Add:Core:Extended attribute system
[profile/ivi/navit.git] / navit / navit / route.c
index c363317..2979e1e 100644 (file)
@@ -64,6 +64,8 @@
 #include "transform.h"
 #include "plugin.h"
 #include "fib.h"
+#include "event.h"
+#include "callback.h"
 
 
 struct map_priv {
@@ -93,6 +95,29 @@ struct route_graph_point {
        struct coord c;                                          /**< Coordinates of this point */
 };
 
+
+/**
+ * @brief A segment in the route graph or path
+ *
+ * This is a segment in the route graph or path. A segment represents a driveable way.
+ */
+
+struct route_segment_data {
+       struct item item;                                                       /**< The item (e.g. street) that this segment represents. */
+       int flags;
+       int len;                                                                        /**< Length of this segment */
+       /*NOTE: After a segment, various fields may follow, depending on what flags are set. Order of fields:
+                               1.) maxspeed                    Maximum allowed speed on this segment. Present if AF_SPEED_LIMIT is set.
+                               2.) offset                              If the item is segmented (i.e. represented by more than one segment), this
+                                                                               indicates the position of this segment in the item. Present if AF_SEGMENTED is set.
+        */
+};
+
+#define RSD_OFFSET(x) *((int *)route_segment_data_field_pos((x), attr_offset))
+#define RSD_MAXSPEED(x) *((int *)route_segment_data_field_pos((x), attr_maxspeed))
+
+
+
 /**
  * @brief A segment in the route graph
  *
@@ -106,13 +131,7 @@ struct route_graph_segment {
                                                                                                 *  same point. Start of this list is in route_graph_point->end. */
        struct route_graph_point *start;                        /**< Pointer to the point this segment starts at. */
        struct route_graph_point *end;                          /**< Pointer to the point this segment ends at. */
-       struct item item;                                                       /**< The item (e.g. street) that this segment represents. */
-       int flags;
-       int len;                                                                        /**< Length of this segment */
-       int offset;                                                                     /**< If the item represented by this segment is "segmented" (i.e. 
-                                                                                                *  is represented by several segments instead of just one), this 
-                                                                                                *  indicates the position of this segment in the item - for items
-                                                                                                *  that are not segmented this should always be 1 */
+       struct route_segment_data data;                         /**< The segment data */
 };
 
 /**
@@ -122,9 +141,7 @@ struct route_graph_segment {
  */
 struct route_path_segment {
        struct route_path_segment *next;        /**< Pointer to the next segment in the path */
-       struct item item;                                       /**< The item (e.g. street) this segment represents */
-       int length;                                                     /**< Length of the segment */
-       int offset;                                                     /**< Same as in route_graph_segment->offset */
+       struct route_segment_data *data;        /**< The segment data */
        int direction;                                          /**< Order in which the coordinates are ordered. >0 means "First
                                                                                 *  coordinate of the segment is the first coordinate of the item", <=0 
                                                                                 *  means reverse. */
@@ -145,7 +162,7 @@ struct route_info {
        int lenpos;                      /**< Distance between lp and the end of the street */
        int lenneg;                      /**< Distance between lp and the start of the street */
        int lenextra;                    /**< Distance between lp and c */
-
+       int percent;                     /**< ratio of lenneg to lenght of whole street in percent */
        struct street_data *street; /**< The street lp is on */
 };
 
@@ -155,6 +172,9 @@ struct route_info {
  * This structure describes a whole routing path
  */
 struct route_path {
+       int in_use;                                             /**< The path is in use and can not be updated */
+       int update_required;                                    /**< The path needs to be updated after it is no longer in use */
+       int updated;                                            /**< The path has only been updated */
        struct route_path_segment *path;                        /**< The first segment in the path, i.e. the segment one should 
                                                                                                 *  drive in next */
        struct route_path_segment *path_last;           /**< The last segment in the path */
@@ -170,12 +190,26 @@ struct route_path {
 #define RF_SHOWGRAPH   (1<<5)
 
 /**
+ * @brief Routing preferences
+ * 
+ * This struct holds all information about route preferences (fastest, shortest, etc)
+ */
+
+struct route_preferences {
+       int mode;                                               /**< 0 = Auto, 1 = On-Road, 2 = Off-Road */
+       int flags_forward_mask;                                 /**< Flags mask for moving in positive direction */
+       int flags_reverse_mask;                                 /**< Flags mask for moving in reverse direction */
+       int flags;                                              /**< Required flags to move through a segment */
+       int maxspeed_handling;                                  /**< 0 = Always, 1 = Only if lower, 2 = Never */
+       int speedlist[route_item_last-route_item_first+1];      /**< The speedlist for this route */
+};
+
+/**
  * @brief A complete route
  * 
  * This struct holds all information about a route.
  */
 struct route {
-       int version;                            /**< Counts how many times this route got updated */
        struct mapset *ms;                      /**< The mapset this route is built upon */
        unsigned flags;
        struct route_info *pos;         /**< Current position within this route */
@@ -185,8 +219,11 @@ struct route {
        struct route_path *path2;       /**< Pointer to the route path */
        struct map *map;
        struct map *graph_map;
+       struct callback * route_graph_done_cb ; /**< Callback when route graph is done */
+       struct callback * route_graph_flood_done_cb ; /**< Callback when route graph flooding is done */
+       struct callback_list *cbl;      /**< Callback list to call when route changes */
        int destination_distance;       /**< Distance to the destination at which the destination is considered "reached" */
-       int speedlist[route_item_last-route_item_first+1];      /**< The speedlist for this route */
+       struct route_preferences preferences; /**< Routing preferences */
 };
 
 /**
@@ -195,6 +232,14 @@ struct route {
  * This structure describes a whole routing graph
  */
 struct route_graph {
+       int busy;                                       /**< The graph is being built */
+       struct map_selection *sel;                      /**< The rectangle selection for the graph */
+       struct mapset_handle *h;                        /**< Handle to the mapset */    
+       struct map *m;                                  /**< Pointer to the currently active map */     
+       struct map_rect *mr;                            /**< Pointer to the currently active map rectangle */   
+       struct callback *idle_cb;                       /**< Idle callback to process the graph */
+       struct callback *done_cb;                       /**< Callback when graph is done */
+       struct event_idle *idle_ev;                     /**< The pointer to the idle event */
        struct route_graph_point *route_points;         /**< Pointer to the first route_graph_point in the linked list of  all points */
        struct route_graph_segment *route_segments; /**< Pointer to the first route_graph_segment in the linked list of all segments */
 #define HASH_SIZE 8192
@@ -217,11 +262,12 @@ struct route_graph_point_iterator {
 
 static struct route_info * route_find_nearest_street(struct mapset *ms, struct pcoord *c);
 static struct route_graph_point *route_graph_get_point(struct route_graph *this, struct coord *c);
-static void route_graph_update(struct route *this);
-static struct route_path *route_path_new(struct route_graph *this, struct route_path *oldpath, struct route_info *pos, struct route_info *dst, int *speedlist);
+static void route_graph_update(struct route *this, struct callback *cb);
+static void route_graph_build_done(struct route_graph *rg, int cancel);
+static struct route_path *route_path_new(struct route_graph *this, struct route_path *oldpath, struct route_info *pos, struct route_info *dst, struct route_preferences *pref);
 static void route_process_street_graph(struct route_graph *this, struct item *item);
 static void route_graph_destroy(struct route_graph *this);
-static void route_path_update(struct route *this);
+static void route_path_update(struct route *this, int cancel);
 
 /**
  * @brief Returns the projection used for this route
@@ -232,7 +278,11 @@ static void route_path_update(struct route *this);
 static enum projection route_projection(struct route *route)
 {
        struct street_data *street;
+       if (!route->pos && !route->dst)
+               return projection_none;
        street = route->pos ? route->pos->street : route->dst->street;
+       if (!street || !street->item.map)
+               return projection_none;
        return map_projection(street->item.map);
 }
 
@@ -343,16 +393,15 @@ route_new(struct attr *parent, struct attr **attrs)
        struct route *this=g_new0(struct route, 1);
        struct attr dest_attr;
 
-       if (!this) {
-               printf("%s:Out of memory\n", __FUNCTION__);
-               return NULL;
-       }
-
        if (attr_generic_get_attr(attrs, NULL, attr_destination_distance, &dest_attr, NULL)) {
                this->destination_distance = dest_attr.u.num;
        } else {
                this->destination_distance = 50; // Default value
        }
+       this->cbl=callback_list_new();
+       this->preferences.flags_forward_mask=AF_ONEWAYREV|AF_CAR;
+       this->preferences.flags_reverse_mask=AF_ONEWAY|AF_CAR;
+       this->preferences.flags=AF_CAR;
 
        return this;
 }
@@ -378,10 +427,10 @@ route_check_roundabout(struct route_graph_segment *seg, int level, int direction
        if (!level) {
                return 0;
        }
-       if (!direction && !(seg->flags & AF_ONEWAY)) {
+       if (!direction && !(seg->data.flags & AF_ONEWAY)) {
                return 0;
        }
-       if (direction && !(seg->flags & AF_ONEWAYREV)) {
+       if (direction && !(seg->data.flags & AF_ONEWAYREV)) {
                return 0;
        }
        
