xdot.py 文件源码

def set_dotcode(self, dotcode, filename='<stdin>'):
        if isinstance(dotcode, unicode):
            dotcode = dotcode.encode('utf8')
        p = subprocess.Popen(
            [self.filter, '-Txdot'],
            stdin=subprocess.PIPE,
            stdout=subprocess.PIPE,
            stderr=subprocess.PIPE,
            shell=False,
            universal_newlines=True
        )
        xdotcode, error = p.communicate(dotcode)
        if p.returncode != 0:
            dialog = gtk.MessageDialog(type=gtk.MESSAGE_ERROR,
                                       message_format=error,
                                       buttons=gtk.BUTTONS_OK)
            dialog.set_title('Dot Viewer')
            dialog.run()
            dialog.destroy()
            return False
        try:
            self.set_xdotcode(xdotcode)
        except ParseError, ex:
            dialog = gtk.MessageDialog(type=gtk.MESSAGE_ERROR,
                                       message_format=str(ex),
                                       buttons=gtk.BUTTONS_OK)
            dialog.set_title('Dot Viewer')
            dialog.run()
            dialog.destroy()
            return False
        else:
            self.openfilename = filename
            return True