#include <gtk/gtkgl.h>
#include <GL/gl.h>
#include <math.h>
-
-#include "rsl.h"
+#include <rsl.h>
#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];
-static colormap_t *colormap;
-static guint sweep_tex = 0;
-static Radar *radar = NULL;
-
-static AWeatherGui *gui = NULL;
+/****************
+ * GObject code *
+ ****************/
+static void aweather_radar_plugin_init(AWeatherPluginInterface *iface);
+static void _aweather_radar_expose(AWeatherPlugin *_radar);
+G_DEFINE_TYPE_WITH_CODE(AWeatherRadar, aweather_radar, G_TYPE_OBJECT,
+ G_IMPLEMENT_INTERFACE(AWEATHER_TYPE_PLUGIN,
+ aweather_radar_plugin_init));
+static void aweather_radar_class_init(AWeatherRadarClass *klass)
+{
+ GObjectClass *object_class = (GObjectClass*)klass;
+}
+static void aweather_radar_plugin_init(AWeatherPluginInterface *iface)
+{
+ /* Add methods to the interface */
+ iface->expose = _aweather_radar_expose;
+}
+static void aweather_radar_init(AWeatherRadar *radar)
+{
+ /* Set defaults */
+ radar->gui = NULL;
+}
/**************************
* Data loading functions *
**************************/
/* Convert a sweep to an 2d array of data points */
-static void bscan_sweep(Sweep *sweep, guint8 **data, int *width, int *height)
+static void bscan_sweep(AWeatherRadar *self, Sweep *sweep, colormap_t *colormap,
+ guint8 **data, int *width, int *height)
{
/* Calculate max number of bins */
int i, max_bins = 0;
*data = buf;
}
-static void load_color_table(char *table)
-{
- for (int i = 0; colormaps[i].name; i++)
- if (g_str_equal(colormaps[i].name, table))
- colormap = &colormaps[i];
-}
-
/* Load a sweep as the active texture */
-static void load_sweep(Sweep *sweep)
+static void load_sweep(AWeatherRadar *self, Sweep *sweep)
{
- aweather_gui_gl_begin(gui);
- cur_sweep = sweep;
+ aweather_gui_gl_begin(self->gui);
+ self->cur_sweep = sweep;
int height, width;
guint8 *data;
- bscan_sweep(sweep, &data, &width, &height);
- glDeleteTextures(1, &sweep_tex);
- glGenTextures(1, &sweep_tex);
- glBindTexture(GL_TEXTURE_2D, sweep_tex);
+ bscan_sweep(self, sweep, self->cur_colormap, &data, &width, &height);
+ glDeleteTextures(1, &self->cur_sweep_tex);
+ glGenTextures(1, &self->cur_sweep_tex);
+ glBindTexture(GL_TEXTURE_2D, self->cur_sweep_tex);
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, data);
g_free(data);
- aweather_gui_gl_redraw(gui);
- aweather_gui_gl_end(gui);
+ aweather_gui_gl_redraw(self->gui);
+ aweather_gui_gl_end(self->gui);
+}
+
+static void load_colormap(AWeatherRadar *self, gchar *table)
+{
+ /* Set colormap so we can draw it on expose */
+ for (int i = 0; colormaps[i].name; i++)
+ if (g_str_equal(colormaps[i].name, table))
+ self->cur_colormap = &colormaps[i];
}
/* Add selectors to the config area for the sweeps */
-static void load_radar_gui(Radar *radar)
+static void on_sweep_clicked(GtkRadioButton *button, gpointer _self);
+static void load_radar_gui(AWeatherRadar *self, Radar *radar)
{
/* Clear existing items */
- GtkWidget *child = gtk_bin_get_child(GTK_BIN(config_body));
+ GtkWidget *child = gtk_bin_get_child(GTK_BIN(self->config_body));
if (child)
gtk_widget_destroy(child);
Sweep *sweep = vol->sweep[si];
if (sweep == NULL || sweep->h.elev == 0) continue;
if (sweep->h.elev != elev) {
- g_message("adding elev");
cols++;
elev = sweep->h.elev;
//gtk_widget_set_size_request(button, -1, 22);
g_object_set(button, "draw-indicator", FALSE, NULL);
