---

Node.hh

Go to the documentation of this file.

/*
    libpdf++: a C++ Free library to generate PDF file
    Copyright (C) 2002 Nestal Wan

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/
#ifndef __PDF_GRAPH_NODE_HEADER_INCLUDED__
#define __PDF_GRAPH_NODE_HEADER_INCLUDED__

#include <iosfwd>
#include <string>
#include <vector>

namespace pdf { namespace graph {

class CNode
{
public :
    virtual ~CNode( ) ;
    virtual std::ostream& Print( std::ostream& os ) const = 0 ;
} ;

class CNode2 : public CNode
{
private :

    double      m_x, m_y ;
    
    std::string m_op_code ;

public :
    CNode2( double x, double y, const std::string& op_code ) ;
    ~CNode2( ) ;
    
    std::ostream& Print( std::ostream& os ) const ;

private :
#ifdef _DEBUG
    bool IsValid( ) const ;
#endif
} ;

class CNodes : public CNode
{
private :
    std::vector<double> m_values ;       
    std::string m_op_code ;              

public :
    template <typename InputIt>
    CNodes( InputIt first, InputIt last, const std::string& op_code )
        : m_values( first, last ), m_op_code( op_code )
    {
    }
    
    ~CNodes( ) ;
    
    std::ostream& Print( std::ostream& os ) const ;

private :
#ifdef _DEBUG
    bool IsValid( ) const ;
#endif
} ;

class COperator : public CNode
{
private :
    std::string m_operator ;

public :
    COperator( const std::string& op ) ;
    ~COperator( ) ;
    
    std::ostream& Print( std::ostream& os ) const ;

private :
#ifdef _DEBUG
    bool IsValid( ) const ;
#endif
} ;

inline std::ostream& operator<<( std::ostream& os, const CNode& node )
{
    return node.Print( os ) ;
}

} } // end of namespace

#endif

---