office-gobmx/basic/source/sbx/sbxcurr.cxx
2011-11-28 14:56:40 +01:00

556 lines
17 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
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* it under the terms of the GNU Lesser General Public License version 3
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*
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* 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
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*
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#include <tools/errcode.hxx>
#include <vcl/svapp.hxx> // for SvtSysLocale
#include <basic/sbx.hxx>
#include <basic/sbxvar.hxx>
#include "sbxconv.hxx"
static rtl::OUString ImpCurrencyToString( const sal_Int64 &rVal )
{
bool isNeg = ( rVal < 0 );
sal_Int64 absVal = isNeg ? -rVal : rVal;
SvtSysLocale aSysLocale;
sal_Unicode cDecimalSep = '.';
#if MAYBEFUTURE
sal_Unicode cThousandSep = ',';
const LocaleDataWrapper& rData = aSysLocale.GetLocaleData();
cDecimalSep = rData.getNumDecimalSep().GetBuffer()[0];
cThousandSep = rData.getNumThousandSep().GetBuffer()[0];
#endif
rtl::OUString aAbsStr = rtl::OUString::valueOf( absVal );
rtl::OUStringBuffer aBuf;
sal_Int32 initialLen = aAbsStr.getLength();
bool bLessThanOne = false;
if ( initialLen <= 4 ) // if less the 1
bLessThanOne = true;
sal_Int32 nCapacity = 6; // minimum e.g. 0.0000
if ( !bLessThanOne )
{
nCapacity = initialLen + 1;
#if MAYBEFUTURE
if ( initialLen > 5 )
{
sal_Int32 nThouSeperators = ( initialLen - 5 ) / 3;
nCapacity += nThouSeperators;
}
#endif
}
if ( isNeg )
++nCapacity;
aBuf.setLength( nCapacity );
sal_Int32 nDigitCount = 0;
sal_Int32 nInsertIndex = nCapacity - 1;
sal_Int32 nEndIndex = isNeg ? 1 : 0;
for ( sal_Int32 charCpyIndex = aAbsStr.getLength() - 1; nInsertIndex >= nEndIndex; ++nDigitCount )
{
if ( nDigitCount == 4 )
aBuf[nInsertIndex--] = cDecimalSep;
#if MAYBEFUTURE
if ( nDigitCount > 4 && ! ( ( nDigitCount - 4 ) % 3) )
aBuf[nInsertIndex--] = cThousandSep;
#endif
if ( nDigitCount < initialLen )
aBuf[nInsertIndex--] = aAbsStr[ charCpyIndex-- ];
else
// Handle leading 0's to right of decimal point
// Note: in VBA the stringification is a little more complex
// but more natural as only the necessary digits
// to the right of the decimal places are displayed
// It would be great to conditionally be able to display like that too
//
// Val OOo (Cur) VBA (Cur)
// --- --------- ---------
// 0 0.0000 0
// 0.1 0.1000 0.1
aBuf[nInsertIndex--] = (sal_Unicode)'0';
}
if ( isNeg )
aBuf[nInsertIndex] = (sal_Unicode)'-';
aAbsStr = aBuf.makeStringAndClear();
return aAbsStr;
}
static sal_Int64 ImpStringToCurrency( const rtl::OUString &rStr )
{
sal_Int32 nFractDigit = 4;
SvtSysLocale aSysLocale;
sal_Unicode cDeciPnt = sal_Unicode('.');
sal_Unicode c1000Sep = sal_Unicode(',');
#if MAYBEFUTURE
const LocaleDataWrapper& rData = aSysLocale.GetLocaleData();
sal_Unicode cLocaleDeciPnt = rData.getNumDecimalSep().GetBuffer()[0];
sal_Unicode cLocale1000Sep = rData.getNumThousandSep().GetBuffer()[0];
// score each set of separators (Locale and Basic) on total number of matches
// if one set has more matches use that set
// if tied use the set with the only or rightmost decimal separator match
