Demo for CheckButtons and RadioButtons. Comments in ButtonApp Code

Author: adipandas

src/main.py

@@ -10,11 +10,13 @@
 import program2 as p2
 import program3 as p3
 import program4 as p4
+import program5 as p5
 
 def main():
     p1.sayhello()
     p2.HelloAppLaunch()
     p3.GreetingAppLaunch()
     p4.launchButtonApp()
+    p5.launchButton2App()
 
 if __name__ == '__main__':main()

src/program4.py

@@ -5,6 +5,7 @@
 
 This program demonstrates the use of button widget in tkinter
 '''
+
 import tkinter as tk
 from tkinter import ttk
 

src/program5.py

@@ -0,0 +1,72 @@
+'''
+Created on Sep 7, 2017
+
+This program includes the demonstration of 
+Checkbuttons and Radio Buttons using Tkinter
+
+@author: Aditya
+'''
+
+import tkinter as tk
+from tkinter import ttk
+
+class Button2App():
+    def __init__(self, master):
+        
+        # More advanced as compared to regular buttons 
+        # Check buttons can also store binary values
+        self.checkbutton = ttk.Checkbutton(master, text = 'Check Me!')
+        self.checkbutton.pack()
+        self.label = ttk.Label(master, text = 'Ready!! Nothing has happened yet.')
+        self.label.pack()
+        # Tkinter variable classes
+        # self.boolvar = tk.BooleanVar()   # boolean type variable of tk
+        # self.dblvar = tk.DoubleVar()     # double type variable of tk
+        # self.intvar = tk.IntVar()        # int type variable of tk
+        self.checkme = tk.StringVar()     # string type variable of tk
+        self.checkme.set('NULL')            # set value for string type tkinter variable
+        print('Current value of checkme variable is \'{}\''.format(self.checkme.get()))
+        
+        # setting of binary value for check button: 1. onvaalue and 2. offvalue
+        self.checkbutton.config(variable = self.checkme, onvalue = 'I am checked!!', offvalue = 'Waiting for someone to check me!')
+        self.checkbutton.config(command = self.oncheckme)
+        
+        
+        # creating another tkinter string type variable - StringVar
+        self.papertype = tk.StringVar()     # created a variable
+        self.radiobutton1 = ttk.Radiobutton(master, text = 'Paper1', variable=self.papertype, value = 'Robotics Research')
+        self.radiobutton1.config(command = self.onselectradio)
+        self.radiobutton1.pack()
+        self.radiobutton2 = ttk.Radiobutton(master, text = 'Paper2', variable=self.papertype, value = 'Solid Mechanics Research')
+        self.radiobutton2.config(command = self.onselectradio)
+        self.radiobutton2.pack()
+        self.radiobutton3 = ttk.Radiobutton(master, text = 'Paper3', variable=self.papertype, value = 'Biology Research')
+        self.radiobutton3.config(command = self.onselectradio)
+        self.radiobutton3.pack()
+        self.radiobutton4 = ttk.Radiobutton(master, text = 'Paper4', variable=self.papertype, value = 'SPAM Research')
+        self.radiobutton4.config(command = self.onselectradio)
+        self.radiobutton4.pack()
+        self.radiobutton5 = ttk.Radiobutton(master, text = 'Change Checkme text', variable=self.papertype, value = 'Radio Checkme Selected')
+        self.radiobutton5.pack()
+        self.radiobutton5.config(command = self.onradiobuttonselect)
+
+    def oncheckme(self):                # callback function for checkbutton
+        txt = self.checkme.get()        # get the value of stringVar checkme
+        self.label.config(text = txt)   # display the value of checkme in label
+        
+    def onradiobuttonselect(self):
+        self.checkbutton.config(textvariable = self.papertype)
+        
+    def onselectradio(self):
+        self.label.config(text = self.papertype.get())
+        
+def launchButton2App():
+    root = tk.Tk()
+    Button2App(root)
+    tk.mainloop()
+    
+def test():
+    launchButton2App()
+
+if __name__ == '__main__':
+    test()