superviser_allocation_portal.py

from tkinter import *
from tkinter import messagebox

#global constants are named in ALLCAP by convention
global USERID, PASSWD
global STUDENT_NAME, STUDENT_REGI, STUDENT_SPEC, STUDENT_MOBI, STUDENT_MAIL
global SUPERVISER_UID, SUPERVISER_PWD
global SUPERVISER_NAME, SUPERVISER_REGI, SUPERVISER_SPEC, SUPERVISER_MOBI, SUPERVISER_MAIL

def student_login():
	u = USERID.get().strip() #ignore 'space'
	p = PASSWD.get()
	if not all([u,p]):messagebox.showerror("INFO", "Clicked on Login. Invalid Input.")
	else:
		messagebox.showinfo("INFO", "Data passed : {} : {}".format(u,p))

		#do whatever u want with USERIDname and password

		#clear input fields
		USERID.set('')
		PASSWD.set('')
def superviser_login():
	u = SUPERVISER_UID.get().strip() #ignore 'space'
	p = SUPERVISER_PWD.get()
	if not all([u,p]):messagebox.showerror("INFO", "Clicked on Login. Invalid Input.")
	else:
		messagebox.showinfo("INFO", "Data passed : {} : {}".format(u,p))

		#do whatever u want with USERIDname and password

		#clear input fields
		SUPERVISER_UID.set('')
		SUPERVISER_PWD.set('')

def student_reg():
	name = STUDENT_NAME.get().strip()
	regi = STUDENT_REGI.get().strip()
	spec = STUDENT_SPEC.get().strip()
	mobi = STUDENT_MOBI.get().strip()
	mail = STUDENT_MAIL.get().strip()

	#validate input and write to db
	if not all([name,regi,spec,mobi,mail]) :
		messagebox.showerror("INFO", "Clicked on Register. Invalid Input.")
	else:
		messagebox.showinfo("INFO", "{} : {} : {} : {} : {}".format(name,regi,spec,mobi,mail))

		#clear input fields
		STUDENT_NAME.set('')
		STUDENT_REGI.set('')
		STUDENT_SPEC.set('')
		STUDENT_MOBI.set('')
		STUDENT_MAIL.set('')

def superviser_reg():
	name = SUPERVISER_NAME.get().strip()
	regi = SUPERVISER_REGI.get().strip()
	spec = SUPERVISER_SPEC.get().strip()
	mobi = SUPERVISER_MOBI.get().strip()
	mail = SUPERVISER_MAIL.get().strip()

	#validate input and write to db
	if not all([name,regi,spec,mobi,mail]) :
		messagebox.showerror("INFO", "Clicked on Register. Invalid Input.")
	else:
		messagebox.showinfo("INFO", "{} : {} : {} : {} : {}".format(name,regi,spec,mobi,mail))

		#clear input fields
		SUPERVISER_NAME.set('')
		SUPERVISER_REGI.set('')
		SUPERVISER_SPEC.set('')
		SUPERVISER_MOBI.set('')
		SUPERVISER_MAIL.set('')

class App(Tk):
	def __init__(self, *args, **kwargs):
		Tk.__init__(self, *args, **kwargs)
		MainMenu(self)
		container = Frame(self)
		container.pack(fill=BOTH)
		container.pack(side="top")

		self.frames = {}

		for F in [StartPage, LoginPage, NewUserPage, SuperviserPage, InfoPage, SuperviserLoginPage, SuperviserRegPage]:
			frame = F(container, self)
			self.frames[F] = frame
			frame.grid(row=0, column=0, sticky=NSEW)

		self.show_frame(StartPage)	
	
	def show_frame(self, context):
		frame = self.frames[context]
		frame.tkraise()

class StartPage(Frame):
	def __init__(self, parent, controller):
		Frame.__init__(self, parent)
		
		top_nav = Frame(self, pady=30, bg="White")
		Button(top_nav, text="Info", width=15, bg="#2673ef", fg="White", command=lambda:controller.show_frame(InfoPage)).pack(side=RIGHT)
		Button(top_nav, text="Superviser", width=15, bg="#2673ef", fg="White", command=lambda:controller.show_frame(SuperviserPage)).pack(side=RIGHT)
		Button(top_nav, text="New User", width=15, bg="#2673ef", fg="White", command=lambda:controller.show_frame(NewUserPage)).pack(side=RIGHT)
		Button(top_nav, text="Login", width=15, bg="#2673ef", fg="White", command=lambda:controller.show_frame(LoginPage)).pack(side=RIGHT)
		top_nav.pack(side=TOP)
		
