kabc Library: geo.cpp Source File (kabc Library)

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# geo.cpp

    00001 /*
    00002     This file is part of libkabc.
    00003     Copyright (c) 2001 Cornelius Schumacher <schumacher@kde.org>
    00004
    00005     This library is free software; you can redistribute it and/or
    00006     modify it under the terms of the GNU Library General Public
    00007     License as published by the Free Software Foundation; either
    00008     version 2 of the License, or (at your option) any later version.
    00009
    00010     This library is distributed in the hope that it will be useful,
    00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
    00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00013     Library General Public License for more details.
    00014
    00015     You should have received a copy of the GNU Library General Public License
    00016     along with this library; see the file COPYING.LIB.  If not, write to
    00017     the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00018     Boston, MA 02111-1307, USA.
    00019 */
    00020
    00021 #include <qdatastream.h>
    00022
    00023 #include "geo.h"
    00024
    00025 using namespace KABC;
    00026
    00027 Geo::Geo()
    00028   : mLatitude( 91 ), mLongitude( 181 ), mValidLat( false ), mValidLong( false )
    00029 {
    00030 }
    00031
    00032 Geo::Geo( float latitude, float longitude )
    00033 {
    00034   setLatitude( latitude );
    00035   setLongitude( longitude );
    00036 }
    00037
    00038 void Geo::setLatitude( float latitude )
    00039 {
    00040   if ( latitude >= -90 && latitude <= 90 ) {
    00041     mLatitude = latitude;
    00042     mValidLat = true;
    00043   } else {
    00044     mLatitude = 91;
    00045     mValidLat = false;
    00046   }
    00047 }
    00048
    00049 float Geo::latitude() const
    00050 {
    00051   return mLatitude;
    00052 }
    00053
    00054 void Geo::setLongitude( float longitude)
    00055 {
    00056   if ( longitude >= -180 && longitude <= 180 ) {
    00057     mLongitude = longitude;
    00058     mValidLong = true;
    00059   } else {
    00060     mLongitude = 181;
    00061     mValidLong = false;
    00062   }
    00063 }
    00064
    00065 float Geo::longitude() const
    00066 {
    00067   return mLongitude;
    00068 }
    00069
    00070 bool Geo::isValid() const
    00071 {
    00072   return mValidLat && mValidLong;
    00073 }
    00074
    00075 bool Geo::operator==( const Geo &g ) const
    00076 {
    00077   if ( !g.isValid() && !isValid() ) return true;
    00078   if ( !g.isValid() || !isValid() ) return false;
    00079   if ( g.mLatitude == mLatitude && g.mLongitude == mLongitude ) return true;
    00080   return false;
    00081 }
    00082
    00083 bool Geo::operator!=( const Geo &g ) const
    00084 {
    00085   if ( !g.isValid() && !isValid() ) return false;
    00086   if ( !g.isValid() || !isValid() ) return true;
    00087   if ( g.mLatitude == mLatitude && g.mLongitude == mLongitude ) return false;
    00088   return true;
    00089 }
    00090
    00091 QString Geo::asString() const
    00092 {
    00093   return "(" + QString::number(mLatitude) + "," + QString::number(mLongitude) + ")";
    00094 }
    00095
    00096 QDataStream &KABC::operator<<( QDataStream &s, const Geo &geo )
    00097 {
    00098     return s << (float)geo.mLatitude << (float)geo.mLongitude;
    00099 }
    00100
    00101 QDataStream &KABC::operator>>( QDataStream &s, Geo &geo )
    00102 {
    00103     s >> geo.mLatitude >> geo.mLongitude;
    00104
    00105     geo.mValidLat = true;
    00106     geo.mValidLong = true;
    00107
    00108     return s;
    00109 }

This file is part of the documentation for kabc Library Version 3.4.1.
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