Pileus Git - aweather/blob - src/plugins/radar.c

   1 /*
   2  * Copyright (C) 2009-2010 Andy Spencer <andy753421@gmail.com>
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #define _XOPEN_SOURCE
  19 #include <sys/time.h>
  20 #include <config.h>
  21 #include <glib/gstdio.h>
  22 #include <gtk/gtk.h>
  23 #include <gtk/gtkgl.h>
  24 #include <gio/gio.h>
  25 #include <GL/gl.h>
  26 #include <math.h>
  27 #include <rsl.h>
  28
  29 #include <gis.h>
  30
  31 #include "radar.h"
  32 #include "level2.h"
  33 #include "../aweather-location.h"
  34
  35 void _gtk_bin_set_child(GtkBin *bin, GtkWidget *new)
  36 {
  37         GtkWidget *old = gtk_bin_get_child(bin);
  38         if (old)
  39                 gtk_widget_destroy(old);
  40         gtk_container_add(GTK_CONTAINER(bin), new);
  41         gtk_widget_show_all(new);
  42 }
  43
  44 static gchar *_find_nearest(time_t time, GList *files,
  45                 gsize offset, gchar *format)
  46 {
  47         g_debug("GisPluginRadar: _find_nearest ...");
  48         time_t  nearest_time = 0;
  49         char   *nearest_file = NULL;
  50
  51         struct tm tm = {};
  52         for (GList *cur = files; cur; cur = cur->next) {
  53                 gchar *file = cur->data;
  54                 strptime(file+offset, format, &tm);
  55                 if (ABS(time - mktime(&tm)) <
  56                     ABS(time - nearest_time)) {
  57                         nearest_file = file;
  58                         nearest_time = mktime(&tm);
  59                 }
  60         }
  61
  62         g_debug("GisPluginRadar: _find_nearest = %s", nearest_file);
  63         if (nearest_file)
  64                 return g_strdup(nearest_file);
  65         else
  66                 return NULL;
  67 }
  68
  69
  70 /**************
  71  * RadarSites *
  72  **************/
  73 typedef enum {
  74         STATUS_UNLOADED,
  75         STATUS_LOADING,
  76         STATUS_LOADED,
  77 } RadarSiteStatus;
  78 struct _RadarSite {
  79         /* Information */
  80         city_t    *city;
  81         GisMarker *marker;     // Map marker for libgis
  82         gpointer  *marker_ref; // Reference to maker
  83
  84         /* Stuff from the parents */
  85         GisViewer     *viewer;
  86         GisHttp       *http;
  87         GisPrefs      *prefs;
  88         GtkWidget     *pconfig;
  89
  90         /* When loaded */
  91         RadarSiteStatus status;     // Loading status for the site
  92         GtkWidget      *config;
  93         AWeatherLevel2 *level2;     // The Level2 structure for the current volume
  94         gpointer        level2_ref; // GisViewer reference to the added radar
  95
  96         /* Internal data */
  97         time_t   time;        // Current timestamp of the level2
  98         gchar   *message;     // Error message set while updating
  99         guint    time_id;     // "time-changed"     callback ID
 100         guint    refresh_id;  // "refresh"          callback ID
 101         guint    location_id; // "locaiton-changed" callback ID
 102 };
 103
 104 /* format: http://mesonet.agron.iastate.edu/data/nexrd2/raw/KABR/KABR_20090510_0323 */
 105 void _site_update_loading(gchar *file, goffset cur,
 106                 goffset total, gpointer _site)
 107 {
 108         RadarSite *site = _site;
 109         GtkWidget *progress_bar = gtk_bin_get_child(GTK_BIN(site->config));
 110         double percent = (double)cur/total;
 111         gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(progress_bar), MIN(percent, 1.0));
 112         gchar *msg = g_strdup_printf("Loading... %5.1f%% (%.2f/%.2f MB)",
 113                         percent*100, (double)cur/1000000, (double)total/1000000);
 114         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(progress_bar), msg);
