00001 /*************************************************************************** 00002 ** 00003 ** This file is part of WaranCore. 00004 ** 00005 ** This file may be distributed and/or modified under the terms of the 00006 ** GNU General Public License version 2 or 3 as published by the Free 00007 ** Software Foundation and appearing in the file LICENSE.GPL included 00008 ** in the packaging of this file. 00009 ** 00010 ** This file is distributed in the hope that it will be useful, but WITHOUT 00011 ** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00012 ** FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 00013 ** more details. 00014 ** 00015 ** You should have received a copy of the GNU General Public License 00016 ** along with this program. If not, see <http://www.gnu.org/licenses/>. 00017 ** 00018 ** See http://www.geopsy.org for more information. 00019 ** 00020 ** Created : 2009-07-01 00021 ** Authors: 00022 ** Marc Wathelet 00023 ** Marc Wathelet (LGIT, Grenoble, France) 00024 ** 00025 ***************************************************************************/ 00026 00027 #ifndef GPSBLOCK_H 00028 #define GPSBLOCK_H 00029 00030 #include "WaranCoreDLLExport.h" 00031 00032 namespace WaranCore { 00033 00034 class GpsFix; 00035 00036 #define GPSBLOCK_VERSION 1 00037 00038 class WARANCORE_EXPORT GpsBlock 00039 { 00040 public: 00041 GpsBlock(const char * bytes); 00042 00043 unsigned char index() const; 00044 unsigned char state() const; 00045 unsigned char totalSize() const; 00046 void decode(GpsFix& fix) const; 00047 00048 static char * encode(unsigned char index, const GpsFix& oldFix, 00049 const GpsFix& newdFix, unsigned int& byteCount); 00050 private: 00051 static inline unsigned int encode(char *& ptr, unsigned char flagOffset, int oldValue, int newValue); 00052 static inline unsigned int encode(char *& ptr, unsigned char flagOffset, short oldValue, short newValue); 00053 static inline unsigned int encode(char *& ptr, unsigned char flagOffset, char oldValue, char newValue); 00054 00055 static inline unsigned char size(unsigned int flags, unsigned char flagOffset); 00056 inline void decode(const char *& ptr, char size, int& value) const; 00057 inline void decode(const char *& ptr, char size, unsigned short& value) const; 00058 inline void decode(const char *& ptr, char size, unsigned char& value) const; 00059 enum Offsets {Longitude=10, Latitude=12, Altitude=14, HorizontalAccuracy=16, 00060 HorizontalDop=18, NorthingDop=20, EastingDop=22, 00061 SateliteCount=24}; 00062 const char * _bytes; 00063 char _sizes[8]; 00064 }; 00065 00066 } // namespace WaranCore 00067 00068 #endif // GPSBLOCK_H