@@ -408,13 +457,19 @@ route_check_roundabout(struct route_graph_segment *seg, int level, int direction
                        continue;
                }
 
+               if (cur->data.item.type != origin->data.item.type) {
+                       // This street is of another type, can't be part of the roundabout
+                       cur = rp_iterator_next(&it);
+                       continue;
+               }
+
                if (cur == origin) {
-                       seg->flags |= AF_ROUNDABOUT;
+                       seg->data.flags |= AF_ROUNDABOUT;
                        return 1;
                }
 
                if (route_check_roundabout(cur, (level-1), rp_iterator_end(&it), origin)) {
-                       seg->flags |= AF_ROUNDABOUT;
+                       seg->data.flags |= AF_ROUNDABOUT;
                        return 1;
                }
 
@@ -481,7 +536,7 @@ route_get_dst(struct route *this)
 int *
 route_get_speedlist(struct route *this)
 {
-       return this->speedlist;
+       return this->preferences.speedlist;
 }
 
 /**
@@ -511,7 +566,7 @@ route_set_speed(struct route *this, enum item_type type, int value)
                dbg(0,"street type %d out of range [%d,%d]", type, route_item_first, route_item_last);
                return 0;
        }
-       this->speedlist[type-route_item_first]=value;
+       this->preferences.speedlist[type-route_item_first]=value;
        return 1;
 }
 
@@ -559,6 +614,7 @@ int
 route_destination_reached(struct route *this)
 {
        struct street_data *sd = NULL;
+       enum projection pro;
 
        if (!this->pos)
                return 0;
@@ -579,14 +635,39 @@ route_destination_reached(struct route *this)
        if ((sd->flags & AF_ONEWAYREV) && (this->pos->lenpos >= this->dst->lenpos)) {
                return 0;
        }
+       pro=route_projection(this);
+       if (pro == projection_none)
+               return 0;
         
-       if (transform_distance(route_projection(this), &this->pos->c, &this->dst->lp) > this->destination_distance) {
+       if (transform_distance(pro, &this->pos->c, &this->dst->lp) > this->destination_distance) {
                return 0;
        }
        
        return 1;
 }
 
+static void
+route_path_update_done(struct route *this, int new_graph)
+{
+       struct route_path *oldpath=this->path2;
+       int val;
+       if (this->path2 && this->path2->in_use) {
+               this->path2->update_required=1+new_graph;
+               return;
+       }
+
+       this->path2=route_path_new(this->graph, oldpath, this->pos, this->dst, &this->preferences);
+       route_path_destroy(oldpath);
+       if (this->path2) {
+               if (new_graph)
+                       val=4;
+               else
+                       val=2+!this->path2->updated;
+       } else
+               val=1;
+       callback_list_call_attr_1(this->cbl, attr_route, (void *)val);
+}
+
 /**
  * @brief Updates the route graph and the route path if something changed with the route
  *
@@ -599,31 +680,38 @@ route_destination_reached(struct route *this)
  * @param this The route to update
  */
 static void
-route_path_update(struct route *this)
+route_path_update(struct route *this, int cancel)
 {
-       struct route_path *oldpath = NULL;
+       dbg(1,"enter %d\n", cancel);
        if (! this->pos || ! this->dst) {
+               dbg(1,"destroy\n");
                route_path_destroy(this->path2);
                this->path2 = NULL;
                return;
        }
+       if (cancel) {
+               route_graph_destroy(this->graph);
+               this->graph=NULL;
+       }
        /* the graph is destroyed when setting the destination */
-       if (this->graph && this->pos && this->dst && this->path2) {
+       if (this->graph) {
+               if (this->graph->busy) {
+                       dbg(1,"busy building graph\n");
+                       return;
+               }
                // we can try to update
-               oldpath = this->path2;
+               dbg(1,"try update\n");
+               route_path_update_done(this, 0);
+       } else {
+               route_path_destroy(this->path2);
                this->path2 = NULL;
        }
-       if (! this->graph || !(this->path2=route_path_new(this->graph, oldpath, this->pos, this->dst, this->speedlist))) {
-               profile(0,NULL);
-               route_graph_update(this);
-               this->path2=route_path_new(this->graph, oldpath, this->pos, this->dst, this->speedlist);
-               profile(1,"route_path_new");
-               profile(0,"end");
-       }
-
-       if (oldpath) {
-               /* Destroy what's left */
-               route_path_destroy(oldpath);
+       if (!this->graph || !this->path2) {
+               dbg(1,"rebuild graph\n");
+               if (! this->route_graph_flood_done_cb)
+                       this->route_graph_flood_done_cb=callback_new_2(callback_cast(route_path_update_done), this, 1);
+               dbg(1,"route_graph_update\n");
+               route_graph_update(this, this->route_graph_flood_done_cb);
        }
 }
 
@@ -642,6 +730,10 @@ route_info_distances(struct route_info *ri, enum projection pro)
        ri->lenextra=transform_distance(pro, &ri->lp, &ri->c);
        ri->lenneg=transform_polyline_length(pro, sd->c, npos)+transform_distance(pro, &sd->c[ri->pos], &ri->lp);
        ri->lenpos=transform_polyline_length(pro, sd->c+npos, sd->count-npos)+transform_distance(pro, &sd->c[npos], &ri->lp);
+       if (ri->lenneg || ri->lenpos)
+               ri->percent=(ri->lenneg*100)/(ri->lenneg+ri->lenpos);
+       else
+               ri->percent=50;
 }
 
 /**
@@ -664,8 +756,7 @@ route_set_position(struct route *this, struct pcoord *pos)
        if (! this->pos)
                return;
        route_info_distances(this->pos, pos->pro);
-       if (this->dst) 
-               route_path_update(this);
+       route_path_update(this, 0);
 }
 
 /**
@@ -705,7 +796,7 @@ route_set_position_from_tracking(struct route *this, struct tracking *tracking)
        dbg(3,"street 0=(0x%x,0x%x) %d=(0x%x,0x%x)\n", ret->street->c[0].x, ret->street->c[0].y, ret->street->count-1, ret->street->c[ret->street->count-1].x, ret->street->c[ret->street->count-1].y);
        this->pos=ret;
        if (this->dst) 
-               route_path_update(this);
+               route_path_update(this, 0);
        dbg(2,"ret\n");
 }
 
@@ -822,14 +913,15 @@ route_set_destination(struct route *this, struct pcoord *dst)
        if (dst) {
                this->dst=route_find_nearest_street(this->ms, dst);
                if(this->dst)
-               route_info_distances(this->dst, dst->pro);
-       }
+                       route_info_distances(this->dst, dst->pro);
+       } else 
+               callback_list_call_attr_1(this->cbl, attr_route, (void *)0);
        profile(1,"find_nearest_street");
 
        /* The graph has to be destroyed and set to NULL, otherwise route_path_update() doesn't work */
        route_graph_destroy(this->graph);
        this->graph=NULL;
-       route_path_update(this);
+       route_path_update(this, 1);
        profile(0,"end");
 }
 
@@ -914,6 +1006,54 @@ route_graph_free_points(struct route_graph *this)
 }
 
 /**
+ * @brief Returns the position of a certain field appended to a route graph segment
+ *
+ * This function returns a pointer to a field that is appended to a route graph
+ * segment.
+ *
+ * @param seg The route graph segment the field is appended to
+ * @param type Type of the field that should be returned
+ * @return A pointer to a field of a certain type, or NULL if no such field is present
+ */
+static void *
+route_segment_data_field_pos(struct route_segment_data *seg, enum attr_type type)
+{
+       unsigned char *ptr;
+       
+       ptr = ((unsigned char*)seg) + sizeof(struct route_segment_data);
+
+       if (seg->flags & AF_SPEED_LIMIT) {
+               if (type == attr_maxspeed) 
+                       return (void*)ptr;
+               ptr += sizeof(int);
+       }
+       if (seg->flags & AF_SEGMENTED) {
+               if (type == attr_offset) 
+                       return (void*)ptr;
+               ptr += sizeof(int);
+       }
+       return NULL;
+}
+
+/**
+ * @brief Calculates the size of a route_segment_data struct with given flags
+ *
+ * @param flags The flags of the route_segment_data
+ */
+
+static int
+route_segment_data_size(int flags)
+{
+       int ret=sizeof(struct route_segment_data);
+       if (flags & AF_SPEED_LIMIT)
+               ret+=sizeof(int);
+       if (flags & AF_SEGMENTED)
+               ret+=sizeof(int);
+       return ret;
+}
+
+
+/**
  * @brief Inserts a new segment into the route graph
  *
  * This function performs a check if a segment for the item specified already exists, and inserts
@@ -926,22 +1066,30 @@ route_graph_free_points(struct route_graph *this)
  * @param item The item that is represented by this segment
  * @param flags Flags for this segment
  * @param offset If the item passed in "item" is segmented (i.e. divided into several segments), this indicates the position of this segment within the item
+ * @param maxspeed The maximum speed allowed on this segment in km/h. -1 if not known.
  */
 static void
 route_graph_add_segment(struct route_graph *this, struct route_graph_point *start,
                        struct route_graph_point *end, int len, struct item *item,
-                       int flags, int offset)
+                       int flags, int offset, int maxspeed)
 {
        struct route_graph_segment *s;
-
+       int size;
        s=start->start;
        while (s) {
-               if (item_is_equal(*item, s->item) && (s->offset == offset)) 
-                       return;
+               if (item_is_equal(*item, s->data.item)) {
+                       if (flags & AF_SEGMENTED) {
+                               if (RSD_OFFSET(&s->data) == offset) {
+                                       return;
+                               }
+                       } else
+                               return;
+               }
                s=s->start_next;
        } 
 
