Exemple #1
0
void GPInfoDialog::addTracks()
{
    const std::vector<std::string> tracks = m_gp.getTrackNames();
    const unsigned int track_amount = tracks.size();

    int height_of_one_line = std::min((m_lower_bound - m_over_body)/(track_amount+1),
                                      (unsigned int)(GUIEngine::getFontHeight()*1.5f));

    // Count the number of label already existing labels representing a track
    unsigned int existing = 0;
    for (unsigned int i = 0; i < m_widgets.size(); i++)
    {
        if (m_widgets.get(i)->m_properties[PROP_ID] == "Track label")
            existing++;
    }

    unsigned int reuse = std::min(existing, track_amount);
    // m_widgets has the type PtrVector<Widget, HOLD>
    unsigned int widgets_iter = 0;
    for (unsigned int i = 0; i < reuse; i++)
    {
        Track* track = track_manager->getTrack(tracks[i]);

        // Find the next widget that is a track label
        while (m_widgets.get(widgets_iter)->m_properties[PROP_ID] != "Track label")
            widgets_iter++;

        Label* widget = dynamic_cast<Label*>(m_widgets.get(widgets_iter));
        widget->setText(translations->fribidize(track->getName()), false);
        widget->move(20, m_over_body + height_of_one_line*i,
                     m_area.getWidth()/2 - 20, height_of_one_line);

        widgets_iter++;
    }

    if (existing < track_amount)
    {
        // There are not enough labels for all the track names, so we have to
        // add some more
        for (unsigned int i = reuse; i < track_amount; i++)
        {
            Track* track = track_manager->getTrack(tracks[i]);
            assert(track != NULL);

            Label* widget = new Label();
            widget->m_properties[PROP_ID] = "Track label";
            widget->setText(translations->fribidize(track->getName()), false);
            widget->setParent(m_irrlicht_window);
            m_widgets.push_back(widget);
            widget->add();

            widget->move(20, m_over_body + height_of_one_line*i,
                         m_area.getWidth()/2 - 20, height_of_one_line);
        }
    }
    else if (existing > track_amount)
    {
        // There are label which are not necessary anymore so they're deleted
        for (unsigned int i = widgets_iter; i < m_widgets.size(); i++)
        {
            if (m_widgets.get(i)->m_properties[PROP_ID] == "Track label")
            {
                m_irrlicht_window->removeChild(m_widgets.get(i)->getIrrlichtElement());
                m_widgets.remove(i);
                i--;
            }
        }
    }
}