]> Pileus Git - aweather/blobdiff - src/plugins/radar.c
Add clickable radar markers
[aweather] / src / plugins / radar.c
index 75fc3783de71e9399ec75d570ae9f40ab7ef8f80..2dcea83986dc6a0ad45400998a8c0e85d8789b6b 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009-2010 Andy Spencer <andy753421@gmail.com>
+ * Copyright (C) 2009-2012 Andy Spencer <andy753421@gmail.com>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  */
 
 #define _XOPEN_SOURCE
-#include <sys/time.h>
+#include <time.h>
 #include <config.h>
 #include <glib/gstdio.h>
 #include <gtk/gtk.h>
-#include <gtk/gtkgl.h>
 #include <gio/gio.h>
-#include <GL/gl.h>
 #include <math.h>
 #include <rsl.h>
 
-#include <gis.h>
+#include <grits.h>
 
 #include "radar.h"
 #include "level2.h"
 #include "../aweather-location.h"
 
-void _gtk_bin_set_child(GtkBin *bin, GtkWidget *new)
+#include "compat.h"
+
+static void aweather_bin_set_child(GtkBin *bin, GtkWidget *new)
 {
        GtkWidget *old = gtk_bin_get_child(bin);
        if (old)
@@ -42,16 +42,20 @@ void _gtk_bin_set_child(GtkBin *bin, GtkWidget *new)
 }
 
 static gchar *_find_nearest(time_t time, GList *files,
-               gsize offset, gchar *format)
+               gsize offset)
 {
-       g_debug("GisPluginRadar: _find_nearest ...");
+       g_debug("RadarSite: find_nearest ...");
        time_t  nearest_time = 0;
        char   *nearest_file = NULL;
 
        struct tm tm = {};
        for (GList *cur = files; cur; cur = cur->next) {
                gchar *file = cur->data;
-               strptime(file+offset, format, &tm);
+               sscanf(file+offset, "%4d%2d%2d_%2d%2d",
+                               &tm.tm_year, &tm.tm_mon, &tm.tm_mday,
+                               &tm.tm_hour, &tm.tm_min);
+               tm.tm_year -= 1900;
+               tm.tm_mon  -= 1;
                if (ABS(time - mktime(&tm)) <
                    ABS(time - nearest_time)) {
                        nearest_file = file;
@@ -59,7 +63,7 @@ static gchar *_find_nearest(time_t time, GList *files,
                }
        }
 
-       g_debug("GisPluginRadar: _find_nearest = %s", nearest_file);
+       g_debug("RadarSite: find_nearest = %s", nearest_file);
        if (nearest_file)
                return g_strdup(nearest_file);
        else
@@ -77,28 +81,28 @@ typedef enum {
 } RadarSiteStatus;
 struct _RadarSite {
        /* Information */
-       city_t    *city;
-       GisMarker *marker;     // Map marker for libgis
-       gpointer  *marker_ref; // Reference to maker
+       city_t         *city;
+       GritsMarker    *marker;      // Map marker for grits
 
        /* Stuff from the parents */
-       GisViewer     *viewer;
-       GisHttp       *http;
-       GisPrefs      *prefs;
-       GtkWidget     *pconfig;
+       GritsViewer    *viewer;
+       GritsHttp      *http;
+       GritsPrefs     *prefs;
+       GtkWidget      *pconfig;
 
        /* When loaded */
-       RadarSiteStatus status;     // Loading status for the site
+       gboolean        hidden;
+       RadarSiteStatus status;      // Loading status for the site
        GtkWidget      *config;
-       AWeatherLevel2 *level2;     // The Level2 structure for the current volume
-       gpointer        level2_ref; // GisViewer reference to the added radar
+       AWeatherLevel2 *level2;      // The Level2 structure for the current volume
 
        /* Internal data */
-       time_t   time;        // Current timestamp of the level2
-       gchar   *message;     // Error message set while updating
-       guint    time_id;     // "time-changed"     callback ID
-       guint    refresh_id;  // "refresh"          callback ID
-       guint    location_id; // "locaiton-changed" callback ID
+       time_t          time;        // Current timestamp of the level2
+       gchar          *message;     // Error message set while updating
+       guint           time_id;     // "time-changed"     callback ID
+       guint           refresh_id;  // "refresh"          callback ID
+       guint           location_id; // "locaiton-changed" callback ID
+       guint           idle_source; // _site_update_end idle source
 };
 
 /* format: http://mesonet.agron.iastate.edu/data/nexrd2/raw/KABR/KABR_20090510_0323 */
@@ -118,42 +122,44 @@ gboolean _site_update_end(gpointer _site)
 {
        RadarSite *site = _site;
        if (site->message) {
-               g_warning("GisPluginRadar: _update_end - %s", site->message);
-               _gtk_bin_set_child(GTK_BIN(site->config), gtk_label_new(site->message));
+               g_warning("RadarSite: update_end - %s", site->message);
+               const char *fmt = "http://forecast.weather.gov/product.php?site=NWS&product=FTM&format=TXT&issuedby=%s";
+               char       *uri = g_strdup_printf(fmt, site->city->code+1);
+               GtkWidget  *box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
+               GtkWidget  *msg = gtk_label_new(site->message);
+               GtkWidget  *btn = gtk_link_button_new_with_label(uri, "View Radar Status");
+               gtk_box_set_homogeneous(GTK_BOX(box), TRUE);
+               gtk_box_pack_start(GTK_BOX(box), msg, TRUE, TRUE, 0);
+               gtk_box_pack_start(GTK_BOX(box), btn, TRUE, TRUE, 0);
+               aweather_bin_set_child(GTK_BIN(site->config), box);
+               g_free(uri);
        } else {
-               _gtk_bin_set_child(GTK_BIN(site->config),
+               aweather_bin_set_child(GTK_BIN(site->config),
                                aweather_level2_get_config(site->level2));
        }
        site->status = STATUS_LOADED;
+       site->idle_source = 0;
        return FALSE;
 }
 gpointer _site_update_thread(gpointer _site)
 {
        RadarSite *site = _site;
-       g_debug("GisPluginRadar: _update - %s", site->city->code);
-       site->status = STATUS_LOADING;
+       g_debug("RadarSite: update_thread - %s", site->city->code);
        site->message = NULL;
 