		Label(self, text="Start Page", height=3,bg="#2673ef", fg="White").pack(side=TOP,fill=X)


class LoginPage(Frame):
	def __init__(self, parent, controller):
		Frame.__init__(self, parent)

		global USERID, PASSWD

		top_nav = Frame(self,pady=30, bg="White")
		Button(top_nav, text="Info", width=15, bg="#2673ef", fg="White", command=lambda:controller.show_frame(InfoPage)).pack(side=RIGHT)
		Button(top_nav, text="Superviser", width=15, bg="#2673ef", fg="White",command=lambda:controller.show_frame(SuperviserPage)).pack(side=RIGHT)
		Button(top_nav, text="New User", width=15, bg="#2673ef", fg="White", command=lambda:controller.show_frame(NewUserPage)).pack(side=RIGHT)
		Button(top_nav, text="Login", width=15, command=lambda:controller.show_frame(StartPage)).pack(side=RIGHT)
		top_nav.pack(side=TOP)
		
		Label(self, text="Student Login", height=3, bg="#2673ef", fg="White").pack(side=TOP,fill=X)
		
		row1 = Frame(self)
		USERID = StringVar()
		Label(row1, text="Username", width=15).pack(side=LEFT)
		Entry(row1, textvariable=USERID, width=22).pack(side=LEFT)
		Label(row1, text="", width=15).pack(side=LEFT)
		row1.pack(expand=YES)
		
		row2 = Frame(self)
		PASSWD = StringVar()
		Label(row2, text="Password", width=15).pack(side=LEFT)
		Entry(row2, textvariable=PASSWD, width=22,show="*").pack(side=LEFT)
		Label(row2, text="", width=15).pack(side=LEFT)
		row2.pack(expand=YES)
		

		row3 = Frame(self)
		Label(row3, text="", width=23).pack(side=LEFT)
		Button(row3, text="Login", width=20, bg="#2673ef", fg="White", command=student_login).pack(side=LEFT,  expand=YES)
		Button(row3, text="Register", width=20, bg="#2673ef", fg="White", command=lambda:controller.show_frame(NewUserPage)).pack(side=LEFT, expand=YES)
		row3.pack(expand=YES)

class SuperviserLoginPage(Frame):
	def __init__(self, parent, controller):
		Frame.__init__(self, parent)

		global SUPERVISER_UID, SUPERVISER_PWD

		top_nav = Frame(self,pady=30, bg="White")
		Button(top_nav, text="Info", width=15, bg="#2673ef", fg="White", command=lambda:controller.show_frame(InfoPage)).pack(side=RIGHT)
		Button(top_nav, text="Superviser", width=15, bg="#2673ef", fg="White",command=lambda:controller.show_frame(SuperviserPage)).pack(side=RIGHT)
		Button(top_nav, text="New User", width=15, bg="#2673ef", fg="White", command=lambda:controller.show_frame(NewUserPage)).pack(side=RIGHT)
		Button(top_nav, text="Login", width=15,bg="#2673ef", fg="White", command=lambda:controller.show_frame(LoginPage)).pack(side=RIGHT)
		top_nav.pack(side=TOP)
		
		Label(self, text="Superviser Login", height=3, bg="#2673ef", fg="White").pack(side=TOP,fill=X)
		
		row1 = Frame(self)
		SUPERVISER_UID = StringVar()
		Label(row1, text="UID", width=15).pack(side=LEFT)
		Entry(row1, textvariable=SUPERVISER_UID, width=22).pack(side=LEFT)
		Label(row1, text="", width=15).pack(side=LEFT)
		row1.pack(expand=YES)
		
		row2 = Frame(self)
		SUPERVISER_PWD = StringVar()
		Label(row2, text="Password", width=15).pack(side=LEFT)
		Entry(row2, textvariable=SUPERVISER_PWD, width=22,show="*").pack(side=LEFT)
		Label(row2, text="", width=15).pack(side=LEFT)
		row2.pack(expand=YES)
		

		row3 = Frame(self)
		Label(row3, text="", width=23).pack(side=LEFT)
		Button(row3, text="Login", width=20, bg="#2673ef", fg="White", command=superviser_login).pack(side=LEFT,  expand=YES)
		Button(row3, text="Register", width=20, bg="#2673ef", fg="White", command=lambda:controller.show_frame(SuperviserRegPage)).pack(side=LEFT, expand=YES)
		row3.pack(expand=YES)
		

