From 6b1d12c04b0d871635c5b3d45a69c7812d894edc Mon Sep 17 00:00:00 2001
From: martin-s <martin-s@ffa7fe5e-494d-0410-b361-a75ebd5db220>
Date: Mon, 16 Jul 2007 22:25:39 +0000
Subject: [PATCH] Improved vehicle handling

git-svn-id: https://navit.svn.sourceforge.net/svnroot/navit/trunk@353 ffa7fe5e-494d-0410-b361-a75ebd5db220
---
 navit/src/callback.c  |   9 +++-
 navit/src/callback.h  |  25 ++++++++++++
 navit/src/cursor.c    |  42 ++++++++-----------
 navit/src/cursor.h    |   5 ++-
 navit/src/navit.c     | 111 +++++++++++++++++++++++++++++++++-----------------
 navit/src/navit.h     |   4 +-
 navit/src/vehicle.c   |  52 ++++++++++-------------
 navit/src/vehicle.h   |   7 ++--
 navit/src/xmlconfig.c |   6 ++-
 9 files changed, 155 insertions(+), 106 deletions(-)

diff --git a/navit/src/callback.c b/navit/src/callback.c
index cd45c74..49d2cd0 100644
--- a/navit/src/callback.c
+++ b/navit/src/callback.c
@@ -54,12 +54,17 @@ callback_list_add_new(struct callback_list *l, void (*func)(), int pcount, void
 }
 
 void
-callback_list_remove_destroy(struct callback_list *l, struct callback *cb)
+callback_list_remove(struct callback_list *l, struct callback *cb)
 {
 	l->list=g_list_remove(l->list, cb);
-	g_free(cb);
 }
 
+void
+callback_list_remove_destroy(struct callback_list *l, struct callback *cb)
+{
+	callback_list_remove(l, cb);
+	g_free(cb);
+}
 
 void
 callback_list_call(struct callback_list *l, int pcount, void **p)
diff --git a/navit/src/callback.h b/navit/src/callback.h
index 1976a11..769ef7d 100644
--- a/navit/src/callback.h
+++ b/navit/src/callback.h
@@ -8,9 +8,34 @@ struct callback_list *callback_list_new(void);
 struct callback *callback_new(void (*func)(void), int pcount, void **p);
 void callback_list_add(struct callback_list *l, struct callback *cb);
 struct callback *callback_list_add_new(struct callback_list *l, void (*func)(void), int pcount, void **p);
+void callback_list_remove(struct callback_list *l, struct callback *cb);
 void callback_list_remove_destroy(struct callback_list *l, struct callback *cb);
 void callback_list_call(struct callback_list *l, int pcount, void **p);
 void callback_list_destroy(struct callback_list *l);
+
+static inline struct callback *callback_new_1(void (*func)(void), void *p1)
+{
+	void *p[1];
+	p[0]=p1;
+	return callback_new(func, 1, p);
+}
+
+static inline void callback_list_call_1(struct callback_list *l, void *p1)
+{
+	void *p[1];
+	p[0]=p;
+	callback_list_call(l, 1, p);
+}
+
+static inline void callback_list_call_2(struct callback_list *l, void *p1, void *p2)
+{
+	void *p[2];
+	p[0]=p1;
+	p[1]=p2;
+	callback_list_call(l, 2, p);
+}
+
+#define callback_cast(x) (void (*)(void))(x)
 /* end of prototypes */
 #ifdef __cplusplus
 }
diff --git a/navit/src/cursor.c b/navit/src/cursor.c
index 2cc36d4..ee54cb3 100644
--- a/navit/src/cursor.c
+++ b/navit/src/cursor.c
@@ -15,15 +15,12 @@
 #include "menu.h"
 #include "vehicle.h"
 #include "navit.h"
+#include "callback.h"
 #include "color.h"
 #include "cursor.h"
 #include "compass.h"
 /* #include "track.h" */
 
