from tkinter import *


class Converter:
    """
    Temperature conversion tool (°C to °F or °F to °C)
    """

    def __init__(self):
        """
       Temperature converter GUI
       """

        self.all_calculations_list = []

        self.temp_frame = Frame(padx=10, pady=10)
        self.temp_frame.grid()

        self.tp_help_button = Button(self.temp_frame,
                                     text="Help / Info",
                                     bg="#CC6600",
                                     fg="#FFFFFF",
                                     font=("Arial", "14", "bold"), width=12,
                                     command=self.to_help)
        self.tp_help_button.grid(row=1, padx=5, pady=5)




    def to_help(self):
        DisplayHelp()


class DisplayHelp:

    def __init__(self):

        # setup dialogue box and background colour
        background = "#ffe6cc"
        self.help_box = Toplevel()

        self.help_frame = Frame(self.help_box, width=300,
                                height=200)
        self.help_frame.grid()

        self.help_heading_label = Label(self.help_frame,
                                        text="help / Info",
                                        font=("Arial", "14", "bold"))
        self.help_heading_label.grid(row=0)

        self.help_text_label = Label(self.help_frame,
                                     text="help text goes here", wraplength=350,
                                     justify="left",
                                     fg="#FFFFFF")
        self.help_text_label.grid(row=1, padx=10, pady=10)


        # List and loop to set background colour on
        # everything except the buttons.
        recolour_list = [self.help_frame, self.help_heading_label,
                         self.help_text_label]

        for item in recolour_list:
            item.config(bg=background)

# main routine
if __name__ == "__main__":
    root = Tk()
    root.title("Temperature Convertor")
    Converter()
    root.mainloop()