/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svl.hxx"

// ACHTUNG: es wird angenommen, dass StarView-Clipboard-Foamatnummern
// und Windows-Formatnummern identisch sind! Ist dies einmal nicht der
// Fall, muessen die Routinen hier angepasst werden. Die Implementation
// verwendet die hier defineirten Konversionen.

#define UNICODE

#include <string.h>
#include "ddeimp.hxx"
#include <svl/svdde.hxx>

#include <osl/thread.h>

// --- DdeData::DdeData() ------------------------------------------

DdeData::DdeData()
{
	pImp = new DdeDataImp;
	pImp->hData = NULL;
	pImp->nData = 0;
	pImp->pData = NULL;
	pImp->nFmt  = CF_TEXT;
}

// --- DdeData::DdeData() ------------------------------------------

DdeData::DdeData( const void* p, long n, sal_uLong f )
{
	pImp = new DdeDataImp;
	pImp->hData = NULL;
	pImp->pData = (LPBYTE)p;
	pImp->nData = n;
	pImp->nFmt  = f;
}

// --- DdeData::DdeData() ------------------------------------------

DdeData::DdeData( const String& s )
{
	pImp = new DdeDataImp;
	pImp->hData = NULL;
	pImp->pData = (LPBYTE)s.GetBuffer();
	pImp->nData = s.Len()+1;
	pImp->nFmt  = CF_TEXT;
}

// --- DdeData::DdeData() ------------------------------------------

DdeData::DdeData( const DdeData& rData )
{
	pImp = new DdeDataImp;
	pImp->hData = rData.pImp->hData;
	pImp->nData = rData.pImp->nData;
	pImp->pData = rData.pImp->pData;
	pImp->nFmt  = rData.pImp->nFmt;
	Lock();
}

// --- DdeData::~DdeData() -----------------------------------------

DdeData::~DdeData()
{
	if ( pImp && pImp->hData )
		DdeUnaccessData( pImp->hData );
	delete pImp;
}

// --- DdeData::Lock() ---------------------------------------------

void DdeData::Lock()
{
	if ( pImp->hData )
		pImp->pData = DdeAccessData( pImp->hData, (LPDWORD) &pImp->nData );
}

// --- DdeData::GetFormat() ----------------------------------------

sal_uLong DdeData::GetFormat() const
{
	return pImp->nFmt;
}

void DdeData::SetFormat( sal_uLong nFmt )
{
	pImp->nFmt = nFmt;
}

// --- DdeData::operator const char*() -----------------------------

DdeData::operator const void*() const
{
	return pImp->pData;
}

// --- DdeData::operator long() ------------------------------------

DdeData::operator long() const
{
	return pImp->nData;
}

// --- DdeData::operator =() ---------------------------------------

DdeData& DdeData::operator = ( const DdeData& rData )
{
	if ( &rData != this )
	{
		DdeData tmp( rData );
		delete pImp;
		pImp = tmp.pImp;
		tmp.pImp = NULL;
	}

	return *this;
}

sal_uLong DdeData::GetExternalFormat( sal_uLong nFmt )
{
	switch( nFmt )
	{
	case FORMAT_STRING:
		nFmt = CF_TEXT;
		break;
	case FORMAT_BITMAP:
		nFmt = CF_BITMAP;
		break;
	case FORMAT_GDIMETAFILE:
		nFmt = CF_METAFILEPICT;
		break;

	default:
		{
#if defined(WNT) || defined( PM2 )
			String aName( SotExchange::GetFormatName( nFmt ) );

#if defined(WNT)

			if( aName.Len() )
				nFmt = RegisterClipboardFormat( reinterpret_cast<LPCWSTR>(aName.GetBuffer()) );
#endif
#if defined( PM2 )

			if( aName.Len() )
			{
				HATOMTBL hSysTable = WinQuerySystemAtomTable();
				nFmt = (sal_uLong)WinAddAtom( hSysTable, (PSZ)aName.GetBuffer() );
			}
#endif
#endif
		}
	}
	return nFmt;
}

sal_uLong DdeData::GetInternalFormat( sal_uLong nFmt )
{
	switch( nFmt )
	{
	case CF_TEXT:
		nFmt = FORMAT_STRING;
		break;

	case CF_BITMAP:
		nFmt = FORMAT_BITMAP;
		break;

	case CF_METAFILEPICT:
		nFmt = FORMAT_GDIMETAFILE;
		break;

	default:
#if defined(WNT)
		if( nFmt >= CF_MAX )
		{
			TCHAR szName[ 256 ];

			if( GetClipboardFormatName( nFmt, szName, sizeof(szName) ) )
				nFmt = SotExchange::RegisterFormatName( String(reinterpret_cast<const sal_Unicode*>(szName)) );
		}
#endif
#if defined(PM2)
		if( nFmt > CF_PALETTE )
		{
			char szName[ 256 ];

			HATOMTBL hSysTable = WinQuerySystemAtomTable();
			WinQueryAtomName( hSysTable, (ATOM)nFmt, (PSZ)szName,
								sizeof( szName ) );
			nFmt = SotExchange::RegisterFormatName( String( szName ) );
		}
#endif
		break;
	}
	return nFmt;
}