--- /dev/null
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
+/*
+ * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
+ *
+ * Copyright (C) 2013, Rob Norris <rw_norris@hotmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+#include <math.h>
+#include <glib/gi18n.h>
+
+#include "viking.h"
+#include "vikutils.h"
+
+#define FMT_MAX_NUMBER_CODES 9
+
+/**
+ * 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
+ *
+ * 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 )
+{
+ 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);
+
+ 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;
+ }
+ speedtype = g_strdup ( "*" ); // Interpolated
+ }
+ else
+ speedtype = g_strdup ( "**" );
+ }
+ else
+ speedtype = g_strdup ( "**" );
+ }
+ else {
+ speed = trkpt->speed;
+ speedtype = g_strdup ( "" );
+ }
+
+ values[i] = g_strdup_printf ( _("%sSpeed%s %.1f%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:
+ 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 tmp[64];
+ tmp[0] = '\0';
+ if ( trkpt->has_timestamp ) {
+ // Compact date time format
+ strftime (tmp, sizeof(tmp), "%x %X", localtime(&(trkpt->timestamp)));
+ }
+ else
+ g_snprintf (tmp, sizeof(tmp), "--");
+ values[i] = g_strdup_printf ( _("%sTime %s"), separator, tmp );
+ 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 '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 ();
+ // expect the difference between track points to be small hence use metres or yards
+ switch (dist_units) {
+ case VIK_UNITS_DISTANCE_MILES:
+ dist_units_str = g_strdup ( _("miles") );
+ distd = VIK_METERS_TO_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;
+
+ default:
+ break;
+ }
+ }
+
+ g_free ( separator );
+ g_free ( speed_units_str );
+
+ gchar *msg = g_strdup_printf ( "%s%s%s%s%s%s%s%s%s", values[0], values[1], values[2], values[3], values[4], values[5], values[6], values[7], values[8] );
+
+ for ( i = 0; i < FMT_MAX_NUMBER_CODES; i++ ) {
+ if ( values[i] != '\0' )
+ g_free ( values[i] );
+ }
+
+ return msg;
+}
projects / andy / viking.git / commitdiff