-       gboolean offline = gis_viewer_get_offline(site->viewer);
-       gchar *nexrad_url = gis_prefs_get_string(site->prefs,
+       gboolean offline = grits_viewer_get_offline(site->viewer);
+       gchar *nexrad_url = grits_prefs_get_string(site->prefs,
                        "aweather/nexrad_url", NULL);
 
-       /* Remove old volume */
-       g_debug("GisPluginRadar: _update - remove - %s", site->city->code);
-       if (site->level2_ref) {
-               gis_viewer_remove(site->viewer, site->level2_ref);
-               site->level2_ref = NULL;
-       }
-
        /* Find nearest volume (temporally) */
-       g_debug("GisPluginRadar: _update - find nearest - %s", site->city->code);
+       g_debug("RadarSite: update_thread - find nearest - %s", site->city->code);
        gchar *dir_list = g_strconcat(nexrad_url, "/", site->city->code,
                        "/", "dir.list", NULL);
-       GList *files = gis_http_available(site->http,
-                       "^K\\w{3}_\\d{8}_\\d{4}$", site->city->code,
+       GList *files = grits_http_available(site->http,
+                       "^\\w{4}_\\d{8}_\\d{4}$", site->city->code,
                        "\\d+ (.*)", (offline ? NULL : dir_list));
        g_free(dir_list);
-       gchar *nearest = _find_nearest(site->time, files, 5, "%Y%m%d_%H%M");
+       gchar *nearest = _find_nearest(site->time, files, 5);
        g_list_foreach(files, (GFunc)g_free, NULL);
        g_list_free(files);
        if (!nearest) {
@@ -162,11 +168,11 @@ gpointer _site_update_thread(gpointer _site)
        }
 
        /* Fetch new volume */
-       g_debug("GisPluginRadar: _update - fetch");
+       g_debug("RadarSite: update_thread - fetch");
        gchar *local = g_strconcat(site->city->code, "/", nearest, NULL);
        gchar *uri   = g_strconcat(nexrad_url, "/", local,   NULL);
-       gchar *file = gis_http_fetch(site->http, uri, local,
-                       offline ? GIS_LOCAL : GIS_UPDATE,
+       gchar *file  = grits_http_fetch(site->http, uri, local,
+                       offline ? GRITS_LOCAL : GRITS_UPDATE,
                        _site_update_loading, site);
        g_free(nexrad_url);
        g_free(nearest);
@@ -178,35 +184,48 @@ gpointer _site_update_thread(gpointer _site)
        }
 
        /* Load and add new volume */
-       g_debug("GisPluginRadar: _update - load - %s", site->city->code);
+       g_debug("RadarSite: update_thread - load - %s", site->city->code);
        site->level2 = aweather_level2_new_from_file(
-                       site->viewer, colormaps, file, site->city->code);
+                       file, site->city->code, colormaps);
        g_free(file);
        if (!site->level2) {
                site->message = "Load failed";
                goto out;
        }
-       site->level2_ref = gis_viewer_add(site->viewer,
-                       GIS_OBJECT(site->level2), GIS_LEVEL_WORLD, TRUE);
+       grits_object_hide(GRITS_OBJECT(site->level2), site->hidden);
+       grits_viewer_add(site->viewer, GRITS_OBJECT(site->level2),
+                       GRITS_LEVEL_WORLD+3, TRUE);
 
 out:
-       g_idle_add(_site_update_end, site);
+       if (!site->idle_source)
+               site->idle_source = g_idle_add(_site_update_end, site);
        return NULL;
 }
 void _site_update(RadarSite *site)
 {
-       site->time = gis_viewer_get_time(site->viewer);
-       g_debug("GisPluginRadar: _on_time_changed %s - %d",
+       if (site->status == STATUS_LOADING)
+               return;
+       site->status = STATUS_LOADING;
+
+       site->time = grits_viewer_get_time(site->viewer);
+       g_debug("RadarSite: update %s - %d",
                        site->city->code, (gint)site->time);
 
        /* Add a progress bar */
        GtkWidget *progress = gtk_progress_bar_new();
        gtk_progress_bar_set_text(GTK_PROGRESS_BAR(progress), "Loading...");
-       _gtk_bin_set_child(GTK_BIN(site->config), progress);
+       aweather_bin_set_child(GTK_BIN(site->config), progress);
+
+       /* Remove old volume */
+       g_debug("RadarSite: update - remove - %s", site->city->code);
+       if (site->level2) {
+               grits_viewer_remove(site->viewer, GRITS_OBJECT(site->level2));
+               site->level2 = NULL;
+       }
 
        /* Fork loading right away so updating the
         * list of times doesn't take too long */
-       g_thread_create(_site_update_thread, site, FALSE, NULL);
+       g_thread_new("site-update-thread", _site_update_thread, site);
 }
 
 /* RadarSite methods */
@@ -215,21 +234,24 @@ void radar_site_unload(RadarSite *site)
        if (site->status != STATUS_LOADED)
                return; // Abort if it's still loading
 
-       g_debug("GisPluginRadar: radar_site_unload %s", site->city->code);
+       g_debug("RadarSite: unload %s", site->city->code);
 
        if (site->time_id)
                g_signal_handler_disconnect(site->viewer, site->time_id);
        if (site->refresh_id)
                g_signal_handler_disconnect(site->viewer, site->refresh_id);
+       if (site->idle_source)
+               g_source_remove(site->idle_source);
+       site->idle_source = 0;
 
        /* Remove tab */
        if (site->config)
                gtk_widget_destroy(site->config);
 