class SuperviserRegPage(Frame):
	def __init__(self, parent, controller):
		Frame.__init__(self, parent)

		global SUPERVISER_NAME, SUPERVISER_REGI, SUPERVISER_SPEC, SUPERVISER_MOBI, SUPERVISER_MAIL
		
		top_nav = Frame(self,pady=30, bg="White")
		Button(top_nav, text="Info", width=15, bg="#2673ef", fg="White", command=lambda:controller.show_frame(InfoPage)).pack(side=RIGHT)
		Button(top_nav, text="Superviser", width=15, bg="#2673ef", fg="White",command=lambda:controller.show_frame(SuperviserPage)).pack(side=RIGHT)
		Button(top_nav, text="New User", width=15,bg="#2673ef", fg="White", command=lambda:controller.show_frame(NewUserPage)).pack(side=RIGHT)
		Button(top_nav, text="Login", width=15,bg="#2673ef", fg="White", command=lambda:controller.show_frame(LoginPage)).pack(side=RIGHT)
		top_nav.pack(side=TOP)

		label = Label(self, text="Superviser Registration", height=3,bg="#2673ef", fg="White").pack(side=TOP,fill=X)
		
		row1 = Frame(self)

		SUPERVISER_NAME = StringVar()
		Label(row1, text="Name", width=15).pack(side=LEFT)
		Entry(row1, textvariable=SUPERVISER_NAME, width=22).pack(side=LEFT)
		row1.pack()
		
		row2 = Frame(self)
		SUPERVISER_REGI = StringVar()
		Label(row2, text="UID", width=15).pack(side=LEFT)
		Entry(row2, textvariable=SUPERVISER_REGI, width=22).pack(side=LEFT)
		row2.pack()

		row3 = Frame(self)
		SUPERVISER_SPEC = StringVar()
		Label(row3, text="Specialization", width=15).pack(side=LEFT)
		Entry(row3, textvariable=SUPERVISER_SPEC, width=22).pack(side=LEFT)
		row3.pack()

		row4 = Frame(self)
		SUPERVISER_MOBI = StringVar()
		Label(row4, text="Mobile No", width=15).pack(side=LEFT)
		Entry(row4, textvariable=SUPERVISER_MOBI, width=22).pack(side=LEFT)
		row4.pack()

		row5 = Frame(self)
		SUPERVISER_MAIL = StringVar()
		Label(row5, text="Email", width=15).pack(side=LEFT)
		Entry(row5, textvariable=SUPERVISER_MAIL, width=22).pack(side=LEFT)
		row5.pack()
	
		row6 = Frame(self)
		Label(row6, text="", width=15).pack(side=LEFT)
		Button(row6, text="Register", width=20, bg="#2673ef", fg="White", command=superviser_reg).pack()
		row6.pack()
		
class NewUserPage(Frame):
	def __init__(self, parent, controller):
		Frame.__init__(self, parent)
		
		global STUDENT_NAME, STUDENT_REGI, STUDENT_SPEC, STUDENT_MOBI, STUDENT_MAIL

		top_nav = Frame(self,pady=30, bg="White")
		Button(top_nav, text="Info", width=15, bg="#2673ef", fg="White", command=lambda:controller.show_frame(InfoPage)).pack(side=RIGHT)
		Button(top_nav, text="Superviser", width=15, bg="#2673ef", fg="White",command=lambda:controller.show_frame(SuperviserPage)).pack(side=RIGHT)
		Button(top_nav, text="New User", width=15, command=lambda:controller.show_frame(StartPage)).pack(side=RIGHT)
		Button(top_nav, text="Login", width=15,bg="#2673ef", fg="White", command=lambda:controller.show_frame(LoginPage)).pack(side=RIGHT)
		top_nav.pack(side=TOP)

		label = Label(self, text="Student Registration", height=3,bg="#2673ef", fg="White").pack(side=TOP,fill=X)
		
		row1 = Frame(self)