 115         g_free(msg);
 116 }
 117 gboolean _site_update_end(gpointer _site)
 118 {
 119         RadarSite *site = _site;
 120         if (site->message) {
 121                 g_warning("GisPluginRadar: _update_end - %s", site->message);
 122                 _gtk_bin_set_child(GTK_BIN(site->config), gtk_label_new(site->message));
 123         } else {
 124                 _gtk_bin_set_child(GTK_BIN(site->config),
 125                                 aweather_level2_get_config(site->level2));
 126         }
 127         site->status = STATUS_LOADED;
 128         return FALSE;
 129 }
 130 gpointer _site_update_thread(gpointer _site)
 131 {
 132         RadarSite *site = _site;
 133         g_debug("GisPluginRadar: _update - %s", site->city->code);
 134         site->status = STATUS_LOADING;
 135         site->message = NULL;
 136
 137         gboolean offline = gis_viewer_get_offline(site->viewer);
 138         gchar *nexrad_url = gis_prefs_get_string(site->prefs,
 139                         "aweather/nexrad_url", NULL);
 140
 141         /* Remove old volume */
 142         g_debug("GisPluginRadar: _update - remove - %s", site->city->code);
 143         if (site->level2_ref) {
 144                 gis_viewer_remove(site->viewer, site->level2_ref);
 145                 site->level2_ref = NULL;
 146         }
 147
 148         /* Find nearest volume (temporally) */
 149         g_debug("GisPluginRadar: _update - find nearest - %s", site->city->code);
 150         gchar *dir_list = g_strconcat(nexrad_url, "/", site->city->code,
 151                         "/", "dir.list", NULL);
 152         GList *files = gis_http_available(site->http,
 153                         "^K\\w{3}_\\d{8}_\\d{4}$", site->city->code,
 154                         "\\d+ (.*)", (offline ? NULL : dir_list));
 155         g_free(dir_list);
 156         gchar *nearest = _find_nearest(site->time, files, 5, "%Y%m%d_%H%M");
 157         g_list_foreach(files, (GFunc)g_free, NULL);
 158         g_list_free(files);
 159         if (!nearest) {
 160                 site->message = "No suitable files found";
 161                 goto out;
 162         }
 163
 164         /* Fetch new volume */
 165         g_debug("GisPluginRadar: _update - fetch");
 166         gchar *local = g_strconcat(site->city->code, "/", nearest, NULL);
 167         gchar *uri   = g_strconcat(nexrad_url, "/", local,   NULL);
 168         gchar *file = gis_http_fetch(site->http, uri, local,
 169                         offline ? GIS_LOCAL : GIS_UPDATE,
 170                         _site_update_loading, site);
 171         g_free(nexrad_url);
 172         g_free(nearest);
 173         g_free(local);
 174         g_free(uri);
 175         if (!file) {
 176                 site->message = "Fetch failed";
 177                 goto out;
 178         }
 179
 180         /* Load and add new volume */
 181         g_debug("GisPluginRadar: _update - load - %s", site->city->code);
 182         site->level2 = aweather_level2_new_from_file(
 183                         site->viewer, colormaps, file, site->city->code);
 184         g_free(file);
 185         if (!site->level2) {
 186                 site->message = "Load failed";
 187                 goto out;
 188         }
 189         site->level2_ref = gis_viewer_add(site->viewer,
 190                         GIS_OBJECT(site->level2), GIS_LEVEL_WORLD, TRUE);
 191
 192 out:
 193         g_idle_add(_site_update_end, site);
 194         return NULL;
 195 }
 196 void _site_update(RadarSite *site)
 197 {
 198         site->time = gis_viewer_get_time(site->viewer);
 199         g_debug("GisPluginRadar: _on_time_changed %s - %d",
 200                         site->city->code, (gint)site->time);
 201
 202         /* Add a progress bar */
