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 #include <config.h>
  19 #include <gtk/gtk.h>
  20 #include <gtk/gtkgl.h>
  21 #include <gio/gio.h>
  22 #include <GL/gl.h>
  23 #include <math.h>
  24 #include <rsl.h>
  25
  26 #include <gis.h>
  27
  28 #include "radar.h"
  29 #include "../aweather-location.h"
  30
  31
  32 /**************************
  33  * Data loading functions *
  34  **************************/
  35 /* Convert a sweep to an 2d array of data points */
  36 static void _bscan_sweep(GisPluginRadar *self, Sweep *sweep, colormap_t *colormap,
  37                 guint8 **data, int *width, int *height)
  38 {
  39         /* Calculate max number of bins */
  40         int max_bins = 0;
  41         for (int i = 0; i < sweep->h.nrays; i++)
  42                 max_bins = MAX(max_bins, sweep->ray[i]->h.nbins);
  43
  44         /* Allocate buffer using max number of bins for each ray */
  45         guint8 *buf = g_malloc0(sweep->h.nrays * max_bins * 4);
  46
  47         /* Fill the data */
  48         for (int ri = 0; ri < sweep->h.nrays; ri++) {
  49                 Ray *ray  = sweep->ray[ri];
  50                 for (int bi = 0; bi < ray->h.nbins; bi++) {
  51                         /* copy RGBA into buffer */
  52                         //guint val   = dz_f(ray->range[bi]);
  53                         guint8 val   = (guint8)ray->h.f(ray->range[bi]);
  54                         guint  buf_i = (ri*max_bins+bi)*4;
  55                         buf[buf_i+0] = colormap->data[val][0];
  56                         buf[buf_i+1] = colormap->data[val][1];
  57                         buf[buf_i+2] = colormap->data[val][2];
  58                         buf[buf_i+3] = colormap->data[val][3]*0.75; // TESTING
  59                         if (val == BADVAL     || val == RFVAL      || val == APFLAG ||
  60                             val == NOTFOUND_H || val == NOTFOUND_V || val == NOECHO) {
  61                                 buf[buf_i+3] = 0x00; // transparent
  62                         }
  63                 }
  64         }
  65
  66         /* set output */
  67         *width  = max_bins;
  68         *height = sweep->h.nrays;
  69         *data   = buf;
  70 }
  71
  72 /* Load a sweep as the active texture */
  73 static void _load_sweep(GisPluginRadar *self, Sweep *sweep)
  74 {
  75         GisViewer *viewer = self->viewer;
  76         self->cur_sweep = sweep;
  77         int height, width;
  78         guint8 *data;
  79         _bscan_sweep(self, sweep, self->cur_colormap, &data, &width, &height);
  80         glDeleteTextures(1, &self->cur_sweep_tex);
  81         glGenTextures(1, &self->cur_sweep_tex);
  82         glBindTexture(GL_TEXTURE_2D, self->cur_sweep_tex);
  83         glPixelStorei(GL_PACK_ALIGNMENT, 1);
  84         glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
  85         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
  86         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
  87         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0,
  88                         GL_RGBA, GL_UNSIGNED_BYTE, data);
  89         g_free(data);
  90         gtk_widget_queue_draw(GTK_WIDGET(viewer));
  91 }
  92
  93 static void _load_colormap(GisPluginRadar *self, gchar *table)
  94 {
  95         /* Set colormap so we can draw it on expose */
  96         for (int i = 0; colormaps[i].name; i++)
  97                 if (g_str_equal(colormaps[i].name, table))
  98                         self->cur_colormap = &colormaps[i];
  99 }
 100
 101 /* Add selectors to the config area for the sweeps */
