Logo ROOT   6.19/01
Reference Guide
TContextMenu Class Reference

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.

base_hsummenu.png

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

base_hsumdialog.png

Definition at line 40 of file TContextMenu.h.

Public Member Functions

 TContextMenu (const char *name, const char *title="Context sensitive popup menu")
 Create a context menu. More...
 
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=nullptr)
 Execute method on this object with the given parameter string, e.g. More...
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=nullptr)
 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 TBrowserGetBrowser ()
 
virtual TObjectGetCalledObject ()
 
virtual TContextMenuImpGetContextMenuImp ()
 
virtual TVirtualPadGetSelectedCanvas ()
 
virtual TClassMenuItemGetSelectedMenuItem ()
 
virtual TFunctionGetSelectedMethod ()
 
virtual TObjectGetSelectedObject ()
 
virtual TVirtualPadGetSelectedPad ()
 
virtual void Popup (Int_t x, Int_t y, TObject *obj, TVirtualPad *c=nullptr, TVirtualPad *p=nullptr)
 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 SetBrowser (TBrowser *b)
 
virtual void SetCalledObject (TObject *o)
 
virtual void SetCanvas (TVirtualPad *c)
 
virtual void SetMethod (TFunction *m)
 
virtual void SetNameTitle (const char *name, const char *title)
 Set all the TNamed parameters (name and title). More...
 
virtual void SetObject (TObject *o)
 
virtual void SetPad (TVirtualPad *p)
 
virtual void SetSelectedMenuItem (TClassMenuItem *mi)
 
- 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 copy ctor. More...
 
virtual ~TNamed ()
 TNamed destructor. More...
 
virtual void Clear (Option_t *option="")
 Set name and title to empty strings (""). More...
 
virtual TObjectClone (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 ls (Option_t *option="") const
 List TNamed name and title. More...
 
TNamedoperator= (const TNamed &rhs)
 TNamed assignment operator. More...
 
virtual void Print (Option_t *option="") const
 Print TNamed name and title. More...
 
virtual void SetName (const char *name)
 Set the name of the TNamed. More...
 
virtual void SetTitle (const char *title="")
 Set the title of the TNamed. More...
 
virtual Int_t Sizeof () const
 Return size of the TNamed part of the TObject. More...
 
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor. More...
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
virtual ~TObject ()
 TObject destructor. 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...
 
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...
 
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. 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 TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad). More...
 
virtual void Dump () const
 Dump contents of object on stdout. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
 
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute action corresponding to an event at (px,py). More...
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual const char * GetIconName () const
 Returns mime type name of object. More...
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
 
virtual Option_tGetOption () const
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out. More...
 
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. More...
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. 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...
 
void InvertBit (UInt_t f)
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory). More...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
R__ALWAYS_INLINE Bool_t IsOnHeap () const
 
R__ALWAYS_INLINE Bool_t IsZombie () const
 
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...
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. More...
 
voidoperator new (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz)
 
voidoperator new[] (size_t sz, void *vp)
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. 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...
 
void ResetBit (UInt_t f)
 
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...
 
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)
 
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 SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
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. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. 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...
 

Protected Member Functions

virtual void DisplayPopUp (Int_t x, Int_t y)
 
- 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). More...
 
void MakeZombie ()
 

Protected Attributes

TBrowserfBrowser
 
TObjectfCalledObject
 
TContextMenuImpfContextMenuImp
 
TVirtualPadfSelectedCanvas
 
TClassMenuItemfSelectedMenuItem
 
TFunctionfSelectedMethod
 Context menu system specific implementation. More...
 
TObjectfSelectedObject
 
TVirtualPadfSelectedPad
 
- Protected Attributes inherited from TNamed
TString fName
 
TString fTitle
 

Private Member Functions

 TContextMenu (const TContextMenu &)=delete
 
 TContextMenu ()
 
TContextMenuoperator= (const TContextMenu &)=delete
 

Friends

class TContextMenuImp
 

Additional Inherited Members

- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kInconsistent = 0x08000000,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
 
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5),
  kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 
- Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
 Return destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only 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() [1/3]

TContextMenu::TContextMenu ( const TContextMenu )
privatedelete

◆ TContextMenu() [2/3]

TContextMenu::TContextMenu ( )
private

◆ TContextMenu() [3/3]

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

Create a context menu.

Definition at line 58 of file TContextMenu.cxx.

◆ ~TContextMenu()

TContextMenu::~TContextMenu ( )
virtual

Destroy a context menu.

Definition at line 75 of file TContextMenu.cxx.

Member Function Documentation

◆ Action() [1/5]

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 92 of file TContextMenu.cxx.

◆ Action() [2/5]

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

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

Definition at line 208 of file TContextMenu.cxx.

◆ Action() [3/5]

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 115 of file TContextMenu.cxx.

◆ Action() [4/5]

void TContextMenu::Action ( TMethod method)
inline

Definition at line 71 of file TContextMenu.h.

◆ Action() [5/5]

void TContextMenu::Action ( TToggle toggle)
inline

Definition at line 72 of file TContextMenu.h.

◆ CreateArgumentTitle()

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

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

Definition at line 245 of file TContextMenu.cxx.

◆ CreateDialogTitle()

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

Create title for dialog box retrieving argument values.

Definition at line 265 of file TContextMenu.cxx.

◆ CreatePopupTitle()

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

Create title for popup menu.

