A class that parses all parameters for TTree::Draw().

See TTree::Draw() for the format description.

Definition at line 33 of file TTreeDrawArgsParser.h.

Public Types
enum	EOutputType { kUNKNOWN, kEVENTLIST, kENTRYLIST, kPROFILE, kPROFILE2D, kGRAPH, kPOLYMARKER3D, kHISTOGRAM1D, kHISTOGRAM2D, kLISTOFGRAPHS, kLISTOFPOLYMARKERS3D, kHISTOGRAM3D }

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) }

Public Member Functions
	TTreeDrawArgsParser ()

	~TTreeDrawArgsParser ()
	Destructor. More...

Bool_t	Parse (const char varexp, const char selection, Option_t *option)
	Parses parameters from TTree::Draw(). More...

Bool_t	GetAdd () const

Int_t	GetDimension () const

Bool_t	GetShouldDraw () const

TString	GetExp () const

Double_t	GetIfSpecified (Int_t num, Double_t def) const

Int_t	GetNoParameters () const

Double_t	GetParameter (int num) const
	returns num-th parameter from brackets in the expression in case of an error (wrong number) returns 0.0 num - number of parameter (counted from 0) More...

TString	GetProofSelectorName () const
	Returns apropriate TSelector class name for proof for the object that is to be drawn assumes that Parse() method has been called before. More...

TString	GetObjectName () const

TString	GetObjectTitle () const
	Returns the desired plot title. More...

Bool_t	GetOptionSame () const

TObject *	GetOriginal () const

TString	GetSelection () const

TString	GetVarExp (Int_t num) const
	Returns the num-th variable string in case of an error prints an error message and returns an empty string. More...

TString	GetVarExp () const
	Returns the variable string, i.e. [var1[:var2[:var2[:var4]]]]. More...

Bool_t	IsSpecified (int num) const
	returns kTRUE if the num-th parameter was specified otherwise returns fFALSE in case of an error (wrong num) prints an error message and returns kFALSE. More...

void	SetObjectName (const char *s)

void	SetOriginal (TObject *o)

	ClassDef (TTreeDrawArgsParser, 0)

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	Clear (Option_t *="")

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 abstract method. More...

virtual void	Copy (TObject &object) const
	Copy this to obj. 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	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	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 *	GetName () const
	Returns name of object. 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 const char *	GetTitle () const
	Returns title of object. More...

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

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

virtual Bool_t	IsSortable () const

Bool_t	IsOnHeap () const

Bool_t	IsZombie () const

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

virtual void	ls (Option_t *option="") const
	The ls function lists the contents of a class on stdout. 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 void	Print (Option_t *option="") const
	This method must be overridden when a class wants to print itself. 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...

Static Public Member Functions
static Int_t	GetMaxDimension ()
	return fgMaxDimension (cannot be inline) More...

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...

Static Public Attributes
static Int_t	fgMaxDimension = 4

static Int_t	fgMaxParameters = 9

Protected Member Functions
void	ClearPrevious ()
	Resets all the variables of the class. More...

TTreeDrawArgsParser::EOutputType	DefineType ()
	Put the type of the draw result into fOutputType and return it. More...

Bool_t	SplitVariables (TString variables)
	Parse expression [var1 [:var2 [:var3] ...]], number of variables cannot be greater than fgMaxDimension. More...

Bool_t	ParseName (TString name)
	Syntax: More...

Bool_t	ParseOption ()
	Check if options contain some data important for choosing the type of the drawn object. More...

Bool_t	ParseVarExp ()
	Split variables and parse name and parameters in brackets. More...

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
TString	fExp

TString	fSelection

TString	fOption

Int_t	fDimension

TString	fVarExp [4]

Bool_t	fAdd

TString	fName

Int_t	fNoParameters

Bool_t	fParameterGiven [9]

Double_t	fParameters [9]

Bool_t	fShouldDraw

Bool_t	fOptionSame

Bool_t	fEntryList

TObject *	fOriginal

Bool_t	fDrawProfile

EOutputType	fOutputType

#include <TTreeDrawArgsParser.h>

Inheritance diagram for TTreeDrawArgsParser:

Collaboration diagram for TTreeDrawArgsParser:

Member Enumeration Documentation

enum TTreeDrawArgsParser::EOutputType

Enumerator
kUNKNOWN
kEVENTLIST
kENTRYLIST
kPROFILE
kPROFILE2D
kGRAPH
kPOLYMARKER3D
kHISTOGRAM1D
kHISTOGRAM2D
kLISTOFGRAPHS
kLISTOFPOLYMARKERS3D
kHISTOGRAM3D

Definition at line 36 of file TTreeDrawArgsParser.h.

Constructor & Destructor Documentation

TTreeDrawArgsParser::TTreeDrawArgsParser ( )

TTreeDrawArgsParser::~TTreeDrawArgsParser ( )

Destructor.

Definition at line 38 of file TTreeDrawArgsParser.cxx.

Member Function Documentation

TTreeDrawArgsParser::ClassDef	(	TTreeDrawArgsParser	,
		0
	)

void TTreeDrawArgsParser::ClearPrevious ( )

protected

Resets all the variables of the class.

Definition at line 53 of file TTreeDrawArgsParser.cxx.

Referenced by Parse().

TTreeDrawArgsParser::EOutputType TTreeDrawArgsParser::DefineType ( )

protected

Put the type of the draw result into fOutputType and return it.

Definition at line 266 of file TTreeDrawArgsParser.cxx.

Referenced by Parse().

Bool_t TTreeDrawArgsParser::GetAdd ( ) const

inline

Definition at line 90 of file TTreeDrawArgsParser.h.

