Minor thingies..

[speedometer] / util.c

diff --git a/util.c b/util.c
index d5a6df6..a20f0b1 100644 (file)
--- a/util.c
+++ b/util.c
@@ -14,32 +14,106 @@
 
        You should have received a copy of the GNU General Public License
        along with this program.  If not, see <http://www.gnu.org/licenses/>.
- ****/
+****/
 
+#include <math.h>
 #include <location/location-gps-device.h>
 #include <location/location-gpsd-control.h>
+#include <gconf/gconf-client.h>
 
 #include "util.h"
 #include "appdata.h"
+#include "callbacks.h"
+#include "ui.h"
 
-void start_gps(AppData* appdata) {
 
-#ifdef __arm__
-       // gps device
-       LocationGPSDevice *device;
-       device = g_object_new(LOCATION_TYPE_GPS_DEVICE, NULL);
+gdouble unit_array[] = {3.6};
 
-       g_signal_connect(device, "changed", G_CALLBACK(location_changed), appdata);
+#define GCONF_KEY "/apps/Maemo/speedometer/disclaimer"
 
-       LocationGPSDControl *control;
+static LocationGPSDevice *device = NULL;
+static LocationGPSDControl *control = NULL;
 
+void start_gps(AppData* appdata) {
+#ifdef __arm__
+       g_assert(appdata);
+       if(!device) {
+               device = g_object_new(LOCATION_TYPE_GPS_DEVICE, NULL);
+               g_signal_connect(device, "changed", G_CALLBACK(location_changed), appdata);
+       }
        control = location_gpsd_control_get_default();
-       location_gpsd_control_start(control);
+       location_gpsd_control_request_status(control);
+       if(control->can_control) {
+               location_gpsd_control_start(control);
+       }
 #endif // __arm__
-
 }
 
 void stop_gps(AppData* appdata) {
+#ifdef __arm__
+       g_assert(appdata);
+       control = location_gpsd_control_get_default();
+       location_gpsd_control_request_status(control);
+       if(control->can_control) {
+               location_gpsd_control_stop(control);
+       }
+#endif // __arm__
+}
+
+void interpret_speed_from_gps(AppData* appdata, gdouble speed) {
+       g_assert(appdata);
+       g_assert(!isnan(speed));
+
+       // convert float to a 6 digits (including dot) wide string with leading zeros
+       gchar* charspeed = g_malloc(10); // alloc
+       g_sprintf(charspeed, "%0*.2f", 6, speed);
+
+       g_print("Speed is %s km/h\n", charspeed);
+
+       // set the main digits
+       guint i = 3;
+       while(i) {
+               i--;
+               set_nth_digit(appdata, i, g_ascii_digit_value(charspeed[i]));
+       }
+
+       repaint_all_digits(appdata);
+
+       g_free(charspeed);
+}
+
+
+static show_dialog() {
+       GtkWidget *dialog = gtk_message_dialog_new(
+                       NULL,
+                       GTK_DIALOG_MODAL,
+                       GTK_MESSAGE_INFO,
+                       GTK_BUTTONS_OK,
+                       "This program is licensed under GNU General Public License, "
+                       "which means (among other things) that you don't have to pay "
+                       "a dime for it. "
+                       "If you think, however, that this software is worth it, you "
+                       "can always drop me a postcard. (or a speeding ticket :)\n\n"
+                       "Wellu Mäkinen\n"
+                       "PO BOX\n"
+                       "33580 Tampere\n"
+                       "FINLAND");
+       gtk_dialog_run(GTK_DIALOG(dialog));
+       gtk_widget_destroy(dialog);
+}
+
+void show_cardware_dialog() {
+       GConfClient* client = gconf_client_get_default();
+       g_assert(GCONF_IS_CLIENT(client));
+
+       GConfValue* gcvalue = NULL;
+       gcvalue = gconf_client_get_without_default(client, GCONF_KEY, NULL);
 
+       if(gcvalue == NULL) {
+               g_print("GConf key not found so show dialog.");
+               show_dialog();
+               gconf_client_set_bool(client, GCONF_KEY, TRUE, NULL);
+       }
+       g_object_unref(client);
 }