/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
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 *
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 *
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 *
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 * 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.
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 ************************************************************************/

#ifndef _DDEIMP_HXX
#define _DDEIMP_HXX

#include <windows.h>
#include <ddeml.h>

#include <tools/string.hxx>
#include <tools/shl.hxx>
#include <boost/noncopyable.hpp>
#include <vector>

class DdeService;
class DdeTopic;
class DdeItem;

// ----------------
// - Conversation -
// ----------------

struct Conversation
{
    HCONV       hConv;
    DdeTopic*   pTopic;
};

typedef ::std::vector< Conversation* > ConvList;

// ---------------
// - DdeInternal -
// ---------------

class DdeInternal
{
public:
#ifdef WNT
    static HDDEDATA CALLBACK CliCallback
           ( WORD, WORD, HCONV, HSZ, HSZ, HDDEDATA, DWORD, DWORD );
    static HDDEDATA CALLBACK SvrCallback
           ( WORD, WORD, HCONV, HSZ, HSZ, HDDEDATA, DWORD, DWORD );
    static HDDEDATA CALLBACK InfCallback
           ( WORD, WORD, HCONV, HSZ, HSZ, HDDEDATA, DWORD, DWORD );
#else
#if defined( ICC )
    static HDDEDATA CALLBACK CliCallback
           ( WORD, WORD, HCONV, HSZ, HSZ, HDDEDATA, DWORD, DWORD );
    static HDDEDATA CALLBACK SvrCallback
           ( WORD, WORD, HCONV, HSZ, HSZ, HDDEDATA, DWORD, DWORD );
    static HDDEDATA CALLBACK InfCallback
           ( WORD, WORD, HCONV, HSZ, HSZ, HDDEDATA, DWORD, DWORD );
#else
    static HDDEDATA CALLBACK _export CliCallback
           ( WORD, WORD, HCONV, HSZ, HSZ, HDDEDATA, DWORD, DWORD );
    static HDDEDATA CALLBACK _export SvrCallback
           ( WORD, WORD, HCONV, HSZ, HSZ, HDDEDATA, DWORD, DWORD );
    static HDDEDATA CALLBACK _export InfCallback
           ( WORD, WORD, HCONV, HSZ, HSZ, HDDEDATA, DWORD, DWORD );
#endif
#endif
    static DdeService*      FindService( HSZ );
    static DdeTopic*        FindTopic( DdeService&, HSZ );
    static DdeItem*         FindItem( DdeTopic&, HSZ );
};

// -------------
// - DdeString -
// -------------

class DdeString : public String
{
protected:
    HSZ         hString;
    DWORD       hInst;

public:
                DdeString( DWORD, const sal_Unicode* );
                DdeString( DWORD, const String& );
                ~DdeString();

    int         operator==( HSZ );
                operator HSZ();
};

// --------------
// - DdeDataImp -
// --------------

struct DdeDataImp
{
    HDDEDATA        hData;
    LPBYTE          pData;
    long            nData;
    sal_uLong           nFmt;
};

class DdeConnection;
class DdeServices;

class DdeInstData : private boost::noncopyable
{
public:
    sal_uInt16          nRefCount;
    std::vector<DdeConnection*> aConnections;
    // Server
    long            hCurConvSvr;
    DWORD           hDdeInstSvr;
    short           nInstanceSvr;
    DdeServices*    pServicesSvr;
    // Client
    DWORD           hDdeInstCli;
    short           nInstanceCli;

    DdeInstData()
        : nRefCount(0)
        , hCurConvSvr(0)
        , hDdeInstSvr(0)
        , nInstanceSvr(0)
        , pServicesSvr(NULL)
        , hDdeInstCli(0)
        , nInstanceCli(0)
    {
    }
};

#ifndef SHL_SVDDE
#define SHL_SVDDE   SHL_SHL2
#endif

inline DdeInstData* ImpGetInstData()
{
    return (DdeInstData*)(*GetAppData( SHL_SVDDE ));
}
DdeInstData* ImpInitInstData();
void ImpDeinitInstData();

#endif // _DDEIMP_HXX

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