/*
* viking -- GPS Data and Topo Analyzer, Explorer, and Manager
*
* Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
* Copyright (C) 2012-2013, 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
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_MATH_H
#include <math.h>
#endif
#include "viking.h"
#include "vikutils.h"
#include <ctype.h>
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include <stdlib.h>
/* strtod */
typedef struct {
FILE *f;
gboolean is_route;
} TP_write_info_type;
static void a_gpspoint_write_track ( const gpointer id, const VikTrack *t, FILE *f );
static void a_gpspoint_write_trackpoint ( VikTrackpoint *tp, TP_write_info_type *write_info );
/* outline for file gpspoint.c
reading file:
take a line.
get first tag, if not type, skip it.
if type, record type. if waypoint list, etc move on. if track, make a new track, make it current track, add it, etc.
if waypoint, read on and store to the waypoint.
if trackpoint, make trackpoint, store to current track (error / skip if none)
*/
/* Thanks to etrex-cache's gpsbabel's gpspoint.c for starting me off! */
#define VIKING_LINE_SIZE 4096
static char line_buffer[VIKING_LINE_SIZE];
#define GPSPOINT_TYPE_NONE 0
#define GPSPOINT_TYPE_WAYPOINT 1
#define GPSPOINT_TYPE_TRACKPOINT 2
#define GPSPOINT_TYPE_ROUTEPOINT 3
#define GPSPOINT_TYPE_TRACK 4
#define GPSPOINT_TYPE_TRACK_END 5
#define GPSPOINT_TYPE_ROUTE 6
#define GPSPOINT_TYPE_ROUTE_END 7
static VikTrack *current_track; /* pointer to pointer to first GList */
static gint line_type = GPSPOINT_TYPE_NONE;
static struct LatLon line_latlon;
static gchar *line_name;
static gchar *line_comment;
static gchar *line_description;
static gchar *line_source;
static gchar *line_xtype;
static gchar *line_color;
static gint line_name_label = 0;
static gint line_dist_label = 0;
static gchar *line_image;
static gchar *line_symbol;
static gdouble line_image_direction = NAN;
static VikWaypointImageDirectionRef line_image_direction_ref = WP_IMAGE_DIRECTION_REF_TRUE;
static gboolean line_newsegment = FALSE;
static gboolean line_has_timestamp = FALSE;
static time_t line_timestamp = 0;
static gdouble line_altitude = VIK_DEFAULT_ALTITUDE;
static gboolean line_visible = TRUE;
static gboolean line_extended = FALSE;
static gdouble line_speed = NAN;
static gdouble line_course = NAN;
static gint line_sat = 0;
static gint line_fix = 0;
static gdouble line_hdop = VIK_DEFAULT_DOP;
static gdouble line_vdop = VIK_DEFAULT_DOP;
static gdouble line_pdop = VIK_DEFAULT_DOP;
/* other possible properties go here */
static void gpspoint_process_tag ( const gchar *tag, guint len );
static void gpspoint_process_key_and_value ( const gchar *key, guint key_len, const gchar *value, guint value_len );
static gchar *slashdup(const gchar *str)
{
size_t len = strlen(str);
size_t need_bs_count, i, j;
gchar *rv;
for ( i = 0, need_bs_count = 0; i < len; i++ )
if ( str[i] == '\\' || str[i] == '"' )
need_bs_count++;
rv = g_malloc ( (len+need_bs_count+1) * sizeof(gchar) );
for ( i = 0, j = 0; i < len; i++, j++ )
{
if ( str[i] == '\\' || str[i] == '"' )
rv[j++] = '\\';
rv[j] = str[i];
// Basic normalization of strings - replace Linefeed and Carriage returns as blanks.
