Legend Class Reference

slightly more convenient legend class More...

#include <computils.h>

Collaboration diagram for Legend:

Public Member Functions
	Legend ()
	Legend (double x1, double x2, double y1, double y2)
	Legend (const Legend &legend)
	~Legend ()
TLegend *	legend ()
size_t	size () const
double	TextSize () const
int	TextFont () const
double	height () const
double	width () const
void	AddEntry (TObject *tobj, const std::string &s, const std::string &type="p")
void	Draw ()

Private Attributes
TLegend *	m_leg
double	m_x [2]
double	m_y [2]
std::vector< TObject * >	m_obj
std::vector< std::string >	m_entries
std::vector< std::string >	m_type

Detailed Description

slightly more convenient legend class

Definition at line 350 of file computils.h.

Constructor & Destructor Documentation

Legend() [1/3]

Legend::Legend ( )

inline

Definition at line 354 of file computils.h.

           : m_leg(nullptr){ 
    m_x[0]=0.0;
    m_y[0]=0.0;
    m_x[1]=0.0;
    m_y[1]=0.0;
      } 

Legend() [2/3]

Legend::Legend ( double x1, double x2, double y1, double y2 )

inline

Definition at line 361 of file computils.h.

                                                    : m_leg(nullptr) { 
    m_x[0]=x1;
    m_y[0]=y1;
    m_x[1]=x2;
    m_y[1]=y2;
  }

Legend() [3/3]

Legend::Legend ( const Legend & legend )

inline

Definition at line 371 of file computils.h.

                              : m_leg(legend.m_leg), 
   m_x{legend.m_x[0], legend.m_x[1]}, 
   m_y{legend.m_y[0], legend.m_y[1]} { } 

~Legend()

Legend::~Legend ( )

inline

Definition at line 375 of file computils.h.

{ } 

Member Function Documentation

AddEntry()

void Legend::AddEntry ( TObject * tobj, const std::string & s, const std::string & type = "p" )

inline

Definition at line 391 of file computils.h.

                                                                              { 
    m_obj.push_back( tobj );
    m_entries.push_back( s );
    m_type.push_back( type );
  }

Draw()

void Legend::Draw ( )

inline

ha ! don't actually create the legend until we want to draw it, then we can determine the size etc automatically

Definition at line 397 of file computils.h.

              { 
    
 
    double y0 = 0;
 
    if ( m_y[0]>0.5 ) { 
      y0 = m_y[1] - m_entries.size()*0.05;
    }
    else { 
      y0 = m_y[0];
      m_y[1] = y0 + m_entries.size()*0.05;
    }
      
    m_leg = new TLegend( m_x[0], y0, m_x[1], m_y[1] );
 
#if 1
    m_leg->SetBorderSize(0);
    m_leg->SetTextFont(42);
    m_leg->SetTextSize(0.04);
    m_leg->SetFillStyle(3000);
    m_leg->SetFillColor(0);
    m_leg->SetLineColor(0);
#endif
    
    for ( size_t i=0 ; i<m_entries.size() ; i++ ) { 
      m_leg->AddEntry( m_obj[i], m_entries[i].c_str(), m_type[i].c_str() );
    }
 
    m_leg->Draw();
  }

height()

double Legend::height ( ) const

inline

Definition at line 387 of file computils.h.

{ return m_y[1]-m_y[0]; }

legend()

TLegend * Legend::legend ( )

inline

Definition at line 377 of file computils.h.

{ return m_leg; } 

size()

size_t Legend::size ( ) const

inline

Definition at line 379 of file computils.h.

                      { 
    return m_entries.size();
  }  

TextFont()

int Legend::TextFont ( ) const

inline

Definition at line 385 of file computils.h.

{ return m_leg->GetTextFont(); }

TextSize()

double Legend::TextSize ( ) const

inline

Definition at line 383 of file computils.h.

{ return m_leg->GetTextSize(); }

width()

double Legend::width ( ) const

inline

Definition at line 389 of file computils.h.

{ return m_x[1]-m_x[0]; }

Member Data Documentation

m_entries

std::vector<std::string> Legend::m_entries

private

Definition at line 439 of file computils.h.

m_leg

TLegend* Legend::m_leg

private

Definition at line 433 of file computils.h.

m_obj

std::vector<TObject*> Legend::m_obj

private

Definition at line 438 of file computils.h.

m_type

std::vector<std::string> Legend::m_type

private

Definition at line 440 of file computils.h.

m_x

double Legend::m_x[2]

private

Definition at line 435 of file computils.h.

m_y

double Legend::m_y[2]

private

Definition at line 436 of file computils.h.

---

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

• computils.h