sql-edition/servers/HorizScroll.py

   1 #!/usr/bin/env python
   2
   3 import string
   4 import sys
   5 import time
   6
   7 class HorizScroll:
   8         def __init__(self, text):
   9                 self.text = text
  10                 pass
  11
  12         def expand(self, padding=None, paddingchar=" ", dir=None, wraparound=False):
  13                 if len(self.text) <= 10:
  14                         return [text]
  15
  16                 if padding == None:
  17                         padding = len(self.text) / 2 + 1
  18
  19                 format = "%-" + str(padding) + "." + str(padding) + "s"
  20                 pad = string.replace(format % " "," ",paddingchar)
  21                 padtext = self.text + pad
  22                 if not wraparound:
  23                         numiters = len(self.text) - 10
  24                 else:
  25                         numiters = len(padtext)
  26
  27                 expansion = []
  28
  29                 for x in range(0,numiters):
  30                           expansion.append("%-10.10s" % (padtext[x:] + padtext[:x]))
  31
  32                 if dir == -1:
  33                         expansion.reverse()
  34
  35                 return expansion
  36
  37 if __name__ == '__main__':
  38         h = HorizScroll("hello cruel world")
  39         eh = h.expand()
  40         while 1:
  41                 for x in eh:
  42                         sys.stdout.write("\r")
  43                         print "%-10.10s" % x,
  44                         sys.stdout.flush()
  45                         time.sleep(0.1)
  46