err.no Git - mapper/blob - src/path.c

   1 #include <config.h>
   2
   3 #include <gtk/gtk.h>
   4
   5 #include "utils.h"
   6 #include "map.h"
   7 #include "route.h"
   8 #include "mapper-types.h"
   9 #include "track.h"
  10 #include "path.h"
  11 #include "settings.h"
  12 #include "latlon.h"
  13
  14 void
  15 path_resize(Path *path, guint size)
  16 {
  17 if (path->head + size != path->cap) {
  18         Point *old_head = path->head;
  19         WayPoint *curr;
  20         path->head = g_renew(Point, old_head, size);
  21         path->cap = path->head + size;
  22         if (path->head != old_head) {
  23                 path->tail = path->head + (path->tail - old_head);
  24
  25                 /* Adjust all of the waypoints. */
  26                 for (curr = path->whead - 1; curr++ != path->wtail;)
  27                         curr->point = path->head + (curr->point - old_head);
  28         }
  29 }
  30 }
  31
  32 void
  33 path_wresize(Path *path, guint wsize)
  34 {
  35 if (path->whead + wsize != path->wcap) {
  36         WayPoint *old_whead = path->whead;
  37         path->whead = g_renew(WayPoint, old_whead, wsize);
  38         path->wtail = path->whead + (path->wtail - old_whead);
  39         path->wcap = path->whead + wsize;
  40 }
  41 }
  42
  43 GtkListStore *
  44 path_generate_store(Path *path)
  45 {
  46 WayPoint *wcurr;
  47 GtkTreeIter iter;
  48 GtkListStore *store;
  49 gchar buffer1[80];
  50 gchar buffer2[32];
  51 gdouble lat1, lon1, lat2, lon2;
  52 gdouble sum=0.0;
  53
  54 if (path->whead==path->wtail)
  55         return NULL;
  56
  57 wcurr=path->whead;
  58
  59 if (!wcurr)
  60         return NULL;
  61
  62 if (!wcurr->point)
  63         return NULL;
  64
  65 unit2latlon(wcurr->point->unitx, wcurr->point->unity, lat1, lon1);
  66
  67 store = gtk_list_store_new(ROUTE_NUM_COLUMNS,G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_DOUBLE, G_TYPE_DOUBLE);
  68
  69 while (wcurr!=path->wtail) {
  70         if (!wcurr)
  71                 break;
  72
  73         if (!wcurr->point)
  74                 break;
  75
  76         unit2latlon(wcurr->point->unitx, wcurr->point->unity, lat2, lon2);
  77         g_snprintf(buffer1, sizeof(buffer1), "%.05f,%.05f", lat2, lon2);
  78         sum += calculate_distance(lat1, lon1, lat2, lon2);
  79         g_snprintf(buffer2, sizeof(buffer2), "%.02f %s", sum * UNITS_CONVERT[_units], UNITS_TEXT[_units]);
  80
  81         gtk_list_store_append(store, &iter);
  82         gtk_list_store_set(store, &iter,
  83         ROUTE_LATLON, buffer1,
  84                 ROUTE_DISTANCE, buffer2,
  85                 ROUTE_WAYPOINT, wcurr->desc,
  86                 ROUTE_LAT, lat2,
  87                 ROUTE_LON, lon2,
  88                 -1);
  89
  90         lat1=lat2;
  91         lon1=lon2;
  92
  93         wcurr++;
  94 }
  95
  96 return store;
  97 }