-       s = g_new0(struct route_graph_segment, 1);
+       size = sizeof(struct route_graph_segment)-sizeof(struct route_segment_data)+route_segment_data_size(flags);
+       s = g_malloc0(size);
        if (!s) {
                printf("%s:Out of memory\n", __FUNCTION__);
                return;
@@ -953,10 +1101,15 @@ route_graph_add_segment(struct route_graph *this, struct route_graph_point *star
        s->end_next=end->end;
        end->end=s;
        dbg_assert(len >= 0);
-       s->len=len;
-       s->item=*item;
-       s->flags=flags;
-       s->offset = offset;
+       s->data.len=len;
+       s->data.item=*item;
+       s->data.flags=flags;
+
+       if (flags & AF_SPEED_LIMIT) 
+               RSD_MAXSPEED(&s->data)=maxspeed;
+       if (flags & AF_SEGMENTED) 
+               RSD_OFFSET(&s->data)=offset;
+
        s->next=this->route_segments;
        this->route_segments=s;
        if (debug_route)
@@ -1020,16 +1173,23 @@ static struct route_path_segment *
 route_extract_segment_from_path(struct route_path *path, struct item *item,
                                                 int offset)
 {
+       int soffset;
        struct route_path_segment *sp = NULL, *s;
        s = path->path;
        while (s) {
-               if (s->offset == offset && item_is_equal(s->item,*item)) {
-                       if (sp) {
-                               sp->next = s->next;
-                               break;
-                       } else {
-                               path->path = s->next;
-                               break;
+               if (item_is_equal(s->data->item,*item)) {
+                       if (s->data->flags & AF_SEGMENTED)
+                               soffset=RSD_OFFSET(s->data);
+                       else
+                               soffset=1;
+                       if (soffset == offset) {
+                               if (sp) {
+                                       sp->next = s->next;
+                                       break;
+                               } else {
+                                       path->path = s->next;
+                                       break;
+                               }
                        }
                }
                sp = s;
@@ -1057,50 +1217,38 @@ route_path_add_segment(struct route_path *this, struct route_path_segment *segme
 }
 
 /**
- * @brief Adds a new item to a path
+ * @brief Adds a two coordinate line to a path
  *
- * This adds a new item to a path, creating a new segment for it. Please note that this function does not check
- * if the item passed is segmented - it will create exactly one segment.
+ * This adds a new line to a path, creating a new segment for it.
  *
  * @param this The path to add the item to
- * @param item The item to add
+ * @param start coordinate to add to the start of the item. If none should be added, make this NULL.
+ * @param end coordinate to add to the end of the item. If none should be added, make this NULL.
  * @param len The length of the item
- * @param first (Optional) coordinate to add to the start of the item. If none should be added, make this NULL.
- * @param c Pointer to count coordinates of the item.
- * @param cound Number of coordinates in c
- * @param last (Optional) coordinate to add to the end of the item. If none should be added, make this NULL.
- * @param dir Direction to add the coordinates in. Greater than zero means "start with the first coordinate in c", all other values mean "start with the last coordinate in c"
  */
 static void
-route_path_add_item(struct route_path *this, struct item *item, int len, struct coord *first, struct coord *c, int count, struct coord *last, int dir)
+route_path_add_line(struct route_path *this, struct coord *start, struct coord *end, int len)
 {
-       int i,idx=0,ccount=count + (first ? 1:0) + (last ? 1:0);
+       int ccnt=2;
        struct route_path_segment *segment;
-       
-       segment=g_malloc0(sizeof(*segment) + sizeof(struct coord) * ccount);
-       segment->ncoords=ccount;
-       segment->direction=dir;
-       if (first)
-               segment->c[idx++]=*first;
-       if (dir > 0) {
-               for (i = 0 ; i < count ; i++)
-                       segment->c[idx++]=c[i];
-       } else {
-               for (i = 0 ; i < count ; i++)
-                       segment->c[idx++]=c[count-i-1];
-       }
-       if (last)
-               segment->c[idx++]=*last;
-       segment->length=len;
-       if (item)
-               segment->item=*item;
+       int seg_size,seg_dat_size;
+
+       seg_size=sizeof(*segment) + sizeof(struct coord) * ccnt;
+        seg_dat_size=sizeof(struct route_segment_data);
+        segment=g_malloc0(seg_size + seg_dat_size);
+        segment->data=(struct route_segment_data *)((char *)segment+seg_size);
+       segment->ncoords=ccnt;
+       segment->direction=0;
+       segment->c[0]=*start;
+       segment->c[1]=*end;
+       segment->data->len=len;
        route_path_add_segment(this, segment);
 }
 
 /**
  * @brief Inserts a new item into the path
  * 
- * This function does almost the same as "route_apth_add_item()", but identifies
+ * This function does almost the same as "route_path_add_item()", but identifies
  * the item to add by a segment from the route graph. Another difference is that it "copies" the
  * segment from the route graph, i.e. if the item is segmented, only the segment passed in rgs will
  * be added to the route path, not all segments of the item. 
@@ -1112,60 +1260,108 @@ route_path_add_item(struct route_path *this, struct item *item, int len, struct
  * @param this The path to add the item to
  * @param oldpath Old path containing the segment to be added. Speeds up the function, but can be NULL.
  * @param rgs Segment of the route graph that should be "copied" to the route path
- * @param len Length of the item to be added
- * @param offset Offset of rgs within the item it represents
  * @param dir Order in which to add the coordinates. See route_path_add_item()
- * @param straight Indicates if this segment is being entered "straight". See route_check_straight().
+ * @param pos  Information about start point if this is the first segment
+ * @param dst  Information about end point if this is the last segment
  */
-static void
-route_path_add_item_from_graph(struct route_path *this, struct route_path *oldpath,
-                                  struct route_graph_segment *rgs, int len, int offset, int dir, int straight)
+
+static int
+route_path_add_item_from_graph(struct route_path *this, struct route_path *oldpath, struct route_graph_segment *rgs, int dir, struct route_info *pos, struct route_info *dst)
 {
        struct route_path_segment *segment;
-       int i,ccnt = 0;
-       struct coord ca[2048];
-
-       if (oldpath) {
-               ccnt = (int)item_hash_lookup(oldpath->path_hash, &rgs->item);
-               if (ccnt) {
-                       segment = route_extract_segment_from_path(oldpath,
-                                                        &rgs->item, offset);
-                       
-                       if (segment)
+       int i, ccnt, extra=0, ret=1;
+       struct coord *c,*cd,ca[2048];
+       int offset=1;
+       int seg_size,seg_dat_size;
+       if (rgs->data.flags & AF_SEGMENTED) 
+               offset=RSD_OFFSET(&rgs->data);
+
+       dbg(1,"enter (0x%x,0x%x) dir=%d pos=%p dst=%p\n", rgs->data.item.id_hi, rgs->data.item.id_lo, dir, pos, dst);
+       if (oldpath && !pos) {
+               segment=item_hash_lookup(oldpath->path_hash, &rgs->data.item);
+               if (segment && segment->direction == dir) {
+                       segment = route_extract_segment_from_path(oldpath, &rgs->data.item, offset);
+                       if (segment) 
                                goto linkold;
                }
        }
 
