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Diffstat (limited to 'oox/source/xls/unitconverter.cxx')
| -rw-r--r-- | oox/source/xls/unitconverter.cxx | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/oox/source/xls/unitconverter.cxx b/oox/source/xls/unitconverter.cxx new file mode 100644 index 000000000000..65c48e243edc --- /dev/null +++ b/oox/source/xls/unitconverter.cxx @@ -0,0 +1,262 @@ +/* -*- 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. + * + ************************************************************************/ + +#include "oox/xls/unitconverter.hxx" + +#include <com/sun/star/awt/DeviceInfo.hpp> +#include <com/sun/star/awt/FontDescriptor.hpp> +#include <com/sun/star/awt/XDevice.hpp> +#include <com/sun/star/awt/XFont.hpp> +#include <com/sun/star/util/Date.hpp> +#include <com/sun/star/util/DateTime.hpp> +#include <rtl/math.hxx> +#include "oox/core/filterbase.hxx" +#include "oox/helper/propertyset.hxx" +#include "oox/xls/stylesbuffer.hxx" + +namespace oox { +namespace xls { + +// ============================================================================ + +using namespace ::com::sun::star::awt; +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::util; + +using ::rtl::OUString; + +// ============================================================================ + +namespace { + +const double MM100_PER_INCH = 2540.0; +const double MM100_PER_POINT = MM100_PER_INCH / 72.0; +const double MM100_PER_TWIP = MM100_PER_POINT / 20.0; +const double MM100_PER_EMU = 1.0 / 360.0; + +// ---------------------------------------------------------------------------- + +/** Returns true, if the passed year is a leap year. */ +inline sal_Int32 lclIsLeapYear( sal_Int32 nYear ) +{ + return ((nYear % 4) == 0) && (((nYear % 100) != 0) || ((nYear % 400) == 0)); +} + +void lclSkipYearBlock( sal_Int32& ornDays, sal_uInt16& ornYear, sal_Int32 nDaysInBlock, sal_Int32 nYearsPerBlock, sal_Int32 nMaxBlocks ) +{ + sal_Int32 nBlocks = ::std::min< sal_Int32 >( ornDays / nDaysInBlock, nMaxBlocks ); + ornYear = static_cast< sal_uInt16 >( ornYear + nYearsPerBlock * nBlocks ); + ornDays -= nBlocks * nDaysInBlock; +} + +/** Returns the number of days before the passed date, starting from the null + date 0000-Jan-01, using standard leap year conventions. */ +sal_Int32 lclGetDays( const Date& rDate ) +{ + // number of days in all full years before passed date including all leap days + sal_Int32 nDays = rDate.Year * 365 + ((rDate.Year + 3) / 4) - ((rDate.Year + 99) / 100) + ((rDate.Year + 399) / 400); + OSL_ENSURE( (1 <= rDate.Month) && (rDate.Month <= 12), "lclGetDays - invalid month" ); + OSL_ENSURE( (1 <= rDate.Day) && (rDate.Day <= 31), "lclGetDays - invalid day" ); // yes, this is weak... + if( (1 <= rDate.Month) && (rDate.Month <= 12) ) + { + // number of days at start of month jan feb mar apr may jun jul aug sep oct nov dec + static const sal_Int32 spnCumDays[] = { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 }; + // add number of days in full months before passed date + nDays += spnCumDays[ rDate.Month - 1 ]; + // add number of days from passed date (this adds one day too much) + nDays += rDate.Day; + /* Remove the one day added too much if there is no leap day before + the passed day in the passed year. This means: remove the day, if + we are in january or february (leap day not reached if existing), + or if the passed year is not a leap year. */ + if( (rDate.Month < 3) || !lclIsLeapYear( rDate.Year ) ) + --nDays; + } + return nDays; +} + +} // namespace + +// ---------------------------------------------------------------------------- + +UnitConverter::UnitConverter( const WorkbookHelper& rHelper ) : + WorkbookHelper( rHelper ), + maCoeffs( UNIT_ENUM_SIZE, 1.0 ), + mnNullDate( lclGetDays( Date( 30, 12, 1899 ) ) ) +{ + // initialize constant and default coefficients + const DeviceInfo& rDeviceInfo = getBaseFilter().getGraphicHelper().getDeviceInfo(); + maCoeffs[ UNIT_INCH ] = MM100_PER_INCH; + maCoeffs[ UNIT_POINT ] = MM100_PER_POINT; + maCoeffs[ UNIT_TWIP ] = MM100_PER_TWIP; + maCoeffs[ UNIT_EMU ] = MM100_PER_EMU; + maCoeffs[ UNIT_SCREENX ] = (rDeviceInfo.PixelPerMeterX > 0) ? (100000.0 / rDeviceInfo.PixelPerMeterX) : 50.0; + maCoeffs[ UNIT_SCREENY ] = (rDeviceInfo.PixelPerMeterY > 0) ? (100000.0 / rDeviceInfo.PixelPerMeterY) : 50.0; + maCoeffs[ UNIT_REFDEVX ] = 12.5; // default: 1 px = 0.125 mm + maCoeffs[ UNIT_REFDEVY ] = 12.5; // default: 1 px = 0.125 mm + maCoeffs[ UNIT_DIGIT ] = 200.0; // default: 1 digit = 2 mm + maCoeffs[ UNIT_SPACE ] = 100.0; // default 1 space = 1 mm + + // error code maps + addErrorCode( BIFF_ERR_NULL, CREATE_OUSTRING( "#NULL!" ) ); + addErrorCode( BIFF_ERR_DIV0, CREATE_OUSTRING( "#DIV/0!" ) ); + addErrorCode( BIFF_ERR_VALUE, CREATE_OUSTRING( "#VALUE!" ) ); + addErrorCode( BIFF_ERR_REF, CREATE_OUSTRING( "#REF!" ) ); + addErrorCode( BIFF_ERR_NAME, CREATE_OUSTRING( "#NAME?" ) ); + addErrorCode( BIFF_ERR_NUM, CREATE_OUSTRING( "#NUM!" ) ); + addErrorCode( BIFF_ERR_NA, CREATE_OUSTRING( "#NA" ) ); +} + +void UnitConverter::finalizeImport() +{ + PropertySet aDocProps( getDocument() ); + Reference< XDevice > xDevice( aDocProps.getAnyProperty( PROP_ReferenceDevice ), UNO_QUERY ); + if( xDevice.is() ) + { + // get reference device metric first, needed to get character widths below + DeviceInfo aInfo = xDevice->getInfo(); + maCoeffs[ UNIT_REFDEVX ] = 100000.0 / aInfo.PixelPerMeterX; + maCoeffs[ UNIT_REFDEVY ] = 100000.0 / aInfo.PixelPerMeterY; + + // get character widths from default font + if( const Font* pDefFont = getStyles().getDefaultFont().get() ) + { + // XDevice expects pixels in font descriptor, but font contains twips + FontDescriptor aDesc = pDefFont->getFontDescriptor(); + aDesc.Height = static_cast< sal_Int16 >( scaleValue( aDesc.Height, UNIT_TWIP, UNIT_REFDEVX ) + 0.5 ); + Reference< XFont > xFont = xDevice->getFont( aDesc ); + if( xFont.is() ) + { + // get maximum width of all digits + sal_Int32 nDigitWidth = 0; + for( sal_Unicode cChar = '0'; cChar <= '9'; ++cChar ) + nDigitWidth = ::std::max( nDigitWidth, scaleToMm100( xFont->getCharWidth( cChar ), UNIT_REFDEVX ) ); + if( nDigitWidth > 0 ) + maCoeffs[ UNIT_DIGIT ] = nDigitWidth; + // get width of space character + sal_Int32 nSpaceWidth = scaleToMm100( xFont->getCharWidth( ' ' ), UNIT_REFDEVX ); + if( nSpaceWidth > 0 ) + maCoeffs[ UNIT_SPACE ] = nSpaceWidth; + } + } + } +} + +void UnitConverter::finalizeNullDate( const Date& rNullDate ) +{ + // convert the nulldate to number of days since 0000-Jan-01 + mnNullDate = lclGetDays( rNullDate ); +} + +// conversion ----------------------------------------------------------------- + +double UnitConverter::scaleValue( double fValue, Unit eFromUnit, Unit eToUnit ) const +{ + return (eFromUnit == eToUnit) ? fValue : (fValue * getCoefficient( eFromUnit ) / getCoefficient( eToUnit )); +} + +sal_Int32 UnitConverter::scaleToMm100( double fValue, Unit eUnit ) const +{ + return