X-Git-Url: http://pileus.org/git/?p=grits;a=blobdiff_plain;f=src%2Fplugin-ridge.c;h=90ad4d1bf9898d2b50c50080686505a8b2f5fa4c;hp=77ac2ae55a4d2fbde294e1d19c502b1df94d6b86;hb=5e979044ddae3f2e9d31f480dd103bfb0fa7103b;hpb=d1d479adc78f455398046e115ffd382954d3cc82 diff --git a/src/plugin-ridge.c b/src/plugin-ridge.c index 77ac2ae..90ad4d1 100644 --- a/src/plugin-ridge.c +++ b/src/plugin-ridge.c @@ -1,3 +1,20 @@ +/* + * Copyright (C) 2009 Andy Spencer + * + * 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 + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + #include #include #include @@ -6,7 +23,57 @@ #include #include "aweather-gui.h" +#include "plugin-ridge.h" +#include "data.h" + +/**************** + * GObject code * + ****************/ +/* Plugin init */ +static void aweather_ridge_plugin_init(AWeatherPluginInterface *iface); +static void aweather_ridge_expose(AWeatherPlugin *_ridge); +G_DEFINE_TYPE_WITH_CODE(AWeatherRidge, aweather_ridge, G_TYPE_OBJECT, + G_IMPLEMENT_INTERFACE(AWEATHER_TYPE_PLUGIN, + aweather_ridge_plugin_init)); +static void aweather_ridge_plugin_init(AWeatherPluginInterface *iface) +{ + g_debug("AWeatherRidge: plugin_init"); + /* Add methods to the interface */ + iface->expose = aweather_ridge_expose; +} +/* Class/Object init */ +static void aweather_ridge_init(AWeatherRidge *ridge) +{ + g_debug("AWeatherRidge: init"); + /* Set defaults */ + ridge->gui = NULL; +} +static void aweather_ridge_dispose(GObject *gobject) +{ + g_debug("AWeatherRidge: dispose"); + AWeatherRidge *self = AWEATHER_RIDGE(gobject); + /* Drop references */ + G_OBJECT_CLASS(aweather_ridge_parent_class)->dispose(gobject); +} +static void aweather_ridge_finalize(GObject *gobject) +{ + g_debug("AWeatherRidge: finalize"); + AWeatherRidge *self = AWEATHER_RIDGE(gobject); + /* Free data */ + G_OBJECT_CLASS(aweather_ridge_parent_class)->finalize(gobject); + +} +static void aweather_ridge_class_init(AWeatherRidgeClass *klass) +{ + g_debug("AWeatherRidge: class_init"); + GObjectClass *gobject_class = (GObjectClass*)klass; + gobject_class->dispose = aweather_ridge_dispose; + gobject_class->finalize = aweather_ridge_finalize; +} +/********************* + * Overlay constants * + *********************/ enum { LAYER_TOPO, LAYER_COUNTY, @@ -16,71 +83,48 @@ enum { LAYER_COUNT }; -static struct { - char *fmt; +typedef struct { + gchar *name; + gchar *fmt; + gboolean enabled; float z; guint tex; -} layers[] = { - [LAYER_TOPO] = { "Overlays/" "Topo/" "Short/" "%s_Topo_Short.jpg", 1, 0 }, - [LAYER_COUNTY] = { "Overlays/" "County/" "Short/" "%s_County_Short.gif", 3, 0 }, - [LAYER_RIVERS] = { "Overlays/" "Rivers/" "Short/" "%s_Rivers_Short.gif", 4, 0 }, - [LAYER_HIGHWAYS] = { "Overlays/" "Highways/" "Short/" "%s_Highways_Short.gif", 5, 0 }, - [LAYER_CITY] = { "Overlays/" "Cities/" "Short/" "%s_City_Short.gif", 6, 0 }, +} layer_t; + +static layer_t layers[] = { + [LAYER_TOPO] = {"Topo", "Overlays/Topo/Short/%s_Topo_Short.jpg", TRUE, 1, 0}, + [LAYER_COUNTY] = {"Counties", "Overlays/County/Short/%s_County_Short.gif", TRUE, 3, 0}, + [LAYER_RIVERS] = {"Rivers", "Overlays/Rivers/Short/%s_Rivers_Short.gif", FALSE, 4, 0}, + [LAYER_HIGHWAYS] = {"Highways", "Overlays/Highways/Short/%s_Highways_Short.gif", FALSE, 5, 0}, + [LAYER_CITY] = {"Cities", "Overlays/Cities/Short/%s_City_Short.gif", TRUE, 6, 0}, }; -static CURL *curl_handle; - -/** - * Cache a image from Ridge to the local disk - * \param path Path to the Ridge file, starting after /ridge/ - * \return The local path to the cached image - */ -char *cache_image(char *path) -{ - gchar base[] = "http://radar.weather.gov/ridge/"; - gchar *url = g_strconcat(base, path, NULL); - gchar *local = g_build_filename(g_get_user_cache_dir(), PACKAGE, path, NULL); - if (!g_file_test(local, G_FILE_TEST_EXISTS)) { - if (!g_file_test(g_path_get_dirname(local), G_FILE_TEST_IS_DIR)) { - //g_printerr("Making directory %s\n", g_path_get_dirname(local)); - g_mkdir_with_parents(g_path_get_dirname(local), 0755); - } - //g_printerr("Fetching image %s -> %s\n", url, local); - long http_code; - FILE *cached_image = fopen(local, "w+"); - curl_easy_setopt(curl_handle, CURLOPT_URL, url); - curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, cached_image); - curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, NULL); - curl_easy_perform(curl_handle); - curl_easy_getinfo(curl_handle, CURLINFO_RESPONSE_CODE, &http_code); - fflush(cached_image); - if (http_code != 200) { - g_message("http %ld while fetching %s", http_code, url); - remove(local); - return NULL; - } - } - return local; -} -/** +/*********** + * Helpers * + ***********/ +/* * Load an image into an OpenGL texture * \param filename Path to the image file * \return The OpenGL identifier for the texture */ -guint load_texture(char *filename) +void load_texture(AWeatherRidge *self, layer_t *layer, gchar *filename) { + aweather_gui_gl_begin(self->gui); + /* Load image */ GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(filename, NULL); + if (!pixbuf) + g_warning("Failed to load texture: %s", filename); guchar *pixels = gdk_pixbuf_get_pixels(pixbuf); int width = gdk_pixbuf_get_width(pixbuf); int height = gdk_pixbuf_get_height(pixbuf); int format = gdk_pixbuf_get_has_alpha(pixbuf) ? GL_RGBA : GL_RGB; /* Create Texture */ - guint id; - glGenTextures(1, &id); - glBindTexture(GL_TEXTURE_2D, id); // 2d texture (x and y size) + glDeleteTextures(1, &layer->tex); + glGenTextures(1, &layer->tex); + glBindTexture(GL_TEXTURE_2D, layer->tex); // 2d texture (x and y size) glPixelStorei(GL_UNPACK_ALIGNMENT, 1); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, @@ -88,63 +132,111 @@ guint load_texture(char *filename) glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - g_message("loaded image: w=%-3d h=%-3d fmt=%x px=(%02x,%02x,%02x,%02x) img=%s", + char *base = g_path_get_basename(filename); + g_debug("AWeatherRidge: load_texture - " + "w=%-3d h=%-3d fmt=%x px=(%02x,%02x,%02x,%02x) img=%s", width, height, format, pixels[0], pixels[1], pixels[2], pixels[3], - g_path_get_basename(filename)); - return id; + base); + g_free(base); + + aweather_gui_gl_end(self->gui); + + g_object_unref(pixbuf); + + /* Redraw */ + aweather_gui_gl_redraw(self->gui); +} + + +/***************** + * ASync helpers * + *****************/ +typedef struct { + AWeatherRidge *self; + layer_t *layer; +} cached_t; +void cached_cb(gchar *filename, gboolean updated, gpointer _udata) +{ + cached_t *udata = _udata; + load_texture(udata->self, udata->layer, filename); + g_free(udata); } -static void set_site(AWeatherView *view, char *site, AWeatherGui *gui) +/************* + * callbacks * + *************/ +static void on_site_changed(AWeatherView *view, gchar *site, AWeatherRidge *self) { - g_message("location changed to %s", site); - aweather_gui_gl_begin(gui); + g_debug("AWeatherRidge: on_site_changed - site=%s", site); for (int i = 0; i < LAYER_COUNT; i++) { - if (layers[i].tex != 0) - continue; - char *path = g_strdup_printf(layers[i].fmt, site); - char *local = cache_image(path); - layers[i].tex = load_texture(local); - g_free(local); + gchar *base = "http://radar.weather.gov/ridge/"; + gchar *path = g_strdup_printf(layers[i].fmt, site); + cached_t *udata = g_malloc(sizeof(cached_t)); + udata->self = self; + udata->layer = &layers[i]; + cache_file(base, path, AWEATHER_NEVER, cached_cb, udata); g_free(path); } - aweather_gui_gl_end(gui); } -static gboolean expose(GtkWidget *da, GdkEventExpose *event, AWeatherGui *gui) +void toggle_layer(GtkToggleButton *check, AWeatherGui *gui) +{ + layer_t *layer = g_object_get_data(G_OBJECT(check), "layer"); + layer->enabled = gtk_toggle_button_get_active(check); + aweather_gui_gl_redraw(gui); +} + +/*********** + * Methods * + ***********/ +AWeatherRidge *aweather_ridge_new(AWeatherGui *gui) +{ + AWeatherRidge *ridge = g_object_new(AWEATHER_TYPE_RIDGE, NULL); + ridge->gui = gui; + + AWeatherView *view = aweather_gui_get_view(gui); + GtkWidget *drawing = aweather_gui_get_widget(gui, "drawing"); + GtkWidget *config = aweather_gui_get_widget(gui, "tabs"); + + /* Add configuration tab */ + GtkWidget *tab = gtk_label_new("Ridge"); + GtkWidget *body = gtk_alignment_new(0.5, 0, 0, 0); + GtkWidget *hbox = gtk_hbox_new(FALSE, 10); + for (int i = 0; i < LAYER_COUNT; i++) { + GtkWidget *check = gtk_check_button_new_with_label(layers[i].name); + gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(check), layers[i].enabled); + gtk_box_pack_start(GTK_BOX(hbox), check, FALSE, TRUE, 0); + g_object_set_data(G_OBJECT(check), "layer", &layers[i]); + g_signal_connect(check, "toggled", G_CALLBACK(toggle_layer), gui); + } + gtk_container_add(GTK_CONTAINER(body), hbox); + gtk_notebook_append_page(GTK_NOTEBOOK(config), body, tab); + + g_signal_connect(view, "site-changed", G_CALLBACK(on_site_changed), ridge); + + return ridge; +} + +static void aweather_ridge_expose(AWeatherPlugin *_ridge) { - //g_message("ridge:expose"); - aweather_gui_gl_begin(gui); + AWeatherRidge *ridge = AWEATHER_RIDGE(_ridge); + + g_debug("AWeatherRidge: expose"); glPushMatrix(); glEnable(GL_TEXTURE_2D); glColor4f(1,1,1,1); for (int i = 0; i < LAYER_COUNT; i++) { + if (!layers[i].enabled) + continue; glBindTexture(GL_TEXTURE_2D, layers[i].tex); - glBegin(GL_POLYGON); - glTexCoord2f(0.0, 0.0); glVertex3f(500*1000*-1.0, 500*1000* 1.0, layers[i].z); - glTexCoord2f(0.0, 1.0); glVertex3f(500*1000*-1.0, 500*1000*-1.0, layers[i].z); - glTexCoord2f(1.0, 1.0); glVertex3f(500*1000* 1.0, 500*1000*-1.0, layers[i].z); - glTexCoord2f(1.0, 0.0); glVertex3f(500*1000* 1.0, 500*1000* 1.0, layers[i].z); + glTexCoord2f(0.0, 0.0); glVertex3f(240*1000*-1.0, 282*1000* 1.0, layers[i].z); + glTexCoord2f(0.0, 1.0); glVertex3f(240*1000*-1.0, 282*1000*-1.0, layers[i].z); + glTexCoord2f(1.0, 1.0); glVertex3f(240*1000* 1.0, 282*1000*-1.0, layers[i].z); + glTexCoord2f(1.0, 0.0); glVertex3f(240*1000* 1.0, 282*1000* 1.0, layers[i].z); glEnd(); } glPopMatrix(); - aweather_gui_gl_end(gui); - return FALSE; -} - -gboolean ridge_init(AWeatherGui *gui) -{ - GtkDrawingArea *drawing = aweather_gui_get_drawing(gui); - AWeatherView *view = aweather_gui_get_view(gui); - - /* Set up OpenGL Stuff */ - g_signal_connect(drawing, "expose-event", G_CALLBACK(expose), gui); - g_signal_connect(view, "location-changed", G_CALLBACK(set_site), gui); - - curl_global_init(CURL_GLOBAL_ALL); - curl_handle = curl_easy_init(); - - return TRUE; }