[FEATURE]: add classes for live GPS tracking in core

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@12685 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: mhugent

src/core/CMakeLists.txt

@@ -5,6 +5,20 @@
 
 SET(QGIS_CORE_SRCS
 
+  gps/qextserialport.cpp
+  gps/qextserialbase.cpp
+  gps/qgsgpsconnection.cpp
+  gps/qgsgpsconnectionregistry.cpp
+  gps/qgsgpstrackerthread.cpp
+  gps/qgsnmeaconnection.cpp
+  gps/parse.c
+  gps/sentence.c
+  gps/info.c
+  gps/time.c
+  gps/gmath.c
+  gps/tok.c
+  gps/context.c
+
   symbology-ng/qgssymbolv2.cpp
   symbology-ng/qgssymbollayerv2.cpp
   symbology-ng/qgssymbollayerv2registry.cpp
@@ -130,6 +144,16 @@ SET(QGIS_CORE_SRCS
   spatialindex/qgsspatialindex.cpp
 
   )
+  
+IF(WIN32)
+SET(QGIS_CORE_SRCS
+    ${QGIS_CORE_SRCS}
+    gps/win_qextserialport.cpp)
+ELSE(WIN32)
+    SET(QGIS_CORE_SRCS
+    ${QGIS_CORE_SRCS}
+    gps/posix_qextserialport.cpp)
+ENDIF(WIN32)
 
 IF (WITH_INTERNAL_SPATIALITE)
   IF (WIN32 OR APPLE)
@@ -206,6 +230,8 @@ composer/qgscomposeritemgroup.h
 composer/qgscomposershape.h
 composer/qgscomposition.h
 composer/qgslegendmodel.h
+gps/qgsgpsconnection.h
+gps/qgsnmeaconnection.h
 symbology/qgsmarkercatalogue.h
 raster/qgsrasterlayer.h
 )

src/core/gps/config.h

@@ -0,0 +1,51 @@
+/*
+ *
+ * NMEA library
+ * URL: http://nmea.sourceforge.net
+ * Author: Tim (xtimor@gmail.com)
+ * Licence: http://www.gnu.org/licenses/lgpl.html
+ * $Id: config.h 17 2008-03-11 11:56:11Z xtimor $
+ *
+ */
+
+#ifndef __NMEA_CONFIG_H__
+#define __NMEA_CONFIG_H__
+
+#define NMEA_VERSION        ("0.5.3")
+#define NMEA_VERSION_MAJOR  (0)
+#define NMEA_VERSION_MINOR  (5)
+#define NMEA_VERSION_PATCH  (3)
+
+#define NMEA_CONVSTR_BUF    (256)
+#define NMEA_TIMEPARSE_BUF  (256)
+
+#if defined(WINCE) || defined(UNDER_CE)
+#   define  NMEA_CE
+#endif
+
+#if defined(WIN32) || defined(NMEA_CE)
+#   define  NMEA_WIN
+#else
+#   define  NMEA_UNI
+#endif
+
+#if defined(NMEA_WIN) && (_MSC_VER >= 1400)
+# pragma warning(disable: 4996) /* declared deprecated */
+#endif
+
+#if defined(_MSC_VER)
+# define NMEA_POSIX(x)  _##x
+# define NMEA_INLINE    __inline
+#else
+# define NMEA_POSIX(x)  x
+# define NMEA_INLINE    inline
+#endif
+
+#if !defined(NDEBUG) && !defined(NMEA_CE)
+#   include <assert.h>
+#   define NMEA_ASSERT(x)   assert(x)
+#else
+#   define NMEA_ASSERT(x)
+#endif
+
+#endif /* __NMEA_CONFIG_H__ */

src/core/gps/context.c

@@ -0,0 +1,68 @@
+/*
+ *
+ * NMEA library
+ * URL: http://nmea.sourceforge.net
+ * Author: Tim (xtimor@gmail.com)
+ * Licence: http://www.gnu.org/licenses/lgpl.html
+ * $Id: context.c 17 2008-03-11 11:56:11Z xtimor $
+ *
+ */
+
+#include "context.h"
+
+#include <string.h>
+#include <stdarg.h>
+#include <stdio.h>
+
+nmeaPROPERTY * nmea_property()
+{
+  static nmeaPROPERTY prop =
+  {
+    0, 0, NMEA_DEF_PARSEBUFF
+  };
+
+  return &prop;
+}
+
+void nmea_trace( const char *str, ... )
+{
+  int size;
+  va_list arg_list;
+  char buff[NMEA_DEF_PARSEBUFF];
+  nmeaTraceFunc func = nmea_property()->trace_func;
+
+  if ( func )
+  {
+    va_start( arg_list, str );
+    size = NMEA_POSIX( vsnprintf )( &buff[0], NMEA_DEF_PARSEBUFF - 1, str, arg_list );
+    va_end( arg_list );
+
+    if ( size > 0 )
+      ( *func )( &buff[0], size );
+  }
+}
+
+void nmea_trace_buff( const char *buff, int buff_size )
+{
+  nmeaTraceFunc func = nmea_property()->trace_func;
+  if ( func && buff_size )
+    ( *func )( buff, buff_size );
+}
+
+void nmea_error( const char *str, ... )
+{
+  int size;
+  va_list arg_list;
+  char buff[NMEA_DEF_PARSEBUFF];
+  nmeaErrorFunc func = nmea_property()->error_func;
+
+  if ( func )
+  {
+    va_start( arg_list, str );
+    size = NMEA_POSIX( vsnprintf )( &buff[0], NMEA_DEF_PARSEBUFF - 1, str, arg_list );
+    va_end( arg_list );
+
+    if ( size > 0 )
+      ( *func )( &buff[0], size );
+  }
+}

src/core/gps/context.h

@@ -0,0 +1,45 @@
+/*
+ *
+ * NMEA library
+ * URL: http://nmea.sourceforge.net
+ * Author: Tim (xtimor@gmail.com)
+ * Licence: http://www.gnu.org/licenses/lgpl.html
+ * $Id: context.h 4 2007-08-27 13:11:03Z xtimor $
+ *
+ */
+
+#ifndef __NMEA_CONTEXT_H__
+#define __NMEA_CONTEXT_H__
+
+#include "config.h"
+
+#define NMEA_DEF_PARSEBUFF  (1024)
+#define NMEA_MIN_PARSEBUFF  (256)
+
+#ifdef  __cplusplus
+extern "C"
+{
+#endif
+
+  typedef void ( *nmeaTraceFunc )( const char *str, int str_size );
+  typedef void ( *nmeaErrorFunc )( const char *str, int str_size );
+
+  typedef struct _nmeaPROPERTY
+  {
+    nmeaTraceFunc   trace_func;
+    nmeaErrorFunc   error_func;
+    int             parse_buff_size;
+
+  } nmeaPROPERTY;
+
+  nmeaPROPERTY * nmea_property();
+
+  void nmea_trace( const char *str, ... );
+  void nmea_trace_buff( const char *buff, int buff_size );
+  void nmea_error( const char *str, ... );
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif /* __NMEA_CONTEXT_H__ */