office-gobmx/xmloff/source/core/xmlehelp.cxx
2011-03-29 21:40:28 +01:00

501 lines
16 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
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* 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
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
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************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_xmloff.hxx"
#include <limits.h>
#include <tools/debug.hxx>
#include <tools/bigint.hxx>
#include <rtl/ustrbuf.hxx>
#include "xmlehelp.hxx"
#include <xmloff/xmltoken.hxx>
using ::rtl::OUString;
using ::rtl::OUStringBuffer;
using namespace ::xmloff::token;
void SvXMLExportHelper::AddLength( sal_Int32 nValue, MapUnit eValueUnit,
OUStringBuffer& rOut,
MapUnit eOutUnit )
{
// the sign is processed seperatly
if( nValue < 0 )
{
nValue = -nValue;
rOut.append( sal_Unicode('-') );
}
// The new length is (nVal * nMul)/(nDiv*nFac*10)
sal_Int32 nMul = 1000;
sal_Int32 nDiv = 1;
sal_Int32 nFac = 100;
enum XMLTokenEnum eUnit = XML_TOKEN_INVALID;
switch( eValueUnit )
{
case MAP_TWIP:
switch( eOutUnit )
{
case MAP_100TH_MM:
case MAP_10TH_MM:
DBG_ASSERT( MAP_INCH == eOutUnit,
"output unit not supported for twip values" );
case MAP_MM:
// 0.01mm = 0.57twip (exactly)
nMul = 25400; // 25.4 * 1000
nDiv = 1440; // 72 * 20;
nFac = 100;
eUnit = XML_UNIT_MM;
break;
case MAP_CM:
// 0.001cm = 0.57twip (exactly)
nMul = 25400; // 2.54 * 10000
nDiv = 1440; // 72 * 20;
nFac = 1000;
eUnit = XML_UNIT_CM;
break;
case MAP_POINT:
// 0.01pt = 0.2twip (exactly)
nMul = 1000;
nDiv = 20;
nFac = 100;
eUnit = XML_UNIT_PT;
break;
case MAP_INCH:
default:
DBG_ASSERT( MAP_INCH == eOutUnit,
"output unit not supported for twip values" );
// 0.0001in = 0.144twip (exactly)
nMul = 100000;
nDiv = 1440; // 72 * 20;
nFac = 10000;
eUnit = XML_UNIT_INCH;
break;
}
break;
case MAP_POINT:
// 1pt = 1pt (exactly)
DBG_ASSERT( MAP_POINT == eOutUnit,
"output unit not supported for pt values" );
nMul = 10;
nDiv = 1;
nFac = 1;
eUnit = XML_UNIT_PT;
break;
case MAP_10TH_MM:
case MAP_100TH_MM:
{
long nFac2 = (MAP_100TH_MM == eValueUnit) ? 100 : 10;
switch( eOutUnit )
{
case MAP_100TH_MM:
case MAP_10TH_MM:
DBG_ASSERT( MAP_INCH == eOutUnit,
"output unit not supported for 1/100mm values" );
case MAP_MM:
// 0.01mm = 1 mm/100 (exactly)
nMul = 10;
nDiv = 1;
nFac = nFac2;
eUnit = XML_UNIT_MM;
break;
case MAP_CM:
// 0.001mm = 1 mm/100 (exactly)
nMul = 10;
nDiv = 1; // 72 * 20;
nFac = 10*nFac2;
eUnit = XML_UNIT_CM;
break;
case MAP_POINT:
// 0.01pt = 0.35 mm/100 (exactly)
nMul = 72000;
nDiv = 2540;
nFac = nFac2;
eUnit = XML_UNIT_PT;
break;
case MAP_INCH:
default:
DBG_ASSERT( MAP_INCH == eOutUnit,
"output unit not supported for 1/100mm values" );
// 0.0001in = 0.254 mm/100 (exactly)
nMul = 100000;
nDiv = 2540;
nFac = 100*nFac2;
eUnit = XML_UNIT_INCH;
break;
}
break;
}
default:
DBG_ASSERT( 0, "input unit not handled" );
break;
}
sal_Int32 nLongVal = 0;
sal_Bool bOutLongVal = sal_True;
if( nValue > SAL_MAX_INT32 / nMul )
{
// A big int is required for calculation
BigInt nBigVal( nValue );
