Abstract interface to a histogram painter.

Definition at line 30 of file TVirtualHistPainter.h.

Public Member Functions
	TVirtualHistPainter ()

virtual	~TVirtualHistPainter ()

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)=0
	Computes distance from point (px,py) to the object.

virtual void	DrawPanel ()=0

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)=0
	Execute action corresponding to an event at (px,py).

virtual TList *	GetContourList (Double_t contour) const =0

virtual char *	GetObjectInfo (Int_t px, Int_t py) const =0
	Returns string containing info about the object at position (px,py).

virtual TList *	GetStack () const =0

virtual Bool_t	IsInside (Double_t x, Double_t y)=0

virtual Bool_t	IsInside (Int_t x, Int_t y)=0

virtual Int_t	MakeCuts (char *cutsopt)=0

virtual void	Paint (Option_t *option="")=0
	This method must be overridden if a class wants to paint itself.

virtual void	PaintStat (Int_t dostat, TF1 *fit)=0

virtual void	ProcessMessage (const char mess, const TObject obj)=0

virtual void	SetHighlight ()=0

virtual void	SetHistogram (TH1 *h)=0

virtual void	SetShowProjection (const char *option, Int_t nbins)=0

virtual void	SetStack (TList *stack)=0

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 TObject *	Clone (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 void	Delete (Option_t *option="")
	Delete this object.

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

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

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad for instance with: `gROOT->SetSelectedPad(gPad)`.

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

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=0)
	Execute method on this object with the given parameter string, e.g.

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

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

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

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

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

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

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

virtual Option_t *	GetOption () const

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

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

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

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

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.

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

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).

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.

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)

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

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

virtual void	Print (Option_t *option="") const
	This method must be overridden when a class wants to print itself.

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)

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

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

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

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

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=0, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.

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

Static Public Member Functions
static TVirtualHistPainter *	HistPainter (TH1 *obj)
	Static function returning a pointer to the current histogram painter.

static void	SetPainter (const char *painter)
	Static function to set an alternative histogram painter.

Static Public Member Functions inherited from TObject
static Long_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 Private Attributes
static TClass *	fgPainter = nullptr

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) }

Protected Types inherited from TObject
enum	{ kOnlyPrepStep = BIT(3) }

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 ()

#include <TVirtualHistPainter.h>

Inheritance diagram for TVirtualHistPainter:

[legend]

Constructor & Destructor Documentation

◆ TVirtualHistPainter()

TVirtualHistPainter::TVirtualHistPainter ( )

inline

Definition at line 36 of file TVirtualHistPainter.h.

◆ ~TVirtualHistPainter()

virtual TVirtualHistPainter::~TVirtualHistPainter ( )

inlinevirtual

Definition at line 37 of file TVirtualHistPainter.h.

Member Function Documentation

◆ DistancetoPrimitive()

virtual Int_t TVirtualHistPainter::DistancetoPrimitive	(	Int_t	px,
		Int_t	py
	)

pure virtual

Computes distance from point (px,py) to the object.

This member function must be implemented for each graphics primitive. This default function returns a big number (999999).

Reimplemented from TObject.

Implemented in TGLHistPainter, and THistPainter.

◆ DrawPanel()

virtual void TVirtualHistPainter::DrawPanel ( )

pure virtual

Implemented in TGLHistPainter, and THistPainter.

◆ ExecuteEvent()

virtual void TVirtualHistPainter::ExecuteEvent	(	Int_t	event,
		Int_t	px,
		Int_t	py
	)

pure virtual

Execute action corresponding to an event at (px,py).

This method must be overridden if an object can react to graphics events.

Reimplemented from TObject.

Implemented in TGLHistPainter, and THistPainter.

◆ GetContourList()

virtual TList * TVirtualHistPainter::GetContourList ( Double_t contour ) const

pure virtual

Implemented in TGLHistPainter, and THistPainter.

◆ GetObjectInfo()

virtual char * TVirtualHistPainter::GetObjectInfo	(	Int_t	px,
		Int_t	py
	)		const

pure virtual

Returns string containing info about the object at position (px,py).

This method is typically overridden by classes of which the objects can report peculiarities for different positions. Returned string will be re-used (lock in MT environment).