gtk_box_pack_end(GTK_BOX(elev_box), button, TRUE, TRUE, 0);
- g_signal_connect_swapped(button, "clicked",
- G_CALLBACK(load_color_table), vol->h.type_str);
- g_signal_connect_swapped(button, "clicked",
- G_CALLBACK(load_sweep), sweep);
+
+ g_object_set_data(G_OBJECT(button), "type", vol->h.type_str);
+ g_object_set_data(G_OBJECT(button), "sweep", sweep);
+ g_signal_connect(button, "clicked", G_CALLBACK(on_sweep_clicked), self);
}
}
- gtk_container_add(GTK_CONTAINER(config_body), table);
+ gtk_container_add(GTK_CONTAINER(self->config_body), table);
gtk_widget_show_all(table);
}
-/* Load a radar from a file */
-static void load_radar_rsl(GPid pid, gint status, gpointer _path)
+/* Load a radar from a decompressed file */
+static void load_radar(AWeatherRadar *self, gchar *radar_file)
{
- gchar *path = _path;
- if (status != 0) {
- g_warning("wsr88ddec exited with status %d", status);
- return;
- }
- char *dir = g_path_get_dirname(path);
+ char *dir = g_path_get_dirname(radar_file);
char *site = g_path_get_basename(dir);
g_free(dir);
RSL_read_these_sweeps("all", NULL);
- if (radar) {
- g_message("Freeing radar");
- RSL_free_radar(radar);
+ if (self->cur_radar) {
+ g_debug("AWeatherRadar: load_radar - Freeing old radar");
+ RSL_free_radar(self->cur_radar);
}
- g_message("Allocating radar");
- radar = RSL_wsr88d_to_radar(path, site);
+ g_debug("AWeatherRadar: load_radar - Loading new radar");
+ Radar *radar = self->cur_radar = RSL_wsr88d_to_radar(radar_file, site);
if (radar == NULL) {
- g_warning("fail to load radar: path=%s, site=%s", path, site);
- g_free(path);
+ g_warning("fail to load radar: path=%s, site=%s", radar_file, site);
g_free(site);
return;
}
- g_free(path);
g_free(site);
/* Load the first sweep by default */
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_color_table(radar->v[vi]->h.type_str);
- load_sweep(radar->v[vi]->sweep[si]);
+ load_colormap(self, radar->v[vi]->h.type_str);
+ load_sweep(self, 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, gboolean updated, gpointer user_data)
-{
- char *raw = g_strconcat(path, ".raw", NULL);
- if (!updated) {
- load_radar_rsl(0, 0, raw);
- } else {
- g_message("File updated, decompressing..");
- 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_SEARCH_PATH|
- 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_error_free(error);
- }
- g_child_watch_add(pid, load_radar_rsl, raw);
- }
+ load_radar_gui(self, radar);
}
-static void update_times(char *site, char **last_time)
+static void update_times(AWeatherRadar *self, char *site, char **last_time)
{
char *list_uri = g_strdup_printf(
"http://mesonet.agron.iastate.edu/data/nexrd2/raw/K%s/dir.list",
return;
}
gchar **lines = g_strsplit(data, "\n", -1);
- GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time"));
+ GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(self->gui, "time"));
GtkListStore *lstore = GTK_LIST_STORE(gtk_tree_view_get_model(tview));
gtk_list_store_clear(lstore);
GtkTreeIter iter;
g_strfreev(lines);
}
+/*****************
+ * ASync helpers *
+ *****************/
+typedef struct {
+ AWeatherRadar *self;
+ gchar *radar_file;
+} decompressed_t;
+
+static void decompressed_cb(GPid pid, gint status, gpointer _self)
+{
+ decompressed_t *udata = _self;
+ if (status != 0) {
+ g_warning("wsr88ddec exited with status %d", status);
+ return;
+ }
+ // TODO: pass cur_file as params?
