TTreeDrawArgsParser

class TTreeDrawArgsParser : public TObject

    protected:

                                  void ClearPrevious()
      TTreeDrawArgsParser::EOutputType DefineType()
                                Bool_t ParseName(TString name)
                                Bool_t ParseOption()
                                Bool_t ParseVarExp()
                                Bool_t SplitVariables(TString variables)

    public:

                           TTreeDrawArgsParser()
                           TTreeDrawArgsParser(const TTreeDrawArgsParser&)
                           ~TTreeDrawArgsParser()
            static TClass* Class()
                    Bool_t GetAdd() const
                     Int_t GetDimension() const
                   TString GetExp() const
                  Double_t GetIfSpecified(Int_t num, Double_t def) const
              static Int_t GetMaxDimension()
                     Int_t GetNoParameters() const
                   TString GetObjectName() const
                   TString GetObjectTitle() const
                    Bool_t GetOptionSame() const
                  TObject* GetOriginal() const
                  Double_t GetParameter(int num) const
                   TString GetProofSelectorName() const
                   TString GetSelection() const
                    Bool_t GetShouldDraw() const
                   TString GetVarExp(Int_t num) const
                   TString GetVarExp() const
           virtual TClass* IsA() const
                    Bool_t IsSpecified(int num) const
      TTreeDrawArgsParser& operator=(const TTreeDrawArgsParser&)
                    Bool_t Parse(const char* varexp, const char* selection, Option_t* option)
                      void SetObjectName(const char* s)
                      void SetOriginal(TObject* o)
              virtual void ShowMembers(TMemberInspector& insp, char* parent)
              virtual void Streamer(TBuffer& b)
                      void StreamerNVirtual(TBuffer& b)

Data Members

    protected:

                               TString fExp                complete variable expression
                               TString fSelection          selection expression
                               TString fOption             draw options
                                 Int_t fDimension          dimension of the histogram/plot
                               TString fVarExp[4]          variable expression 0 - X, 1 - Y, 2 - Z, 3 - W
                                Bool_t fAdd                values should be added to an existing object
                               TString fName               histogram's/plot's name
                                 Int_t fNoParameters       if dimensions of the plot was specified
                                Bool_t fParameterGiven[9]  true if the parameter was given, otherwise false
                              Double_t fParameters[9]      parameters in brackets
                                Bool_t fShouldDraw         if to draw the plot
                                Bool_t fOptionSame         if option contained "same"
                              TObject* fOriginal           original plot (if it is to be reused)
                                Bool_t fDrawProfile        true if the options contain :"prof"
      TTreeDrawArgsParser::EOutputType fOutputType         type of the output

    public:

      static const TTreeDrawArgsParser::EOutputType kUNKNOWN              
      static const TTreeDrawArgsParser::EOutputType kEVENTLIST            
      static const TTreeDrawArgsParser::EOutputType kPROFILE              
      static const TTreeDrawArgsParser::EOutputType kPROFILE2D            
      static const TTreeDrawArgsParser::EOutputType kGRAPH                
      static const TTreeDrawArgsParser::EOutputType kPOLYMARKER3D         
      static const TTreeDrawArgsParser::EOutputType kHISTOGRAM1D          
      static const TTreeDrawArgsParser::EOutputType kHISTOGRAM2D          
      static const TTreeDrawArgsParser::EOutputType kLISTOFGRAPHS         
      static const TTreeDrawArgsParser::EOutputType kLISTOFPOLYMARKERS3D  
                                       static Int_t fgMaxDimension        = 4
                                       static Int_t fgMaxParameters       = 9

Class Description

                                                                      
 TTreeDrawArgsParser                                                  
                                                                      
 A class that parses all parameters for TTree::Draw().                
 See TTree::Draw() for the format description.                        
                                                                      

 Constructor - cleans all the class variables.

 Destructor.

 return fgMaxDimension (cannot be inline)

 Resets all the variables of the class.

 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.

 Syntax:
 [' '*][[\+][' '*]name[(num1 [, [num2] ] [, [num3] ] ...)]]
 num's are floating point numbers
 sets the fileds fNoParameters, fParameterGiven, fParameters, fAdd, fName
 to apropriate values.
 Returns fKALSE in case of an error.

 Split variables and parse name and parameters in brackets.

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

 Parses parameters from TTree::Draw().
 varexp - Variable expression; see TTree::Draw()
 selection - selection expression; see TTree::Draw()
 option - Drawnig option; see TTree::Draw

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

 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)

 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*.

 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.

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

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

 Returns the desired plot title.

Inline Functions

        TTreeDrawArgsParser::EOutputType DefineType()
                                  Bool_t GetAdd() const
                                   Int_t GetDimension() const
                                  Bool_t GetShouldDraw() const
                                 TString GetExp() const
                                   Int_t GetNoParameters() const
                                 TString GetObjectName() const
                                  Bool_t GetOptionSame() const
                                TObject* GetOriginal() const
                                 TString GetSelection() const
                                    void SetObjectName(const char* s)
                                    void SetOriginal(TObject* o)
                                 TClass* Class()
                                 TClass* IsA() const
                                    void ShowMembers(TMemberInspector& insp, char* parent)
                                    void Streamer(TBuffer& b)
                                    void StreamerNVirtual(TBuffer& b)
                     TTreeDrawArgsParser TTreeDrawArgsParser(const TTreeDrawArgsParser&)
                    TTreeDrawArgsParser& operator=(const TTreeDrawArgsParser&)