+#include "location.h"
+
+/*************
+ * callbacks *
+ *************/
+gboolean on_window_key_press_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
+{
+ if (event->keyval == GDK_q)
+ gtk_main_quit();
+ return TRUE;
+}
+
+void on_site_changed(GtkComboBox *combo, AWeatherGui *gui)
+{
+ gchar *site;
+ GtkTreeIter iter;
+ GtkTreeModel *model = gtk_combo_box_get_model(combo);
+ gtk_combo_box_get_active_iter(combo, &iter);
+ gtk_tree_model_get(model, &iter, 1, &site, -1);
+ AWeatherView *view = aweather_gui_get_view(gui);
+ aweather_view_set_location(view, site);
+}
+
+void on_time_changed(GtkTreeView *view, GtkTreePath *path,
+ GtkTreeViewColumn *column, AWeatherGui *gui)
+{
+ gchar *time;
+ GtkTreeIter iter;
+ GtkTreeModel *model = gtk_tree_view_get_model(view);
+ gtk_tree_model_get_iter(model, &iter, path);
+ gtk_tree_model_get(model, &iter, 0, &time, -1);
+ AWeatherView *aview = aweather_gui_get_view(gui);
+ aweather_view_set_time(aview, time);
+}
+
+static gboolean map(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui)
+{
+ //g_message("map:map");
+ AWeatherView *view = aweather_gui_get_view(gui);
+ aweather_view_set_location(view, "IND");
+
+ /* Misc */
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+
+ /* Tessellation, "finding intersecting triangles" */
+ /* http://research.microsoft.com/pubs/70307/tr-2006-81.pdf */
+ /* http://www.opengl.org/wiki/Alpha_Blending */
+ glAlphaFunc(GL_GREATER,0.1);
+ glEnable(GL_ALPHA_TEST);
+
+ /* Depth test */
+ glClearDepth(1.0);
+ glDepthFunc(GL_LEQUAL);
+ glEnable(GL_DEPTH_TEST);
+
+ aweather_gui_gl_end(gui);
+ return FALSE;
+}
+
+static gboolean configure(GtkWidget *da, GdkEventConfigure *event, AWeatherGui *gui)
+{
+ aweather_gui_gl_begin(gui);
+
+ double width = da->allocation.width;
+ double height = da->allocation.height;
+ double dist = 500*1000; // 500 km
+ double cam = 300*1000; // 500 km
+
+ glViewport(0, 0, width, height);
+
+ /* Perspective */
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ double rad = atan(height/2*1000.0/dist); // 1px = 1000 meters
+ double deg = (rad*180)/M_PI;
+ gluPerspective(deg*2, width/height, cam-20, cam+20);
+
+ /* Camera position? */
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -cam);
+ //glRotatef(-45, 1, 0, 0);
+
+ aweather_gui_gl_end(gui);
+ return FALSE;
+}
+
+static gboolean expose_begin(GtkWidget *da, GdkEventExpose *event, AWeatherGui *gui)
+{
+ aweather_gui_gl_begin(gui);
+ return FALSE;
+}
+static gboolean expose_end(GtkWidget *da, GdkEventExpose *event, AWeatherGui *gui)
+{
+ g_message("aweather:espose_end\n");
+ aweather_gui_gl_end(gui);
+ aweather_gui_gl_flush(gui);
+ return FALSE;
+}
+
+/* TODO: replace the code in these with `gtk_tree_model_find' utility */
+static void update_time_widget(AWeatherView *view, char *time, AWeatherGui *gui)
+{
+ g_message("updating time widget");
+ GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time"));
+ GtkTreeModel *model = GTK_TREE_MODEL(gtk_tree_view_get_model(tview));
+ for (int i = 0; i < gtk_tree_model_iter_n_children(model, NULL); i++) {
+ char *text;
+ GtkTreeIter iter;
+ gtk_tree_model_iter_nth_child(model, &iter, NULL, i);
+ gtk_tree_model_get(model, &iter, 0, &text, -1);
+ if (g_str_equal(text, time)) {
+ GtkTreePath *path = gtk_tree_model_get_path(model, &iter);
+ g_signal_handlers_block_by_func(tview, G_CALLBACK(on_site_changed), gui);
+ gtk_tree_view_set_cursor(tview, path, NULL, FALSE);
+ g_signal_handlers_unblock_by_func(tview, G_CALLBACK(on_site_changed), gui);
+ return;
+ }
+ }
+}
+static void update_location_widget(AWeatherView *view, char *location, AWeatherGui *gui)
+{
+ g_message("updating location widget to %s", location);
+ GtkComboBox *combo = GTK_COMBO_BOX(aweather_gui_get_widget(gui, "site"));
+ GtkTreeModel *model = GTK_TREE_MODEL(gtk_combo_box_get_model(combo));
