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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_CONNECTIVITY_DBCHARSET_HXX
+#define INCLUDED_CONNECTIVITY_DBCHARSET_HXX
+
+#include <sal/config.h>
+
+#include <set>
+
+#include <rtl/textenc.h>
+#include <rtl/tencinfo.h>
+#include <rtl/ustring.hxx>
+#include <connectivity/dbtoolsdllapi.hxx>
+
+
+namespace dbtools
+{
+
+
+ //= OCharsetMap
+
+ /** is a class which translates between different charset representations.
+
+ <p>The set of recognized charsets is very limited: only the ones which are database relevant are
+ implemented at the moment</p>
+
+ <p>Possible representations are:
+ <ul>
+ <li><b>IANA names.</b>
+ Have a look at <A href="http://www.iana.org/assignments/character-sets">this document</A> for
+ more details</li>
+ <li><b>rtl_TextEncoding</b></li>
+ </ul>
+ </p>
+ */
+ class OOO_DLLPUBLIC_DBTOOLS OCharsetMap
+ {
+ protected:
+ typedef std::set<rtl_TextEncoding> TextEncBag;
+
+ TextEncBag m_aEncodings;
+
+ public:
+ class CharsetIterator;
+ friend class OCharsetMap::CharsetIterator;
+ typedef CharsetIterator iterator;
+ typedef CharsetIterator const_iterator;
+
+ OCharsetMap();
+ virtual ~OCharsetMap();
+
+ /** find the given text encoding in the map.
+ @return the <em>end</em> iterator if the encoding could not be found.
+ */
+ CharsetIterator find(const rtl_TextEncoding _eEncoding) const;
+ /** find the given IANA name in the map.
+ @return the <em>end</em> iterator if the IANA name could not be found.
+ */
+ CharsetIterator findIanaName(const OUString& _rIanaName) const;
+
+ /// get access to the first element of the charset collection
+ CharsetIterator begin() const;
+ /// get access to the (last + 1st) element of the charset collection
+ CharsetIterator end() const;
+
+ protected:
+ // needed because we want to call a virtual method during construction
+ void lateConstruct();
+ void ensureConstructed( ) const { if ( m_aEncodings.empty() ) const_cast< OCharsetMap* >( this )->lateConstruct(); }
+
+ virtual bool approveEncoding( const rtl_TextEncoding _eEncoding, const rtl_TextEncodingInfo& _rInfo ) const;
+ };
+
+
+ //- CharsetIteratorDerefHelper
+
+ class OOO_DLLPUBLIC_DBTOOLS CharsetIteratorDerefHelper
+ {
+ friend class OCharsetMap::CharsetIterator;
+
+ rtl_TextEncoding m_eEncoding;
+ OUString m_aIanaName;
+
+ public:
+ CharsetIteratorDerefHelper(const CharsetIteratorDerefHelper& _rSource);
+
+ rtl_TextEncoding getEncoding() const { return m_eEncoding; }
+ const OUString& getIanaName() const { return m_aIanaName; }
+
+ protected:
+ CharsetIteratorDerefHelper( const rtl_TextEncoding _eEncoding, const OUString& _rIanaName );
+
+ };
+
+
+ //- OCharsetMap::CharsetIterator
+
+ class OOO_DLLPUBLIC_DBTOOLS OCharsetMap::CharsetIterator
+ {
+ friend class OCharsetMap;
+
+ friend OOO_DLLPUBLIC_DBTOOLS bool operator==(const CharsetIterator& lhs, const CharsetIterator& rhs);
+ friend bool operator!=(const CharsetIterator& lhs, const CharsetIterator& rhs) { return !(lhs == rhs); }
+
+// friend sal_Int32 operator-(const CharsetIterator& lhs, const CharsetIterator& rhs);
+
+ protected:
+ const OCharsetMap* m_pContainer;
+ OCharsetMap::TextEncBag::const_iterator m_aPos;
+
+ public:
+ CharsetIteratorDerefHelper operator*() const;
+ // no -> operator
+ // this would require us to a) store CharsetIteratorDerefHelper instances ourself so that we
+ // can return a pointer or b) introduce a -> operator on the CharsetIteratorDerefHelper, too.
+
+ /// prefix increment
+ const CharsetIterator& operator++();
+
+ /// prefix decrement
+ const CharsetIterator& operator--();
+
+ protected:
+ CharsetIterator(const OCharsetMap* _pContainer, OCharsetMap::TextEncBag::const_iterator const & _aPos );
+ };
+
+
+} // namespace dbtools
+
+
+#endif // INCLUDED_CONNECTIVITY_DBCHARSET_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */