Demo/tkinter/matt/slider-demo-1.py

   1 from Tkinter import *
   2
   3 # shows how to make a slider, set and get its value under program control
   4
   5
   6 class Test(Frame):
   7     def print_value(self, val):
   8         print "slider now at", val
   9
  10     def reset(self):
  11         self.slider.set(0)
  12
  13     def createWidgets(self):
  14         self.slider = Scale(self, {"from" : 0,
  15                                    'to': 100,
  16                                    "orient" : "horizontal",
  17                                    "length" : "3i",
  18                                    "label" : "happy slider",
  19                                    'command' : self.print_value})
  20
  21         self.reset = Button(self, {'text': 'reset slider',
  22                                   'command': self.reset})
  23
  24
  25         self.QUIT = Button(self, {'text': 'QUIT',
  26                                   'fg': 'red',
  27                                   'command': self.quit})
  28
  29
  30         self.slider.pack({'side': 'left'})
  31         self.reset.pack({'side': 'left'})
  32         self.QUIT.pack({'side': 'left', 'fill': 'both'})
  33
  34     def __init__(self, master=None):
  35         Frame.__init__(self, master)
  36         Pack.config(self)
  37         self.createWidgets()
  38
  39 test = Test()
  40 test.mainloop()