void GraphCanvas::SetAxis(const std::string& xname, const std::string& yname)
{
Font* font = Font::GetInstance(Font::FONT_MEDIUM, Font::FONT_BOLD);
xaxis = font->CreateSurface(xname, black_color);
yaxis = font->CreateSurface(yname, black_color).RotoZoom(M_PI/2, ONE, ONE);
#ifdef HAVE_HANDHELD
/* The text being black, after rotation, the color key has been set to white */
yaxis.SetColorKey(SDL_SRCCOLORKEY, 0xFFFF);
#endif
}
