Delete navit.c

1 files changed, 0 insertions, 3830 deletions

diff --git a/navit.c b/navit.c
deleted file mode 100644
index bf7086261..000000000
--- a/navit.c
+++ /dev/null
@@ -1,3830 +0,0 @@
-/**
- * Navit, a modular navigation system.
- * Copyright (C) 2005-2009 Navit Team
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * 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., 51 Franklin Street, Fifth Floor,
- * Boston, MA  02110-1301, USA.
- */
-
-#define _USE_MATH_DEFINES 1
-#include "config.h"
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <stdio.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <signal.h>
-#include <string.h>
-#include <fcntl.h>
-#include <glib.h>
-#include <math.h>
-#include <time.h>
-#include "debug.h"
-#include "navit.h"
-#include "callback.h"
-#include "gui.h"
-#include "item.h"
-#include "xmlconfig.h"
-#include "projection.h"
-#include "map.h"
-#include "mapset.h"
-#include "main.h"
-#include "coord.h"
-#include "point.h"
-#include "transform.h"
-#include "traffic.h"
-#include "param.h"
-#include "menu.h"
-#include "graphics.h"
-#include "popup.h"
-#include "data_window.h"
-#include "route.h"
-#include "navigation.h"
-#include "speech.h"
-#include "track.h"
-#include "vehicle.h"
-#include "layout.h"
-#include "log.h"
-#include "attr.h"
-#include "event.h"
-#include "file.h"
-#include "profile.h"
-#include "command.h"
-#include "navit_nls.h"
-#include "map.h"
-#include "util.h"
-#include "messages.h"
-#include "vehicleprofile.h"
-#include "sunriset.h"
-#include "bookmarks.h"
-#ifdef HAVE_API_WIN32_BASE
-#include <windows.h>
-#include "util.h"
-#endif
-#ifdef HAVE_API_WIN32_CE
-#include "libc.h"
-#endif
-
-/* define string for bookmark handling */
-#define TEXTFILE_COMMENT_NAVI_STOPPED "# navigation stopped\n"
-
-/**
- * @defgroup navit The navit core instance
- * @brief navit is the object containing most global data structures.
- *
- * Among others:
- * - a set of maps
- * - one or more vehicles
- * - a graphics object for rendering the map
- * - a gui object for displaying the user interface
- * - a route object
- * - a navigation object
- * @{
- */
-
-//! The vehicle used for navigation.
-struct navit_vehicle {
-    int follow;
-    /*! Limit of the follow counter. See navit_add_vehicle */
-    int follow_curr;
-    /*! Deprecated : follow counter itself. When it reaches 'update' counts, map is recentered*/
-    struct coord coord;
-    int dir;
-    int speed;
-    struct coord last; /*< Position of the last update of this vehicle */
-    struct vehicle *vehicle;
-    struct attr callback;
-    int animate_cursor;
-};
-
-struct navit {
-    NAVIT_OBJECT
-    struct attr self;
-    GList *mapsets;
-    GList *layouts;
-    struct gui *gui;
-    char *default_layout_name;	/*!< The default layout indicated by the config file (if any) */
-    struct layout *layout_current;	/*!< The current layout theme used to display the map */
-    struct graphics *gra;
-    struct action *action;
-    struct transformation *trans, *trans_cursor;
-    struct compass *compass;
-    struct route *route;
-    struct navigation *navigation;
-    struct speech *speech;
-    struct tracking *tracking;
-    int ready;
-    struct window *win;
-    struct displaylist *displaylist;
-    int tracking_flag;
-    int orientation;
-    int recentdest_count;
-    int osd_configuration;
-    GList *vehicles;
-    GList *windows_items;
-    struct navit_vehicle *vehicle;
-    struct callback_list *attr_cbl;
-    struct callback *nav_speech_cb, *roadbook_callback, *popup_callback, *route_cb, *progress_cb;
-    struct datawindow *roadbook_window;
-    struct map *former_destination;
-    struct point pressed, last, current;
-    int button_pressed,moved,popped,zoomed;
-    int center_timeout;
-    int autozoom_secs;
-    int autozoom_min;
-    int autozoom_max;
-    int autozoom_active;
-    int autozoom_paused;
-    struct event_timeout *button_timeout, *motion_timeout;
-    struct callback *motion_timeout_callback;
-    int ignore_button;
-    int ignore_graphics_events;
-    struct log *textfile_debug_log;
-    struct pcoord destination;
-    int destination_valid;
-    int blocked;	/**< Whether draw operations are currently blocked. This can be a combination of the
-					     following flags:
-					     1: draw operations are blocked
-					     2: draw operations are pending, requiring a redraw once draw operations are unblocked */
-    int w,h;
-    int drag_bitmap;
-    int use_mousewheel;
-    struct messagelist *messages;
-    struct callback *resize_callback,*button_callback,*motion_callback,*predraw_callback;
-    struct vehicleprofile *vehicleprofile;
-    GList *vehicleprofiles;
-    int pitch;
-    int follow_cursor;
-    int prevTs;
-    int graphics_flags;
-    int zoom_min, zoom_max;
-    int radius;
-    struct bookmarks *bookmarks;
-    int flags;
-    /* 1=No graphics ok */
-    /* 2=No gui ok */
-    int border;
-    int imperial;
-    int waypoints_flag;
-    struct coord_geo center;
-    int auto_switch; /*auto switching between day/night layout enabled ?*/
-};
-
-struct gui *main_loop_gui;
-
-struct attr_iter {
-    void *iter;
-    union {
-        GList *list;
-        struct mapset_handle *mapset_handle;
-    } u;
-};
-
-static void navit_vehicle_update_position(struct navit *this_, struct navit_vehicle *nv);
-static void navit_vehicle_draw(struct navit *this_, struct navit_vehicle *nv, struct point *pnt);
-static int navit_add_vehicle(struct navit *this_, struct vehicle *v);
-static int navit_set_attr_do(struct navit *this_, struct attr *attr, int init);
-static int navit_get_cursor_pnt(struct navit *this_, struct point *p, int keep_orientation, int *dir);
-static void navit_set_cursors(struct navit *this_);
-static int navit_cmd_zoom_to_route(struct navit *this, char *function, struct attr **in, struct attr ***out);
-static int navit_cmd_set_center_cursor(struct navit *this_, char *function, struct attr **in, struct attr ***out);
-static int navit_cmd_announcer_toggle(struct navit *this_, char *function, struct attr **in, struct attr ***out);
-static void navit_set_vehicle(struct navit *this_, struct navit_vehicle *nv);
-static int navit_set_vehicleprofile(struct navit *this_, struct vehicleprofile *vp);
-static int navit_cmd_switch_layout_day_night(struct navit *this_, char *function, struct attr **in, struct attr ***out);
-struct object_func navit_func;
-
-struct navit *global_navit;
-
-void navit_add_mapset(struct navit *this_, struct mapset *ms) {
-    this_->mapsets = g_list_append(this_->mapsets, ms);
-}
-
-/**
- * @brief Get the current mapset
- *
- * @param this_ The navit instance
- *
- * @return A pointer to the current mapset
- */
-struct mapset *
-navit_get_mapset(struct navit *this_) {
-    if(this_->mapsets) {
-        return this_->mapsets->data;
-    } else {
-        dbg(lvl_error,"No mapsets enabled! Is it on purpose? Navit can't draw a map. Please check your navit.xml");
-    }
-    return NULL;
-}
-
-/**
- * @brief Get the search result map (and create it if it does not exist)
- *
- * @param this_ The navit instance
- *
- * @return A pointer to the map named "search_results" or NULL if there wasa failure
- */
-struct map *navit_get_search_results_map(struct navit *this_) {
-
-    struct mapset *ms;
-    struct map *map;
-
-    ms=navit_get_mapset(this_);
-
-    if(!ms)
-        return NULL;
-
-    map=mapset_get_map_by_name(ms, "search_results");
-    if(!map) {
-        struct attr *attrs[10], attrmap;
-        enum attr_type types[]= {attr_position_longitude,attr_position_latitude,attr_label,attr_none};
-        int i;
-
-        attrs[0]=g_new0(struct attr,1);
-        attrs[0]->type=attr_type;
-        attrs[0]->u.str="csv";
-
-        attrs[1]=g_new0(struct attr,1);
-        attrs[1]->type=attr_name;
-        attrs[1]->u.str="search_results";
-
-        attrs[2]=g_new0(struct attr,1);
-        attrs[2]->type=attr_charset;
-        attrs[2]->u.str="utf-8";
-
-        attrs[3]=g_new0(struct attr,1);
-        attrs[3]->type=attr_item_type;
-        attrs[3]->u.num=type_found_item;
-
-        attrs[4]=g_new0(struct attr,1);
-        attrs[4]->type=attr_attr_types;
-        attrs[4]->u.attr_types=types;
-        attrs[5]=NULL;
-
-        attrmap.type=attr_map;
-        map=attrmap.u.map=map_new(NULL,attrs);
-        if(map)
-            mapset_add_attr(ms,&attrmap);
-
-        for(i=0; attrs[i]; i++)
-            g_free(attrs[i]);
-    }
-    return map;
-}
-
-/**
- * @brief Populate a map containing one or more search result points
- *
- * These search results will be displayed as an overlay on the top of the geographic map.
- *
- * @warning Each call to this function will replace currently displayed results, it will not add to them
- *
- * @param this_ The navit instance
- * @param search_results A GList storing {@code struct lcoord} elements to display on the result map
- *                       If this argument in NULL, all existing results will be removed from the map
- * @param[in,out] coord_rect An optional rectangular zone that will be extended to contain all result points
- *                           or NULL if no zone needs to be computed
- * @return The number of results actually added to the map
- */
-int navit_populate_search_results_map(struct navit *this_, GList *search_results, struct coord_rect *r) {
-    struct map *map;
-    struct map_rect *mr;
-    struct item *item;
-    GList *curr_result = search_results;
-    int count;
-    char *name_label;
-
-    map = navit_get_search_results_map(this_);
-    if(!map)
-        return 0;
-
-    mr = map_rect_new(map, NULL);
-
-    if(!mr)
-        return 0;
-
-    /* Clean the map */
-    while((item = map_rect_get_item(mr))!=NULL) {
-        item_type_set(item,type_none);
-    }
-
-    if(!search_results) {
-        map_rect_destroy(mr);
-        dbg(lvl_warning,"NULL result table - only map clean up is done.");
-        return 0;
-    }
-
-    /* Populate the map with search results*/
-    for(curr_result = search_results, count=0; curr_result; curr_result=g_list_next(curr_result)) {
-        struct lcoord *point = curr_result->data;
-        struct item* it;
-        if(point->label==NULL)
-            continue;
-        dbg(lvl_info,"%s",point->label);
-        it=map_rect_create_item(mr,type_found_item);
-        if(it) {
-            struct attr a;
-            item_coord_set(it, &(point->c), 1, change_mode_modify);
-            a.type=attr_label;
-            name_label = g_strdup(point->label);
-            square_shape_str(name_label);
-            a.u.str=name_label;
-            item_attr_set(it, &a, change_mode_modify);
-            if (r) {
-                if(!count++)
-                    r->lu=r->rl=point->c;
-                else
-                    coord_rect_extend(r,&(point->c));
-            }
-        }
-    }
-    map_rect_destroy(mr);
-    return count;
-}
-
-struct tracking *
-navit_get_tracking(struct navit *this_) {
-    return this_->tracking;
-}
-
-/**
- * @brief	Get the user data directory.
- * @param[in]	 create	- create the directory if it does not exist
- *
- * @return	char * to the data directory string.
- *
- * returns the directory used to store user data files (center.txt,
- * destination.txt, bookmark.txt, ...)
- *
- */
-char* navit_get_user_data_directory(int create) {
-    char *dir;
-    dir = getenv("NAVIT_USER_DATADIR");
-    if (create && !file_exists(dir)) {
-        dbg(lvl_debug,"creating dir %s", dir);
-        if (file_mkdir(dir,0)) {
-            dbg(lvl_error,"failed creating dir %s", dir);
-            return NULL;
-        }
-    }
-    return dir;
-}
-
-
-void navit_draw_async(struct navit *this_, int async) {
-
-    if (this_->blocked) {
-        this_->blocked |= 2;
-        return;
-    }
-    transform_setup_source_rect(this_->trans);
-    graphics_draw(this_->gra, this_->displaylist, this_->mapsets->data, this_->trans, this_->layout_current, async, NULL,
-                  this_->graphics_flags|1);
-}
-
-void navit_draw(struct navit *this_) {
-    if (this_->ready == 3)
-        navit_draw_async(this_, 0);
-}
-
-int navit_get_ready(struct navit *this_) {
-    return this_->ready;
-}
-
-
-
-void navit_draw_displaylist(struct navit *this_) {
-    if (this_->ready == 3)
-        graphics_displaylist_draw(this_->gra, this_->displaylist, this_->trans, this_->layout_current, this_->graphics_flags|1);
-}
-
-static void navit_map_progress(struct navit *this_) {
-    struct map *map;
-    struct mapset *ms;
-    struct mapset_handle *msh;
-    struct attr attr;
-    struct point p;
-    if (this_->ready != 3)
-        return;
-    p.x=10;
-    p.y=32;
-
-    ms=this_->mapsets->data;
-    msh=mapset_open(ms);
-    while (msh && (map=mapset_next(msh, 0))) {
-        if (map_get_attr(map, attr_progress, &attr, NULL)) {
-            char *str=g_strdup_printf("%s           ",attr.u.str);
-            graphics_draw_mode(this_->gra, draw_mode_begin);
-            graphics_draw_text_std(this_->gra, 16, str, &p);
-            g_free(str);
-            p.y+=32;
-            graphics_draw_mode(this_->gra, draw_mode_end);
-        }
-    }
-    mapset_close(msh);
-}
-
-static void navit_redraw_route(struct navit *this_, struct route *route, struct attr *attr) {
-    int updated;
-    if (attr->type != attr_route_status)
-        return;
-    updated=attr->u.num;
-    if (this_->ready != 3)
-        return;
-    if (updated != route_status_path_done_new)
-        return;
-    if (this_->vehicle) {
-        if (this_->vehicle->follow_curr == 1)
-            return;
-        if (this_->vehicle->follow_curr <= this_->vehicle->follow)
-            this_->vehicle->follow_curr=this_->vehicle->follow;
-    }
-    navit_draw(this_);
-}
-
-void navit_handle_resize(struct navit *this_, int w, int h) {
-    struct map_selection sel;
-    int callback=(this_->ready == 1);
-    this_->ready |= 2;
-    memset(&sel, 0, sizeof(sel));
-    this_->w=w;
-    this_->h=h;
-    sel.u.p_rect.rl.x=w;
-    sel.u.p_rect.rl.y=h;
-    transform_set_screen_selection(this_->trans, &sel);
-    graphics_init(this_->gra);
-    graphics_set_rect(this_->gra, &sel.u.p_rect);
-    if (callback)
-        callback_list_call_attr_1(this_->attr_cbl, attr_graphics_ready, this_);
-    if (this_->ready == 3)
-        navit_draw_async(this_, 1);
-}
-
-static void navit_resize(void *data, int w, int h) {
-    struct navit *this=data;
-    if (!this->ignore_graphics_events)
-        navit_handle_resize(this, w, h);
-}
-
-int navit_get_width(struct navit *this_) {
-    return this_->w;
-}
-
-
-int navit_get_height(struct navit *this_) {
-    return this_->h;
-}
-
-static void navit_popup(void *data) {
-    struct navit *this_=data;
-    popup(this_, 1, &this_->pressed);
-    this_->button_timeout=NULL;
-    this_->popped=1;
-}
-
-
-/**
- * @brief Sets a flag indicating that the current button event should be ignored by subsequent handlers.
- *
- * Calling this function will set the {@code ignore_button} member to {@code true} and return its previous state.
- * The default handler, {@link navit_handle_button(navit *, int, int, point *, callback *)} calls this function
- * just before the actual event handling core and aborts if the result is {@code true}. In order to prevent
- * multiple handlers from firing on a single event, custom button click handlers should implement the same logic
- * for events they wish to handle.
- *
- * If a handler wishes to pass down an event to other handlers, it must abort without calling this function.
- *
- * @param this_ The navit instance
- * @return {@code true} if the caller should ignore the button event, {@code false} if it should handle it
- */
-int navit_ignore_button(struct navit *this_) {
-    if (this_->ignore_button)
-        return 1;
-    this_->ignore_button=1;
-    return 0;
-}
-
-void navit_ignore_graphics_events(struct navit *this_, int ignore) {
-    this_->ignore_graphics_events=ignore;
-}
-
-static int navit_restrict_to_range(int value, int min, int max) {
-    if (value>max) {
-        value = max;
-    }
-    if (value<min) {
-        value = min;
-    }
-    return value;
-}
-
-static void navit_restrict_map_center_to_world_boundingbox(struct transformation *tr, struct coord *new_center) {
-    new_center->x = navit_restrict_to_range(new_center->x, WORLD_BOUNDINGBOX_MIN_X, WORLD_BOUNDINGBOX_MAX_X);
-    new_center->y = navit_restrict_to_range(new_center->y, WORLD_BOUNDINGBOX_MIN_Y, WORLD_BOUNDINGBOX_MAX_Y);
-}
-
-/**
- * @brief Change map center position by translating from "old" to "new".