nBigVal *= nMul;
nBigVal /= nDiv;
nBigVal += 5;
nBigVal /= 10;
if( nBigVal.IsLong() )
{
// To convert the value into a string a sal_Int32 is sufficient
nLongVal = sal_Int32( nBigVal );
}
else
{
BigInt nBigFac( nFac );
BigInt nBig10( 10 );
rOut.append( (sal_Int32)(nBigVal / nBigFac) );
if( !(nBigVal % nBigFac).IsZero() )
{
rOut.append( sal_Unicode('.') );
while( nFac > 1 && !(nBigVal % nBigFac).IsZero() )
{
nFac /= 10;
nBigFac = nFac;
rOut.append( (sal_Int32)((nBigVal / nBigFac) % nBig10 ) );
}
}
bOutLongVal = sal_False;
}
}
else
{
nLongVal = nValue * nMul;
nLongVal /= nDiv;
nLongVal += 5;
nLongVal /= 10;
}
if( bOutLongVal )
{
rOut.append( (sal_Int32)(nLongVal / nFac) );
if( nFac > 1 && (nLongVal % nFac) != 0 )
{
rOut.append( sal_Unicode('.') );
while( nFac > 1 && (nLongVal % nFac) != 0 )
{
nFac /= 10;
rOut.append( (sal_Int32)((nLongVal / nFac) % 10) );
}
}
}
if( eUnit != XML_TOKEN_INVALID )
rOut.append( GetXMLToken(eUnit) );
}
void SvXMLExportHelper::AddPercentage( sal_Int32 nValue, OUStringBuffer& rOut )
{
rOut.append( nValue );
rOut.append( sal_Unicode('%' ) );
}
double SvXMLExportHelper::GetConversionFactor(::rtl::OUStringBuffer& rUnit,
const MapUnit eCoreUnit, const MapUnit eDestUnit)
{
double fRetval(1.0);
rUnit.setLength(0L);
if(eCoreUnit != eDestUnit)
{
enum XMLTokenEnum eUnit = XML_TOKEN_INVALID;
switch(eCoreUnit)
{
case MAP_TWIP:
{
switch(eDestUnit)
{
case MAP_100TH_MM:
case MAP_10TH_MM:
{
DBG_ASSERT(MAP_INCH == eDestUnit, "output unit not supported for twip values");
}
case MAP_MM:
{
// 0.01mm = 0.57twip (exactly)
fRetval = ((25400.0 / 1440.0) / 1000.0);
eUnit = XML_UNIT_MM;
break;
}
case MAP_CM:
{
// 0.001cm = 0.57twip (exactly)
fRetval = ((25400.0 / 1440.0) / 10000.0);
eUnit = XML_UNIT_CM;
break;
}
case MAP_POINT:
{
// 0.01pt = 0.2twip (exactly)
fRetval = ((1000.0 / 20.0) / 1000.0);
eUnit = XML_UNIT_PT;
break;
}
case MAP_INCH:
default:
{
DBG_ASSERT(MAP_INCH == eDestUnit, "output unit not supported for twip values");
// 0.0001in = 0.144twip (exactly)
fRetval = ((100000.0 / 1440.0) / 100000.0);
eUnit = XML_UNIT_INCH;
break;
}
}
break;
}
case MAP_POINT:
{
switch(eDestUnit)
{
case MAP_MM:
// 1mm = 72 / 25.4 pt (exactly)
fRetval = ( 25.4 / 72.0 );
eUnit = XML_UNIT_MM;
break;
case MAP_CM:
// 1cm = 72 / 2.54 pt (exactly)
fRetval = ( 2.54 / 72.0 );
eUnit = XML_UNIT_CM;
break;
case MAP_TWIP:
// 1twip = 72 / 1440 pt (exactly)
fRetval = 20.0; // 1440.0 / 72.0
eUnit = XML_UNIT_PC;
break;
case MAP_INCH:
default:
DBG_ASSERT(MAP_INCH == eDestUnit, "output unit not supported for pt values");
// 1in = 72 pt (exactly)
fRetval = ( 1.0 / 72.0 );
eUnit = XML_UNIT_INCH;
break;
}
break;
}
case MAP_10TH_MM:
{
switch(eDestUnit)
{
case MAP_100TH_MM:
case MAP_10TH_MM:
{
DBG_ASSERT(MAP_INCH == eDestUnit, "output unit not supported for 1/100mm values");
}
case MAP_MM:
{
// 0.01mm = 1 mm/100 (exactly)
fRetval = ((10.0 / 1.0) / 100.0);
eUnit = XML_UNIT_MM;
break;
}
case MAP_CM:
{
// 0.001mm = 1 mm/100 (exactly)
fRetval = ((10.0 / 1.0) / 1000.0);
eUnit = XML_UNIT_CM;
break;
}
case MAP_POINT:
{
// 0.01pt = 0.35 mm/100 (exactly)