-       ccnt = get_item_seg_coords(&rgs->item, ca, 2047, &rgs->start->c, &rgs->end->c);
-       segment= g_malloc0(sizeof(*segment) + sizeof(struct coord) * ccnt);
-       if (!segment) {
-               printf("%s:Out of memory\n", __FUNCTION__);
-               return;
-       }
-       segment->direction=dir;
-       if (dir > 0) {
-               for (i = 0 ; i < ccnt ; i++)
-                       segment->c[i]=ca[i];
+       if (pos) {
+               if (dst) {
+                       extra=2;
+                       if (dst->lenneg >= pos->lenneg) {
+                               dir=1;
+                               ccnt=dst->pos-pos->pos;
+                               c=pos->street->c+pos->pos+1;
+                       } else {
+                               dir=-1;
+                               ccnt=pos->pos-dst->pos;
+                               c=pos->street->c+dst->pos+1;
+                       }
+               } else {
+                       extra=1;
+                       dbg(1,"pos dir=%d\n", dir);
+                       dbg(1,"pos pos=%d\n", pos->pos);
+                       dbg(1,"pos count=%d\n", pos->street->count);
+                       if (dir > 0) {
+                               c=pos->street->c+pos->pos+1;
+                               ccnt=pos->street->count-pos->pos-1;
+                       } else {
+                               c=pos->street->c;
+                               ccnt=pos->pos+1;
+                       }
+               }
+       } else  if (dst) {
+               extra=1;
+               dbg(1,"dst dir=%d\n", dir);
+               dbg(1,"dst pos=%d\n", dst->pos);
+               if (dir > 0) {
+                       c=dst->street->c;
+                       ccnt=dst->pos+1;
+               } else {
+                       c=dst->street->c+dst->pos+1;
+                       ccnt=dst->street->count-dst->pos-1;
+               }
        } else {
-               for (i = 0 ; i < ccnt ; i++)
-                       segment->c[i]=ca[ccnt-i-1];
+               ccnt=get_item_seg_coords(&rgs->data.item, ca, 2047, &rgs->start->c, &rgs->end->c);
+               c=ca;
        }
-       segment->ncoords = ccnt;
+       seg_size=sizeof(*segment) + sizeof(struct coord) * (ccnt + extra);
+       seg_dat_size=route_segment_data_size(rgs->data.flags);
+       segment=g_malloc0(seg_size + seg_dat_size);
+       segment->data=(struct route_segment_data *)((char *)segment+seg_size);
+       segment->direction=dir;
+       cd=segment->c;
+       if (pos && (c[0].x != pos->lp.x || c[0].y != pos->lp.y))
+               *cd++=pos->lp;
+       if (dir < 0)
+               c+=ccnt-1;
+       for (i = 0 ; i < ccnt ; i++) {
+               *cd++=*c;
+               c+=dir; 
+       }
+       segment->ncoords+=ccnt;
+       if (dst && (cd[-1].x != dst->lp.x || cd[-1].y != dst->lp.y)) 
+               *cd++=dst->lp;
+       segment->ncoords=cd-segment->c;
 
        /* We check if the route graph segment is part of a roundabout here, because this
         * only matters for route graph segments which form parts of the route path */
-       if (!(rgs->flags & AF_ROUNDABOUT)) { // We identified this roundabout earlier
+       if (!(rgs->data.flags & AF_ROUNDABOUT)) { // We identified this roundabout earlier
                route_check_roundabout(rgs, 13, (dir < 1), NULL);
        }
 
-       segment->item=rgs->item;
-       segment->offset = offset;
+       ret=0;
+       memcpy(segment->data, &rgs->data, seg_dat_size);
+
 linkold:
-       segment->length=len;
+       segment->data->len=rgs->data.len;
        segment->next=NULL;
-       item_hash_insert(this->path_hash,  &rgs->item, (void *)ccnt);
+       item_hash_insert(this->path_hash,  &rgs->data.item, segment);
 
        route_path_add_segment(this, segment);
+
+       return ret;
 }
 
 /**
@@ -1195,6 +1391,7 @@ static void
 route_graph_destroy(struct route_graph *this)
 {
        if (this) {
+               route_graph_build_done(this, 1);
                route_graph_free_points(this);
                route_graph_free_segments(this);
                g_free(this);
@@ -1204,44 +1401,49 @@ route_graph_destroy(struct route_graph *this)
 /**
  * @brief Returns the time needed to drive len on item
  *
- * @param speedlist The speedlist that should be used
- * @param item The item to be driven on
- * @param len The length to drive
- * @return The time needed to drive len on item
+ * This function returns the time needed to drive len meters on 
+ * the item passed in item in tenth of seconds.
+ *
+ * @param preferences The routing preferences
+ * @param over The segment which is passed
+ * @return The time needed to drive len on item in thenth of senconds
  */
-int
-route_time(int *speedlist, struct item *item, int len)
+
+static int
+route_time_seg(struct route_preferences *preferences, struct route_segment_data *over)
 {
-       if (item->type < route_item_first || item->type > route_item_last) {
-               dbg(0,"street type %d out of range [%d,%d]\n", item->type, route_item_first, route_item_last);
-               return len*36;
-       }
-       if (!speedlist[item->type-route_item_first]) {
-               dbg(0,"street type %d speed is zero\n", item->type);
-               return len*36;
-       }
-       return len*36/speedlist[item->type-route_item_first];
+       int pspeed=preferences->speedlist[over->item.type-route_item_first];
+       int speed=pspeed;
+       if (preferences->maxspeed_handling != 2 && (over->flags & AF_SPEED_LIMIT)) {
+               speed=RSD_MAXSPEED(over);
+               if (preferences->maxspeed_handling == 1 && speed > pspeed)
+                       speed=pspeed;
+       } else
+               speed=preferences->speedlist[over->item.type-route_item_first];
+       if (!speed)
+               return INT_MAX; 
+       return over->len*36/speed;
 }
 
 /**
- * @brief Returns the "costs" of driving len on item
+ * @brief Returns the "costs" of driving from point from over segment over in direction dir
  *
- * @param speedlist The speedlist that should be used
- * @param item The item to be driven on
- * @param len The length to drive
+ * @param preferences The routing preferences
+ * @param from The point where we are starting
+ * @param over The segment we are using
+ * @param dir The direction of segment which we are driving
  * @return The "costs" needed to drive len on item
  */  
+
 static int
-route_value(int *speedlist, struct item *item, int len)
+route_value_seg(struct route_preferences *preferences, struct route_graph_point *from, struct route_segment_data *over, int dir)
 {
-       int ret;
-       if (len < 0) {
-               printf("len=%d\n", len);
-       }
-       dbg_assert(len >= 0);
-       ret=route_time(speedlist, item, len);
-       dbg(1, "route_value(0x%x, %d)=%d\n", item->type, len, ret);
-       return ret;
+#if 0
+       dbg(0,"flags 0x%x mask 0x%x flags 0x%x\n", over->flags, dir >= 0 ? preferences->flags_forward_mask : preferences->flags_reverse_mask, preferences->flags);
+#endif
+       if ((over->flags & (dir >= 0 ? preferences->flags_forward_mask : preferences->flags_reverse_mask)) != preferences->flags)
+               return INT_MAX;
+       return route_time_seg(preferences, over);
 }
 
 /**
@@ -1263,17 +1465,27 @@ route_process_street_graph(struct route_graph *this, struct item *item)
 #endif
        struct route_graph_point *s_pnt,*e_pnt;
        struct coord c,l;
-       struct attr attr;
+       struct attr flags_attr, maxspeed_attr;
        int flags = 0;
        int segmented = 0;
        int offset = 1;
-
+       int maxspeed = -1;
+       
        if (item_coord_get(item, &l, 1)) {
-               if (item_attr_get(item, attr_flags, &attr)) {
-                       flags = attr.u.num;
+               if (item_attr_get(item, attr_flags, &flags_attr)) {
+                       flags = flags_attr.u.num;
                        if (flags & AF_SEGMENTED)
                                segmented = 1;
+               } else
+                       flags = default_flags[item->type-route_item_first];
+               
+
+               if (flags & AF_SPEED_LIMIT) {
+                       if (item_attr_get(item, attr_maxspeed, &maxspeed_attr)) {
+                               maxspeed = maxspeed_attr.u.num;
+                       }
                }
+
                s_pnt=route_graph_add_point(this,&l);
                if (!segmented) {
                        while (item_coord_get(item, &c, 1)) {
@@ -1282,7 +1494,7 @@ route_process_street_graph(struct route_graph *this, struct item *item)
                        }
                        e_pnt=route_graph_add_point(this,&l);
                        dbg_assert(len >= 0);
-                       route_graph_add_segment(this, s_pnt, e_pnt, len, item, flags, offset);
+                       route_graph_add_segment(this, s_pnt, e_pnt, len, item, flags, offset, maxspeed);
                } else {
                        int isseg,rc;
                        int sc = 0;
@@ -1294,7 +1506,7 @@ route_process_street_graph(struct route_graph *this, struct item *item)
                                        l=c;
                                        if (isseg) {
                                                e_pnt=route_graph_add_point(this,&l);
-                                               route_graph_add_segment(this, s_pnt, e_pnt, len, item, flags, offset);
+                                               route_graph_add_segment(this, s_pnt, e_pnt, len, item, flags, offset, maxspeed);
                                                offset++;
                                                s_pnt=route_graph_add_point(this,&l);
                                                len = 0;
@@ -1304,7 +1516,7 @@ route_process_street_graph(struct route_graph *this, struct item *item)
                        e_pnt=route_graph_add_point(this,&l);
                        dbg_assert(len >= 0);
                        sc++;
-                       route_graph_add_segment(this, s_pnt, e_pnt, len, item, flags, offset);
+                       route_graph_add_segment(this, s_pnt, e_pnt, len, item, flags, offset, maxspeed);
                }
        }
 }
@@ -1330,6 +1542,20 @@ compare(void *v1, void *v2)
        return p1->value-p2->value;
 }
 
+static struct route_graph_segment *
+route_graph_get_segment(struct route_graph *graph, struct street_data *sd)
+{
+       struct route_graph_point *start=route_graph_get_point(graph, &sd->c[0]);
+       struct route_graph_segment *s;
+       s=start->start;
+       while (s) {
+               if (item_is_equal(sd->item, s->data.item))
+                       return s;
+               s=s->start_next;
+       }
+       return NULL;
+}
+
 /**
  * @brief Calculates the routing costs for each point
  *
@@ -1342,32 +1568,36 @@ compare(void *v1, void *v2)
  * at this algorithm.
  */
 static void
-route_graph_flood(struct route_graph *this, struct route_info *dst, int *speedlist)
+route_graph_flood(struct route_graph *this, struct route_info *dst, struct route_preferences *preferences, struct callback *cb)
 {
-       struct route_graph_point *p_min,*end=NULL;
+       struct route_graph_point *p_min;
        struct route_graph_segment *s;
        int min,new,old,val;
        struct fibheap *heap; /* This heap will hold all points with "temporarily" calculated costs */
-       struct street_data *sd=dst->street;
 
        heap = fh_makeheap();   
        fh_setcmp(heap, compare);
+       
 
-       if (! (sd->flags & AF_ONEWAYREV)) { /* If we may drive in the direction of the coordinates of the item, the first coordinate is one starting point */
-               end=route_graph_get_point(this, &sd->c[0]);
-               dbg_assert(end != 0);
-               end->value=route_value(speedlist, &sd->item, dst->lenneg);
-               end->el=fh_insert(heap, end);
+       s=route_graph_get_segment(this, dst->street);
+       if (!s) {
+               dbg(0,"no segment for destination found\n");
+               return;
        }
-
-       if (! (sd->flags & AF_ONEWAY)) { /* If we may drive against the direction of the coordinates, the last coordinate is another starting point */
-               end=route_graph_get_point(this, &sd->c[sd->count-1]);
-               dbg_assert(end != 0);
-               end->value=route_value(speedlist, &sd->item, dst->lenpos);
-               end->el=fh_insert(heap, end);
+       val=route_value_seg(preferences, NULL, &s->data, 1);
+       if (val != INT_MAX) {
+               val=val*(100-dst->percent)/100;
+               s->end->seg=s;
+               s->end->value=val;
+               s->end->el=fh_insert(heap, s->end);
+       }
+       val=route_value_seg(preferences, NULL, &s->data, -1);
+       if (val != INT_MAX) {
+               val=val*dst->percent/100;
+               s->start->seg=s;
+               s->start->value=val;
+               s->start->el=fh_insert(heap, s->start);
        }
-
-       dbg(1,"0x%x,0x%x\n", end->c.x, end->c.y);
        for (;;) {
                p_min=fh_extractmin(heap); /* Starting Dijkstra by selecting the point with the minimum costs on the heap */
                if (! p_min) /* There are no more points with temporarily calculated costs, Dijkstra has finished */
@@ -1378,62 +1608,65 @@ route_graph_flood(struct route_graph *this, struct route_info *dst, int *speedli
                p_min->el=NULL; /* This point is permanently calculated now, we've taken it out of the heap */
                s=p_min->start;
                while (s) { /* Iterating all the segments leading away from our point to update the points at their ends */
-                       val=route_value(speedlist, &s->item, s->len);
-#if 0
-                       val+=val*2*street_route_contained(s->str->segid);
-#endif
-                       new=min+val;
-                       if (debug_route)
-                               printf("begin %d len %d vs %d (0x%x,0x%x)\n",new,val,s->end->value, s->end->c.x, s->end->c.y);
-                       if (new < s->end->value && !(s->flags & AF_ONEWAY)) { /* We've found a less costly way to reach the end of s, update it */
-                               s->end->value=new;
-                               s->end->seg=s;
-                               if (! s->end->el) {
-                                       if (debug_route)
-                                               printf("insert_end p=%p el=%p val=%d ", s->end, s->end->el, s->end->value);
-                                       s->end->el=fh_insert(heap, s->end);
-                                       if (debug_route)
-                                               printf("el new=%p\n", s->end->el);
-                               }
-                               else {
-                                       if (debug_route)
-                                               printf("replace_end p=%p el=%p val=%d\n", s->end, s->end->el, s->end->value);
-                                       fh_replacedata(heap, s->end->el, s->end);
+                       val=route_value_seg(preferences, p_min, &s->data, -1);
+                       if (val != INT_MAX) {
+                               new=min+val;
+                               if (debug_route)
+                                       printf("begin %d len %d vs %d (0x%x,0x%x)\n",new,val,s->end->value, s->end->c.x, s->end->c.y);
+                               if (new < s->end->value) { /* We've found a less costly way to reach the end of s, update it */
+                                       s->end->value=new;
+                                       s->end->seg=s;
+                                       if (! s->end->el) {
+                                               if (debug_route)
+                                                       printf("insert_end p=%p el=%p val=%d ", s->end, s->end->el, s->end->value);
+                                               s->end->el=fh_insert(heap, s->end);
+                                               if (debug_route)
+                                                       printf("el new=%p\n", s->end->el);
+                                       }
+                                       else {
+                                               if (debug_route)
+                                                       printf("replace_end p=%p el=%p val=%d\n", s->end, s->end->el, s->end->value);
+                                               fh_replacedata(heap, s->end->el, s->end);
+                                       }
                                }
+                               if (debug_route)
+                                       printf("\n");
                        }
-                       if (debug_route)
-                               printf("\n");
                        s=s->start_next;
                }
                s=p_min->end;
                while (s) { /* Doing the same as above with the segments leading towards our point */
-                       val=route_value(speedlist, &s->item, s->len);
-                       new=min+val;
-                       if (debug_route)
-                               printf("end %d len %d vs %d (0x%x,0x%x)\n",new,val,s->start->value,s->start->c.x, s->start->c.y);
-                       if (new < s->start->value && !(s->flags & AF_ONEWAYREV)) {
-                               old=s->start->value;
-                               s->start->value=new;
-                               s->start->seg=s;
-                               if (! s->start->el) {
-                                       if (debug_route)
-                                               printf("insert_start p=%p el=%p val=%d ", s->start, s->start->el, s->start->value);
-                                       s->start->el=fh_insert(heap, s->start);
-                                       if (debug_route)
-                                               printf("el new=%p\n", s->start->el);
-                               }
-                               else {
-                                       if (debug_route)
-                                               printf("replace_start p=%p el=%p val=%d\n", s->start, s->start->el, s->start->value);
-                                       fh_replacedata(heap, s->start->el, s->start);
+                       val=route_value_seg(preferences, p_min, &s->data, 1);
+                       if (val != INT_MAX) {
+                               new=min+val;
+                               if (debug_route)
+                                       printf("end %d len %d vs %d (0x%x,0x%x)\n",new,val,s->start->value,s->start->c.x, s->start->c.y);
+                               if (new < s->start->value) {
+                                       old=s->start->value;
+                                       s->start->value=new;
+                                       s->start->seg=s;
+                                       if (! s->start->el) {
+                                               if (debug_route)
+                                                       printf("insert_start p=%p el=%p val=%d ", s->start, s->start->el, s->start->value);
+                                               s->start->el=fh_insert(heap, s->start);
+                                               if (debug_route)
+                                                       printf("el new=%p\n", s->start->el);
+                                       }
+                                       else {
+                                               if (debug_route)
+                                                       printf("replace_start p=%p el=%p val=%d\n", s->start, s->start->el, s->start->value);
+                                               fh_replacedata(heap, s->start->el, s->start);
+                                       }
                                }
+                               if (debug_route)
+                                       printf("\n");
                        }
-                       if (debug_route)
-                               printf("\n");
                        s=s->end_next;
                }
        }
        fh_deleteheap(heap);
+       callback_call_0(cb);
+       dbg(1,"return\n");
 }
 
