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



//------------------------------------------------------------------------

#include <rtl/math.hxx>

#include <stdio.h>

#include "dif.hxx"
#include "filter.hxx"
#include "document.hxx"
#include "cell.hxx"
#include "globstr.hrc"
#include "global.hxx"
#include "progress.hxx"
#include <rtl/tencinfo.h>
#include "ftools.hxx"

FltError ScFormatFilterPluginImpl::ScExportDif( SvStream& rStream, ScDocument* pDoc,
	const ScAddress& rOutPos, const CharSet eNach, sal_uInt32 nDifOption )
{
	SCCOL		nEndCol;
	SCROW		nEndRow;
	pDoc->GetTableArea( rOutPos.Tab(), nEndCol, nEndRow );
	ScAddress	aEnd( nEndCol, nEndRow, rOutPos.Tab() );
	ScAddress	aStart( rOutPos );

	aStart.PutInOrder( aEnd );

	return ScExportDif( rStream, pDoc, ScRange( aStart, aEnd ), eNach, nDifOption );
}


FltError ScFormatFilterPluginImpl::ScExportDif( SvStream& rOut, ScDocument* pDoc,
	const ScRange&rRange, const CharSet eCharSet, sal_uInt32 nDifOption )
{
	DBG_ASSERT( rRange.aStart <= rRange.aEnd, "*ScExportDif(): Range unsortiert!" );
	DBG_ASSERTWARNING( rRange.aStart.Tab() == rRange.aEnd.Tab(),
		"ScExportDif(): nur eine Tabelle bidde!" );

    const CharSet eStreamCharSet = rOut.GetStreamCharSet();
    if ( eStreamCharSet != eCharSet )
        rOut.SetStreamCharSet( eCharSet );

    sal_Unicode cStrDelim('"');
    ByteString aStrDelimEncoded;    // only used if not Unicode
    UniString aStrDelimDecoded;     // only used if context encoding
    sal_Bool bContextOrNotAsciiEncoding;
	if ( eCharSet == RTL_TEXTENCODING_UNICODE )
    {
		rOut.StartWritingUnicodeText();
        bContextOrNotAsciiEncoding = sal_False;
    }
    else
    {
        aStrDelimEncoded = ByteString( cStrDelim, eCharSet );
        rtl_TextEncodingInfo aInfo;
        aInfo.StructSize = sizeof(aInfo);
        if ( rtl_getTextEncodingInfo( eCharSet, &aInfo ) )
        {
            bContextOrNotAsciiEncoding =
                (((aInfo.Flags & RTL_TEXTENCODING_INFO_CONTEXT) != 0) ||
                 ((aInfo.Flags & RTL_TEXTENCODING_INFO_ASCII) == 0));
            if ( bContextOrNotAsciiEncoding )
                aStrDelimDecoded = String( aStrDelimEncoded, eCharSet );
        }
        else
            bContextOrNotAsciiEncoding = sal_False;
    }

	const sal_Char*		p2DoubleQuotes_LF = "\"\"\n";
	const sal_Char*		pSpecDataType_LF = "-1,0\n";
	const sal_Char*		pEmptyData = "1,0\n\"\"\n";
	const sal_Char*		pStringData = "1,0\n";
	const sal_Char*		pNumData = "0,";
	const sal_Char*		pNumDataERROR = "0,0\nERROR\n";

	FltError			eRet = eERR_OK;
	String			    aOS;
	String				aString;
	SCCOL				nEndCol = rRange.aEnd.Col();
	SCROW				nEndRow = rRange.aEnd.Row();
	SCCOL				nNumCols = nEndCol - rRange.aStart.Col() + 1;
	SCROW				nNumRows = nEndRow - rRange.aStart.Row() + 1;
	SCTAB				nTab = rRange.aStart.Tab();

	double				fVal;

	const sal_Bool			bPlain = ( nDifOption == SC_DIFOPT_PLAIN );

    ScProgress          aPrgrsBar( pDoc->GetDocumentShell(), ScGlobal::GetRscString( STR_LOAD_DOC ), nNumRows );

	aPrgrsBar.SetState( 0 );

	// TABLE
	DBG_ASSERT( pDoc->HasTable( nTab ), "*ScExportDif(): Tabelle nicht vorhanden!" );

	aOS = pKeyTABLE;
	aOS.AppendAscii( "\n0,1\n\"" );

	pDoc->GetName( nTab, aString );
	aOS += aString;
	aOS.AppendAscii( "\"\n" );
    rOut.WriteUnicodeOrByteText( aOS );

	// VECTORS
	aOS = pKeyVECTORS;
	aOS.AppendAscii( "\n0," );
	aOS += String::CreateFromInt32( nNumCols );
	aOS += sal_Unicode('\n');
	aOS.AppendAscii( p2DoubleQuotes_LF );
    rOut.WriteUnicodeOrByteText( aOS );

	// TUPLES
	aOS = pKeyTUPLES;
	aOS.AppendAscii( "\n0," );
	aOS += String::CreateFromInt32( nNumRows );
	aOS += sal_Unicode('\n');
	aOS.AppendAscii( p2DoubleQuotes_LF );
    rOut.WriteUnicodeOrByteText( aOS );

	// DATA
    aOS = pKeyDATA;
	aOS.AppendAscii( "\n0,0\n" );
	aOS.AppendAscii( p2DoubleQuotes_LF );
    rOut.WriteUnicodeOrByteText( aOS );