+ load_radar(udata->self, udata->radar_file);
+ g_free(udata->radar_file);
+ g_free(udata);
+}
+
+static void cached_cb(char *path, gboolean updated, gpointer _self)
+{
+ AWeatherRadar *self = AWEATHER_RADAR(_self);
+ char *decompressed = g_strconcat(path, ".raw", NULL);
+ if (!updated) {
+ load_radar(self, decompressed);
+ return;
+ }
+
+ decompressed_t *udata = g_malloc(sizeof(decompressed_t));
+ udata->self = self;
+ udata->radar_file = decompressed;
+ g_debug("AWeatherRadar: cached_cb - File updated, decompressing..");
+ char *argv[] = {"wsr88ddec", path, decompressed, NULL};
+ GPid pid;
+ GError *error = NULL;
+ g_spawn_async(
+ NULL, // const gchar *working_directory,
+ argv, // gchar **argv,
+ NULL, // gchar **envp,
+ G_SPAWN_SEARCH_PATH|
+ 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_error_free(error);
+ }
+ g_child_watch_add(pid, decompressed_cb, udata);
+}
+
/*************
* Callbacks *
*************/
-static gboolean on_expose(GtkWidget *da, GdkEventExpose *event, gpointer user_data)
+static void on_sweep_clicked(GtkRadioButton *button, gpointer _self)
{
- g_message("radar:expose");
- if (cur_sweep == NULL)
- return FALSE;
- Sweep *sweep = cur_sweep;
+ AWeatherRadar *self = AWEATHER_RADAR(_self);
+ load_colormap(self, g_object_get_data(G_OBJECT(button), "type" ));
+ load_sweep (self, g_object_get_data(G_OBJECT(button), "sweep"));
+}
+
+static void on_time_changed(AWeatherView *view, char *time, gpointer _self)
+{
+ AWeatherRadar *self = AWEATHER_RADAR(_self);
+ g_debug("AWeatherRadar: on_time_changed - setting time");
+ // format: http://mesonet.agron.iastate.edu/data/nexrd2/raw/KABR/KABR_20090510_0323
+ char *site = aweather_view_get_site(view);
+ char *base = "http://mesonet.agron.iastate.edu/data/";
+ char *path = g_strdup_printf("nexrd2/raw/K%s/K%s_%s", site, site, time);
+
+ self->cur_radar = NULL;
+ self->cur_sweep = NULL; // Clear radar
+ aweather_gui_gl_redraw(self->gui);
+
+ cache_file(base, path, AWEATHER_AUTOMATIC, cached_cb, self);
+ g_free(path);
+}
+
+static void on_site_changed(AWeatherView *view, char *site, gpointer _self)
+{
+ AWeatherRadar *self = AWEATHER_RADAR(_self);
+ g_debug("AWeatherRadar: on_site_changed - Loading wsr88d list for %s", site);
+ char *time = NULL;
+ update_times(self, site, &time);
+ aweather_view_set_time(view, time);
+
+ g_free(time);
+}
+
+static void on_refresh(AWeatherView *view, gpointer user_data, gpointer _self)
+{
+ AWeatherRadar *self = AWEATHER_RADAR(_self);
+ char *site = aweather_view_get_site(view);
+ char *time = NULL;
+ update_times(self, site, &time);
+ aweather_view_set_time(view, time);
+ g_free(time);
+}
+
+/***********
+ * Methods *
+ ***********/
+AWeatherRadar *aweather_radar_new(AWeatherGui *gui)
+{
+ g_debug("AWeatherRadar: new");
+ AWeatherRadar *self = g_object_new(AWEATHER_TYPE_RADAR, NULL);
+ self->gui = gui;
+
+ GtkWidget *config = aweather_gui_get_widget(gui, "tabs");
+ AWeatherView *view = aweather_gui_get_view(gui);
+
+ /* Add configuration tab */
+ self->config_body = gtk_alignment_new(0, 0, 1, 1);
+ gtk_container_set_border_width(GTK_CONTAINER(self->config_body), 5);
