Keyboard.py

   1 import Views, Events
   2 import sys, curses, curses.ascii
   3
   4 class Source(Events.EventSource):
   5
   6     def __init__(self, context, win):
   7         Events.EventSource.__init__(self, sys.stdin, context)
   8         self._win = win
   9
  10     def readEvents(self):
  11         return [Events.Event(self.context(),  self._win.getch())]
  12
  13
  14 class View(Views.View):
  15
  16     def __init__(self, context, label, x, y, dx, dy, size=9):
  17         Views.View.__init__(self, context, label, x, y, dx, dy)
  18         self._size = size
  19
  20     def updateView(self, bindings):
  21         self.win().clear()
  22         self.drawFrame()
  23         keys = bindings.keys()
  24         keys.sort()
  25         column = 2
  26         row = 1
  27         for key in keys:
  28             keyname = curses.keyname(key.code)
  29             if keyname.startswith('KEY_'):
  30                 keyname = '%s' % keyname[4:10].lower()
  31             if keyname[-2:-1] == '^':
  32                 keyname = '%sC-%s' % (keyname[:-2],keyname[-1:].lower())
  33             if curses.ascii.isupper(ord(keyname[-1:])):
  34                 keyname = '%sS-%s' % (keyname[:-1],keyname[-1:].lower())
  35             self.win().addstr(row, column, '%-6s %s'
  36                               % (keyname, bindings[key].label[:self._size]))
  37             row += 1
  38             if row >= self.dy-1:
  39                 row = 1
  40                 column += self._size+10
  41                 if column+self._size+7 >= self.dx : break
  42                 self.win().vline(1,column-2,curses.ACS_VLINE,self.dy-2)
  43         self.win().nooutrefresh()
  44
  45 def register( viewmanager,
  46               dispatcher,
  47               context,
  48               label,
  49               x,
  50               y,
  51               dx,
  52               dy,
  53               size=9):
  54     viewmanager.registerView( View(context, label, x,y,dx,dy,size) )
  55     dispatcher.registerSource( Source(context, viewmanager.win()) )