 102 static void _on_sweep_clicked(GtkRadioButton *button, gpointer _self);
 103 static void _load_radar_gui(GisPluginRadar *self, Radar *radar)
 104 {
 105         /* Clear existing items */
 106         GtkWidget *child = gtk_bin_get_child(GTK_BIN(self->config_body));
 107         if (child)
 108                 gtk_widget_destroy(child);
 109
 110         gdouble elev;
 111         guint rows = 1, cols = 1, cur_cols;
 112         gchar row_label_str[64], col_label_str[64], button_str[64];
 113         GtkWidget *row_label, *col_label, *button = NULL, *elev_box = NULL;
 114         GtkWidget *table = gtk_table_new(rows, cols, FALSE);
 115
 116         for (guint vi = 0; vi < radar->h.nvolumes; vi++) {
 117                 Volume *vol = radar->v[vi];
 118                 if (vol == NULL) continue;
 119                 rows++; cols = 1; elev = 0;
 120
 121                 /* Row label */
 122                 g_snprintf(row_label_str, 64, "<b>%s:</b>", vol->h.type_str);
 123                 row_label = gtk_label_new(row_label_str);
 124                 gtk_label_set_use_markup(GTK_LABEL(row_label), TRUE);
 125                 gtk_misc_set_alignment(GTK_MISC(row_label), 1, 0.5);
 126                 gtk_table_attach(GTK_TABLE(table), row_label,
 127                                 0,1, rows-1,rows, GTK_FILL,GTK_FILL, 5,0);
 128
 129                 for (guint si = 0; si < vol->h.nsweeps; si++) {
 130                         Sweep *sweep = vol->sweep[si];
 131                         if (sweep == NULL || sweep->h.elev == 0) continue;
 132                         if (sweep->h.elev != elev) {
 133                                 cols++;
 134                                 elev = sweep->h.elev;
 135
 136                                 /* Column label */
 137                                 g_object_get(table, "n-columns", &cur_cols, NULL);
 138                                 if (cols >  cur_cols) {
 139                                         g_snprintf(col_label_str, 64, "<b>%.2f°</b>", elev);
 140                                         col_label = gtk_label_new(col_label_str);
 141                                         gtk_label_set_use_markup(GTK_LABEL(col_label), TRUE);
 142                                         gtk_widget_set_size_request(col_label, 50, -1);
 143                                         gtk_table_attach(GTK_TABLE(table), col_label,
 144                                                         cols-1,cols, 0,1, GTK_FILL,GTK_FILL, 0,0);
 145                                 }
 146
 147                                 elev_box = gtk_hbox_new(TRUE, 0);
 148                                 gtk_table_attach(GTK_TABLE(table), elev_box,
 149                                                 cols-1,cols, rows-1,rows, GTK_FILL,GTK_FILL, 0,0);
 150                         }
 151
 152
 153                         /* Button */
 154                         g_snprintf(button_str, 64, "%3.2f", elev);
 155                         button = gtk_radio_button_new_with_label_from_widget(
 156                                         GTK_RADIO_BUTTON(button), button_str);
 157                         gtk_widget_set_size_request(button, -1, 26);
 158                         //button = gtk_radio_button_new_from_widget(GTK_RADIO_BUTTON(button));
 159                         //gtk_widget_set_size_request(button, -1, 22);
 160                         g_object_set(button, "draw-indicator", FALSE, NULL);
 161                         gtk_box_pack_end(GTK_BOX(elev_box), button, TRUE, TRUE, 0);
 162
 163                         g_object_set_data(G_OBJECT(button), "type",  vol->h.type_str);
