main.py

from tkinter import *
def doNothing():
    print("Ok, I wont")

#---------------------------Initializing----------------------------------------
root =Tk()
root.configure(background='#303030')
def clear():
    list = root.grid_slaves()
    print(list)
    for l in list:
        l.destroy()

#-----setting screen size by dynamically getting height and width of screen-----
screen_width = root.winfo_screenwidth()
screen_height = root.winfo_screenheight()
root.geometry(str(screen_width)+"x"+str(screen_height))
root.config(background='#2b2b2b')


def home():
    labelfont = ('helvetica', 100)

    label_one = Label(root, text = 'FinanCo')
    label_one.config(fg='white',bg="#2b2b2b")  
    label_one.config(font=labelfont)        
    label_one.pack()





#------------------------adding menu bar to the window-------------------------
def menucall():
    menu = Menu(root)
    root.config(menu=menu)
    subMenu = Menu(menu)
    menu.add_cascade(label="File", menu=subMenu)
    subMenu.add_command(label="New Loan",command=newLoan)
    subMenu.add_command(label="New Invoice",command=doNothing)
    subMenu.add_command(label="Settle Loan",command=doNothing)
    subMenu.add_command(label="New Broker",command=doNothing)
    subMenu.add_command(label="Create Chart",command=doNothing)
    subMenu.add_separator()
    subMenu.add_command(label="Exit", command=home)

    editMenu = Menu(menu)
    menu.add_cascade(label="Edit", menu=editMenu)
    editMenu.add_command(label="Chart",command=doNothing)
    editMenu.add_command(label="loan-amount",command=doNothing)
    editMenu.add_command(label="Receipts",command=doNothing)
    editMenu.add_command(label="Broker File",command=doNothing)
    editMenu.add_command(label="Cash with broker",command=doNothing)
    editMenu.add_separator()
    editMenu.add_command(label="Exit", command=doNothing)

    viewMenu = Menu(menu)
    menu.add_cascade(label="View", menu=viewMenu)
    viewMenu.add_command(label="Months Loan",command=doNothing)
    viewMenu.add_command(label="EMI Paid",command=doNothing)
    viewMenu.add_command(label="Dues-Pending",command=doNothing)
    viewMenu.add_command(label="Upcoming Dues",command=doNothing)
    viewMenu.add_command(label="Broker in hand cash",command=doNothing)
    viewMenu.add_command(label="Vehicles List",command=doNothing)
    viewMenu.add_command(label="Rc. No",command=doNothing)
    viewMenu.add_command(label="All Customers",command=doNothing)
    viewMenu.add_separator()
    viewMenu.add_command(label="Exit", command=doNothing)

    reportMenu = Menu(menu)
    menu.add_cascade(label="Reports", menu=reportMenu)
    reportMenu.add_command(label="Monthly Loans",command=doNothing)
    reportMenu.add_command(label="Broker Wise",command=doNothing)
    reportMenu.add_command(label="Profit of month",command=doNothing)
    reportMenu.add_command(label="Bulk Report",command=doNothing)
    reportMenu.add_separator()
    reportMenu.add_command(label="Exit", command=doNothing)

    settingMenu = Menu(menu)
    menu.add_cascade(label="Settings", menu=settingMenu)
    settingMenu.add_command(label="Change Username",command=doNothing)
    settingMenu.add_command(label="Change Password",command=doNothing)
    settingMenu.add_separator()
    settingMenu.add_command(label="Exit", command=doNothing)

    helpMenu = Menu(menu)
    menu.add_cascade(label="Help", menu=helpMenu)
    helpMenu.add_command(label="About",command=doNothing)
    helpMenu.add_command(label="Features",command=doNothing)
    helpMenu.add_command(label="Licence",command=doNothing)
    helpMenu.add_command(label="Terms and Conditions",command=doNothing)
    helpMenu.add_command(label="Donate",command=doNothing)
    helpMenu.add_command(label="Contribute",command=doNothing)
    helpMenu.add_command(label="Star",command=doNothing)
    helpMenu.add_separator()
    helpMenu.add_command(label="Exit", command=doNothing)

#-----------------------------------File---------------------------------------
#---------------------------------New Loan-------------------------------------

def newLoan():
    labelfont = ('helvetica', 100)
    label_one = Label(root, text = 'FinanCo New Loan').grid(row=0)
    label_one.config(fg='white',bg="#2b2b2b")  
    label_one.config(font=labelfont)        
    label_one.pack()
    
#---------------------------Main--------------------------------
menucall()



root.mainloop()