//  Distance.hpp
//
//  Copyright (C) 2016  Jaye Evins <evins@snaught.com>
//
//  This file is part of gLabels-qt.
//
//  gLabels-qt is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  gLabels-qt 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 General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
//

#ifndef model_Distance_hpp
#define model_Distance_hpp


#include "Units.hpp"

#include <QCoreApplication>
#include <QString>
#include <QtMath>


namespace glabels::model
{

        class Distance
        {
                Q_DECLARE_TR_FUNCTIONS(Distance)

        public:
                Distance();
                Distance( double d, Units::Enum unitsEnum = Units::PT );
                Distance( double d, Units units );
                Distance( double d, const QString& unitsId );

                static Distance pt( double dPts );
                static Distance in( double dInches );
                static Distance mm( double dMm );
                static Distance cm( double dCm );
                static Distance pc( double dPicas );
                static Distance fromString( const QString& string );


                double pt() const;
                double in() const;
                double mm() const;
                double cm() const;
                double pc() const;
                double inUnits( Units units ) const;
                double inUnits( Units::Enum unitsEnum ) const;
                double inUnits( const QString& unitsId ) const;


                QString toString( Units units ) const;
                QString toString( Units::Enum unitsEnum ) const;
                QString toString( const QString& unitsId ) const;

                Distance& operator+=( Distance d );
                Distance& operator-=( Distance d );
                Distance& operator*=( double f );
                Distance operator-();

                friend inline Distance operator+( Distance d1, Distance d2 );
                friend inline Distance operator-( Distance d1, Distance d2 );
                friend inline Distance operator*( double x, Distance d );
                friend inline Distance operator*( Distance d, double x );
                friend inline double   operator/( Distance d1, Distance d2 );
                friend inline Distance operator/( Distance d, double x );

                friend inline bool operator<( Distance d1, Distance d2 );
                friend inline bool operator<=( Distance d1, Distance d2 );
                friend inline bool operator>( Distance d1, Distance d2 );
                friend inline bool operator>=( Distance d1, Distance d2 );
                friend inline bool operator==( Distance d1, Distance d2 );
                friend inline bool operator!=( Distance d1, Distance d2 );

                friend inline Distance fabs( Distance d );
                friend inline Distance min( Distance d1, Distance d2 );
                friend inline Distance max( Distance d1, Distance d2 );
                friend inline Distance fmod( Distance d1, Distance d2 );


        private:
                double mDPts{ 0 };

        };

}


// Debugging support
QDebug operator<<( QDebug dbg, const glabels::model::Distance distance );


//
// Inline methods
//

#include "Constants.hpp"

namespace glabels::model
{

        inline Distance::Distance() : mDPts(0)
        {
        }


        inline Distance Distance::pt( double dPts )
        {
                Distance d;
                d.mDPts = dPts;
                return d;
        }


        inline Distance Distance::in( double dInches )
        {
                Distance d;
                d.mDPts = dInches * PTS_PER_INCH;
                return d;
        }


        inline Distance Distance::mm( double dMm )
        {
                Distance d;
                d.mDPts = dMm * PTS_PER_MM;
                return d;
        }


        inline Distance Distance::cm( double dCm )
        {
                Distance d;
                d.mDPts = dCm * PTS_PER_CM;
                return d;
        }


        inline Distance Distance::pc( double dPicas )
        {
                Distance d;
                d.mDPts = dPicas * PTS_PER_PICA;
                return d;
        }


        inline double Distance::pt() const
        {
                return mDPts;
        }


        inline double Distance::in() const
        {
                return mDPts / PTS_PER_INCH;
        }


        inline double Distance::mm() const
        {
                return mDPts / PTS_PER_MM;
        }


        inline double Distance::cm() const
        {
                return mDPts / PTS_PER_CM;
        }


        inline double Distance::pc() const
        {
                return mDPts / PTS_PER_PICA;
        }


        inline Distance& Distance::operator+=( Distance d )
        {
                mDPts += d.mDPts;
                return *this;
        }


        inline Distance& Distance::operator-=( Distance d )
        {
                mDPts -= d.mDPts;
                return *this;
        }


        inline Distance& Distance::operator*=( double f )
        {
                mDPts *= f;
                return *this;
        }


        inline Distance Distance::operator-()
        {
                return Distance::pt( -mDPts );
        }


        inline Distance operator+( Distance d1, Distance d2 )
        {
                return Distance::pt( d1.mDPts + d2.mDPts );
        }


        inline Distance operator-( Distance d1, Distance d2 )
        {
                return Distance::pt( d1.mDPts - d2.mDPts );
        }


        inline Distance operator*( double x, Distance d )
        {
                return Distance::pt( x * d.mDPts );
        }


        inline Distance operator*( Distance d, double x )
        {
                return Distance::pt( d.mDPts * x );
        }


        inline double operator/( Distance d1, Distance d2 )
        {
                return d1.mDPts / d2.mDPts;
        }


        inline Distance operator/( Distance d, double x )
        {
                return Distance::pt( d.mDPts / x );
        }


        inline bool operator<( Distance d1, Distance d2 )
        {
                return d1.mDPts < d2.mDPts;
        }


        inline bool operator<=( Distance d1, Distance d2 )
        {
                return d1.mDPts <= d2.mDPts;
        }


        inline bool operator>( Distance d1, Distance d2 )
        {
                return d1.mDPts > d2.mDPts;
        }


        inline bool operator>=( Distance d1, Distance d2 )
        {
                return d1.mDPts >= d2.mDPts;
        }


        inline bool operator==( Distance d1, Distance d2 )
        {
                return d1.mDPts == d2.mDPts;
        }


        inline bool operator!=( Distance d1, Distance d2 )
        {
                return d1.mDPts != d2.mDPts;
        }


        inline Distance fabs( Distance d )
        {
                return Distance::pt( qFabs( d.mDPts ) );
        }


        inline Distance min( Distance d1, Distance d2 )
        {
                return (d1.mDPts < d2.mDPts) ? d1 : d2;
        }


        inline Distance max( Distance d1, Distance d2 )
        {
                return (d1.mDPts > d2.mDPts) ? d1 : d2;
        }


        inline Distance fmod( Distance d1, Distance d2 )
        {
                return Distance::pt( std::fmod( d1.mDPts, d2.mDPts ) );
        }

}


#endif // model_Distance_hpp