- */
-static void update_transformation(struct transformation *tr, struct point *old, struct point *new) {
-    /* Code for rotation was removed in rev. 5252; see Trac #1078. */
-    struct coord coord_old,coord_new;
-    struct coord center_new,*center_old;
-    if (!transform_reverse(tr, old, &coord_old))
-        return;
-    if (!transform_reverse(tr, new, &coord_new))
-        return;
-    center_old=transform_get_center(tr);
-    center_new.x=center_old->x+coord_old.x-coord_new.x;
-    center_new.y=center_old->y+coord_old.y-coord_new.y;
-    navit_restrict_map_center_to_world_boundingbox(tr, &center_new);
-    dbg(lvl_debug,"change center from 0x%x,0x%x to 0x%x,0x%x", center_old->x, center_old->y, center_new.x, center_new.y);
-    transform_set_center(tr, &center_new);
-}
-
-void navit_set_timeout(struct navit *this_) {
-    struct attr follow;
-    follow.type=attr_follow;
-    follow.u.num=this_->center_timeout;
-    navit_set_attr(this_, &follow);
-}
-
-int navit_handle_button(struct navit *this_, int pressed, int button, struct point *p,
-                        struct callback *popup_callback) {
-    int border=16;
-
-    dbg(lvl_debug,"button %d %s (ignore: %d)",button,pressed?"pressed":"released",this_->ignore_button);
-    callback_list_call_attr_4(this_->attr_cbl, attr_button, this_, GINT_TO_POINTER(pressed), GINT_TO_POINTER(button), p);
-    if (this_->ignore_button) {
-        this_->ignore_button=0;
-        return 0;
-    }
-    if (pressed) {
-        this_->pressed=*p;
-        this_->last=*p;
-        this_->zoomed=0;
-        if (button == 1) {
-            this_->button_pressed=1;
-            this_->moved=0;
-            this_->popped=0;
-            if (popup_callback)
-                this_->button_timeout=event_add_timeout(500, 0, popup_callback);
-        }
-        if (button == 2)
-            navit_set_center_screen(this_, p, 1);
-        if (button == 3)
-            popup(this_, button, p);
-        if (button == 4 && this_->use_mousewheel) {
-            this_->zoomed = 1;
-            navit_zoom_in(this_, 2, p);
-        }
-        if (button == 5 && this_->use_mousewheel) {
-            this_->zoomed = 1;
-            navit_zoom_out(this_, 2, p);
-        }
-    } else {
-
-        this_->button_pressed=0;
-        if (this_->button_timeout) {
-            event_remove_timeout(this_->button_timeout);
-            this_->button_timeout=NULL;
-            if (! this_->moved && ! transform_within_border(this_->trans, p, border)) {
-                navit_set_center_screen(this_, p, !this_->zoomed);
-            }
-        }
-        if (this_->motion_timeout) {
-            event_remove_timeout(this_->motion_timeout);
-            this_->motion_timeout=NULL;
-        }
-        if (this_->moved) {
-            dbg(lvl_debug, "mouse drag (%d, %d)->(%d, %d)", this_->pressed.x, this_->pressed.y, p->x, p->y);
-            update_transformation(this_->trans, &this_->pressed, p);
-            graphics_draw_drag(this_->gra, NULL);
-            transform_copy(this_->trans, this_->trans_cursor);
-            graphics_overlay_disable(this_->gra, 0);
-            if (!this_->zoomed)
-                navit_set_timeout(this_);
-            navit_draw(this_);
-        } else
-            return 1;
-    }
-    return 0;
-}
-
-static void navit_button(void *data, int pressed, int button, struct point *p) {
-    struct navit *this=data;
-    dbg(lvl_debug,"enter %d %d ignore %d",pressed,button,this->ignore_graphics_events);
-    if (!this->ignore_graphics_events) {
-        if (! this->popup_callback)
-            this->popup_callback=callback_new_1(callback_cast(navit_popup), this);
-        navit_handle_button(this, pressed, button, p, this->popup_callback);
-    }
-}
-
-
-static void navit_motion_timeout(struct navit *this_) {
-    int dx, dy;
-
-    if (this_->drag_bitmap) {
-        struct point point;
-        point.x=(this_->current.x-this_->pressed.x);
-        point.y=(this_->current.y-this_->pressed.y);
-        if (graphics_draw_drag(this_->gra, &point)) {
-            graphics_overlay_disable(this_->gra, 1);
-            graphics_draw_mode(this_->gra, draw_mode_end);
-            this_->moved=1;
-            this_->motion_timeout=NULL;
-            return;
-        }
-    }
-    dx=(this_->current.x-this_->last.x);
-    dy=(this_->current.y-this_->last.y);
-    if (dx || dy) {
-        struct transformation *tr;
-        this_->last=this_->current;
-        graphics_overlay_disable(this_->gra, 1);
-        tr=transform_dup(this_->trans);
-        update_transformation(tr, &this_->pressed, &this_->current);
-        graphics_draw_cancel(this_->gra, this_->displaylist);
-        graphics_displaylist_draw(this_->gra, this_->displaylist, tr, this_->layout_current, this_->graphics_flags|512);
-        transform_destroy(tr);
-        this_->moved=1;
-    }
-    this_->motion_timeout=NULL;
-    return;
-}
-
-void navit_handle_motion(struct navit *this_, struct point *p) {
-    int dx, dy;
-
-    if (this_->button_pressed && !this_->popped) {
-        dx=(p->x-this_->pressed.x);
-        dy=(p->y-this_->pressed.y);
-        if (dx < -8 || dx > 8 || dy < -8 || dy > 8) {
-            this_->moved=1;
-            if (this_->button_timeout) {
-                event_remove_timeout(this_->button_timeout);
-                this_->button_timeout=NULL;
-            }
-            this_->current=*p;
-            if (! this_->motion_timeout_callback)
-                this_->motion_timeout_callback=callback_new_1(callback_cast(navit_motion_timeout), this_);
-            if (! this_->motion_timeout)
-                this_->motion_timeout=event_add_timeout(this_->drag_bitmap?10:100, 0, this_->motion_timeout_callback);
-        }
-    }
-}
-
-static void navit_motion(void *data, struct point *p) {
-    struct navit *this=data;
-    if (!this->ignore_graphics_events)
-        navit_handle_motion(this, p);
-}
-
-static void navit_predraw(struct navit *this_) {
-    GList *l;
-    struct navit_vehicle *nv;
-    transform_copy(this_->trans, this_->trans_cursor);
-    l=this_->vehicles;
-    while (l) {
-        nv=l->data;
-        navit_vehicle_draw(this_, nv, NULL);
-        l=g_list_next(l);
-    }
-}
-
-static void navit_scale(struct navit *this_, long scale, struct point *p, int draw) {
-    struct coord c1, c2, *center;
-    if (scale < this_->zoom_min)
-        scale=this_->zoom_min;
-    if (scale > this_->zoom_max)
-        scale=this_->zoom_max;
-    if (p)
-        transform_reverse(this_->trans, p, &c1);
-    transform_set_scale(this_->trans, scale);
-    if (p) {
-        transform_reverse(this_->trans, p, &c2);
-        center = transform_center(this_->trans);
-        center->x += c1.x - c2.x;
-        center->y += c1.y - c2.y;
-    }
-    if (draw)
-        navit_draw(this_);
-}
-
-/**
- * @brief Automatically adjusts zoom level
- *
- * This function automatically adjusts the current
- * zoom level according to the current speed.
- *
- * @param this_ The navit struct
- * @param center The "immovable" point - i.e. the vehicles position if we're centering on the vehicle
- * @param speed The vehicles speed in meters per second
- * @param dir The direction into which the vehicle moves
- */
-static void navit_autozoom(struct navit *this_, struct coord *center, int speed, int draw) {
-    struct point pc;
-    int distance,w,h;
-    double new_scale;
-    long scale;
-
-    if (! this_->autozoom_active) {
-        return;
-    }
-
-    if(this_->autozoom_paused) {
-        this_->autozoom_paused--;
-        return;
-    }
-
-    distance = speed * this_->autozoom_secs;
-
-    transform_get_size(this_->trans, &w, &h);
-    transform(this_->trans, transform_get_projection(this_->trans), center, &pc, 1, 0, 0, NULL);
-    scale = transform_get_scale(this_->trans);
-
-    /* We make sure that the point we want to see is within a certain range
-     * around the vehicle. The radius of this circle is the size of the
-     * screen. This doesn't necessarily mean the point is visible because of
-     * perspective etc. Quite rough, but should be enough. */
-
-    if (w > h) {
-        new_scale = (double)distance / h * 16;
-    } else {
-        new_scale = (double)distance / w * 16;
-    }
-
-    if (abs((int)new_scale - (int)scale) < 2) {
-        return; // Smoothing
-    }
-    if (new_scale > this_->autozoom_max)
-        new_scale=this_->autozoom_max;
-    if (new_scale < this_->autozoom_min)
-        new_scale=this_->autozoom_min;
-    if (new_scale != scale)
-        navit_scale(this_, (long)new_scale, &pc, 0);
-}
-
-/**
- * Change the current zoom level, zooming closer to the ground
- *
- * @param navit The navit instance
- * @param factor The zoom factor, usually 2
- * @param p The invariant point (if set to NULL, default to center)
- * @returns nothing
- */
-void navit_zoom_in(struct navit *this_, int factor, struct point *p) {
-    long scale=transform_get_scale(this_->trans)/factor;
-    if(this_->autozoom_active) {
-        this_->autozoom_paused = 10;
-    }
-    if (scale < 1)
-        scale=1;
-    navit_scale(this_, scale, p, 1);
-}
-
-/**
- * Change the current zoom level
- *
- * @param navit The navit instance
- * @param factor The zoom factor, usually 2
- * @param p The invariant point (if set to NULL, default to center)
- * @returns nothing
- */
-void navit_zoom_out(struct navit *this_, int factor, struct point *p) {
-    long scale=transform_get_scale(this_->trans)*factor;
-    if(this_->autozoom_active) {
-        this_->autozoom_paused = 10;
-    }
-    navit_scale(this_, scale, p, 1);
-}
-
-void navit_zoom_in_cursor(struct navit *this_, int factor) {
-    struct point p;
-    if (this_->vehicle && this_->vehicle->follow_curr <= 1 && navit_get_cursor_pnt(this_, &p, 0, NULL)) {
-        navit_zoom_in(this_, factor, &p);
-        this_->vehicle->follow_curr=this_->vehicle->follow;
-    } else
-        navit_zoom_in(this_, factor, NULL);
-}
-
-void navit_zoom_out_cursor(struct navit *this_, int factor) {
-    struct point p;
-    if (this_->vehicle && this_->vehicle->follow_curr <= 1 && navit_get_cursor_pnt(this_, &p, 0, NULL)) {
-        navit_zoom_out(this_, 2, &p);
-        this_->vehicle->follow_curr=this_->vehicle->follow;
-    } else
-        navit_zoom_out(this_, 2, NULL);
-}
-static int navit_cmd_zoom_in(struct navit *this_, char *cmd, struct attr **in, struct attr ***out) {
-
-    navit_zoom_in_cursor(this_, 2);
-    return 0;
-}
-
-static int navit_cmd_zoom_out(struct navit *this_, char *cmd, struct attr **in, struct attr ***out) {
-    navit_zoom_out_cursor(this_, 2);
-    return 0;
-}
-
-
-static int navit_cmd_say(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    if (in && in[0] && ATTR_IS_STRING(in[0]->type) && in[0]->u.str)
-        navit_say(this, in[0]->u.str);
-    return 0;
-}
-
-static GHashTable *cmd_int_var_hash = NULL;
-static GHashTable *cmd_attr_var_hash = NULL;
-
-/**
- * Store key value pair for the  command system (for int typed values)
- *
- * @param navit The navit instance
- * @param function unused (needed to match command function signature)
- * @param in input attributes in[0] is the key string, in[1] is the integer value to store
- * @param out output attributes, unused
- * @returns 0
- */
-static int navit_cmd_set_int_var(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    char*key;
-    struct attr*val;
-    if(!cmd_int_var_hash) {
-        cmd_int_var_hash = g_hash_table_new(g_str_hash, g_str_equal);
-    }
-
-    if ( (in && in[0] && ATTR_IS_STRING(in[0]->type) && in[0]->u.str) &&
-            (in && in[1] && ATTR_IS_NUMERIC(in[1]->type))) {
-        val = g_new(struct attr,1);
-        attr_dup_content(in[1],val);
-        key = g_strdup(in[0]->u.str);
-        g_hash_table_insert(cmd_int_var_hash, key, val);
-    }
-    return 0;
-}
-
-
-/**
- * Store key value pair for the  command system (for attr typed values, can be used as opaque handles)
- *
- * @param navit The navit instance
- * @param function unused (needed to match command function signature)
- * @param in input attributes in[0] is the key string, in[1] is the attr* value to store
- * @param out output attributes, unused
- * @returns 0
- */
-static int navit_cmd_set_attr_var(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    char*key;
-    struct attr*val;
-    if(!cmd_attr_var_hash) {
-        cmd_attr_var_hash = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, (GDestroyNotify)attr_free);
-    }
-
-    if ( (in && in[0] && ATTR_IS_STRING(in[0]->type) && in[0]->u.str) &&
-            (in && in[1] )) {
-        val = attr_dup(in[1]);
-        key = g_strdup(in[0]->u.str);
-        g_hash_table_insert(cmd_attr_var_hash, key, val);
-    } else {
-        dbg(lvl_warning, "Wrong parameters for set_attr_var() command function");
-    }
-    return 0;
-}
-
-
-
-/**
- * command to toggle the active state of a named layer of the current layout
- *
- * @param navit The navit instance
- * @param function unused (needed to match command function signature)
- * @param in input attribute in[0] is the name of the layer
- * @param out output unused
- * @param valid unused
- * @returns 0
- */
-static int navit_cmd_toggle_layer(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    if (in && in[0] && ATTR_IS_STRING(in[0]->type) && in[0]->u.str) {
-        if(this->layout_current && this->layout_current->layers) {
-            GList* layers = this->layout_current->layers;
-            while (layers) {
-                struct layer*l=layers->data;
-                if(l && !strcmp(l->name,in[0]->u.str) ) {
-                    l->active ^= 1;
-                    navit_draw(this);
-                    return 0;
-                }
-                layers=g_list_next(layers);
-            }
-        }
-    }
-    return 0;
-}
-
-/**
- * adds an item with the current coordinate of the vehicle to a named map
- *
- * @param navit The navit instance
- * @param function unused (needed to match command function signature)
- * @param in input attribute in[0] is the name of the map
- * @param out output attribute, 0 on error or the id of the created item on success
- * @returns 0
- */
-static int navit_cmd_map_add_curr_pos(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    struct attr **list = g_new0(struct attr *,2);
-    struct attr*val = g_new0(struct attr,1);
-    struct mapset* ms;
-    struct map_selection sel;
-    const int selection_range = 10;
-    enum item_type item_type;
-    struct item *it;
-    struct map* curr_map = NULL;
-    struct coord curr_coord;
