This class provides an interface to context sensitive popup menus.

These menus pop up when the user hits the right mouse button, and are destroyed when the menu pops downs.

Context Menus are automatically generated by ROOT using the following convention: if the string // *MENU* is found in the comment field of a member function. This function will be added to the list of items in the menu.

The picture below shows a canvas with a pop-up menu.

The picture below shows a canvas with a pop-up menu and a dialog box.

Definition at line 44 of file TContextMenu.h.

Public Member Functions
	TContextMenu (const char name, const char title="Context sensitive popup menu")

virtual	~TContextMenu ()
	Destroy a context menu. More...

virtual void	Action (TObject object, TMethod method)
	Action to be performed when this menu item is selected. More...

virtual void	Action (TObject object, TToggle toggle)
	Action to be performed when this toggle menu item is selected. More...

virtual void	Action (TClassMenuItem *classmenuitem)
	Action to be performed when this menu item is selected. More...

void	Action (TMethod *method)

void	Action (TToggle *toggle)

virtual const char *	CreateArgumentTitle (TMethodArg *argument)
	Create string describing argument (for use in dialog box). More...

virtual const char *	CreateDialogTitle (TObject object, TFunction method)
	Create title for dialog box retrieving argument values. More...

virtual const char *	CreatePopupTitle (TObject *object)
	Create title for popup menu. More...

virtual void	Execute (const char method, const char params, Int_t *error=0)
	Execute method on this object with the given parameter string, e.g. More...

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray. More...

virtual void	Execute (TObject object, TFunction method, const char *params)
	Execute method with specified arguments for specified object. More...

virtual void	Execute (TObject object, TFunction method, TObjArray *params)
	Execute method with specified arguments for specified object. More...

void	Execute (const char *params)

void	Execute (TObjArray *params)

virtual TBrowser *	GetBrowser ()

virtual TContextMenuImp *	GetContextMenuImp ()

virtual TVirtualPad *	GetSelectedCanvas ()

virtual TFunction *	GetSelectedMethod ()

virtual TObject *	GetSelectedObject ()

virtual TObject *	GetCalledObject ()

virtual TClassMenuItem *	GetSelectedMenuItem ()

virtual TVirtualPad *	GetSelectedPad ()

virtual void	Popup (Int_t x, Int_t y, TObject obj, TVirtualPad c=0, TVirtualPad *p=0)
	Popup context menu at given location in canvas c and pad p for selected object. More...

virtual void	Popup (Int_t x, Int_t y, TObject obj, TBrowser b)
	Popup context menu at given location in browser b for selected object. More...

virtual void	SetCanvas (TVirtualPad *c)

virtual void	SetBrowser (TBrowser *b)

virtual void	SetMethod (TFunction *m)

virtual void	SetCalledObject (TObject *o)

virtual void	SetSelectedMenuItem (TClassMenuItem *mi)

virtual void	SetNameTitle (const char name, const char title)
	Change (i.e. set) all the TNamed parameters (name and title). More...

virtual void	SetObject (TObject *o)

virtual void	SetPad (TVirtualPad *p)

Public Member Functions inherited from TNamed
	TNamed ()

	TNamed (const char name, const char title)

	TNamed (const TString &name, const TString &title)

	TNamed (const TNamed &named)

TNamed &	operator= (const TNamed &rhs)
	TNamed assignment operator. More...

virtual	~TNamed ()

virtual void	Clear (Option_t *option="")
	Set name and title to empty strings (""). More...

virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility. More...

virtual Int_t	Compare (const TObject *obj) const
	Compare two TNamed objects. More...

virtual void	Copy (TObject &named) const
	Copy this to obj. More...

virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer. More...

virtual const char *	GetName () const
	Returns name of object. More...

virtual const char *	GetTitle () const
	Returns title of object. More...

virtual ULong_t	Hash () const
	Return hash value for this object. More...

virtual Bool_t	IsSortable () const

virtual void	SetName (const char *name)
	Change (i.e. More...

virtual void	SetTitle (const char *title="")
	Change (i.e. set) the title of the TNamed. More...

virtual void	ls (Option_t *option="") const
	List TNamed name and title. More...

virtual void	Print (Option_t *option="") const
	Print TNamed name and title. More...

virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject. More...

