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//
// Filename : StrokeAdvancedIterators.h
// Author(s) : Stephane Grabli
// Purpose : Iterators used to iterate over the elements of the Stroke
// Can't be used in python
// Date of creation : 01/07/2003
//
///////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) : Please refer to the COPYRIGHT file distributed
// with this source distribution.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
///////////////////////////////////////////////////////////////////////////////
#ifndef STROKEADVANCEDITERATORS_H
# define STROKEADVANCEDITERATORS_H
# include "Stroke.h"
namespace StrokeInternal {
class vertex_const_traits : public Const_traits<StrokeVertex*> {
public:
typedef std::deque<StrokeVertex*> vertex_container;
typedef vertex_container::const_iterator vertex_container_iterator ;
};
class vertex_nonconst_traits : public Nonconst_traits<StrokeVertex*> {
public:
typedef std::deque<StrokeVertex*> vertex_container; //! the vertices container
typedef vertex_container::iterator vertex_container_iterator ;
};
template<class Traits>
class vertex_iterator_base : public IteratorBase<Traits,BidirectionalIteratorTag_Traits>
{
public:
typedef vertex_iterator_base<Traits> Self;
protected:
typedef IteratorBase<Traits,BidirectionalIteratorTag_Traits> parent_class;
typedef typename Traits::vertex_container_iterator vertex_container_iterator;
typedef vertex_iterator_base<vertex_nonconst_traits> iterator;
typedef vertex_iterator_base<vertex_const_traits> const_iterator;
//protected:
public:
vertex_container_iterator _it;
vertex_container_iterator _begin;
vertex_container_iterator _end;
public:
friend class Stroke;
//friend class vertex_iterator;
inline vertex_iterator_base()
: parent_class()
{}
inline vertex_iterator_base(const iterator& iBrother)
: parent_class()
{_it = iBrother._it;_begin = iBrother._begin;_end = iBrother._end;}
inline vertex_iterator_base(const const_iterator& iBrother)
: parent_class()
{_it = iBrother._it;_begin = iBrother._begin;_end = iBrother._end;}
//protected://FIXME
public:
inline vertex_iterator_base(vertex_container_iterator it, vertex_container_iterator begin, vertex_container_iterator end)
: parent_class()
{
_it = it;
_begin = begin;
_end = end;
}
public:
virtual ~vertex_iterator_base() {}
virtual bool begin() const {return _it==_begin? true : false;}
virtual bool end() const {return _it==_end ? true : false;}
// operators
inline Self& operator++() // operator corresponding to ++i
{
++_it;
return *(this);
}
inline Self operator++(int) // opérateur correspondant à i++
{
Self tmp = *this; // C'est pour cela qu'on stocke la valeur
++_it; // dans un temporaire.
return tmp;
}
inline Self& operator--() // operator corresponding to ++i
{
--_it;
return *(this);
}
inline Self operator--(int) // opérateur correspondant à i++
{ // c.a.d qui renvoie la valeur *puis* incrémente.
Self tmp = *this; // C'est pour cela qu'on stocke la valeur
--_it; // dans un temporaire.
return tmp;
}
// comparibility
virtual bool operator!=(const Self& b) const
{
return (_it != b._it);
}
virtual bool operator==(const Self& b) const
{
return !(*this != b);
}
// dereferencing
virtual typename Traits::reference operator*() const {return *(_it);}
virtual typename Traits::pointer operator->() const { return &(operator*());}
/*! accessors */
inline vertex_container_iterator it() const {return _it;}
inline vertex_container_iterator getBegin() const {return _begin;}
inline vertex_container_iterator getEnd() const {return _end;}
};
} // end of namespace StrokeInternal
#endif // STROKEADVANCEDITERATORS_H
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