-    struct map_rect *mr;
-
-    //return invalid item on error
-    val->type   = attr_none;
-    val->u.item  = NULL;
-    list[0]     = val;
-    list[1]     = NULL;
-    *out = list;
-    if (
-        in && in[0] && ATTR_IS_STRING(in[0]->type) && in[0]->u.str && //map name
-        in[1] && ATTR_IS_STRING(in[1]->type) && in[1]->u.str    //item type
-    ) {
-
-        if(!(ms=navit_get_mapset(this))) {
-            dbg(lvl_error, "Command function map_add_curr_pos(): there is no active mapset");
-            return 0;
-        }
-
-        if((item_type = item_from_name(in[1]->u.str))==type_none) {
-            dbg(lvl_error, "Command function map_add_curr_pos(): unknown item type");
-            return 0;
-        }
-
-        curr_map = mapset_get_map_by_name(ms, in[0]->u.str);
-
-        //no map with the given name found
-        if( ! curr_map) {
-            dbg(lvl_error, "Command function map_add_curr_pos(): map not found");
-            return 0;
-        }
-
-        if(this->vehicle && this->vehicle->vehicle ) {
-            struct attr pos_attr;
-            if(vehicle_get_attr(this->vehicle->vehicle,attr_position_coord_geo,&pos_attr,NULL)) {
-                transform_from_geo(projection_mg, pos_attr.u.coord_geo, &curr_coord);
-            } else {
-                dbg(lvl_error, "Command function map_add_curr_pos(): vehicle position is not accessible");
-                return 0;
-            }
-        } else {
-            dbg(lvl_error, "Command function map_add_curr_pos(): no vehicle");
-            return 0;
-        }
-
-        sel.next=NULL;
-        sel.order=18;
-        sel.range.min=type_none;
-        sel.range.max=type_tec_common;
-        sel.u.c_rect.lu.x=curr_coord.x-selection_range;
-        sel.u.c_rect.lu.y=curr_coord.y+selection_range;
-        sel.u.c_rect.rl.x=curr_coord.x+selection_range;
-        sel.u.c_rect.rl.y=curr_coord.y-selection_range;
-
-        mr = map_rect_new(curr_map, &sel);
-        if(mr) {
-
-            it = map_rect_create_item( mr, item_type);
-            if (it) {
-                struct attr attr;
-                attr.type=attr_type_item_begin;
-                attr.u.item=it;
-                attr_dup_content(&attr,val);
-                item_coord_set(it,&curr_coord, 1, change_mode_modify);
-            }
-        }
-        map_rect_destroy(mr);
-    }
-    return 0;
-}
-
-/**
- * sets an attribute (name value pair) of a map item specified by map name and item id
- *
- * @param navit The navit instance
- * @param function unused (needed to match command function signature)
- * @param in input attribute in[0] - name of the map  ; in[1] - item  ; in[2] - attr name ; in[3] - attr value
- * @param out output attribute, 0 on error, 1 on success
- * @returns 0
- */
-static int navit_cmd_map_item_set_attr(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    if (
-        in && in[0] && ATTR_IS_STRING(in[0]->type) && in[0]->u.str  &&//map name
-        in[1] && ATTR_IS_ITEM(in[1]->type)   && in[2]->u.item &&//item
-        in[2] && ATTR_IS_STRING(in[2]->type) && in[2]->u.str && //attr_type str
-        in[3] && ATTR_IS_STRING(in[3]->type) && in[3]->u.str    //attr_value str
-    ) {
-        struct attr attr_to_set;
-        struct map* curr_map = NULL;
-        struct mapset *ms;
-        struct item *it;
-        struct map_rect *mr;
-
-        if(ATTR_IS_STRING(attr_from_name(in[2]->u.str))) {
-            attr_to_set.u.str = in[3]->u.str;
-            attr_to_set.type = attr_from_name(in[2]->u.str);
-        } else if(ATTR_IS_INT(attr_from_name(in[2]->u.str))) {
-            attr_to_set.u.num = atoi(in[3]->u.str);
-            attr_to_set.type = attr_from_name(in[2]->u.str);
-        } else if(ATTR_IS_DOUBLE(attr_from_name(in[2]->u.str))) {
-            double* val = g_new0(double,1);
-            *val = atof(in[3]->u.str);
-            attr_to_set.u.numd = val;
-            attr_to_set.type = attr_from_name(in[2]->u.str);
-        }
-
-        ms = navit_get_mapset(this);
-
-        curr_map = mapset_get_map_by_name(ms, in[0]->u.str);
-
-        if( ! curr_map) {
-            return 0;
-        }
-
-        mr=map_rect_new(curr_map,NULL);
-        it=in[1]->u.item;
-        it=map_rect_get_item_byid(mr,it->id_hi,it->id_lo);
-
-        if(it) {
-            item_attr_set(it, &attr_to_set, change_mode_modify);
-        }
-        map_rect_destroy(mr);
-    } else {
-        dbg(lvl_debug,"Error in command function item_set_attr()");
-        dbg(lvl_debug,"Command function item_set_attr(): map cond:       %d",(in[0] && ATTR_IS_STRING(in[0]->type)
-                && in[0]->u.str)?1:0);
-        dbg(lvl_debug,"Command function item_set_attr(): item cond:      %d",(in[1] && ATTR_IS_ITEM(in[1]->type))?1:0);
-        dbg(lvl_debug,"Command function item_set_attr(): attr type cond: %d",(in[2] && ATTR_IS_STRING(in[2]->type)
-                && in[2]->u.str)?1:0);
-        dbg(lvl_debug,"Command function item_set_attr(): attr val cond:  %d",(in[3] && ATTR_IS_STRING(in[3]->type)
-                && in[3]->u.str)?1:0);
-    }
-    return 0;
-}
-
-/**
- * Get attr variable given a key string for the command system (for opaque usage)
- *
- * @param navit The navit instance
- * @param function unused (needed to match command function signature)
- * @param in input attribute in[0] is the key string
- * @param out output attribute, the attr for the given key string if exists or NULL
- * @returns 0
- */
-static int navit_cmd_get_attr_var(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    struct attr **list = g_new0(struct attr *,2);
-    list[1] = NULL;
-    *out = list;
-    if(!cmd_attr_var_hash) {
-        struct attr*val = g_new0(struct attr,1);
-        val->type   = attr_type_item_begin;
-        val->u.item = NULL;
-        list[0]     = val;
-        return 0;
-    }
-    if (in && in[0] && ATTR_IS_STRING(in[0]->type) && in[0]->u.str) {
-        struct attr*ret = g_hash_table_lookup(cmd_attr_var_hash, in[0]->u.str);
-        if(ret) {
-            list[0] = attr_dup(ret);
-        } else {
-            struct attr*val = g_new0(struct attr,1);
-            val->type   = attr_type_int_begin;
-            val->u.item = NULL;
-            list[0]   = val;
-        }
-    }
-    return 0;
-}
-
-
-/**
- * Get value given a key string for the command system
- *
- * @param navit The navit instance
- * @param function unused (needed to match command function signature)
- * @param in input attribute in[0] is the key string
- * @param out output attribute, the value for the given key string if exists or 0
- * @returns 0
- */
-static int navit_cmd_get_int_var(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    struct attr **list = g_new0(struct attr *,2);
-    list[1] = NULL;
-    *out = list;
-    if(!cmd_int_var_hash) {
-        struct attr*val = g_new0(struct attr,1);
-        val->type   = attr_type_int_begin;
-        val->u.num  = 0;
-        list[0]     = val;
-        return 0;
-    }
-    if (in && in[0] && ATTR_IS_STRING(in[0]->type) && in[0]->u.str) {
-        struct attr*ret = g_hash_table_lookup(cmd_int_var_hash, in[0]->u.str);
-        if(ret) {
-            list[0] = attr_dup(ret);
-        } else {
-            struct attr*val = g_new0(struct attr,1);
-            val->type   = attr_type_int_begin;
-            val->u.num  = 0;
-            list[0]   = val;
-        }
-    }
-    return 0;
-}
-
-GList *cmd_int_var_stack = NULL;
-
-/**
- * Push an integer to the stack for the command system
- *
- * @param navit The navit instance
- * @param function unused (needed to match command function signature)
- * @param in input attribute in[0] is the integer attibute to push
- * @param out output attributes, unused
- * @returns 0
- */
-static int navit_cmd_push_int(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    if (in && in[0] && ATTR_IS_NUMERIC(in[0]->type)) {
-        struct attr*val = g_new(struct attr,1);
-        attr_dup_content(in[0],val);
-        cmd_int_var_stack = g_list_prepend(cmd_int_var_stack, val);
-    }
-    return 0;
-}
-
-/**
- * Pop an integer from the command system's integer stack
- *
- * @param navit The navit instance
- * @param function unused (needed to match command function signature)
- * @param in input attributes unused
- * @param out output attribute, the value popped if stack isn't empty or 0
- * @returns 0
- */
-static int navit_cmd_pop_int(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    struct attr **list = g_new0(struct attr *,2);
-    if(!cmd_int_var_stack) {
-        struct attr*val = g_new0(struct attr,1);
-        val->type = attr_type_int_begin;
-        val->u.num  = 0;
-        list[0]   = val;
-    } else {
-        list[0] = cmd_int_var_stack->data;
-        cmd_int_var_stack = g_list_remove_link(cmd_int_var_stack,cmd_int_var_stack);
-    }
-    list[1] = NULL;
-    *out = list;
-    return 0;
-}
-
-/**
- * Get current size of command system's integer stack
- *
- * @param navit The navit instance
- * @param function unused (needed to match command function signature)
- * @param in input attributes unused
- * @param out output attribute, the size of stack
- * @returns 0
- */
-static int navit_cmd_int_stack_size(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    struct attr **list;
-    struct attr *attr  = g_new0(struct attr,1);
-    attr->type  = attr_type_int_begin;
-    if(!cmd_int_var_stack) {
-        attr->u.num = 0;
-    } else {
-        attr->u.num = g_list_length(cmd_int_var_stack);
-    }
-    list = g_new0(struct attr *,2);
-    list[0] = attr;
-    list[1] = NULL;
-    *out = list;
-    cmd_int_var_stack = g_list_remove_link(cmd_int_var_stack,cmd_int_var_stack);
-    return 0;
-}
-
-static struct attr ** navit_get_coord(struct navit *this, struct attr **in, struct pcoord *pc) {
-    if (!in)
-        return NULL;
-    if (!in[0])
-        return NULL;
-    pc->pro = transform_get_projection(this->trans);
-    if (ATTR_IS_STRING(in[0]->type)) {
-        struct coord c;
-        coord_parse(in[0]->u.str, pc->pro, &c);
-        pc->x=c.x;
-        pc->y=c.y;
-        in++;
-    } else if (ATTR_IS_COORD(in[0]->type)) {
-        pc->x=in[0]->u.coord->x;
-        pc->y=in[0]->u.coord->y;
-        in++;
-    } else if (ATTR_IS_PCOORD(in[0]->type)) {
-        *pc=*in[0]->u.pcoord;
-        in++;
-    } else if (in[1] && in[2] && ATTR_IS_INT(in[0]->type) && ATTR_IS_INT(in[1]->type) && ATTR_IS_INT(in[2]->type)) {
-        pc->pro=in[0]->u.num;
-        pc->x=in[1]->u.num;
-        pc->y=in[2]->u.num;
-        in+=3;
-    } else if (in[1] && ATTR_IS_INT(in[0]->type) && ATTR_IS_INT(in[1]->type)) {
-        pc->x=in[0]->u.num;
-        pc->y=in[1]->u.num;
-        in+=2;
-    } else
-        return NULL;
-    return in;
-}
-
-static int navit_cmd_set_destination(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    struct pcoord pc;
-    char *description=NULL;
-    in=navit_get_coord(this, in, &pc);
-    if (!in)
-        return 0;
-    if (in[0] && ATTR_IS_STRING(in[0]->type))
-        description=in[0]->u.str;
-    navit_set_destination(this, &pc, description, 1);
-    return 0;
-}
-
-
-static int navit_cmd_route_remove_next_waypoint(struct navit *this, char *function, struct attr **in,
-        struct attr ***out) {
-    navit_remove_waypoint(this);
-    return 0;
-}
-
-
-static int navit_cmd_route_remove_last_waypoint(struct navit *this, char *function, struct attr **in,
-        struct attr ***out) {
-    navit_remove_nth_waypoint(this, navit_get_destination_count(this)-1);
-    return 0;
-}
-
-
-static int navit_cmd_set_center(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    struct pcoord pc;
-    int set_timeout=0;
-    in=navit_get_coord(this, in, &pc);
-    if (!in)
-        return 0;
-    if(in[0] && ATTR_IS_INT(in[0]->type))
-        set_timeout=in[0]->u.num!=0;
-    navit_set_center(this, &pc, set_timeout);
-    return 0;
-}
-
-
-static int navit_cmd_set_position(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    struct pcoord pc;
-    in=navit_get_coord(this, in, &pc);
-    if (!in)
-        return 0;
-    navit_set_position(this, &pc);
-    return 0;
-}
-
-
-static int navit_cmd_fmt_coordinates(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    struct attr attr;
-    attr.type=attr_type_string_begin;
-    attr.u.str="Fix me";
-    if (out) {
-        *out=attr_generic_add_attr(*out, &attr);
-    }
-    return 0;
-}
-
-/**
- * Join several string attributes into one
- *
- * @param navit The navit instance
- * @param function unused (needed to match command function signature)
- * @param in input attributes in[0] - separator, in[1..] - attributes to join
- * @param out output attribute joined attribute as string
- * @returns 0
- */
-static int navit_cmd_strjoin(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    struct attr attr;
-    gchar *ret, *sep;
-    int i;
-    attr.type=attr_type_string_begin;
-    attr.u.str=NULL;
-    if(in[0] && in[1]) {
-        sep=attr_to_text(in[0],NULL,1);
-        ret=attr_to_text(in[1],NULL,1);
-        for(i=2; in[i]; i++) {
-            gchar *in_i=attr_to_text(in[i],NULL,1);
-            gchar *r=g_strjoin(sep,ret,in_i,NULL);
-            g_free(in_i);
-            g_free(ret);
-            ret=r;
-        }
-        g_free(sep);
-        attr.u.str=ret;
-        if(out) {
-            *out=attr_generic_add_attr(*out, &attr);
-        }
-        g_free(ret);
-    }
-    return 0;
-}
-
-/**
- * Call external program
- *
- * @param navit The navit instance
- * @param function unused (needed to match command function signature)
- * @param in input attributes in[0] - name of executable, in[1..] - parameters
- * @param out output attribute unused
- * @returns 0
- */
-static int navit_cmd_spawn(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    int i,j, nparms, nvalid;
-    char ** argv=NULL;
-    struct spawn_process_info *pi;
-
-    nparms=0;
-    nvalid=0;
-    if(in) {
-        while(in[nparms]) {
-            if (in[nparms]->type!=attr_none)
-                nvalid++;
-            nparms++;
-        }
-    }
-
-    if(nvalid>0) {
-        argv=g_new(char*,nvalid+1);
-        for(i=0,j=0; in[i]; i++) {
-            if(in[i]->type!=attr_none ) {
-                argv[j++]=attr_to_text(in[i],NULL,1);
-            } else {
-                dbg(lvl_debug,"Parameter #%i is attr_none - skipping",i);
-            }
-        }
-        argv[j]=NULL;
-        pi=spawn_process(argv);
-
-        // spawn_process() testing suite - uncomment following code to test.
