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roadmap_trip.c
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roadmap_trip.c
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/* roadmap_trip.c - Manage a trip: destination & waypoints.
*
* LICENSE:
*
* Copyright 2002 Pascal F. Martin
* Copyright 2008 Ehud Shabtai
*
* This file is part of RoadMap.
*
* RoadMap 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.
*
* RoadMap 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 RoadMap; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* SYNOPSYS:
*
* See roadmap_trip.h.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "roadmap.h"
#include "roadmap_types.h"
#include "roadmap_time.h"
#include "roadmap_path.h"
#include "roadmap_file.h"
#include "roadmap_gui.h"
#include "roadmap_math.h"
#include "roadmap_config.h"
#include "roadmap_dialog.h"
#include "roadmap_fileselection.h"
#include "roadmap_canvas.h"
#include "roadmap_sprite.h"
#include "roadmap_screen.h"
#include "roadmap_state.h"
#include "roadmap_message.h"
#include "roadmap_messagebox.h"
#include "roadmap_preferences.h"
#include "roadmap_display.h"
#include "roadmap_adjust.h"
#include "roadmap_res.h"
#include "roadmap_sunrise.h"
#include "roadmap_screen.h"
#include "editor/editor_screen.h"
#include "roadmap_trip.h"
static RoadMapConfigDescriptor RoadMapConfigTripName =
ROADMAP_CONFIG_ITEM("Trip", "Name");
static RoadMapConfigDescriptor RoadMapConfigTripRotate =
ROADMAP_CONFIG_ITEM("Display", "Rotate");
static RoadMapConfigDescriptor RoadMapConfigFocusName =
ROADMAP_CONFIG_ITEM("Focus", "Name");
static RoadMapConfigDescriptor RoadMapConfigFocusRotate =
ROADMAP_CONFIG_ITEM("Focus", "Rotate");
static RoadMapConfigDescriptor RoadMapConfigCarName =
ROADMAP_CONFIG_ITEM("Trip", "Car");
/* Default location is: Kikar Ha-Medina, Tel Aviv, Israel. */
#define ROADMAP_DEFAULT_POSITION "34794810, 32106010"
static int RoadMapTripRotate = 1;
static int RoadMapTripModified = 0; /* List needs to be saved ? */
static int RoadMapTripRefresh = 1; /* Screen needs to be refreshed ? */
static int RoadMapTripFocusChanged = 1;
static int RoadMapTripFocusMoved = 1;
static RoadMapCallback RoadMapTripNextMessageUpdate;
typedef struct roadmap_trip_point {
RoadMapListItem link;
char *id;
char *sprite;
char *image;
char predefined;
char mobile;
char in_trip;
char has_value;
RoadMapPosition map;
RoadMapGpsPosition gps;
RoadMapConfigDescriptor config_position;
RoadMapConfigDescriptor config_direction;
int distance; /* .. from the destination point. */
int from_node_id; // Start of the line segment
int to_node_id; // End of the line segment
} RoadMapTripPoint;
#define ROADMAP_TRIP_ITEM(id,sprite,image, mobile,in_trip, has_value) \
{{NULL, NULL}, id, sprite, image, 1, mobile, in_trip, has_value, \
{0, 0}, \
ROADMAP_GPS_NULL_POSITION, \
ROADMAP_CONFIG_ITEM(id,"Position"), \
ROADMAP_CONFIG_ITEM(id,"Direction"), \
0, \
-1, -1 \
}
RoadMapTripPoint RoadMapTripPredefined[] = {
ROADMAP_TRIP_ITEM("GPS", "GPS", NULL, 1, 0, 1),
ROADMAP_TRIP_ITEM("Destination", "Destination", "Destination", 0, 1, 0),