// although allowed in GPX Spec - Viking file format can't handle multi-line strings yet...
if ( str[i] == '\n' || str[i] == '\r' )
rv[j] = ' ';
}
rv[j] = '\0';
return rv;
}
static gchar *deslashndup ( const gchar *str, guint16 len )
{
guint16 i,j, bs_count, new_len;
gboolean backslash = FALSE;
gchar *rv;
if ( len < 1 )
return NULL;
for ( i = 0, bs_count = 0; i < len; i++ )
if ( str[i] == '\\' )
{
bs_count++;
i++;
}
if ( str[i-1] == '\\' && (len == 1 || str[i-2] != '\\') )
bs_count--;
new_len = len - bs_count;
rv = g_malloc ( (new_len+1) * sizeof(gchar) );
for ( i = 0, j = 0; i < len && j < new_len; i++ )
if ( str[i] == '\\' && !backslash )
backslash = TRUE;
else
{
rv[j++] = str[i];
backslash = FALSE;
}
rv[new_len] = '\0';
return rv;
}
static void trackpoints_end ()
{
if ( current_track )
if ( current_track->trackpoints ) {
current_track->trackpoints = g_list_reverse ( current_track->trackpoints );
current_track = NULL;
}
}
/*
* Returns whether file read was a success
* No obvious way to test for a 'gpspoint' file,
* thus set a flag if any actual tag found during processing of the file
*/
gboolean a_gpspoint_read_file(VikTrwLayer *trw, FILE *f, const gchar *dirpath ) {
VikCoordMode coord_mode = vik_trw_layer_get_coord_mode ( trw );
gchar *tag_start, *tag_end;
g_assert ( f != NULL && trw != NULL );
line_type = GPSPOINT_TYPE_NONE;
line_timestamp = 0;
line_newsegment = FALSE;
line_image = NULL;
line_symbol = NULL;
current_track = NULL;
gboolean have_read_something = FALSE;
while (fgets(line_buffer, VIKING_LINE_SIZE, f))
{
gboolean inside_quote = 0;
gboolean backslash = 0;
line_buffer[strlen(line_buffer)-1] = '\0'; /* chop off newline */
/* for gpspoint files wrapped inside */
if ( strlen(line_buffer) >= 13 && strncmp ( line_buffer, "~EndLayerData", 13 ) == 0 ) {
// Even just a blank TRW is ok when in a .vik file
have_read_something = TRUE;
break;
}
/* each line: nullify stuff, make thing if nes, free name if ness */
tag_start = line_buffer;
for (;;)
{
/* my addition: find first non-whitespace character. if the null, skip line. */
while (*tag_start != '\0' && isspace(*tag_start))
tag_start++;
if (*tag_start == '\0')
break;
if (*tag_start == '#')
break;
tag_end = tag_start;
if (*tag_end == '"')
inside_quote = !inside_quote;
while (*tag_end != '\0' && (!isspace(*tag_end) || inside_quote)) {
tag_end++;
if (*tag_end == '\\' && !backslash)
backslash = TRUE;
else if (backslash)
backslash = FALSE;
else if (*tag_end == '"')
inside_quote = !inside_quote;
}
// Won't have super massively long strings, so potential truncation in cast is acceptable.
guint len = (guint)(tag_end - tag_start);
gpspoint_process_tag ( tag_start, len );
if (*tag_end == '\0' )
break;
else
tag_start = tag_end+1;
}
if (line_type == GPSPOINT_TYPE_TRACK_END || line_type == GPSPOINT_TYPE_ROUTE_END) {
trackpoints_end ();
}
if (line_type == GPSPOINT_TYPE_WAYPOINT && line_name)
{
// Handle a badly formatted file in case of missing explicit track/route end (this shouldn't happen)
trackpoints_end ();
have_read_something = TRUE;
VikWaypoint *wp = vik_waypoint_new();
wp->visible = line_visible;
wp->altitude = line_altitude;
wp->has_timestamp = line_has_timestamp;
wp->timestamp = line_timestamp;
vik_coord_load_from_latlon ( &(wp->coord), coord_mode, &line_latlon );
vik_trw_layer_filein_add_waypoint ( trw, line_name, wp );
g_free ( line_name );
line_name = NULL;
if ( line_comment )
vik_waypoint_set_comment ( wp, line_comment );
if ( line_description )
vik_waypoint_set_description ( wp, line_description );
if ( line_source )
vik_waypoint_set_source ( wp, line_source );
if ( line_xtype )
vik_waypoint_set_type ( wp, line_xtype );