        /* Remove radar */
-       if (site->level2_ref) {
-               gis_viewer_remove(site->viewer, site->level2_ref);
-               site->level2_ref = NULL;
+       if (site->level2) {
+               grits_viewer_remove(site->viewer, GRITS_OBJECT(site->level2));
+               site->level2 = NULL;
        }
 
        site->status = STATUS_UNLOADED;
@@ -237,26 +259,16 @@ void radar_site_unload(RadarSite *site)
 
 void radar_site_load(RadarSite *site)
 {
-       g_debug("GisPluginRadar: radar_site_load %s", site->city->code);
-       site->status = STATUS_LOADING;
+       g_debug("RadarSite: load %s", site->city->code);
 
        /* Add tab page */
        site->config = gtk_alignment_new(0, 0, 1, 1);
-       GtkWidget *tab   = gtk_hbox_new(FALSE, 0);
-       GtkWidget *close = gtk_button_new();
-       GtkWidget *label = gtk_label_new(site->city->name);
-       gtk_container_add(GTK_CONTAINER(close),
-                       gtk_image_new_from_stock(GTK_STOCK_CLOSE,
-                               GTK_ICON_SIZE_MENU));
-       gtk_button_set_relief(GTK_BUTTON(close), GTK_RELIEF_NONE);
-       g_signal_connect_swapped(close, "clicked",
-                       G_CALLBACK(radar_site_unload), site);
-       gtk_box_pack_start(GTK_BOX(tab), label, TRUE, TRUE, 0);
-       gtk_box_pack_end(GTK_BOX(tab), close, FALSE, FALSE, 0);
-       gtk_notebook_append_page(GTK_NOTEBOOK(site->pconfig),
-                       site->config, tab);
+       g_object_set_data(G_OBJECT(site->config), "site", site);
+       gtk_notebook_append_page(GTK_NOTEBOOK(site->pconfig), site->config,
+                       gtk_label_new(site->city->name));
        gtk_widget_show_all(site->config);
-       gtk_widget_show_all(tab);
+       if (gtk_notebook_get_current_page(GTK_NOTEBOOK(site->pconfig)) == 0)
+               gtk_notebook_set_current_page(GTK_NOTEBOOK(site->pconfig), -1);
 
        /* Set up radar loading */
        site->time_id = g_signal_connect_swapped(site->viewer, "time-changed",
@@ -266,11 +278,11 @@ void radar_site_load(RadarSite *site)
        _site_update(site);
 }
 
-void _site_on_location_changed(GisViewer *viewer,
+void _site_on_location_changed(GritsViewer *viewer,
                gdouble lat, gdouble lon, gdouble elev,
                gpointer _site)
 {
-       static gdouble min_dist = EARTH_R / 20;
+       static gdouble min_dist = EARTH_R / 30;
        RadarSite *site = _site;
 
        /* Calculate distance, could cache xyz values */
@@ -287,28 +299,52 @@ void _site_on_location_changed(GisViewer *viewer,
                radar_site_unload(site);
 }
 
-gboolean _site_add_marker(gpointer _site)
+static gboolean on_marker_clicked(GritsObject *marker, GdkEvent *event, RadarSite *site)
 {
-       RadarSite *site = _site;
-       site->marker = gis_marker_new(site->city->name);
-       GIS_OBJECT(site->marker)->center = site->city->pos;
-       GIS_OBJECT(site->marker)->lod    = EARTH_R*site->city->lod;
-       site->marker_ref = gis_viewer_add(site->viewer,
-                       GIS_OBJECT(site->marker), GIS_LEVEL_OVERLAY, FALSE);
-       return FALSE;
+       GritsViewer *viewer = site->viewer;
+       GritsPoint center = marker->center;
+       grits_viewer_set_location(viewer, center.lat, center.lon, EARTH_R/35);
+       grits_viewer_set_rotation(viewer, 0, 0, 0);
+       /* Recursivly set notebook tabs */
+       GtkWidget *widget, *parent;
+       for (widget = site->config; widget; widget = parent) {
+               parent = gtk_widget_get_parent(widget);
+               if (GTK_IS_NOTEBOOK(parent)) {
+                       gint i = gtk_notebook_page_num(GTK_NOTEBOOK(parent), widget);
+                       gtk_notebook_set_current_page(GTK_NOTEBOOK(parent), i);
+               }
+       }
+       return TRUE;
 }
+
 RadarSite *radar_site_new(city_t *city, GtkWidget *pconfig,
-               GisViewer *viewer, GisPrefs *prefs, GisHttp *http)
+               GritsViewer *viewer, GritsPrefs *prefs, GritsHttp *http)
 {
        RadarSite *site = g_new0(RadarSite, 1);
        site->viewer  = g_object_ref(viewer);
        site->prefs   = g_object_ref(prefs);
-       site->http    = http;
+       //site->http    = http;
+       site->http    = grits_http_new(G_DIR_SEPARATOR_S
+                       "nexrad" G_DIR_SEPARATOR_S
+                       "level2" G_DIR_SEPARATOR_S);
        site->city    = city;
        site->pconfig = pconfig;
+       site->hidden  = TRUE;
+
+       /* Set initial location */
+       gdouble lat, lon, elev;
+       grits_viewer_get_location(viewer, &lat, &lon, &elev);
+       _site_on_location_changed(viewer, lat, lon, elev, site);
 
        /* Add marker */
-       g_idle_add(_site_add_marker, site);
+       site->marker = grits_marker_new(site->city->name);
+       GRITS_OBJECT(site->marker)->center = site->city->pos;
+       GRITS_OBJECT(site->marker)->lod    = EARTH_R*0.75*site->city->lod;
+       grits_viewer_add(site->viewer, GRITS_OBJECT(site->marker),
+                       GRITS_LEVEL_HUD, FALSE);
+       g_signal_connect(site->marker, "clicked",
+                       G_CALLBACK(on_marker_clicked), site);
+       grits_object_set_cursor(GRITS_OBJECT(site->marker), GDK_HAND2);
 
