font_desc = pango_font_description_from_string(font);
pango_font_description_set_size(font_desc, size * PANGO_SCALE);
pango_layout_set_font_description(layout, font_desc);
font_desc = pango_font_description_from_string(font);
pango_font_description_set_size(font_desc, size * PANGO_SCALE);
pango_layout_set_font_description(layout, font_desc);