if ( line_image ) {
gchar *fn = util_make_absolute_filename ( line_image, dirpath );
vik_waypoint_set_image ( wp, fn ? fn : line_image );
g_free ( fn );
}
if ( !isnan(line_image_direction) ) {
wp->image_direction = line_image_direction;
wp->image_direction_ref = line_image_direction_ref;
}
if ( line_symbol )
vik_waypoint_set_symbol ( wp, line_symbol );
}
else if ((line_type == GPSPOINT_TYPE_TRACK || line_type == GPSPOINT_TYPE_ROUTE) && line_name)
{
// Handle a badly formatted file in case of missing explicit track/route end (this shouldn't happen)
trackpoints_end ();
have_read_something = TRUE;
VikTrack *pl = vik_track_new();
// NB don't set defaults here as all properties are stored in the GPS_POINT format
//vik_track_set_defaults ( pl );
/* Thanks to Peter Jones for this Fix */
if (!line_name) line_name = g_strdup("UNK");
pl->visible = line_visible;
pl->is_route = (line_type == GPSPOINT_TYPE_ROUTE);
if ( line_comment )
vik_track_set_comment ( pl, line_comment );
if ( line_description )
vik_track_set_description ( pl, line_description );
if ( line_source )
vik_track_set_source ( pl, line_source );
if ( line_xtype )
vik_track_set_type ( pl, line_xtype );
if ( line_color )
{
if ( gdk_color_parse ( line_color, &(pl->color) ) )
pl->has_color = TRUE;
}
pl->draw_name_mode = line_name_label;
pl->max_number_dist_labels = line_dist_label;
pl->trackpoints = NULL;
vik_trw_layer_filein_add_track ( trw, line_name, pl );
g_free ( line_name );
line_name = NULL;
current_track = pl;
}
else if ((line_type == GPSPOINT_TYPE_TRACKPOINT || line_type == GPSPOINT_TYPE_ROUTEPOINT) && current_track)
{
have_read_something = TRUE;
VikTrackpoint *tp = vik_trackpoint_new();
vik_coord_load_from_latlon ( &(tp->coord), coord_mode, &line_latlon );
tp->newsegment = line_newsegment;
tp->has_timestamp = line_has_timestamp;
tp->timestamp = line_timestamp;
tp->altitude = line_altitude;
vik_trackpoint_set_name ( tp, line_name );
if (line_extended) {
tp->speed = line_speed;
tp->course = line_course;
tp->nsats = line_sat;
tp->fix_mode = line_fix;
tp->hdop = line_hdop;
tp->vdop = line_vdop;
tp->pdop = line_pdop;
}
// Much faster to prepend and then reverse list once all points read in
// Especially if hunderds of thousands or more trackpoints in a file
current_track->trackpoints = g_list_prepend ( current_track->trackpoints, tp );
}
if (line_name)
g_free ( line_name );
line_name = NULL;
if (line_comment)
g_free ( line_comment );
if (line_description)
g_free ( line_description );
if (line_source)
g_free ( line_source );
if (line_xtype)
g_free ( line_xtype );
if (line_color)
g_free ( line_color );
if (line_image)
g_free ( line_image );
if (line_symbol)
g_free ( line_symbol );
line_comment = NULL;
line_description = NULL;
line_source = NULL;
line_xtype = NULL;
line_color = NULL;
line_image = NULL;
line_image_direction = NAN;
line_image_direction_ref = WP_IMAGE_DIRECTION_REF_TRUE;
line_symbol = NULL;
line_type = GPSPOINT_TYPE_NONE;
line_newsegment = FALSE;
line_has_timestamp = FALSE;
line_timestamp = 0;
line_altitude = VIK_DEFAULT_ALTITUDE;
line_visible = TRUE;
line_symbol = NULL;
line_extended = FALSE;
line_speed = NAN;
line_course = NAN;
line_sat = 0;
line_fix = 0;
line_hdop = VIK_DEFAULT_DOP;
line_vdop = VIK_DEFAULT_DOP;
line_pdop = VIK_DEFAULT_DOP;
line_name_label = 0;
line_dist_label = 0;
}
// Handle a badly formatted file in case of missing explicit track/route end (this shouldn't happen)
trackpoints_end ();
return have_read_something;
}
/* Tag will be of a few defined forms:
^[:alpha:]*=".*"$
^[:alpha:]*=.*$
<invalid tag>
So we must determine end of tag name, start of value, end of value.