        /* Connect signals */
        site->location_id  = g_signal_connect(viewer, "location-changed",
@@ -319,9 +355,10 @@ RadarSite *radar_site_new(city_t *city, GtkWidget *pconfig,
 void radar_site_free(RadarSite *site)
 {
        radar_site_unload(site);
-       gis_viewer_remove(site->viewer, site->marker_ref);
+       grits_viewer_remove(site->viewer, GRITS_OBJECT(site->marker));
        if (site->location_id)
                g_signal_handler_disconnect(site->viewer, site->location_id);
+       grits_http_free(site->http);
        g_object_unref(site->viewer);
        g_object_unref(site->prefs);
        g_free(site);
@@ -331,19 +368,26 @@ void radar_site_free(RadarSite *site)
 /**************
  * RadarConus *
  **************/
+#define CONUS_NORTH       50.406626367301044
+#define CONUS_WEST       -127.620375523875420
+#define CONUS_WIDTH       3400.0
+#define CONUS_HEIGHT      1600.0
+#define CONUS_DEG_PER_PX  0.017971305190311
+
 struct _RadarConus {
-       GisViewer   *viewer;
-       GisHttp     *http;
+       GritsViewer *viewer;
+       GritsHttp   *http;
        GtkWidget   *config;
        time_t       time;
-       GisTile     *tile;
-       gpointer    *tile_ref;
-       GdkPixbuf   *pixbuf;
        const gchar *message;
-       gchar       *nearest;
+       GMutex       loading;
+
+       gchar       *path;
+       GritsTile   *tile[2];
 
        guint        time_id;     // "time-changed"     callback ID
        guint        refresh_id;  // "refresh"          callback ID
+       guint        idle_source; // _conus_update_end idle source
 };
 
 void _conus_update_loading(gchar *file, goffset cur,
@@ -359,151 +403,218 @@ void _conus_update_loading(gchar *file, goffset cur,
        g_free(msg);
 }
 
-gboolean _conus_update_end(gpointer _conus)
+/* Copy images to graphics memory */
+static void _conus_update_end_copy(GritsTile *tile, guchar *pixels)
 {
-       RadarConus *conus = _conus;
-
-       guchar    *pixels = gdk_pixbuf_get_pixels(conus->pixbuf);
-       gboolean   alpha  = gdk_pixbuf_get_has_alpha(conus->pixbuf);
-       gint       width  = gdk_pixbuf_get_width(conus->pixbuf);
-       gint       height = gdk_pixbuf_get_height(conus->pixbuf);
-
-       if (!conus->tile->data) {
-               conus->tile->data = g_new0(guint, 1);
-               glGenTextures(1, conus->tile->data);
-       }
+       if (!tile->tex)
+               glGenTextures(1, &tile->tex);
 
-       guint *tex = conus->tile->data;
-       glBindTexture(GL_TEXTURE_2D, *tex);
+       gchar *clear = g_malloc0(2048*2048*4);
+       glBindTexture(GL_TEXTURE_2D, tile->tex);
 
        glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
        glPixelStorei(GL_PACK_ALIGNMENT, 1);
-       glTexImage2D(GL_TEXTURE_2D, 0, 4, width, height, 0,
-                       (alpha ? GL_RGBA : GL_RGB), GL_UNSIGNED_BYTE, pixels);
+       glTexImage2D(GL_TEXTURE_2D, 0, 4, 2048, 2048, 0,
+                       GL_RGBA, GL_UNSIGNED_BYTE, clear);
+       glTexSubImage2D(GL_TEXTURE_2D, 0, 1,1, CONUS_WIDTH/2,CONUS_HEIGHT,
+                       GL_RGBA, GL_UNSIGNED_BYTE, pixels);
+       tile->coords.n = 1.0/(CONUS_WIDTH/2);
+       tile->coords.w = 1.0/ CONUS_HEIGHT;
+       tile->coords.s = tile->coords.n +  CONUS_HEIGHT   / 2048.0;
+       tile->coords.e = tile->coords.w + (CONUS_WIDTH/2) / 2048.0;
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-       glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
-       glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+       glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+       glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
        glFlush();
+       g_free(clear);
+}
 
-       /* finish */
-       _gtk_bin_set_child(GTK_BIN(conus->config),
-                       gtk_label_new(conus->nearest));
-       gtk_widget_queue_draw(GTK_WIDGET(conus->viewer));
+/* Split the pixbuf into east and west halves (with 2K sides)
+ * Also map the pixbuf's alpha values */
+static void _conus_update_end_split(guchar *pixels, guchar *west, guchar *east,
+               gint width, gint height, gint pxsize)
+{
+       g_debug("Conus: update_end_split");
+       guchar *out[] = {west,east};
+       const guchar alphamap[][4] = {
+               {0x04, 0xe9, 0xe7, 0x30},
+               {0x01, 0x9f, 0xf4, 0x60},
+               {0x03, 0x00, 0xf4, 0x90},
+       };
+       for (int y = 0; y < height; y++)
+       for (int x = 0; x < width;  x++) {
+               gint subx = x % (width/2);
+               gint idx  = x / (width/2);
+               guchar *src = &pixels[(y*width+x)*pxsize];
+               guchar *dst = &out[idx][(y*(width/2)+subx)*4];
+               if (src[0] > 0xe0 &&
+                   src[1] > 0xe0 &&
+                   src[2] > 0xe0) {
+                       dst[3] = 0x00;
+               } else {
+                       dst[0] = src[0];
+                       dst[1] = src[1];
+                       dst[2] = src[2];
+                       dst[3] = 0xff * 0.75;
+                       for (int j = 0; j < G_N_ELEMENTS(alphamap); j++)
+                               if (src[0] == alphamap[j][0] &&
+                                   src[1] == alphamap[j][1] &&
+                                   src[2] == alphamap[j][2])
+                                       dst[3] = alphamap[j][3];
+               }
+       }
+}
 
-       /* free data */
-       g_object_unref(conus->pixbuf);
-       g_free(conus->nearest);
+gboolean _conus_update_end(gpointer _conus)
+{
+       RadarConus *conus = _conus;
+       g_debug("Conus: update_end");
 
+       /* Check error status */
+       if (conus->message) {
+               g_warning("Conus: update_end - %s", conus->message);
+               aweather_bin_set_child(GTK_BIN(conus->config), gtk_label_new(conus->message));
+               goto out;
+       }
+
+       /* Load and pixbuf */
+       GError *error = NULL;
+       GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(conus->path, &error);
+       if (!pixbuf || error) {
+               g_warning("Conus: update_end - error loading pixbuf: %s", conus->path);
+               aweather_bin_set_child(GTK_BIN(conus->config), gtk_label_new("Error loading pixbuf"));
+               g_remove(conus->path);
+               goto out;
+       }
+
+       /* Split pixels into east/west parts */
+       guchar *pixels = gdk_pixbuf_get_pixels(pixbuf);
+       gint    width  = gdk_pixbuf_get_width(pixbuf);
+       gint    height = gdk_pixbuf_get_height(pixbuf);
+       gint    pxsize = gdk_pixbuf_get_has_alpha(pixbuf) ? 4 : 3;
+       guchar *pixels_west = g_malloc(4*(width/2)*height);
+       guchar *pixels_east = g_malloc(4*(width/2)*height);
+       _conus_update_end_split(pixels, pixels_west, pixels_east,
+                       width, height, pxsize);
+       g_object_unref(pixbuf);
+
+       /* Copy pixels to graphics memory */
+       _conus_update_end_copy(conus->tile[0], pixels_west);
+       _conus_update_end_copy(conus->tile[1], pixels_east);
+       g_free(pixels_west);
+       g_free(pixels_east);
+
+       /* Update GUI */
+       gchar *label = g_path_get_basename(conus->path);
+       aweather_bin_set_child(GTK_BIN(conus->config), gtk_label_new(label));
+       grits_viewer_queue_draw(conus->viewer);
+       g_free(label);
+
+out:
+       conus->idle_source = 0;
+       g_free(conus->path);
+       g_mutex_unlock(&conus->loading);
        return FALSE;
 }
 
 gpointer _conus_update_thread(gpointer _conus)
 {
        RadarConus *conus = _conus;
+       conus->message = NULL;
 
        /* Find nearest */
-       gboolean offline = gis_viewer_get_offline(conus->viewer);
+       g_debug("Conus: update_thread - nearest");
+       gboolean offline = grits_viewer_get_offline(conus->viewer);
        gchar *conus_url = "http://radar.weather.gov/Conus/RadarImg/";
-       GList *files = gis_http_available(conus->http,
-                       "^Conus_[^\"]*_N0Ronly.gif$", "",
-                       NULL, (offline ? NULL : conus_url));
-       conus->nearest = _find_nearest(conus->time, files, 6, "%Y%m%d_%H%M");
-       g_list_foreach(files, (GFunc)g_free, NULL);
-       g_list_free(files);
-       if (!conus->nearest) {
-               conus->message = "No suitable files";
-               goto out;
+       gchar *nearest;
+       if (time(NULL) - conus->time < 60*60*5 && !offline) {
+               /* radar.weather.gov is full of lies.
+                * the index pages get cached and out of date */
+               /* gmtime is not thread safe, but it's not used very often so
+                * hopefully it'll be alright for now... :-( */
+               struct tm *tm = gmtime(&conus->time);
+               time_t onthe8 = conus->time - 60*((tm->tm_min+1)%10+1);
+               tm = gmtime(&onthe8);
+               nearest = g_strdup_printf("Conus_%04d%02d%02d_%02d%02d_N0Ronly.gif",
+                               tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
+                               tm->tm_hour, tm->tm_min);
+       } else {
+               GList *files = grits_http_available(conus->http,
+                               "^Conus_[^\"]*_N0Ronly.gif$", "", NULL, NULL);
+               nearest = _find_nearest(conus->time, files, 6);
+               g_list_foreach(files, (GFunc)g_free, NULL);
+               g_list_free(files);
+               if (!nearest) {
+                       conus->message = "No suitable files";
+                       goto out;
+               }
        }
 
        /* Fetch the image */
-       gchar *uri     = g_strconcat(conus_url, conus->nearest, NULL);
-       gchar *path    = gis_http_fetch(conus->http, uri, conus->nearest, GIS_ONCE,
+       g_debug("Conus: update_thread - fetch");
+       gchar *uri  = g_strconcat(conus_url, nearest, NULL);
+       conus->path = grits_http_fetch(conus->http, uri, nearest,
+                       offline ? GRITS_LOCAL : GRITS_ONCE,
                        _conus_update_loading, conus);
+       g_free(nearest);
        g_free(uri);
-       if (!path) {
+       if (!conus->path) {
                conus->message = "Fetch failed";
                goto out;
        }
 
-       /* Load the image to a pixbuf */
-       GError *error = NULL;
-       conus->pixbuf = gdk_pixbuf_new_from_file(path, &error);
-       g_free(path);
-       if (!gdk_pixbuf_get_has_alpha(conus->pixbuf)) {
-               GdkPixbuf *tmp = gdk_pixbuf_add_alpha(conus->pixbuf, TRUE, 0xff, 0xff, 0xff);
-               g_object_unref(conus->pixbuf);
-               conus->pixbuf = tmp;
-       }
-
-       /* Map the pixbuf's alpha values */
-       const guchar colormap[][2][4] = {
-               {{0x04, 0xe9, 0xe7}, {0x04, 0xe9, 0xe7, 0x30}},
-               {{0x01, 0x9f, 0xf4}, {0x01, 0x9f, 0xf4, 0x60}},
-               {{0x03, 0x00, 0xf4}, {0x03, 0x00, 0xf4, 0x90}},
-       };
-       guchar *pixels = gdk_pixbuf_get_pixels(conus->pixbuf);
-       gint    height = gdk_pixbuf_get_height(conus->pixbuf);
-       gint    width  = gdk_pixbuf_get_width(conus->pixbuf);
-       for (int i = 0; i < width*height; i++) {
-               for (int j = 0; j < G_N_ELEMENTS(colormap); j++) {
-                       if (pixels[i*4+0] > 0xe0 &&
-                           pixels[i*4+1] > 0xe0 &&
-                           pixels[i*4+2] > 0xe0) {
-                               pixels[i*4+3] = 0x00;
-                               break;
-                       }
-                       if (pixels[i*4+0] == colormap[j][0][0] &&
-                           pixels[i*4+1] == colormap[j][0][1] &&
-                           pixels[i*4+2] == colormap[j][0][2]) {
-                               pixels[i*4+0] = colormap[j][1][0];
-                               pixels[i*4+1] = colormap[j][1][1];
-                               pixels[i*4+2] = colormap[j][1][2];
-                               pixels[i*4+3] = colormap[j][1][3];
-                               break;
-                       }
-               }
-       }
-
 out:
-       g_idle_add(_conus_update_end, conus);
+       g_debug("Conus: update_thread - done");
+       if (!conus->idle_source)
+               conus->idle_source = g_idle_add(_conus_update_end, conus);
        return NULL;
 }
 
 void _conus_update(RadarConus *conus)
 {
-       conus->time = gis_viewer_get_time(conus->viewer);
-       g_debug("GisPluginRadar: _conus_update - %d",
+       if (!g_mutex_trylock(&conus->loading))
+               return;
+       conus->time = grits_viewer_get_time(conus->viewer);
+       g_debug("Conus: update - %d",
                        (gint)conus->time);
 
        /* Add a progress bar */
        GtkWidget *progress = gtk_progress_bar_new();
        gtk_progress_bar_set_text(GTK_PROGRESS_BAR(progress), "Loading...");
-       _gtk_bin_set_child(GTK_BIN(conus->config), progress);
+       aweather_bin_set_child(GTK_BIN(conus->config), progress);
 
-       g_thread_create(_conus_update_thread, conus, FALSE, NULL);
+       g_thread_new("conus-update-thread", _conus_update_thread, conus);
 }
 
 RadarConus *radar_conus_new(GtkWidget *pconfig,
-               GisViewer *viewer, GisHttp *http)
+               GritsViewer *viewer, GritsHttp *http)
 {
        RadarConus *conus = g_new0(RadarConus, 1);
        conus->viewer  = g_object_ref(viewer);
        conus->http    = http;
        conus->config  = gtk_alignment_new(0, 0, 1, 1);
-       conus->tile    = gis_tile_new(NULL,
-                       50.406626367301044,   50.406626367301044-0.017971305190311*1600,
-                       -127.620375523875420+0.017971305190311*3400, -127.620375523875420);
-       conus->tile->zindex = 1;
-       conus->tile_ref = gis_viewer_add(viewer,
-                       GIS_OBJECT(conus->tile), GIS_LEVEL_WORLD, TRUE);
+       g_mutex_init(&conus->loading);
+
+       gdouble south =  CONUS_NORTH - CONUS_DEG_PER_PX*CONUS_HEIGHT;
+       gdouble east  =  CONUS_WEST  + CONUS_DEG_PER_PX*CONUS_WIDTH;
+       gdouble mid   =  CONUS_WEST  + CONUS_DEG_PER_PX*CONUS_WIDTH/2;
+       conus->tile[0] = grits_tile_new(NULL, CONUS_NORTH, south, mid, CONUS_WEST);
+       conus->tile[1] = grits_tile_new(NULL, CONUS_NORTH, south, east, mid);
+       conus->tile[0]->zindex = 2;
+       conus->tile[1]->zindex = 1;
+       grits_viewer_add(viewer, GRITS_OBJECT(conus->tile[0]), GRITS_LEVEL_WORLD+2, FALSE);
+       grits_viewer_add(viewer, GRITS_OBJECT(conus->tile[1]), GRITS_LEVEL_WORLD+2, FALSE);
 
        conus->time_id = g_signal_connect_swapped(viewer, "time-changed",
                        G_CALLBACK(_conus_update), conus);
        conus->refresh_id = g_signal_connect_swapped(viewer, "refresh",
                        G_CALLBACK(_conus_update), conus);
 
-       gtk_notebook_append_page(GTK_NOTEBOOK(pconfig), conus->config, gtk_label_new("Conus"));
+       g_object_set_data(G_OBJECT(conus->config), "conus", conus);
+       gtk_notebook_append_page(GTK_NOTEBOOK(pconfig), conus->config,
+                       gtk_label_new("Conus"));
+
        _conus_update(conus);
        return conus;
 }
@@ -512,30 +623,27 @@ void radar_conus_free(RadarConus *conus)
 {
        g_signal_handler_disconnect(conus->viewer, conus->time_id);
        g_signal_handler_disconnect(conus->viewer, conus->refresh_id);
+       if (conus->idle_source)
+               g_source_remove(conus->idle_source);
 
-       if (conus->tile->data) {
-               glDeleteTextures(1, conus->tile->data);
-               g_free(conus->tile->data);
+       for (int i = 0; i < 2; i++) {
+               GritsTile *tile = conus->tile[i];
+               grits_viewer_remove(conus->viewer, GRITS_OBJECT(tile));
+               g_object_unref(tile);
        }
-       gis_viewer_remove(conus->viewer, conus->tile_ref);
 
        g_object_unref(conus->viewer);
        g_free(conus);
 }
 
 
-/******************
- * GisPluginRadar *
- ******************/
-static void _draw_hud(GisCallback *callback, gpointer _self)
+/********************
+ * GritsPluginRadar *
+ ********************/
+static void _draw_hud(GritsCallback *callback, GritsOpenGL *opengl, gpointer _self)
 {
-       /* TODO */
-       GisPluginRadar *self = GIS_PLUGIN_RADAR(_self);
-       if (!self->colormap)
-               return;
-
-       g_debug("GisPluginRadar: _draw_hud");
-       /* Print the color table */
+       g_debug("GritsPluginRadar: _draw_hud");
+       /* Setup OpenGL */
        glMatrixMode(GL_MODELVIEW ); glLoadIdentity();
        glMatrixMode(GL_PROJECTION); glLoadIdentity();
        glDisable(GL_TEXTURE_2D);
@@ -543,30 +651,101 @@ static void _draw_hud(GisCallback *callback, gpointer _self)
        glDisable(GL_CULL_FACE);
        glDisable(GL_LIGHTING);
        glEnable(GL_COLOR_MATERIAL);
-       glBegin(GL_QUADS);
-       int i;
-       for (i = 0; i < 256; i++) {
-               glColor4ubv(self->colormap->data[i]);
-               glVertex3f(-1.0, (float)((i  ) - 256/2)/(256/2), 0.0); // bot left
-               glVertex3f(-1.0, (float)((i+1) - 256/2)/(256/2), 0.0); // top left
-               glVertex3f(-0.9, (float)((i+1) - 256/2)/(256/2), 0.0); // top right
-               glVertex3f(-0.9, (float)((i  ) - 256/2)/(256/2), 0.0); // bot right
+
+       GHashTableIter iter;
+       gpointer name, _site;
+       GritsPluginRadar *self = GRITS_PLUGIN_RADAR(_self);
+       g_hash_table_iter_init(&iter, self->sites);
+       while (g_hash_table_iter_next(&iter, &name, &_site)) {
+               /* Pick correct colormaps */
+               RadarSite *site = _site;
+               if (site->hidden || !site->level2)
+                       continue;
+               AWeatherColormap *colormap = site->level2->sweep_colors;
+
+               /* Print the color table */
+               glBegin(GL_QUADS);
+               int len = colormap->len;
+               for (int i = 0; i < len; i++) {
+                       glColor4ubv(colormap->data[i]);
+                       glVertex3f(-1.0, (float)((i  ) - len/2)/(len/2), 0.0); // bot left
+                       glVertex3f(-1.0, (float)((i+1) - len/2)/(len/2), 0.0); // top left
+                       glVertex3f(-0.9, (float)((i+1) - len/2)/(len/2), 0.0); // top right
+                       glVertex3f(-0.9, (float)((i  ) - len/2)/(len/2), 0.0); // bot right
+               }
+               glEnd();
        }
-       glEnd();
+}
+
+static void _load_colormap(gchar *filename, AWeatherColormap *cm)
+{
+       g_debug("GritsPluginRadar: _load_colormap - %s", filename);
+       FILE *file = fopen(filename, "r");
+       if (!file)
+               g_error("GritsPluginRadar: open failed");
+       guint8 color[4];
+       GArray *array = g_array_sized_new(FALSE, TRUE, sizeof(color), 256);
+       if (!fgets(cm->name, sizeof(cm->name), file)) goto out;
+       if (!fscanf(file, "%f\n", &cm->scale))        goto out;
+       if (!fscanf(file, "%f\n", &cm->shift))        goto out;
+       int r, g, b, a;
+       while (fscanf(file, "%d %d %d %d\n", &r, &g, &b, &a) == 4) {
+               color[0] = r;
+               color[1] = g;
+               color[2] = b;
+               color[3] = a;
+               g_array_append_val(array, color);
+       }
+       cm->len  = (gint )array->len;
+       cm->data = (void*)array->data;
+out:
+       g_array_free(array, FALSE);
+       fclose(file);
+}
+
+static void _update_hidden(GtkNotebook *notebook,
+               gpointer _, guint page_num, gpointer viewer)
+{
+       g_debug("GritsPluginRadar: _update_hidden - 0..%d = %d",
+                       gtk_notebook_get_n_pages(notebook), page_num);
+
+       for (gint i = 0; i < gtk_notebook_get_n_pages(notebook); i++) {
+               gboolean is_hidden = (i != page_num);
+               GtkWidget  *config = gtk_notebook_get_nth_page(notebook, i);
+               RadarConus *conus  = g_object_get_data(G_OBJECT(config), "conus");
+               RadarSite  *site   = g_object_get_data(G_OBJECT(config), "site");
+
+               /* Conus */
+               if (conus) {
+                       grits_object_hide(GRITS_OBJECT(conus->tile[0]), is_hidden);
+                       grits_object_hide(GRITS_OBJECT(conus->tile[1]), is_hidden);
+               } else if (site) {
+                       site->hidden = is_hidden;
+                       if (site->level2)
+                               grits_object_hide(GRITS_OBJECT(site->level2), is_hidden);
+               } else {
+                       g_warning("GritsPluginRadar: _update_hidden - no site or counus found");
+               }
+       }
+       grits_viewer_queue_draw(viewer);
 }
 
 /* Methods */
-GisPluginRadar *gis_plugin_radar_new(GisViewer *viewer, GisPrefs *prefs)
+GritsPluginRadar *grits_plugin_radar_new(GritsViewer *viewer, GritsPrefs *prefs)
 {
        /* TODO: move to constructor if possible */
-       g_debug("GisPluginRadar: new");
-       GisPluginRadar *self = g_object_new(GIS_TYPE_PLUGIN_RADAR, NULL);
-       self->viewer = viewer;
-       self->prefs  = prefs;
+       g_debug("GritsPluginRadar: new");
+       GritsPluginRadar *self = g_object_new(GRITS_TYPE_PLUGIN_RADAR, NULL);
+       self->viewer = g_object_ref(viewer);
+       self->prefs  = g_object_ref(prefs);
+
+       /* Setup page switching */
+       self->tab_id = g_signal_connect(self->config, "switch-page",
+                       G_CALLBACK(_update_hidden), viewer);
 
        /* Load HUD */
-       GisCallback *hud_cb = gis_callback_new(_draw_hud, self);
-       self->hud_ref = gis_viewer_add(viewer, GIS_OBJECT(hud_cb), GIS_LEVEL_HUD, FALSE);
+       self->hud = grits_callback_new(_draw_hud, self);
+       grits_viewer_add(viewer, GRITS_OBJECT(self->hud), GRITS_LEVEL_HUD, FALSE);
 
        /* Load Conus */
        self->conus = radar_conus_new(self->config, self->viewer, self->conus_http);
@@ -583,59 +762,82 @@ GisPluginRadar *gis_plugin_radar_new(GisViewer *viewer, GisPrefs *prefs)
        return self;
 }
 