-        //sleep(3);
-        // example of non-blocking wait
-        //int st=spawn_process_check_status(pi,0);dbg(lvl_debug,"status %i",st);
-        // example of blocking wait
-        //st=spawn_process_check_status(pi,1);dbg(lvl_debug,"status %i",st);
-        // example of wait after process is finished and status is
-        // already tested
-        //st=spawn_process_check_status(pi,1);dbg(lvl_debug,"status %i",st);
-        // example of wait after process is finished and status is
-        // already tested - unblocked
-        //st=spawn_process_check_status(pi,0);dbg(lvl_debug,"status %i",st);
-
-        // End testing suite
-        spawn_process_info_free(pi);
-        for(i=0; argv[i]; i++)
-            g_free(argv[i]);
-        g_free(argv);
-    }
-    return 0;
-}
-
-
-static struct command_table commands[] = {
-    {"zoom_in",command_cast(navit_cmd_zoom_in)},
-    {"zoom_out",command_cast(navit_cmd_zoom_out)},
-    {"zoom_to_route",command_cast(navit_cmd_zoom_to_route)},
-    {"say",command_cast(navit_cmd_say)},
-    {"set_center",command_cast(navit_cmd_set_center)},
-    {"set_center_cursor",command_cast(navit_cmd_set_center_cursor)},
-    {"set_destination",command_cast(navit_cmd_set_destination)},
-    {"set_position",command_cast(navit_cmd_set_position)},
-    {"route_remove_next_waypoint",command_cast(navit_cmd_route_remove_next_waypoint)},
-    {"route_remove_last_waypoint",command_cast(navit_cmd_route_remove_last_waypoint)},
-    {"set_position",command_cast(navit_cmd_set_position)},
-    {"announcer_toggle",command_cast(navit_cmd_announcer_toggle)},
-    {"fmt_coordinates",command_cast(navit_cmd_fmt_coordinates)},
-    {"set_int_var",command_cast(navit_cmd_set_int_var)},
-    {"get_int_var",command_cast(navit_cmd_get_int_var)},
-    {"push_int",command_cast(navit_cmd_push_int)},
-    {"pop_int",command_cast(navit_cmd_pop_int)},
-    {"int_stack_size",command_cast(navit_cmd_int_stack_size)},
-    {"toggle_layer",command_cast(navit_cmd_toggle_layer)},
-    {"strjoin",command_cast(navit_cmd_strjoin)},
-    {"spawn",command_cast(navit_cmd_spawn)},
-    {"map_add_curr_pos",command_cast(navit_cmd_map_add_curr_pos)},
-    {"map_item_set_attr",command_cast(navit_cmd_map_item_set_attr)},
-    {"set_attr_var",command_cast(navit_cmd_set_attr_var)},
-    {"get_attr_var",command_cast(navit_cmd_get_attr_var)},
-    {"switch_layout_day_night",command_cast(navit_cmd_switch_layout_day_night)},
-};
-
-void navit_command_add_table(struct navit*this_, struct command_table *commands, int count) {
-    command_add_table(this_->attr_cbl, commands, count, this_);
-}
-
-struct navit *
-navit_new(struct attr *parent, struct attr **attrs) {
-    struct navit *this_=g_new0(struct navit, 1);
-    struct pcoord center;
-    struct coord co;
-    struct coord_geo g;
-    enum projection pro=projection_mg;
-    int zoom = 256;
-    g.lat=53.13;
-    g.lng=11.70;
-
-    this_->func=&navit_func;
-    navit_object_ref((struct navit_object *)this_);
-    this_->attrs=attr_list_dup(attrs);
-    this_->self.type=attr_navit;
-    this_->self.u.navit=this_;
-    this_->attr_cbl=callback_list_new();
-
-    this_->orientation=-1;
-    this_->tracking_flag=1;
-    this_->recentdest_count=10;
-    this_->osd_configuration=-1;
-    this_->default_layout_name=NULL;
-
-    this_->center_timeout = 10;
-    this_->use_mousewheel = 1;
-    this_->autozoom_secs = 10;
-    this_->autozoom_min = 7;
-    this_->autozoom_active = 0;
-    this_->autozoom_paused = 0;
-    this_->zoom_min = 1;
-    this_->zoom_max = 2097152;
-    this_->autozoom_max = this_->zoom_max;
-    this_->follow_cursor = 1;
-    this_->radius = 30;
-    this_->border = 16;
-    this_->auto_switch = TRUE;
-
-    transform_from_geo(pro, &g, &co);
-    center.x=co.x;
-    center.y=co.y;
-    center.pro = pro;
-    this_->trans = transform_new(&center, zoom, (this_->orientation != -1) ? this_->orientation : 0);
-    this_->trans_cursor = transform_new(&center, zoom, (this_->orientation != -1) ? this_->orientation : 0);
-
-    this_->bookmarks=bookmarks_new(&this_->self, NULL, this_->trans);
-
-    this_->prevTs=0;
-
-    for (; *attrs; attrs++) {
-        navit_set_attr_do(this_, *attrs, 1);
-    }
-    this_->displaylist=graphics_displaylist_new();
-    command_add_table(this_->attr_cbl, commands, sizeof(commands)/sizeof(struct command_table), this_);
-
-    this_->messages = messagelist_new(attrs);
-
-    dbg(lvl_debug,"return %p",this_);
-
-    return this_;
-}
-
-static int navit_set_gui(struct navit *this_, struct gui *gui) {
-    if (this_->gui)
-        return 0;
-    this_->gui=gui;
-    if (gui_has_main_loop(this_->gui)) {
-        if (! main_loop_gui) {
-            main_loop_gui=this_->gui;
-        } else {
-            dbg(lvl_error,"gui with main loop already active, ignoring this instance");
-            return 0;
-        }
-    }
-    return 1;
-}
-
-void navit_add_message(struct navit *this_, const char *message) {
-    message_new(this_->messages, message);
-}
-
-struct message
-*navit_get_messages(struct navit *this_) {
-    return message_get(this_->messages);
-}
-
-static int navit_set_graphics(struct navit *this_, struct graphics *gra) {
-    if (this_->gra)
-        return 0;
-    this_->gra=gra;
-    this_->resize_callback=callback_new_attr_1(callback_cast(navit_resize), attr_resize, this_);
-    graphics_add_callback(gra, this_->resize_callback);
-    this_->button_callback=callback_new_attr_1(callback_cast(navit_button), attr_button, this_);
-    graphics_add_callback(gra, this_->button_callback);
-    this_->motion_callback=callback_new_attr_1(callback_cast(navit_motion), attr_motion, this_);
-    graphics_add_callback(gra, this_->motion_callback);
-    this_->predraw_callback=callback_new_attr_1(callback_cast(navit_predraw), attr_predraw, this_);
-    graphics_add_callback(gra, this_->predraw_callback);
-    return 1;
-}
-
-struct graphics *
-navit_get_graphics(struct navit *this_) {
-    return this_->gra;
-}
-
-struct vehicleprofile *
-navit_get_vehicleprofile(struct navit *this_) {
-    return this_->vehicleprofile;
-}
-
-GList *navit_get_vehicleprofiles(struct navit *this_) {
-    return this_->vehicleprofiles;
-}
-
-static void navit_projection_set(struct navit *this_, enum projection pro, int draw) {
-    struct coord_geo g;
-    struct coord *c;
-
-    c=transform_center(this_->trans);
-    transform_to_geo(transform_get_projection(this_->trans), c, &g);
-    transform_set_projection(this_->trans, pro);
-    transform_from_geo(pro, &g, c);
-    if (draw)
-        navit_draw(this_);
-}
-
-static void navit_mark_navigation_stopped(char *former_destination_file) {
-    FILE *f;
-    f=fopen(former_destination_file, "a");
-    if (f) {
-        fprintf(f,"%s", TEXTFILE_COMMENT_NAVI_STOPPED);
-        fclose(f);
-    } else {
-        dbg(lvl_error, "Error setting mark in destination file %s: %s", former_destination_file, strerror(errno));
-    }
-}
-
-
-/**
- * Start or add a given set of coordinates for route computing
- *
- * @param navit The navit instance
- * @param c The coordinate to start routing to
- * @param description A label which allows the user to later identify this destination in the former destinations selection
- * @param async Set to 1 to do route calculation asynchronously
- * @return nothing
- */
-void navit_set_destination(struct navit *this_, struct pcoord *c, const char *description, int async) {
-    char *destination_file;
-    destination_file = bookmarks_get_destination_file(TRUE);
-    if (c) {
-        this_->destination=*c;
-        this_->destination_valid=1;
-
-        dbg(lvl_debug, "c=(%i,%i)", c->x,c->y);
-        bookmarks_append_destinations(this_->former_destination, destination_file, c, 1, type_former_destination, description,
-                                      this_->recentdest_count);
-    } else {
-        this_->destination_valid=0;
-        bookmarks_append_destinations(this_->former_destination, destination_file, NULL, 0, type_former_destination, NULL,
-                                      this_->recentdest_count);
-        navit_mark_navigation_stopped(destination_file);
-    }
-    g_free(destination_file);
-
-    if (this_->route) {
-        struct attr attr;
-        int dstcount;
-        struct pcoord *pc;
-
-        navit_get_attr(this_, attr_waypoints_flag, &attr, NULL);
-        if (this_->waypoints_flag==0 || route_get_destination_count(this_->route)==0) {
-            route_set_destination(this_->route, c, async);
-        } else {
-            route_append_destination(this_->route, c, async);
-        }
-
-        dstcount=route_get_destination_count(this_->route);
-        if(dstcount>0) {
-            destination_file = bookmarks_get_destination_file(TRUE);
-            pc=g_new(struct pcoord,dstcount);
-            route_get_destinations(this_->route,pc,dstcount);
-            bookmarks_append_destinations(this_->former_destination, destination_file, pc, dstcount, type_former_itinerary,
-                                          description, this_->recentdest_count);
-            g_free(pc);
-            g_free(destination_file);
-        }
-    }
-
-    callback_list_call_attr_0(this_->attr_cbl, attr_destination);
-
-    if (this_->route && this_->ready == 3 && !(this_->flags & 4))
-        navit_draw(this_);
-}
-
-/**
- * Add destination description to the recent dest file. Doesn't start routing.
- *
- * @param navit The navit instance
- * @param c The coordinate to start routing to
- * @param description A label which allows the user to later identify this destination in the former destinations selection
- * @returns nothing
- */
-void navit_add_destination_description(struct navit *this_, struct pcoord *c, const char *description) {
-    char *destination_file;
-    if (c) {
-        destination_file = bookmarks_get_destination_file(TRUE);
-        bookmarks_append_destinations(this_->former_destination, destination_file, c, 1, type_former_destination, description,
-                                      this_->recentdest_count);
-        g_free(destination_file);
-    }
-}
-
-
-/**
- * Start the route computing to a given set of coordinates including waypoints
- *
- * @param this_ The navit instance
- * @param c The coordinate to start routing to
- * @param description A label which allows the user to later identify this destination in the former destinations selection
- * @param async If routing should be done asynchronously
- * @returns nothing
- */
-void navit_set_destinations(struct navit *this_, struct pcoord *c, int count, const char *description, int async) {
-    char *destination_file;
-    if (c && count) {
-        this_->destination=c[count-1];
-        this_->destination_valid=1;
-
-        destination_file = bookmarks_get_destination_file(TRUE);
-        bookmarks_append_destinations(this_->former_destination, destination_file, c, count, type_former_itinerary, description,
-                                      this_->recentdest_count);
-        g_free(destination_file);
-    } else
-        this_->destination_valid=0;
-    if (this_->route)
-        route_set_destinations(this_->route, c, count, async);
-
-    callback_list_call_attr_0(this_->attr_cbl, attr_destination);
-    if (this_->route && this_->ready == 3)
-        navit_draw(this_);
-}
-
-/**
- * @brief Retrieves destinations from the route
- *
- * Prior to calling this method, you may want to retrieve the number of destinations by calling
- * {@link navit_get_destination_count(struct navit *)} and assigning a buffer of sufficient capacity.
- *
- * If the return value equals `count`, the buffer was either just large enough or too small to hold the
- * entire list of destinations; there is no way to tell from the result which is the case.
- *
- * If the Navit instance does not have a route, the result is 0.
- *
- * @param this_ The Navit instance
- * @param pc Pointer to an array of projected coordinates which will receive the destination coordinates
- * @param count Capacity of `pc`
- * @return The number of destinations stored in `pc`, never greater than `count`
- */
-int navit_get_destinations(struct navit *this_, struct pcoord *pc, int count) {
-    if(!this_->route)
-        return 0;
-    return route_get_destinations(this_->route, pc, count);
-
-}
-
-/**
- * @brief Get the destinations count for the route
- *
- * @param this The Navit instance
- * @return destination count for the route, or 0 if the Navit instance has no route
- */
-int navit_get_destination_count(struct navit *this_) {
-    if(!this_->route)
-        return 0;
-    return route_get_destination_count(this_->route);
-}
-
-char* navit_get_destination_description(struct navit *this_, int n) {
-    if(!this_->route)
-        return NULL;
-    return route_get_destination_description(this_->route, n);
-}
-
-void navit_remove_nth_waypoint(struct navit *this_, int n) {
-    if(!this_->route)
-        return;
-    if (route_get_destination_count(this_->route)>1) {
-        route_remove_nth_waypoint(this_->route, n);
-    } else {
-        navit_set_destination(this_, NULL, NULL, 0);
-    }
-}
-
-void navit_remove_waypoint(struct navit *this_) {
-    if(!this_->route)
-        return;
-    if (route_get_destination_count(this_->route)>1) {
-        route_remove_waypoint(this_->route);
-    } else {
-        navit_set_destination(this_, NULL, NULL, 0);
-    }
-}
-
-/**
- * @brief Checks if a route is calculated
- *
- * This function checks if a route is calculated.
- *
- * @param this_ The navit struct whose route should be checked.
- * @return True if the route is set, false otherwise.
- */
-int navit_check_route(struct navit *this_) {
-    if (this_->route) {
-        return route_get_path_set(this_->route);
-    }
-
-    return 0;
-}
-
-static int navit_former_destinations_active(struct navit *this_) {
-    char *destination_file_name = bookmarks_get_destination_file(FALSE);
-    FILE *destination_file;
-    int active=0;
-    char lastline[100];
-    destination_file=fopen(destination_file_name,"r");
-    if (destination_file) {
-        while(fgets(lastline, sizeof(lastline), destination_file));
-        fclose(destination_file);
-        if ((lastline != NULL) && (strcmp(lastline, TEXTFILE_COMMENT_NAVI_STOPPED))) {
-            active=1;
-        }
-    }
-    g_free(destination_file_name);
-    return active;
-}
-
-
-struct map* read_former_destinations_from_file() {
-    struct attr type, data, no_warn, flags, *attrs[5];
-    char *destination_file = bookmarks_get_destination_file(FALSE);
-    struct map *m;
-
-    type.type=attr_type;
-    type.u.str="textfile";
-
-    data.type=attr_data;
-    data.u.str=destination_file;
-
-    no_warn.type=attr_no_warning_if_map_file_missing;
-    no_warn.u.num=1;
-
-    flags.type=attr_flags;
-    flags.u.num=1;
-
-    attrs[0]=&type;
-    attrs[1]=&data;
-    attrs[2]=&flags;
-    attrs[3]=&no_warn;
-    attrs[4]=NULL;
-
-    m=map_new(NULL, attrs);
-    g_free(destination_file);
-    return m;
-}
-
-static void navit_add_former_destinations_from_file(struct navit *this_) {
-    struct item *item;
-    int i,valid=0,count=0,maxcount=1;
-    struct coord *c=g_new(struct coord, maxcount);
-    struct pcoord *pc;
-    struct map_rect *mr;
-
-    this_->former_destination=read_former_destinations_from_file();
-    if (!this_->route || !navit_former_destinations_active(this_) || !this_->vehicle)
-        return;
-    mr=map_rect_new(this_->former_destination, NULL);
-    while ((item=map_rect_get_item(mr))) {
-        if (item->type == type_former_itinerary || item->type == type_former_itinerary_part) {
-            count=item_coord_get(item, c, maxcount);
-            while(count==maxcount) {
-                maxcount*=2;
-                c=g_realloc(c, sizeof(struct coord)*maxcount);
-                count+=item_coord_get(item, &c[count], maxcount-count);
-            }
-            if(count)
-                valid=1;
-        }
-    }
-    map_rect_destroy(mr);
-    if (valid && count > 0) {
-        pc=g_new(struct pcoord, count);
-        for (i = 0 ; i < count ; i++) {
-            pc[i].pro=map_projection(this_->former_destination);
-            pc[i].x=c[i].x;
-            pc[i].y=c[i].y;
-        }
-        if (count == 1)
-            route_set_destination(this_->route, &pc[0], 1);
-        else
-            route_set_destinations(this_->route, pc, count, 1);
-        this_->destination=pc[count-1];
-        this_->destination_valid=1;
-        g_free(pc);
-    }
-    g_free(c);
-}
-
-
-void navit_textfile_debug_log(struct navit *this_, const char *fmt, ...) {
-    va_list ap;
-    char *str1,*str2;
-    va_start(ap, fmt);
-    if (this_->textfile_debug_log && this_->vehicle) {
-        str1=g_strdup_vprintf(fmt, ap);
-        str2=g_strdup_printf("0x%x 0x%x%s%s\n", this_->vehicle->coord.x, this_->vehicle->coord.y, strlen(str1) ? " " : "",
-                             str1);
-        log_write(this_->textfile_debug_log, str2, strlen(str2), 0);
-        g_free(str2);
-        g_free(str1);
-    }
-    va_end(ap);
-}
-
-void navit_textfile_debug_log_at(struct navit *this_, struct pcoord *pc, const char *fmt, ...) {
-    va_list ap;
-    char *str1,*str2;
-    va_start(ap, fmt);
-    if (this_->textfile_debug_log && this_->vehicle) {
-        str1=g_strdup_vprintf(fmt, ap);
-        str2=g_strdup_printf("0x%x 0x%x%s%s\n", pc->x, pc->y, strlen(str1) ? " " : "", str1);
-        log_write(this_->textfile_debug_log, str2, strlen(str2), 0);
-        g_free(str2);
-        g_free(str1);
-    }
-    va_end(ap);
-}
-
-void navit_say(struct navit *this_, const char *text) {
-    struct attr attr;
-    if(this_->speech) {
-        if (!speech_get_attr(this_->speech, attr_active, &attr, NULL))
-            attr.u.num = 1;
-        dbg(lvl_debug, "this_.speech->active %ld", attr.u.num);
-        if(attr.u.num)
-            speech_say(this_->speech, text);
-    }
-}
-
-/**
- * @brief Toggles the navigation announcer for navit
- * @param this_ The navit object
- */
-static int navit_cmd_announcer_toggle(struct navit *this_, char *function, struct attr **in, struct attr ***out) {
-    struct attr attr, speechattr;
-
-    // search for the speech attribute
-    if(!navit_get_attr(this_, attr_speech, &speechattr, NULL))
-        return 0;
-    // find out if the corresponding attribute attr_active has been set
-    if(speech_get_attr(speechattr.u.speech, attr_active, &attr, NULL)) {
-        // flip it then...