// currency is fixed pt system: usually expect the decimal pt, 1000sep may occur
sal_Int32 LocaleScore = 0;
sal_Int32 LocaleLastDeci = -1;
sal_Int32 LOBasicScore = 0;
sal_Int32 LOBasicLastDeci = -1;
for( int idx=0; idx<rStr.getLength(); idx++ )
{
if ( *(p+idx) == cLocaleDeciPnt )
{
LocaleScore++;
LocaleLastDeci = idx;
}
if ( *(p+idx) == cLocale1000Sep )
LocaleScore++;
if ( *(p+idx) == cDeciPnt )
{
LOBasicScore++;
LOBasicLastDeci = idx;
}
if ( *(p+idx) == c1000Sep )
LOBasicScore++;
}
if ( ( LocaleScore > LOBasicScore )
||( LocaleScore = LOBasicScore && LocaleLastDeci > LOBasicLastDeci ) )
{
cDeciPnt = cLocaleDeciPnt;
c1000Sep = cLocale1000Sep;
}
#endif
// lets use the existing string number conversions
// there is a performance impact here ( multiple string copies )
// but better I think than a home brewed string parser, if we need a parser
// we should share some existing ( possibly from calc is there a currency
// conversion there ? #TODO check )
rtl::OUString sTmp( rStr.trim() );
const sal_Unicode* p = sTmp.getStr();
// normalise string number by removeing thousands & decimal point seperators
rtl::OUStringBuffer sNormalisedNumString( sTmp.getLength() + nFractDigit );
if ( *p == '-' || *p == '+' )
sNormalisedNumString.append( *p );
while ( ( *p >= '0' && *p <= '9' ) )
{
sNormalisedNumString.append( *p++ );
// #TODO in vba mode set runtime error when a space ( or other )
// illegal character is found
if( *p == c1000Sep )
p++;
}
bool bRoundUp = false;
if( *p == cDeciPnt )
{
p++;
while( nFractDigit && *p >= '0' && *p <= '9' )
{
sNormalisedNumString.append( *p++ );
nFractDigit--;
}
// Consume trailing content
if ( p != NULL )
{
// Round up if necessary
if( *p >= '5' && *p <= '9' )
bRoundUp = true;
while( *p >= '0' && *p <= '9' )
p++;
}
}
// can we raise error here ? ( previous behaviour was more forgiving )
// so... not sure that could bread existing code, lets see if anyone
// complains.
if ( p != sTmp.getStr() + sTmp.getLength() )
SbxBase::SetError( SbxERR_CONVERSION );
while( nFractDigit )
{
sNormalisedNumString.append( sal_Unicode('0') );
nFractDigit--;
}
sal_Int64 result = sNormalisedNumString.makeStringAndClear().toInt64();
if ( bRoundUp )
++result;
return result;
}
sal_Int64 ImpGetCurrency( const SbxValues* p )
{
SbxValues aTmp;
sal_Int64 nRes;
start:
switch( +p->eType )
{
case SbxERROR:
case SbxNULL:
SbxBase::SetError( SbxERR_CONVERSION );
nRes = 0; break;
case SbxEMPTY:
nRes = 0; break;
case SbxCURRENCY:
nRes = p->nInt64; break;
case SbxBYTE:
nRes = (sal_Int64)CURRENCY_FACTOR * (sal_Int64)(p->nByte);
break;
case SbxCHAR:
nRes = (sal_Int64)CURRENCY_FACTOR * (sal_Int64)(p->pChar);
break;
case SbxBOOL:
case SbxINTEGER:
nRes = (sal_Int64)CURRENCY_FACTOR * (sal_Int64)(p->nInteger);
break;
case SbxUSHORT:
nRes = (sal_Int64)CURRENCY_FACTOR * (sal_Int64)(p->nUShort);
break;
case SbxLONG:
nRes = (sal_Int64)CURRENCY_FACTOR * (sal_Int64)(p->nLong);
break;
case SbxULONG:
nRes = (sal_Int64)CURRENCY_FACTOR * (sal_Int64)(p->nULong);
break;
case SbxSALINT64:
{
nRes = p->nInt64 * CURRENCY_FACTOR; break;
#if 0
// Huh, is the 'break' above intentional? That means this
// is unreachable, obviously. Avoid warning by ifdeffing
// this out for now. Do not delete this #if 0 block unless
// you know for sure the 'break' above is intentional.
