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 Path *
  15 path_new(void)
  16 {
  17 Path *p;
  18
  19 p=g_slice_new0(Path);
  20 MACRO_PATH_INIT(*p);
  21 return p;
  22 }
  23
  24 void
  25 path_free(Path *p)
  26 {
  27 g_return_if_fail(p);
  28 MACRO_PATH_FREE(*p);
  29 g_slice_free(Path, p);
  30 }
  31
  32 void
  33 path_resize(Path *path, guint size)
  34 {
  35 if (path->head + size != path->cap) {
  36         Point *old_head = path->head;
  37         WayPoint *curr;
  38         path->head = g_renew(Point, old_head, size);
  39         path->cap = path->head + size;
  40         if (path->head != old_head) {
  41                 path->tail = path->head + (path->tail - old_head);
  42
  43                 /* Adjust all of the waypoints. */
  44                 for (curr = path->whead - 1; curr++ != path->wtail;)
  45                         curr->point = path->head + (curr->point - old_head);
  46         }
  47 }
  48 }
  49
  50 void
  51 path_wresize(Path *path, guint wsize)
  52 {
  53 if (path->whead + wsize != path->wcap) {
  54         WayPoint *old_whead = path->whead;
  55         path->whead = g_renew(WayPoint, old_whead, wsize);
  56         path->wtail = path->whead + (path->wtail - old_whead);
  57         path->wcap = path->whead + wsize;
  58 }
  59 }
  60
  61 gboolean
  62 path_insert_break(Path *path)
  63 {
  64 if (!path)
  65         return FALSE;
  66
  67 if (!path->tail)
  68         return FALSE;
  69
  70 if (path->tail->unity) {
  71         guint x1, y1;
  72
  73         /* To mark a "waypoint" in a track, we'll add a (0, 0) point and then
  74          * another instance of the most recent track point. */
  75         MACRO_PATH_INCREMENT_TAIL(*path);
  76         *path->tail=_point_null;
  77         MACRO_PATH_INCREMENT_TAIL(*path);
  78         *path->tail=path->tail[-2];
  79
  80 #if 0
  81         /* Instead of calling map_render_paths(), we'll just draw the waypoint ourselves. */
  82         x1 = unit2bufx(path->tail->unitx);
  83         y1 = unit2bufy(path->tail->unity);
  84         map_render_waypoint(x1, y1, _gc[COLORABLE_TRACK_BREAK]);
  85 #endif
  86 }
  87 return FALSE;
  88 }
  89
  90 /**
  91  * Add a text description at current point
  92  *
  93  */
  94 void
  95 path_insert_mark_text(Path *path, gchar *text)
  96 {
  97 MACRO_PATH_INCREMENT_WTAIL(*path);
  98 path->wtail->point = path->tail;
  99 path->wtail->desc = text;
 100 }
 101
 102 GtkListStore *
 103 path_generate_store(Path *path)
 104 {
 105 WayPoint *wcurr;
 106 GtkTreeIter iter;
 107 GtkListStore *store;
 108 gchar buffer1[80];
 109 gchar buffer2[32];
 110 gchar tmp1[16], tmp2[16];
 111 gdouble lat1, lon1, lat2, lon2;
 112 gdouble sum=0.0;
 113
 114 if (path->whead==path->wtail)
 115         return NULL;
 116
 117 wcurr=path->whead;
 118
 119 if (!wcurr)
 120         return NULL;
 121
 122 if (!wcurr->point)
 123         return NULL;
 124
 125 unit2latlon(wcurr->point->unitx, wcurr->point->unity, lat1, lon1);
 126
 127 store=gtk_list_store_new(ROUTE_NUM_COLUMNS, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_DOUBLE, G_TYPE_DOUBLE);
 128
 129 while (wcurr!=path->wtail) {
 130         if (!wcurr) {
 131                 break;
 132         }
 133
 134         if (!wcurr->point) {
 135                 g_debug("No point for waypoint (%s) skipping", wcurr->desc);
 136                 wcurr++;
 137                 continue;
 138         }
 139
 140         unit2latlon(wcurr->point->unitx, wcurr->point->unity, lat2, lon2);
 141         lat_format(_degformat, lat2, tmp1);
 142         lon_format(_degformat, lon2, tmp2);
 143
 144         g_snprintf(buffer1, sizeof(buffer1), "%s,%s", tmp1, tmp2);
 145         sum += calculate_distance(lat1, lon1, lat2, lon2);
 146         g_snprintf(buffer2, sizeof(buffer2), "%.02f %s", sum * UNITS_CONVERT[_units], UNITS_TEXT[_units]);
 147
 148         gtk_list_store_append(store, &iter);
 149         gtk_list_store_set(store, &iter,
 150         ROUTE_LATLON, buffer1,
 151                 ROUTE_DISTANCE, buffer2,
 152                 ROUTE_WAYPOINT, wcurr->desc,
 153                 ROUTE_LAT, lat2,
 154                 ROUTE_LON, lon2,
 155                 -1);
 156
 157         lat1=lat2;
 158         lon1=lon2;
 159
 160         wcurr++;
 161 }
 162
 163 return store;
 164 }