# -*- coding: utf-8 -*-
"""
Created on Mon Oct 22 19:26:07 2018

@author: hnambur
"""

from tkinter import Label,Entry,Button,Tk

class Converter:
    def __init__(self, master):
        self.master = master
        master.title("A simple GUI for type conversions")

    def add_gui_elements(self):

        # Adding the header
        self.heading = Label(self.master,text="This app converts the temperature in Celcius to Kelvin")
        self.heading.grid(column=0,row=0,columnspan=2)
        # Adding the labels
        self.label = Label(self.master, text="Enter temperature in Celcius")
        self.label.grid(column=0,row=1)
        # Add the input box for taking the user input
        self.Tc_input = Entry(self.master)
        self.Tc_input.grid(column=1,row=1)
        # Add the label
        self.label2 = Label(self.master, text="Temperature in Kelvin is :")
        self.label2.grid(column=0,row=2)
        # Add the label to display the new value
        self.label3 = Label(self.master)
        self.label3.grid(column=1,row=2)
        # Button to convert the value
        self.convert_button = Button(self.master, text="Convert", command=self.convert)
        self.convert_button.grid(column=0,row=3,columnspan=2)

    def convert(self):
        # Utility function to convert the value
        Tc = float(self.Tc_input.get())
        T_K = Tc + 273.15
        # Put the new value back in the label
        self.label3.configure(text=str(T_K))

if __name__ == "__main__":
    root = Tk() # Create the main window
    my_gui = Converter(root) # Create the converter Class
    my_gui.add_gui_elements() # Add the UI elements to the window
    root.mainloop() # Launch the UI thread