 164                         g_object_set_data(G_OBJECT(button), "sweep", sweep);
 165                         g_signal_connect(button, "clicked", G_CALLBACK(_on_sweep_clicked), self);
 166                 }
 167         }
 168         gtk_container_add(GTK_CONTAINER(self->config_body), table);
 169         gtk_widget_show_all(table);
 170 }
 171
 172 /* Load a radar from a decompressed file */
 173 static void _load_radar(GisPluginRadar *self, gchar *radar_file)
 174 {
 175         char *dir  = g_path_get_dirname(radar_file);
 176         char *site = g_path_get_basename(dir);
 177         g_free(dir);
 178         g_debug("GisPluginRadar: load_radar - Loading new radar");
 179         RSL_read_these_sweeps("all", NULL);
 180         Radar *radar = self->cur_radar = RSL_wsr88d_to_radar(radar_file, site);
 181         if (radar == NULL) {
 182                 g_warning("fail to load radar: path=%s, site=%s", radar_file, site);
 183                 g_free(site);
 184                 return;
 185         }
 186         g_free(site);
 187
 188         /* Load the first sweep by default */
 189         if (radar->h.nvolumes < 1 || radar->v[0]->h.nsweeps < 1) {
 190                 g_warning("No sweeps found\n");
 191         } else {
 192                 /* load first available sweep */
 193                 for (int vi = 0; vi < radar->h.nvolumes; vi++) {
 194                         if (radar->v[vi]== NULL) continue;
 195                         for (int si = 0; si < radar->v[vi]->h.nsweeps; si++) {
 196                                 if (radar->v[vi]->sweep[si]== NULL) continue;
 197                                 _load_colormap(self, radar->v[vi]->h.type_str);
 198                                 _load_sweep(self, radar->v[vi]->sweep[si]);
 199                                 break;
 200                         }
 201                         break;
 202                 }
 203         }
 204
 205         _load_radar_gui(self, radar);
 206 }
 207
 208 typedef struct {
 209         GisPluginRadar *self;
 210         gchar *radar_file;
 211 } decompressed_t;
 212
 213 static void _decompressed_cb(GPid pid, gint status, gpointer _udata)
 214 {
 215         g_debug("GisPluginRadar: decompressed_cb");
 216         decompressed_t *udata = _udata;
 217         if (status != 0) {
 218                 g_warning("wsr88ddec exited with status %d", status);
 219                 return;
 220         }
 221         _load_radar(udata->self, udata->radar_file);
 222         g_spawn_close_pid(pid);
 223         g_free(udata->radar_file);
 224         g_free(udata);
 225 }
 226
 227 static void _cache_chunk_cb(char *path, goffset cur, goffset total, gpointer _self)
 228 {
 229         GisPluginRadar *self = GIS_PLUGIN_RADAR(_self);
 230         double percent = (double)cur/total;
 231
 232         //g_debug("GisPluginRadar: cache_chunk_cb - %lld/%lld = %.2f%%",
 233         //              cur, total, percent*100);
 234
 235         gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(self->progress_bar), MIN(percent, 1.0));
 236
 237         gchar *msg = g_strdup_printf("Loading radar... %5.1f%% (%.2f/%.2f MB)",
 238                         percent*100, (double)cur/1000000, (double)total/1000000);
 239         gtk_label_set_text(GTK_LABEL(self->progress_label), msg);
 240         g_free(msg);
 241 }
 242
 243 static void _cache_done_cb(char *path, gboolean updated, gpointer _self)
 244 {
 245         g_debug("GisPluginRadar: cache_done_cb - updated = %d", updated);
 246         GisPluginRadar *self = GIS_PLUGIN_RADAR(_self);
 247         char *decompressed = g_strconcat(path, ".raw", NULL);
