add "Enable advanced compositing features" option

this is what I'll be using to conceal various features in the future which should not be used without some understanding of what they do (OR FACE THE CONSEQUENCES)

src/bin/e_comp_cfdata.c

@@ -53,6 +53,7 @@ e_comp_cfdata_edd_init(E_Config_DD **conf_edd, E_Config_DD **match_edd)
    E_CONFIG_VAL(D, T, smooth_windows, UCHAR);
    E_CONFIG_VAL(D, T, first_draw_delay, DOUBLE);
    E_CONFIG_VAL(D, T, disable_screen_effects, UCHAR);
+   E_CONFIG_VAL(D, T, enable_advanced_features, UCHAR);
    E_CONFIG_VAL(D, T, fast_popups, UCHAR);
    E_CONFIG_VAL(D, T, fast_borders, UCHAR);
    E_CONFIG_VAL(D, T, fast_menus, UCHAR);

src/bin/e_comp_cfdata.h

@@ -31,6 +31,7 @@ struct _E_Comp_Config
    unsigned char nofade;
    double        first_draw_delay;
    Eina_Bool disable_screen_effects;
+   Eina_Bool enable_advanced_features;
    // the following options add the "/fast" suffix to the normal groups
    Eina_Bool fast_popups;
    Eina_Bool fast_borders;

src/bin/e_int_config_comp.c

@@ -40,6 +40,7 @@ struct _E_Config_Dialog_Data
    int          fps_average_range;
    double       first_draw_delay;
    int disable_screen_effects;
+   int enable_advanced_features;
    // the following options add the "/fast" suffix to the normal groups
    int fast_popups;
    int fast_borders;
@@ -112,6 +113,7 @@ _create_data(E_Config_Dialog *cfd EINA_UNUSED)
    cfdata->match.disable_menus = conf->match.disable_menus;
    cfdata->match.disable_objects = conf->match.disable_objects;
    cfdata->disable_screen_effects = conf->disable_screen_effects;
+   cfdata->enable_advanced_features = conf->enable_advanced_features;
 
    cfdata->indirect = conf->indirect;
    cfdata->texture_from_pixmap = conf->texture_from_pixmap;
@@ -143,6 +145,17 @@ _create_data(E_Config_Dialog *cfd EINA_UNUSED)
    return cfdata;
 }
 
+static void
+_advanced_features_changed(E_Comp_Config *conf)
+{
+   conf->enable_advanced_features = !conf->enable_advanced_features;
+   if (conf->enable_advanced_features)
+     e_util_dialog_internal(_("WARNING"),
+                            _("This option WILL break your desktop if you don't know what you're doing.<br>"
+                              "Do not file bugs about anything that occurs with this option enabled.<br>"
+                              "You have been warned."));
+}
+
 static void
 _free_data(E_Config_Dialog *cfd  __UNUSED__,
            E_Config_Dialog_Data *cfdata)
@@ -337,6 +350,10 @@ _advanced_create_widgets(E_Config_Dialog *cfd, Evas *evas, E_Config_Dialog_Data
    ob = e_widget_slider_add(evas, 1, 0, _("%1.2f Seconds"), 0.01, 0.5, 0.01, 0, &(cfdata->first_draw_delay), NULL, 150);
    e_widget_framelist_object_append(of, ob);
    e_widget_list_object_append(ol, of, 1, 1, 0.5);
+   of = e_widget_framelist_add(evas, _("DANGEROUS"), 0);
+   ob = e_widget_check_add(evas, _("Enable advanced compositing features"), &(cfdata->enable_advanced_features));
+   e_widget_framelist_object_append(of, ob);
+   e_widget_list_object_append(ol, of, 1, 1, 0.5);
    e_widget_toolbook_page_append(otb, NULL, _("Misc"), ol, 0, 0, 0, 0, 0.5, 0.0);
 
    ///////////////////////////////////////////
@@ -445,6 +462,7 @@ _advanced_apply_data(E_Config_Dialog *cfd  __UNUSED__,
        (conf->match.disable_menus != cfdata->match.disable_menus) ||
        (conf->match.disable_objects != cfdata->match.disable_objects) ||
        (conf->disable_screen_effects != cfdata->disable_screen_effects) ||
+       (conf->enable_advanced_features != cfdata->enable_advanced_features) ||
        (conf->fast_popups != cfdata->fast_popups) ||
        (conf->fast_borders != cfdata->fast_borders) ||
        (conf->fast_overrides != cfdata->fast_overrides) ||
@@ -463,6 +481,8 @@ _advanced_apply_data(E_Config_Dialog *cfd  __UNUSED__,
         conf->match.disable_menus = cfdata->match.disable_menus;
         conf->match.disable_objects = cfdata->match.disable_objects;
         conf->disable_screen_effects = cfdata->disable_screen_effects;
+        if (conf->enable_advanced_features != cfdata->enable_advanced_features)
+          _advanced_features_changed(conf);
         conf->lock_fps = cfdata->lock_fps;
         conf->smooth_windows = cfdata->smooth_windows;
         conf->grab = cfdata->grab;
@@ -661,6 +681,8 @@ _basic_apply_data(E_Config_Dialog *cfd  __UNUSED__,
         conf->max_unmapped_pixels = cfdata->max_unmapped_pixels;
         conf->max_unmapped_time = cfdata->max_unmapped_time;
         conf->min_unmapped_time = cfdata->min_unmapped_time;
+        if (conf->enable_advanced_features != cfdata->enable_advanced_features)
+          _advanced_features_changed(conf);
         conf->send_flush = cfdata->send_flush;
         conf->send_dump = cfdata->send_dump;
         conf->fps_show = cfdata->fps_show;