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Allow manual entry of GPS coordinates

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This implementation gives the user the ability to add GPS coordinates to
the dive location. It works as expected in multi-dive edit scenarios. It
has two major flaws:
- it only support WGS84 style coordinates - it should instead be
  intelligent enough to parse the common formats, at least using NSEW
  instead of sign and understanding minutes and seconds instead of decimal
  degrees
- but in reality, it really needs to support a map picker

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2013-01-27 11:58:13 -08:00
parent 3f261f56f3
commit 1cbffeaaf5
1 changed files with 39 additions and 1 deletions
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40
info.c
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@ -394,15 +394,43 @@ static int get_rating(const char *string)
return rating_val;
}
static gboolean gps_changed(struct dive *dive, struct dive *master, const char *gps_text)
{
double latitude, longitude;
int latudeg, longudeg;
/* if we have a master and the dive's gps address is different from it,
* don't change the dive */
if (master && (master->latitude.udeg != dive->latitude.udeg ||
master->longitude.udeg != dive->longitude.udeg))
return FALSE;
if (sscanf(gps_text, "%lf,%lf", &latitude, &longitude) != 2)
return FALSE;
latudeg = 1000000 * latitude + 0.5;
longudeg = 1000000 * longitude + 0.5;
/* if master gps didn't change, don't change dive */
if (master && master->latitude.udeg == latudeg && master->longitude.udeg == longudeg)
return FALSE;
/* if dive gps didn't change, nothing changed */
if (dive->latitude.udeg == latudeg && dive->longitude.udeg == longudeg)
return FALSE;
/* ok, update the dive and mark things changed */
dive->latitude.udeg = latudeg;
dive->longitude.udeg = longudeg;
return TRUE;
}
struct dive_info {
GtkComboBoxEntry *location, *divemaster, *buddy, *rating, *suit, *viz;
GtkEntry *airtemp;
GtkEntry *airtemp, *gps;
GtkTextView *notes;
};
static void save_dive_info_changes(struct dive *dive, struct dive *master, struct dive_info *info)
{
char *old_text, *new_text;
const char *gps_text;
char *rating_string;
double newtemp;
int changed = 0;
@ -413,6 +441,10 @@ static void save_dive_info_changes(struct dive *dive, struct dive *master, struc
changed = 1;
}
gps_text = gtk_entry_get_text(info->gps);
if (gps_changed(dive, master, gps_text))
changed = 1;
new_text = get_combo_box_entry_text(info->divemaster, &dive->divemaster, master->divemaster);
if (new_text) {
add_people(new_text);
@ -503,6 +535,7 @@ static void dive_info_widget(GtkWidget *box, struct dive *dive, struct dive_info
GtkWidget *hbox, *label, *frame, *equipment;
char buffer[128];
char airtemp[6];
char gps_text[25] = "";
const char *unit;
double value;
@ -515,6 +548,11 @@ static void dive_info_widget(GtkWidget *box, struct dive *dive, struct dive_info
info->location = text_entry(box, _("Location"), location_list, dive->location);
if (dive_has_location(dive))
snprintf(gps_text, sizeof(gps_text), "%3.5lf,%3.5lf", dive->latitude.udeg / 1000000.0,
dive->longitude.udeg / 1000000.0);
info->gps = single_text_entry(box, _("GPS"), gps_text);
hbox = gtk_hbox_new(FALSE, 3);
gtk_box_pack_start(GTK_BOX(box), hbox, FALSE, TRUE, 0);