		STUDENT_NAME = StringVar()
		Label(row1, text="Name", width=15).pack(side=LEFT)
		Entry(row1, textvariable=STUDENT_NAME, width=22).pack(side=LEFT)
		row1.pack()
		
		row2 = Frame(self)
		STUDENT_REGI = StringVar()
		Label(row2, text="Reg. No", width=15).pack(side=LEFT)
		Entry(row2, textvariable=STUDENT_REGI, width=22).pack(side=LEFT)
		row2.pack()

		row3 = Frame(self)
		STUDENT_SPEC = StringVar()
		Label(row3, text="Specialization", width=15).pack(side=LEFT)
		Entry(row3, textvariable=STUDENT_SPEC, width=22).pack(side=LEFT)
		row3.pack()

		row4 = Frame(self)
		STUDENT_MOBI = StringVar()
		Label(row4, text="Mobile No", width=15).pack(side=LEFT)
		Entry(row4, textvariable=STUDENT_MOBI, width=22).pack(side=LEFT)
		row4.pack()

		row5 = Frame(self)
		STUDENT_MAIL = StringVar()
		Label(row5, text="Email", width=15).pack(side=LEFT)
		Entry(row5, textvariable=STUDENT_MAIL, width=22).pack(side=LEFT)
		row5.pack()
	
		row6 = Frame(self)
		Label(row6, text="", width=15).pack(side=LEFT)
		Button(row6, text="Register", width=20, bg="#2673ef", fg="White", command=student_reg).pack()
		row6.pack()
		

class SuperviserPage(Frame):
	def __init__(self, parent, controller):
		Frame.__init__(self, parent)

		top_nav = Frame(self,pady=30, bg="White")
		Button(top_nav, text="Info", width=15, bg="#2673ef", fg="White", command=lambda:controller.show_frame(InfoPage)).pack(side=RIGHT)
		Button(top_nav, text="Superviser", width=15,command=lambda:controller.show_frame(StartPage)).pack(side=RIGHT)
		Button(top_nav, text="New User", width=15,bg="#2673ef", fg="White", command=lambda:controller.show_frame(NewUserPage)).pack(side=RIGHT)
		Button(top_nav, text="Login", width=15,bg="#2673ef", fg="White", command=lambda:controller.show_frame(LoginPage)).pack(side=RIGHT)
		top_nav.pack(side=TOP)

		Label(self, text="Superviser Area", height=3, bg="#2673ef", fg="White").pack(side=TOP,fill=X)
	
		row7 = Frame(self)
		Button(row7, text="Login", width=20, bg="#2673ef", fg="White",command=lambda:controller.show_frame(SuperviserLoginPage)).pack(side=LEFT, padx=20,pady=10)
		Button(row7, text="New User", width=20, bg="#2673ef", fg="White",command=lambda:controller.show_frame(SuperviserRegPage)).pack(side=LEFT, padx=20,pady=10)
		row7.pack()
		row8 = Frame(self)
		Button(row8, text="Open Hours", width=20, bg="#2673ef", fg="White",command=lambda:controller.show_frame(InfoPage)).pack(side=LEFT, padx=20,pady=10)
		Button(row8, text="Select Students", width=20, bg="#2673ef", fg="White").pack(side=LEFT, padx=20,pady=10)
		row8.pack()
			

class InfoPage(Frame):
	def __init__(self, parent, controller):
		Frame.__init__(self, parent)

		top_nav = Frame(self,pady=30, bg="White")
		Button(top_nav, text="Info", width=15, command=lambda:controller.show_frame(StartPage)).pack(side=RIGHT)
		Button(top_nav, text="Superviser", width=15,bg="#2673ef", fg="White",command=lambda:controller.show_frame(SuperviserPage)).pack(side=RIGHT)
		Button(top_nav, text="New User", width=15,bg="#2673ef", fg="White", command=lambda:controller.show_frame(NewUserPage)).pack(side=RIGHT)
		Button(top_nav, text="Login", width=15,bg="#2673ef", fg="White", command=lambda:controller.show_frame(LoginPage)).pack(side=RIGHT)
		top_nav.pack(side=TOP)

		Label(self, text="Information : Open Hours", height=3, bg="#2673ef", fg="White").pack(side=TOP,fill=X)
		

class MainMenu:
	def __init__(self, master):
		menubar = Menu(master)
		filemenu = Menu(menubar, tearoff=0)
		filemenu.add_command(label="Exit", command=master.quit)
		menubar.add_cascade(label="File", menu=filemenu)
		master.config(menu=menubar)


app = App()
app.title("Superviser Allocation Portal")
# root.geometry() will return '1x1+0+0' here
app.update()
# now app.geometry() returns valid size/placement
app.minsize(app.winfo_width(), 400)
app.mainloop()