ROADMAP_TRIP_ITEM("Departure", "Departure", "Departure", 1, 1, 0),
ROADMAP_TRIP_ITEM("Address", NULL, NULL, 0, 0, 1),
ROADMAP_TRIP_ITEM("Selection", "Selection", NULL, 0, 0, 1),
ROADMAP_TRIP_ITEM("Hold", NULL, NULL, 1, 0, 0),
ROADMAP_TRIP_ITEM("Location", "Location", NULL, 0, 0, 1),
ROADMAP_TRIP_ITEM("ORIG_GPS", "ORIG_GPS", NULL, 0, 0, 1),
ROADMAP_TRIP_ITEM("Marked_Location", "Selection", "mark_location_pin", 0, 1, 0),
ROADMAP_TRIP_ITEM(NULL, NULL, NULL, 0, 0, 0)
};
static RoadMapTripPoint *RoadMapTripGps = NULL;
static RoadMapTripPoint *RoadMapTripFocus = NULL;
static RoadMapTripPoint *RoadMapTripDeparture = NULL;
static RoadMapTripPoint *RoadMapTripDestination = NULL;
static RoadMapTripPoint *RoadMapTripNextWaypoint = NULL;
static RoadMapList RoadMapTripWaypoints;
static RoadMapPosition RoadMapTripLastPosition;
static void roadmap_trip_unfocus (void) {
if (RoadMapTripFocus != NULL) {
RoadMapTripLastPosition = RoadMapTripFocus->map;
RoadMapTripFocus = NULL;
}
RoadMapTripDeparture = NULL;
RoadMapTripDestination = NULL;
}
static RoadMapTripPoint *roadmap_trip_search (const char *name) {
RoadMapListItem *item, *tmp;
RoadMapTripPoint *trip;
ROADMAP_LIST_FOR_EACH (&RoadMapTripWaypoints, item, tmp) {
trip = (RoadMapTripPoint *)item;
if (strcmp (trip->id, name) == 0) {
return trip;
}
}
return NULL;
}
static void roadmap_trip_coordinate (const RoadMapPosition *position, RoadMapGuiPoint *point) {
if (roadmap_math_point_is_visible (position)) {
roadmap_math_coordinate (position, point);
} else {
point->x = 32767;
point->y = 32767;
}
}
static void roadmap_trip_set_nodes( RoadMapTripPoint *trip_point, int from_node, int to_node )
{
if ( trip_point )
{
trip_point->from_node_id = from_node;
trip_point->to_node_id = to_node;
}
}
static RoadMapTripPoint *roadmap_trip_update
(const char *name,
const RoadMapPosition *position,
const RoadMapGpsPosition *gps_position,
const char *sprite,
const char *image) {
RoadMapTripPoint *result;
if (strchr (name, ',') != NULL) {
/* Because we use a 'simplified' CSV format, we cannot have
* commas in the name.
*/
char *to;
char *from;
char *cleaned = strdup (name);
for (from = cleaned, to = cleaned; *from != 0; ++from) {
if (*from != ',') {
if (to != from) {
*to = *from;
}
++to;
}
}
*to = 0;
result = roadmap_trip_update (cleaned, position, gps_position, sprite, image);
free (cleaned);
return result;
}
result = roadmap_trip_search (name);
if (result == NULL) {
/* A new point: refresh is needed only if this point
* is visible.
*/
result = malloc (sizeof(RoadMapTripPoint));
roadmap_check_allocated(result);
result->id = strdup(name);
roadmap_check_allocated(result->id);
result->predefined = 0;
result->in_trip = 1;
result->sprite = strdup(sprite);
result->mobile = (gps_position != NULL);
if (image != NULL)
result->image = strdup(image);
else
result->image = NULL;
if (roadmap_math_point_is_visible (position)) {
RoadMapTripRefresh = 1;
}
roadmap_list_append (&RoadMapTripWaypoints, &result->link);
RoadMapTripModified = 1;
} else {
/* An existing point: refresh is needed only if the point
* moved in a visible fashion.
