6 static GtkWidget *rotate_button;
8 static float ang = 30.;
10 static gboolean expose(GtkWidget *da, GdkEventExpose *event, gpointer user_data)
14 glTranslatef(0.5, -0.5, -2);
16 float light_ambient[] = {0.1f, 0.1f, 0.0f};
17 float light_diffuse[] = {0.9f, 0.9f, 0.9f};
18 float light_position[] = {-20.0f, 40.0f, -40.0f, 1.0f};
19 glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);
20 glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
21 glLightfv(GL_LIGHT0, GL_POSITION, light_position);
23 glEnable(GL_LIGHTING);
24 glEnable(GL_COLOR_MATERIAL);
25 glEnable(GL_DEPTH_TEST);
27 glRotatef(ang, 1, 0, 1);
28 glColor3f(0.9, 0.9, 0.7);
29 //gdk_gl_draw_teapot(TRUE, 0.25);
30 gdk_gl_draw_cube(TRUE, 0.25);
31 glColor3f(1.0, 1.0, 1.0);
34 glDisable(GL_LIGHTING);
35 glDisable(GL_COLOR_MATERIAL);
36 glDisable(GL_DEPTH_TEST);
42 static gboolean rotate(gpointer user_data)
44 if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(rotate_button)))
47 GtkWidget *da = GTK_WIDGET (user_data);
51 gdk_window_invalidate_rect(da->window, &da->allocation, FALSE);
52 gdk_window_process_updates(da->window, FALSE);
57 gboolean example_init(GtkDrawingArea *drawing, GtkNotebook *config)
59 /* Add configuration tab */
60 GtkWidget *label = gtk_label_new("example");
61 rotate_button = gtk_toggle_button_new_with_label("Rotate");
62 gtk_notebook_append_page(GTK_NOTEBOOK(config), rotate_button, label);
64 /* Set up OpenGL Stuff */
65 g_signal_connect(drawing, "expose-event", G_CALLBACK(expose), NULL);
66 g_timeout_add(1000/60, rotate, drawing);