fRetval = ((72000.0 / 2540.0) / 100.0);
eUnit = XML_UNIT_PT;
break;
}
case MAP_INCH:
default:
{
DBG_ASSERT(MAP_INCH == eDestUnit, "output unit not supported for 1/100mm values");
// 0.0001in = 0.254 mm/100 (exactly)
fRetval = ((100000.0 / 2540.0) / 10000.0);
eUnit = XML_UNIT_INCH;
break;
}
}
break;
}
case MAP_100TH_MM:
{
switch(eDestUnit)
{
case MAP_100TH_MM:
case MAP_10TH_MM:
{
DBG_ASSERT(MAP_INCH == eDestUnit, "output unit not supported for 1/100mm values");
}
case MAP_MM:
{
// 0.01mm = 1 mm/100 (exactly)
fRetval = ((10.0 / 1.0) / 1000.0);
eUnit = XML_UNIT_MM;
break;
}
case MAP_CM:
{
// 0.001mm = 1 mm/100 (exactly)
fRetval = ((10.0 / 1.0) / 10000.0);
eUnit = XML_UNIT_CM;
break;
}
case MAP_POINT:
{
// 0.01pt = 0.35 mm/100 (exactly)
fRetval = ((72000.0 / 2540.0) / 1000.0);
eUnit = XML_UNIT_PT;
break;
}
case MAP_INCH:
default:
{
DBG_ASSERT(MAP_INCH == eDestUnit, "output unit not supported for 1/100mm values");
// 0.0001in = 0.254 mm/100 (exactly)
fRetval = ((100000.0 / 2540.0) / 100000.0);
eUnit = XML_UNIT_INCH;
break;
}
}
break;
}
default:
OSL_FAIL("xmloff::SvXMLExportHelper::GetConversionFactor(), illegal eCoreUnit value!");
break;
}
if(eUnit != XML_TOKEN_INVALID)
rUnit.append(GetXMLToken(eUnit));
}
return fRetval;
}
MapUnit SvXMLExportHelper::GetUnitFromString(const ::rtl::OUString& rString, MapUnit eDefaultUnit)
{
sal_Int32 nPos = 0;
sal_Int32 nLen = rString.getLength();
MapUnit eRetUnit = eDefaultUnit;
// skip white space
while( nPos < nLen && sal_Unicode(' ') == rString[nPos] )
nPos++;
// skip negative
if( nPos < nLen && sal_Unicode('-') == rString[nPos] )
nPos++;
// skip number
while( nPos < nLen && sal_Unicode('0') <= rString[nPos] && sal_Unicode('9') >= rString[nPos] )
nPos++;
if( nPos < nLen && sal_Unicode('.') == rString[nPos] )
{
nPos++;
while( nPos < nLen && sal_Unicode('0') <= rString[nPos] && sal_Unicode('9') >= rString[nPos] )
nPos++;
}
// skip white space
while( nPos < nLen && sal_Unicode(' ') == rString[nPos] )
nPos++;
if( nPos < nLen )
{
switch(rString[nPos])
{
case sal_Unicode('%') :
{
eRetUnit = MAP_RELATIVE;
break;
}
case sal_Unicode('c'):
case sal_Unicode('C'):
{
if(nPos+1 < nLen && (rString[nPos+1] == sal_Unicode('m')
|| rString[nPos+1] == sal_Unicode('M')))
eRetUnit = MAP_CM;
break;
}
case sal_Unicode('e'):
case sal_Unicode('E'):
{
// CSS1_EMS or CSS1_EMX later
break;
}
case sal_Unicode('i'):
case sal_Unicode('I'):
{
if(nPos+1 < nLen && (rString[nPos+1] == sal_Unicode('n')
|| rString[nPos+1] == sal_Unicode('n')))
eRetUnit = MAP_INCH;
break;
}
case sal_Unicode('m'):
case sal_Unicode('M'):
{
if(nPos+1 < nLen && (rString[nPos+1] == sal_Unicode('m')
|| rString[nPos+1] == sal_Unicode('M')))
eRetUnit = MAP_MM;
break;
}
case sal_Unicode('p'):
case sal_Unicode('P'):
{
if(nPos+1 < nLen && (rString[nPos+1] == sal_Unicode('t')
|| rString[nPos+1] == sal_Unicode('T')))
eRetUnit = MAP_POINT;
if(nPos+1 < nLen && (rString[nPos+1] == sal_Unicode('c')
|| rString[nPos+1] == sal_Unicode('C')))
eRetUnit = MAP_TWIP;
break;
}
}
}
return eRetUnit;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */