X-Git-Url: http://pileus.org/git/?p=grits;a=blobdiff_plain;f=src%2Fplugin-radar.c;h=3ac36827a1c585ed9cc446fd87a78ca9e1de32d5;hp=f4b68d7ac0ec749505b668af54a2480648149397;hb=4fcef1604ab68160bb3fc51755cc87d23e215fee;hpb=8efa2df296f672505211b4360c10279d9d57be22 diff --git a/src/plugin-radar.c b/src/plugin-radar.c index f4b68d7..3ac3682 100644 --- a/src/plugin-radar.c +++ b/src/plugin-radar.c @@ -8,8 +8,10 @@ #include "aweather-gui.h" #include "plugin-radar.h" +#include "data.h" GtkWidget *drawing; +GtkWidget *config_body; static Sweep *cur_sweep = NULL; // make this not global static int nred, ngreen, nblue; static char red[256], green[256], blue[256]; @@ -18,6 +20,10 @@ static guint sweep_tex = 0; static AWeatherGui *gui = NULL; static Radar *radar = NULL; +/************************** + * Data loading functions * + **************************/ +/* return a GL alpha value for a radar pixle */ static guint8 get_alpha(guint8 db) { if (db == BADVAL) return 0; @@ -67,6 +73,7 @@ static void bscan_sweep(Sweep *sweep, guint8 **data, int *width, int *height) /* Load a sweep as the active texture */ static void load_sweep(Sweep *sweep) { + aweather_gui_gl_begin(gui); cur_sweep = sweep; int height, width; guint8 *data; @@ -81,24 +88,121 @@ static void load_sweep(Sweep *sweep) g_free(data); gdk_window_invalidate_rect(drawing->window, &drawing->allocation, FALSE); gdk_window_process_updates(drawing->window, FALSE); + aweather_gui_gl_end(gui); } -/* Load the default sweep */ -static gboolean map(GtkWidget *da, GdkEvent *event, gpointer user_data) +/* Add selectors to the config area for the sweeps */ +static void load_radar_gui(Radar *radar) { - g_message("radar:map"); - aweather_gui_gl_begin(gui); - Sweep *first = radar->v[0]->sweep[0]; - if (cur_sweep == NULL) - load_sweep(first); - aweather_gui_gl_end(gui); + /* Clear existing items */ + GtkWidget *child = gtk_bin_get_child(GTK_BIN(config_body)); + if (child) + gtk_widget_destroy(child); - return FALSE; + GtkWidget *hbox = gtk_hbox_new(TRUE, 0); + GtkWidget *button = NULL; + int vi = 0, si = 0; + for (vi = 0; vi < radar->h.nvolumes; vi++) { + Volume *vol = radar->v[vi]; + if (vol == NULL) continue; + g_message(" adding volume: %d", vi); + GtkWidget *vbox = gtk_vbox_new(TRUE, 0); + for (si = vol->h.nsweeps-1; si >= 0; si--) { + Sweep *sweep = vol->sweep[si]; + if (sweep == NULL) continue; + char *label = g_strdup_printf("Tilt: %.2f (%s)", sweep->h.elev, vol->h.type_str); + g_message(" adding sweep: %d - %s", si, label); + button = gtk_radio_button_new_with_label_from_widget(GTK_RADIO_BUTTON(button), label); + g_object_set(button, "draw-indicator", FALSE, NULL); + g_signal_connect_swapped(button, "clicked", G_CALLBACK(load_sweep), sweep); + gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, TRUE, 0); + g_free(label); + } + g_message("adding vbox to hbox"); + gtk_box_set_homogeneous(GTK_BOX(vbox), FALSE); + gtk_box_pack_start(GTK_BOX(hbox), vbox, TRUE, TRUE, 0); + } + g_message("adding hbox to scroll"); + gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(config_body), hbox); + gtk_widget_show_all(hbox); } +/* Load a radar from a file */ +static void load_radar_rsl(GPid pid, gint status, gpointer _path) +{ + gchar *path = _path; + if (status != 0) { + g_warning("wsr88ddec exited with status %d", status); + return; + } + char *site = g_path_get_basename(g_path_get_dirname(path)); + if (radar) RSL_free_radar(radar); + RSL_read_these_sweeps("all", NULL); + radar = RSL_wsr88d_to_radar(path, site); + if (radar == NULL) { + g_warning("fail to load radar: path=%s, site=%s", path, site); + return; + } + + /* TODO: replace this with a better color table */ + g_message("loading color table"); + RSL_load_refl_color_table(); + RSL_get_color_table(RSL_RED_TABLE, red, &nred); + RSL_get_color_table(RSL_GREEN_TABLE, green, &ngreen); + RSL_get_color_table(RSL_BLUE_TABLE, blue, &nblue); + + /* Load the first sweep by default */ + if (radar->h.nvolumes < 1 || radar->v[0]->h.nsweeps < 1) { + g_warning("No sweeps found\n"); + } else { + /* load first available sweep */ + for (int vi = 0; vi < radar->h.nvolumes; vi++) { + if (radar->v[vi]== NULL) continue; + for (int si = 0; si < radar->v[vi]->h.nsweeps; si++) { + if (radar->v[vi]->sweep[si]== NULL) continue; + load_sweep(radar->v[vi]->sweep[si]); + break; + } + break; + } + } + + load_radar_gui(radar); +} + +/* decompress a radar file, then chain to the actuall loading function */ +static void load_radar(char *path, gpointer user_data) +{ + char *raw = g_strconcat(path, ".raw", NULL); + if (g_file_test(raw, G_FILE_TEST_EXISTS)) { + load_radar_rsl(0, 0, raw); + } else { + char *argv[] = {"./wsr88ddec", path, raw, NULL}; + GPid pid; + GError *error = NULL; + g_spawn_async( + NULL, // const gchar *working_directory, + argv, // gchar **argv, + NULL, // gchar **envp, + G_SPAWN_DO_NOT_REAP_CHILD, // GSpawnFlags flags, + NULL, // GSpawnChildSetupFunc child_setup, + NULL, // gpointer user_data, + &pid, // GPid *child_pid, + &error); // GError **error + if (error) + g_warning("failed to decompress WSR88D data: %s", error->message); + g_child_watch_add(pid, load_radar_rsl, raw); + } +} + +/************* + * Callbacks * + *************/ static gboolean expose(GtkWidget *da, GdkEventExpose *event, gpointer user_data) { g_message("radar:expose"); + if (cur_sweep == NULL) + return FALSE; Sweep *sweep = cur_sweep; /* Draw the rays */ @@ -163,56 +267,65 @@ static gboolean expose(GtkWidget *da, GdkEventExpose *event, gpointer user_data) return FALSE; } -//static void set_site(AWeatherView *view, char *site, gpointer user_data) -//{ -// g_message("location changed to %s", site); -//} +static void set_time(AWeatherView *view, char *time, gpointer user_data) +{ + g_message("radar:setting time"); + // format: http://mesonet.agron.iastate.edu/data/nexrd2/raw/KABR/KABR_20090510_0323 + char *site = aweather_view_get_location(view); + char *base = "http://mesonet.agron.iastate.edu/data/"; + char *path = g_strdup_printf("nexrd2/raw/K%s/K%s_%s", site, site, time); + //g_message("caching %s/%s", base, path); + cache_file(base, path, load_radar, NULL); +} + +static void set_site(AWeatherView *view, char *site, gpointer user_data) +{ + g_message("Loading wsr88d list for %s", site); + gchar *data; + gsize length; + GError *error = NULL; + char *list_uri = g_strdup_printf("http://mesonet.agron.iastate.edu/data/nexrd2/raw/K%s/dir.list", site); + GFile *list = g_file_new_for_uri(list_uri); + g_file_load_contents(list, NULL, &data, &length, NULL, &error); + if (error) { + g_warning("Error loading list for %s: %s", site, error->message); + return; + } + gchar **lines = g_strsplit(data, "\n", -1); + GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time")); + GtkListStore *lstore = GTK_LIST_STORE(gtk_tree_view_get_model(tview)); + gtk_list_store_clear(lstore); + radar = NULL; + for (int i = 0; lines[i] && lines[i][0]; i++) { + // format: `841907 KABR_20090510_0159' + //g_message("\tadding %p [%s]", lines[i], lines[i]); + char **parts = g_strsplit(lines[i], " ", 2); + GtkTreeIter iter; + gtk_list_store_append(lstore, &iter); + gtk_list_store_set(lstore, &iter, 0, parts[1]+5, -1); + if (i == 0) + set_time(view, parts[1]+5, NULL); + } +} +/* Init */ gboolean radar_init(AWeatherGui *_gui) { gui = _gui; - drawing = GTK_WIDGET(aweather_gui_get_drawing(gui)); - GtkNotebook *config = aweather_gui_get_tabs(gui); - - /* Parse hard coded file.. */ - RSL_read_these_sweeps("all", NULL); - //RSL_read_these_sweeps("all", NULL); - radar = RSL_wsr88d_to_radar("/scratch/aweather/data/level2/KNQA_20090501_1925.raw", "KNQA"); - RSL_load_refl_color_table(); - RSL_get_color_table(RSL_RED_TABLE, red, &nred); - RSL_get_color_table(RSL_GREEN_TABLE, green, &ngreen); - RSL_get_color_table(RSL_BLUE_TABLE, blue, &nblue); - if (radar->h.nvolumes < 1 || radar->v[0]->h.nsweeps < 1) - g_print("No sweeps found\n"); + drawing = aweather_gui_get_widget(gui, "drawing"); + GtkNotebook *config = GTK_NOTEBOOK(aweather_gui_get_widget(gui, "tabs")); + AWeatherView *view = aweather_gui_get_view(gui); /* Add configuration tab */ - GtkWidget *scroll = gtk_scrolled_window_new(NULL, NULL); - GtkWidget *hbox = gtk_hbox_new(TRUE, 0); - GtkWidget *button = NULL; - int vi = 0, si = 0; - for (vi = 0; vi < radar->h.nvolumes; vi++) { - Volume *vol = radar->v[vi]; - if (vol == NULL) continue; - GtkWidget *vbox = gtk_vbox_new(TRUE, 0); - gtk_box_pack_start(GTK_BOX(hbox), vbox, TRUE, TRUE, 0); - for (si = 0; si < vol->h.nsweeps; si++) { - Sweep *sweep = vol->sweep[si]; - if (sweep == NULL) continue; - char *label = g_strdup_printf("Tilt: %.2f (%s)", sweep->h.elev, vol->h.type_str); - button = gtk_radio_button_new_with_label_from_widget(GTK_RADIO_BUTTON(button), label); - g_signal_connect_swapped(button, "clicked", G_CALLBACK(load_sweep), sweep); - gtk_box_pack_start(GTK_BOX(vbox), button, TRUE, TRUE, 0); - g_free(label); - } - } - GtkWidget *label = gtk_label_new("Radar"); - gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(scroll), hbox); - gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); - gtk_notebook_append_page(GTK_NOTEBOOK(config), scroll, label); + config_body = gtk_scrolled_window_new(NULL, NULL); + gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(config_body), gtk_label_new("No radar loaded")); + gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(config_body), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); + gtk_notebook_append_page(GTK_NOTEBOOK(config), config_body, gtk_label_new("Radar")); /* Set up OpenGL Stuff */ - g_signal_connect(drawing, "map-event", G_CALLBACK(map), NULL); - g_signal_connect(drawing, "expose-event", G_CALLBACK(expose), NULL); + g_signal_connect(drawing, "expose-event", G_CALLBACK(expose), NULL); + g_signal_connect(view, "location-changed", G_CALLBACK(set_site), NULL); + g_signal_connect(view, "time-changed", G_CALLBACK(set_time), NULL); return TRUE; }