/**
* vu_get_canonical_filename:
*
* Returns: Canonical absolute filename
*
* Any time a path may contain a relative component, so need to prepend that directory it is relative to
* Then resolve the full path to get the normal canonical filename
*/
gchar *vu_get_canonical_filename ( VikLayer *vl, const gchar *filename )
{
gchar *canonical = NULL;
if ( !filename )
return NULL;
if ( g_path_is_absolute ( filename ) )
canonical = g_strdup ( filename );
else {
const gchar *vw_filename = vik_window_get_filename ( VIK_WINDOW_FROM_WIDGET (vl->vvp) );
gchar *dirpath = NULL;
if ( vw_filename )
dirpath = g_path_get_dirname ( vw_filename );
else
dirpath = g_get_current_dir(); // Fallback - if here then probably can't create the correct path
gchar *full = NULL;
if ( g_path_is_absolute ( dirpath ) )
full = g_strconcat ( dirpath, G_DIR_SEPARATOR_S, filename, NULL );
else
full = g_strconcat ( g_get_current_dir(), G_DIR_SEPARATOR_S, dirpath, G_DIR_SEPARATOR_S, filename, NULL );
canonical = file_realpath_dup ( full ); // resolved
g_free ( full );
g_free ( dirpath );
}
return canonical;
}
/**
* util_make_absolute_filename:
*
* Returns a newly allocated string of the absolute filename or
* NULL if name is already absolute (or dirpath is unusable)
*/
gchar* util_make_absolute_filename ( const gchar *filename, const gchar *dirpath )
{
if ( !dirpath ) return NULL;
// Is it ready absolute?
if ( g_path_is_absolute ( filename ) ) {
return NULL;
}
else {
// Otherwise create the absolute filename from the given directory and filename
gchar *full = g_strconcat ( dirpath, G_DIR_SEPARATOR_S, filename, NULL );
gchar *absolute = file_realpath_dup ( full ); // resolved into the canonical name
g_free ( full );
return absolute;
}
}
/*
* 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 = 0;
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_WAYPOINT && line_name)
{
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 ) {
// Ensure the filename is absolute
if ( g_path_is_absolute ( line_image ) )
vik_waypoint_set_image ( wp, line_image );
else {
// Otherwise create the absolute filename from the directory of the .vik file & and the relative filename
gchar *full = g_strconcat(dirpath, G_DIR_SEPARATOR_S, line_image, NULL);
gchar *absolute = file_realpath_dup ( full ); // resolved into the canonical name
vik_waypoint_set_image ( wp, absolute );
g_free ( absolute );
g_free ( full );
}
}
if ( line_symbol )
vik_waypoint_set_symbol ( wp, line_symbol );
}
else if ((line_type == GPSPOINT_TYPE_TRACK || line_type == GPSPOINT_TYPE_ROUTE) && line_name)
{
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;
}
current_track->trackpoints = g_list_append ( 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_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;
}
return have_read_something;
}