-        attr.u.num = !attr.u.num;
-    } else {
-        // otherwise disable it because voice is enabled by default
-        attr.type = attr_active;
-        attr.u.num = 0;
-    }
-
-    // apply the new state
-    if(!speech_set_attr(speechattr.u.speech, &attr))
-        return 0;
-
-    // announce that the speech attribute has changed
-    callback_list_call_attr_1(this_->attr_cbl, attr_speech, this_);
-    return 0;
-}
-
-void navit_speak(struct navit *this_) {
-    struct navigation *nav=this_->navigation;
-    struct map *map=NULL;
-    struct map_rect *mr=NULL;
-    struct item *item;
-    struct attr attr;
-
-    if (!speech_get_attr(this_->speech, attr_active, &attr, NULL))
-        attr.u.num = 1;
-    dbg(lvl_debug, "this_.speech->active %ld", attr.u.num);
-    if(!attr.u.num)
-        return;
-
-    if (nav)
-        map=navigation_get_map(nav);
-    if (map)
-        mr=map_rect_new(map, NULL);
-    if (mr) {
-        while ((item=map_rect_get_item(mr)) && (item->type == type_nav_position || item->type == type_nav_none));
-        if (item && item_attr_get(item, attr_navigation_speech, &attr)) {
-            if (*attr.u.str != '\0') {
-                speech_say(this_->speech, attr.u.str);
-                navit_add_message(this_, attr.u.str);
-            }
-            navit_textfile_debug_log(this_, "type=announcement label=\"%s\"", attr.u.str);
-        }
-        map_rect_destroy(mr);
-    }
-}
-
-static void navit_window_roadbook_update(struct navit *this_) {
-    struct navigation *nav=this_->navigation;
-    struct map *map=NULL;
-    struct map_rect *mr=NULL;
-    struct item *item;
-    struct attr attr;
-    struct param_list param[5];
-    int secs;
-
-    /* Respect the Imperial attribute as we enlighten the user. */
-    int imperial = FALSE;  /* default to using metric measures. */
-    if (navit_get_attr(this_, attr_imperial, &attr, NULL))
-        imperial=attr.u.num;
-
-    dbg(lvl_debug,"enter");
-    datawindow_mode(this_->roadbook_window, 1);
-    if (nav)
-        map=navigation_get_map(nav);
-    if (map)
-        mr=map_rect_new(map, NULL);
-    dbg(lvl_debug,"nav=%p map=%p mr=%p", nav, map, mr);
-    if (mr) {
-        dbg(lvl_debug,"while loop");
-        while ((item=map_rect_get_item(mr))) {
-            dbg(lvl_debug,"item=%p", item);
-            attr.u.str=NULL;
-            if (item->type != type_nav_position) {
-                item_attr_get(item, attr_navigation_long, &attr);
-                if (attr.u.str == NULL) {
-                    continue;
-                }
-                dbg(lvl_info, "Command='%s'", attr.u.str);
-                param[0].value=g_strdup(attr.u.str);
-            } else
-                param[0].value=_("Position");
-            param[0].name=_("Command");
-
-            /* Distance to the next maneuver. */
-            item_attr_get(item, attr_length, &attr);
-            dbg(lvl_info, "Length=%ld in meters", attr.u.num);
-            param[1].name=_("Length");
-
-            if ( attr.u.num >= 2000 ) {
-                param[1].value=g_strdup_printf("%5.1f %s",
-                                               imperial == TRUE ? (float)attr.u.num * METERS_TO_MILES : (float)attr.u.num / 1000,
-                                               imperial == TRUE ? _("mi") : _("km")
-                                              );
-            } else {
-                param[1].value=g_strdup_printf("%7.0f %s",
-                                               imperial == TRUE ? (attr.u.num * FEET_PER_METER) : attr.u.num,
-                                               imperial == TRUE ? _("feet") : _("m")
-                                              );
-            }
-
-            /* Time to next maneuver. */
-            item_attr_get(item, attr_time, &attr);
-            dbg(lvl_info, "Time=%ld", attr.u.num);
-            secs=attr.u.num/10;
-            param[2].name=_("Time");
-            if ( secs >= 3600 ) {
-                param[2].value=g_strdup_printf("%d:%02d:%02d",secs / 60, ( secs / 60 ) % 60, secs % 60);
-            } else {
-                param[2].value=g_strdup_printf("%d:%02d",secs / 60, secs % 60);
-            }
-
-            /* Distance from next maneuver to destination. */
-            item_attr_get(item, attr_destination_length, &attr);
-            dbg(lvl_info, "Destlength=%ld in meters.", attr.u.num);
-            param[3].name=_("Destination Length");
-            if ( attr.u.num >= 2000 ) {
-                param[3].value=g_strdup_printf("%5.1f %s",
-                                               imperial == TRUE ? (float)attr.u.num * METERS_TO_MILES : (float)attr.u.num / 1000,
-                                               imperial == TRUE ? _("mi") : _("km")
-                                              );
-            } else {
-                param[3].value=g_strdup_printf("%7.0f %s",
-                                               imperial == TRUE ? (attr.u.num * FEET_PER_METER) : attr.u.num,
-                                               imperial == TRUE ? _("feet") : _("m")
-                                              );
-            }
-
-            /* Time from next maneuver to destination. */
-            item_attr_get(item, attr_destination_time, &attr);
-            dbg(lvl_info, "Desttime=%ld", attr.u.num);
-            secs=attr.u.num/10;
-            param[4].name=_("Destination Time");
-            if ( secs >= 3600 ) {
-                param[4].value=g_strdup_printf("%d:%02d:%02d",secs / 3600, (secs / 60 ) % 60, secs % 60);
-            } else {
-                param[4].value=g_strdup_printf("%d:%02d",secs / 60, secs % 60);
-            }
-            datawindow_add(this_->roadbook_window, param, 5);
-        }
-        map_rect_destroy(mr);
-    }
-    datawindow_mode(this_->roadbook_window, 0);
-}
-
-void navit_window_roadbook_destroy(struct navit *this_) {
-    dbg(lvl_debug, "enter");
-    navigation_unregister_callback(this_->navigation, attr_navigation_long, this_->roadbook_callback);
-    callback_destroy(this_->roadbook_callback);
-    this_->roadbook_window=NULL;
-    this_->roadbook_callback=NULL;
-}
-void navit_window_roadbook_new(struct navit *this_) {
-    if (!this_->gui || this_->roadbook_callback || this_->roadbook_window) {
-        return;
-    }
-
-    this_->roadbook_callback=callback_new_1(callback_cast(navit_window_roadbook_update), this_);
-    navigation_register_callback(this_->navigation, attr_navigation_long, this_->roadbook_callback);
-    this_->roadbook_window=gui_datawindow_new(this_->gui, _("Roadbook"), NULL,
-                           callback_new_1(callback_cast(navit_window_roadbook_destroy), this_));
-    navit_window_roadbook_update(this_);
-}
-
-int navit_init(struct navit *this_) {
-    struct mapset *ms;
-    struct map *map;
-    int callback;
-    char *center_file;
-    struct attr_iter *iter;
-    struct attr *attr;
-    struct traffic * traffic;
-
-    dbg(lvl_info,"enter gui %p graphics %p",this_->gui,this_->gra);
-
-    if (!this_->gui && !(this_->flags & 2)) {
-        dbg(lvl_error,"FATAL: No GUI available.");
-        exit(1);
-    }
-    if (!this_->gra && !(this_->flags & 1)) {
-        dbg(lvl_error,"FATAL: No graphics subsystem available.");
-        exit(1);
-    }
-    dbg(lvl_info,"Connecting gui to graphics");
-    if (this_->gui && this_->gra && gui_set_graphics(this_->gui, this_->gra)) {
-        struct attr attr_type_gui, attr_type_graphics;
-        gui_get_attr(this_->gui, attr_type, &attr_type_gui, NULL);
-        graphics_get_attr(this_->gra, attr_type, &attr_type_graphics, NULL);
-        dbg(lvl_error,"FATAL: Failed to connect graphics '%s' to gui '%s'", attr_type_graphics.u.str, attr_type_gui.u.str);
-        dbg(lvl_error,"Please see http://wiki.navit-project.org/index.php/Failed_to_connect_graphics_to_gui "
-            "for explanations and solutions\n");
-        exit(1);
-    }
-    if (this_->speech && this_->navigation) {
-        struct attr speech;
-        speech.type=attr_speech;
-        speech.u.speech=this_->speech;
-        navigation_set_attr(this_->navigation, &speech);
-    }
-    dbg(lvl_info,"Initializing graphics");
-    dbg(lvl_info,"Setting Vehicle");
-    navit_set_vehicle(this_, this_->vehicle);
-    dbg(lvl_info,"Adding dynamic maps to mapset %p",this_->mapsets);
-    if (this_->mapsets) {
-        struct mapset_handle *msh;
-        ms=this_->mapsets->data;
-        this_->progress_cb=callback_new_attr_1(callback_cast(navit_map_progress), attr_progress, this_);
-        msh=mapset_open(ms);
-        while (msh && (map=mapset_next(msh, 0))) {
-            //pass new callback instance for each map in the mapset to make map callback list destruction work correctly
-            struct callback *pcb = callback_new_attr_1(callback_cast(navit_map_progress), attr_progress, this_);
-            map_add_callback(map, pcb);
-        }
-        mapset_close(msh);
-
-        if (this_->route) {
-            if ((map=route_get_map(this_->route))) {
-                struct attr map_a;
-                map_a.type=attr_map;
-                map_a.u.map=map;
-                mapset_add_attr(ms, &map_a);
-            }
-            if ((map=route_get_graph_map(this_->route))) {
-                struct attr map_a,active;
-                map_a.type=attr_map;
-                map_a.u.map=map;
-                active.type=attr_active;
-                active.u.num=0;
-                mapset_add_attr(ms, &map_a);
-                map_set_attr(map, &active);
-            }
-            route_set_mapset(this_->route, ms);
-            route_set_projection(this_->route, transform_get_projection(this_->trans));
-        }
-        if (this_->tracking) {
-            tracking_set_mapset(this_->tracking, ms);
-            if (this_->route)
-                tracking_set_route(this_->tracking, this_->route);
-        }
-
-        attr = g_new0(struct attr, 1);
-        iter = navit_attr_iter_new(NULL);
-        map = NULL;
-        while (navit_get_attr(this_, attr_traffic, attr, iter)) {
-            traffic = (struct traffic *) attr->u.navit_object;
-            traffic_set_mapset(traffic, ms);
-            if (this_->route)
-                traffic_set_route(traffic, this_->route);
-            /* add the first map found */
-            if (!map && (map = traffic_get_map(traffic))) {
-                struct attr map_a;
-                map_a.type = attr_map;
-                map_a.u.map = map;
-                mapset_add_attr(ms, &map_a);
-            }
-        }
-        navit_attr_iter_destroy(iter);
-        g_free(attr);
-
-        if (this_->navigation) {
-            if ((map=navigation_get_map(this_->navigation))) {
-                struct attr map_a,active;
-                map_a.type=attr_map;
-                map_a.u.map=map;
-                active.type=attr_active;
-                active.u.num=0;
-                mapset_add_attr(ms, &map_a);
-                map_set_attr(map, &active);
-            }
-        }
-        if (this_->tracking) {
-            if ((map=tracking_get_map(this_->tracking))) {
-                struct attr map_a,active;
-                map_a.type=attr_map;
-                map_a.u.map=map;
-                active.type=attr_active;
-                active.u.num=0;
-                mapset_add_attr(ms, &map_a);
-                map_set_attr(map, &active);
-            }
-        }
-        navit_add_former_destinations_from_file(this_);
-    } else {
-        dbg(lvl_error, "FATAL: No mapset available. Please add a (valid) mapset to your configuration.");
-        exit(1);
-    }
-    if (this_->route) {
-        struct attr callback;
-        this_->route_cb=callback_new_attr_1(callback_cast(navit_redraw_route), attr_route_status, this_);
-        callback.type=attr_callback;
-        callback.u.callback=this_->route_cb;
-        route_add_attr(this_->route, &callback);
-    }
-    if (this_->navigation) {
-        if (this_->speech) {
-            this_->nav_speech_cb=callback_new_1(callback_cast(navit_speak), this_);
-            navigation_register_callback(this_->navigation, attr_navigation_speech, this_->nav_speech_cb);
-        }
-        if (this_->route)
-            navigation_set_route(this_->navigation, this_->route);
-    }
-    dbg(lvl_info,"Setting Center");
-    center_file = bookmarks_get_center_file(FALSE);
-    bookmarks_set_center_from_file(this_->bookmarks, center_file);
-    g_free(center_file);
-    global_navit=this_;
-
-    messagelist_init(this_->messages);
-
-    navit_set_cursors(this_);
-
-    callback_list_call_attr_1(this_->attr_cbl, attr_navit, this_);
-    callback=(this_->ready == 2);
-    this_->ready|=1;
-    dbg(lvl_info,"ready=%d",this_->ready);
-    if (this_->ready == 3)
-        navit_draw_async(this_, 1);
-    if (callback)
-        callback_list_call_attr_1(this_->attr_cbl, attr_graphics_ready, this_);
-    return 0;
-}
-
-void navit_zoom_to_rect(struct navit *this_, struct coord_rect *r) {
-    struct coord c;
-    int w,h,scale=16;
-
-    c.x=(r->rl.x+r->lu.x)/2;
-    c.y=(r->rl.y+r->lu.y)/2;
-    transform_set_center(this_->trans, &c);
-    transform_get_size(this_->trans, &w, &h);
-    dbg(lvl_debug,"center 0x%x,0x%x w %d h %d",c.x,c.y,w,h);
-    dbg(lvl_debug,"%x,%x-%x,%x", r->lu.x,r->lu.y,r->rl.x,r->rl.y);
-    while (scale < 1<<20) {
-        struct point p1,p2;
-        transform_set_scale(this_->trans, scale);
-        transform_setup_source_rect(this_->trans);
-        transform(this_->trans, transform_get_projection(this_->trans), &r->lu, &p1, 1, 0, 0, NULL);
-        transform(this_->trans, transform_get_projection(this_->trans), &r->rl, &p2, 1, 0, 0, NULL);
-        dbg(lvl_debug,"%d,%d-%d,%d",p1.x,p1.y,p2.x,p2.y);
-        if (p1.x < 0 || p2.x < 0 || p1.x > w || p2.x > w ||
-                p1.y < 0 || p2.y < 0 || p1.y > h || p2.y > h)
-            scale*=2;
-        else
-            break;
-
-    }
-    dbg(lvl_debug,"scale=%d (0x%x) of %d (0x%x)",scale,scale,1<<20,1<<20);
-    if (this_->ready == 3)
-        navit_draw_async(this_,0);
-}
-
-void navit_zoom_to_route(struct navit *this_, int orientation) {
-    struct map *map;
-    struct map_rect *mr=NULL;
-    struct item *item;
-    struct coord c;
-    struct coord_rect r;
-    int count=0;
-    if (! this_->route)
-        return;
-    dbg(lvl_debug,"enter");
-    map=route_get_map(this_->route);
-    dbg(lvl_debug,"map=%p",map);
-    if (map)
-        mr=map_rect_new(map, NULL);
-    dbg(lvl_debug,"mr=%p",mr);
-    if (mr) {
-        while ((item=map_rect_get_item(mr))) {
-            dbg(lvl_debug,"item=%s", item_to_name(item->type));
-            while (item_coord_get(item, &c, 1)) {
-                dbg(lvl_debug,"coord");
-                if (!count)
-                    r.lu=r.rl=c;
-                else
-                    coord_rect_extend(&r, &c);
-                count++;
-            }
-        }
-        map_rect_destroy(mr);
-    }
-    if (! count)
-        return;
-    if (orientation != -1)
-        transform_set_yaw(this_->trans, orientation);
-    navit_zoom_to_rect(this_, &r);
-}
-
-static int navit_cmd_zoom_to_route(struct navit *this, char *function, struct attr **in, struct attr ***out) {
-    navit_zoom_to_route(this, 0);
-    return 0;
-}
-
-
-/**
- * Change the current zoom level
- *
- * @param navit The navit instance
- * @param center The point where to center the map, including its projection
- * @returns nothing
- */
-void navit_set_center(struct navit *this_, struct pcoord *center, int set_timeout) {
-    struct coord *c=transform_center(this_->trans);
-    struct coord c1,c2;
-    enum projection pro = transform_get_projection(this_->trans);
-    if (pro != center->pro) {
-        c1.x = center->x;
-        c1.y = center->y;
-        transform_from_to(&c1, center->pro, &c2, pro);
-    } else {
-        c2.x = center->x;
-        c2.y = center->y;
-    }
-    *c=c2;
-    if (set_timeout)
-        navit_set_timeout(this_);
-    if (this_->ready == 3)
-        navit_draw(this_);
-}
-
-static void navit_set_center_coord_screen(struct navit *this_, struct coord *c, struct point *p, int set_timeout) {
-    int width, height;
-    struct point po;
-    transform_set_center(this_->trans, c);
-    transform_get_size(this_->trans, &width, &height);
-    po.x=width/2;
-    po.y=height/2;
-    update_transformation(this_->trans, &po, p);
-    if (set_timeout)
-        navit_set_timeout(this_);
-}
-
-/**
- * Links all vehicles to a cursor depending on the current profile.
- *
- * @param this_ A navit instance
- * @author Ralph Sennhauser (10/2009)
- */
-static void navit_set_cursors(struct navit *this_) {
-    struct attr name;
-    struct navit_vehicle *nv;
-    struct cursor *c;
-    GList *v;
-
-    v=g_list_first(this_->vehicles); // GList of navit_vehicles
-    while (v) {
-        nv=v->data;
-        if (vehicle_get_attr(nv->vehicle, attr_cursorname, &name, NULL)) {
-            if (!strcmp(name.u.str,"none"))
-                c=NULL;
-            else
-                c=layout_get_cursor(this_->layout_current, name.u.str);
-        } else
-            c=layout_get_cursor(this_->layout_current, "default");
-        vehicle_set_cursor(nv->vehicle, c, 0);
-        v=g_list_next(v);
-    }
-    return;
-}
-
-
-/**
- * @brief Calculates the position of the cursor on the screen.
- *
- * This method considers padding if supported by the graphics plugin. In that case, the inner rectangle
- * (i.e. screen size minus padding) will be used to center the cursor and to determine cursor offset (as
- * specified in `this_->radius`).
- *
- * @param this_ The navit object
- * @param p Receives the screen coordinates for the cursor
- * @param keep_orientation Whether to maintain the current map orientation. If false, the map will be
- * rotated so that the bearing of the vehicle is up.
- * @param dir Receives the new map orientation as requested by `screen_orientation` (can be `NULL`)
- *
- * @return Always 1
- */
-static int navit_get_cursor_pnt(struct navit *this_, struct point *p, int keep_orientation, int *dir) {
-    int width, height;
-    struct navit_vehicle *nv=this_->vehicle;
-    struct padding *padding = NULL;
-
-    float offset=this_->radius;      // Cursor offset from the center of the screen (percent).
-#if 0 /* Better improve track.c to get that issue resolved or make it configurable with being off the default, the jumping back to the center is a bit annoying */
-    float min_offset = 0.;      // Percent offset at min_offset_speed.
-    float max_offset = 30.;     // Percent offset at max_offset_speed.
-    int min_offset_speed = 2;   // Speed in km/h
-    int max_offset_speed = 50;  // Speed in km/h
-    // Calculate cursor offset from the center of the screen, upon speed.