 203         GtkWidget *progress = gtk_progress_bar_new();
 204         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(progress), "Loading...");
 205         _gtk_bin_set_child(GTK_BIN(site->config), progress);
 206
 207         /* Fork loading right away so updating the
 208          * list of times doesn't take too long */
 209         g_thread_create(_site_update_thread, site, FALSE, NULL);
 210 }
 211
 212 /* RadarSite methods */
 213 void radar_site_unload(RadarSite *site)
 214 {
 215         if (site->status != STATUS_LOADED)
 216                 return; // Abort if it's still loading
 217
 218         g_debug("GisPluginRadar: radar_site_unload %s", site->city->code);
 219
 220         if (site->time_id)
 221                 g_signal_handler_disconnect(site->viewer, site->time_id);
 222         if (site->refresh_id)
 223                 g_signal_handler_disconnect(site->viewer, site->refresh_id);
 224
 225         /* Remove tab */
 226         if (site->config)
 227                 gtk_widget_destroy(site->config);
 228
 229         /* Remove radar */
 230         if (site->level2_ref) {
 231                 gis_viewer_remove(site->viewer, site->level2_ref);
 232                 site->level2_ref = NULL;
 233         }
 234
 235         site->status = STATUS_UNLOADED;
 236 }
 237
 238 void radar_site_load(RadarSite *site)
 239 {
 240         g_debug("GisPluginRadar: radar_site_load %s", site->city->code);
 241         site->status = STATUS_LOADING;
 242
 243         /* Add tab page */
 244         site->config = gtk_alignment_new(0, 0, 1, 1);
 245         GtkWidget *tab   = gtk_hbox_new(FALSE, 0);
 246         GtkWidget *close = gtk_button_new();
 247         GtkWidget *label = gtk_label_new(site->city->name);
 248         gtk_container_add(GTK_CONTAINER(close),
 249                         gtk_image_new_from_stock(GTK_STOCK_CLOSE,
 250                                 GTK_ICON_SIZE_MENU));
 251         gtk_button_set_relief(GTK_BUTTON(close), GTK_RELIEF_NONE);
 252         g_signal_connect_swapped(close, "clicked",
 253                         G_CALLBACK(radar_site_unload), site);
 254         gtk_box_pack_start(GTK_BOX(tab), label, TRUE, TRUE, 0);
 255         gtk_box_pack_end(GTK_BOX(tab), close, FALSE, FALSE, 0);
 256         gtk_notebook_append_page(GTK_NOTEBOOK(site->pconfig),
 257                         site->config, tab);
 258         gtk_widget_show_all(site->config);
 259         gtk_widget_show_all(tab);
 260
 261         /* Set up radar loading */
 262         site->time_id = g_signal_connect_swapped(site->viewer, "time-changed",
 263                         G_CALLBACK(_site_update), site);
 264         site->refresh_id = g_signal_connect_swapped(site->viewer, "refresh",
 265                         G_CALLBACK(_site_update), site);
 266         _site_update(site);
 267 }
 268
 269 void _site_on_location_changed(GisViewer *viewer,
 270                 gdouble lat, gdouble lon, gdouble elev,
 271                 gpointer _site)
 272 {
 273         static gdouble min_dist = EARTH_R / 20;
 274         RadarSite *site = _site;
 275
 276         /* Calculate distance, could cache xyz values */
 277         gdouble eye_xyz[3], site_xyz[3];
 278         lle2xyz(lat, lon, elev, &eye_xyz[0], &eye_xyz[1], &eye_xyz[2]);
 279         lle2xyz(site->city->pos.lat, site->city->pos.lon, site->city->pos.elev,
 280                         &site_xyz[0], &site_xyz[1], &site_xyz[2]);
 281         gdouble dist = distd(site_xyz, eye_xyz);
 282
 283         /* Load or unload the site if necessasairy */
 284         if (dist <= min_dist && dist < elev*1.25 && site->status == STATUS_UNLOADED)
 285                 radar_site_load(site);
 286         else if (dist > 2*min_dist &&  site->status != STATUS_UNLOADED)