*/
static void gpspoint_process_tag ( const gchar *tag, guint len )
{
const gchar *key_end, *value_start, *value_end;
/* Searching for key end */
key_end = tag;
while (++key_end - tag < len)
if (*key_end == '=')
break;
if (key_end - tag == len)
return; /* no good */
if (key_end - tag == len + 1)
value_start = value_end = 0; /* size = 0 */
else
{
value_start = key_end + 1; /* equal_sign plus one */
if (*value_start == '"')
{
value_start++;
if (*value_start == '"')
value_start = value_end = 0; /* size = 0 */
else
{
if (*(tag+len-1) == '"')
value_end = tag + len - 1;
else
return; /* bogus */
}
}
else
value_end = tag + len; /* value start really IS value start. */
// Detect broken lines which end without any text or the enclosing ". i.e. like: comment="
if ( (value_end - value_start) < 0 )
return;
gpspoint_process_key_and_value(tag, key_end - tag, value_start, value_end - value_start);
}
}
/*
value = NULL for none
*/
static void gpspoint_process_key_and_value ( const gchar *key, guint key_len, const gchar *value, guint value_len )
{
if (key_len == 4 && strncasecmp( key, "type", key_len ) == 0 )
{
if (value == NULL)
line_type = GPSPOINT_TYPE_NONE;
else if (value_len == 5 && strncasecmp( value, "track", value_len ) == 0 )
line_type = GPSPOINT_TYPE_TRACK;
else if (value_len == 8 && strncasecmp( value, "trackend", value_len ) == 0 )
line_type = GPSPOINT_TYPE_TRACK_END;
else if (value_len == 10 && strncasecmp( value, "trackpoint", value_len ) == 0 )
line_type = GPSPOINT_TYPE_TRACKPOINT;
else if (value_len == 8 && strncasecmp( value, "waypoint", value_len ) == 0 )
line_type = GPSPOINT_TYPE_WAYPOINT;
else if (value_len == 5 && strncasecmp( value, "route", value_len ) == 0 )
line_type = GPSPOINT_TYPE_ROUTE;
else if (value_len == 8 && strncasecmp( value, "routeend", value_len ) == 0 )
line_type = GPSPOINT_TYPE_ROUTE_END;
else if (value_len == 10 && strncasecmp( value, "routepoint", value_len ) == 0 )
line_type = GPSPOINT_TYPE_ROUTEPOINT;
else
/* all others are ignored */
line_type = GPSPOINT_TYPE_NONE;
}
else if (key_len == 4 && strncasecmp( key, "name", key_len ) == 0 && value != NULL)
{
if (line_name == NULL)
{
line_name = deslashndup ( value, value_len );
}
}
else if (key_len == 7 && strncasecmp( key, "comment", key_len ) == 0 && value != NULL)
{
if (line_comment == NULL)
line_comment = deslashndup ( value, value_len );
}
else if (key_len == 11 && strncasecmp( key, "description", key_len ) == 0 && value != NULL)
{
if (line_description == NULL)
line_description = deslashndup ( value, value_len );
}
else if (key_len == 6 && strncasecmp( key, "source", key_len ) == 0 && value != NULL)
{
if (line_source == NULL)
line_source = deslashndup ( value, value_len );
}
// NB using 'xtype' to differentiate from our own 'type' key
else if (key_len == 5 && strncasecmp( key, "xtype", key_len ) == 0 && value != NULL)
{
if (line_xtype == NULL)
line_xtype = deslashndup ( value, value_len );
}
else if (key_len == 5 && strncasecmp( key, "color", key_len ) == 0 && value != NULL)
{
if (line_color == NULL)
line_color = deslashndup ( value, value_len );
}
