1+ '''
2+ Created on Oct 24, 2017
3+
4+ @author: Aditya
5+
6+ Program for demonstrating use of Progress bar and Scale Widget in tkinter
7+
8+ '''
9+ 10+ import tkinter as tk
11+ from tkinter import ttk
12+ 13+ 14+ class ControlledProgress :
15+ def __init__ (self , master ):
16+ ttk .Label (master , text = "PROGRESS CONTROL" ).pack ()
17+ 18+ # Inderterminant Progressbar
19+ ttk .Label (master , text = 'Inderterminant Progress' ).pack ()
20+ self .prgrsbr_indtr = ttk .Progressbar (master , orient = tk .HORIZONTAL , length = 300 , mode = 'indeterminate' )
21+ self .prgrsbr_indtr .pack ()
22+ self .checkpbi = tk .StringVar ()
23+ self .checkpbi .set ("Start" )
24+ 25+ # Button
26+ self .btn1 = ttk .Button (master , text = "{} Inderterminant Progress Bar" .format (self .checkpbi .get ()), command = self .btn1cmd )
27+ self .btn1 .pack ()
28+ 29+ # Derterminant progress
30+ ttk .Label (master , text = 'Derterminant Progress' ).pack ()
31+ self .prgrsbr_dtr = ttk .Progressbar (master , orient = tk .HORIZONTAL , length = 300 , mode = 'determinate' )
32+ self .prgrsbr_dtr .pack ()
33+ self .prgrsbr_dtr .config (maximum = 10.0 , value = 2.0 ) # notice both these properties have float values
34+ 35+ # Button
36+ ttk .Button (master , text = 'Reset Progress Bar to zero' , command = self .resetProgressBarVal ).pack ()
37+ 38+ # Button
39+ ttk .Button (master , text = 'Increase Progress Bar by 2' , command = self .shift2ProgressBarVal ).pack ()
40+ 41+ # create double variable
42+ self .prgrsBrVal = tk .DoubleVar ()
43+ 44+ self .prgrsbr_dtr .config (variable = self .prgrsBrVal ) # set variable property of progressbar to look at DoubleVar()
45+ 46+ # Scale widget
47+ self .scalebar = ttk .Scale (master , orient = tk .HORIZONTAL , length = 400 , variable = self .prgrsBrVal , from_ = 0.0 , to = 10.0 )
48+ self .scalebar .pack ()
49+ 50+ # Label to display current value of scalebar
51+ ttk .Label (master , text = "Current value of Progress Bar is as below:" ).pack ()
52+ self .scalebar_label = ttk .Label (master , textvariable = self .prgrsBrVal )
53+ self .scalebar_label .pack ()
54+ 55+ def btn1cmd (self ):
56+ if self .checkpbi .get () == "Start" :
57+ self .checkpbi .set ("Stop" )
58+ self .btn1 .config (text = "{} Inderterminant Progress Bar" .format (self .checkpbi .get ()))
59+ self .prgrsbr_indtr .start ()
60+ else :
61+ self .checkpbi .set ("Start" )
62+ self .btn1 .config (text = "{} Inderterminant Progress Bar" .format (self .checkpbi .get ()))
63+ self .prgrsbr_indtr .stop ()
64+ 65+ 66+ def resetProgressBarVal (self ):
67+ #self.prgrsbr_dtr.config(value = 0.0)
68+ self .prgrsBrVal .set (0.0 )
69+ 70+ def shift2ProgressBarVal (self ):
71+ self .prgrsbr_dtr .step (2 )
72+ 73+ def ControlledPorgressApp ():
74+ root = tk .Tk ()
75+ ControlledProgress (root )
76+ tk .mainloop ()
77+ 78+ def test ():
79+ ControlledPorgressApp ()
80+ 81+ if __name__ == '__main__' : test ()
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