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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
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 *
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#include <sot/stg.hxx>
#include <sot/storinfo.hxx>
#include <sot/exchange.hxx>


/************** class SvStorageInfo **************************************
*************************************************************************/
sal_uLong ReadClipboardFormat( SvStream & rStm )
{
    sal_uInt32 nFormat = 0;
    sal_Int32 nLen = 0;
    rStm >> nLen;
    if( rStm.IsEof() )
        rStm.SetError( SVSTREAM_GENERALERROR );
    if( nLen > 0 )
    {
        // get a string name
        sal_Char * p = new sal_Char[ nLen ];
        if( rStm.Read( p, nLen ) == (sal_uLong) nLen )
        {
            nFormat = SotExchange::RegisterFormatName( String::CreateFromAscii( p, short(nLen-1) ) );
        }
        else
            rStm.SetError( SVSTREAM_GENERALERROR );
        delete [] p;
    }
    else if( nLen == -1L )
        // Windows clipboard format
        // SV und Win stimmen ueberein (bis einschl. FORMAT_GDIMETAFILE)
        rStm >> nFormat;
    else if( nLen == -2L )
    {
        rStm >> nFormat;
        // Mac clipboard format
        // ??? not implemented
        rStm.SetError( SVSTREAM_GENERALERROR );
    }
    else if( nLen != 0 )
    {
        // unknown identifier
        rStm.SetError( SVSTREAM_GENERALERROR );
    }
    return nFormat;
}

void WriteClipboardFormat( SvStream & rStm, sal_uLong nFormat )
{
    // determine the clipboard format string
    String aCbFmt;
    if( nFormat > FORMAT_GDIMETAFILE )
        aCbFmt = SotExchange::GetFormatName( nFormat );
    if( aCbFmt.Len() )
    {
        rtl::OString aAsciiCbFmt(rtl::OUStringToOString(aCbFmt,
            RTL_TEXTENCODING_ASCII_US));
        rStm << (sal_Int32) (aAsciiCbFmt.getLength() + 1);
        rStm << (const char *)aAsciiCbFmt.getStr();
        rStm << (sal_uInt8) 0;
    }
    else if( nFormat )
        rStm << (sal_Int32) -1         // for Windows
             << (sal_Int32) nFormat;
    else
        rStm << (sal_Int32) 0;         // no clipboard format
}


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