	SCCOL				nColCnt;
	SCROW				nRowCnt;
	ScBaseCell*			pAkt;

	for( nRowCnt = rRange.aStart.Row() ; nRowCnt <= nEndRow ; nRowCnt++ )
	{
        aOS.AssignAscii( pSpecDataType_LF );
        aOS += pKeyBOT;
        aOS += sal_Unicode('\n');
        rOut.WriteUnicodeOrByteText( aOS );
		for( nColCnt = rRange.aStart.Col() ; nColCnt <= nEndCol ; nColCnt++ )
		{
            bool bWriteStringData = false;
			pDoc->GetCell( nColCnt, nRowCnt, nTab, pAkt );
			if( pAkt )
			{
				switch( pAkt->GetCellType() )
				{
					case CELLTYPE_NONE:
					case CELLTYPE_NOTE:
						aOS.AssignAscii( pEmptyData );
						break;
					case CELLTYPE_VALUE:
						aOS.AssignAscii( pNumData );
						if( bPlain )
						{
							fVal = ( ( ScValueCell * ) pAkt )->GetValue();
                            aOS += String( ::rtl::math::doubleToUString(
                                        fVal, rtl_math_StringFormat_G, 14, '.',
                                        sal_True));
						}
						else
						{
							pDoc->GetInputString( nColCnt, nRowCnt, nTab, aString );
							aOS += aString;
						}
						aOS.AppendAscii( "\nV\n" );
						break;
					case CELLTYPE_EDIT:
						( ( ScEditCell* ) pAkt )->GetString( aString );
                        bWriteStringData = true;
						break;
					case CELLTYPE_STRING:
						( ( ScStringCell* ) pAkt )->GetString( aString );
                        bWriteStringData = true;
						break;
					case CELLTYPE_FORMULA:
                        if ( ((ScFormulaCell*)pAkt)->GetErrCode() )
							aOS.AssignAscii( pNumDataERROR );
                        else if( pAkt->HasValueData() )
						{
							aOS.AssignAscii( pNumData );
							if( bPlain )
							{
								fVal = ( ( ScFormulaCell * ) pAkt )->GetValue();
                                aOS += String( ::rtl::math::doubleToUString(
                                            fVal, rtl_math_StringFormat_G, 14,
                                            '.', sal_True));
							}
							else
							{
								pDoc->GetInputString( nColCnt, nRowCnt, nTab, aString );
								aOS += aString;
							}
							aOS.AppendAscii( "\nV\n" );
						}
						else if( pAkt->HasStringData() )
						{
							( ( ScFormulaCell * ) pAkt )->GetString( aString );
                            bWriteStringData = true;
						}
						else
							aOS.AssignAscii( pNumDataERROR );

						break;
                    default:;
				}
			}
			else
				aOS.AssignAscii( pEmptyData );

            if ( !bWriteStringData )
                rOut.WriteUnicodeOrByteText( aOS );
            else
            {
                // for an explanation why this complicated, see
                // sc/source/ui/docsh.cxx:ScDocShell::AsciiSave()
                // In fact we should create a common method if this would be
                // needed just one more time..
                aOS.AssignAscii( pStringData );
                rOut.WriteUnicodeOrByteText( aOS, eCharSet );
                if ( eCharSet == RTL_TEXTENCODING_UNICODE )
                {
                    xub_StrLen nPos = aString.Search( cStrDelim );
                    while ( nPos != STRING_NOTFOUND )
                    {
                        aString.Insert( cStrDelim, nPos );
                        nPos = aString.Search( cStrDelim, nPos+2 );
                    }
                    rOut.WriteUniOrByteChar( cStrDelim, eCharSet );
                    rOut.WriteUnicodeText( aString );
                    rOut.WriteUniOrByteChar( cStrDelim, eCharSet );
                }
                else if ( bContextOrNotAsciiEncoding )
                {
                    // to byte encoding
                    ByteString aStrEnc( aString, eCharSet );
                    // back to Unicode
                    UniString aStrDec( aStrEnc, eCharSet );
                    // search on re-decoded string
                    xub_StrLen nPos = aStrDec.Search( aStrDelimDecoded );
                    while ( nPos != STRING_NOTFOUND )
                    {
                        aStrDec.Insert( aStrDelimDecoded, nPos );
                        nPos = aStrDec.Search( aStrDelimDecoded,
                                nPos+1+aStrDelimDecoded.Len() );
                    }
                    // write byte re-encoded
                    rOut.WriteUniOrByteChar( cStrDelim, eCharSet );
                    rOut.WriteUnicodeOrByteText( aStrDec, eCharSet );
                    rOut.WriteUniOrByteChar( cStrDelim, eCharSet );
                }
                else
                {
                    ByteString aStrEnc( aString, eCharSet );
                    // search on encoded string
                    xub_StrLen nPos = aStrEnc.Search( aStrDelimEncoded );
                    while ( nPos != STRING_NOTFOUND )
                    {
                        aStrEnc.Insert( aStrDelimEncoded, nPos );
                        nPos = aStrEnc.Search( aStrDelimEncoded,
                                nPos+1+aStrDelimEncoded.Len() );
                    }
                    // write byte encoded
                    rOut.Write( aStrDelimEncoded.GetBuffer(),
                            aStrDelimEncoded.Len() );
                    rOut.Write( aStrEnc.GetBuffer(), aStrEnc.Len() );
                    rOut.Write( aStrDelimEncoded.GetBuffer(),
                            aStrDelimEncoded.Len() );
                }
                rOut.WriteUniOrByteChar( '\n', eCharSet );
            }
		}
		aPrgrsBar.SetState( nRowCnt );
	}

    aOS.AssignAscii( pSpecDataType_LF );
    aOS += pKeyEOD;
    aOS += sal_Unicode('\n');
    rOut.WriteUnicodeOrByteText( aOS );

    // restore original value
    rOut.SetStreamCharSet( eStreamCharSet );

	return eRet;
}




