libreoffice/cppu/inc/uno/mapping.hxx

/*************************************************************************
 *
 *  OpenOffice.org - a multi-platform office productivity suite
 *
 *  $RCSfile: mapping.hxx,v $
 *
 *  $Revision: 1.8 $
 *
 *  last change: $Author: rt $ $Date: 2005-09-08 08:41:49 $
 *
 *  The Contents of this file are made available subject to
 *  the terms of GNU Lesser General Public License Version 2.1.
 *
 *
 *    GNU Lesser General Public License Version 2.1
 *    =============================================
 *    Copyright 2005 by Sun Microsystems, Inc.
 *    901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License version 2.1, as published by the Free Software Foundation.
 *
 *    This library 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 for more details.
 *
 *    You should have received a copy of the GNU Lesser General Public
 *    License along with this library; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *    MA  02111-1307  USA
 *
 ************************************************************************/
#ifndef _UNO_MAPPING_HXX_
#define _UNO_MAPPING_HXX_

#ifndef _CPPU_MACROS_HXX_
#include <cppu/macros.hxx>
#endif
#ifndef _RTL_ALLOC_H_
#include <rtl/alloc.h>
#endif
#ifndef _RTL_USTRING_HXX_
#include <rtl/ustring.hxx>
#endif
#ifndef _UNO_MAPPING_H_
#include <uno/mapping.h>
#endif
#ifndef _COM_SUN_STAR_UNO_TYPE_HXX_
#include <com/sun/star/uno/Type.hxx>
#endif
#ifndef _COM_SUN_STAR_UNO_REFERENCE_HXX_
#include <com/sun/star/uno/Reference.hxx>
#endif


typedef struct _typelib_TypeDescription typelib_TypeDescription;
typedef struct _typelib_InterfaceTypeDescription typelib_InterfaceTypeDescription;
typedef struct _uno_Interface uno_Interface;
typedef struct _uno_Environment uno_Environment;

namespace com
{
namespace sun
{
namespace star
{
namespace uno
{

/** C++ wrapper for C uno_Mapping.

    @see uno_Mapping
*/
class Mapping
{
    uno_Mapping * _pMapping;

public:
    // these are here to force memory de/allocation to sal lib.
    /** @internal */
    inline static void * SAL_CALL operator new ( size_t nSize ) SAL_THROW( () )
        { return ::rtl_allocateMemory( nSize ); }
    /** @internal */
    inline static void SAL_CALL operator delete ( void * pMem ) SAL_THROW( () )
        { ::rtl_freeMemory( pMem ); }
    /** @internal */
    inline static void * SAL_CALL operator new ( size_t, void * pMem ) SAL_THROW( () )
        { return pMem; }
    /** @internal */
    inline static void SAL_CALL operator delete ( void *, void * ) SAL_THROW( () )
        {}

    /** Holds a mapping from the specified source to the specified destination by environment
        type names.

        @param rFrom        type name of source environment
        @param rTo          type name of destination environment
        @param rAddPurpose  additional purpose
    */
    inline Mapping(
        const ::rtl::OUString & rFrom, const ::rtl::OUString & rTo,
        const ::rtl::OUString & rAddPurpose = ::rtl::OUString() )
        SAL_THROW( () );

    /** Holds a mapping from the specified source to the specified destination.

        @param pFrom        source environment
        @param pTo          destination environment
        @param rAddPurpose  additional purpose
    */
    inline Mapping(
        uno_Environment * pFrom, uno_Environment * pTo,
        const ::rtl::OUString & rAddPurpose = ::rtl::OUString() )
        SAL_THROW( () );

    /** Constructor.

        @param pMapping another mapping
    */
    inline Mapping( uno_Mapping * pMapping = 0 ) SAL_THROW( () );

    /** Copy constructor.

        @param rMapping another mapping
    */
    inline Mapping( const Mapping & rMapping ) SAL_THROW( () );

    /** Destructor.
    */
    inline ~Mapping() SAL_THROW( () );

    /** Sets a given mapping.

