/*************************************************************************
 *
 * 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 _CONVERT_HXX
#define _CONVERT_HXX

#include <com/sun/star/uno/Sequence.hxx>
#include <map>

namespace com { namespace sun { namespace star { namespace uno
{
    class Any;
    class Type;
} } } }
namespace rtl { class OUString; }
class ConvertImpl;

namespace xforms
{

struct TypeLess
{
    bool operator()( const com::sun::star::uno::Type& rType1,
                     const com::sun::star::uno::Type& rType2 ) const
    { return rType1.getTypeName() < rType2.getTypeName(); }
};

class Convert
{
    typedef com::sun::star::uno::Type Type_t;
    typedef com::sun::star::uno::Sequence<com::sun::star::uno::Type> Types_t;
    typedef com::sun::star::uno::Any Any_t;

    // hold conversion objects
    typedef rtl::OUString (*fn_toXSD)( const Any_t& );
    typedef Any_t (*fn_toAny)( const rtl::OUString& );
    typedef std::pair<fn_toXSD,fn_toAny> Convert_t;
    typedef std::map<Type_t,Convert_t,TypeLess> Map_t;
    Map_t maMap;

    Convert();

    void init();

public:
    /** get/create Singleton class */
    static Convert& get();

    /// can we convert this type?
    bool hasType( const Type_t& );

    /// get list of convertable types
    Types_t getTypes();

    /// convert any to XML representation
    rtl::OUString toXSD( const Any_t& rAny );

    /// convert XML representation to Any of given type
    Any_t toAny( const rtl::OUString&, const Type_t& );

    /** translates the whitespaces in a given string, according
        to a given <type scope="com::sun::star::xsd">WhiteSpaceTreatment</type>.

        @param _rString
            the string to convert
        @param _nWhitespaceTreatment
            a constant from the <type scope="com::sun::star::xsd">WhiteSpaceTreatment</type> group, specifying
            how to handle whitespaces
        @return
            the converted string
    */
    static ::rtl::OUString convertWhitespace(
            const ::rtl::OUString& _rString,
            sal_Int16   _nWhitespaceTreatment
    );

    /** replace all occurences 0x08, 0x0A, 0x0D with 0x20
    */
    static ::rtl::OUString replaceWhitespace( const ::rtl::OUString& _rString );

    /** replace all sequences of 0x08, 0x0A, 0x0D, 0x20 with a single 0x20.
        also strip leading/trailing whitespace.
    */
    static ::rtl::OUString collapseWhitespace( const ::rtl::OUString& _rString );
};

} // namespace xforms

#endif