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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org 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 version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#ifndef ARY_STORE_S_ITERATOR_HXX
+#define ARY_STORE_S_ITERATOR_HXX
+
+// USED SERVICES
+#include <ary/getncast.hxx>
+#include "s_base.hxx"
+
+
+
+
+namespace ary
+{
+namespace stg
+{
+
+
+template <class> class const_iterator;
+template <class, class> class const_filter_iterator;
+
+
+/** A non-const iterator that runs on a ->Storage<>.
+
+ @collab Storage<>
+*/
+template <class ENTITY>
+class iterator : public std::iterator<std::forward_iterator_tag, ENTITY>
+{
+ public:
+ typedef iterator<ENTITY> self;
+ typedef typename Base<ENTITY>::impl_type impl_container;
+ typedef typename impl_container::const_iterator impl_type;
+
+ // OPERATORS
+ iterator()
+ : itImpl() {}
+ explicit iterator(
+ impl_type i_impl)
+ : itImpl(i_impl) {}
+ ~iterator() {}
+
+ bool operator==(
+ self i_other ) const
+ { return itImpl == i_other.itImpl; }
+ bool operator!=(
+ self i_other ) const
+ { return itImpl != i_other.itImpl; }
+ ENTITY & operator*() const { csv_assert(*itImpl != 0);
+ return *(*itImpl); }
+ self & operator++() { ++itImpl; return *this; }
+ self operator++(int) { return self(itImpl++); }
+
+ private:
+ friend class const_iterator<ENTITY>; // For const_iterator(iterator);
+ impl_type ImplIterator() const { return itImpl; }
+
+ // DATA
+ impl_type itImpl;
+};
+
+
+/** A const iterator that runs on a ->Storage<>.
+
+ @collab Storage<>
+*/
+template <class ENTITY>
+class const_iterator :
+ public std::iterator<std::forward_iterator_tag, const ENTITY>
+{
+ public:
+ typedef const_iterator<ENTITY> self;
+ typedef typename Base<ENTITY>::impl_type impl_container;
+ typedef typename impl_container::const_iterator impl_type;
+
+ // OPERATORS
+ const_iterator()
+ : itImpl() {}
+ explicit const_iterator(
+ impl_type i_impl)
+ : itImpl(i_impl) {}
+ const_iterator( // implicit conversions allowed
+ ::ary::stg::iterator<ENTITY> i_it )
+ : itImpl(i_it.ImplIterator()) {}
+ ~const_iterator() {}
+
+ bool operator==(
+ self i_other ) const
+ { return itImpl == i_other.itImpl; }
+ bool operator!=(
+ self i_other ) const
+ { return itImpl != i_other.itImpl; }
+ const ENTITY & operator*() const { csv_assert(*itImpl != 0);
+ return *(*itImpl); }
+ self & operator++() { ++itImpl; return *this; }
+ self operator++(int) { return self(itImpl++); }
+
+ private:
+ // DATA
+ impl_type itImpl;
+};
+
+
+
+
+
+/** A non const iterator that runs on a ->Storage<> and returns only
+ the elements of a specific type.
+
+ @tpl ENTITY
+ The element type of the ->Storage<>
+
+ @tpl FILTER
+ The actual type of the returned items. FILTER needs to be derived from
+ ENTITY.
+
+ @collab Storage<>
+*/
+template <class ENTITY, class FILTER>
+class filter_iterator :
+ public std::iterator<std::forward_iterator_tag, FILTER>
+{
+ public:
+ typedef filter_iterator<ENTITY,FILTER> self;
+ typedef ::ary::stg::iterator<ENTITY> impl_type;
+
+ // OPERATORS
+ filter_iterator()
+ : itCur() {}
+ explicit filter_iterator(
+ impl_type i_cur )
+ : itCur(i_cur) {}
+ ~filter_iterator() {}
+
+ bool operator==(
+ self i_other ) const
+ { return itCur == i_other.itCur; }
+ bool operator!=(
+ self i_other ) const
+ { return itCur != i_other.itCur; }
+ FILTER & operator*() const { csv_assert(IsValid());
+ return static_cast< FILTER& >(*itCur); }
+ self & operator++() { ++itCur;
+ return *this; }
+ self operator++(int) { return self(itCur++); }
+ bool IsValid() const { return ary::is_type<FILTER>(*itCur); }
+
+ private:
+ friend class const_filter_iterator<ENTITY,FILTER>; // For const_filter_iterator(filter_iterator);
+ impl_type ImplCur() const { return itCur; }
+
+ // DATA
+ impl_type itCur;
+};
+
+
+/** A const iterator that runs on a ->Storage<> and returns only
+ the elements of a specific type.
+
+ @tpl ENTITY
+ The element type of the ->Storage<>
+
+ @tpl FILTER
+ The actual type of the returned items. FILTER needs to be derived from
+ ENTITY.
+
+ @collab Storage<>
+*/
+template <class ENTITY, class FILTER>
+class const_filter_iterator :
+ public std::iterator<std::forward_iterator_tag, const FILTER>
+{
+ public:
+ typedef const_filter_iterator<ENTITY,FILTER> self;
+ typedef ::ary::stg::const_iterator<ENTITY> impl_type;
+
+ // OPERATORS
+ const_filter_iterator()
+ : itCur() {}
+ explicit const_filter_iterator(
+ impl_type i_cur )
+ : itCur(i_cur) {}
+ explicit const_filter_iterator( // implicit conversions allowed
+ filter_iterator<ENTITY,FILTER>
+ i_it )
+ : itCur(i_it.ImplCur()) {}
+ ~const_filter_iterator()
+ {}
+ bool operator==(
+ self i_other ) const
+ { return itCur == i_other.itCur; }
+ bool operator!=(
+ self i_other ) const
+ { return itCur != i_other.itCur; }
+ const FILTER & operator*() const { csv_assert(IsValid());
+ return static_cast< const FILTER& >(*itCur); }
+ self & operator++() { ++itCur;
+ return *this; }
+ self operator++(int) { return self(itCur++); }
+ bool IsValid() const { return ary::is_type<FILTER>(*itCur); }
+
+ private:
+ // DATA
+ impl_type itCur;
+};
+
+
+
+
+} // namespace stg
+} // namespace ary
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */