lilypond.py 文件源码

def png(contents, staffsize):
    """Creates a png if needed."""
    outfile = os.path.join(IMAGEDIR, sha(contents + str(staffsize)))
    src = outfile + '.png'
    if not os.path.isfile(src):
        try:
            os.mkdir(IMAGEDIR)
            stderr.write('Created directory ' + IMAGEDIR + '\n')
        except OSError:
            pass
        ly2png(contents, outfile, staffsize)
        stderr.write('Created image ' + src + '\n')
    return src