-struct callback {
-        void (*func)(struct cursor *, void *data);
-        void *data;
-};
 
 
 struct cursor {
@@ -31,13 +28,13 @@ struct cursor {
 	struct graphics_gc *cursor_gc;
 	struct transformation *trans;
 	struct point cursor_pnt;
-	struct callback offscreen_callback;
-	struct callback update_callback;
+	struct callback_list *offscreen_cbl;
+	struct callback_list *update_cbl;
 	struct vehicle *v;
+	struct callback *vehicle_cb;
 	int dir;
 	int speed;
 	struct coord pos;
-	void *vehicle_callback;
 };
 
 struct coord *
@@ -198,9 +195,8 @@ cursor_get_speed(struct cursor *this)
 }
 
 static void
-cursor_update(struct vehicle *v, void *data)
+cursor_update(struct cursor *this, struct vehicle *v)
 {
-	struct cursor *this=data;
 	struct point pnt;
 	struct coord *pos;
 	double *dir;
@@ -216,11 +212,9 @@ cursor_update(struct vehicle *v, void *data)
 		this->dir=*dir;
 		this->speed=*speed;
 		this->pos=*pos;
-		if (this->update_callback.func) 
-			(*this->update_callback.func)(this, this->update_callback.data);
+		callback_list_call_1(this->update_cbl, this);
 		if (!transform(this->trans, pro, &this->pos, &pnt) || !transform_within_border(this->trans, &pnt, border)) {
-			if (this->offscreen_callback.func) 
-				(*this->offscreen_callback.func)(this, this->offscreen_callback.data);
+			callback_list_call_1(this->offscreen_cbl, this);
 			transform(this->trans, pro, &this->pos, &pnt);
 		}
 		cursor_draw(this, &pnt, *dir-transform_get_angle(this->trans, 0), *speed > 2.5);
@@ -235,29 +229,25 @@ cursor_new(struct graphics *gra, struct vehicle *v, struct color *c, struct tran
 {
 	dbg(2,"enter gra=%p v=%p c=%p t=%p\n", gra, v, c, t);
 	struct cursor *this=g_new(struct cursor,1);
+	this->offscreen_cbl=callback_list_new();
+	this->update_cbl=callback_list_new();
 	this->gra=gra;
 	this->trans=t;
 	this->cursor_gc=graphics_gc_new(gra);
 	this->v=v;
 	graphics_gc_set_foreground(this->cursor_gc, c);
 	graphics_gc_set_linewidth(this->cursor_gc, 2);
-	this->vehicle_callback=vehicle_callback_register(v, cursor_update, this);
+	this->vehicle_cb=callback_new_1(callback_cast(cursor_update), this);
+	vehicle_callback_add(v, this->vehicle_cb);
 	dbg(2,"ret=%p\n", this);
 	return this;
 }
 
 void
-cursor_register_offscreen_callback(struct cursor *this, void (*func)(struct cursor *cursor, void *data), void *data)
-{
-	this->offscreen_callback.func=func;
-	this->offscreen_callback.data=data;
-}
-
-
-void
-cursor_register_update_callback(struct cursor *this, void (*func)(struct cursor *cursor, void *data), void *data)
+cursor_add_callback(struct cursor *this, int offscreen, struct callback *cb)
 {
-	this->update_callback.func=func;
-	this->update_callback.data=data;
+	if (offscreen)
+		callback_list_add(this->offscreen_cbl, cb);
+	else
+		callback_list_add(this->update_cbl, cb);
 }
-
diff --git a/navit/src/cursor.h b/navit/src/cursor.h
index f6d5a5e..dcd21e6 100644
--- a/navit/src/cursor.h
+++ b/navit/src/cursor.h
@@ -1,4 +1,5 @@
 /* prototypes */
+struct callback;
 struct color;
 struct coord;
 struct cursor;
@@ -10,5 +11,5 @@ void cursor_pos_set(struct cursor *this, struct coord *pos);
 int cursor_get_dir(struct cursor *this);
 int cursor_get_speed(struct cursor *this);
 struct cursor *cursor_new(struct graphics *gra, struct vehicle *v, struct color *c, struct transformation *t);
-void cursor_register_offscreen_callback(struct cursor *this, void (*func)(struct cursor *cursor, void *data), void *data);
-void cursor_register_update_callback(struct cursor *this, void (*func)(struct cursor *cursor, void *data), void *data);
+void cursor_add_callback(struct cursor *this, int offscreen, struct callback *cb);
+/* end of prototypes */
diff --git a/navit/src/navit.c b/navit/src/navit.c
index a8d134e..95459a2 100644
--- a/navit/src/navit.c
+++ b/navit/src/navit.c
@@ -30,6 +30,17 @@
 
 #define _(STRING)    gettext(STRING)
 