-    if (nv->speed <= min_offset_speed) {
-        offset = min_offset;
-    } else if (nv->speed > max_offset_speed) {
-        offset = max_offset;
-    } else {
-        offset = (max_offset - min_offset) / (max_offset_speed - min_offset_speed) * (nv->speed - min_offset_speed);
-    }
-#endif
-
-    if (this_->gra) {
-        padding = graphics_get_data(this_->gra, "padding");
-    } else
-        dbg(lvl_warning, "cannot get padding: this->gra is NULL");
-
-    transform_get_size(this_->trans, &width, &height);
-    dbg(lvl_debug, "width=%d height=%d", width, height);
-
-    if (padding) {
-        width -= (padding->left + padding->right);
-        height -= (padding->top + padding->bottom);
-        dbg(lvl_debug, "corrected for padding: width=%d height=%d", width, height);
-    }
-
-    if (this_->orientation == -1 || keep_orientation) {
-        p->x=50*width/100;
-        p->y=(50 + offset)*height/100;
-        if (dir)
-            *dir=keep_orientation?this_->orientation:nv->dir;
-    } else {
-        int mdir;
-        if (this_->tracking && this_->tracking_flag) {
-            mdir = tracking_get_angle(this_->tracking) - this_->orientation;
-        } else {
-            mdir=nv->dir-this_->orientation;
-        }
-
-        p->x=(50 - offset*sin(M_PI*mdir/180.))*width/100;
-        p->y=(50 + offset*cos(M_PI*mdir/180.))*height/100;
-        if (dir)
-            *dir=this_->orientation;
-    }
-
-    if (padding) {
-        p->x += padding->left;
-        p->y += padding->top;
-    }
-
-    dbg(lvl_debug, "x=%d y=%d, offset=%f", p->x, p->y, offset);
-
-    return 1;
-}
-
-/**
- * @brief Recalculates the map view so that the vehicle cursor is visible
- *
- * This function recalculates the parameters which control the visible map area, zoom and orientation. The
- * caller is responsible for redrawing the map after the function returns.
- *
- * If the vehicle supplies a {@code position_valid} attribute and it is {@code attr_position_valid_invalid},
- * the map position is not changed.
- *
- * @param this_ The navit object
- * @param autozoom Whether to set zoom based on current speed. If false, current zoom will be maintained.
- * @param keep_orientation Whether to maintain the current map orientation. If false, the map will be rotated
- * so that the bearing of the vehicle is up.
- */
-void navit_set_center_cursor(struct navit *this_, int autozoom, int keep_orientation) {
-    int dir;
-    struct point pn;
-    struct navit_vehicle *nv=this_->vehicle;
-    struct attr attr;
-    if (!nv || !nv->vehicle) {
-        return;
-    }
-    if (vehicle_get_attr(nv->vehicle, attr_position_valid, &attr, NULL) && (attr.u.num == attr_position_valid_invalid))
-        return;
-    navit_get_cursor_pnt(this_, &pn, keep_orientation, &dir);
-    transform_set_yaw(this_->trans, dir);
-    navit_set_center_coord_screen(this_, &nv->coord, &pn, 0);
-    if (autozoom)
-        navit_autozoom(this_, &nv->coord, nv->speed, 0);
-}
-
-/**
- * @brief Recenters the map so that the vehicle cursor is visible
- *
- * This function first calls {@code navit_set_center_cursor()} to recalculate the map display, then
- * triggers a redraw of the map.
- *
- *@param this_ The navit object
- */
-static void navit_set_center_cursor_draw(struct navit *this_) {
-    navit_set_center_cursor(this_,1,0);
-    if (this_->ready == 3)
-        navit_draw_async(this_, 1);
-}
-
-/**
- * @brief Recenters the map so that the vehicle cursor is visible
- *
- * This is the callback function for the {@code set_center_cursor()} command. It is just a wrapper around
- * {@code navit_set_center_cursor_draw()}.
- *
- *@param this_ The navit object
- */
-static int navit_cmd_set_center_cursor(struct navit *this_, char *function, struct attr **in, struct attr ***out) {
-    navit_set_center_cursor_draw(this_);
-    return 0;
-}
-
-void navit_set_center_screen(struct navit *this_, struct point *p, int set_timeout) {
-    struct coord c;
-    struct pcoord pc;
-    transform_reverse(this_->trans, p, &c);
-    pc.x = c.x;
-    pc.y = c.y;
-    pc.pro = transform_get_projection(this_->trans);
-    navit_set_center(this_, &pc, set_timeout);
-}
-
-static int navit_set_attr_do(struct navit *this_, struct attr *attr, int init) {
-    int dir=0, orient_old=0, attr_updated=0;
-    struct coord co;
-    long zoom;
-    GList *l;
-    struct navit_vehicle *nv;
-    struct layout *lay;
-    struct attr active;
-    active.type=attr_active;
-    active.u.num=0;
-
-    dbg(lvl_debug, "enter, this_=%p, attr=%p (%s), init=%d", this_, attr, attr_to_name(attr->type), init);
-
-    switch (attr->type) {
-    case attr_autozoom:
-        attr_updated=(this_->autozoom_secs != attr->u.num);
-        this_->autozoom_secs = attr->u.num;
-        break;
-    case attr_autozoom_active:
-        attr_updated=(this_->autozoom_active != attr->u.num);
-        this_->autozoom_active = attr->u.num;
-        break;
-    case attr_center:
-        transform_from_geo(transform_get_projection(this_->trans), attr->u.coord_geo, &co);
-        dbg(lvl_debug,"0x%x,0x%x",co.x,co.y);
-        transform_set_center(this_->trans, &co);
-        break;
-    case attr_drag_bitmap:
-        attr_updated=(this_->drag_bitmap != !!attr->u.num);
-        this_->drag_bitmap=!!attr->u.num;
-        break;
-    case attr_flags:
-        attr_updated=(this_->flags != attr->u.num);
-        this_->flags=attr->u.num;
-        break;
-    case attr_flags_graphics:
-        attr_updated=(this_->graphics_flags != attr->u.num);
-        this_->graphics_flags=attr->u.num;
-        break;
-    case attr_follow:
-        if (!this_->vehicle)
-            return 0;
-        attr_updated=(this_->vehicle->follow_curr != attr->u.num);
-        this_->vehicle->follow_curr = attr->u.num;
-        break;
-    case attr_default_layout:
-        if(!attr->u.str)
-            return 0;
-        if(this_->default_layout_name)	/* There is already a default layout, ignore this new value */
-            g_free(this_->default_layout_name);	/* Drop the previous layout name, use the this one instead */
-        this_->default_layout_name=g_strdup(attr->u.str);
-        attr_updated=1;
-        break;
-    case attr_layout:
-        if(!attr->u.layout)
-            return 0;
-        dbg(lvl_debug,"setting attr_layout to %s", attr->u.layout->name);
-        if(this_->layout_current!=attr->u.layout) {
-            navit_update_current_layout(this_, attr->u.layout);
-            graphics_font_destroy_all(this_->gra);
-            navit_set_cursors(this_);
-            if (this_->ready == 3)
-                navit_draw(this_);
-            attr_updated=1;
-        }
-        break;
-    case attr_layout_name:
-        if(!attr->u.str)
-            return 0;
-        dbg(lvl_debug,"setting attr_layout_name to %s", attr->u.str);
-        l=this_->layouts;
-        while (l) {
-            lay=l->data;
-            if (!strcmp(lay->name,attr->u.str)) {
-                struct attr attr;
-                attr.type=attr_layout;
-                attr.u.layout=lay;
-                return navit_set_attr_do(this_, &attr, init);
-            }
-            l=g_list_next(l);
-        }
-        return 0;
-    case attr_map_border:
-        if (this_->border != attr->u.num) {
-            this_->border=attr->u.num;
-            attr_updated=1;
-        }
-        break;
-    case attr_orientation:
-        orient_old=this_->orientation;
-        this_->orientation=attr->u.num;
-        if (!init) {
-            if (this_->orientation != -1) {
-                dir = this_->orientation;
-            } else {
-                if (this_->vehicle) {
-                    dir = this_->vehicle->dir;
-                }
-            }
-            transform_set_yaw(this_->trans, dir);
-            if (orient_old != this_->orientation) {
-#if 0
-                if (this_->ready == 3)
-                    navit_draw(this_);
-#endif
-                attr_updated=1;
-            }
-        }
-        break;
-    case attr_osd_configuration:
-        dbg(lvl_debug,"setting osd_configuration to %ld (was %d)", attr->u.num, this_->osd_configuration);
-        attr_updated=(this_->osd_configuration != attr->u.num);
-        this_->osd_configuration=attr->u.num;
-        break;
-    case attr_pitch:
-        attr_updated=(this_->pitch != attr->u.num);
-        this_->pitch=attr->u.num;
-        transform_set_pitch(this_->trans, round(this_->pitch*sqrt(240*320)/sqrt(
-                this_->w*this_->h))); // Pitch corrected for window resolution
-        if (!init && attr_updated && this_->ready == 3)
-            navit_draw(this_);
-        break;
-    case attr_projection:
-        if(this_->trans && transform_get_projection(this_->trans) != attr->u.projection) {
-            navit_projection_set(this_, attr->u.projection, !init);
-            attr_updated=1;
-        }
-        break;
-    case attr_radius:
-        attr_updated=(this_->radius != attr->u.num);
-        this_->radius=attr->u.num;
-        break;
-    case attr_recent_dest:
-        attr_updated=(this_->recentdest_count != attr->u.num);
-        this_->recentdest_count=attr->u.num;
-        break;
-    case attr_speech:
-        if(this_->speech && this_->speech != attr->u.speech) {
-            attr_updated=1;
-            this_->speech = attr->u.speech;
-        }
-        break;
-    case attr_timeout:
-        attr_updated=(this_->center_timeout != attr->u.num);
-        this_->center_timeout = attr->u.num;
-        break;
-    case attr_tracking:
-        attr_updated=(this_->tracking_flag != !!attr->u.num);
-        this_->tracking_flag=!!attr->u.num;
-        break;
-    case attr_transformation:
-        this_->trans=attr->u.transformation;
-        break;
-    case attr_use_mousewheel:
-        attr_updated=(this_->use_mousewheel != !!attr->u.num);
-        this_->use_mousewheel=!!attr->u.num;
-        break;
-    case attr_vehicle:
-        if (!attr->u.vehicle) {
-            if (this_->vehicle) {
-                vehicle_set_attr(this_->vehicle->vehicle, &active);
-                navit_set_vehicle(this_, NULL);
-                attr_updated=1;
-            }
-            break;
-        }
-        l=this_->vehicles;
-        while(l) {
-            nv=l->data;
-            if (nv->vehicle == attr->u.vehicle) {
-                if (!this_->vehicle || this_->vehicle->vehicle != attr->u.vehicle) {
-                    if (this_->vehicle)
-                        vehicle_set_attr(this_->vehicle->vehicle, &active);
-                    active.u.num=1;
-                    vehicle_set_attr(nv->vehicle, &active);
-                    attr_updated=1;
-                }
-                navit_set_vehicle(this_, nv);
-            }
-            l=g_list_next(l);
-        }
-        break;
-    case attr_vehicleprofile:
-        attr_updated=navit_set_vehicleprofile(this_, attr->u.vehicleprofile);
-        break;
-    case attr_zoom:
-        zoom=transform_get_scale(this_->trans);
-        attr_updated=(zoom != attr->u.num);
-        transform_set_scale(this_->trans, attr->u.num);
-        if (attr_updated && !init)
-            navit_draw(this_);
-        break;
-    case attr_zoom_min:
-        attr_updated=(attr->u.num != this_->zoom_min);
-        this_->zoom_min=attr->u.num;
-        break;
-    case attr_zoom_max:
-        attr_updated=(attr->u.num != this_->zoom_max);
-        this_->zoom_max=attr->u.num;
-        break;
-    case attr_message:
-        navit_add_message(this_, attr->u.str);
-        break;
-    case attr_follow_cursor:
-        attr_updated=(this_->follow_cursor != !!attr->u.num);
-        this_->follow_cursor=!!attr->u.num;
-        break;
-    case attr_imperial:
-        attr_updated=(this_->imperial != attr->u.num);
-        this_->imperial=attr->u.num;
-        break;
-    case attr_waypoints_flag:
-        attr_updated=(this_->waypoints_flag != !!attr->u.num);
-        this_->waypoints_flag=!!attr->u.num;
-        break;
-    default:
-        dbg(lvl_debug, "calling generic setter method for attribute type %s", attr_to_name(attr->type))
-        return navit_object_set_attr((struct navit_object *) this_, attr);
-    }
-    if (attr_updated && !init) {
-        callback_list_call_attr_2(this_->attr_cbl, attr->type, this_, attr);
-        if (attr->type == attr_osd_configuration)
-            graphics_draw_mode(this_->gra, draw_mode_end);
-    }
-    return 1;
-}
-
-int navit_set_attr(struct navit *this_, struct attr *attr) {
-    return navit_set_attr_do(this_, attr, 0);
-}
-
-int navit_get_attr(struct navit *this_, enum attr_type type, struct attr *attr, struct attr_iter *iter) {
-    struct message *msg;
-    struct coord *c;
-    int len,offset;
-    int ret=1;
-
-    switch (type) {
-    case attr_message:
-        msg = navit_get_messages(this_);
-
-        if (!msg) {
-            return 0;
-        }
-
-        len = 0;
-        while (msg) {
-            len += strlen(msg->text) + 1;
-            msg = msg->next;
-        }
-        attr->u.str = g_malloc(len + 1);
-
-        msg = navit_get_messages(this_);
-        offset = 0;
-        while (msg) {
-            g_stpcpy((attr->u.str + offset), msg->text);
-            offset += strlen(msg->text);
-            attr->u.str[offset] = '\n';
-            offset++;
-
-            msg = msg->next;
-        }
-
-        attr->u.str[len] = '\0';
-        break;
-    case attr_imperial:
-        attr->u.num=this_->imperial;
-        break;
-    case attr_bookmark_map:
-        attr->u.map=bookmarks_get_map(this_->bookmarks);
-        break;
-    case attr_bookmarks:
-        attr->u.bookmarks=this_->bookmarks;
-        break;
-    case attr_callback_list:
-        attr->u.callback_list=this_->attr_cbl;
-        break;
-    case attr_center:
-        c=transform_get_center(this_->trans);
-        transform_to_geo(transform_get_projection(this_->trans), c, &this_->center);
-        attr->u.coord_geo=&this_->center;
-        break;
-    case attr_destination:
-        if (! this_->destination_valid)
-            return 0;
-        attr->u.pcoord=&this_->destination;
-        break;
-    case attr_displaylist:
-        attr->u.displaylist=this_->displaylist;
-        return (attr->u.displaylist != NULL);
-    case attr_follow:
-        if (!this_->vehicle)
-            return 0;
-        attr->u.num=this_->vehicle->follow_curr;
-        break;
-    case attr_former_destination_map:
-        attr->u.map=this_->former_destination;
-        break;
-    case attr_graphics:
-        attr->u.graphics=this_->gra;
-        ret=(attr->u.graphics != NULL);
-        break;
-    case attr_gui:
-        attr->u.gui=this_->gui;
-        ret=(attr->u.gui != NULL);
-        break;
-    case attr_layer:
-        ret=attr_generic_get_attr(this_->attrs, NULL, type, attr, iter?(struct attr_iter *)&iter->iter:NULL);
-        break;
-    case attr_layout:
-        if (iter) {
-            if (iter->u.list) {
-                iter->u.list=g_list_next(iter->u.list);
-            } else {
-                iter->u.list=this_->layouts;
-            }
-            if (!iter->u.list)
-                return 0;
-            attr->u.layout=(struct layout *)iter->u.list->data;
-        } else {
-            attr->u.layout=this_->layout_current;
-        }
-        break;
-    case attr_map:
-        if (iter && this_->mapsets) {
-            if (!iter->u.mapset_handle) {
-                iter->u.mapset_handle=mapset_open((struct mapset *)this_->mapsets->data);
-            }
-            attr->u.map=mapset_next(iter->u.mapset_handle, 0);
-            if(!attr->u.map) {
-                mapset_close(iter->u.mapset_handle);
-                return 0;
-            }
-        } else {
-            return 0;
-        }
-        break;
-    case attr_mapset:
-        attr->u.mapset=this_->mapsets->data;
-        ret=(attr->u.mapset != NULL);
-        break;
-    case attr_navigation:
-        attr->u.navigation=this_->navigation;
-        break;
-    case attr_orientation:
-        attr->u.num=this_->orientation;
-        break;
-    case attr_osd:
-        ret=attr_generic_get_attr(this_->attrs, NULL, type, attr, iter?(struct attr_iter *)&iter->iter:NULL);
-        break;
-    case attr_osd_configuration:
-        attr->u.num=this_->osd_configuration;
-        break;
-    case attr_pitch:
-        attr->u.num=round(transform_get_pitch(this_->trans)*sqrt(this_->w*this_->h)/sqrt(
-                              240*320)); // Pitch corrected for window resolution
-        break;
-    case attr_projection:
-        if(this_->trans) {
-            attr->u.num=transform_get_projection(this_->trans);
-        } else {
-            return 0;
-        }
-        break;
-    case attr_route:
-        attr->u.route=this_->route;
-        break;
-    case attr_speech:
-        if(this_->speech) {
-            attr->u.speech=this_->speech;
-        } else {
-            return  0;
-        }
-        break;
-    case attr_timeout:
-        attr->u.num=this_->center_timeout;
-        break;
-    case attr_tracking:
-        attr->u.num=this_->tracking_flag;
-        break;
-    case attr_trackingo:
-        attr->u.tracking=this_->tracking;
-        break;
-    case attr_transformation:
-        attr->u.transformation=this_->trans;
-        break;
-    case attr_vehicle:
-        if(iter) {
-            if(iter->u.list) {
-                iter->u.list=g_list_next(iter->u.list);
-            } else {
-                iter->u.list=this_->vehicles;
-            }
-            if(!iter->u.list)
-                return 0;
-            attr->u.vehicle=((struct navit_vehicle*)iter->u.list->data)->vehicle;
-        } else {
-            if(this_->vehicle) {
-                attr->u.vehicle=this_->vehicle->vehicle;
-            } else {
-                return 0;
-            }
-        }
-        break;
-    case attr_vehicleprofile:
-        if (iter) {
-            if(iter->u.list) {
-                iter->u.list=g_list_next(iter->u.list);
-            } else {
-                iter->u.list=this_->vehicleprofiles;
-            }
-            if(!iter->u.list)
-                return 0;
-            attr->u.vehicleprofile=iter->u.list->data;
-        } else {
-            attr->u.vehicleprofile=this_->vehicleprofile;
-        }
-        break;
-    case attr_zoom:
-        attr->u.num=transform_get_scale(this_->trans);
-        break;
-    case attr_autozoom_active:
-        attr->u.num=this_->autozoom_active;
-        break;
-    case attr_follow_cursor:
-        attr->u.num=this_->follow_cursor;
-        break;
-    case attr_waypoints_flag:
-        attr->u.num=this_->waypoints_flag;
-        break;
-    default:
-        dbg(lvl_debug, "calling generic getter method for attribute type %s", attr_to_name(type))
-        return navit_object_get_attr((struct navit_object *) this_, type, attr, iter);
-    }
-    attr->type=type;
-    return ret;
-}
-
-/**
- * @brief Select the default layout by name
- *
- * @param this_ The navit instance
- * @param name The new default layout's name
- *
- * @return The first layout match (if any), or NULL if there was no match
- */
-struct layout *navit_get_layout_by_name(struct navit *this_, const char *layout_name) {
-    struct attr_iter *iter;
-    struct attr layout_attr;
-    struct layout *result = NULL;
-
-    if (!layout_name)
-        return NULL;
-    iter=navit_attr_iter_new(NULL);
-    while (navit_get_attr(this_, attr_layout, &layout_attr, iter)) {
-        if (strcmp(layout_attr.u.layout->name, layout_name) == 0) {
-            result = layout_attr.u.layout;
-        }
-    }
-    navit_attr_iter_destroy(iter);
-    return result;
-}
-
-/**
- * @brief Set the current layout
- *
- * @param this_ The navit instance
- * @param layout The layout to set as default (if NULL, we will set the current layout according to the default name stored in this_->default_layout_name
- *
- * @note If argument @p layout is NULL and the default layout name in the config file does not exist or has not been provided in the config file, the default layout is unchanged
- */
-void navit_update_current_layout(struct navit *this_, struct layout *layout) {
-    struct layout *default_layout = NULL;
-
-    if (layout) {
-        this_->layout_current=layout;
-    } else {
-        if (this_->default_layout_name) {	/* If a default layout name was provided */
-            default_layout=navit_get_layout_by_name(this_, this_->default_layout_name);
-            if (default_layout) {
-                dbg(lvl_debug, "Found the config-specified default layout '%s'", this_->default_layout_name);
-                this_->layout_current=default_layout;
-                return;
-            } else {
-                dbg(lvl_warning, "No definition exists in config for specified default layout '%s'", this_->default_layout_name);
-            }
-        }
-    }
-}
-
-static int navit_add_log(struct navit *this_, struct log *log) {
-    struct attr type_attr;
-    if (!log_get_attr(log, attr_type, &type_attr, NULL))
-        return 0;
-    if (!strcmp(type_attr.u.str, "textfile_debug")) {
-        char *header = "type=track_tracked\n";
-        if (this_->textfile_debug_log)
-            return 0;
-        log_set_header(log, header, strlen(header));
-        this_->textfile_debug_log=log;
-        return 1;
-    }
-    return 0;
-}
-
-static int navit_add_layout(struct navit *this_, struct layout *layout) {
-    struct attr active;
-    int is_default=0;
-    int is_active=0;
-    this_->layouts = g_list_append(this_->layouts, layout);
-    /** check if we want to immediately activate this layout.
