from tkinter import *
root = Tk()
root.geometry("400x400")
root.resizable(0, 0)
root.config(bg="#103030")
root.title("Diferença Quadrados")
def centralizar_janela(root):
    root.update_idletasks()
    largura = root.winfo_width()
    altura = root.winfo_height()
    x = (root.winfo_screenwidth() // 2) - (largura // 2)
    y = (root.winfo_screenheight() // 2) - (altura // 2)
    root.geometry(f"{largura}x{altura}+{x}+{y}")

centralizar_janela(root)

titulo = Label(text="Diferença Quadrados",
               font=("Arial", "27", "bold"), bg="#103030", fg="#49e3e3")
titulo.place(relx=0.05, rely=0.05)

texto_sub1 = Label(text="A: ",
                   font=("Arial", "18", "bold"), bg="#103030", fg="#49e3e3")
texto_sub1.place(relx=0.3, rely=0.25)

texto_sub2 = Label(text="B: ",
                   font=("Arial", "18", "bold"), bg="#103030", fg="#49e3e3")
texto_sub2.place(relx=0.3, rely=0.45)

a = StringVar()
a_entrada = Entry(textvariable=a,
                  font=("Arial", "12", "bold"),
                  bg="white", fg="blue", justify='center')
a_entrada.place(relx=0.5, rely=0.25, relwidth=0.35)
a_entrada.focus()

b = StringVar()
b_entrada = Entry(textvariable=b,
                  font=("Arial", "12", "bold"),
                  bg="white", fg="blue", justify='center')
b_entrada.place(relx=0.5, rely=0.45, relwidth=0.35)

def limpar():
    b_entrada.delete(0, END)
    a_entrada.delete(0, END)
    resultado_texto.config(text="")

def app():
    try:
        A = float(a.get())
        B = float(b.get())
        resultado = (A + B) * (A - B)
        mensagem = f"Diferença de quadrados entre {A} e {B}\nvia fatoração é: {resultado}"
        resultado_texto.config(text=mensagem, bg="#cfe2f3", fg="black")
    except ValueError:
        resultado_texto.config(text="Por favor, digite número válido!!", bg="red", fg="white")

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)

# Vincular tecla Enter
root.bind('<Return>', lambda event: app())

root.mainloop()