+ for (int i = 0; i < gtk_tree_model_iter_n_children(model, NULL); i++) {
+ GtkTreeIter iter1;
+ gtk_tree_model_iter_nth_child(model, &iter1, NULL, i);
+ for (int i = 0; i < gtk_tree_model_iter_n_children(model, &iter1); i++) {
+ GtkTreeIter iter2;
+ gtk_tree_model_iter_nth_child(model, &iter2, &iter1, i);
+ char *text;
+ gtk_tree_model_get(model, &iter2, 1, &text, -1);
+ if (g_str_equal(text, location)) {
+ GtkTreePath *path = gtk_tree_model_get_path(model, &iter2);
+ g_signal_handlers_block_by_func(combo, G_CALLBACK(on_site_changed), gui);
+ gtk_combo_box_set_active_iter(combo, &iter2);
+ g_signal_handlers_unblock_by_func(combo, G_CALLBACK(on_site_changed), gui);
+ g_free(text);
+ return;
+ }
+ g_free(text);
+ }
+ }
+}
+
+/*****************
+ * Setup helpers *
+ *****************/
+static void combo_sensitive(GtkCellLayout *cell_layout, GtkCellRenderer *cell,
+ GtkTreeModel *tree_model, GtkTreeIter *iter, gpointer data)
+{
+ gboolean sensitive = !gtk_tree_model_iter_has_child(tree_model, iter);
+ g_object_set(cell, "sensitive", sensitive, NULL);
+}
+
+static void site_setup(AWeatherGui *gui)
+{
+ GtkTreeIter state, city;
+ GtkTreeStore *store = gtk_tree_store_new(2, G_TYPE_STRING, G_TYPE_STRING);
+ for (int i = 0; cities[i].label; i++) {
+ if (cities[i].type == LOCATION_STATE) {
+ gtk_tree_store_append(store, &state, NULL);
+ gtk_tree_store_set (store, &state, 0, cities[i].label,
+ 1, cities[i].code, -1);
+ } else {
+ gtk_tree_store_append(store, &city, &state);
+ gtk_tree_store_set (store, &city, 0, cities[i].label,
+ 1, cities[i].code, -1);
+ }
+ }
+
+ GtkWidget *combo = aweather_gui_get_widget(gui, "site");
+ GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
+ gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combo), renderer, FALSE);
+ gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combo), renderer, "text", 0, NULL);
+ gtk_combo_box_set_model(GTK_COMBO_BOX(combo), GTK_TREE_MODEL(store));
+ gtk_cell_layout_set_cell_data_func(GTK_CELL_LAYOUT(combo), renderer,
+ combo_sensitive, NULL, NULL);
+
+ g_signal_connect(combo, "changed", G_CALLBACK(on_site_changed), gui);
+ AWeatherView *aview = aweather_gui_get_view(gui);
+ g_signal_connect(aview, "location-changed", G_CALLBACK(update_location_widget), gui);
+}
+
+static void time_setup(AWeatherGui *gui)
+{
+ GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(gui, "time"));
+ GtkTreeModel *store = GTK_TREE_MODEL(gtk_list_store_new(1, G_TYPE_STRING));
+ gtk_tree_view_set_model(tview, store);
+
+ GtkCellRenderer *rend = gtk_cell_renderer_text_new();
+ GtkTreeViewColumn *col = gtk_tree_view_column_new_with_attributes(
+ "Time", rend, "text", 0, NULL);
+ gtk_tree_view_append_column(tview, col);
+
+ g_signal_connect(tview, "row-activated", G_CALLBACK(on_time_changed), gui);
+ AWeatherView *aview = aweather_gui_get_view(gui);
+ g_signal_connect(aview, "time-changed", G_CALLBACK(update_time_widget), gui);
+}
+
+gboolean opengl_setup(AWeatherGui *gui)
+{
+ GtkDrawingArea *drawing = GTK_DRAWING_AREA(aweather_gui_get_widget(gui, "drawing"));
+
+ GdkGLConfig *glconfig = gdk_gl_config_new_by_mode(
+ GDK_GL_MODE_RGBA | GDK_GL_MODE_DEPTH |
+ GDK_GL_MODE_DOUBLE | GDK_GL_MODE_ALPHA);
+ if (!glconfig)
+ g_error("Failed to create glconfig");
+ if (!gtk_widget_set_gl_capability(GTK_WIDGET(drawing), glconfig, NULL, TRUE, GDK_GL_RGBA_TYPE))
+ g_error("GL lacks required capabilities");
+
+ /* Set up OpenGL Stuff */
+ g_signal_connect (drawing, "map-event", G_CALLBACK(map), gui);
+ g_signal_connect (drawing, "configure-event", G_CALLBACK(configure), gui);
+ g_signal_connect (drawing, "expose-event", G_CALLBACK(expose_begin), gui);
+ g_signal_connect_after(drawing, "expose-event", G_CALLBACK(expose_end), gui);
+ return TRUE;
+}
+
projects / grits / blobdiff