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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include "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/token/properties.hxx>
#include "stylesbuffer.hxx"
namespace oox {
namespace xls {
using namespace ::com::sun::star;
using namespace ::com::sun::star::awt;
using namespace ::com::sun::star::uno;
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 bool lclIsLeapYear( sal_Int32 nYear )
{
return ((nYear % 4) == 0) && (((nYear % 100) != 0) || ((nYear % 400) == 0));
}
void lclSkipYearBlock( sal_Int32& ornDays, sal_Int16& ornYear, sal_Int32 nDaysInBlock, sal_Int32 nYearsPerBlock, sal_Int32 nMaxBlocks )
{
sal_Int32 nBlocks = ::std::min< sal_Int32 >( ornDays / nDaysInBlock, nMaxBlocks );
ornYear = static_cast< sal_Int16 >( 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 util::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( util::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, "#NULL!" );
addErrorCode( BIFF_ERR_DIV0, "#DIV/0!" );
addErrorCode( BIFF_ERR_VALUE, "#VALUE!" );
addErrorCode( BIFF_ERR_REF, "#REF!" );
addErrorCode( BIFF_ERR_NAME, "#NAME?" );
addErrorCode( BIFF_ERR_NUM, "#NUM!" );
addErrorCode( BIFF_ERR_NA, "#N/A" );
}
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();
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_TWIP ) );
if( nDigitWidth > 0 )
maCoeffs[ UNIT_DIGIT ] = nDigitWidth;
// get width of space character
sal_Int32 nSpaceWidth = scaleToMm100( xFont->getCharWidth( ' ' ), UNIT_TWIP );
if( nSpaceWidth > 0 )
maCoeffs[ UNIT_SPACE ] = nSpaceWidth;
}
}
}
}
void UnitConverter::finalizeNullDate( const util::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 util::DateTime& rDateTime ) const
{
sal_Int32 nDays = lclGetDays( util::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;
}
util::DateTime UnitConverter::calcDateTimeFromSerial( double fSerial ) const
{
util::DateTime aDateTime( 0, 0, 0, 0, 1, 1, 0, false );
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;
}
sal_uInt8 UnitConverter::calcBiffErrorCode( const OUString& rErrorCode ) const
{
OoxErrorCodeMap::const_iterator aIt = maOoxErrCodes.find( rErrorCode );
return (aIt == maOoxErrCodes.end()) ? BIFF_ERR_NA : aIt->second;
}
const OUString& UnitConverter::calcErrorString( sal_uInt8 nErrorCode ) const
{
OoxErrorCodeMap::const_iterator iFail( maOoxErrCodes.end());
for (OoxErrorCodeMap::const_iterator aIt( maOoxErrCodes.begin()); aIt != maOoxErrCodes.end(); ++aIt)
{
if (aIt->second == nErrorCode)
return aIt->first;
if (aIt->second == BIFF_ERR_NA)
iFail = aIt;
}
assert(iFail != maOoxErrCodes.end()); // BIFF_ERR_NA really should be in the map..
return iFail->first;
}
void UnitConverter::addErrorCode( sal_uInt8 nErrorCode, const OUString& rErrorCode )
{
maOoxErrCodes[ rErrorCode ] = nErrorCode;
}
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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