else if (key_len == 14 && strncasecmp( key, "draw_name_mode", key_len ) == 0 && value != NULL)
{
line_name_label = atoi(value);
}
else if (key_len == 18 && strncasecmp( key, "number_dist_labels", key_len ) == 0 && value != NULL)
{
line_dist_label = atoi(value);
}
else if (key_len == 5 && strncasecmp( key, "image", key_len ) == 0 && value != NULL)
{
if (line_image == NULL)
line_image = deslashndup ( value, value_len );
}
else if (key_len == 15 && strncasecmp( key, "image_direction", key_len ) == 0 && value != NULL)
{
line_image_direction = g_ascii_strtod(value, NULL);
}
else if (key_len == 19 && strncasecmp( key, "image_direction_ref", key_len ) == 0 && value != NULL)
{
line_image_direction_ref = atoi(value);
}
else if (key_len == 8 && strncasecmp( key, "latitude", key_len ) == 0 && value != NULL)
{
line_latlon.lat = g_ascii_strtod(value, NULL);
}
else if (key_len == 9 && strncasecmp( key, "longitude", key_len ) == 0 && value != NULL)
{
line_latlon.lon = g_ascii_strtod(value, NULL);
}
else if (key_len == 8 && strncasecmp( key, "altitude", key_len ) == 0 && value != NULL)
{
line_altitude = g_ascii_strtod(value, NULL);
}
else if (key_len == 7 && strncasecmp( key, "visible", key_len ) == 0 && value != NULL && value[0] != 'y' && value[0] != 'Y' && value[0] != 't' && value[0] != 'T')
{
line_visible = FALSE;
}
else if (key_len == 6 && strncasecmp( key, "symbol", key_len ) == 0 && value != NULL)
{
line_symbol = g_strndup ( value, value_len );
}
else if (key_len == 8 && strncasecmp( key, "unixtime", key_len ) == 0 && value != NULL)
{
line_timestamp = g_ascii_strtod(value, NULL);
if ( line_timestamp != 0x80000000 )
line_has_timestamp = TRUE;
}
else if (key_len == 10 && strncasecmp( key, "newsegment", key_len ) == 0 && value != NULL)
{
line_newsegment = TRUE;
}
else if (key_len == 8 && strncasecmp( key, "extended", key_len ) == 0 && value != NULL)
{
line_extended = TRUE;
}
else if (key_len == 5 && strncasecmp( key, "speed", key_len ) == 0 && value != NULL)
{
line_speed = g_ascii_strtod(value, NULL);
}
else if (key_len == 6 && strncasecmp( key, "course", key_len ) == 0 && value != NULL)
{
line_course = g_ascii_strtod(value, NULL);
}
else if (key_len == 3 && strncasecmp( key, "sat", key_len ) == 0 && value != NULL)
{
line_sat = atoi(value);
}
else if (key_len == 3 && strncasecmp( key, "fix", key_len ) == 0 && value != NULL)
{
line_fix = atoi(value);
}
else if (key_len == 4 && strncasecmp( key, "hdop", key_len ) == 0 && value != NULL)
{
line_hdop = g_ascii_strtod(value, NULL);
}
else if (key_len == 4 && strncasecmp( key, "vdop", key_len ) == 0 && value != NULL)
{
line_vdop = g_ascii_strtod(value, NULL);
}
else if (key_len == 4 && strncasecmp( key, "pdop", key_len ) == 0 && value != NULL)
{
line_pdop = g_ascii_strtod(value, NULL);
}
}
typedef struct {
FILE *file;
const gchar *dirpath;
} WritingContext;
static void a_gpspoint_write_waypoint ( const gpointer id, const VikWaypoint *wp, WritingContext *wc )
{
struct LatLon ll;
gchar s_lat[COORDS_STR_BUFFER_SIZE];
gchar s_lon[COORDS_STR_BUFFER_SIZE];
// Sanity clauses
if ( !wp )
return;
if ( !(wp->name) )