 287                 radar_site_unload(site);
 288 }
 289
 290 gboolean _site_add_marker(gpointer _site)
 291 {
 292         RadarSite *site = _site;
 293         site->marker = gis_marker_new(site->city->name);
 294         GIS_OBJECT(site->marker)->center = site->city->pos;
 295         GIS_OBJECT(site->marker)->lod    = EARTH_R*site->city->lod;
 296         site->marker_ref = gis_viewer_add(site->viewer,
 297                         GIS_OBJECT(site->marker), GIS_LEVEL_OVERLAY, FALSE);
 298         return FALSE;
 299 }
 300 RadarSite *radar_site_new(city_t *city, GtkWidget *pconfig,
 301                 GisViewer *viewer, GisPrefs *prefs, GisHttp *http)
 302 {
 303         RadarSite *site = g_new0(RadarSite, 1);
 304         site->viewer  = g_object_ref(viewer);
 305         site->prefs   = g_object_ref(prefs);
 306         site->http    = http;
 307         site->city    = city;
 308         site->pconfig = pconfig;
 309
 310         /* Add marker */
 311         g_idle_add(_site_add_marker, site);
 312
 313         /* Connect signals */
 314         site->location_id  = g_signal_connect(viewer, "location-changed",
 315                         G_CALLBACK(_site_on_location_changed), site);
 316         return site;
 317 }
 318
 319 void radar_site_free(RadarSite *site)
 320 {
 321         radar_site_unload(site);
 322         gis_viewer_remove(site->viewer, site->marker_ref);
 323         if (site->location_id)
 324                 g_signal_handler_disconnect(site->viewer, site->location_id);
 325         g_object_unref(site->viewer);
 326         g_object_unref(site->prefs);
 327         g_free(site);
 328 }
 329
 330
 331 /**************
 332  * RadarConus *
 333  **************/
 334 struct _RadarConus {
 335         GisViewer   *viewer;
 336         GisHttp     *http;
 337         GtkWidget   *config;
 338         time_t       time;
 339         GisTile     *tile;
 340         gpointer    *tile_ref;
 341         GdkPixbuf   *pixbuf;
 342         const gchar *message;
 343         gchar       *nearest;
 344
 345         guint        time_id;     // "time-changed"     callback ID
 346         guint        refresh_id;  // "refresh"          callback ID
 347 };
 348
 349 void _conus_update_loading(gchar *file, goffset cur,
 350                 goffset total, gpointer _conus)
 351 {
 352         RadarConus *conus = _conus;
 353         GtkWidget *progress_bar = gtk_bin_get_child(GTK_BIN(conus->config));
 354         double percent = (double)cur/total;
 355         gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(progress_bar), MIN(percent, 1.0));
 356         gchar *msg = g_strdup_printf("Loading... %5.1f%% (%.2f/%.2f MB)",
 357                         percent*100, (double)cur/1000000, (double)total/1000000);
 358         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(progress_bar), msg);
 359         g_free(msg);
 360 }
 361
 362 gboolean _conus_update_end(gpointer _conus)
 363 {
 364         RadarConus *conus = _conus;
 365
 366         guchar    *pixels = gdk_pixbuf_get_pixels(conus->pixbuf);
 367         gboolean   alpha  = gdk_pixbuf_get_has_alpha(conus->pixbuf);
 368         gint       width  = gdk_pixbuf_get_width(conus->pixbuf);
 369         gint       height = gdk_pixbuf_get_height(conus->pixbuf);
 370
 371         if (!conus->tile->data) {
 372                 conus->tile->data = g_new0(guint, 1);
 373                 glGenTextures(1, conus->tile->data);
 374         }
 375
 376         guint *tex = conus->tile->data;
 377         glBindTexture(GL_TEXTURE_2D, *tex);
 378
 379         glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
 380         glPixelStorei(GL_PACK_ALIGNMENT, 1);
 381         glTexImage2D(GL_TEXTURE_2D, 0, 4, width, height, 0,
 382                         (alpha ? GL_RGBA : GL_RGB), GL_UNSIGNED_BYTE, pixels);