*/
RoadMapGuiPoint point1;
RoadMapGuiPoint point2;
if (result->map.latitude != position->latitude ||
result->map.longitude != position->longitude) {
roadmap_trip_coordinate (position, &point1);
roadmap_trip_coordinate (&result->map, &point2);
if (point1.x != point2.x || point1.y != point2.y) {
RoadMapTripRefresh = 1;
}
RoadMapTripModified = 1;
if (result == RoadMapTripFocus) {
RoadMapTripFocusMoved = 1;
}
result->distance = 0;
}
}
result->map = *position;
result->has_value = 1;
// Nodes should be updated explicitly
roadmap_trip_set_nodes( result, -1, -1 );
if (gps_position != NULL) {
result->gps = *gps_position;
} else {
result->gps.speed = 0;
result->gps.steering = 0;
}
if (result->predefined && (! result->in_trip)) {
/* Save the new position in the session context. */
if (result->mobile) {
RoadMapPosition temporary;
temporary.longitude = result->gps.longitude;
temporary.latitude = result->gps.latitude;
roadmap_config_set_position
(&result->config_position, &temporary);
roadmap_config_set_integer
(&result->config_direction, result->gps.steering);
} else {
roadmap_config_set_position
(&result->config_position, &result->map);
}
}
return result;
}
/* TODO remove the dialog stuff to another file */
#ifndef J2ME
static void roadmap_trip_dialog_cancel (const char *name, void *data) {
roadmap_dialog_hide (name);
}
static void roadmap_trip_file_dialog_ok (const char *filename, const char *mode) {
if (mode[0] == 'w') {
roadmap_trip_save (filename);
} else {
roadmap_trip_load (filename, 0);
}
}
static void roadmap_trip_file_dialog (const char *mode) {
roadmap_fileselection_new ("RoadMap Trip",
NULL, /* no filter. */
roadmap_path_trips(),
mode,
roadmap_trip_file_dialog_ok);
}
static void roadmap_trip_set_dialog_ok (const char *name, void *data) {
char *point_name = (char *) roadmap_dialog_get_data ("Name", "Name:");
if (point_name[0] != 0) {
roadmap_trip_set_point (point_name, (RoadMapPosition *)data);
roadmap_dialog_hide (name);
}
}
static void roadmap_trip_set_dialog (const RoadMapPosition *position) {
static RoadMapPosition point_position;
point_position = *position;
if (roadmap_dialog_activate ("Add Waypoint", &point_position, 1)) {
roadmap_dialog_new_entry ("Name", "Name:", NULL);
roadmap_dialog_add_button ("OK", roadmap_trip_set_dialog_ok);
roadmap_dialog_add_button ("Cancel", roadmap_trip_dialog_cancel);
roadmap_dialog_complete (roadmap_preferences_use_keyboard());
}
}
static void roadmap_trip_remove_dialog_populate (int count);
static void roadmap_trip_remove_dialog_delete (const char *name, void *data) {
int count;
char *point_name = (char *) roadmap_dialog_get_data ("Names", ".Waypoints");
if (point_name && (point_name[0] != 0)) {
roadmap_trip_remove_point (point_name);
count = roadmap_list_count (&RoadMapTripWaypoints);
if (count > 0) {
roadmap_trip_remove_dialog_populate (count);
} else {
roadmap_dialog_hide (name);
}
}
}
static void roadmap_trip_remove_dialog_selected (const char *name, void *data) {
char *point_name = (char *) roadmap_dialog_get_data ("Names", ".Waypoints");
if (point_name != NULL) {
roadmap_trip_set_focus (point_name);
roadmap_screen_refresh ();
}
}
static void roadmap_trip_remove_dialog_populate (int count) {
static char **Names = NULL;
int i;
RoadMapListItem *item, *tmp;
RoadMapTripPoint *point;
if (Names != NULL) {
free (Names);
}
Names = calloc (count, sizeof(*Names));
roadmap_check_allocated(Names);
i=0;
ROADMAP_LIST_FOR_EACH (&RoadMapTripWaypoints, item, tmp) {
point = (RoadMapTripPoint *)item;
if (! point->predefined) {
Names[i++] = point->id;
}
}
roadmap_dialog_show_list
("Names", ".Waypoints", i, Names, (void **)Names,
roadmap_trip_remove_dialog_selected);
}
static void roadmap_trip_remove_dialog (void) {
int count;
count = roadmap_list_count (&RoadMapTripWaypoints);
if (count <= 0) {
return; /* Nothing to delete. */
}
if (roadmap_dialog_activate ("Delete Waypoints", NULL, 1)) {
roadmap_dialog_new_list ("Names", ".Waypoints");
roadmap_dialog_add_button ("Delete", roadmap_trip_remove_dialog_delete);
roadmap_dialog_add_button ("Done", roadmap_trip_dialog_cancel);
roadmap_dialog_complete (0); /* No need for a keyboard. */
}
roadmap_trip_remove_dialog_populate (count);
}
static FILE *roadmap_trip_fopen (const char *name, const char *mode) {
FILE *file;
if (name == NULL) {
roadmap_trip_file_dialog (mode);
return NULL;
}
if (roadmap_path_is_full_path (name)) {
file = roadmap_file_fopen (NULL, name, mode);
} else {
file = roadmap_file_fopen (roadmap_path_trips(), name, mode);
}
if (file != NULL) {
roadmap_config_set (&RoadMapConfigTripName, name);
}
return file;
}
#endif
static void roadmap_trip_set_point_focus (RoadMapTripPoint *point) {
int rotate;
if (point == NULL) return;
if (! point->mobile) {
rotate = 0; /* Fixed point, no rotation no matter what. */
RoadMapTripRefresh = 1;
RoadMapTripFocusChanged = 1;
} else {
rotate = roadmap_config_match (&RoadMapConfigTripRotate, "yes");
}
if (RoadMapTripRotate != rotate) {
roadmap_config_set_integer (&RoadMapConfigFocusRotate, rotate);
RoadMapTripRotate = rotate;
RoadMapTripRefresh = 1;
}
if (RoadMapTripFocus != point) {
roadmap_config_set (&RoadMapConfigFocusName, point->id);
RoadMapTripFocus = point;
RoadMapTripRefresh = 1;
RoadMapTripFocusChanged = 1;
roadmap_display_page (point->id);
}
if (point != RoadMapTripGps && RoadMapTripDestination != NULL) {
/* Force the refresh when we know the trip information
* must disappears from the screen.
