cc->rectangle(comp_rect.x + 0.5f, comp_rect.y + 0.5f, comp_rect.width - 1.0f, comp_rect.height - 1.0f);
cc->set_line_width(1.0f);
cc->set_source_rgb (1.0f, 1.0f, 1.0f);
cc->rectangle(comp_rect.x + 0.5f, comp_rect.y + 0.5f, comp_rect.width - 1.0f, comp_rect.height - 1.0f);
cc->set_line_width(1.0f);
cc->set_source_rgb (1.0f, 1.0f, 1.0f);