 383         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 384         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 385         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
 386         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
 387         glFlush();
 388
 389         /* finish */
 390         _gtk_bin_set_child(GTK_BIN(conus->config),
 391                         gtk_label_new(conus->nearest));
 392         gtk_widget_queue_draw(GTK_WIDGET(conus->viewer));
 393
 394         /* free data */
 395         g_object_unref(conus->pixbuf);
 396         g_free(conus->nearest);
 397
 398         return FALSE;
 399 }
 400
 401 gpointer _conus_update_thread(gpointer _conus)
 402 {
 403         RadarConus *conus = _conus;
 404
 405         /* Find nearest */
 406         gboolean offline = gis_viewer_get_offline(conus->viewer);
 407         gchar *conus_url = "http://radar.weather.gov/Conus/RadarImg/";
 408         GList *files = gis_http_available(conus->http,
 409                         "^Conus_[^\"]*_N0Ronly.gif$", "",
 410                         NULL, (offline ? NULL : conus_url));
 411         conus->nearest = _find_nearest(conus->time, files, 6, "%Y%m%d_%H%M");
 412         g_list_foreach(files, (GFunc)g_free, NULL);
 413         g_list_free(files);
 414         if (!conus->nearest) {
 415                 conus->message = "No suitable files";
 416                 goto out;
 417         }
 418
 419         /* Fetch the image */
 420         gchar *uri     = g_strconcat(conus_url, conus->nearest, NULL);
 421         gchar *path    = gis_http_fetch(conus->http, uri, conus->nearest, GIS_ONCE,
 422                         _conus_update_loading, conus);
 423         g_free(uri);
 424         if (!path) {
 425                 conus->message = "Fetch failed";
 426                 goto out;
 427         }
 428
 429         /* Load the image to a pixbuf */
 430         GError *error = NULL;
 431         conus->pixbuf = gdk_pixbuf_new_from_file(path, &error);
 432         g_free(path);
 433         if (!gdk_pixbuf_get_has_alpha(conus->pixbuf)) {
 434                 GdkPixbuf *tmp = gdk_pixbuf_add_alpha(conus->pixbuf, TRUE, 0xff, 0xff, 0xff);
 435                 g_object_unref(conus->pixbuf);
 436                 conus->pixbuf = tmp;
 437         }
 438
 439         /* Map the pixbuf's alpha values */
 440         const guchar colormap[][2][4] = {
 441                 {{0x04, 0xe9, 0xe7}, {0x04, 0xe9, 0xe7, 0x30}},
 442                 {{0x01, 0x9f, 0xf4}, {0x01, 0x9f, 0xf4, 0x60}},
 443                 {{0x03, 0x00, 0xf4}, {0x03, 0x00, 0xf4, 0x90}},
 444         };
 445         guchar *pixels = gdk_pixbuf_get_pixels(conus->pixbuf);
 446         gint    height = gdk_pixbuf_get_height(conus->pixbuf);
 447         gint    width  = gdk_pixbuf_get_width(conus->pixbuf);
 448         for (int i = 0; i < width*height; i++) {
 449                 for (int j = 0; j < G_N_ELEMENTS(colormap); j++) {
 450                         if (pixels[i*4+0] > 0xe0 &&
 451                             pixels[i*4+1] > 0xe0 &&
 452                             pixels[i*4+2] > 0xe0) {
 453                                 pixels[i*4+3] = 0x00;
 454                                 break;
 455                         }
 456                         if (pixels[i*4+0] == colormap[j][0][0] &&
 457                             pixels[i*4+1] == colormap[j][0][1] &&
 458                             pixels[i*4+2] == colormap[j][0][2]) {
 459                                 pixels[i*4+0] = colormap[j][1][0];
 460                                 pixels[i*4+1] = colormap[j][1][1];
 461                                 pixels[i*4+2] = colormap[j][1][2];
 462                                 pixels[i*4+3] = colormap[j][1][3];