        @param pMapping another mapping
        @return this mapping
    */
    inline Mapping & SAL_CALL operator = ( uno_Mapping * pMapping ) SAL_THROW( () );
    /** Sets a given mapping.

        @param rMapping another mapping
        @return this mapping
    */
    inline Mapping & SAL_CALL operator = ( const Mapping & rMapping ) SAL_THROW( () )
        { return operator = ( rMapping._pMapping ); }

    /** Provides a pointer to the C mapping. The returned mapping is NOT acquired!

        @return UNacquired C mapping
    */
    inline uno_Mapping * SAL_CALL get() const SAL_THROW( () )
        { return _pMapping; }

    /** Tests if a mapping is set.

        @return true if a mapping is set
    */
    inline sal_Bool SAL_CALL is() const SAL_THROW( () )
        { return (_pMapping != 0); }

    /** Releases a set mapping.
    */
    inline void SAL_CALL clear() SAL_THROW( () );

    /** Maps an interface from one environment to another.

        @param pInterface       source interface
        @param pTypeDescr       type description of interface
        @return                 mapped interface
    */
    inline void * SAL_CALL mapInterface( void * pInterface, typelib_InterfaceTypeDescription * pTypeDescr ) const SAL_THROW( () );
    /** Maps an interface from one environment to another.

        @param pInterface       source interface
        @param pTypeDescr       type description of interface
        @return                 mapped interface
    */
    inline void * SAL_CALL mapInterface( void * pInterface, typelib_TypeDescription * pTypeDescr ) const SAL_THROW( () )
        { return mapInterface( pInterface, (typelib_InterfaceTypeDescription *)pTypeDescr ); }

    /** Maps an interface from one environment to another.

        @param pInterface       source interface
        @param rType            type of interface
        @return                 mapped interface
    */
    inline void * SAL_CALL mapInterface(
        void * pInterface, const ::com::sun::star::uno::Type & rType ) const SAL_THROW( () );

    /** Maps an interface from one environment to another.

        @param ppOut            inout mapped interface
        @param pInterface       source interface
        @param pTypeDescr       type description of interface
    */
    inline void SAL_CALL mapInterface( void ** ppOut, void * pInterface, typelib_InterfaceTypeDescription * pTypeDescr ) const SAL_THROW( () )
        { (*_pMapping->mapInterface)( _pMapping, ppOut, pInterface, pTypeDescr ); }
    /** Maps an interface from one environment to another.

        @param ppOut            inout mapped interface
        @param pInterface       source interface
        @param pTypeDescr       type description of interface
    */
    inline void SAL_CALL mapInterface( void ** ppOut, void * pInterface, typelib_TypeDescription * pTypeDescr ) const SAL_THROW( () )
        { (*_pMapping->mapInterface)( _pMapping, ppOut, pInterface, (typelib_InterfaceTypeDescription *)pTypeDescr ); }

    /** Maps an interface from one environment to another.