+ gtk_container_add(GTK_CONTAINER(self->config_body), gtk_label_new("No radar loaded"));
+ gtk_notebook_prepend_page(GTK_NOTEBOOK(config), self->config_body, gtk_label_new("Radar"));
+
+ /* Set up OpenGL Stuff */
+ g_signal_connect(view, "site-changed", G_CALLBACK(on_site_changed), self);
+ g_signal_connect(view, "time-changed", G_CALLBACK(on_time_changed), self);
+ g_signal_connect(view, "refresh", G_CALLBACK(on_refresh), self);
+
+ return self;
+}
+
+static void _aweather_radar_expose(AWeatherPlugin *_self)
+{
+ AWeatherRadar *self = AWEATHER_RADAR(_self);
+ g_debug("AWeatherRadar: expose");
+ if (self->cur_sweep == NULL)
+ return;
+ Sweep *sweep = self->cur_sweep;
/* Draw the rays */
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
- glBindTexture(GL_TEXTURE_2D, sweep_tex);
+ glBindTexture(GL_TEXTURE_2D, self->cur_sweep_tex);
glEnable(GL_TEXTURE_2D);
glDisable(GL_ALPHA_TEST);
glColor4f(1,1,1,1);
glBegin(GL_QUADS);
int i;
for (i = 0; i < 256; i++) {
- glColor4ub(colormap->data[i][0],
- colormap->data[i][1],
- colormap->data[i][2],
- colormap->data[i][3]);
+ glColor4ub(self->cur_colormap->data[i][0],
+ self->cur_colormap->data[i][1],
+ self->cur_colormap->data[i][2],
+ self->cur_colormap->data[i][3]);
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
glEnable(GL_ALPHA_TEST);
glMatrixMode(GL_PROJECTION); glPopMatrix();
glMatrixMode(GL_MODELVIEW ); glPopMatrix();
- return FALSE;
-}
-
-static void on_time_changed(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_site(view);
- char *base = "http://mesonet.agron.iastate.edu/data/";
- char *path = g_strdup_printf("nexrd2/raw/K%s/K%s_%s", site, site, time);
-
- radar = NULL;
- cur_sweep = NULL; // Clear radar
- aweather_gui_gl_redraw(gui);
-
- cache_file(base, path, AWEATHER_AUTOMATIC, load_radar, NULL);
- g_free(path);
-}
-
-static void on_site_changed(AWeatherView *view, char *site, gpointer user_data)
-{
- g_message("Loading wsr88d list for %s", site);
- char *time = NULL;
- update_times(site, &time);
- aweather_view_set_time(view, time);
-
- g_free(time);
-}
-
-static void on_refresh(AWeatherView *view, gpointer user_data)
-{
- char *site = aweather_view_get_site(view);
- char *time = NULL;
- update_times(site, &time);
- aweather_view_set_time(view, time);
- g_free(time);
-}
-
-/* Init */
-gboolean radar_init(AWeatherGui *_gui)
-{
- gui = _gui;
- drawing = aweather_gui_get_widget(gui, "drawing");
- GtkWidget *config = aweather_gui_get_widget(gui, "tabs");
- AWeatherView *view = aweather_gui_get_view(gui);
-
- /* Add configuration tab */
- config_body = gtk_alignment_new(0, 0, 1, 1);
- gtk_container_set_border_width(GTK_CONTAINER(config_body), 5);
- gtk_container_add(GTK_CONTAINER(config_body), gtk_label_new("No radar loaded"));
- gtk_notebook_prepend_page(GTK_NOTEBOOK(config), config_body, gtk_label_new("Radar"));
-
- /* Set up OpenGL Stuff */
- g_signal_connect(drawing, "expose-event", G_CALLBACK(on_expose), NULL);
- g_signal_connect(view, "site-changed", G_CALLBACK(on_site_changed), NULL);
- g_signal_connect(view, "time-changed", G_CALLBACK(on_time_changed), NULL);
- g_signal_connect(view, "refresh", G_CALLBACK(on_refresh), NULL);
-
- return TRUE;
}
projects / aweather / blobdiff