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/*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __FREESTYLE_STROKE_ADVANCED_ITERATORS_H__
#define __FREESTYLE_STROKE_ADVANCED_ITERATORS_H__
/** \file
* \ingroup freestyle
* \brief Iterators used to iterate over the elements of the Stroke. Can't be used in python
*/
#include "Stroke.h"
namespace Freestyle {
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);
}
/* Operator corresponding to i++, i.e. which returns the value *and then* increments.
* That's why we store the value in a temp.
*/
inline Self operator++(int)
{
Self tmp = *this;
++_it;
return tmp;
}
inline Self &operator--() // operator corresponding to --i
{
--_it;
return *(this);
}
inline Self operator--(int)
{
Self tmp = *this;
--_it;
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
} /* namespace Freestyle */
#endif // __FREESTYLE_STROKE_ADVANCED_ITERATORS_H__
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