+struct navit_vehicle {
+	int update;
+	int update_curr;
+	int follow;
+	int follow_curr;
+	struct cursor *cursor;
+	struct vehicle *vehicle;
+	struct callback *offscreen_cb;
+	struct callback *update_cb;
+};
+
 struct navit {
 	GList *mapsets;
 	GList *layouts;
@@ -46,19 +57,16 @@ struct navit {
 	struct menu *menubar;
 	struct route *route;
 	struct navigation *navigation;
-	struct cursor *cursor;
 	struct speech *speech;
-	struct vehicle *vehicle;
 	struct tracking *tracking;
 	struct map_flags *flags;
 	int ready;
 	struct window *win;
 	struct displaylist *displaylist;
 	int cursor_flag;
-	int update;
-	int follow;
-	int update_curr;
-	int follow_curr;
+	GList *vehicles;
+	struct navit_vehicle *vehicle;
+	struct callback_list *vehicle_cbl;
 	int pid;
 	struct callback *nav_speech_cb;
 	struct callback *roadbook_callback;
@@ -453,7 +461,7 @@ navit_window_roadbook_update(struct navit *this_)
 static void
 navit_window_roadbook_new(struct navit *this_)
 {
-	this_->roadbook_callback=callback_new(navit_window_roadbook_update, 1, &this_);
+	this_->roadbook_callback=callback_new_1(callback_cast(navit_window_roadbook_update), this_);
 	navigation_register_callback(this_->navigation, navigation_mode_long, this_->roadbook_callback);
 	this_->roadbook_window=gui_datawindow_new(this_->gui, "Roadbook", NULL, NULL);
 }
@@ -490,11 +498,11 @@ navit_window_items_new(struct navit *this_)
 	sel.rect.rl.y=center->y-dist;
 	hash=g_hash_table_new(g_int_hash, g_int_equal);
 	type1=type_bookmark;
-	g_hash_table_insert(hash, &type1, 1);
+	g_hash_table_insert(hash, &type1, (void *)1);
 	type2=type_poi_camping;
-	g_hash_table_insert(hash, &type2, 1);
+	g_hash_table_insert(hash, &type2, (void *)1);
 	type3=type_roadbook;
-	g_hash_table_insert(hash, &type3, 1);
+	g_hash_table_insert(hash, &type3, (void *)1);
 	dbg(2,"0x%x,0x%x - 0x%x,0x%x\n", sel.rect.lu.x, sel.rect.lu.y, sel.rect.rl.x, sel.rect.rl.y);
 	win=gui_datawindow_new(this_->gui, "Itemlist", NULL, NULL);
 	h=mapset_open(navit_get_mapset(this_));
@@ -557,7 +565,7 @@ navit_init(struct navit *this_)
 			navit_add_menu_former_destinations(this_, NULL, this_->route);
 	}
 	if (this_->navigation && this_->speech) {
-		this_->nav_speech_cb=callback_new(navit_speak, 1, &this_);
+		this_->nav_speech_cb=callback_new_1(callback_cast(navit_speak), this_);
 		navigation_register_callback(this_->navigation, navigation_mode_speech, this_->nav_speech_cb);
 #if 0
 #endif
@@ -615,53 +623,56 @@ navit_toggle_cursor(struct navit *this_)
 }
 
 static void
-navit_cursor_offscreen(struct cursor *cursor, void *this__p)
+navit_cursor_offscreen(struct navit *this_, struct cursor *cursor)
 {
-	struct navit *this_=this__p;
-
-	if (this_->cursor_flag)
-		navit_set_center(this_, cursor_pos_get(cursor));
+	if (!this_->cursor_flag || !this_->vehicle || this_->vehicle->cursor != cursor)
+		return;
+	navit_set_center(this_, cursor_pos_get(cursor));
 }
 
 static void
-navit_cursor_update(struct cursor *cursor, void *this__p)
+navit_cursor_update(struct navit *this_, struct cursor *cursor)
 {
-	struct navit *this_=this__p;
 	struct coord *cursor_c=cursor_pos_get(cursor);
 	int dir=cursor_get_dir(cursor);
 	int speed=cursor_get_speed(cursor);
 