Definition at line 282 of file TContextMenu.cxx.

◆ DisplayPopUp()

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

Definition at line 58 of file TContextMenu.h.

◆ Execute() [1/6]

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

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

"3.14,1,\"text"".

Reimplemented from TObject.

Definition at line 76 of file TContextMenu.h.

◆ Execute() [2/6]

virtual void TContextMenu::Execute ( TMethod method,
TObjArray params,
Int_t error = nullptr 
)
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 77 of file TContextMenu.h.

◆ Execute() [3/6]

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

Execute method with specified arguments for specified object.

Definition at line 309 of file TContextMenu.cxx.

◆ Execute() [4/6]

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

Execute method with specified arguments for specified object.

Definition at line 351 of file TContextMenu.cxx.

◆ Execute() [5/6]

void TContextMenu::Execute ( const char *  params)
inline

Definition at line 80 of file TContextMenu.h.

◆ Execute() [6/6]

void TContextMenu::Execute ( TObjArray params)
inline

Definition at line 81 of file TContextMenu.h.

◆ GetBrowser()

virtual TBrowser* TContextMenu::GetBrowser ( )
inlinevirtual

Definition at line 82 of file TContextMenu.h.

◆ GetCalledObject()

virtual TObject* TContextMenu::GetCalledObject ( )
inlinevirtual

Definition at line 87 of file TContextMenu.h.

◆ GetContextMenuImp()

virtual TContextMenuImp* TContextMenu::GetContextMenuImp ( )
inlinevirtual

Definition at line 83 of file TContextMenu.h.

◆ GetSelectedCanvas()

virtual TVirtualPad* TContextMenu::GetSelectedCanvas ( )
inlinevirtual

Definition at line 84 of file TContextMenu.h.

◆ GetSelectedMenuItem()

virtual TClassMenuItem* TContextMenu::GetSelectedMenuItem ( )
inlinevirtual

Definition at line 88 of file TContextMenu.h.

◆ GetSelectedMethod()

virtual TFunction* TContextMenu::GetSelectedMethod ( )
inlinevirtual

Definition at line 85 of file TContextMenu.h.

◆ GetSelectedObject()

virtual TObject* TContextMenu::GetSelectedObject ( )
inlinevirtual

Definition at line 86 of file TContextMenu.h.

◆ GetSelectedPad()

virtual TVirtualPad* TContextMenu::GetSelectedPad ( )
inlinevirtual

Definition at line 89 of file TContextMenu.h.

◆ operator=()

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

◆ Popup() [1/2]

void TContextMenu::Popup ( Int_t  x,
Int_t  y,
TObject obj,
TVirtualPad c = nullptr,
TVirtualPad p = nullptr 
)
virtual

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

Definition at line 400 of file TContextMenu.cxx.

◆ Popup() [2/2]

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 413 of file TContextMenu.cxx.

◆ SetBrowser()

virtual void TContextMenu::SetBrowser ( TBrowser b)
inlinevirtual

Definition at line 93 of file TContextMenu.h.

◆ SetCalledObject()

virtual void TContextMenu::SetCalledObject ( TObject o)
inlinevirtual

Definition at line 95 of file TContextMenu.h.

◆ SetCanvas()

virtual void TContextMenu::SetCanvas ( TVirtualPad c)
inlinevirtual

Definition at line 92 of file TContextMenu.h.

◆ SetMethod()

virtual void TContextMenu::SetMethod ( TFunction m)
inlinevirtual

Definition at line 94 of file TContextMenu.h.

◆ SetNameTitle()

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

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 97 of file TContextMenu.h.

◆ SetObject()

virtual void TContextMenu::SetObject ( TObject o)
inlinevirtual

Definition at line 98 of file TContextMenu.h.

◆ SetPad()

virtual void TContextMenu::SetPad ( TVirtualPad p)
inlinevirtual

Definition at line 99 of file TContextMenu.h.

◆ SetSelectedMenuItem()

virtual void TContextMenu::SetSelectedMenuItem ( TClassMenuItem mi)
inlinevirtual

Definition at line 96 of file TContextMenu.h.

Friends And Related Function Documentation

◆ TContextMenuImp

friend class TContextMenuImp
friend

Definition at line 42 of file TContextMenu.h.

Member Data Documentation

◆ fBrowser

TBrowser* TContextMenu::fBrowser
protected

Definition at line 56 of file TContextMenu.h.

◆ fCalledObject

TObject* TContextMenu::fCalledObject
protected

Definition at line 52 of file TContextMenu.h.

◆ fContextMenuImp

TContextMenuImp* TContextMenu::fContextMenuImp
protected

Definition at line 49 of file TContextMenu.h.

◆ fSelectedCanvas

TVirtualPad* TContextMenu::fSelectedCanvas
protected

Definition at line 54 of file TContextMenu.h.

◆ fSelectedMenuItem

TClassMenuItem* TContextMenu::fSelectedMenuItem
protected

Definition at line 53 of file TContextMenu.h.

◆ fSelectedMethod

TFunction* TContextMenu::fSelectedMethod
protected

Context menu system specific implementation.

Definition at line 50 of file TContextMenu.h.

◆ fSelectedObject

TObject* TContextMenu::fSelectedObject
protected

Definition at line 51 of file TContextMenu.h.

◆ fSelectedPad

TVirtualPad* TContextMenu::fSelectedPad
protected

Definition at line 55 of file TContextMenu.h.


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