C++ (Cpp) MenuItem::Data Examples

Example #1

File: menu.cpp Project: mariuz/haiku

status_t
user_menu(Directory** _bootVolume)
{
	Menu* menu = new(std::nothrow) Menu(MAIN_MENU);
	Menu* safeModeMenu = NULL;
	Menu* debugMenu = NULL;
	MenuItem* item;

	TRACE(("user_menu: enter\n"));

	// Add boot volume
	menu->AddItem(item = new(std::nothrow) MenuItem("Select boot volume",
		add_boot_volume_menu(*_bootVolume)));

	// Add safe mode
	menu->AddItem(item = new(std::nothrow) MenuItem("Select safe mode options",
		safeModeMenu = add_safe_mode_menu()));

	// add debug menu
	menu->AddItem(item = new(std::nothrow) MenuItem("Select debug options",
		debugMenu = add_debug_menu()));

	// Add platform dependent menus
	platform_add_menus(menu);

	menu->AddSeparatorItem();

	menu->AddItem(item = new(std::nothrow) MenuItem("Reboot"));
	item->SetTarget(user_menu_reboot);
	item->SetShortcut('r');

	menu->AddItem(item = new(std::nothrow) MenuItem("Continue booting"));
	if (*_bootVolume == NULL) {
		item->SetEnabled(false);
		menu->ItemAt(0)->Select(true);
	} else
		item->SetShortcut('b');

	menu->Run();

	// See if a new boot device has been selected, and propagate that back
	if (item->Data() != NULL)
		*_bootVolume = (Directory*)item->Data();

	apply_safe_mode_options(safeModeMenu);
	apply_safe_mode_options(debugMenu);
	delete menu;

	TRACE(("user_menu: leave\n"));

	return B_OK;
}

Example #2

File: menu.cpp Project: mmanley/Antares

static void
apply_safe_mode_options(Menu *menu)
{
    MenuItemIterator iterator = menu->ItemIterator();
    MenuItem *item;
    char buffer[2048];
    int32 pos = 0;

    buffer[0] = '\0';

    while ((item = iterator.Next()) != NULL) {
        if (item->Type() == MENU_ITEM_SEPARATOR || !item->IsMarked()
                || item->Data() == NULL || (uint32)pos > sizeof(buffer))
            continue;

        size_t totalBytes = snprintf(buffer + pos, sizeof(buffer) - pos,
                                     "%s true\n", (const char *)item->Data());
        pos += std::min(totalBytes, sizeof(buffer) - pos - 1);
    }

    add_safe_mode_settings(buffer);
}