static_cast< sal_Int32 >( fValue * getCoefficient( eUnit ) + 0.5 ); +} + +double UnitConverter::scaleFromMm100( sal_Int32 nMm100, Unit eUnit ) const +{ + return static_cast< double >( nMm100 ) / getCoefficient( eUnit ); +} + +double UnitConverter::calcSerialFromDateTime( const DateTime& rDateTime ) const +{ + sal_Int32 nDays = lclGetDays( Date( rDateTime.Day, rDateTime.Month, rDateTime.Year ) ) - mnNullDate; + OSL_ENSURE( nDays >= 0, "UnitConverter::calcDateTimeSerial - invalid date" ); + OSL_ENSURE( (rDateTime.Hours <= 23) && (rDateTime.Minutes <= 59) && (rDateTime.Seconds <= 59), "UnitConverter::calcDateTimeSerial - invalid time" ); + return nDays + rDateTime.Hours / 24.0 + rDateTime.Minutes / 1440.0 + rDateTime.Seconds / 86400.0; +} + +DateTime UnitConverter::calcDateTimeFromSerial( double fSerial ) const +{ + DateTime aDateTime( 0, 0, 0, 0, 1, 1, 0 ); + double fDays = 0.0; + double fTime = modf( fSerial, &fDays ); + + // calculate date from number of days with O(1) complexity + sal_Int32 nDays = getLimitedValue< sal_Int32, double >( fDays + mnNullDate, 0, 3652424 ); + // skip year 0, assumed to be a leap year. By starting at year 1, leap years can be handled easily + if( nDays >= 366 ) { ++aDateTime.Year; nDays -= 366; } + // skip full blocks of 400, 100, 4 years, and remaining full years + lclSkipYearBlock( nDays, aDateTime.Year, 400 * 365 + 97, 400, 24 ); + lclSkipYearBlock( nDays, aDateTime.Year, 100 * 365 + 24, 100, 3 ); + lclSkipYearBlock( nDays, aDateTime.Year, 4 * 365 + 1, 4, 24 ); + lclSkipYearBlock( nDays, aDateTime.Year, 365, 1, 3 ); + // skip full months of current year + static const sal_Int32 spnDaysInMonth[] = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }; + if( (nDays >= 59) && !lclIsLeapYear( aDateTime.Year ) ) ++nDays; + const sal_Int32* pnDaysInMonth = spnDaysInMonth; + while( *pnDaysInMonth >= nDays ) { ++aDateTime.Month; nDays -= *pnDaysInMonth; ++pnDaysInMonth; } + aDateTime.Day = static_cast< sal_uInt16 >( nDays + 1 ); + + // calculate time from fractional part of serial + sal_Int32 nTime = getLimitedValue< sal_Int32, double >( fTime * 86400, 0, 86399 ); + aDateTime.Seconds = static_cast< sal_uInt16 >( nTime % 60 ); + nTime /= 60; + aDateTime.Minutes = static_cast< sal_uInt16 >( nTime % 60 ); + aDateTime.Hours = static_cast< sal_uInt16 >( nTime / 60 ); + + return aDateTime; +} + +OUString UnitConverter::calcOoxErrorCode( sal_uInt8 nErrorCode ) const +{ + BiffErrorCodeMap::const_iterator aIt = maBiffErrCodes.find( nErrorCode ); + return (aIt == maBiffErrCodes.end()) ? CREATE_OUSTRING( "#N/A" ) : aIt->second; +} + +sal_uInt8 UnitConverter::calcBiffErrorCode( const OUString& rErrorCode ) const +{ + OoxErrorCodeMap::const_iterator aIt = maOoxErrCodes.find( rErrorCode ); + return (aIt == maOoxErrCodes.end()) ? BIFF_ERR_NA : aIt->second; +} + +void UnitConverter::addErrorCode( sal_uInt8 nErrorCode, const OUString& rErrorCode ) +{ + maOoxErrCodes[ rErrorCode ] = nErrorCode; + maBiffErrCodes[ nErrorCode ] = rErrorCode; +} + +double UnitConverter::getCoefficient( Unit eUnit ) const +{ + OSL_ENSURE( static_cast< size_t >( eUnit ) < UNIT_ENUM_SIZE, "UnitConverter::getCoefficient - invalid unit" ); + return maCoeffs[ static_cast< size_t >( eUnit ) ]; +} + +// ============================================================================ + +} // namespace xls +} // namespace oox + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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