void GstPropertiesModule::append_property(const std::shared_ptr<GValueBase>& value_base, const std::string &prop_name)
{
	auto e = std::dynamic_pointer_cast<ElementModel>(controller->get_selected_object());
	if (!e) return;
	auto klass = controller->get_klass(e->get_type_name());
	if (!klass) return;
	auto prop = klass.get().get_property(prop_name);
	if (!prop) return;

	Gtk::Box *hbox = new Gtk::Box (Gtk::ORIENTATION_HORIZONTAL, 0);
	hbox->set_data("property-name", g_strdup (prop_name.c_str()), g_free);
	Gtk::Label *lbl = Gtk::manage(new Gtk::Label(prop_name));
	lbl->set_tooltip_text(prop->get_blurb());
	Gtk::Button *btn = Gtk::manage(new Gtk::Button("Refresh"));
	btn->signal_clicked().connect([this, prop_name] {request_selected_element_property(prop_name);});
	hbox->pack_start(*lbl, false, false);
	auto value_widget = value_base->get_widget();
	value_base->set_sensitive(prop.get().get_flags() & G_PARAM_WRITABLE);
	hbox->pack_start(*value_widget, true, true);
	hbox->pack_start(*btn, false, false);
	properties_box->pack_start(*hbox);
	hbox->show_all();
}
//------------------------------------------------------------------------------
bool mforms::gtk::ToolBarImpl::create_tool_item(mforms::ToolBarItem *item, ToolBarItemType type) {
  Gtk::Widget *w = 0;
  switch (type) {
    case mforms::TextActionItem:
    case mforms::ActionItem:
    case mforms::SwitcherItem: {
      Gtk::Button *btn = Gtk::manage(new Gtk::Button());
      btn->set_focus_on_click(false);
      btn->set_border_width(0);
      btn->set_relief(Gtk::RELIEF_NONE);
      btn->signal_clicked().connect(sigc::bind(sigc::ptr_fun(process_ctrl_action), btn, item));
      if (type == mforms::SwitcherItem)
        btn->set_always_show_image(true);
      w = btn;
      break;
    }
    case mforms::SegmentedToggleItem:
    case mforms::ToggleItem: {
      Gtk::ToggleButton *btn = Gtk::manage(new Gtk::ToggleButton());
      btn->set_focus_on_click(false);
      btn->set_relief(Gtk::RELIEF_NONE);
      btn->signal_toggled().connect(sigc::bind(sigc::ptr_fun(process_ctrl_action), btn, item));
      btn->set_inconsistent(false);

      w = btn;
      break;
    }
    case mforms::SeparatorItem: {
      Gtk::Separator *sep = new Gtk::Separator(Gtk::ORIENTATION_VERTICAL);
      w = sep;
      break;
    }
    case mforms::SearchFieldItem: {
#if GTK_VERSION_GE(2, 16)
      Gtk::Entry *entry = Gtk::manage(new Gtk::Entry());
      w = entry;
      entry->set_icon_from_stock(Gtk::Stock::FIND);
#else
      Gtk::Box *hbox = Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL, 0));
      w = hbox;
      Gtk::Image *image = Gtk::manage(new Gtk::Image(Gtk::Stock::FIND, Gtk::ICON_SIZE_MENU));
      Gtk::Entry *entry = Gtk::manage(new Gtk::Entry());

      hbox->pack_start(*image, false, true);
      hbox->pack_start(*entry, true, true);
      hbox->set_data("entry", entry);
      hbox->show_all();
#endif
      entry->signal_activate().connect(sigc::bind(sigc::ptr_fun(process_ctrl_action), entry, item));
      break;
    }
    case mforms::TextEntryItem: {
      Gtk::Box *hbox = Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL, 0));
      w = hbox;
      Gtk::Entry *entry = Gtk::manage(new Gtk::Entry());
      hbox->pack_start(*entry, true, true);
      hbox->set_data("entry", entry);
      hbox->show_all();
      entry->signal_activate().connect(sigc::bind(sigc::ptr_fun(process_ctrl_action), entry, item));
      break;
    }
    case mforms::FlatSelectorItem:
    case mforms::SelectorItem: {
      Gtk::ComboBoxText *ct = Gtk::manage(new Gtk::ComboBoxText());
      ct->signal_changed().connect(sigc::bind(sigc::ptr_fun(process_ctrl_action), ct, item));

      w = ct;
      break;
    }
    case mforms::ColorSelectorItem: {
      if (!color_combo_columns) {
        color_combo_columns = new ColorComboColumns();
      }
      Gtk::ComboBox *ct = Gtk::manage(new Gtk::ComboBox());

      ct->pack_start(color_combo_columns->image);
      ct->signal_changed().connect(sigc::bind(sigc::ptr_fun(process_ctrl_action), ct, item));

      w = ct;

      break;
    }
    case mforms::ExpanderItem:
    case mforms::LabelItem: {
      Gtk::Label *label = Gtk::manage(new Gtk::Label("", 0.0, 0.5));
      w = label;
      break;
    }
    case mforms::ImageBoxItem: {
      Gtk::Image *image = Gtk::manage(new Gtk::Image());
      w = image;
      break;
    }
    case mforms::TitleItem: {
      Gtk::Label *label = Gtk::manage(new Gtk::Label("", 0.0, 0.5));
      w = label;
      auto provider = Gtk::CssProvider::create();
      provider->load_from_data("* { color: #333; font-weight: bold; }");
      w->get_style_context()->add_provider(provider, GTK_STYLE_PROVIDER_PRIORITY_USER);
      break;
    }
  }

  if (w) {
    w->show();
  } else
    logError("create_tool_item, widget is 0 for passed type %i\n", type);

  item->set_data(w);

  return w != 0;
}