/**
* Just update the display for the time fields
*/
static void tpwin_update_times ( VikTrwLayerTpwin *tpwin, VikTrackpoint *tp )
{
if ( tp->has_timestamp ) {
gtk_spin_button_set_value ( tpwin->ts, tp->timestamp );
gchar *msg = vu_get_time_string ( &(tp->timestamp), "%c", &(tp->coord), NULL );
gtk_button_set_label ( GTK_BUTTON(tpwin->time), msg );
g_free ( msg );
}
else {
gtk_spin_button_set_value ( tpwin->ts, 0 );
gtk_button_set_label ( GTK_BUTTON(tpwin->time), "" );
}
}
static void update_time ( GtkWidget *widget, VikWaypoint *wp )
{
gchar *msg = vu_get_time_string ( &(wp->timestamp), "%c", &(wp->coord), NULL );
gtk_button_set_label ( GTK_BUTTON(widget), msg );
g_free ( msg );
}
/**
* vu_trackpoint_formatted_message:
* @format_code: String describing the message to generate
* @trkpt: The trackpoint for which the message is generated about
* @trkpt_prev: A trackpoint (presumed previous) for interpolating values with the other trackpoint (such as speed)
* @trk: The track in which the trackpoints reside
* @climb: Vertical speed (Out of band (i.e. not in a trackpoint) value for display currently only for GPSD usage)
*
* TODO: One day replace this cryptic format code with some kind of tokenizer parsing
* thus would make it more user friendly and maybe even GUI controlable.
* However for now at least there is some semblance of user control
*/
gchar* vu_trackpoint_formatted_message ( gchar *format_code, VikTrackpoint *trkpt, VikTrackpoint *trkpt_prev, VikTrack *trk, gdouble climb )
{
if ( !trkpt )
return NULL;
gint len = 0;
if ( format_code )
len = strlen ( format_code );
if ( len > FMT_MAX_NUMBER_CODES )
len = FMT_MAX_NUMBER_CODES;
gchar* values[FMT_MAX_NUMBER_CODES];
int i;
for ( i = 0; i < FMT_MAX_NUMBER_CODES; i++ ) {
values[i] = '\0';
}
gchar *speed_units_str = NULL;
vik_units_speed_t speed_units = a_vik_get_units_speed ();
switch (speed_units) {
case VIK_UNITS_SPEED_MILES_PER_HOUR:
speed_units_str = g_strdup ( _("mph") );
break;
case VIK_UNITS_SPEED_METRES_PER_SECOND:
speed_units_str = g_strdup ( _("m/s") );
break;
case VIK_UNITS_SPEED_KNOTS:
speed_units_str = g_strdup ( _("knots") );
break;
default:
// VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
speed_units_str = g_strdup ( _("km/h") );
break;
}
gchar *separator = g_strdup ( " | " );
for ( i = 0; i < len; i++ ) {
switch ( g_ascii_toupper ( format_code[i] ) ) {
case 'G': values[i] = g_strdup ( _("GPSD") ); break; // GPS Preamble
case 'K': values[i] = g_strdup ( _("Trkpt") ); break; // Trkpt Preamble
case 'S': {
gdouble speed = 0.0;
gchar *speedtype = NULL;
if ( isnan(trkpt->speed) && trkpt_prev ) {
if ( trkpt->has_timestamp && trkpt_prev->has_timestamp ) {
if ( trkpt->timestamp != trkpt_prev->timestamp ) {
// Work out from previous trackpoint location and time difference
speed = vik_coord_diff(&(trkpt->coord), &(trkpt_prev->coord)) / ABS(trkpt->timestamp - trkpt_prev->timestamp);
speedtype = g_strdup ( "*" ); // Interpolated
}
else
speedtype = g_strdup ( "**" );
}
else
