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/*
* Gypsy
*
* A simple to use and understand GPSD replacement
* that uses D-Bus, GLib and memory allocations
*
* Author: Iain Holmes <iain@gnome.org>
* Copyright (C) 2007 Iain Holmes
* Copyright (C) 2007 Openedhand Ltd
*
* This example code is in the public domain.
*/
/*
* simple-gps-gypsy: A simple gps example using the libgypsy library.
*/
#include <gypsy/gypsy-control.h>
#include <gypsy/gypsy-device.h>
#include <gypsy/gypsy-position.h>
#include <gypsy/gypsy-course.h>
GypsyControl *control = NULL;
static void
position_changed (GypsyPosition *position,
GypsyPositionFields fields_set,
int timestamp,
double latitude,
double longitude,
double altitude,
gpointer userdata)
{
g_print ("%d: %2f, %2f (%1fm)\n", timestamp,
(fields_set & GYPSY_POSITION_FIELDS_LATITUDE) ? latitude :-1.0,
(fields_set & GYPSY_POSITION_FIELDS_LONGITUDE) ? longitude :-1.0,
(fields_set & GYPSY_POSITION_FIELDS_ALTITUDE) ? altitude : -1.0);
}
static void
course_changed (GypsyCourse *course,
GypsyCourseFields fields_set,
int timestamp,
double speed,
double direction,
double climb,
gpointer userdata)
{
g_print ("%d: %2f, %2f, %2fm/s\n", timestamp,
(fields_set & GYPSY_COURSE_FIELDS_SPEED) ? speed : -1.0,
(fields_set & GYPSY_COURSE_FIELDS_DIRECTION) ? direction : -1.0,
(fields_set & GYPSY_COURSE_FIELDS_CLIMB) ? climb : -1.0);
}
int
main (int argc,
char **argv)
{
GMainLoop *mainloop;
GypsyDevice *device;
GypsyPosition *position;
GypsyCourse *course;
GError *error = NULL;
char *path;
if (argc < 2) {
g_print ("Usage: %s device\n", argv[0]);
return 0;
}
g_type_init ();
control = gypsy_control_get_default ();
path = gypsy_control_create (control, argv[1], &error);
if (path == NULL) {
g_warning ("Error creating client for %s: %s", argv[1],
error->message);
g_error_free (error);
return 0;
}
device = gypsy_device_new (path);
position = gypsy_position_new (path);
g_signal_connect (position, "position-changed",
G_CALLBACK (position_changed), NULL);
course = gypsy_course_new (path);
g_signal_connect (course, "course-changed",
G_CALLBACK (course_changed), NULL);
gypsy_device_start (device, &error);
if (error != NULL) {
g_warning ("Error starting %s: %s", argv[1],
error->message);
g_error_free (error);
return 0;
}
mainloop = g_main_loop_new (NULL, FALSE);
g_main_loop_run (mainloop);
/* FIXME: Need some way to quit the mainloop */
g_object_unref (control);
return 0;
}
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