*/
RoadMapTripRefresh = 1;
}
}
static void roadmap_trip_activate (void) {
RoadMapTripPoint *destination;
RoadMapTripPoint *waypoint;
RoadMapListItem *item, *tmp;
destination = RoadMapTripDestination;
if (destination == NULL) return;
/* Compute the distances to the destination. */
ROADMAP_LIST_FOR_EACH (&RoadMapTripWaypoints, item, tmp) {
waypoint = (RoadMapTripPoint *)item;
if (! waypoint->predefined) {
waypoint->distance =
roadmap_math_distance (&destination->map, &waypoint->map);
roadmap_log (ROADMAP_DEBUG,
"Waypoint %s: distance to destination = %d %s",
waypoint->id,
waypoint->distance,
roadmap_math_distance_unit());
}
}
destination->distance = 0;
roadmap_trip_set_focus ("GPS");
roadmap_screen_redraw ();
}
static void roadmap_trip_clear (void) {
RoadMapTripPoint *point;
RoadMapListItem *item, *tmp;
ROADMAP_LIST_FOR_EACH (&RoadMapTripWaypoints, item, tmp) {
point = (RoadMapTripPoint *)item;
if (! point->predefined) {
if (RoadMapTripFocus == point) {
roadmap_trip_unfocus ();
}
if (roadmap_math_point_is_visible (&point->map)) {
RoadMapTripRefresh = 1;
}
roadmap_list_remove (item);
free (point->id);
free (point->sprite);
free(point);
RoadMapTripModified = 1;
} else {
point->has_value = 0;
}
}
if (RoadMapTripModified) {
roadmap_config_set (&RoadMapConfigTripName, "default");
}
}
static void roadmap_trip_format_messages (void) {
int distance_to_destination;
int distance_to_destination_far;
RoadMapTripPoint *gps = RoadMapTripGps;
RoadMapTripPoint *waypoint;
RoadMapListItem *item, *tmp;
if (RoadMapTripFocus == gps &&
RoadMapTripDestination != NULL &&
RoadMapTripDestination->has_value) {
time_t now = time(NULL);
time_t sun;
roadmap_message_set ('T', roadmap_time_get_hours_minutes(now));
distance_to_destination =
roadmap_math_distance (&gps->map, &RoadMapTripDestination->map);
roadmap_log (ROADMAP_DEBUG,
"GPS: distance to destination = %d %s",
distance_to_destination,
roadmap_math_distance_unit());
distance_to_destination_far =
roadmap_math_to_trip_distance(distance_to_destination);
if (distance_to_destination_far > 0) {
roadmap_message_set ('D', "%d %s",
distance_to_destination_far,
roadmap_math_trip_unit());
} else {
roadmap_message_set ('D', "%d %s",
roadmap_math_distance_to_current(distance_to_destination),
roadmap_math_distance_unit());
};
RoadMapTripNextWaypoint = RoadMapTripDestination;
ROADMAP_LIST_FOR_EACH (&RoadMapTripWaypoints, item, tmp) {
waypoint = (RoadMapTripPoint *)item;
if (waypoint->in_trip && waypoint != RoadMapTripDeparture) {
if ((waypoint->distance < distance_to_destination) &&
(waypoint->distance > RoadMapTripNextWaypoint->distance)) {
RoadMapTripNextWaypoint = waypoint;
}
}
}
if (RoadMapTripNextWaypoint != RoadMapTripDestination) {
int distance_to_waypoint =
roadmap_math_distance (&gps->map,
&RoadMapTripNextWaypoint->map);
roadmap_log (ROADMAP_DEBUG,
"GPS: distance to next waypoint %s = %d %s",
RoadMapTripNextWaypoint->id,
distance_to_waypoint,
roadmap_math_distance_unit());
roadmap_message_set ('W', "%d %s",
roadmap_math_to_trip_distance
(distance_to_waypoint),
roadmap_math_trip_unit());
} else {
roadmap_message_unset ('W');
}
roadmap_message_set ('S', "%3d %s",
roadmap_math_to_speed_unit(gps->gps.speed),
roadmap_math_speed_unit());
roadmap_message_set ('H', "%d %s",
gps->gps.altitude,
roadmap_math_distance_unit());
sun = roadmap_sunset (&gps->gps, time(NULL));
if (sun > now) {
roadmap_message_unset ('M');
roadmap_message_set ('E', roadmap_time_get_hours_minutes(sun));
} else {
roadmap_message_unset ('E');
sun = roadmap_sunrise (&gps->gps, time(NULL));