speedtype = g_strdup ( "**" );
}
else {
speed = trkpt->speed;
speedtype = g_strdup ( "" );
}
switch (speed_units) {
case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
speed = VIK_MPS_TO_KPH(speed);
break;
case VIK_UNITS_SPEED_MILES_PER_HOUR:
speed = VIK_MPS_TO_MPH(speed);
break;
case VIK_UNITS_SPEED_KNOTS:
speed = VIK_MPS_TO_KNOTS(speed);
break;
default:
// VIK_UNITS_SPEED_METRES_PER_SECOND:
// Already in m/s so nothing to do
break;
}
values[i] = g_strdup_printf ( _("%sSpeed%s %.1f%s"), separator, speedtype, speed, speed_units_str );
g_free ( speedtype );
break;
}
case 'B': {
gdouble speed = 0.0;
gchar *speedtype = NULL;
if ( isnan(climb) && trkpt_prev ) {
if ( trkpt->has_timestamp && trkpt_prev->has_timestamp ) {
if ( trkpt->timestamp != trkpt_prev->timestamp ) {
// Work out from previous trackpoint altitudes and time difference
// 'speed' can be negative if going downhill
speed = (trkpt->altitude - trkpt_prev->altitude) / ABS(trkpt->timestamp - trkpt_prev->timestamp);
speedtype = g_strdup ( "*" ); // Interpolated
}
else
speedtype = g_strdup ( "**" ); // Unavailable
}
else
speedtype = g_strdup ( "**" );
}
else {
speed = climb;
speedtype = g_strdup ( "" );
}
switch (speed_units) {
case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
speed = VIK_MPS_TO_KPH(speed);
break;
case VIK_UNITS_SPEED_MILES_PER_HOUR:
speed = VIK_MPS_TO_MPH(speed);
break;
case VIK_UNITS_SPEED_KNOTS:
speed = VIK_MPS_TO_KNOTS(speed);
break;
default:
// VIK_UNITS_SPEED_METRES_PER_SECOND:
// Already in m/s so nothing to do
break;
}
// Go for 2dp as expect low values for vertical speeds
values[i] = g_strdup_printf ( _("%sClimb%s %.2f%s"), separator, speedtype, speed, speed_units_str );
g_free ( speedtype );
break;
}
case 'A': {
vik_units_height_t height_units = a_vik_get_units_height ();
switch (height_units) {
case VIK_UNITS_HEIGHT_FEET:
values[i] = g_strdup_printf ( _("%sAlt %dfeet"), separator, (int)round(VIK_METERS_TO_FEET(trkpt->altitude)) );
break;
default:
//VIK_UNITS_HEIGHT_METRES:
values[i] = g_strdup_printf ( _("%sAlt %dm"), separator, (int)round(trkpt->altitude) );
break;
}
break;
}
case 'C': {
gint heading = isnan(trkpt->course) ? 0 : (gint)round(trkpt->course);
values[i] = g_strdup_printf ( _("%sCourse %03d\302\260" ), separator, heading );
break;
}
case 'P': {
if ( trkpt_prev ) {
gint diff = (gint) round ( vik_coord_diff ( &(trkpt->coord), &(trkpt_prev->coord) ) );
gchar *dist_units_str = NULL;
vik_units_distance_t dist_units = a_vik_get_units_distance ();
// expect the difference between track points to be small hence use metres or yards
switch (dist_units) {
case VIK_UNITS_DISTANCE_MILES:
case VIK_UNITS_DISTANCE_NAUTICAL_MILES:
dist_units_str = g_strdup ( _("yards") );
break;
default:
// VIK_UNITS_DISTANCE_KILOMETRES:
dist_units_str = g_strdup ( _("m") );
break;
}
values[i] = g_strdup_printf ( _("%sDistance diff %d%s"), separator, diff, dist_units_str );
g_free ( dist_units_str );
}
break;
}
case 'T': {
gchar *msg;
if ( trkpt->has_timestamp ) {