if ( nRes > SbxMAXSALINT64 )
{
SbxBase::SetError( SbxERR_OVERFLOW ); nRes = SbxMAXSALINT64;
}
#endif
}
case SbxSALUINT64:
nRes = p->nInt64 * CURRENCY_FACTOR; break;
#if 0
// As above
if ( nRes > SbxMAXSALINT64 )
{
SbxBase::SetError( SbxERR_OVERFLOW ); nRes = SbxMAXSALINT64;
}
else if ( nRes < SbxMINSALINT64 )
{
SbxBase::SetError( SbxERR_OVERFLOW ); nRes = SbxMINSALINT64;
}
break;
#endif
//TODO: bring back SbxINT64 types here for limits -1 with flag value at SAL_MAX/MIN
case SbxSINGLE:
if( p->nSingle * CURRENCY_FACTOR + 0.5 > (float)SAL_MAX_INT64
|| p->nSingle * CURRENCY_FACTOR - 0.5 < (float)SAL_MIN_INT64 )
{
nRes = SAL_MAX_INT64;
if( p->nSingle * CURRENCY_FACTOR - 0.5 < (float)SAL_MIN_INT64 )
nRes = SAL_MIN_INT64;
SbxBase::SetError( SbxERR_OVERFLOW );
break;
}
nRes = ImpDoubleToCurrency( (double)p->nSingle );
break;
case SbxDATE:
case SbxDOUBLE:
if( p->nDouble * CURRENCY_FACTOR + 0.5 > (double)SAL_MAX_INT64
|| p->nDouble * CURRENCY_FACTOR - 0.5 < (double)SAL_MIN_INT64 )
{
nRes = SAL_MAX_INT64;
if( p->nDouble * CURRENCY_FACTOR - 0.5 < (double)SAL_MIN_INT64 )
nRes = SAL_MIN_INT64;
SbxBase::SetError( SbxERR_OVERFLOW );
break;
}
nRes = ImpDoubleToCurrency( p->nDouble );
break;
case SbxDECIMAL:
case SbxBYREF | SbxDECIMAL:
{
double d = 0.0;
if( p->pDecimal )
p->pDecimal->getDouble( d );
nRes = ImpDoubleToCurrency( d );
break;
}
case SbxBYREF | SbxSTRING:
case SbxSTRING:
case SbxLPSTR:
if( !p->pOUString )
nRes=0;
else
nRes = ImpStringToCurrency( *p->pOUString );
break;
case SbxOBJECT:
{
SbxValue* pVal = PTR_CAST(SbxValue,p->pObj);
if( pVal )
nRes = pVal->GetCurrency();
else
{
SbxBase::SetError( SbxERR_NO_OBJECT );
nRes=0;
}
break;
}
case SbxBYREF | SbxCHAR:
nRes = (sal_Int64)CURRENCY_FACTOR * (sal_Int64)(*p->pChar);
break;
case SbxBYREF | SbxBYTE:
nRes = (sal_Int64)CURRENCY_FACTOR * (sal_Int64)(*p->pByte);
break;
case SbxBYREF | SbxBOOL:
case SbxBYREF | SbxINTEGER:
nRes = (sal_Int64)CURRENCY_FACTOR * (sal_Int64)(*p->pInteger);
break;
case SbxBYREF | SbxERROR:
case SbxBYREF | SbxUSHORT:
nRes = (sal_Int64)CURRENCY_FACTOR * (sal_Int64)(*p->pUShort);
break;
// from here on had to be tested
case SbxBYREF | SbxLONG:
aTmp.nLong = *p->pLong; goto ref;
case SbxBYREF | SbxULONG:
aTmp.nULong = *p->pULong; goto ref;
case SbxBYREF | SbxSINGLE:
aTmp.nSingle = *p->pSingle; goto ref;
case SbxBYREF | SbxDATE:
case SbxBYREF | SbxDOUBLE:
aTmp.nDouble = *p->pDouble; goto ref;
case SbxBYREF | SbxCURRENCY:
case SbxBYREF | SbxSALINT64:
aTmp.nInt64 = *p->pnInt64; goto ref;
case SbxBYREF | SbxSALUINT64:
aTmp.uInt64 = *p->puInt64; goto ref;
ref:
aTmp.eType = SbxDataType( p->eType & ~SbxBYREF );
p = &aTmp; goto start;
default:
SbxBase::SetError( SbxERR_CONVERSION );
nRes=0;
}
return nRes;
}
void ImpPutCurrency( SbxValues* p, const sal_Int64 r )
{
SbxValues aTmp;
start:
switch( +p->eType )
{
// Here are tests necessary
case SbxCHAR:
aTmp.pChar = &p->nChar; goto direct;
case SbxBYTE:
aTmp.pByte = &p->nByte; goto direct;
case SbxINTEGER:
case SbxBOOL:
aTmp.pInteger = &p->nInteger; goto direct;
case SbxLONG:
aTmp.pLong = &p->nLong; goto direct;
case SbxULONG:
aTmp.pULong = &p->nULong; goto direct;
