from tkinter import *
import math
root = Tk()
root.geometry("700x400")
root.resizable(0, 0)
root.config(bg="#103030")
root.title("Ângulo de Brewster")
titulo = Label(text="Ângulo de Brewster",
               font=("Arial", "28", "bold"), bg="#103030", fg="#49e3e3")
titulo.place(relx=0.25, rely=0.05)

texto_sub1 = Label(text="índice de refração do primeiro meio:",
                   font=("Arial", "18", "bold"), bg="#103030", fg="#49e3e3")
texto_sub1.place(relx=0.05, rely=0.32)

texto_sub2 = Label(text="índice de refração do segundo meio:",
                   font=("Arial", "18", "bold"), bg="#103030", fg="#49e3e3")
texto_sub2.place(relx=0.05, rely=0.52)


n1 = StringVar()
n1_entrada = Entry(textvariable=n1,
                      font=("Arial", "12", "bold"),
                      bg="white", fg="blue", justify='center')
n1_entrada.place(relx=0.67, rely=0.32, relwidth=0.23)
n1_entrada.focus()

n2 = StringVar()
n2_entrada = Entry(textvariable=n2,
                      font=("Arial", "12", "bold"),
                      bg="white", fg="blue", justify='center')
n2_entrada.place(relx=0.67, rely=0.53, relwidth=0.23)

def limpar():
    n1_entrada.delete(0, END)
    n2_entrada.delete(0, END)
    resultado_texto.config(text="")
def app():
    N1 =float(n1.get())
    N2 =float( n2.get())
    angulo_rad = math.atan(N2 / N1)
    angulo_graus = math.degrees(angulo_rad)
    mensagem =f"O Ângulo de Brewster é: {angulo_graus:.2f} graus."
    resultado_texto.config(text=mensagem)
but1 = Button(text="Calcular", bd=2, bg='#107db2', fg='white',
              font=('verdana', 12, 'bold'), command=app)
but1.place(relx=0.1, rely=0.65, relwidth=0.25, relheight=0.1)

but_limpar = Button(text="Limpar", bd=2, bg='#107db2', fg='white',
                    font=('verdana', 12, 'bold'), command=limpar)
but_limpar.place(relx=0.4, rely=0.65, relwidth=0.25, relheight=0.1)

but_sair = Button(text="Sair", bd=2, bg='#107db2', fg='white',
                  font=('verdana', 12, 'bold'), command=root.destroy)
but_sair.place(relx=0.7, rely=0.65, relwidth=0.25, relheight=0.1)
resultado_texto = Label(text="",
                        font=("Arial", 12, "bold"), bg="#cfe2f3")
resultado_texto.place(relx=0.05, rely=0.8, relwidth=0.9, relheight=0.15)
root.mainloop()