Int_t TTreeDrawArgsParser::GetDimension ( ) const

inline

Definition at line 91 of file TTreeDrawArgsParser.h.

TString TTreeDrawArgsParser::GetExp ( ) const

inline

Definition at line 93 of file TTreeDrawArgsParser.h.

Double_t TTreeDrawArgsParser::GetIfSpecified	(	Int_t	num,
		Double_t	def
	)		const

num - parameter number
def - default value of the parameter returns the value of num-th parameter from the brackets in the variable expression if the parameter of that number wasn't specified returns def.

Definition at line 366 of file TTreeDrawArgsParser.cxx.

Int_t TTreeDrawArgsParser::GetMaxDimension ( )

static

return fgMaxDimension (cannot be inline)

Definition at line 45 of file TTreeDrawArgsParser.cxx.

Referenced by TProofDraw::ProcessSingle().

Int_t TTreeDrawArgsParser::GetNoParameters ( ) const

inline

Definition at line 95 of file TTreeDrawArgsParser.h.

TString TTreeDrawArgsParser::GetObjectName ( ) const

inline

Definition at line 98 of file TTreeDrawArgsParser.h.

Referenced by GetDrawArgs().

TString TTreeDrawArgsParser::GetObjectTitle ( ) const

Returns the desired plot title.

Definition at line 421 of file TTreeDrawArgsParser.cxx.

Bool_t TTreeDrawArgsParser::GetOptionSame ( ) const

inline

Definition at line 100 of file TTreeDrawArgsParser.h.

TObject* TTreeDrawArgsParser::GetOriginal ( ) const

inline

Definition at line 101 of file TTreeDrawArgsParser.h.

Double_t TTreeDrawArgsParser::GetParameter ( int num ) const

returns num-th parameter from brackets in the expression in case of an error (wrong number) returns 0.0 num - number of parameter (counted from 0)

Definition at line 350 of file TTreeDrawArgsParser.cxx.

TString TTreeDrawArgsParser::GetProofSelectorName ( ) const

Returns apropriate TSelector class name for proof for the object that is to be drawn assumes that Parse() method has been called before.

Definition at line 315 of file TTreeDrawArgsParser.cxx.

Referenced by GetDrawArgs().

TString TTreeDrawArgsParser::GetSelection ( ) const

inline

Definition at line 102 of file TTreeDrawArgsParser.h.

Bool_t TTreeDrawArgsParser::GetShouldDraw ( ) const

inline

Definition at line 92 of file TTreeDrawArgsParser.h.

TString TTreeDrawArgsParser::GetVarExp ( Int_t num ) const

Returns the num-th variable string in case of an error prints an error message and returns an empty string.

Definition at line 393 of file TTreeDrawArgsParser.cxx.

TString TTreeDrawArgsParser::GetVarExp ( ) const

Returns the variable string, i.e. [var1[:var2[:var2[:var4]]]].

Definition at line 405 of file TTreeDrawArgsParser.cxx.

Referenced by GetObjectTitle().

Bool_t TTreeDrawArgsParser::IsSpecified ( int num ) const

returns kTRUE if the num-th parameter was specified otherwise returns fFALSE in case of an error (wrong num) prints an error message and returns kFALSE.

Definition at line 380 of file TTreeDrawArgsParser.cxx.

Bool_t TTreeDrawArgsParser::Parse	(	const char *	varexp,
		const char *	selection,
		Option_t *	option
	)

Parses parameters from TTree::Draw().

varexp - Variable expression; see TTree::Draw() selection - selection expression; see TTree::Draw() option - Drawnig option; see TTree::Draw

Definition at line 237 of file TTreeDrawArgsParser.cxx.

Referenced by GetDrawArgs().

Bool_t TTreeDrawArgsParser::ParseName ( TString name )

protected

Syntax:

[' '*][[+][' '*]name[(num1 [, [num2] ] [, [num3] ] ...)]]

num's are floating point numbers sets the fileds fNoParameters, fParameterGiven, fParameters, fAdd, fName to apropriate values.

Returns kFALSE in case of an error.

Definition at line 131 of file TTreeDrawArgsParser.cxx.

Referenced by ParseVarExp().

Bool_t TTreeDrawArgsParser::ParseOption ( )

protected

Check if options contain some data important for choosing the type of the drawn object.

Definition at line 212 of file TTreeDrawArgsParser.cxx.

Referenced by Parse().

Bool_t TTreeDrawArgsParser::ParseVarExp ( )

protected

Split variables and parse name and parameters in brackets.

Definition at line 186 of file TTreeDrawArgsParser.cxx.

Referenced by Parse().

void TTreeDrawArgsParser::SetObjectName ( const char * s )

inline

Definition at line 106 of file TTreeDrawArgsParser.h.

void TTreeDrawArgsParser::SetOriginal ( TObject * o )

inline

Definition at line 107 of file TTreeDrawArgsParser.h.

Bool_t TTreeDrawArgsParser::SplitVariables ( TString variables )

protected

Parse expression [var1 [:var2 [:var3] ...]], number of variables cannot be greater than fgMaxDimension.

A colon which is followed by (or that follows) another semicolon is not regarded as a separator.

If there are more separating : than fgMaxDimension - 1 then all characters after (fgMaxDimension - 1)th colon is put into the last variable.

fDimension := <number of="" variables>="">
fVarExp[0] := <first variable="" string>="">
fVarExp[1] := <second variable="" string>=""> .. Returns kFALSE in case of an error.

Definition at line 95 of file TTreeDrawArgsParser.cxx.

Referenced by ParseVarExp().