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

   1 #include <config.h>
   2
   3 #include "utils.h"
   4 #include "map.h"
   5 #include "route.h"
   6 #include "mapper-types.h"
   7
   8 #include "track.h"
   9
  10 void
  11 path_resize(Path * path, guint size)
  12 {
  13 if (path->head + size != path->cap) {
  14         Point *old_head = path->head;
  15         WayPoint *curr;
  16         path->head = g_renew(Point, old_head, size);
  17         path->cap = path->head + size;
  18         if (path->head != old_head) {
  19                 path->tail = path->head + (path->tail - old_head);
  20
  21                 /* Adjust all of the waypoints. */
  22                 for (curr = path->whead - 1; curr++ != path->wtail;)
  23                         curr->point =
  24                             path->head + (curr->point - old_head);
  25         }
  26 }
  27 }
  28
  29 void
  30 path_wresize(Path * path, guint wsize)
  31 {
  32 if (path->whead + wsize != path->wcap) {
  33         WayPoint *old_whead = path->whead;
  34         path->whead = g_renew(WayPoint, old_whead, wsize);
  35         path->wtail = path->whead + (path->wtail - old_whead);
  36         path->wcap = path->whead + wsize;
  37 }
  38 }