-static GtkWidget *gis_plugin_radar_get_config(GisPlugin *_self)
+static GtkWidget *grits_plugin_radar_get_config(GritsPlugin *_self)
 {
-       GisPluginRadar *self = GIS_PLUGIN_RADAR(_self);
+       GritsPluginRadar *self = GRITS_PLUGIN_RADAR(_self);
        return self->config;
 }
 
 /* GObject code */
-static void gis_plugin_radar_plugin_init(GisPluginInterface *iface);
-G_DEFINE_TYPE_WITH_CODE(GisPluginRadar, gis_plugin_radar, G_TYPE_OBJECT,
-               G_IMPLEMENT_INTERFACE(GIS_TYPE_PLUGIN,
-                       gis_plugin_radar_plugin_init));
-static void gis_plugin_radar_plugin_init(GisPluginInterface *iface)
+static void grits_plugin_radar_plugin_init(GritsPluginInterface *iface);
+G_DEFINE_TYPE_WITH_CODE(GritsPluginRadar, grits_plugin_radar, G_TYPE_OBJECT,
+               G_IMPLEMENT_INTERFACE(GRITS_TYPE_PLUGIN,
+                       grits_plugin_radar_plugin_init));
+static void grits_plugin_radar_plugin_init(GritsPluginInterface *iface)
 {
-       g_debug("GisPluginRadar: plugin_init");
+       g_debug("GritsPluginRadar: plugin_init");
        /* Add methods to the interface */
-       iface->get_config = gis_plugin_radar_get_config;
+       iface->get_config = grits_plugin_radar_get_config;
 }
-static void gis_plugin_radar_init(GisPluginRadar *self)
+static void grits_plugin_radar_init(GritsPluginRadar *self)
 {
-       g_debug("GisPluginRadar: class_init");
+       g_debug("GritsPluginRadar: class_init");
        /* Set defaults */
-       self->sites_http = gis_http_new(G_DIR_SEPARATOR_S "nexrad" G_DIR_SEPARATOR_S "level2" G_DIR_SEPARATOR_S);
-       self->conus_http = gis_http_new(G_DIR_SEPARATOR_S "nexrad" G_DIR_SEPARATOR_S "conus" G_DIR_SEPARATOR_S);
+       self->sites_http = grits_http_new(G_DIR_SEPARATOR_S
+                       "nexrad" G_DIR_SEPARATOR_S
+                       "level2" G_DIR_SEPARATOR_S);
+       self->conus_http = grits_http_new(G_DIR_SEPARATOR_S
+                       "nexrad" G_DIR_SEPARATOR_S
+                       "conus"  G_DIR_SEPARATOR_S);
        self->sites      = g_hash_table_new_full(g_str_hash, g_str_equal,
                                NULL, (GDestroyNotify)radar_site_free);
-       self->config     = gtk_notebook_new();
+       self->config     = g_object_ref(gtk_notebook_new());
+
+       /* Load colormaps */
+       for (int i = 0; colormaps[i].file; i++) {
+               gchar *file = g_build_filename(PKGDATADIR,
+                               "colors", colormaps[i].file, NULL);
+               _load_colormap(file, &colormaps[i]);
+               g_free(file);
+       }
+
+       /* Need to position on the top because of Win32 bug */
        gtk_notebook_set_tab_pos(GTK_NOTEBOOK(self->config), GTK_POS_LEFT);
 }
-static void gis_plugin_radar_dispose(GObject *gobject)
+static void grits_plugin_radar_dispose(GObject *gobject)
 {
-       g_debug("GisPluginRadar: dispose");
-       GisPluginRadar *self = GIS_PLUGIN_RADAR(gobject);
-       gis_viewer_remove(self->viewer, self->hud_ref);
-       radar_conus_free(self->conus);
+       g_debug("GritsPluginRadar: dispose");
+       GritsPluginRadar *self = GRITS_PLUGIN_RADAR(gobject);
+       if (self->viewer) {
+               GritsViewer *viewer = self->viewer;
+               self->viewer = NULL;
+               g_signal_handler_disconnect(self->config, self->tab_id);
+               grits_viewer_remove(viewer, GRITS_OBJECT(self->hud));
+               radar_conus_free(self->conus);
+               g_hash_table_destroy(self->sites);
+               g_object_unref(self->config);
+               g_object_unref(self->hud);
+               g_object_unref(self->prefs);
+               g_object_unref(viewer);
+       }
        /* Drop references */
-       G_OBJECT_CLASS(gis_plugin_radar_parent_class)->dispose(gobject);
+       G_OBJECT_CLASS(grits_plugin_radar_parent_class)->dispose(gobject);
 }
-static void gis_plugin_radar_finalize(GObject *gobject)
+static void grits_plugin_radar_finalize(GObject *gobject)
 {
-       g_debug("GisPluginRadar: finalize");
-       GisPluginRadar *self = GIS_PLUGIN_RADAR(gobject);
+       g_debug("GritsPluginRadar: finalize");
+       GritsPluginRadar *self = GRITS_PLUGIN_RADAR(gobject);
        /* Free data */
-       gis_http_free(self->conus_http);
-       gis_http_free(self->sites_http);
-       g_hash_table_destroy(self->sites);
+       grits_http_free(self->conus_http);
+       grits_http_free(self->sites_http);
        gtk_widget_destroy(self->config);
-       G_OBJECT_CLASS(gis_plugin_radar_parent_class)->finalize(gobject);
+       G_OBJECT_CLASS(grits_plugin_radar_parent_class)->finalize(gobject);
 
 }
-static void gis_plugin_radar_class_init(GisPluginRadarClass *klass)
+static void grits_plugin_radar_class_init(GritsPluginRadarClass *klass)
 {
-       g_debug("GisPluginRadar: class_init");
+       g_debug("GritsPluginRadar: class_init");
        GObjectClass *gobject_class = (GObjectClass*)klass;
-       gobject_class->dispose  = gis_plugin_radar_dispose;
-       gobject_class->finalize = gis_plugin_radar_finalize;
+       gobject_class->dispose  = grits_plugin_radar_dispose;
+       gobject_class->finalize = grits_plugin_radar_finalize;
 }