Pmw.Counter Demo : Pmw Counter « GUI Pmw « Python






Pmw.Counter Demo

Pmw.Counter Demo
#Pmw copyright

#Copyright 1997-1999 Telstra Corporation Limited, Australia 
#Copyright 2000-2002 Really Good Software Pty Ltd, Australia

#Permission is hereby granted, free of charge, to any person obtaining a copy 
#of this software and associated documentation files (the "Software"), to deal 
#in the Software without restriction, including without limitation the rights 
#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
#copies of the Software, and to permit persons to whom the Software is furnished 
#to do so, subject to the following conditions:

#The above copyright notice and this permission notice shall be included in all 
#copies or substantial portions of the Software.

#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
#INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
#PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 
#HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 
#OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
#SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 





title = 'Pmw.Counter demonstration'

# Import Pmw from this directory tree.
import sys
sys.path[:0] = ['../../..']

import string
import time
import Tkinter
import Pmw

class Demo:
    def __init__(self, parent):
  # Need to use long ints here because on the Macintosh the maximum size
  # of an integer is smaller than the value returned by time.time().
  now = (long(time.time()) / 300) * 300

  # Create the Counters.
  self._date = Pmw.Counter(parent,
    labelpos = 'w',
    label_text = 'Date (4-digit year):',
    entryfield_value =
                        time.strftime('%d/%m/%Y', time.localtime(now)),
          entryfield_command = self.execute,
    entryfield_validate = {'validator' : 'date', 'format' : 'dmy'},
    datatype = {'counter' : 'date', 'format' : 'dmy', 'yyyy' : 1})

  self._isodate = Pmw.Counter(parent,
    labelpos = 'w',
    label_text = 'ISO-Date (4-digit year):',
    entryfield_value =
      time.strftime('%Y-%m-%d', time.localtime(now)),
    entryfield_command = self.execute,
    entryfield_validate = {'validator' : 'date', 'format' : 'ymd',
                        'separator' : '-' },
    datatype = {'counter' : 'date', 'format' : 'ymd', 'yyyy' : 1,
                        'separator' : '-' })

  self._time = Pmw.Counter(parent,
    labelpos = 'w',
    label_text = 'Time:',
    entryfield_value =
                        time.strftime('%H:%M:%S', time.localtime(now)),
          entryfield_validate = {'validator' : 'time',
      'min' : '00:00:00', 'max' : '23:59:59',
      'minstrict' : 0, 'maxstrict' : 0},
    datatype = {'counter' : 'time', 'time24' : 1},
    increment=5*60)
  self._real = Pmw.Counter(parent,
    labelpos = 'w',
    label_text = 'Real (with comma)\nand extra\nlabel lines:',
                label_justify = 'left',
    entryfield_value = '1,5',
    datatype = {'counter' : 'real', 'separator' : ','},
          entryfield_validate = {'validator' : 'real',
      'min' : '-2,0', 'max' : '5,0',
      'separator' : ','},
    increment = 0.1)
  self._custom = Pmw.Counter(parent,
    labelpos = 'w',
    label_text = 'Custom:',
    entryfield_value = specialword[:4],
    datatype = _custom_counter,
          entryfield_validate = _custom_validate)
  self._int = Pmw.Counter(parent,
    labelpos = 'w',
    label_text = 'Vertical integer:',
    orient = 'vertical',
    entry_width = 2,
    entryfield_value = 50,
          entryfield_validate = {'validator' : 'integer',
      'min' : 0, 'max' : 99}
  )

  counters = (self._date, self._isodate, self._time, self._real,
                self._custom)
  Pmw.alignlabels(counters)

  # Pack them all.
  for counter in counters:
      counter.pack(fill='both', expand=1, padx=10, pady=5)
  self._int.pack(padx=10, pady=5)

    def execute(self):
  print 'Return pressed, value is', self._date.get()

specialword = 'A B C D E H'

def _custom_validate(text):
    if string.find(specialword, text) == 0:
  return 1
    else:
  return -1

def _custom_counter(text, factor, increment):
    # increment is ignored here.
    if string.find(specialword, text) == 0:
  length = len(text)
  if factor == 1:
      if length >= len(specialword):
    raise ValueError, 'maximum length reached'
      return specialword[:length + 1]
  else:
      if length == 0:
    raise ValueError, 'empty string'
      return specialword[:length - 1]
    else:
  raise ValueError, 'bad string ' + text

######################################################################

# Create demo in root window for testing.
if __name__ == '__main__':
    root = Tkinter.Tk()
    Pmw.initialise(root)
    root.title(title)

    exitButton = Tkinter.Button(root, text = 'Exit', command = root.destroy)
    exitButton.pack(side = 'bottom')
    widget = Demo(root)
    root.mainloop()

           
       








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