C++ LabelWidget::update方法代码示例

// ----------------------------------------------------------------------------
//
void MainMenuScreen::init()
{
    Screen::init();

    m_user_id = getWidget<ButtonWidget>("user-id");
    assert(m_user_id);

    // reset in case we're coming back from a race
    StateManager::get()->resetActivePlayers();
    input_manager->getDeviceManager()->setAssignMode(NO_ASSIGN);
    input_manager->getDeviceManager()->setSinglePlayer( NULL );
    input_manager->setMasterPlayerOnly(false);

    // Avoid incorrect behaviour in certain race circumstances:
    // If a multi-player game is played with two keyboards, the 2nd
    // player selects his kart last, and only the keyboard is used
    // to select all other settings - then if the next time the kart
    // selection screen comes up, the default device will still be
    // the 2nd player. So if the first player presses 'select', it
    // will instead add a second player (so basically the key
    // binding for the second player become the default, so pressing
    // select will add a new player). See bug 3090931
    // To avoid this, we will clean the last used device, making
    // the key bindings for the first player the default again.
    input_manager->getDeviceManager()->clearLatestUsedDevice();

    if (addons_manager->isLoading())
    {
        IconButtonWidget* w = getWidget<IconButtonWidget>("addons");
        w->setDeactivated();
        w->resetAllBadges();
        w->setBadge(LOADING_BADGE);
    }

    m_online = getWidget<IconButtonWidget>("online");

    if(!m_enable_online)
        m_online->setDeactivated();

    LabelWidget* w = getWidget<LabelWidget>("info_addons");
    const core::stringw &news_text = NewsManager::get()->getNextNewsMessage();
    w->setText(news_text, true);
    w->update(0.01f);

    RibbonWidget* r = getWidget<RibbonWidget>("menu_bottomrow");
    // FIXME: why do I need to do this manually
    ((IconButtonWidget*)r->getChildren().get(0))->unfocused(PLAYER_ID_GAME_MASTER, NULL);
    ((IconButtonWidget*)r->getChildren().get(1))->unfocused(PLAYER_ID_GAME_MASTER, NULL);
    ((IconButtonWidget*)r->getChildren().get(2))->unfocused(PLAYER_ID_GAME_MASTER, NULL);

    r = getWidget<RibbonWidget>("menu_toprow");
    r->setFocusForPlayer(PLAYER_ID_GAME_MASTER);
    DemoWorld::resetIdleTime();

#if _IRR_MATERIAL_MAX_TEXTURES_ < 8
    getWidget<IconButtonWidget>("logo")->setImage("gui/logo_broken.png",
        IconButtonWidget::ICON_PATH_TYPE_RELATIVE);
#endif

}   // init

// ----------------------------------------------------------------------------
void MainMenuScreen::onUpdate(float delta,  irr::video::IVideoDriver* driver)
{
    IconButtonWidget* addons_icon = getWidget<IconButtonWidget>("addons");
    if (addons_icon != NULL)
    {
        if (addons_manager->wasError())
        {
            addons_icon->setActivated();
            addons_icon->resetAllBadges();
            addons_icon->setBadge(BAD_BADGE);
        }
        else if (addons_manager->isLoading() && UserConfigParams::m_internet_status
                == INetworkHttp::IPERM_ALLOWED)
        {
            // Addons manager is still initialising/downloading.
            addons_icon->setDeactivated();
            addons_icon->resetAllBadges();
            addons_icon->setBadge(LOADING_BADGE);
        }
        else 
        {
            addons_icon->setActivated();
            addons_icon->resetAllBadges();
        }
        // maybe add a new badge when not allowed to access the net
    }

    LabelWidget* w = getWidget<LabelWidget>("info_addons");
    w->update(delta);
    if(w->scrolledOff())
    {
        const core::stringw &news_text = news_manager->getNextNewsMessage();
        w->setText(news_text, true);
    }
}   // onUpdate

// ----------------------------------------------------------------------------
void MainMenuScreen::onUpdate(float delta)

{
    PlayerProfile *player = PlayerManager::getCurrentPlayer();
    if(PlayerManager::getCurrentOnlineState() == PlayerProfile::OS_GUEST  ||
       PlayerManager::getCurrentOnlineState() == PlayerProfile::OS_SIGNED_IN)
    {
        m_user_id->setText(player->getLastOnlineName() + "@stk");
        m_online->setActivated();
        m_online->setLabel( _("Online"));
    }
    else if (PlayerManager::getCurrentOnlineState() == PlayerProfile::OS_SIGNED_OUT)
    {
        m_online->setActivated();
        m_online->setLabel( _("Login" ));
        m_user_id->setText(player->getName());
    }
    else 
    {
        // now must be either logging in or logging out
        m_online->setDeactivated();
        m_user_id->setText(player->getName());
    }

    m_online->setLabel(PlayerManager::getCurrentOnlineId() ? _("Online")
                                                           : _("Login" )  );
    IconButtonWidget* addons_icon = getWidget<IconButtonWidget>("addons");
    if (addons_icon != NULL)
    {
        if (addons_manager->wasError())
        {
            addons_icon->setActivated();
            addons_icon->resetAllBadges();
            addons_icon->setBadge(BAD_BADGE);
        }
        else if (addons_manager->isLoading() && UserConfigParams::m_internet_status
            == Online::RequestManager::IPERM_ALLOWED)
        {
            // Addons manager is still initialising/downloading.
            addons_icon->setDeactivated();
            addons_icon->resetAllBadges();
            addons_icon->setBadge(LOADING_BADGE);
        }
        else
        {
            addons_icon->setActivated();
            addons_icon->resetAllBadges();
        }
        // maybe add a new badge when not allowed to access the net
    }

    LabelWidget* w = getWidget<LabelWidget>("info_addons");
    w->update(delta);
    if(w->scrolledOff())
    {
        const core::stringw &news_text = NewsManager::get()->getNextNewsMessage();
        w->setText(news_text, true);
    }
}   // onUpdate