Public Member Functions inherited from TObject
	TObject ()

	TObject (const TObject &object)
	TObject copy ctor. More...

TObject &	operator= (const TObject &rhs)
	TObject assignment operator. More...

virtual	~TObject ()
	TObject destructor. More...

virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad. More...

virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action. More...

virtual const char *	ClassName () const
	Returns name of class to which the object belongs. More...

virtual void	Delete (Option_t *option="")
	Delete this object. More...

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object. More...

virtual void	Draw (Option_t *option="")
	Default Draw method for all objects. More...

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs. More...

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current pad. More...

virtual void	Dump () const
	Dump contents of object on stdout. More...

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py). More...

virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes. More...

virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes. More...

virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object. More...

virtual UInt_t	GetUniqueID () const
	Return the unique object id. More...

virtual const char *	GetIconName () const
	Returns mime type name of object. More...

virtual Option_t *	GetOption () const

virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py). More...

virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out. More...

virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname". More...

virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl. More...

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas. More...

virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...

virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory). More...

Bool_t	IsOnHeap () const

Bool_t	IsZombie () const

virtual Bool_t	Notify ()
	This method must be overridden to handle object notification. More...

virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself. More...

virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list. More...

virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory. More...

virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list. More...

virtual void	SaveAs (const char filename="", Option_t option="") const
	Save this object in the file specified by filename. More...

virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out". More...

virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object. More...

virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id. More...

virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory. More...

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory. More...

void *	operator new (size_t sz)

void *	operator new[] (size_t sz)

void *	operator new (size_t sz, void *vp)

void *	operator new[] (size_t sz, void *vp)

void	operator delete (void *ptr)
	Operator delete. More...

void	operator delete[] (void *ptr)
	Operator delete []. More...

void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f. More...

void	SetBit (UInt_t f)

void	ResetBit (UInt_t f)

Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

void	InvertBit (UInt_t f)

virtual void	Info (const char method, const char msgfmt,...) const
	Issue info message. More...

virtual void	Warning (const char method, const char msgfmt,...) const
	Issue warning message. More...

virtual void	Error (const char method, const char msgfmt,...) const
	Issue error message. More...

virtual void	SysError (const char method, const char msgfmt,...) const
	Issue system error message. More...

virtual void	Fatal (const char method, const char msgfmt,...) const
	Issue fatal error message. More...

void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...

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). More...

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete. More...

Protected Member Functions
virtual void	DisplayPopUp (Int_t x, Int_t y)

Protected Member Functions inherited from TObject
void	MakeZombie ()

virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected). More...

Protected Attributes
TContextMenuImp *	fContextMenuImp

TFunction *	fSelectedMethod
	Context menu system specific implementation. More...

TObject *	fSelectedObject

TObject *	fCalledObject

TClassMenuItem *	fSelectedMenuItem

TVirtualPad *	fSelectedCanvas

TVirtualPad *	fSelectedPad

TBrowser *	fBrowser

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

Private Member Functions
	TContextMenu (const TContextMenu &)

TContextMenu &	operator= (const TContextMenu &)

	TContextMenu ()

Friends
class	TContextMenuImp

Additional Inherited Members
Public Types inherited from TObject
enum	EStatusBits { kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13) }

enum	{ kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }

enum	{ kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }

Static Public Member Functions inherited from TObject
static Long_t	GetDtorOnly ()
	Return destructor only flag. More...

static void	SetDtorOnly (void *obj)
	Set destructor only flag. More...

static Bool_t	GetObjectStat ()
	Get status of object stat flag. More...

static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable. More...

#include <TContextMenu.h>

Inheritance diagram for TContextMenu:

[legend]

Constructor & Destructor Documentation

TContextMenu::TContextMenu ( const TContextMenu & )

private

TContextMenu::TContextMenu ( )

private

TContextMenu::TContextMenu	(	const char *	name,
		const char *	title = `"Context sensitive popup menu"`
	)

TContextMenu::~TContextMenu ( )

virtual

Destroy a context menu.