case SbxERROR:
case SbxUSHORT:
aTmp.pUShort = &p->nUShort; goto direct;
direct:
aTmp.eType = SbxDataType( p->eType | SbxBYREF );
p = &aTmp; goto start;
// from here no longer
case SbxSINGLE:
p->nSingle = (float)( r / CURRENCY_FACTOR ); break;
case SbxDATE:
case SbxDOUBLE:
p->nDouble = ImpCurrencyToDouble( r ); break;
case SbxSALUINT64:
p->uInt64 = r / CURRENCY_FACTOR; break;
case SbxSALINT64:
p->nInt64 = r / CURRENCY_FACTOR; break;
case SbxCURRENCY:
p->nInt64 = r; break;
case SbxDECIMAL:
case SbxBYREF | SbxDECIMAL:
{
SbxDecimal* pDec = ImpCreateDecimal( p );
if( !pDec->setDouble( ImpCurrencyToDouble( r ) / CURRENCY_FACTOR ) )
SbxBase::SetError( SbxERR_OVERFLOW );
break;
}
case SbxBYREF | SbxSTRING:
case SbxSTRING:
case SbxLPSTR:
if( !p->pOUString )
p->pOUString = new rtl::OUString;
*p->pOUString = ImpCurrencyToString( r );
break;
case SbxOBJECT:
{
SbxValue* pVal = PTR_CAST(SbxValue,p->pObj);
if( pVal )
pVal->PutCurrency( r );
else
SbxBase::SetError( SbxERR_NO_OBJECT );
break;
}
case SbxBYREF | SbxCHAR:
{
sal_Int64 val = r / CURRENCY_FACTOR;
if( val > SbxMAXCHAR )
{
SbxBase::SetError( SbxERR_OVERFLOW ); val = SbxMAXCHAR;
}
else if( val < SbxMINCHAR )
{
SbxBase::SetError( SbxERR_OVERFLOW ); val = SbxMINCHAR;
}
*p->pChar = (sal_Unicode) val; break;
}
case SbxBYREF | SbxBYTE:
{
sal_Int64 val = r / CURRENCY_FACTOR;
if( val > SbxMAXBYTE )
{
SbxBase::SetError( SbxERR_OVERFLOW ); val = SbxMAXBYTE;
}
else if( val < 0 )
{
SbxBase::SetError( SbxERR_OVERFLOW ); val = 0;
}
*p->pByte = (sal_uInt8) val; break;
}
case SbxBYREF | SbxINTEGER:
case SbxBYREF | SbxBOOL:
{
sal_Int64 val = r / CURRENCY_FACTOR;
if( r > SbxMAXINT )
{
SbxBase::SetError( SbxERR_OVERFLOW ); val = SbxMAXINT;
}
else if( r < SbxMININT )
{
SbxBase::SetError( SbxERR_OVERFLOW ); val = SbxMININT;
}
*p->pInteger = (sal_uInt16) val; break;
}
case SbxBYREF | SbxERROR:
case SbxBYREF | SbxUSHORT:
{
sal_Int64 val = r / CURRENCY_FACTOR;
if( val > SbxMAXUINT )
{
SbxBase::SetError( SbxERR_OVERFLOW ); val = SbxMAXUINT;
}
else if( val < 0 )
{
SbxBase::SetError( SbxERR_OVERFLOW ); val = 0;
}
*p->pUShort = (sal_uInt16) val; break;
}
case SbxBYREF | SbxLONG:
{
sal_Int64 val = r / CURRENCY_FACTOR;
if( val > SbxMAXLNG )
{
SbxBase::SetError( SbxERR_OVERFLOW ); val = SbxMAXLNG;
}
else if( val < SbxMINLNG )
{
SbxBase::SetError( SbxERR_OVERFLOW ); val = SbxMINLNG;
}
*p->pLong = (sal_Int32) val; break;
}
case SbxBYREF | SbxULONG:
{
sal_Int64 val = r / CURRENCY_FACTOR;
if( val > SbxMAXULNG )
{
SbxBase::SetError( SbxERR_OVERFLOW ); val = SbxMAXULNG;
}
else if( val < 0 )
{
SbxBase::SetError( SbxERR_OVERFLOW ); val = 0;
}
*p->pULong = (sal_uInt32) val; break;
}
case SbxBYREF | SbxCURRENCY:
*p->pnInt64 = r; break;
case SbxBYREF | SbxSALINT64:
*p->pnInt64 = r / CURRENCY_FACTOR; break;
case SbxBYREF | SbxSALUINT64:
*p->puInt64 = (sal_uInt64)r / CURRENCY_FACTOR; break;
case SbxBYREF | SbxSINGLE:
p->nSingle = (float)( r / CURRENCY_FACTOR ); break;
case SbxBYREF | SbxDATE:
case SbxBYREF | SbxDOUBLE:
*p->pDouble = ImpCurrencyToDouble( r ); break;
default:
SbxBase::SetError( SbxERR_CONVERSION );
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */