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#include "expbase.hxx"
#include "document.hxx"
#include "editutil.hxx"


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

#if defined(UNX)
const sal_Char ScExportBase::sNewLine = '\012';
#else
const sal_Char ScExportBase::sNewLine[] = "\015\012";
#endif


ScExportBase::ScExportBase( SvStream& rStrmP, ScDocument* pDocP,
                const ScRange& rRangeP )
            :
            rStrm( rStrmP ),
            aRange( rRangeP ),
            pDoc( pDocP ),
            pFormatter( pDocP->GetFormatTable() ),
            pEditEngine( NULL )
{
}


ScExportBase::~ScExportBase()
{
    delete pEditEngine;
}


sal_Bool ScExportBase::GetDataArea( SCTAB nTab, SCCOL& nStartCol,
            SCROW& nStartRow, SCCOL& nEndCol, SCROW& nEndRow ) const
{
    pDoc->GetDataStart( nTab, nStartCol, nStartRow );
    pDoc->GetPrintArea( nTab, nEndCol, nEndRow, sal_True );
    return TrimDataArea( nTab, nStartCol, nStartRow, nEndCol, nEndRow );
}


sal_Bool ScExportBase::TrimDataArea( SCTAB nTab, SCCOL& nStartCol,
            SCROW& nStartRow, SCCOL& nEndCol, SCROW& nEndRow ) const
{
    while ( nStartCol <= nEndCol && pDoc->ColHidden(nStartCol, nTab))
        ++nStartCol;
    while ( nStartCol <= nEndCol && pDoc->ColHidden(nEndCol, nTab))
        --nEndCol;
    nStartRow = pDoc->FirstVisibleRow(nStartRow, nEndRow, nTab);
    nEndRow = pDoc->LastVisibleRow(nStartRow, nEndRow, nTab);
    return nStartCol <= nEndCol && nStartRow <= nEndRow && nEndRow !=
        ::std::numeric_limits<SCROW>::max();
}


sal_Bool ScExportBase::IsEmptyTable( SCTAB nTab ) const
{
    if ( !pDoc->HasTable( nTab ) || !pDoc->IsVisible( nTab ) )
        return sal_True;
    SCCOL nStartCol, nEndCol;
    SCROW nStartRow, nEndRow;
    return !GetDataArea( nTab, nStartCol, nStartRow, nEndCol, nEndRow );
}


ScFieldEditEngine& ScExportBase::GetEditEngine() const
{
    if ( !pEditEngine )
        ((ScExportBase*)this)->pEditEngine = new ScFieldEditEngine(pDoc, pDoc->GetEditPool());
    return *pEditEngine;
}


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