Definition at line 74 of file TContextMenu.cxx.

Member Function Documentation

void TContextMenu::Action	(	TObject *	object,
		TMethod *	method
	)

virtual

Action to be performed when this menu item is selected.

If the selected method requires arguments we popup an automatically generated dialog, otherwise the method is directly executed.

Definition at line 91 of file TContextMenu.cxx.

Referenced by TRootContextMenu::ProcessMessage().

void TContextMenu::Action	(	TObject *	object,
		TToggle *	toggle
	)

virtual

Action to be performed when this toggle menu item is selected.

Definition at line 207 of file TContextMenu.cxx.

void TContextMenu::Action ( TClassMenuItem * menuitem )

virtual

Action to be performed when this menu item is selected.

If the selected method requires arguments we popup an automatically generated dialog, otherwise the method is directly executed.

Definition at line 114 of file TContextMenu.cxx.

void TContextMenu::Action ( TMethod * method )

inline

Definition at line 75 of file TContextMenu.h.

Referenced by Action().

void TContextMenu::Action ( TToggle * toggle )

inline

Definition at line 76 of file TContextMenu.h.

Referenced by Action().

const char * TContextMenu::CreateArgumentTitle ( TMethodArg * argument )

virtual

Create string describing argument (for use in dialog box).

Definition at line 244 of file TContextMenu.cxx.

Referenced by TRootContextMenu::Dialog().

const char * TContextMenu::CreateDialogTitle	(	TObject *	object,
		TFunction *	method
	)

virtual

Create title for dialog box retrieving argument values.

Definition at line 264 of file TContextMenu.cxx.

Referenced by TRootContextMenu::Dialog().

const char * TContextMenu::CreatePopupTitle ( TObject * object )

virtual

Create title for popup menu.

Definition at line 281 of file TContextMenu.cxx.

Referenced by TRootContextMenu::CreateMenu().

virtual void TContextMenu::DisplayPopUp	(	Int_t	x,
		Int_t	y
	)

inlineprotectedvirtual

Definition at line 62 of file TContextMenu.h.

Referenced by Popup().

virtual void TContextMenu::Execute	(	const char *	method,
		const char *	params,
		Int_t *	error = `0`
	)

inlinevirtual

Execute method on this object with the given parameter string, e.g.

"3.14,1,\"text"".

Reimplemented from TObject.

Definition at line 80 of file TContextMenu.h.

Referenced by Action(), and TRootContextMenu::ProcessMessage().

virtual void TContextMenu::Execute	(	TMethod *	method,
		TObjArray *	params,
		Int_t *	error = `0`
	)

inlinevirtual

Execute method on this object with parameters stored in the TObjArray.

The TObjArray should contain an argv vector like:

argv[0] ... argv[n] = the list of TObjString parameters

Reimplemented from TObject.

Definition at line 81 of file TContextMenu.h.

void TContextMenu::Execute	(	TObject *	object,
		TFunction *	method,
		const char *	params
	)

virtual

Execute method with specified arguments for specified object.

Definition at line 308 of file TContextMenu.cxx.

void TContextMenu::Execute	(	TObject *	object,
		TFunction *	method,
		TObjArray *	params
	)

virtual

Execute method with specified arguments for specified object.

Definition at line 350 of file TContextMenu.cxx.

void TContextMenu::Execute ( const char * params )

inline

Definition at line 84 of file TContextMenu.h.

Referenced by Execute().

void TContextMenu::Execute ( TObjArray * params )

inline

Definition at line 85 of file TContextMenu.h.

Referenced by Execute().

virtual TBrowser* TContextMenu::GetBrowser ( )

inlinevirtual

Definition at line 86 of file TContextMenu.h.

Referenced by TRootContextMenu::Dialog(), and TRootContextMenu::DisplayPopup().

virtual TObject* TContextMenu::GetCalledObject ( )

inlinevirtual

Definition at line 91 of file TContextMenu.h.

virtual TContextMenuImp* TContextMenu::GetContextMenuImp ( )

inlinevirtual

Definition at line 87 of file TContextMenu.h.

Referenced by TGSplitTool::HandleButton().

virtual TVirtualPad* TContextMenu::GetSelectedCanvas ( )

inlinevirtual

Definition at line 88 of file TContextMenu.h.

Referenced by TRootContextMenu::Dialog(), TRootContextMenu::DisplayPopup(), and TRootContextMenu::RecursiveRemove().

virtual TClassMenuItem* TContextMenu::GetSelectedMenuItem ( )

inlinevirtual

Definition at line 92 of file TContextMenu.h.

Referenced by TRootContextMenu::Dialog(), and TRootDialog::GetParameters().

virtual TFunction* TContextMenu::GetSelectedMethod ( )

inlinevirtual

Definition at line 89 of file TContextMenu.h.

Referenced by TRootContextMenu::OnlineHelp().

virtual TObject* TContextMenu::GetSelectedObject ( )

inlinevirtual

Definition at line 90 of file TContextMenu.h.

Referenced by TRootContextMenu::DisplayPopup(), TRootDialog::GetParameters(), TRootContextMenu::OnlineHelp(), and TRootContextMenu::RecursiveRemove().

virtual TVirtualPad* TContextMenu::GetSelectedPad ( )

inlinevirtual

Definition at line 93 of file TContextMenu.h.

Referenced by TRootContextMenu::DisplayPopup(), TRootContextMenu::ProcessMessage(), and TRootContextMenu::RecursiveRemove().

TContextMenu& TContextMenu::operator= ( const TContextMenu & )

private

void TContextMenu::Popup	(	Int_t	x,
		Int_t	y,
		TObject *	obj,
		TVirtualPad *	c = `0`,
		TVirtualPad *	p = `0`
	)

virtual

Popup context menu at given location in canvas c and pad p for selected object.

Definition at line 399 of file TContextMenu.cxx.

Referenced by TGFileBrowser::Clicked(), TGSplitTool::HandleButton(), TEveGedNameTextButton::HandleButton(), TCanvas::HandleInput(), TGLLogicalShape::InvokeContextMenu(), TEveGListTreeEditorFrame::ItemClicked(), TSessionOutputFrame::OnElementClicked(), TRootBrowserLite::ProcessMessage(), TTreeViewer::ProcessMessage(), and TEveContextMenu::SetupAndPopup().

void TContextMenu::Popup	(	Int_t	x,
		Int_t	y,
		TObject *	obj,
		TBrowser *	b
	)

virtual

Popup context menu at given location in browser b for selected object.

Definition at line 412 of file TContextMenu.cxx.

virtual void TContextMenu::SetBrowser ( TBrowser * b )

inlinevirtual

Definition at line 97 of file TContextMenu.h.

Referenced by Popup().

virtual void TContextMenu::SetCalledObject ( TObject * o )

inlinevirtual

Definition at line 99 of file TContextMenu.h.

Referenced by Action().

virtual void TContextMenu::SetCanvas ( TVirtualPad * c )

inlinevirtual

Definition at line 96 of file TContextMenu.h.

Referenced by Popup(), and TRootContextMenu::RecursiveRemove().

virtual void TContextMenu::SetMethod ( TFunction * m )

inlinevirtual

Definition at line 98 of file TContextMenu.h.

Referenced by Action(), and TRootContextMenu::HandleButton().

virtual void TContextMenu::SetNameTitle	(	const char *	name,
		const char *	title
	)

inlinevirtual

Change (i.e. set) all the TNamed parameters (name and title).

WARNING: if the name is changed and the object is a member of a THashTable or THashList container the container must be Rehash()'ed after SetName(). For example the list of objects in the current directory is a THashList.

Reimplemented from TNamed.

Definition at line 101 of file TContextMenu.h.

virtual void TContextMenu::SetObject ( TObject * o )

inlinevirtual

Definition at line 102 of file TContextMenu.h.

Referenced by Popup(), and TRootContextMenu::RecursiveRemove().

virtual void TContextMenu::SetPad ( TVirtualPad * p )

inlinevirtual

Definition at line 103 of file TContextMenu.h.

Referenced by Popup(), and TRootContextMenu::RecursiveRemove().

virtual void TContextMenu::SetSelectedMenuItem ( TClassMenuItem * mi )

inlinevirtual