Area Text::box(const Area &area, double &font_size, Alignment &align) const
{
    PangoFontMap *font_map = pango_ft2_font_map_new();
    PangoContext *ctx = pango_font_map_create_context(font_map);

    PangoFontDescription *font_desc = pango_font_description_new();
    pango_font_description_set_family(font_desc, "Font");
    pango_font_description_set_style(font_desc, PANGO_STYLE_NORMAL);
    pango_font_description_set_variant(font_desc, PANGO_VARIANT_NORMAL);
    pango_font_description_set_weight (font_desc, PANGO_WEIGHT_NORMAL);
    pango_font_description_set_stretch(font_desc, PANGO_STRETCH_NORMAL);
    pango_font_description_set_size(font_desc, 100 * PANGO_SCALE);
    pango_context_set_font_description(ctx, font_desc);

    PangoLayout *layout = pango_layout_new(ctx);

    pango_layout_set_text(layout, m_text.c_str(), m_text.size());
    pango_layout_set_indent(layout, 0);

    int width, height;
    pango_layout_get_pixel_size(layout, &width, &height);
    g_object_unref(layout);

    double scale;
    Alignment area_align, text_align;
    if (area.width() >= area.height())
    {
        // area is horizontal dimensioned
        scale = area.width();
        area_align = Alignment::HORIZONTAL;
    } else
    {
        // area is vertically dimensioned
        scale = area.height();
        area_align = Alignment::VERTICAL;
    }

    if (width >= height)
    {
        // text box is horizontal dimensioned
        scale /= width;
        text_align = Alignment::HORIZONTAL;
    } else
    {
        // text box is vertically dimensioned
        scale /= height;
        text_align = Alignment::VERTICAL;
    }

    width *= scale;
    height *= scale;
    if (area_align == text_align)
        align = HORIZONTAL;
    else
        align = VERTICAL;

    Area result;
    result.begin() = area.begin();
    result.end() = area.begin() + Pixel(width, height);

    return result;
}