kde-playground/kdepimlibs/kabc/geo.cpp

/*
    This file is part of libkabc.
    Copyright (c) 2001 Cornelius Schumacher <schumacher@kde.org>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library 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
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/

#include "geo.h"

#include <QtCore/QDataStream>
#include <QtCore/QSharedData>

using namespace KABC;

class Geo::Private : public QSharedData
{
  public:
    Private()
      : mLatitude( 91 ), mLongitude( 181 ),
        mValidLatitude( false ), mValidLongitude( false )
    {
    }

    Private( const Private &other )
      : QSharedData( other )
    {
      mLatitude = other.mLatitude;
      mLongitude = other.mLongitude;
      mValidLatitude = other.mValidLatitude;
      mValidLongitude = other.mValidLongitude;
    }

    float mLatitude;
    float mLongitude;

    bool mValidLatitude;
    bool mValidLongitude;
};

Geo::Geo()
  : d( new Private )
{
}

Geo::Geo( float latitude, float longitude )
  : d( new Private )
{
  setLatitude( latitude );
  setLongitude( longitude );
}

Geo::Geo( const Geo &other )
  : d( other.d )
{
}

Geo::~Geo()
{
}

void Geo::setLatitude( float latitude )
{
  if ( latitude >= -90 && latitude <= 90 ) {
    d->mLatitude = latitude;
    d->mValidLatitude = true;
  } else {
    d->mLatitude = 91;
    d->mValidLatitude = false;
  }
}

float Geo::latitude() const
{
  return d->mLatitude;
}

void Geo::setLongitude( float longitude )
{
  if ( longitude >= -180 && longitude <= 180 ) {
    d->mLongitude = longitude;
    d->mValidLongitude = true;
  } else {
    d->mLongitude = 181;
    d->mValidLongitude = false;
  }
}

float Geo::longitude() const
{
  return d->mLongitude;
}

bool Geo::isValid() const
{
  return d->mValidLatitude && d->mValidLongitude;
}

bool Geo::operator==( const Geo &other ) const
{
  if ( !other.isValid() && !isValid() ) {
    return true;
  }

  if ( !other.isValid() || !isValid() ) {
    return false;
  }

  if ( other.d->mLatitude == d->mLatitude && other.d->mLongitude == d->mLongitude ) {
    return true;
  }

  return false;
}

bool Geo::operator!=( const Geo &other ) const
{
  return !( *this == other );
}

Geo &Geo::operator=( const Geo &other )
{
  if ( this != &other ) {
    d = other.d;
  }

  return *this;
}

QString Geo::toString() const
{
  QString str;

  str += QLatin1String( "Geo {\n" );
  str += QString::fromLatin1( "  Valid: %1\n" ).
         arg( isValid() ? QLatin1String( "true" ) : QLatin1String( "false" ) );
  str += QString::fromLatin1( "  Latitude: %1\n" ).arg( d->mLatitude );
  str += QString::fromLatin1( "  Longitude: %1\n" ).arg( d->mLongitude );
  str += QLatin1String( "}\n" );

  return str;
}

QDataStream &KABC::operator<<( QDataStream &s, const Geo &geo )
{
    return s << geo.d->mLatitude << geo.d->mValidLatitude
             << geo.d->mLongitude << geo.d->mValidLongitude;
}

QDataStream &KABC::operator>>( QDataStream &s, Geo &geo )
{
    s >> geo.d->mLatitude >> geo.d->mValidLatitude
      >> geo.d->mLongitude >> geo.d->mValidLongitude;

    return s;
}