-     * Unfortunately we have concurring conditions about when to activate
-     * a layout:
-     * - A layout could bear the "active" property
-     * - A layout's name could match this_->default_layout_name
-     * This cannot be fully resolved, as we cannot predict the future, so
-     * lets set the last parsed layout active, which either matches default_layout_name or
-     * bears the "active" tag, or is the first layout ever parsed.
-     */
-    if((layout->name != NULL) && (this_->default_layout_name != NULL)) {
-        if (strcmp(layout->name, this_->default_layout_name) == 0)
-            is_default = 1;
-    }
-    layout_get_attr(layout, attr_active, &active, NULL);
-    if(active.u.num)
-        is_active = 1;
-    dbg(lvl_debug, "add layout '%s' is_default %d, is_active %d", layout->name, is_default, is_active);
-    if(is_default || is_active || !this_->layout_current) {
-        this_->layout_current=layout;
-        return 1;
-    }
-    return 0;
-}
-
-int navit_add_attr(struct navit *this_, struct attr *attr) {
-    int ret=1;
-    switch (attr->type) {
-    case attr_callback:
-        navit_add_callback(this_, attr->u.callback);
-        break;
-    case attr_log:
-        ret=navit_add_log(this_, attr->u.log);
-        break;
-    case attr_gui:
-        ret=navit_set_gui(this_, attr->u.gui);
-        break;
-    case attr_graphics:
-        ret=navit_set_graphics(this_, attr->u.graphics);
-        break;
-    case attr_layout:
-        navit_add_layout(this_, attr->u.layout);
-        break;
-    case attr_route:
-        this_->route=attr->u.route;
-        break;
-    case attr_mapset:
-        this_->mapsets = g_list_append(this_->mapsets, attr->u.mapset);
-        break;
-    case attr_navigation:
-        this_->navigation=attr->u.navigation;
-        break;
-    case attr_osd:
-        break;
-    case attr_recent_dest:
-        this_->recentdest_count = attr->u.num;
-        break;
-    case attr_speech:
-        this_->speech=attr->u.speech;
-        break;
-    case attr_trackingo:
-        this_->tracking=attr->u.tracking;
-        break;
-    case attr_vehicle:
-        ret=navit_add_vehicle(this_, attr->u.vehicle);
-        break;
-    case attr_vehicleprofile:
-        this_->vehicleprofiles=g_list_append(this_->vehicleprofiles, attr->u.vehicleprofile);
-        break;
-    case attr_autozoom_min:
-        this_->autozoom_min = attr->u.num;
-        break;
-    case attr_autozoom_max:
-        this_->autozoom_max = attr->u.num;
-        break;
-    case attr_layer:
-    case attr_script:
-    case attr_traffic:
-        break;
-    default:
-        return 0;
-    }
-    if (ret)
-        this_->attrs=attr_generic_add_attr(this_->attrs, attr);
-    callback_list_call_attr_2(this_->attr_cbl, attr->type, this_, attr);
-    return ret;
-}
-
-int navit_remove_attr(struct navit *this_, struct attr *attr) {
-    int ret=1;
-    switch (attr->type) {
-    case attr_callback:
-        navit_remove_callback(this_, attr->u.callback);
-        break;
-    case attr_vehicle:
-    case attr_osd:
-        this_->attrs=attr_generic_remove_attr(this_->attrs, attr);
-        return 1;
-    default:
-        return 0;
-    }
-    return ret;
-}
-
-struct attr_iter *
-navit_attr_iter_new(void * unused) {
-    return g_new0(struct attr_iter, 1);
-}
-
-void navit_attr_iter_destroy(struct attr_iter *iter) {
-    g_free(iter);
-}
-
-void navit_add_callback(struct navit *this_, struct callback *cb) {
-    callback_list_add(this_->attr_cbl, cb);
-}
-
-void navit_remove_callback(struct navit *this_, struct callback *cb) {
-    callback_list_remove(this_->attr_cbl, cb);
-}
-
-static int coord_not_set(struct coord c) {
-    return !(c.x || c.y);
-}
-
-/**
- * Toggle the cursor update : refresh the map each time the cursor has moved (instead of only when it reaches a border)
- *
- * @param this_ The navit instance
- * @param nv vehicle to draw
- * @param pnt Screen coordinates of the vehicle. If NULL, position stored in nv is used.
- * @returns nothing
- */
-
-static void navit_vehicle_draw(struct navit *this_, struct navit_vehicle *nv, struct point *pnt) {
-    struct point cursor_pnt;
-    enum projection pro;
-
-    if (this_->blocked||coord_not_set(nv->coord))
-        return;
-    if (pnt)
-        cursor_pnt=*pnt;
-    else {
-        pro=transform_get_projection(this_->trans_cursor);
-        if (!pro)
-            return;
-        transform(this_->trans_cursor, pro, &nv->coord, &cursor_pnt, 1, 0, 0, NULL);
-    }
-    vehicle_draw(nv->vehicle, this_->gra, &cursor_pnt, nv->dir-transform_get_yaw(this_->trans_cursor), nv->speed);
-}
-
-/**
- * @brief Called when the position of a vehicle changes.
- *
- * This function is called when the position of any configured vehicle changes and triggers all actions
- * that need to happen in response, such as:
- * <ul>
- * <li>Switching between day and night layout (based on the new position timestamp)</li>
- * <li>Updating position, bearing and speed of {@code nv} with the data of the active vehicle
- * (which may be different from the vehicle reporting the update)</li>
- * <li>Invoking callbacks for {@code navit}'s {@code attr_position} and {@code attr_position_coord_geo}
- * attributes</li>
- * <li>Triggering an update of the vehicle's position on the map and, if needed, an update of the
- * visible map area ad orientation</li>
- * <li>Logging a new track point, if enabled</li>
- * <li>Updating the position on the route</li>
- * <li>Stopping navigation if the destination has been reached</li>
- * </ul>
- *
- * @param this_ The navit object
- * @param nv The {@code navit_vehicle} which reported a new position
- */
-static void navit_vehicle_update_position(struct navit *this_, struct navit_vehicle *nv) {
-    struct attr attr_valid, attr_dir, attr_speed, attr_pos;
-    struct pcoord cursor_pc;
-    struct point cursor_pnt, *pnt=&cursor_pnt;
-    struct tracking *tracking=NULL;
-    struct pcoord *pc;
-    enum projection pro=transform_get_projection(this_->trans_cursor);
-    int count;
-    int (*get_attr)(void *, enum attr_type, struct attr *, struct attr_iter *);
-    void *attr_object;
-    char *destination_file;
-    char *description;
-
-    profile(0,NULL);
-    if (this_->ready == 3)
-        navit_layout_switch(this_);
-    if (this_->vehicle == nv && this_->tracking_flag)
-        tracking=this_->tracking;
-    if (tracking) {
-        tracking_update(tracking, nv->vehicle, this_->vehicleprofile, pro);
-        attr_object=tracking;
-        get_attr=(int (*)(void *, enum attr_type, struct attr *, struct attr_iter *))tracking_get_attr;
-    } else {
-        attr_object=nv->vehicle;
-        get_attr=(int (*)(void *, enum attr_type, struct attr *, struct attr_iter *))vehicle_get_attr;
-    }
-    if (get_attr(attr_object, attr_position_valid, &attr_valid, NULL))
-        if (!attr_valid.u.num != attr_position_valid_invalid)
-            return;
-    if (! get_attr(attr_object, attr_position_direction, &attr_dir, NULL) ||
-            ! get_attr(attr_object, attr_position_speed, &attr_speed, NULL) ||
-            ! get_attr(attr_object, attr_position_coord_geo, &attr_pos, NULL)) {
-        profile(0,"return 2\n");
-        return;
-    }
-    nv->dir=*attr_dir.u.numd;
-    nv->speed=*attr_speed.u.numd;
-    transform_from_geo(pro, attr_pos.u.coord_geo, &nv->coord);
-    if (nv != this_->vehicle) {
-        if (this_->ready == 3)
-            navit_vehicle_draw(this_, nv, NULL);
-        profile(0,"return 3\n");
-        return;
-    }
-    cursor_pc.x = nv->coord.x;
-    cursor_pc.y = nv->coord.y;
-    cursor_pc.pro = pro;
-    if (this_->route) {
-        if (tracking)
-            route_set_position_from_tracking(this_->route, tracking, pro);
-        else
-            route_set_position(this_->route, &cursor_pc);
-    }
-    callback_list_call_attr_0(this_->attr_cbl, attr_position);
-    navit_textfile_debug_log(this_, "type=trackpoint_tracked");
-    if (this_->ready == 3) {
-        if (this_->gui && nv->speed > 2)
-            navit_disable_suspend();
-
-        transform(this_->trans_cursor, pro, &nv->coord, &cursor_pnt, 1, 0, 0, NULL);
-        if (this_->button_pressed != 1 && this_->follow_cursor && nv->follow_curr <= nv->follow &&
-                (nv->follow_curr == 1 || !transform_within_border(this_->trans_cursor, &cursor_pnt, this_->border)))
-            navit_set_center_cursor_draw(this_);
-        else
-            navit_vehicle_draw(this_, nv, pnt);
-
-        if (nv->follow_curr > 1)
-            nv->follow_curr--;
-        else
-            nv->follow_curr=nv->follow;
-    }
-    callback_list_call_attr_2(this_->attr_cbl, attr_position_coord_geo, this_, nv->vehicle);
-
-    /* Finally, if we reached our destination, stop navigation. */
-    if (this_->route) {
-        switch(route_destination_reached(this_->route)) {
-        case 1:
-            description=route_get_destination_description(this_->route, 0);
-            route_remove_waypoint(this_->route);
-            count=route_get_destination_count(this_->route);
-            pc=g_alloca(sizeof(*pc)*count);
-            route_get_destinations(this_->route, pc, count);
-            destination_file = bookmarks_get_destination_file(TRUE);
-            bookmarks_append_destinations(this_->former_destination, destination_file, pc, count, type_former_itinerary_part,
-                                          description, this_->recentdest_count);
-            g_free(destination_file);
-            g_free(description);
-            break;
-        case 2:
-            destination_file = bookmarks_get_destination_file(TRUE);
-            bookmarks_append_destinations(this_->former_destination, destination_file, NULL, 0, type_former_itinerary_part, NULL,
-                                          this_->recentdest_count);
-            navit_set_destination(this_, NULL, NULL, 0);
-            g_free(destination_file);
-            break;
-        }
-    }
-    profile(0,"return 5\n");
-}
-
-/**
- * @brief Called when a status attribute of a vehicle changes.
- *
- * This function is called when the {@code position_fix_type}, {@code position_sats_used} or {@code position_hdop}
- * attribute of any configured vehicle changes.
- *
- * The function checks if {@code nv} refers to the active vehicle and if {@code type} is one of the above types.
- * If this is the case, it invokes the callback functions for {@code navit}'s respective attributes.
- *
- * Future actions that need to happen when one of these three attribute changes for any vehicle should be
- * implemented here.
- *
- * @param this_ The navit object
- * @param nv The {@code navit_vehicle} which reported a new status attribute
- * @param type The type of attribute with has changed
- */
-static void navit_vehicle_update_status(struct navit *this_, struct navit_vehicle *nv, enum attr_type type) {
-    if (this_->vehicle != nv)
-        return;
-    switch(type) {
-    case attr_position_fix_type:
-    case attr_position_sats_used:
-    case attr_position_hdop:
-        callback_list_call_attr_2(this_->attr_cbl, type, this_, nv->vehicle);
-        break;
-    default:
-        return;
-    }
-}
-
-/**
- * Set the position of the vehicle
- *
- * @param navit The navit instance
- * @param c The coordinate to set as position
- * @returns nothing
- */
-
-void navit_set_position(struct navit *this_, struct pcoord *c) {
-    if (this_->route) {
-        route_set_position(this_->route, c);
-        callback_list_call_attr_0(this_->attr_cbl, attr_position);
-    }
-    if (this_->ready == 3)
-        navit_draw(this_);
-}
-
-static int navit_set_vehicleprofile(struct navit *this_, struct vehicleprofile *vp) {
-    if (this_->vehicleprofile == vp)
-        return 0;
-    this_->vehicleprofile=vp;
-    if (this_->route)
-        route_set_profile(this_->route, this_->vehicleprofile);
-    return 1;
-}
-
-int navit_set_vehicleprofile_name(struct navit *this_, char *name) {
-    struct attr attr;
-    GList *l;
-    l=this_->vehicleprofiles;
-    while (l) {
-        if (vehicleprofile_get_attr(l->data, attr_name, &attr, NULL)) {
-            if (!strcmp(attr.u.str, name)) {
-                navit_set_vehicleprofile(this_, l->data);
-                return 1;
-            }
-        }
-        l=g_list_next(l);
-    }
-    return 0;
-}
-
-static void navit_set_vehicle(struct navit *this_, struct navit_vehicle *nv) {
-    struct attr attr;
-    this_->vehicle=nv;
-    if (nv && vehicle_get_attr(nv->vehicle, attr_profilename, &attr, NULL)) {
-        if (navit_set_vehicleprofile_name(this_, attr.u.str))
-            return;
-    }
-    if (!this_->vehicleprofile) { // When deactivating vehicle, keep the last profile if any
-        if (!navit_set_vehicleprofile_name(this_,"car")) {
-            /* We do not have a fallback "car" profile
-            * so lets set any profile */
-            GList *l;
-            l=this_->vehicleprofiles;
-            if (l) {
-                this_->vehicleprofile=l->data;
-                if (this_->route)
-                    route_set_profile(this_->route, this_->vehicleprofile);
-            }
-        }
-    } else {
-        if (this_->route)
-            route_set_profile(this_->route, this_->vehicleprofile);
-    }
-}
-
-/**
- * @brief Registers a new vehicle.