 248         if (!updated && g_file_test(decompressed, G_FILE_TEST_EXISTS)) {
 249                 _load_radar(self, decompressed);
 250                 return;
 251         }
 252
 253         decompressed_t *udata = g_malloc(sizeof(decompressed_t));
 254         udata->self       = self;
 255         udata->radar_file = decompressed;
 256         g_debug("GisPluginRadar: cache_done_cb - File updated, decompressing..");
 257         char *argv[] = {"wsr88ddec", path, decompressed, NULL};
 258         GPid pid;
 259         GError *error = NULL;
 260         g_spawn_async(
 261                 NULL,    // const gchar *working_directory,
 262                 argv,    // gchar **argv,
 263                 NULL,    // gchar **envp,
 264                 G_SPAWN_SEARCH_PATH|
 265                 G_SPAWN_DO_NOT_REAP_CHILD,
 266                          // GSpawnFlags flags,
 267                 NULL,    // GSpawnChildSetupFunc child_setup,
 268                 NULL,    // gpointer user_data,
 269                 &pid,    // GPid *child_pid,
 270                 &error); // GError **error
 271         if (error) {
 272                 gchar *message = g_strdup_printf("Unable to decompress WSR88D data: %s",
 273                                 error->message);
 274                 g_warning("%s", message);
 275                 GtkWidget *child = gtk_bin_get_child(GTK_BIN(self->config_body));
 276                 if (child)
 277                         gtk_widget_destroy(child);
 278                 gtk_container_add(GTK_CONTAINER(self->config_body), gtk_label_new(message));
 279                 gtk_widget_show_all(self->config_body);
 280                 g_error_free(error);
 281                 g_free(message);
 282         }
 283         g_child_watch_add(pid, _decompressed_cb, udata);
 284 }
 285
 286 static void _set_radar(GisPluginRadar *self, const char *site, const char *time)
 287 {
 288         if (!site || !time)
 289                 return;
 290         g_debug("GisPluginRadar: set_radar - %s - %s", site, time);
 291
 292         /* Set up progress bar */
 293         GtkWidget *child = gtk_bin_get_child(GTK_BIN(self->config_body));
 294         if (child) gtk_widget_destroy(child);
 295
 296         GtkWidget *vbox = gtk_vbox_new(FALSE, 10);
 297         gtk_container_set_border_width(GTK_CONTAINER(vbox), 10);
 298         self->progress_bar   = gtk_progress_bar_new();
 299         self->progress_label = gtk_label_new("Loading radar...");
 300         gtk_box_pack_start(GTK_BOX(vbox), self->progress_bar,   FALSE, FALSE, 0);
 301         gtk_box_pack_start(GTK_BOX(vbox), self->progress_label, FALSE, FALSE, 0);
 302         gtk_container_add(GTK_CONTAINER(self->config_body), vbox);
 303         gtk_widget_show_all(self->config_body);
 304
 305         /* Clear radar */
 306         if (self->cur_radar)
 307                 RSL_free_radar(self->cur_radar);
 308         self->cur_radar = NULL;
 309         self->cur_sweep = NULL;
 310         gtk_widget_queue_draw(GTK_WIDGET(self->viewer));
 311
 312         /* Start loading the new radar */
 313         soup_session_abort(self->http->soup);
 314         /* format: http://mesonet.agron.iastate.edu/data/nexrd2/raw/KABR/KABR_20090510_0323 */
 315         gchar *base  = gis_prefs_get_string(self->prefs, "aweather/nexrad_url", NULL);
 316         gchar *local = g_strdup_printf("%s/%s_%s", site, site, time);
 317         gchar *uri   = g_strconcat(base, "/", local, NULL);
 318         GisCacheType mode = gis_viewer_get_offline(self->viewer) ? GIS_LOCAL : GIS_UPDATE;
 319         gchar *path  = gis_http_fetch(self->http, uri, local, mode, _cache_chunk_cb, self);