return;
if ( !wc )
return;
FILE *f = wc->file;
vik_coord_to_latlon ( &(wp->coord), &ll );
a_coords_dtostr_buffer ( ll.lat, s_lat );
a_coords_dtostr_buffer ( ll.lon, s_lon );
gchar *tmp_name = slashdup(wp->name);
fprintf ( f, "type=\"waypoint\" latitude=\"%s\" longitude=\"%s\" name=\"%s\"", s_lat, s_lon, tmp_name );
g_free ( tmp_name );
if ( wp->altitude != VIK_DEFAULT_ALTITUDE ) {
gchar s_alt[COORDS_STR_BUFFER_SIZE];
a_coords_dtostr_buffer ( wp->altitude, s_alt );
fprintf ( f, " altitude=\"%s\"", s_alt );
}
if ( wp->has_timestamp )
fprintf ( f, " unixtime=\"%ld\"", wp->timestamp );
if ( wp->comment )
{
gchar *tmp_comment = slashdup(wp->comment);
fprintf ( f, " comment=\"%s\"", tmp_comment );
g_free ( tmp_comment );
}
if ( wp->description )
{
gchar *tmp_description = slashdup(wp->description);
fprintf ( f, " description=\"%s\"", tmp_description );
g_free ( tmp_description );
}
if ( wp->source )
{
gchar *tmp_source = slashdup(wp->source);
fprintf ( f, " source=\"%s\"", tmp_source );
g_free ( tmp_source );
}
if ( wp->type )
{
gchar *tmp_type = slashdup(wp->type);
fprintf ( f, " xtype=\"%s\"", tmp_type );
g_free ( tmp_type );
}
if ( wp->image )
{
gchar *tmp_image = NULL;
if ( a_vik_get_file_ref_format() == VIK_FILE_REF_FORMAT_RELATIVE ) {
if ( wc->dirpath )
tmp_image = g_strdup ( file_GetRelativeFilename ( (gchar*)wc->dirpath, wp->image ) );
}
// if tmp_image not available - use image filename as is
// this should be an absolute path as set in thumbnails
if ( !tmp_image )
tmp_image = slashdup(wp->image);
if ( tmp_image )
fprintf ( f, " image=\"%s\"", tmp_image );
g_free ( tmp_image );
}
if ( !isnan(wp->image_direction) )
{
gchar *tmp = util_formatd ( "%.2f", wp->image_direction );
fprintf ( f, " image_direction=\"%s\"", tmp );
g_free ( tmp );
fprintf ( f, " image_direction_ref=\"%d\"", wp->image_direction_ref );
}
if ( wp->symbol )
{
// Due to changes in garminsymbols - the symbol name is now in Title Case
// However to keep newly generated .vik files better compatible with older Viking versions
// The symbol names will always be lowercase
gchar *tmp_symbol = g_utf8_strdown(wp->symbol, -1);
fprintf ( f, " symbol=\"%s\"", tmp_symbol );
g_free ( tmp_symbol );
}
if ( ! wp->visible )
fprintf ( f, " visible=\"n\"" );
fprintf ( f, "\n" );
}
static void a_gpspoint_write_trackpoint ( VikTrackpoint *tp, TP_write_info_type *write_info )
{
struct LatLon ll;
gchar s_lat[COORDS_STR_BUFFER_SIZE];
gchar s_lon[COORDS_STR_BUFFER_SIZE];
gchar s_alt[COORDS_STR_BUFFER_SIZE];
vik_coord_to_latlon ( &(tp->coord), &ll );
FILE *f = write_info->f;
a_coords_dtostr_buffer ( ll.lat, s_lat );
a_coords_dtostr_buffer ( ll.lon, s_lon );
fprintf ( f, "type=\"%spoint\" latitude=\"%s\" longitude=\"%s\"", write_info->is_route ? "route" : "track", s_lat, s_lon );
if ( tp->name ) {
gchar *name = slashdup(tp->name);
fprintf ( f, " name=\"%s\"", name );
g_free(name);
}
if ( tp->altitude != VIK_DEFAULT_ALTITUDE ) {
a_coords_dtostr_buffer ( tp->altitude, s_alt );
fprintf ( f, " altitude=\"%s\"", s_alt );
}
if ( tp->has_timestamp )
fprintf ( f, " unixtime=\"%ld\"", tp->timestamp );