+	if (!this_->vehicle || this_->vehicle->cursor != cursor)
+		return;
+
+	cursor_c=cursor_pos_get(cursor);
+	dir=cursor_get_dir(cursor);
+	speed=cursor_get_speed(cursor);
 
 	if (this_->pid && speed > 2)
 		kill(this_->pid, SIGWINCH);
-
-
 	if (this_->tracking) {
 		struct coord c=*cursor_c;
 		if (tracking_update(this_->tracking, &c, dir)) {
 			cursor_c=&c;
 			cursor_pos_set(cursor, cursor_c);
-			if (this_->route && this_->update_curr == 1)
+			if (this_->route && this_->vehicle->update_curr == 1) 
 				route_set_position_from_tracking(this_->route, this_->tracking);
 		}
 	} else {
-		if (this_->route && this_->update_curr == 1)
+		if (this_->route && this_->vehicle->update_curr == 1)
 			route_set_position(this_->route, cursor_c);
 	}
-	if (this_->route && this_->update_curr == 1)
+	if (this_->route && this_->vehicle->update_curr == 1)
 		navigation_update(this_->navigation, this_->route);
 	if (this_->cursor_flag) {
-		if (this_->follow_curr == 1)
+		if (this_->vehicle->follow_curr == 1)
 			navit_set_center_cursor(this_, cursor_c, dir, 50, 80);
 	}
-	if (this_->follow_curr > 1)
-		this_->follow_curr--;
+	if (this_->vehicle->follow_curr > 1)
+		this_->vehicle->follow_curr--;
 	else
-		this_->follow_curr=this_->follow;
-	if (this_->update_curr > 1)
-		this_->update_curr--;
+		this_->vehicle->follow_curr=this_->vehicle->follow;
+	if (this_->vehicle->update_curr > 1)
+		this_->vehicle->update_curr--;
 	else
-		this_->update_curr=this_->update;
+		this_->vehicle->update_curr=this_->vehicle->update;
+	callback_list_call_2(this_->vehicle_cbl, this_, this_->vehicle->vehicle);
 }
 
 void
@@ -676,15 +687,39 @@ navit_set_position(struct navit *this_, struct coord *c)
 	navit_draw(this_);
 }
 
+struct navit_vehicle *
+navit_add_vehicle(struct navit *this_, struct vehicle *v, struct color *c, int update, int follow)
+{
+	struct navit_vehicle *nv=g_new0(struct navit_vehicle, 1);
+	nv->vehicle=v;
+	nv->update_curr=nv->update=update;
+	nv->follow_curr=nv->follow=follow;
+	nv->cursor=cursor_new(this_->gra, v, c, this_->trans);
+	nv->offscreen_cb=callback_new_1(callback_cast(navit_cursor_offscreen), this_);
+	cursor_add_callback(nv->cursor, 1, nv->offscreen_cb);
+	nv->update_cb=callback_new_1(callback_cast(navit_cursor_update), this_);
+	cursor_add_callback(nv->cursor, 0, nv->update_cb);
+
+	this_->vehicles=g_list_append(this_->vehicles, nv);
+	return nv;
+}
+
+void
+navit_add_vehicle_cb(struct navit *this_, struct callback *cb)
+{
+	callback_list_add(this_->vehicle_cbl, cb);
+}
+
+void
+navit_remove_vehicle_cb(struct navit *this_, struct callback *cb)
+{
+	callback_list_remove(this_->vehicle_cbl, cb);
+}
+
 void
-navit_vehicle_add(struct navit *this_, struct vehicle *v, struct color *c, int update, int follow, int active)
-{
-	this_->vehicle=v;
-	this_->update_curr=this_->update=update;
-	this_->follow_curr=this_->follow=follow;
-	this_->cursor=cursor_new(this_->gra, v, c, this_->trans);
-	cursor_register_offscreen_callback(this_->cursor, navit_cursor_offscreen, this_);
-	cursor_register_update_callback(this_->cursor, navit_cursor_update, this_);
+navit_set_vehicle(struct navit *this_, struct navit_vehicle *nv)
+{
+	this_->vehicle=nv;
 }
 