- *
- * @param this_ The navit instance
- * @param v The vehicle to register
- * @return True for success
- */
-static int navit_add_vehicle(struct navit *this_, struct vehicle *v) {
-    struct navit_vehicle *nv=g_new0(struct navit_vehicle, 1);
-    struct attr follow, active, animate;
-    nv->vehicle=v;
-    nv->follow=0;
-    nv->last.x = 0;
-    nv->last.y = 0;
-    nv->animate_cursor=0;
-    if ((vehicle_get_attr(v, attr_follow, &follow, NULL)))
-        nv->follow=follow.u.num;
-    nv->follow_curr=nv->follow;
-    this_->vehicles=g_list_append(this_->vehicles, nv);
-    if ((vehicle_get_attr(v, attr_active, &active, NULL)) && active.u.num)
-        navit_set_vehicle(this_, nv);
-    if ((vehicle_get_attr(v, attr_animate, &animate, NULL)))
-        nv->animate_cursor=animate.u.num;
-    nv->callback.type=attr_callback;
-    nv->callback.u.callback=callback_new_attr_2(callback_cast(navit_vehicle_update_position), attr_position_coord_geo,
-                            this_, nv);
-    vehicle_add_attr(nv->vehicle, &nv->callback);
-    nv->callback.u.callback=callback_new_attr_3(callback_cast(navit_vehicle_update_status), attr_position_fix_type, this_,
-                            nv, attr_position_fix_type);
-    vehicle_add_attr(nv->vehicle, &nv->callback);
-    nv->callback.u.callback=callback_new_attr_3(callback_cast(navit_vehicle_update_status), attr_position_sats_used, this_,
-                            nv, attr_position_sats_used);
-    vehicle_add_attr(nv->vehicle, &nv->callback);
-    nv->callback.u.callback=callback_new_attr_3(callback_cast(navit_vehicle_update_status), attr_position_hdop, this_, nv,
-                            attr_position_hdop);
-    vehicle_add_attr(nv->vehicle, &nv->callback);
-    vehicle_set_attr(nv->vehicle, &this_->self);
-    return 1;
-}
-
-
-
-
-struct gui *
-navit_get_gui(struct navit *this_) {
-    return this_->gui;
-}
-
-struct transformation *
-navit_get_trans(struct navit *this_) {
-    return this_->trans;
-}
-
-struct route *
-navit_get_route(struct navit *this_) {
-    return this_->route;
-}
-
-struct navigation *
-navit_get_navigation(struct navit *this_) {
-    return this_->navigation;
-}
-
-struct displaylist *
-navit_get_displaylist(struct navit *this_) {
-    return this_->displaylist;
-}
-
-/*todo : make it switch to nightlayout when we are in a tunnel */
-void navit_layout_switch(struct navit *n) {
-
-    int currTs=0;
-    struct attr iso8601_attr,geo_attr,valid_attr,layout_attr;
-    double trise,tset,trise_actual;
-    struct layout *l;
-    int year, month, day;
-    int after_sunrise = FALSE;
-    int after_sunset = FALSE;
-
-    if (navit_get_attr(n,attr_layout,&layout_attr,NULL)!=1) {
-        return; //No layout - nothing to switch
-    }
-    if (!n->vehicle)
-        return;
-    l=layout_attr.u.layout;
-
-    if (l->dayname || l->nightname) {
-        //Ok, we know that we have profile to switch
-
-        //Check that we aren't calculating too fast
-        if (vehicle_get_attr(n->vehicle->vehicle, attr_position_time_iso8601,&iso8601_attr,NULL)==1) {
-            currTs=iso8601_to_secs(iso8601_attr.u.str);
-            dbg(lvl_debug,"currTs: %u:%u",currTs%86400/3600,((currTs%86400)%3600)/60);
-        }
-        dbg(lvl_debug,"prevTs: %u:%u",n->prevTs%86400/3600,((n->prevTs%86400)%3600)/60);
-
-        if (n->auto_switch == FALSE)
-            return;
-
-        if (currTs-(n->prevTs)<60) {
-            //We've have to wait a little
-            return;
-        }
-
-        if (sscanf(iso8601_attr.u.str,"%d-%02d-%02dT",&year,&month,&day) != 3)
-            return;
-        if (vehicle_get_attr(n->vehicle->vehicle, attr_position_valid, &valid_attr,NULL)
-                && valid_attr.u.num==attr_position_valid_invalid) {
-            return; //No valid fix yet
-        }
-
-        int *streetflags = tracking_get_current_flags(n->tracking);
-
-        if (streetflags != NULL) {
-
-            dbg(lvl_debug,"streetflags: %i", *streetflags);
-
-            // We are in  a tunnel and we have a nightlayout -> switch to nightlayout
-            if ((*streetflags & AF_UNDERGROUND) && l->nightname) {
-                navit_set_layout_by_name(n, l->nightname);
-                dbg(lvl_debug, "tunnel nightlayout");
-                return;
-            } else if (*streetflags & AF_UNDERGROUND) {
-                // We are already in nightmode, no matter of the sun
-                return;
-            }
-
-        } else {
-            dbg(lvl_debug,"streetflags are NULL");
-        }
-
-        if (vehicle_get_attr(n->vehicle->vehicle, attr_position_coord_geo,&geo_attr,NULL)!=1) {
-            //No position - no sun
-            return;
-        }
-        //We calculate sunrise anyway, cause it is needed both for day and for night
-        if (__sunriset__(year,month,day,geo_attr.u.coord_geo->lng,geo_attr.u.coord_geo->lat,-5,1,&trise,&tset)!=0) {
-            dbg(lvl_debug,"near the pole sun never rises/sets, so we should never switch profiles");
-            dbg(lvl_debug,"trise: %u:%u",HOURS(trise),MINUTES(trise));
-            dbg(lvl_debug,"tset: %u:%u",HOURS(tset),MINUTES(tset));
-            n->prevTs=currTs;
-            return;
-        }
-        trise_actual=trise;
-        dbg(lvl_debug,"trise: %u:%u",HOURS(trise),MINUTES(trise));
-        dbg(lvl_debug,"tset: %u:%u",HOURS(tset),MINUTES(tset));
-        dbg(lvl_debug,"dayname = %s, name =%s ",l->dayname, l->name);
-        dbg(lvl_debug,"nightname = %s, name = %s ",l->nightname, l->name);
-        if (HOURS(trise)*60+MINUTES(trise)<(currTs%86400)/60) {
-            after_sunrise = TRUE;
-        }
-
-        if (((HOURS(tset)*60+MINUTES(tset)<(currTs%86400)/60)) ||
-                ((HOURS(trise_actual)*60+MINUTES(trise_actual)>(currTs%86400)/60))) {
-            after_sunset = TRUE;
-        }
-        if (after_sunrise && !after_sunset && l->dayname) {
-            navit_set_layout_by_name(n,l->dayname);
-            dbg(lvl_debug,"layout set to day");
-        } else if (after_sunset && l->nightname) {
-            navit_set_layout_by_name(n,l->nightname);
-            dbg(lvl_debug,"layout set to night");
-        }
-        n->prevTs=currTs;
-    }
-}
-
-/**
- * @brief this command is used to change the layout and enable/disable the automatic layout switcher
- *
- * @param this_ The navit instance
- * @param function unused
- * @param in input attributes in[0], a string, see usage below
- * @param out output attribute unused
- *
- *
- * usage :
- * manual        : disable autoswitcher
- * auto          : enable autoswitcher
- * manual_toggle : disable autoswitcher and toggle between day / night layout
- * manual_day    : disable autoswitcher and set to day layout
- * manual_night  : disable autoswitcher and set to night layout
- *
- * todo : make it return the state of the autoswitcher and
- * the version of the active layout (day/night/undefined)
- */
-static
-int navit_cmd_switch_layout_day_night(struct navit *this_, char *function, struct attr **in, struct attr *** out) {
-
-    if (!(in && in[0] && ATTR_IS_STRING(in[0]->type))) {
-        return 0;
-    }
-
-    dbg(lvl_debug," called with mode =%s",in[0]->u.str);
-
-    if (!this_->layout_current)
-        return 0;
-
-    if (!this_->vehicle)
-        return 0;
-
-    if (!strcmp(in[0]->u.str,"manual")) {
-        this_->auto_switch = FALSE;
-    } else if (!strcmp(in[0]->u.str,"auto")) {
-        this_->auto_switch = TRUE;
-        this_->prevTs = 0;
-        navit_layout_switch(this_);
-    } else if (!strcmp(in[0]->u.str,"manual_toggle")) {
-        if (this_->layout_current->dayname) {
-            navit_set_layout_by_name(this_,this_->layout_current->dayname);
-            this_->auto_switch = FALSE;
-            dbg(lvl_debug,"toggeled layout to = %s",this_->layout_current->name);
-        } else if (this_->layout_current->nightname) {
-            navit_set_layout_by_name(this_,this_->layout_current->nightname);
-            this_->auto_switch = FALSE;
-            dbg(lvl_debug,"toggeled layout to = %s",this_->layout_current->name);
-        }
-    } else if (!strcmp(in[0]->u.str,"manual_day") && this_->layout_current->dayname) {
-        navit_set_layout_by_name(this_,this_->layout_current->dayname);
-        this_->auto_switch = FALSE;
-        dbg(lvl_debug,"switched layout to = %s",this_->layout_current->name);
-    } else if (!strcmp(in[0]->u.str,"manual_night") && this_->layout_current->nightname) {
-        navit_set_layout_by_name(this_,this_->layout_current->nightname);
-        this_->auto_switch = FALSE;
-        dbg(lvl_debug,"switched layout to = %s",this_->layout_current->name);
-    }
-
-    dbg(lvl_debug,"auto = %i",this_->auto_switch);
-    return 0;
-}
-
-int navit_set_vehicle_by_name(struct navit *n,const char *name) {
-    struct vehicle *v;
-    struct attr_iter *iter;
-    struct attr vehicle_attr, name_attr;
-
-    iter=navit_attr_iter_new(NULL);
-
-    while (navit_get_attr(n,attr_vehicle,&vehicle_attr,iter)) {
-        v=vehicle_attr.u.vehicle;
-        vehicle_get_attr(v,attr_name,&name_attr,NULL);
-        if (name_attr.type==attr_name) {
-            if (!strcmp(name,name_attr.u.str)) {
-                navit_set_attr(n,&vehicle_attr);
-                navit_attr_iter_destroy(iter);
-                return 1;
-            }
-        }
-    }
-    navit_attr_iter_destroy(iter);
-    return 0;
-}
-
-int navit_set_layout_by_name(struct navit *n,const char *name) {
-    struct layout *l;
-    struct attr_iter iter;
-    struct attr layout_attr;
-
-    iter.u.list=0x00;
-
-    if (navit_get_attr(n,attr_layout,&layout_attr,&iter)!=1) {
-        return 0; //No layouts - nothing to do
-    }
-    if (iter.u.list==NULL) {
-        return 0;
-    }
-
-    iter.u.list=g_list_first(iter.u.list);
-
-    while(iter.u.list) {
-        l=(struct layout*)iter.u.list->data;
-        if (!strcmp(name,l->name)) {
-            layout_attr.u.layout=l;
-            layout_attr.type=attr_layout;
-            navit_set_attr(n,&layout_attr);
-            iter.u.list=g_list_first(iter.u.list);
-            return 1;
-        }
-        iter.u.list=g_list_next(iter.u.list);
-    }
-
-    iter.u.list=g_list_first(iter.u.list);
-    return 0;
-}
-
-void navit_disable_suspend() {
-    gui_disable_suspend(global_navit->gui);
-    callback_list_call_attr_0(global_navit->attr_cbl,attr_unsuspend);
-}
-
-/**
- * @brief Blocks or unblocks redraw operations.
- *
- * The {@code block} parameter specifies the operation to carry out:
- *
- * {@code block > 0} cancels all draw operations in progress and blocks future operations. It sets flag 1 of the
- * {@code blocked} member. If draw operations in progress were canceled, flag 2 is also set.
- *
- * {@code block = 0} unblocks redraw operations, resetting {@code blocked} to 0. If flag 2 was previously set,
- * indicating that draw operations had been previously canceled, a redraw is triggered.
- *
- * {@code block < 0} unblocks redraw operations and forces a redraw. As above, {@code blocked} is reset to 0.
- *
- * @param this_ The navit instance
- * @param block The operation to perform, see description
- *
- * @return {@code true} if a redraw operation was triggered, {@code false} if not
- */
-int navit_block(struct navit *this_, int block) {
-    if (block > 0) {
-        this_->blocked |= 1;
-        if (graphics_draw_cancel(this_->gra, this_->displaylist))
-            this_->blocked |= 2;
-        return 0;
-    }
-    if ((this_->blocked & 2) || block < 0) {
-        this_->blocked=0;
-        navit_draw(this_);
-        return 1;
-    }
-    this_->blocked=0;
-    return 0;
-}
-
-/**
- * @brief Returns whether redraw operations are currently blocked.
- */
-int navit_get_blocked(struct navit *this_) {
-    return this_->blocked;
-}
-
-void navit_destroy(struct navit *this_) {
-    dbg(lvl_debug,"enter %p",this_);
-    GList *mapsets;
-    struct map * map;
-    struct attr attr;
-    graphics_draw_cancel(this_->gra, this_->displaylist);
-
-    mapsets = this_->mapsets;
-    while (mapsets) {
-        GList *maps = NULL;
-        struct mapset_handle *msh;
-        msh = mapset_open(mapsets->data);
-        while (msh && (map = mapset_next(msh, 0))) {
-            /* Add traffic map (identified by the `attr_traffic` attribute) to list of maps to remove */
-            if (map_get_attr(map, attr_traffic, &attr, NULL))
-                maps = g_list_append(maps, map);
-        }
-        mapset_close(msh);
-
-        /* Remove traffic maps, if any */
-        while (maps) {
-            attr.type = attr_map;
-            attr.u.map = maps->data;
-            mapset_remove_attr(mapsets->data, &attr);
-            attr_free_content(&attr);
-            maps = g_list_next(maps);
-        }
-        if (maps)
-            g_list_free(maps);
-        mapsets = g_list_next(mapsets);
-    }
-
-    callback_list_call_attr_1(this_->attr_cbl, attr_destroy, this_);
-    attr_list_free(this_->attrs);
-
-    if(cmd_int_var_hash) {
-        g_hash_table_destroy(cmd_int_var_hash);
-        cmd_int_var_hash=NULL;
-    }
-    if(cmd_attr_var_hash) {
-        g_hash_table_destroy(cmd_attr_var_hash);
-        cmd_attr_var_hash=NULL;
-    }
-    if(cmd_int_var_stack) {
-        g_list_foreach(cmd_int_var_stack, (GFunc)attr_free_g, NULL);
-        g_list_free(cmd_int_var_stack);
-        cmd_int_var_stack=NULL;
-    }
-
-    if (this_->bookmarks) {
-        char *center_file = bookmarks_get_center_file(TRUE);
-        bookmarks_write_center_to_file(this_->bookmarks, center_file);
-        g_free(center_file);
-        bookmarks_destroy(this_->bookmarks);
-    }
-
-    callback_destroy(this_->nav_speech_cb);
-    callback_destroy(this_->roadbook_callback);
-    callback_destroy(this_->popup_callback);
-    callback_destroy(this_->motion_timeout_callback);
-    callback_destroy(this_->progress_cb);
-
-    if(this_->gra) {
-        graphics_remove_callback(this_->gra, this_->resize_callback);
-        graphics_remove_callback(this_->gra, this_->button_callback);
-        graphics_remove_callback(this_->gra, this_->motion_callback);
-        graphics_remove_callback(this_->gra, this_->predraw_callback);
-    }
-
-    callback_destroy(this_->resize_callback);
-    callback_destroy(this_->motion_callback);
-    callback_destroy(this_->predraw_callback);
-
-    callback_destroy(this_->route_cb);
-    if (this_->route)
-        route_destroy(this_->route);
-
-    map_destroy(this_->former_destination);
-
-    graphics_displaylist_destroy(this_->displaylist);
-
-    graphics_free(this_->gra);
-
-    g_free(this_);
-}
-
-struct object_func navit_func = {
-    attr_navit,
-    (object_func_new)navit_new,
-    (object_func_get_attr)navit_get_attr,
-    (object_func_iter_new)navit_attr_iter_new,
-    (object_func_iter_destroy)navit_attr_iter_destroy,
-    (object_func_set_attr)navit_set_attr,
-    (object_func_add_attr)navit_add_attr,
-    (object_func_remove_attr)navit_remove_attr,
-    (object_func_init)navit_init,
-    (object_func_destroy)navit_destroy,
-    (object_func_dup)NULL,
-    (object_func_ref)navit_object_ref,
-    (object_func_unref)navit_object_unref,
-};
-
-/** @} */