 320         if (path) {
 321                 _cache_done_cb(path, TRUE, self);
 322                 g_free(path);
 323         }
 324 }
 325
 326
 327 /*************
 328  * Callbacks *
 329  *************/
 330 static void _on_sweep_clicked(GtkRadioButton *button, gpointer _self)
 331 {
 332         GisPluginRadar *self = GIS_PLUGIN_RADAR(_self);
 333         _load_colormap(self, g_object_get_data(G_OBJECT(button), "type" ));
 334         _load_sweep   (self, g_object_get_data(G_OBJECT(button), "sweep"));
 335 }
 336
 337 static void _on_time_changed(GisViewer *viewer, const char *time, gpointer _self)
 338 {
 339         g_debug("GisPluginRadar: _on_time_changed");
 340         GisPluginRadar *self = GIS_PLUGIN_RADAR(_self);
 341         g_free(self->cur_time);
 342         self->cur_time = g_strdup(time);
 343         _set_radar(self, self->cur_site, self->cur_time);
 344 }
 345
 346 static void _on_location_changed(GisViewer *viewer,
 347                 gdouble lat, gdouble lon, gdouble elev,
 348                 gpointer _self)
 349 {
 350         g_debug("GisPluginRadar: _on_location_changed");
 351         GisPluginRadar *self = GIS_PLUGIN_RADAR(_self);
 352         gdouble min_dist = EARTH_R / 5;
 353         city_t *city, *min_city = NULL;
 354         for (city = cities; city->type; city++) {
 355                 if (city->type != LOCATION_CITY)
 356                         continue;
 357                 gdouble city_loc[3] = {};
 358                 gdouble eye_loc[3]  = {lat, lon, elev};
 359                 lle2xyz(city->lat, city->lon, city->elev,
 360                                 &city_loc[0], &city_loc[1], &city_loc[2]);
 361                 lle2xyz(lat, lon, elev,
 362                                 &eye_loc[0], &eye_loc[1], &eye_loc[2]);
 363                 gdouble dist = distd(city_loc, eye_loc);
 364                 if (dist < min_dist) {
 365                         min_dist = dist;
 366                         min_city = city;
 367                 }
 368         }
 369         static city_t *last_city = NULL;
 370         if (min_city && min_city != last_city) {
 371                 self->cur_site = min_city->code;
 372                 _set_radar(self, self->cur_site, self->cur_time);
 373         }
 374         last_city = min_city;
 375 }
 376
 377 static gpointer _draw_radar(GisCallback *callback, gpointer _self)
 378 {
 379         GisPluginRadar *self = GIS_PLUGIN_RADAR(_self);
 380
 381         /* Draw wsr88d */
 382         if (self->cur_sweep == NULL)
 383                 return NULL;
 384         g_debug("GisPluginRadar: _draw_radar");
 385         Sweep *sweep = self->cur_sweep;
 386
 387         g_debug("GisPluginRadar: _draw_radar - setting camera");
 388         Radar_header *h = &self->cur_radar->h;
 389         gdouble lat  = (double)h->latd + (double)h->latm/60 + (double)h->lats/(60*60);
 390         gdouble lon  = (double)h->lond + (double)h->lonm/60 + (double)h->lons/(60*60);
 391         gdouble elev = h->height;
 392         gis_viewer_center_position(self->viewer, lat, lon, elev);
 393
 394         glDisable(GL_ALPHA_TEST);
 395         glDisable(GL_CULL_FACE);
 396         glDisable(GL_LIGHTING);
 397         glEnable(GL_TEXTURE_2D);
 398         glEnable(GL_POLYGON_OFFSET_FILL);
 399         glPolygonOffset(1.0, -2.0);
 400         glColor4f(1,1,1,1);
 401
 402         /* Draw the rays */
 403         glBindTexture(GL_TEXTURE_2D, self->cur_sweep_tex);
 404         g_message("Tex = %d", self->cur_sweep_tex);
 405         glBegin(GL_TRIANGLE_STRIP);
 406         for (int ri = 0; ri <= sweep->h.nrays; ri++) {