// Compact date time format
msg = vu_get_time_string ( &(trkpt->timestamp), "%x %X", &(trkpt->coord), NULL );
}
else
msg = g_strdup ("--");
values[i] = g_strdup_printf ( _("%sTime %s"), separator, msg );
g_free ( msg );
break;
}
case 'M': {
if ( trkpt_prev ) {
if ( trkpt->has_timestamp && trkpt_prev->has_timestamp ) {
time_t t_diff = trkpt->timestamp - trkpt_prev->timestamp;
values[i] = g_strdup_printf ( _("%sTime diff %lds"), separator, t_diff );
}
}
break;
}
case 'X': values[i] = g_strdup_printf ( _("%sNo. of Sats %d"), separator, trkpt->nsats ); break;
case 'F': {
if ( trk ) {
// Distance to the end 'Finish' (along the track)
gdouble distd = vik_track_get_length_to_trackpoint (trk, trkpt);
gdouble diste = vik_track_get_length_including_gaps ( trk );
gdouble dist = diste - distd;
gchar *dist_units_str = NULL;
vik_units_distance_t dist_units = a_vik_get_units_distance ();
switch (dist_units) {
case VIK_UNITS_DISTANCE_MILES:
dist_units_str = g_strdup ( _("miles") );
dist = VIK_METERS_TO_MILES(dist);
break;
case VIK_UNITS_DISTANCE_NAUTICAL_MILES:
dist_units_str = g_strdup ( _("NM") );
dist = VIK_METERS_TO_NAUTICAL_MILES(dist);
break;
default:
// VIK_UNITS_DISTANCE_KILOMETRES:
dist_units_str = g_strdup ( _("km") );
dist = dist / 1000.0;
break;
}
values[i] = g_strdup_printf ( _("%sTo End %.2f%s"), separator, dist, dist_units_str );
g_free ( dist_units_str );
}
break;
}
case 'D': {
if ( trk ) {
// Distance from start (along the track)
gdouble distd = vik_track_get_length_to_trackpoint (trk, trkpt);
gchar *dist_units_str = NULL;
vik_units_distance_t dist_units = a_vik_get_units_distance ();
switch (dist_units) {
case VIK_UNITS_DISTANCE_MILES:
dist_units_str = g_strdup ( _("miles") );
distd = VIK_METERS_TO_MILES(distd);
break;
case VIK_UNITS_DISTANCE_NAUTICAL_MILES:
dist_units_str = g_strdup ( _("NM") );
distd = VIK_METERS_TO_NAUTICAL_MILES(distd);
break;
default:
// VIK_UNITS_DISTANCE_KILOMETRES:
dist_units_str = g_strdup ( _("km") );
distd = distd / 1000.0;
break;
}
values[i] = g_strdup_printf ( _("%sDistance along %.2f%s"), separator, distd, dist_units_str );
g_free ( dist_units_str );
}
break;
}
case 'L': {
// Location (Lat/Long)
gchar *lat = NULL, *lon = NULL;
struct LatLon ll;
vik_coord_to_latlon (&(trkpt->coord), &ll);
a_coords_latlon_to_string ( &ll, &lat, &lon );
values[i] = g_strdup_printf ( "%s%s %s", separator, lat, lon );
g_free ( lat );
g_free ( lon );
break;
}
case 'N': // Name of track
values[i] = g_strdup_printf ( _("%sTrack: %s"), separator, trk->name );
break;
case 'E': // Name of trackpoint if available
if ( trkpt->name )
values[i] = g_strdup_printf ( "%s%s", separator, trkpt->name );
else
values[i] = g_strdup ( "" );
break;
default:
break;
}
}
g_free ( separator );
g_free ( speed_units_str );
gchar *msg = g_strconcat ( values[0], values[1], values[2], values[3], values[4], values[5], values[6], values[7], values[8], NULL );
for ( i = 0; i < FMT_MAX_NUMBER_CODES; i++ ) {
if ( values[i] != '\0' )
g_free ( values[i] );
}
return msg;
}