roadmap_message_set ('M', roadmap_time_get_hours_minutes(sun));
}
} else {
RoadMapTripNextWaypoint = NULL;
roadmap_message_unset ('D');
roadmap_message_unset ('S');
roadmap_message_unset ('T');
roadmap_message_unset ('W');
roadmap_message_unset ('M');
roadmap_message_unset ('E');
}
(*RoadMapTripNextMessageUpdate) ();
}
int roadmap_trip_gps_state (void) {
if (!RoadMapTripGps->has_value ||
(roadmap_trip_get_focus_name () == RoadMapTripGps->id)) {
return TRIP_FOCUS_GPS;
}
return TRIP_FOCUS_NO_GPS;
}
void roadmap_trip_set_point (const char *name,
const RoadMapPosition *position) {
if (name == NULL) {
#ifndef J2ME
roadmap_trip_set_dialog (position);
#endif
} else {
roadmap_trip_update (name, position, NULL, "Waypoint", NULL);
}
}
void roadmap_trip_set_selection_as (const char *name) {
static RoadMapTripPoint *Selection = NULL;
if (Selection == NULL) {
Selection = roadmap_trip_search ("Selection");
}
roadmap_trip_update (name, &Selection->map, NULL, "Waypoint", NULL);
}
void roadmap_trip_set_mobile (const char *name,
const RoadMapGpsPosition *gps_position) {
RoadMapPosition position;
roadmap_adjust_position (gps_position, &position);
roadmap_trip_update (name, &position, gps_position, "Mobile", NULL);
}
void roadmap_trip_set_gps_position (const char *name, const char*sprite, const char* image,
const RoadMapGpsPosition *gps_position) {
RoadMapPosition position;
roadmap_adjust_position (gps_position, &position);
roadmap_trip_update (name, &position, gps_position, sprite, image);
}
void roadmap_trip_set_gps_and_nodes_position (const char *name, const char*sprite, const char* image,
const RoadMapGpsPosition *gps_position, int from_node, int to_node ) {
RoadMapPosition position;
RoadMapTripPoint *trip_point;
roadmap_adjust_position (gps_position, &position);
trip_point = roadmap_trip_update (name, &position, gps_position, sprite, image);
roadmap_trip_set_nodes( trip_point, from_node, to_node );
}
void roadmap_trip_copy_focus (const char *name) {
RoadMapTripPoint *to = roadmap_trip_search (name);
if (to != NULL &&
RoadMapTripFocus != NULL && to != RoadMapTripFocus) {
to->has_value = RoadMapTripFocus->has_value;
to->map = RoadMapTripFocus->map;
to->gps = RoadMapTripFocus->gps;
if (to->predefined && (! to->in_trip)) {
roadmap_config_set_position (&to->config_position, &to->map);
roadmap_config_set_integer (&to->config_direction, to->gps.steering);
}
}
}
void roadmap_trip_remove_point (const char *name) {
RoadMapTripPoint *result;
#ifndef J2ME
if (name == NULL) {
roadmap_trip_remove_dialog ();
return;
}
#endif
result = roadmap_trip_search (name);
if (result == NULL) {
roadmap_log (ROADMAP_ERROR, "cannot delete: point %s not found", name);
return;
}
if (result->predefined) {
result->has_value = 0;
return;
}
if (RoadMapTripFocus == result ||
RoadMapTripDeparture == result ||
RoadMapTripDestination == result) {
roadmap_trip_unfocus ();
}
if (roadmap_math_point_is_visible (&result->map)) {
RoadMapTripRefresh = 1;
}
roadmap_list_remove (&result->link);
free (result->id);
free (result->sprite);
free(result);
RoadMapTripModified = 1;
roadmap_screen_refresh();
}
void roadmap_trip_restore_focus (void) {
int i;
RoadMapTripPoint *focus;
for (i = 0; RoadMapTripPredefined[i].id != NULL; ++i) {
roadmap_list_append
(&RoadMapTripWaypoints, &RoadMapTripPredefined[i].link);
if (! RoadMapTripPredefined[i].in_trip) {
roadmap_config_get_position
(&RoadMapTripPredefined[i].config_position,
&RoadMapTripPredefined[i].map);
if (RoadMapTripPredefined[i].mobile) {
/* This is a mobile point: what was recorded was the GPS
* position, not the adjusted map position.
