144 lines
4.6 KiB
C++
144 lines
4.6 KiB
C++
/***************************************************************************
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* Copyright (c) 2011 Juergen Riegel *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#ifndef BASE_Unit_H
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#define BASE_Unit_H
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#ifdef _MSC_VER
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# include <boost/cstdint.hpp>
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#else
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# include <stdint.h>
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#endif
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#include <string>
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#include <QString>
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namespace Base {
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#define UnitSignatureLengthBits 4
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#define UnitSignatureMassBits 4
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#define UnitSignatureTimeBits 4
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#define UnitSignatureElectricCurrentBits 4
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#define UnitSignatureThermodynamicTemperatureBits 4
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#define UnitSignatureAmountOfSubstanceBits 4
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#define UnitSignatureLuminoseIntensityBits 4
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#define UnitSignatureAngleBits 4
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#define UnitSignatureDensityBits 4
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struct UnitSignature{
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int32_t Length:UnitSignatureLengthBits;
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int32_t Mass:UnitSignatureMassBits;
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int32_t Time:UnitSignatureTimeBits;
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int32_t ElectricCurrent:UnitSignatureElectricCurrentBits;
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int32_t ThermodynamicTemperature:UnitSignatureThermodynamicTemperatureBits;
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int32_t AmountOfSubstance:UnitSignatureAmountOfSubstanceBits;
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int32_t LuminoseIntensity:UnitSignatureLuminoseIntensityBits;
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int32_t Angle:UnitSignatureAngleBits;
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int32_t Density:UnitSignatureDensityBits;
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};
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/**
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* The Unit class.
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*/
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class BaseExport Unit
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{
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public:
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/// default constructor
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Unit(int8_t Length,int8_t Mass=0,int8_t Time=0,int8_t ElectricCurrent=0,int8_t ThermodynamicTemperature=0,int8_t AmountOfSubstance=0,int8_t LuminoseIntensity=0,int8_t Angle=0, int8_t Density=0);
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Unit(void);
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Unit(const Unit&);
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Unit(const QString& expr);
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/// Destruction
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~Unit () {}
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/** Operators. */
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//@{
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inline Unit& operator *=(const Unit& that);
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inline Unit& operator /=(const Unit& that);
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Unit operator *(const Unit&) const;
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Unit operator /(const Unit&) const;
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bool operator ==(const Unit&) const;
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bool operator !=(const Unit&that) const {return !(*this == that);}
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Unit& operator =(const Unit&);
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Unit pow(char exp)const;
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//@}
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/// get the unit signature
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const UnitSignature & getSignature(void)const {return Sig;}
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bool isEmpty(void)const;
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QString getString(void) const;
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/// get the type as an string such as "Area", "Length" or "Pressure".
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QString getTypeString(void) const;
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/** Predefined Unit types. */
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//@{
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/// Length unit
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static Unit Length;
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/// Mass unit
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static Unit Mass;
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/// Angle
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static Unit Angle;
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static Unit Density;
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static Unit Area;
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static Unit Volume;
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static Unit TimeSpan;
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static Unit Velocity;
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static Unit Acceleration;
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static Unit Temperature;
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static Unit ElectricCurrent;
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static Unit AmountOfSubstance;
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static Unit LuminoseIntensity;
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static Unit Stress;
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static Unit Pressure;
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static Unit Force;
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static Unit Work;
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static Unit Power;
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static Unit ThermalConductivity;
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static Unit ThermalExpansionCoefficient;
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static Unit SpecificHeat;
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static Unit ThermalTransferCoefficient;
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//@}
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protected:
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UnitSignature Sig;
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};
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inline Unit& Unit::operator *=(const Unit& that)
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{
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*this = *this * that;
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return *this;
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}
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inline Unit& Unit::operator /=(const Unit& that)
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{
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*this = *this / that;
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return *this;
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}
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} // namespace Base
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#endif // BASE_Unit_H
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