 void
diff --git a/navit/src/navit.h b/navit/src/navit.h
index da527ff..6b905af 100644
--- a/navit/src/navit.h
+++ b/navit/src/navit.h
@@ -13,6 +13,7 @@ struct mapset;
 struct menu;
 struct navigation;
 struct navit;
+struct navit_vehicle;
 struct point;
 struct route;
 struct speech;
@@ -43,7 +44,8 @@ void navit_set_center(struct navit *this_, struct coord *center);
 void navit_set_center_screen(struct navit *this_, struct point *p);
 void navit_toggle_cursor(struct navit *this_);
 void navit_set_position(struct navit *this_, struct coord *c);
-void navit_vehicle_add(struct navit *this_, struct vehicle *v, struct color *c, int update, int follow, int active);
+struct navit_vehicle *navit_add_vehicle(struct navit *this_, struct vehicle *v, struct color *c, int update, int follow);
+void navit_set_vehicle(struct navit *this_, struct navit_vehicle *nv);
 void navit_tracking_add(struct navit *this_, struct tracking *tracking);
 void navit_route_add(struct navit *this_, struct route *route);
 void navit_navigation_add(struct navit *this_, struct navigation *navigation);
diff --git a/navit/src/vehicle.c b/navit/src/vehicle.c
index 103d548..cf3ff24 100644
--- a/navit/src/vehicle.c
+++ b/navit/src/vehicle.c
@@ -17,6 +17,7 @@
 #endif
 #include "debug.h"
 #include "coord.h"
+#include "callback.h"
 #include "transform.h"
 #include "projection.h"
 #include "statusbar.h"
@@ -60,8 +61,10 @@ struct vehicle {
 #define BUFFER_SIZE 256
 	char buffer[BUFFER_SIZE];
 	int buffer_pos;
+
+	struct callback_list *cbl;
 	struct vehicle *child;
-	GList *callbacks;
+	struct callback *child_cb;
 
 	int magic;
 	int is_udp;
@@ -96,17 +99,6 @@ vehicle_projection(struct vehicle *this)
 	return projection_mg;
 }
 
-static void
-vehicle_call_callbacks(struct vehicle *this)
-{
-	GList *item=g_list_first(this->callbacks);
-	while (item) {
-		struct callback *cb=item->data;
-		(*cb->func)(this, cb->data);
-		item=g_list_next(item);
-	}
-}
-
 struct coord *
 vehicle_pos_get(struct vehicle *this)
 {
@@ -133,7 +125,7 @@ vehicle_set_position(struct vehicle *this, struct coord *pos)
 	this->curr.y=this->current_pos.y;
 	this->delta.x=0;
 	this->delta.y=0;
-	vehicle_call_callbacks(this);
+	callback_list_call_1(this->cbl, this);
 }
 
 static int
@@ -220,7 +212,7 @@ vehicle_parse_gps(struct vehicle *this, char *buffer)
 		this->curr.x=this->current_pos.x;
 		this->curr.y=this->current_pos.y;
 		this->timer_count=0;
-		vehicle_call_callbacks(this);
+		callback_list_call_1(this->cbl, this);
 		if (this->is_file) {
 			disable_watch(this);
 			g_timeout_add(1000, enable_watch_timer, this);
@@ -318,7 +310,7 @@ vehicle_gps_callback(struct gps_data_t *data, char *buf, size_t len, int level)
 		this->curr.x=this->current_pos.x;
 		this->curr.y=this->current_pos.y;
 		this->timer_count=0;
-		vehicle_call_callbacks(this);
+		callback_list_call_1(this->cbl, this);
 		data->set &= ~LATLON_SET;
 	}
 	if (data->set & ALTITUDE_SET) {
@@ -363,7 +355,7 @@ struct packet {
 			int y __attribute__ ((packed));
 			unsigned char speed;
 			unsigned char dir;
-		} pos __attribute__ ((packed)) ;
+		} pos;
 	} u;
 } __attribute__ ((packed)) ;
 
@@ -381,14 +373,13 @@ vehicle_udp_recv(struct vehicle *this)
 		this->current_pos.y=pkt.u.pos.y;
 		this->speed=pkt.u.pos.speed;
 		this->dir=pkt.u.pos.dir*2;
-		vehicle_call_callbacks(this);
+		callback_list_call_1(this->cbl, this);
 	}
 }
 
 static void
-vehicle_udp_update(struct vehicle *child, void *data)
+vehicle_udp_update(struct vehicle *this, struct vehicle *child)
 {
-	struct vehicle *this=(struct vehicle *)data;
 	struct coord *pos=&child->current_pos;
 	struct packet pkt;
 	int speed=child->speed;
@@ -405,7 +396,7 @@ vehicle_udp_update(struct vehicle *child, void *data)
 	this->current_pos=child->current_pos;
 	this->speed=child->speed;
 	this->dir=child->dir;
-	vehicle_call_callbacks(this);
+	callback_list_call_1(this->cbl, this);
 }
 