 /**
@@ -1449,53 +1682,72 @@ route_graph_flood(struct route_graph *this, struct route_info *dst, int *speedli
  * @return The new path
  */
 static struct route_path *
-route_path_new_offroad(struct route_graph *this, struct route_info *pos, struct route_info *dst, int dir)
+route_path_new_offroad(struct route_graph *this, struct route_info *pos, struct route_info *dst)
 {
        struct route_path *ret;
 
        ret=g_new0(struct route_path, 1);
        ret->path_hash=item_hash_new();
-       route_path_add_item(ret, NULL, pos->lenextra+dst->lenextra, &pos->c, NULL, 0, &dst->c, 1);
+       route_path_add_line(ret, &pos->c, &dst->c, pos->lenextra+dst->lenextra);
+       ret->updated=1;
 
        return ret;
 }
 
 /**
- * @brief Creates a new "trivial" route
- * 
- * This function creates a new "trivial" route. A trivial route is a route that starts and ends on the same street,
- * so there is no routing needed. Depending on pos and dst it can optionally add some "offroad" part to the route.
+ * @brief Returns a coordinate at a given distance
  *
- * @param this The route graph to place the route on
- * @param pos The starting position for the new path
- * @param dst The destination of the new path
- * @param dir Direction of the coordinates to be added
- * @return The new path
+ * This function returns the coordinate, where the user will be if he
+ * follows the current route for a certain distance.
+ *
+ * @param this_ The route we're driving upon
+ * @param dist The distance in meters
+ * @return The coordinate where the user will be in that distance
  */
-static struct route_path *
-route_path_new_trivial(struct route_graph *this, struct route_info *pos, struct route_info *dst, int dir)
+struct coord 
+route_get_coord_dist(struct route *this_, int dist)
 {
-       struct street_data *sd=pos->street;
-       struct route_path *ret;
+       int d,l,i,len;
+       int dx,dy;
+       double frac;
+       struct route_path_segment *cur;
+       struct coord ret;
+       enum projection pro=route_projection(this_);
 
-       if (dir > 0) {
-               if (pos->lenextra + dst->lenextra + pos->lenneg-dst->lenneg > transform_distance(map_projection(sd->item.map), &pos->c, &dst->c))
-                       return route_path_new_offroad(this, pos, dst, dir);
-       } else {
-               if (pos->lenextra + dst->lenextra + pos->lenpos-dst->lenpos > transform_distance(map_projection(sd->item.map), &pos->c, &dst->c))
-                       return route_path_new_offroad(this, pos, dst, dir);
+       d = dist;
+
+       if (!this_->path2 || pro == projection_none) {
+               return this_->pos->c;
        }
-       ret=g_new0(struct route_path, 1);
-       ret->path_hash=item_hash_new();
-       if (pos->lenextra) 
-               route_path_add_item(ret, NULL, pos->lenextra, &pos->c, NULL, 0, &pos->lp, 1);
-       if (dir > 0)
-               route_path_add_item(ret, &sd->item, pos->lenpos-dst->lenpos, &pos->lp, sd->c+pos->pos+1, dst->pos+pos->pos, &dst->lp, 1);
-       else
-               route_path_add_item(ret, &sd->item, pos->lenneg-dst->lenneg, &pos->lp, sd->c+dst->pos+1, pos->pos-dst->pos, &dst->lp, -1);
-       if (dst->lenextra) 
-               route_path_add_item(ret, NULL, dst->lenextra, &dst->lp, NULL, 0, &dst->c, 1);
-       return ret;
+       
+       ret = this_->pos->c;
+       cur = this_->path2->path;
+       while (cur) {
+               if (cur->data->len < d) {
+                       d -= cur->data->len;
+               } else {
+                       for (i=0; i < (cur->ncoords-1); i++) {
+                               l = d;
+                               len = (int)transform_polyline_length(pro, (cur->c + i), 2);
+                               d -= len;
+                               if (d <= 0) { 
+                                       // We interpolate a bit here...
+                                       frac = (double)l / len;
+                                       
+                                       dx = (cur->c + i + 1)->x - (cur->c + i)->x;
+                                       dy = (cur->c + i + 1)->y - (cur->c + i)->y;
+                                       
+                                       ret.x = (cur->c + i)->x + (frac * dx);
+                                       ret.y = (cur->c + i)->y + (frac * dy);
+                                       return ret;
+                               }
+                       }
+                       return cur->c[(cur->ncoords-1)];
+               }
+               cur = cur->next;
+       }
+
+       return this_->dst->c;
 }
 
 /**
@@ -1508,104 +1760,143 @@ route_path_new_trivial(struct route_graph *this, struct route_info *pos, struct
  * @param oldpath (Optional) old path which may contain parts of the new part - this speeds things up a bit. May be NULL.
  * @param pos The starting position of the route
  * @param dst The destination of the route
- * @param speedlist The speedlist to use
+ * @param preferences The routing preferences
  * @return The new route path
  */
 static struct route_path *
-route_path_new(struct route_graph *this, struct route_path *oldpath, struct route_info *pos, struct route_info *dst, int *speedlist)
-{
-       struct route_graph_point *start1=NULL,*start2=NULL,*start;
-       struct route_graph_segment *s=NULL;
-       struct route_graph_segment *lastseg = NULL;
-       int is_straight=0;
-       int len=0,segs=0;
-       int seg_len;
-#if 0
-       int time=0,hr,min,sec
-#endif
-       unsigned int val1=0xffffffff,val2=0xffffffff;
-       struct street_data *sd=pos->street;
+route_path_new(struct route_graph *this, struct route_path *oldpath, struct route_info *pos, struct route_info *dst, struct route_preferences *preferences)
+{
+       struct route_graph_segment *first,*s=NULL;
+       struct route_graph_point *start;
+       struct route_info *posinfo, *dstinfo;
+       int segs=0;
+       int val1=INT_MAX,val2=INT_MAX;
+       int val;
        struct route_path *ret;
 