        @param ppOut            inout mapped interface
        @param pInterface       source interface
        @param rType            type of interface to be mapped
     */
    inline void SAL_CALL mapInterface( void ** ppOut, void * pInterface, const ::com::sun::star::uno::Type & rType ) const SAL_THROW( () );
};
//__________________________________________________________________________________________________
inline Mapping::Mapping(
    const ::rtl::OUString & rFrom, const ::rtl::OUString & rTo, const ::rtl::OUString & rAddPurpose )
    SAL_THROW( () )
    : _pMapping( 0 )
{
    uno_getMappingByName( &_pMapping, rFrom.pData, rTo.pData, rAddPurpose.pData );
}
//__________________________________________________________________________________________________
inline Mapping::Mapping(
    uno_Environment * pFrom, uno_Environment * pTo, const ::rtl::OUString & rAddPurpose )
    SAL_THROW( () )
    : _pMapping( 0 )
{
    uno_getMapping( &_pMapping, pFrom, pTo, rAddPurpose.pData );
}
//__________________________________________________________________________________________________
inline Mapping::Mapping( uno_Mapping * pMapping ) SAL_THROW( () )
    : _pMapping( pMapping )
{
    if (_pMapping)
        (*_pMapping->acquire)( _pMapping );
}
//__________________________________________________________________________________________________
inline Mapping::Mapping( const Mapping & rMapping ) SAL_THROW( () )
    : _pMapping( rMapping._pMapping )
{
    if (_pMapping)
        (*_pMapping->acquire)( _pMapping );
}
//__________________________________________________________________________________________________
inline Mapping::~Mapping() SAL_THROW( () )
{
    if (_pMapping)
        (*_pMapping->release)( _pMapping );
}
//__________________________________________________________________________________________________
inline void Mapping::clear() SAL_THROW( () )
{
    if (_pMapping)
    {
        (*_pMapping->release)( _pMapping );
        _pMapping = 0;
    }
}
//__________________________________________________________________________________________________
inline Mapping & Mapping::operator = ( uno_Mapping * pMapping ) SAL_THROW( () )
{
    if (pMapping)
        (*pMapping->acquire)( pMapping );
    if (_pMapping)
        (*_pMapping->release)( _pMapping );
    _pMapping = pMapping;
    return *this;
}
//__________________________________________________________________________________________________
inline void Mapping::mapInterface(
    void ** ppOut, void * pInterface, const ::com::sun::star::uno::Type & rType ) const
    SAL_THROW( () )
{
    typelib_TypeDescription * pTD = 0;
    TYPELIB_DANGER_GET( &pTD, rType.getTypeLibType() );
    if (pTD)
    {
        (*_pMapping->mapInterface)( _pMapping, ppOut, pInterface, (typelib_InterfaceTypeDescription *)pTD );
        TYPELIB_DANGER_RELEASE( pTD );
    }
}
//__________________________________________________________________________________________________
inline void * Mapping::mapInterface(
    void * pInterface, typelib_InterfaceTypeDescription * pTypeDescr ) const
    SAL_THROW( () )
{
    void * pOut = 0;
    (*_pMapping->mapInterface)( _pMapping, &pOut, pInterface, pTypeDescr );
    return pOut;
}
//__________________________________________________________________________________________________
inline void * Mapping::mapInterface(
    void * pInterface, const ::com::sun::star::uno::Type & rType ) const
    SAL_THROW( () )
{
    void * pOut = 0;
    mapInterface( &pOut, pInterface, rType );
    return pOut;
}

/** Maps an binary C UNO interface to be used in the currently used compiler environment.

    @tplparam C interface type
    @param ppRet inout returned interface pointer
    @param pUnoI binary C UNO interface
    @return true if successful, false otherwise
*/
template< class C >
inline sal_Bool mapToCpp( Reference< C > * ppRet, uno_Interface * pUnoI ) SAL_THROW( () )
{
    Mapping aMapping(
        ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(UNO_LB_UNO) ),
        ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(CPPU_CURRENT_LANGUAGE_BINDING_NAME) ) );
    OSL_ASSERT( aMapping.is() );
    aMapping.mapInterface( (void **)ppRet, pUnoI, getCppuType( ppRet ) );
    return (0 != *ppRet);
}
/** Maps an UNO interface of the currently used compiler environment to binary C UNO.

    @tplparam C interface type
    @param ppRet inout returned interface pointer
    @param x interface reference
    @return true if successful, false otherwise
*/
template< class C >
inline sal_Bool mapToUno( uno_Interface ** ppRet, const Reference< C > & x ) SAL_THROW( () )
{
    Mapping aMapping(
        ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(CPPU_CURRENT_LANGUAGE_BINDING_NAME) ),
        ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(UNO_LB_UNO) ) );
    OSL_ASSERT( aMapping.is() );
    aMapping.mapInterface( (void **)ppRet, x.get(), getCppuType( &x ) );
    return (0 != *ppRet);
}

}
}
}
}

#endif