MyImageMenuItem extending WMenu

gistfile1.txt

/*****************************************************************************/
/* my implementation of WMenu using thumbnail images as link */
class MyImageMenuItem : public Wt::WMenuItem
{
public:
    MyImageMenuItem(Wt::WImage* img, Wt::WWidget *contents,
        Wt::WMenuItem::LoadPolicy policy = Wt::WMenuItem::LazyLoading);
protected:
    void updateItemWidget(Wt::WWidget *itemWidget);
    Wt::WWidget *createItemWidget();
private:
    Wt::WImage* img_;
};

MyImageMenuItem::MyImageMenuItem(Wt::WImage* img, Wt::WWidget *contents,
    Wt::WMenuItem::LoadPolicy policy)
    : Wt::WMenuItem("", contents, policy),
    img_(0)
{
    img_ = img;
}

Wt::WWidget *MyImageMenuItem::createItemWidget()
{
    Wt::WContainerWidget *contents = new Wt::WContainerWidget();
    Wt::WAnchor *anchor = new Wt::WAnchor();
    contents->addWidget(anchor);
    anchor->setImage(img_);
    img_->setAlternateText(text());

    return contents;
}

void MyImageMenuItem::updateItemWidget(Wt::WWidget *itemWidget)
{
    Wt::WContainerWidget *contents = dynamic_cast<Wt::WContainerWidget *>(itemWidget);
    Wt::WWidget *anchor = contents->widget(0);
    Wt::WMenuItem::updateItemWidget(anchor);
}
/*****************************************************************************/