 407                 Ray  *ray = NULL;
 408                 double angle = 0;
 409                 if (ri < sweep->h.nrays) {
 410                         ray = sweep->ray[ri];
 411                         angle = deg2rad(ray->h.azimuth - ((double)ray->h.beam_width/2.));
 412                 } else {
 413                         /* Do the right side of the last sweep */
 414                         ray = sweep->ray[ri-1];
 415                         angle = deg2rad(ray->h.azimuth + ((double)ray->h.beam_width/2.));
 416                 }
 417
 418                 double lx = sin(angle);
 419                 double ly = cos(angle);
 420
 421                 double near_dist = ray->h.range_bin1;
 422                 double far_dist  = ray->h.nbins*ray->h.gate_size + ray->h.range_bin1;
 423
 424                 /* (find middle of bin) / scale for opengl */
 425                 // near left
 426                 glTexCoord2f(0.0, (double)ri/sweep->h.nrays-0.01);
 427                 glVertex3f(lx*near_dist, ly*near_dist, 2.0);
 428
 429                 // far  left
 430                 // todo: correct range-height function
 431                 double height = sin(deg2rad(ray->h.elev)) * far_dist;
 432                 glTexCoord2f(1.0, (double)ri/sweep->h.nrays-0.01);
 433                 glVertex3f(lx*far_dist,  ly*far_dist, height);
 434         }
 435         glEnd();
 436         //g_print("ri=%d, nr=%d, bw=%f\n", _ri, sweep->h.nrays, sweep->h.beam_width);
 437
 438         /* Texture debug */
 439         //glBegin(GL_QUADS);
 440         //glTexCoord2d( 0.,  0.); glVertex3f(-500.,   0., 0.); // bot left
 441         //glTexCoord2d( 0.,  1.); glVertex3f(-500., 500., 0.); // top left
 442         //glTexCoord2d( 1.,  1.); glVertex3f( 0.,   500., 3.); // top right
 443         //glTexCoord2d( 1.,  0.); glVertex3f( 0.,     0., 3.); // bot right
 444         //glEnd();
 445
 446         return NULL;
 447 }
 448
 449 static gpointer _draw_hud(GisCallback *callback, gpointer _self)
 450 {
 451         GisPluginRadar *self = GIS_PLUGIN_RADAR(_self);
 452         if (self->cur_sweep == NULL)
 453                 return NULL;
 454         g_debug("GisPluginRadar: _draw_hud");
 455
 456         /* Print the color table */
 457         glMatrixMode(GL_MODELVIEW ); glLoadIdentity();
 458         glMatrixMode(GL_PROJECTION); glLoadIdentity();
 459         glDisable(GL_TEXTURE_2D);
 460         glDisable(GL_ALPHA_TEST);
 461         glDisable(GL_CULL_FACE);
 462         glDisable(GL_LIGHTING);
 463         glEnable(GL_COLOR_MATERIAL);
 464         glBegin(GL_QUADS);
 465         int i;
 466         for (i = 0; i < 256; i++) {
 467                 glColor4ubv(self->cur_colormap->data[i]);
 468                 glVertex3f(-1.0, (float)((i  ) - 256/2)/(256/2), 0.0); // bot left
 469                 glVertex3f(-1.0, (float)((i+1) - 256/2)/(256/2), 0.0); // top left
 470                 glVertex3f(-0.9, (float)((i+1) - 256/2)/(256/2), 0.0); // top right
 471                 glVertex3f(-0.9, (float)((i  ) - 256/2)/(256/2), 0.0); // bot right
 472         }
 473         glEnd();
 474
 475         return NULL;
 476 }
 477
 478
 479 /***********
 480  * Methods *
 481  ***********/
 482 GisPluginRadar *gis_plugin_radar_new(GisViewer *viewer, GisPrefs *prefs)
 483 {
 484         /* TODO: move to constructor if possible */
 485         g_debug("GisPluginRadar: new");
 486         GisPluginRadar *self = g_object_new(GIS_TYPE_PLUGIN_RADAR, NULL);
 487         self->viewer = viewer;
 488         self->prefs  = prefs;
 489         self->time_changed_id = g_signal_connect(viewer, "time-changed",