*/
RoadMapTripPredefined[i].gps.longitude =
RoadMapTripPredefined[i].map.longitude;
RoadMapTripPredefined[i].gps.latitude =
RoadMapTripPredefined[i].map.latitude;
RoadMapTripPredefined[i].gps.steering =
roadmap_config_get_integer
(&RoadMapTripPredefined[i].config_direction);
roadmap_adjust_position (&RoadMapTripPredefined[i].gps,
&RoadMapTripPredefined[i].map);
}
}
}
RoadMapTripGps = roadmap_trip_search ("GPS");
focus = roadmap_trip_search (roadmap_config_get (&RoadMapConfigFocusName));
if (focus == NULL) {
focus = RoadMapTripGps;
}
roadmap_trip_set_point_focus (focus);
RoadMapTripFocusChanged = 1;
}
void roadmap_trip_set_focus (const char *name) {
RoadMapTripPoint *point = roadmap_trip_search (name);
if (point == NULL) {
roadmap_log
(ROADMAP_ERROR, "cannot activate: point %s not found", name);
return;
}
//AVI
//if (point->has_value)
roadmap_trip_set_point_focus (point);
}
int roadmap_trip_is_focus_changed (void) {
if (RoadMapTripFocusChanged) {
RoadMapTripFocusChanged = 0;
return 1;
}
return 0;
}
int roadmap_trip_is_focus_moved (void) {
if (RoadMapTripFocusMoved) {
RoadMapTripFocusMoved = 0;
return 1;
}
return 0;
}
int roadmap_trip_is_refresh_needed (void) {
if (RoadMapTripRefresh ||
RoadMapTripFocusChanged || RoadMapTripFocusMoved) {
RoadMapTripFocusChanged = 0;
RoadMapTripFocusMoved = 0;
RoadMapTripRefresh = 0;
return 1;
}
return 0;
}
int roadmap_trip_get_orientation (void) {
if (RoadMapTripRotate && (RoadMapTripFocus != NULL)) {
return 360 - RoadMapTripFocus->gps.steering;
}
return 0;
}
const char *roadmap_trip_get_focus_name (void) {
if (RoadMapTripFocus != NULL) {
return RoadMapTripFocus->id;
}
return NULL;
}
const RoadMapPosition *roadmap_trip_get_focus_position (void) {
if (RoadMapTripFocus != NULL) {
return &RoadMapTripFocus->map;
}
return &RoadMapTripLastPosition;
}
const RoadMapPosition *roadmap_trip_get_position (const char *name) {
RoadMapTripPoint *trip = NULL;
trip = roadmap_trip_search (name);
if (trip == NULL) return NULL;
return &trip->map;
}
const RoadMapGpsPosition *roadmap_trip_get_gps_position(const char *name){
RoadMapTripPoint *trip = NULL;
trip = roadmap_trip_search (name);
if (trip == NULL) return NULL;
return &trip->gps;
}
void roadmap_trip_get_nodes(const char *name, int *from_node, int *to_node )
{
RoadMapTripPoint *trip = NULL;
*from_node = -1;
*to_node = -1;