 463                                 break;
 464                         }
 465                 }
 466         }
 467
 468 out:
 469         g_idle_add(_conus_update_end, conus);
 470         return NULL;
 471 }
 472
 473 void _conus_update(RadarConus *conus)
 474 {
 475         conus->time = gis_viewer_get_time(conus->viewer);
 476         g_debug("GisPluginRadar: _conus_update - %d",
 477                         (gint)conus->time);
 478
 479         /* Add a progress bar */
 480         GtkWidget *progress = gtk_progress_bar_new();
 481         gtk_progress_bar_set_text(GTK_PROGRESS_BAR(progress), "Loading...");
 482         _gtk_bin_set_child(GTK_BIN(conus->config), progress);
 483
 484         g_thread_create(_conus_update_thread, conus, FALSE, NULL);
 485 }
 486
 487 RadarConus *radar_conus_new(GtkWidget *pconfig,
 488                 GisViewer *viewer, GisHttp *http)
 489 {
 490         RadarConus *conus = g_new0(RadarConus, 1);
 491         conus->viewer  = g_object_ref(viewer);
 492         conus->http    = http;
 493         conus->config  = gtk_alignment_new(0, 0, 1, 1);
 494         conus->tile    = gis_tile_new(NULL,
 495                         50.406626367301044,   50.406626367301044-0.017971305190311*1600,
 496                         -127.620375523875420+0.017971305190311*3400, -127.620375523875420);
 497         conus->tile->zindex = 1;
 498         conus->tile_ref = gis_viewer_add(viewer,
 499                         GIS_OBJECT(conus->tile), GIS_LEVEL_WORLD, TRUE);
 500
 501         conus->time_id = g_signal_connect_swapped(viewer, "time-changed",
 502                         G_CALLBACK(_conus_update), conus);
 503         conus->refresh_id = g_signal_connect_swapped(viewer, "refresh",
 504                         G_CALLBACK(_conus_update), conus);
 505
 506         gtk_notebook_append_page(GTK_NOTEBOOK(pconfig), conus->config, gtk_label_new("Conus"));
 507         _conus_update(conus);
 508         return conus;
 509 }
 510
 511 void radar_conus_free(RadarConus *conus)
 512 {
 513         g_signal_handler_disconnect(conus->viewer, conus->time_id);
 514         g_signal_handler_disconnect(conus->viewer, conus->refresh_id);
 515
 516         if (conus->tile->data) {
 517                 glDeleteTextures(1, conus->tile->data);
 518                 g_free(conus->tile->data);
 519         }
 520         gis_viewer_remove(conus->viewer, conus->tile_ref);
 521
 522         g_object_unref(conus->viewer);
 523         g_free(conus);
 524 }
 525
 526
 527 /******************
 528  * GisPluginRadar *
 529  ******************/
 530 static void _draw_hud(GisCallback *callback, gpointer _self)
 531 {
 532         /* TODO */
 533         GisPluginRadar *self = GIS_PLUGIN_RADAR(_self);
 534         if (!self->colormap)
 535                 return;
 536
 537         g_debug("GisPluginRadar: _draw_hud");
 538         /* Print the color table */
 539         glMatrixMode(GL_MODELVIEW ); glLoadIdentity();
 540         glMatrixMode(GL_PROJECTION); glLoadIdentity();
 541         glDisable(GL_TEXTURE_2D);
 542         glDisable(GL_ALPHA_TEST);
 543         glDisable(GL_CULL_FACE);
 544         glDisable(GL_LIGHTING);
 545         glEnable(GL_COLOR_MATERIAL);
 546         glBegin(GL_QUADS);
 547         int i;
 548         for (i = 0; i < 256; i++) {
 549                 glColor4ubv(self->colormap->data[i]);
 550                 glVertex3f(-1.0, (float)((i  ) - 256/2)/(256/2), 0.0); // bot left
 551                 glVertex3f(-1.0, (float)((i+1) - 256/2)/(256/2), 0.0); // top left
 552                 glVertex3f(-0.9, (float)((i+1) - 256/2)/(256/2), 0.0); // top right
 553                 glVertex3f(-0.9, (float)((i  ) - 256/2)/(256/2), 0.0); // bot right
 554         }
 555         glEnd();
 556 }
 557
 558 /* Methods */