 static int
@@ -452,7 +443,8 @@ vehicle_udp_open(struct vehicle *this)
 		if (!this->child) {
 			dbg(3,"child=%s\n", child);
 			this->child=vehicle_new(child);
-			vehicle_callback_register(this->child, vehicle_udp_update, this);
+			this->child_cb=callback_new_1(callback_cast(vehicle_udp_update), this);
+			vehicle_callback_add(this->child, this->child_cb);
 		}
 	} else {
 		vehicle_udp_query(this);
@@ -603,6 +595,8 @@ vehicle_new(const char *url)
 {
 	struct vehicle *this;
 	this=g_new0(struct vehicle,1);
+
+	this->cbl=callback_list_new();
 	this->url=g_strdup(url);
 	this->fd=-1;
 
@@ -623,21 +617,16 @@ vehicle_new(const char *url)
 	return this;
 }
 
-void *
-vehicle_callback_register(struct vehicle *this, void (*func)(struct vehicle *, void *data), void *data)
+void
+vehicle_callback_add(struct vehicle *this, struct callback *cb)
 {
-	struct callback *cb;
-	cb=g_new(struct callback, 1);
-	cb->func=func;
-	cb->data=data;
-	this->callbacks=g_list_prepend(this->callbacks, cb);
-	return cb;
+	callback_list_add(this->cbl, cb);
 }
 
 void
-vehicle_callback_unregister(struct vehicle *this, void *handle)
+vehicle_callback_remove(struct vehicle *this, struct callback *cb)
 {
-	this->callbacks=g_list_remove(this->callbacks, handle);
+	callback_list_remove(this->cbl, cb);
 }
 
 
@@ -645,6 +634,7 @@ void
 vehicle_destroy(struct vehicle *this)
 {
 	vehicle_close(this);
+	callback_list_destroy(this->cbl);
 	g_free(this->url);
 	g_free(this);
 }
diff --git a/navit/src/vehicle.h b/navit/src/vehicle.h
index cb045a9..ccd673a 100644
--- a/navit/src/vehicle.h
+++ b/navit/src/vehicle.h
@@ -1,5 +1,6 @@
 /* prototypes */
 enum projection;
+struct callback;
 struct coord;
 struct vehicle;
 enum projection vehicle_projection(struct vehicle *this);
@@ -8,9 +9,7 @@ double *vehicle_speed_get(struct vehicle *this);
 double *vehicle_dir_get(struct vehicle *this);
 void vehicle_set_position(struct vehicle *this, struct coord *pos);
 struct vehicle *vehicle_new(const char *url);
-int vehicle_get_active(struct vehicle *this);
-void vehicle_set_active(struct vehicle *this, int active);
-void *vehicle_callback_register(struct vehicle *this, void (*func)(struct vehicle *, void *data), void *data);
-void vehicle_callback_unregister(struct vehicle *this, void *handle);
+void vehicle_callback_add(struct vehicle *this, struct callback *cb);
+void vehicle_callback_remove(struct vehicle *this, struct callback *cb);
 void vehicle_destroy(struct vehicle *this);
 /* end of prototypes */
diff --git a/navit/src/xmlconfig.c b/navit/src/xmlconfig.c
index 944dd86..5513eac 100644
--- a/navit/src/xmlconfig.c
+++ b/navit/src/xmlconfig.c
@@ -193,6 +193,7 @@ xmlconfig_vehicle(struct xmlstate *state)
 	const char *value;
 	struct color color;
 	int update=1, follow=0, active;
+	struct navit_vehicle *nv;
 
 	if (! s)
 		return 0;
@@ -206,8 +207,9 @@ xmlconfig_vehicle(struct xmlstate *state)
 	if ((value=find_attribute(state, "follow", 0)))
 		follow=convert_number(value);
 	active=find_boolean(state, "active", 1, 0);
-
-	navit_vehicle_add(state->parent->element_object, state->element_object, &color, update, follow, active);
+	nv=navit_add_vehicle(state->parent->element_object, state->element_object, &color, update, follow);
+	if (active)
+		navit_set_vehicle(state->parent->element_object, nv);
 	return 1;
 }
 
-- 
2.7.4