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 #include "path.h"
  10
  11 void
  12 path_resize(Path *path, guint size)
  13 {
  14 if (path->head + size != path->cap) {
  15         Point *old_head = path->head;
  16         WayPoint *curr;
  17         path->head = g_renew(Point, old_head, size);
  18         path->cap = path->head + size;
  19         if (path->head != old_head) {
  20                 path->tail = path->head + (path->tail - old_head);
  21
  22                 /* Adjust all of the waypoints. */
  23                 for (curr = path->whead - 1; curr++ != path->wtail;)
  24                         curr->point = 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 }