Logger.py

   1 import textwrap, time
   2
   3 logger = None
   4
   5 def init(viewmanager, x, y, dx, dy, logfile=None):
   6     global logger
   7     logger = Logger(viewmanager.win(), x, y, dx, dy, logfile)
   8
   9 class Logger(object):
  10
  11     def __init__(self, win, x, y, dx, dy, logfile=None):
  12         self._win = win.derwin(dy,dx,y,x)
  13         self._win.border()
  14         self._win.addstr(0,2,' Log ')
  15         self._win.nooutrefresh()
  16         self._textwin = self._win.derwin(dy-2,dx-3,1,2)
  17         self._textwin.scrollok(1)
  18         self._wrapper = textwrap.TextWrapper(width = dx-4,
  19                                              subsequent_indent = ' '*4)
  20         if logfile:
  21             self._logfile = file(logfile,"a")
  22         else:
  23             self._logfile = None
  24
  25     def log(self, src, msg):
  26         text = '[%s] (%s) %s' %  (time.strftime("%H:%M:%S",time.localtime()),src, msg)
  27         if self._logfile:
  28             self._logfile.write(text+"\n")
  29             self._logfile.flush()
  30         lines = self._wrapper.wrap(text)
  31         lines = lines[max(0,len(lines)-self._textwin.getmaxyx()[0]):]
  32         self._textwin.scroll(len(lines))
  33         for i in range(min(len(lines),self._textwin.getmaxyx()[0]-2)):
  34             self._textwin.addstr(self._textwin.getmaxyx()[0]-len(lines)+i,0,
  35                                  lines[i])
  36         self._textwin.nooutrefresh()
  37
  38 def log(src,msg):
  39     if logger:
  40         logger.log(src,msg)