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Diffstat (limited to 'source/blender/freestyle/intern/system/BaseIterator.h')
-rwxr-xr-x | source/blender/freestyle/intern/system/BaseIterator.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/source/blender/freestyle/intern/system/BaseIterator.h b/source/blender/freestyle/intern/system/BaseIterator.h new file mode 100755 index 00000000000..45cc19df4fe --- /dev/null +++ b/source/blender/freestyle/intern/system/BaseIterator.h @@ -0,0 +1,90 @@ +// +// Filename : BaseIterator.h +// Author(s) : Stephane Grabli +// Purpose : Classes defining the basic "Iterator" design pattern +// Date of creation : 18/03/2003 +// +/////////////////////////////////////////////////////////////////////////////// + + +// +// 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 BASEITERATOR_H +# define BASEITERATOR_H + +# include <iterator> + +// use for iterators defintions +template <class Element> +class Nonconst_traits; + +template <class Element> +class Const_traits { +public: + typedef Element value_type; + typedef const Element& reference; + typedef const Element* pointer; + typedef ptrdiff_t difference_type; + typedef Nonconst_traits<Element> Non_const_traits; +}; + +template <class Element> +class Nonconst_traits { +public: + typedef Element value_type; + typedef Element& reference; + typedef Element* pointer; + typedef ptrdiff_t difference_type; + typedef Nonconst_traits<Element> Non_const_traits; +}; + +class InputIteratorTag_Traits { +public: + typedef std::input_iterator_tag iterator_category; +}; + +class BidirectionalIteratorTag_Traits { +public: + typedef std::bidirectional_iterator_tag iterator_category; +}; + +template<class Traits, class IteratorTagTraits> +class IteratorBase +{ +public: + + virtual ~IteratorBase() {} + + virtual bool begin() const = 0; + virtual bool end() const = 0; + + typedef typename IteratorTagTraits::iterator_category iterator_category; + typedef typename Traits::value_type value_type; + typedef typename Traits::difference_type difference_type; + typedef typename Traits::pointer pointer; + typedef typename Traits::reference reference; + +protected: + + IteratorBase() {} +}; + +#endif // BASEITERATOR_H |