 490                         G_CALLBACK(_on_time_changed), self);
 491         self->location_changed_id = g_signal_connect(viewer, "location-changed",
 492                         G_CALLBACK(_on_location_changed), self);
 493
 494         for (city_t *city = cities; city->type; city++) {
 495                 if (city->type != LOCATION_CITY)
 496                         continue;
 497                 g_debug("Adding marker for %s %s", city->code, city->label);
 498                 GisMarker *marker = gis_marker_new(city->label);
 499                 gis_point_set_lle(gis_object_center(GIS_OBJECT(marker)),
 500                                 city->lat, city->lon, city->elev);
 501                 GIS_OBJECT(marker)->lod = EARTH_R/2;
 502                 gis_viewer_add(self->viewer, GIS_OBJECT(marker), GIS_LEVEL_OVERLAY, FALSE);
 503         }
 504
 505         /* Add renderers */
 506         GisCallback *radar_cb = gis_callback_new(_draw_radar, self);
 507         GisCallback *hud_cb   = gis_callback_new(_draw_hud, self);
 508
 509         gis_viewer_add(viewer, GIS_OBJECT(radar_cb),    GIS_LEVEL_WORLD, TRUE);
 510         gis_viewer_add(viewer, GIS_OBJECT(hud_cb),      GIS_LEVEL_HUD,   FALSE);
 511
 512         return self;
 513 }
 514
 515 static GtkWidget *gis_plugin_radar_get_config(GisPlugin *_self)
 516 {
 517         GisPluginRadar *self = GIS_PLUGIN_RADAR(_self);
 518         return self->config_body;
 519 }
 520
 521
 522 /****************
 523  * GObject code *
 524  ****************/
 525 /* Plugin init */
 526 static void gis_plugin_radar_plugin_init(GisPluginInterface *iface);
 527 G_DEFINE_TYPE_WITH_CODE(GisPluginRadar, gis_plugin_radar, G_TYPE_OBJECT,
 528                 G_IMPLEMENT_INTERFACE(GIS_TYPE_PLUGIN,
 529                         gis_plugin_radar_plugin_init));
 530 static void gis_plugin_radar_plugin_init(GisPluginInterface *iface)
 531 {
 532         g_debug("GisPluginRadar: plugin_init");
 533         /* Add methods to the interface */
 534         iface->get_config = gis_plugin_radar_get_config;
 535 }
 536 /* Class/Object init */
 537 static void gis_plugin_radar_init(GisPluginRadar *self)
 538 {
 539         g_debug("GisPluginRadar: class_init");
 540         /* Set defaults */
 541         self->http = gis_http_new("/nexrad/level2/");
 542         self->config_body = gtk_alignment_new(0, 0, 1, 1);
 543         gtk_container_set_border_width(GTK_CONTAINER(self->config_body), 5);
 544         gtk_container_add(GTK_CONTAINER(self->config_body), gtk_label_new("No radar loaded"));
 545 }
 546 static void gis_plugin_radar_dispose(GObject *gobject)
 547 {
 548         g_debug("GisPluginRadar: dispose");
 549         GisPluginRadar *self = GIS_PLUGIN_RADAR(gobject);
 550         g_signal_handler_disconnect(self->viewer, self->time_changed_id);
 551         /* Drop references */
 552         G_OBJECT_CLASS(gis_plugin_radar_parent_class)->dispose(gobject);
 553 }
 554 static void gis_plugin_radar_finalize(GObject *gobject)
 555 {
 556         g_debug("GisPluginRadar: finalize");
 557         GisPluginRadar *self = GIS_PLUGIN_RADAR(gobject);
 558         /* Free data */
 559         gis_http_free(self->http);
 560         G_OBJECT_CLASS(gis_plugin_radar_parent_class)->finalize(gobject);
 561
 562 }
 563 static void gis_plugin_radar_class_init(GisPluginRadarClass *klass)
 564 {
 565         g_debug("GisPluginRadar: class_init");
 566         GObjectClass *gobject_class = (GObjectClass*)klass;
 567         gobject_class->dispose  = gis_plugin_radar_dispose;
 568         gobject_class->finalize = gis_plugin_radar_finalize;
 569 }
 570