if ( tp->newsegment )
fprintf ( f, " newsegment=\"yes\"" );
if (!isnan(tp->speed) || !isnan(tp->course) || tp->nsats > 0) {
fprintf ( f, " extended=\"yes\"" );
if (!isnan(tp->speed)) {
gchar s_speed[COORDS_STR_BUFFER_SIZE];
a_coords_dtostr_buffer ( tp->speed, s_speed );
fprintf ( f, " speed=\"%s\"", s_speed );
}
if (!isnan(tp->course)) {
gchar s_course[COORDS_STR_BUFFER_SIZE];
a_coords_dtostr_buffer ( tp->course, s_course );
fprintf ( f, " course=\"%s\"", s_course );
}
if (tp->nsats > 0)
fprintf ( f, " sat=\"%d\"", tp->nsats );
if (tp->fix_mode > 0)
fprintf ( f, " fix=\"%d\"", tp->fix_mode );
if ( tp->hdop != VIK_DEFAULT_DOP ) {
gchar ss[COORDS_STR_BUFFER_SIZE];
a_coords_dtostr_buffer ( tp->hdop, ss );
fprintf ( f, " hdop=\"%s\"", ss );
}
if ( tp->vdop != VIK_DEFAULT_DOP ) {
gchar ss[COORDS_STR_BUFFER_SIZE];
a_coords_dtostr_buffer ( tp->vdop, ss );
fprintf ( f, " vdop=\"%s\"", ss );
}
if ( tp->pdop != VIK_DEFAULT_DOP ) {
gchar ss[COORDS_STR_BUFFER_SIZE];
a_coords_dtostr_buffer ( tp->pdop, ss );
fprintf ( f, " pdop=\"%s\"", ss );
}
}
fprintf ( f, "\n" );
}
static void a_gpspoint_write_track ( const gpointer id, const VikTrack *trk, FILE *f )
{
// Sanity clauses
if ( !trk )
return;
if ( !(trk->name) )
return;
gchar *tmp_name = slashdup(trk->name);
fprintf ( f, "type=\"%s\" name=\"%s\"", trk->is_route ? "route" : "track", tmp_name );
g_free ( tmp_name );
if ( trk->comment ) {
gchar *tmp = slashdup(trk->comment);
fprintf ( f, " comment=\"%s\"", tmp );
g_free ( tmp );
}
if ( trk->description ) {
gchar *tmp = slashdup(trk->description);
fprintf ( f, " description=\"%s\"", tmp );
g_free ( tmp );
}
if ( trk->source ) {
gchar *tmp = slashdup(trk->source);
fprintf ( f, " source=\"%s\"", tmp );
g_free ( tmp );
}
if ( trk->type ) {
gchar *tmp = slashdup(trk->type);
fprintf ( f, " xtype=\"%s\"", tmp );
g_free ( tmp );
}
if ( trk->has_color ) {
fprintf ( f, " color=#%.2x%.2x%.2x", (int)(trk->color.red/256),(int)(trk->color.green/256),(int)(trk->color.blue/256));
}
if ( trk->draw_name_mode > 0 )
fprintf ( f, " draw_name_mode=\"%d\"", trk->draw_name_mode );
if ( trk->max_number_dist_labels > 0 )
fprintf ( f, " number_dist_labels=\"%d\"", trk->max_number_dist_labels );
if ( ! trk->visible ) {
fprintf ( f, " visible=\"n\"" );
}
fprintf ( f, "\n" );
TP_write_info_type tp_write_info = { f, trk->is_route };
g_list_foreach ( trk->trackpoints, (GFunc) a_gpspoint_write_trackpoint, &tp_write_info );
fprintf ( f, "type=\"%send\"\n", trk->is_route ? "route" : "track" );
}
void a_gpspoint_write_file ( VikTrwLayer *trw, FILE *f, const gchar *dirpath )
{
GHashTable *tracks = vik_trw_layer_get_tracks ( trw );
GHashTable *routes = vik_trw_layer_get_routes ( trw );
GHashTable *waypoints = vik_trw_layer_get_waypoints ( trw );
WritingContext wc = { f, dirpath };
fprintf ( f, "type=\"waypointlist\"\n" );
g_hash_table_foreach ( waypoints, (GHFunc) a_gpspoint_write_waypoint, &wc );
fprintf ( f, "type=\"waypointlistend\"\n" );
g_hash_table_foreach ( tracks, (GHFunc) a_gpspoint_write_track, f );
g_hash_table_foreach ( routes, (GHFunc) a_gpspoint_write_track, f );
}