Reimplemented from TObject.

Implemented in TGLHistPainter, and THistPainter.

◆ GetStack()

virtual TList * TVirtualHistPainter::GetStack ( ) const

pure virtual

Implemented in TGLHistPainter, and THistPainter.

◆ HistPainter()

TVirtualHistPainter * TVirtualHistPainter::HistPainter ( TH1 * obj )

static

Static function returning a pointer to the current histogram painter.

The painter will paint the specified obj. If the histogram painter does not exist a default painter is created.

Definition at line 31 of file TVirtualHistPainter.cxx.

◆ IsInside() [1/2]

virtual Bool_t TVirtualHistPainter::IsInside	(	Double_t	x,
		Double_t	y
	)

pure virtual

Implemented in TGLHistPainter, and THistPainter.

◆ IsInside() [2/2]

virtual Bool_t TVirtualHistPainter::IsInside	(	Int_t	x,
		Int_t	y
	)

pure virtual

Implemented in TGLHistPainter, and THistPainter.

◆ MakeCuts()

virtual Int_t TVirtualHistPainter::MakeCuts ( char * cutsopt )

pure virtual

Implemented in TGLHistPainter, and THistPainter.

◆ Paint()

virtual void TVirtualHistPainter::Paint ( Option_t * option = "" )

pure virtual

This method must be overridden if a class wants to paint itself.

The difference between Paint() and Draw() is that when a object draws itself it is added to the display list of the pad in which it is drawn (and automatically redrawn whenever the pad is redrawn). While paint just draws the object without adding it to the pad display list.

Reimplemented from TObject.

Implemented in TGLHistPainter, and THistPainter.

◆ PaintStat()

virtual void TVirtualHistPainter::PaintStat	(	Int_t	dostat,
		TF1 *	fit
	)

pure virtual

Implemented in TGLHistPainter, and THistPainter.

◆ ProcessMessage()

virtual void TVirtualHistPainter::ProcessMessage	(	const char *	mess,
		const TObject *	obj
	)

pure virtual

Implemented in THistPainter, and TGLHistPainter.

◆ SetHighlight()

virtual void TVirtualHistPainter::SetHighlight ( )

pure virtual

Implemented in TGLHistPainter, and THistPainter.

◆ SetHistogram()

virtual void TVirtualHistPainter::SetHistogram ( TH1 * h )

pure virtual

Implemented in THistPainter, and TGLHistPainter.

◆ SetPainter()

void TVirtualHistPainter::SetPainter ( const char * painter )

static

Static function to set an alternative histogram painter.

Definition at line 56 of file TVirtualHistPainter.cxx.

◆ SetShowProjection()

virtual void TVirtualHistPainter::SetShowProjection	(	const char *	option,
		Int_t	nbins
	)

pure virtual

Implemented in TGLHistPainter, and THistPainter.

◆ SetStack()

virtual void TVirtualHistPainter::SetStack ( TList * stack )

pure virtual

Implemented in TGLHistPainter, and THistPainter.

Member Data Documentation

◆ fgPainter

TClass * TVirtualHistPainter::fgPainter = nullptr

staticprivate

Definition at line 33 of file TVirtualHistPainter.h.

Libraries for TVirtualHistPainter:

[legend]

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

hist/hist/inc/TVirtualHistPainter.h
hist/hist/src/TVirtualHistPainter.cxx

Public Member Functions

Static Public Member Functions

Static Private Attributes

Additional Inherited Members

Constructor & Destructor Documentation

◆ TVirtualHistPainter()

◆ ~TVirtualHistPainter()

Member Function Documentation

◆ DistancetoPrimitive()

◆ DrawPanel()

◆ ExecuteEvent()

◆ GetContourList()

◆ GetObjectInfo()

◆ GetStack()

◆ HistPainter()

◆ IsInside() [1/2]

◆ IsInside() [2/2]

◆ MakeCuts()

◆ Paint()

◆ PaintStat()

◆ ProcessMessage()

◆ SetHighlight()

◆ SetHistogram()

◆ SetPainter()

◆ SetShowProjection()

◆ SetStack()

Member Data Documentation

◆ fgPainter