-       if (item_is_equal(pos->street->item, dst->street->item)) { /* We probably don't have to leave this street and can use a trivial route */
-               if (!(sd->flags & AF_ONEWAY) && pos->lenneg >= dst->lenneg) {
-                       return route_path_new_trivial(this, pos, dst, -1);
-               }
-               if (!(sd->flags & AF_ONEWAYREV) && pos->lenpos >= dst->lenpos) {
-                       return route_path_new_trivial(this, pos, dst, 1);
-               }
-       } 
-       if (! (sd->flags & AF_ONEWAY)) { /* Using the start of the current segment as one starting point */
-               start1=route_graph_get_point(this, &sd->c[0]);
-               if (! start1)
-                       return NULL;
-               val1=start1->value+route_value(speedlist, &sd->item, pos->lenneg);
-               dbg(1,"start1: %d(route)+%d=%d\n", start1->value, val1-start1->value, val1);
+       if (! pos->street || ! dst->street)
+               return NULL;
+
+       if (preferences->mode == 2 || (preferences->mode == 0 && pos->lenextra + dst->lenextra + pos->lenpos-dst->lenpos > transform_distance(map_projection(pos->street->item.map), &pos->c, &dst->c)))
+               return route_path_new_offroad(this, pos, dst);
+       
+       s=route_graph_get_segment(this, pos->street);
+       if (!s) {
+               dbg(0,"no segment for position found\n");
+               return NULL;
        }
-       if (! (sd->flags & AF_ONEWAYREV)) { /* Using the start of the current segment as an alternative starting point */
-               start2=route_graph_get_point(this, &sd->c[sd->count-1]);
-               if (! start2)
-                       return NULL;
-               val2=start2->value+route_value(speedlist, &sd->item, pos->lenpos);
-               dbg(1,"start2: %d(route)+%d=%d\n", start2->value, val2-start2->value, val2);
+       val=route_value_seg(preferences, NULL, &s->data, -1);
+       if (val != INT_MAX) {
+               val=val*(100-pos->percent)/100;
+               val1=s->end->value+val;
+       }
+       val=route_value_seg(preferences, NULL, &s->data, 1);
+       if (val != INT_MAX) {
+               val=val*pos->percent/100;
+               val2=s->start->value+val;
+       }
+       if (val1 == INT_MAX && val2 == INT_MAX) {
+               dbg(0,"no route found, pos blocked\n");
+               return NULL;
        }
-       dbg(1,"val1=%d val2=%d\n", val1, val2);
        if (val1 == val2) {
-               val1=start1->start->start->value;
-               val2=start2->end->end->value;
+               val1=s->end->value;
+               val2=s->start->value;
        }
+       if (val1 < val2) 
+               start=s->start;
+       else 
+               start=s->end;
        ret=g_new0(struct route_path, 1);
+       ret->updated=1;
        if (pos->lenextra) 
-               route_path_add_item(ret, NULL, pos->lenextra, &pos->c, NULL, 0, &pos->lp, 1);
-       if (start1 && (val1 < val2)) {
-               start=start1;
-               route_path_add_item(ret, &sd->item, pos->lenneg, &pos->lp, sd->c, pos->pos+1, NULL, -1);
-       } else {
-               if (start2) {
-                       start=start2;
-                       route_path_add_item(ret, &sd->item, pos->lenpos, &pos->lp, sd->c+pos->pos+1, sd->count-pos->pos-1, NULL, 1);
-               } else {
-                       printf("no route found, pos blocked\n");
-                       return NULL;
-               }
-       }
+               route_path_add_line(ret, &pos->c, &pos->lp, pos->lenextra);
        ret->path_hash=item_hash_new();
-       while ((s=start->seg)) { /* following start->seg, which indicates the least costly way to reach our destination */
+       dstinfo=NULL;
+       posinfo=pos;
+       first=s;
+       while (s && !dstinfo) { /* following start->seg, which indicates the least costly way to reach our destination */
                segs++;
 #if 0
                printf("start->value=%d 0x%x,0x%x\n", start->value, start->c.x, start->c.y);
 #endif
-               seg_len=s->len;
-               len+=seg_len;
-       
                if (s->start == start) {                
-                       route_path_add_item_from_graph(ret, oldpath, s, seg_len, s->offset, 1, is_straight);
+                       if (item_is_equal(s->data.item, dst->street->item) && (s->end->seg == s || !posinfo))
+                               dstinfo=dst;
+                       if (!route_path_add_item_from_graph(ret, oldpath, s, 1, posinfo, dstinfo))
+                               ret->updated=0;
                        start=s->end;
                } else {
-                       route_path_add_item_from_graph(ret, oldpath, s, seg_len, s->offset, -1, is_straight);
+                       if (item_is_equal(s->data.item, dst->street->item) && (s->start->seg == s || !posinfo))
+                               dstinfo=dst;
+                       if (!route_path_add_item_from_graph(ret, oldpath, s, -1, posinfo, dstinfo))
+                               ret->updated=0;
                        start=s->start;
                }
-
-               lastseg = s;
-       }
-       sd=dst->street;
-       dbg(1,"start->value=%d 0x%x,0x%x\n", start->value, start->c.x, start->c.y);
-       dbg(1,"dst sd->flags=%d sd->c[0]=0x%x,0x%x sd->c[sd->count-1]=0x%x,0x%x\n", sd->flags, sd->c[0].x,sd->c[0].y, sd->c[sd->count-1].x, sd->c[sd->count-1].y);
-       if (start->c.x == sd->c[0].x && start->c.y == sd->c[0].y) { /* Adding a final segment to reach the destination within the destination street */
-               route_path_add_item(ret, &sd->item, dst->lenneg, NULL, sd->c, dst->pos+1, &dst->lp, 1);
-       } else if (start->c.x == sd->c[sd->count-1].x && start->c.y == sd->c[sd->count-1].y) {
-               route_path_add_item(ret, &sd->item, dst->lenpos, NULL, sd->c+dst->pos+1, sd->count-dst->pos-1, &dst->lp, -1);
-       } else {
-               printf("no route found\n");
-               route_path_destroy(ret);
-               return NULL;
+               posinfo=NULL;
+               s=start->seg;
        }
        if (dst->lenextra) 
-               route_path_add_item(ret, NULL, dst->lenextra, &dst->lp, NULL, 0, &dst->c, 1);
+               route_path_add_line(ret, &dst->lp, &dst->c, dst->lenextra);
        dbg(1, "%d segments\n", segs);
        return ret;
 }
 
+static int
+route_graph_build_next_map(struct route_graph *rg)
+{
+       do {
+               rg->m=mapset_next(rg->h, 1);
+               if (! rg->m)
+                       return 0;
+               map_rect_destroy(rg->mr);
+               rg->mr=map_rect_new(rg->m, rg->sel);
+       } while (!rg->mr);
+               
+       return 1;
+}
+
+static void
+route_graph_build_done(struct route_graph *rg, int cancel)
+{
+       dbg(1,"cancel=%d\n",cancel);
+       event_remove_idle(rg->idle_ev);
+       callback_destroy(rg->idle_cb);
+       map_rect_destroy(rg->mr);
+        mapset_close(rg->h);
+       route_free_selection(rg->sel);
+       rg->idle_ev=NULL;
+       rg->idle_cb=NULL;
+       rg->mr=NULL;
+       rg->h=NULL;
+       rg->sel=NULL;
+       if (! cancel)
+               callback_call_0(rg->done_cb);
+       rg->busy=0;
+}
+
+static void
+route_graph_build_idle(struct route_graph *rg)
+{
+       int count=1000;
+       struct item *item;
+
+       while (count > 0) {
+               for (;;) {      
+                       item=map_rect_get_item(rg->mr);
+                       if (item)
+                               break;
+                       if (!route_graph_build_next_map(rg)) {
+                               route_graph_build_done(rg, 0);
+                               return;
+                       }
+               }
+               if (item->type >= route_item_first && item->type <= route_item_last) 
+                       route_process_street_graph(rg, item);
+               count--;
+       }
+}
+
 /**
  * @brief Builds a new route graph from a mapset
  *
@@ -1619,41 +1910,35 @@ route_path_new(struct route_graph *this, struct route_path *oldpath, struct rout
  * @param ms The mapset to build the route graph from
  * @param c1 Corner 1 of the rectangle to use from the map
  * @param c2 Corner 2 of the rectangle to use from the map
+ * @param done_cb The callback which will be called when graph is complete
  * @return The new route graph.
  */
 static struct route_graph *
-route_graph_build(struct mapset *ms, struct coord *c1, struct coord *c2)
+route_graph_build(struct mapset *ms, struct coord *c1, struct coord *c2, struct callback *done_cb)
 {
        struct route_graph *ret=g_new0(struct route_graph, 1);
-       struct map_selection *sel;
-       struct mapset_handle *h;
-       struct map_rect *mr;
-       struct map *m;
-       struct item *item;
 
-       if (!ret) {
-               printf("%s:Out of memory\n", __FUNCTION__);
-               return ret;
-       }
-       sel=route_calc_selection(c1, c2);
-       h=mapset_open(ms);
-       while ((m=mapset_next(h,1))) {
-               mr=map_rect_new(m, sel);
-               if (! mr)
-                       continue;
-               while ((item=map_rect_get_item(mr))) {
-                       if (item->type >= type_street_0 && item->type <= type_ferry) {
-                               route_process_street_graph(ret, item);
-                       }
-               }
-               map_rect_destroy(mr);
-        }
-        mapset_close(h);
-       route_free_selection(sel);
+       dbg(1,"enter\n");
+
+       ret->sel=route_calc_selection(c1, c2);
+       ret->h=mapset_open(ms);
+       ret->done_cb=done_cb;
+       ret->busy=1;
+       if (route_graph_build_next_map(ret)) {
+               ret->idle_cb=callback_new_1(callback_cast(route_graph_build_idle), ret);
+               ret->idle_ev=event_add_idle(50, ret->idle_cb);
+       } else
+               route_graph_build_done(ret, 0);
 
        return ret;
 }
 
+static void
+route_graph_update_done(struct route *this, struct callback *cb)
+{
+       route_graph_flood(this->graph, this->dst, &this->preferences, cb);
+}
+
 /**
  * @brief Updates the route graph
  *
@@ -1663,15 +1948,13 @@ route_graph_build(struct mapset *ms, struct coord *c1, struct coord *c2)
  * @param this The route to update the graph for
  */
 static void
-route_graph_update(struct route *this)
+route_graph_update(struct route *this, struct callback *cb)
 {
        route_graph_destroy(this->graph);
-       profile(1,"graph_free");
-       this->graph=route_graph_build(this->ms, &this->pos->c, &this->dst->c);
-       profile(1,"route_graph_build");
-       route_graph_flood(this->graph, this->dst, this->speedlist);
-       profile(1,"route_graph_flood");
-       this->version++;
+       callback_destroy(this->route_graph_done_cb);
+       this->route_graph_done_cb=callback_new_2(callback_cast(route_graph_update_done), this, cb);
+       callback_list_call_attr_1(this->cbl, attr_route, (void *)0);
+       this->graph=route_graph_build(this->ms, &this->pos->c, &this->dst->c, this->route_graph_done_cb);
 }
 
 /**
@@ -1685,7 +1968,7 @@ street_get_data (struct item *item)
 {
        int count=0;
        struct street_data *ret = NULL, *ret1;
-       struct attr attr;
+       struct attr flags_attr, maxspeed_attr;
        const int step = 128;
        int c;
 
@@ -1706,11 +1989,18 @@ street_get_data (struct item *item)
                ret = ret1;
        ret->item=*item;
        ret->count=count;
-       if (item_attr_get(item, attr_flags, &attr)) 
-               ret->flags=attr.u.num;
+       if (item_attr_get(item, attr_flags, &flags_attr)) 
+               ret->flags=flags_attr.u.num;
        else
                ret->flags=0;
 
