Bool_t TGMenuBar::HandleButton ( Event_t event)
overridevirtual

Handle a mouse button event in a menubar.

Reimplemented from TGCompositeFrame.

Definition at line 623 of file TGMenu.cxx.

◆ HandleKey()

Bool_t TGMenuBar::HandleKey ( Event_t event)
overridevirtual

Handle keyboard events in a menu bar.

Reimplemented from TGCompositeFrame.

Definition at line 686 of file TGMenu.cxx.

◆ HandleMotion()

Bool_t TGMenuBar::HandleMotion ( Event_t event)
overridevirtual

Handle a mouse motion event in a menu bar.

Reimplemented from TGCompositeFrame.

Definition at line 590 of file TGMenu.cxx.

◆ IsA()

TClass * TGMenuBar::IsA ( ) const
inlineoverridevirtual
Returns
TClass describing current object

Reimplemented from TGHorizontalFrame.

Definition at line 336 of file TGMenu.h.

◆ Layout()

void TGMenuBar::Layout ( )
overridevirtual

Calculates whether the >> menu must be shown or not and which menu titles are hidden.

Reimplemented from TGCompositeFrame.

Definition at line 193 of file TGMenu.cxx.

◆ operator=()

TGMenuBar & TGMenuBar::operator= ( const TGMenuBar )
privatedelete

◆ PopupConnection()

void TGMenuBar::PopupConnection ( )

Connects the corresponding cascaded menu to the proper slots, according to the highlighted menu entry in '>>' menu.

Definition at line 289 of file TGMenu.cxx.

◆ RemovePopup()

TGPopupMenu * TGMenuBar::RemovePopup ( const char *  s)
virtual

Remove popup menu from menu bar.

Returned menu has to be deleted by the user, or can be re-used in another AddPopup(). Returns 0 if menu is not found. Don't use hot key (&) in name.

Definition at line 561 of file TGMenu.cxx.

◆ SavePrimitive()

void TGMenuBar::SavePrimitive ( std::ostream &  out,
Option_t option = "" 
)
overridevirtual

Save a menu bar widget as a C++ statement(s) on output stream out.

Reimplemented from TGHorizontalFrame.

Definition at line 2345 of file TGMenu.cxx.

◆ Streamer()

void TGMenuBar::Streamer ( TBuffer R__b)
overridevirtual

Stream an object of class TObject.

Reimplemented from TGHorizontalFrame.

◆ StreamerNVirtual()

void TGMenuBar::StreamerNVirtual ( TBuffer ClassDef_StreamerNVirtual_b)
inline

Definition at line 336 of file TGMenu.h.

Friends And Related Symbol Documentation

◆ TGPopupMenu

friend class TGPopupMenu
friend

Definition at line 284 of file TGMenu.h.

Member Data Documentation

◆ fCurrent

TGMenuTitle* TGMenuBar::fCurrent
protected

current menu title

Definition at line 287 of file TGMenu.h.

◆ fDefaultCursor

Cursor_t TGMenuBar::fDefaultCursor
protected

right pointing cursor

Definition at line 289 of file TGMenu.h.

◆ fKeyNavigate

Bool_t TGMenuBar::fKeyNavigate
protected

kTRUE if arrow key navigation is on

Definition at line 292 of file TGMenu.h.

◆ fMenuBarMoreLayout

TGLayoutHints* TGMenuBar::fMenuBarMoreLayout
protected

layout of the extra menu

Definition at line 294 of file TGMenu.h.

◆ fMenuMore

TGPopupMenu* TGMenuBar::fMenuMore
protected

extra >> menu

Definition at line 293 of file TGMenu.h.

◆ fNeededSpace

TList* TGMenuBar::fNeededSpace
protected

keeps trace of space needed for hidden menus

Definition at line 297 of file TGMenu.h.

◆ fOutLayouts

TList* TGMenuBar::fOutLayouts
protected

keeps trace of layouts of hidden menus

Definition at line 296 of file TGMenu.h.

◆ fStick

Bool_t TGMenuBar::fStick
protected

stick mode (popup menu stays sticked on screen)

Definition at line 290 of file TGMenu.h.

◆ fTitles

TList* TGMenuBar::fTitles
protected

list of menu titles

Definition at line 288 of file TGMenu.h.

◆ fTrash

TList* TGMenuBar::fTrash
protected

garbage

Definition at line 291 of file TGMenu.h.

◆ fWithExt

Bool_t TGMenuBar::fWithExt
protected

indicates whether the >> menu is shown or not

Definition at line 295 of file TGMenu.h.

Libraries for TGMenuBar:

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