 559 GisPluginRadar *gis_plugin_radar_new(GisViewer *viewer, GisPrefs *prefs)
 560 {
 561         /* TODO: move to constructor if possible */
 562         g_debug("GisPluginRadar: new");
 563         GisPluginRadar *self = g_object_new(GIS_TYPE_PLUGIN_RADAR, NULL);
 564         self->viewer = viewer;
 565         self->prefs  = prefs;
 566
 567         /* Load HUD */
 568         GisCallback *hud_cb = gis_callback_new(_draw_hud, self);
 569         self->hud_ref = gis_viewer_add(viewer, GIS_OBJECT(hud_cb), GIS_LEVEL_HUD, FALSE);
 570
 571         /* Load Conus */
 572         self->conus = radar_conus_new(self->config, self->viewer, self->conus_http);
 573
 574         /* Load radar sites */
 575         for (city_t *city = cities; city->type; city++) {
 576                 if (city->type != LOCATION_CITY)
 577                         continue;
 578                 RadarSite *site = radar_site_new(city, self->config,
 579                                 self->viewer, self->prefs, self->sites_http);
 580                 g_hash_table_insert(self->sites, city->code, site);
 581         }
 582
 583         return self;
 584 }
 585
 586 static GtkWidget *gis_plugin_radar_get_config(GisPlugin *_self)
 587 {
 588         GisPluginRadar *self = GIS_PLUGIN_RADAR(_self);
 589         return self->config;
 590 }
 591
 592 /* GObject code */
 593 static void gis_plugin_radar_plugin_init(GisPluginInterface *iface);
 594 G_DEFINE_TYPE_WITH_CODE(GisPluginRadar, gis_plugin_radar, G_TYPE_OBJECT,
 595                 G_IMPLEMENT_INTERFACE(GIS_TYPE_PLUGIN,
 596                         gis_plugin_radar_plugin_init));
 597 static void gis_plugin_radar_plugin_init(GisPluginInterface *iface)
 598 {
 599         g_debug("GisPluginRadar: plugin_init");
 600         /* Add methods to the interface */
 601         iface->get_config = gis_plugin_radar_get_config;
 602 }
 603 static void gis_plugin_radar_init(GisPluginRadar *self)
 604 {
 605         g_debug("GisPluginRadar: class_init");
 606         /* Set defaults */
 607         self->sites_http = gis_http_new(G_DIR_SEPARATOR_S "nexrad" G_DIR_SEPARATOR_S "level2" G_DIR_SEPARATOR_S);
 608         self->conus_http = gis_http_new(G_DIR_SEPARATOR_S "nexrad" G_DIR_SEPARATOR_S "conus" G_DIR_SEPARATOR_S);
 609         self->sites      = g_hash_table_new_full(g_str_hash, g_str_equal,
 610                                 NULL, (GDestroyNotify)radar_site_free);
 611         self->config     = gtk_notebook_new();
 612         gtk_notebook_set_tab_pos(GTK_NOTEBOOK(self->config), GTK_POS_LEFT);
 613 }
 614 static void gis_plugin_radar_dispose(GObject *gobject)
 615 {
 616         g_debug("GisPluginRadar: dispose");
 617         GisPluginRadar *self = GIS_PLUGIN_RADAR(gobject);
 618         gis_viewer_remove(self->viewer, self->hud_ref);
 619         radar_conus_free(self->conus);
 620         /* Drop references */
 621         G_OBJECT_CLASS(gis_plugin_radar_parent_class)->dispose(gobject);
 622 }
 623 static void gis_plugin_radar_finalize(GObject *gobject)
 624 {
 625         g_debug("GisPluginRadar: finalize");
 626         GisPluginRadar *self = GIS_PLUGIN_RADAR(gobject);
 627         /* Free data */
 628         gis_http_free(self->conus_http);
 629         gis_http_free(self->sites_http);
 630         g_hash_table_destroy(self->sites);
 631         gtk_widget_destroy(self->config);
 632         G_OBJECT_CLASS(gis_plugin_radar_parent_class)->finalize(gobject);
 633
 634 }
 635 static void gis_plugin_radar_class_init(GisPluginRadarClass *klass)
 636 {
 637         g_debug("GisPluginRadar: class_init");
 638         GObjectClass *gobject_class = (GObjectClass*)klass;
 639         gobject_class->dispose  = gis_plugin_radar_dispose;
 640         gobject_class->finalize = gis_plugin_radar_finalize;
 641 }