+       ret->maxspeed = -1;
+       if (ret->flags & AF_SPEED_LIMIT) {
+               if (item_attr_get(item, attr_maxspeed, &maxspeed_attr)) {
+                       ret->maxspeed = maxspeed_attr.u.num;
+               }
+       }
+
        return ret;
 }
 
@@ -1767,10 +2057,6 @@ route_find_nearest_street(struct mapset *ms, struct pcoord *pc)
        struct coord_geo g;
 
        ret=g_new0(struct route_info, 1);
-       if (!ret) {
-               dbg(0,"Out of memory\n");
-               return ret;
-       }
        mindist = INT_MAX;
 
        h=mapset_open(ms);
@@ -1790,7 +2076,7 @@ route_find_nearest_street(struct mapset *ms, struct pcoord *pc)
                        continue;
                }
                while ((item=map_rect_get_item(mr))) {
-                       if (item->type >= type_street_0 && item->type <= type_ferry) {
+                       if (item->type >= route_item_first && item->type <= route_item_last) {
                                sd=street_get_data(item);
                                if (!sd)
                                        continue;
@@ -1892,6 +2178,7 @@ struct map_rect_priv {
        struct item item;
        int length;
        unsigned int last_coord;
+       struct route_path *path;
        struct route_path_segment *seg,*seg_next;
        struct route_graph_point *point;
        struct route_graph_segment *rseg;
@@ -1920,6 +2207,8 @@ rm_attr_get(void *priv_data, enum attr_type attr_type, struct attr *attr)
        struct map_rect_priv *mr = priv_data;
        struct route_path_segment *seg=mr->seg;
        struct route *route=mr->mpriv->route;
+       if (mr->item.type != type_street_route)
+               return 0;
        attr->type=attr_type;
        switch (attr_type) {
                case attr_any:
@@ -1928,10 +2217,19 @@ rm_attr_get(void *priv_data, enum attr_type attr_type, struct attr *attr)
                                        return 1;
                        }
                        return 0;
+               case attr_maxspeed:
+                       mr->attr_next = attr_street_item;
+                       if (seg && seg->data->flags && AF_SPEED_LIMIT) {
+                               attr->u.num=RSD_MAXSPEED(seg->data);
+
+                       } else {
+                               return 0;
+                       }
+                       return 1;
                case attr_street_item:
                        mr->attr_next=attr_direction;
-                       if (seg && seg->item.map)
-                               attr->u.item=&seg->item;
+                       if (seg && seg->data->item.map)
+                               attr->u.item=&seg->data->item;
                        else
                                return 0;
                        return 1;
@@ -1948,16 +2246,16 @@ rm_attr_get(void *priv_data, enum attr_type attr_type, struct attr *attr)
                        return 1;
                case attr_length:
                        if (seg)
-                               attr->u.num=seg->length;
+                               attr->u.num=seg->data->len;
                        else
                                attr->u.num=mr->length;
                        mr->attr_next=attr_time;
                        return 1;
                case attr_time:
                        mr->attr_next=attr_none;
-                       if (seg)
-                               attr->u.num=route_time(route->speedlist, &seg->item, seg->length);
-                       else
+                       if (seg) {
+                               attr->u.num=route_time_seg(&route->preferences, seg->data);
+                       else
                                return 0;
                        return 1;
                case attr_label:
@@ -1980,6 +2278,18 @@ rm_coord_get(void *priv_data, struct coord *c, int count)
        struct route *r = mr->mpriv->route;
        enum projection pro = route_projection(r);
 
+       if (pro == projection_none)
+               return 0;
+       if (mr->item.type == type_route_start || mr->item.type == type_route_end) {
+               if (! count || mr->last_coord)
+                       return 0;
+               mr->last_coord=1;
+               if (mr->item.type == type_route_start)
+                       c[0]=r->pos->c;
+               else
+                       c[0]=r->dst->c;
+               return 1;
+       }
        if (! seg)
                return 0;
        for (i=0; i < count; i++) {
@@ -2027,6 +2337,17 @@ rp_attr_get(void *priv_data, enum attr_type attr_type, struct attr *attr)
                                return 1;
                }
                return 0;
+       case attr_maxspeed:
+               mr->attr_next = attr_label;
+               if (mr->item.type != type_rg_segment) 
+                       return 0;
+               if (seg && (seg->data.flags & AF_SPEED_LIMIT)) {
+                       attr->type = attr_maxspeed;
+                       attr->u.num=RSD_MAXSPEED(&seg->data);
+                       return 1;
+               } else {
+                       return 0;
+               }
        case attr_label:
                if (mr->item.type != type_rg_point) 
                        return 0;
@@ -2044,8 +2365,8 @@ rp_attr_get(void *priv_data, enum attr_type attr_type, struct attr *attr)
                if (mr->item.type != type_rg_segment) 
                        return 0;
                mr->attr_next=attr_none;
-               if (seg && seg->item.map)
-                       attr->u.item=&seg->item;
+               if (seg && seg->data.item.map)
+                       attr->u.item=&seg->data.item;
                else
                        return 0;
                return 1;
@@ -2054,7 +2375,7 @@ rp_attr_get(void *priv_data, enum attr_type attr_type, struct attr *attr)
                        return 0;
                mr->attr_next = attr_none;
                if (seg) {
-                       attr->u.num = seg->flags;
+                       attr->u.num = seg->data.flags;
                } else {
                        return 0;
                }
@@ -2107,6 +2428,8 @@ rp_coord_get(void *priv_data, struct coord *c, int count)
        struct route *r = mr->mpriv->route;
        enum projection pro = route_projection(r);
 
+       if (pro == projection_none)
+               return 0;
        for (i=0; i < count; i++) {
                if (mr->item.type == type_rg_point) {
                        if (mr->last_coord >= 1)
@@ -2172,14 +2495,21 @@ rm_rect_new(struct map_priv *priv, struct map_selection *sel)
                return NULL;
        if (! route_get_dst(priv->route))
                return NULL;
+#if 0
        if (! priv->route->path2)
                return NULL;
+#endif
        mr=g_new0(struct map_rect_priv, 1);
        mr->mpriv = priv;
        mr->item.priv_data = mr;
-       mr->item.type = type_street_route;
+       mr->item.type = type_none;
        mr->item.meth = &methods_route_item;
-       mr->seg_next=priv->route->path2->path;
+       if (priv->route->path2) {
+               mr->path=priv->route->path2;
+               mr->seg_next=mr->path->path;
+               mr->path->in_use++;
+       } else
+               mr->seg_next=NULL;
        return mr;
 }
 
@@ -2227,6 +2557,11 @@ rm_rect_destroy(struct map_rect_priv *mr)
        if (mr->coord_sel) {
                g_free(mr->coord_sel);
        }
+       if (mr->path) {
+               mr->path->in_use--;
+               if (mr->path->update_required && !mr->path->in_use) 
+                       route_path_update_done(mr->mpriv->route, mr->path->update_required-1);
+       }
 
        g_free(mr);
 }
@@ -2308,10 +2643,24 @@ rm_get_item(struct map_rect_priv *mr)
 {
        dbg(1,"enter\n", mr->pos);
 
-       mr->seg=mr->seg_next;
-       if (! mr->seg)
+       switch (mr->item.type) {
+       case type_none:
+               mr->item.type=type_route_start;
+               if (mr->mpriv->route->pos) 
+                       break;
+       default:
+               mr->item.type=type_street_route;
+               mr->seg=mr->seg_next;
+               if (mr->seg) {
+                       mr->seg_next=mr->seg->next;
+                       break;
+               }
+               mr->item.type=type_route_end;
+               if (mr->mpriv->route->dst)
+                       break;
+       case type_route_end:
                return NULL;
-       mr->seg_next=mr->seg->next;
+       }
        mr->last_coord = 0;
        mr->item.id_lo++;
        rm_attr_rewind(mr);
@@ -2447,8 +2796,32 @@ route_set_projection(struct route *this_, enum projection pro)
 }
 
 void
+route_add_callback(struct route *this_, struct callback *cb)
+{
+       callback_list_add(this_->cbl, cb);
+}
+
+void
+route_remove_callback(struct route *this_, struct callback *cb)
+{
+       callback_list_remove(this_->cbl, cb);
+}
+
+int
+route_get_attr(struct route *this_, enum attr_type type, struct attr *attr, struct attr_iter *iter)
+{
+       switch (type) {
+       case attr_map:
+               attr->u.map=route_get_map(this_);
+               return attr->u.map != NULL;
+       default:
+               return 0;
+       }
+}
+void
 route_init(void)
 {
        plugin_register_map_type("route", route_map_new);
        plugin_register_map_type("route_graph", route_graph_map_new);
 }
+