from tkinter import *
root =Tk()
root.geometry("500x400")
root.resizable(0, 0)
root.config(bg="#0e629e")
root.title("Índice de Preços ao Consumidor (IPC) ")
titulo = Label(text="Índice de Preços ao Consumidor (IPC)",
               font=("Arial", "19", "bold"),bg="#0e629e",fg="#d9ead3")
titulo.place(relx=0.05, rely=0.05)
texto_sub1  = Label(text="Custo da cesta base:",
                    font=("Arial", "15", "bold"),bg="#0e629e",fg="#d9ead3")
texto_sub1.place(relx=0.15, rely=0.25)
texto_sub2  = Label(text="Custo da cesta de bens e serviços no ano actual:",
                    font=("Arial", "10", "bold"),bg="#0e629e",fg="#d9ead3")
texto_sub2.place(relx=0.05, rely=0.45)


Custo_da_cesta_actual = DoubleVar()
Custo_da_cesta_actual_entrada = Entry(textvariable=Custo_da_cesta_actual,
                             font=("Arial", "12", "bold"),
                             bg="white", fg="blue", justify='center')
Custo_da_cesta_actual_entrada.place(relx=0.68, rely=0.45, relwidth=0.3)

Custo_cesta_base = DoubleVar()
Custo_cesta_base_entrada = Entry(textvariable=Custo_cesta_base,
                             font=("Arial", "12", "bold"),
                             bg="white", fg="blue", justify='center')
Custo_cesta_base_entrada.place(relx=0.57, rely=0.25, relwidth=0.35)

def limpar():
    Custo_cesta_base_entrada.delete(0, END)
    Custo_da_cesta_actual_entrada.delete(0, END)
    resultado.set("")
def app():
   custo_actual = Custo_da_cesta_actual.get()
   custo_base=Custo_cesta_base.get()
   IPC = (custo_actual / custo_base)*100
   mensagem = f"O IPC é igual a {round(IPC,2)}."
   resultado.set(mensagem)

but1 = Button(text="Calcular", bd=2, bg='#107db2', fg='white',
              font=('verdana', 12, 'bold'), command=app)
but1.place(relx=0.05, rely=0.6, 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=0.35, rely=0.6, 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=0.65, rely=0.6, relwidth=0.25, relheight=0.1)

resultado = StringVar()
resultado_texto = Label(textvariable=resultado,
                           font=("Arial", 12, "bold"), bg="#cfe2f3")
resultado_texto.place(relx=0.05, rely=0.75, relwidth=0.9,relheight=0.2)
root.mainloop()