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Updated Calculator.py #7

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232 changes: 116 additions & 116 deletions calculator.py
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Original file line number Diff line number Diff line change
@@ -1,121 +1,121 @@
from tkinter import *

root = Tk()
root.title("Simple Calculator")

e = Entry(root, width=35, borderwidth=5)
e.grid(row=0, column=0, columnspan=3, padx=10, pady=10)

#e.insert(0, "")

def button_click(number):
#e.delete(0, END)
current = e.get()
e.delete(0, END)
e.insert(0, str(current) + str(number))

def button_clear():
e.delete(0, END)

def button_add():
first_number = e.get()
global f_num
global math
math = "addition"
f_num = int(first_number)
e.delete(0, END)

def button_equal():
second_number = e.get()
e.delete(0, END)

if math == "addition":
e.insert(0, f_num + int(second_number))

if math == "subtraction":
e.insert(0, f_num - int(second_number))

if math == "multiplication":
e.insert(0, f_num * int(second_number))

if math == "division":
e.insert(0, f_num / int(second_number))



def button_subtract():
first_number = e.get()
global f_num
global math
math = "subtraction"
f_num = int(first_number)
e.delete(0, END)

def button_multiply():
first_number = e.get()
global f_num
global math
math = "multiplication"
f_num = int(first_number)
e.delete(0, END)

def button_divide():
first_number = e.get()
global f_num
global math
math = "division"
f_num = int(first_number)
e.delete(0, END)


# Define Buttons

button_1 = Button(root, text="1", padx=40, pady=20, command=lambda: button_click(1))
button_2 = Button(root, text="2", padx=40, pady=20, command=lambda: button_click(2))
button_3 = Button(root, text="3", padx=40, pady=20, command=lambda: button_click(3))
button_4 = Button(root, text="4", padx=40, pady=20, command=lambda: button_click(4))
button_5 = Button(root, text="5", padx=40, pady=20, command=lambda: button_click(5))
button_6 = Button(root, text="6", padx=40, pady=20, command=lambda: button_click(6))
button_7 = Button(root, text="7", padx=40, pady=20, command=lambda: button_click(7))
button_8 = Button(root, text="8", padx=40, pady=20, command=lambda: button_click(8))
button_9 = Button(root, text="9", padx=40, pady=20, command=lambda: button_click(9))
button_0 = Button(root, text="0", padx=40, pady=20, command=lambda: button_click(0))
button_add = Button(root, text="+", padx=39, pady=20, command=button_add)
button_equal = Button(root, text="=", padx=91, pady=20, command=button_equal)
button_clear = Button(root, text="Clear", padx=79, pady=20, command=button_clear)

button_subtract = Button(root, text="-", padx=41, pady=20, command=button_subtract)
button_multiply = Button(root, text="*", padx=40, pady=20, command=button_multiply)
button_divide = Button(root, text="/", padx=41, pady=20, command=button_divide)

# Put the buttons on the screen

button_1.grid(row=3, column=0)
button_2.grid(row=3, column=1)
button_3.grid(row=3, column=2)

button_4.grid(row=2, column=0)
button_5.grid(row=2, column=1)
button_6.grid(row=2, column=2)

button_7.grid(row=1, column=0)
button_8.grid(row=1, column=1)
button_9.grid(row=1, column=2)

button_0.grid(row=4, column=0)
button_clear.grid(row=4, column=1, columnspan=2)
button_add.grid(row=5, column=0)
button_equal.grid(row=5, column=1, columnspan=2)

button_subtract.grid(row=6, column=0)
button_multiply.grid(row=6, column=1)
button_divide.grid(row=6, column=2)






root.title("Calculator")

#font size
large_font = ('Verdana',17)
small_font = ('Verdana',12)

#functions for buttons
def num_click(number):
current= ent.get()
ent.delete(0,END)
ent.insert(0, str(current) + str(number))

def add_click():
global num1 #num1 is set to global so it can be used outside function
num1= ent.get() #num1 gets the number in the entry field before the add button is clicked
global fun #fun can be used globally
fun="add" #function of add
ent.delete(0, END)

def sub_click():
global num1
num1 = ent.get()
global fun
fun="sub"
ent.delete(0, END)

def mul_click():
global num1
num1 = ent.get()
global fun
fun="mul"
ent.delete(0, END)

def div_click():
global num1
num1 = ent.get()
global fun
fun="div"
ent.delete(0, END)

def equal_click():
num2= ent.get() #gets the number in the entry tab present before clicking equal
ent.delete(0, END) #delete whats on the screen when equal pressed
if fun=="add":
ent.insert(0,eval(num1) + eval(num2))
elif fun == "sub":
ent.insert(0, eval(num1) - eval(num2))
elif fun == "mul":
ent.insert(0, eval(num1) * eval(num2))
elif fun == "div":
ent.insert(0, eval(num1) / eval(num2))

def clear_click():
ent.delete(0, END) #deletes everything in the entry field



# entry field row 0
ent = Entry(root, width=20,borderwidth=5,font=large_font)
ent.grid(row=0, column=0, columnspan=4, padx=5, pady=5)

# buttons
#row 1
but_7 = Button(root, text="7", padx=30, pady=30,font=small_font, command=lambda: num_click(7))
but_8 = Button(root, text="8", padx=30, pady=30,font=small_font, command=lambda: num_click(8))
but_9 = Button(root, text="9", padx=30, pady=30,font=small_font, command=lambda: num_click(9))
but_clear = Button(root, text="C", padx=31, pady=30,font=small_font, command=clear_click)

#row 2
but_4 = Button(root, text="4", padx=30, pady=30,font=small_font, command=lambda: num_click(4))
but_5 = Button(root, text="5", padx=30, pady=30,font=small_font, command=lambda: num_click(5))
but_6 = Button(root, text="6", padx=30, pady=30,font=small_font, command=lambda: num_click(6))
but_add = Button(root, text="+", padx=30, pady=30,font=small_font,command= add_click)

#row 3
but_1 = Button(root, text="1", padx=30, pady=30,font=small_font, command=lambda: num_click(1))
but_2 = Button(root, text="2", padx=30, pady=30,font=small_font, command=lambda: num_click(2))
but_3 = Button(root, text="3", padx=30, pady=30,font=small_font, command=lambda: num_click(3))
but_sub = Button(root, text="-", padx=33, pady=30,font=small_font, command=sub_click)

#row 4
but_period = Button(root, text=".", padx=31, pady=30,font=small_font, command=lambda: num_click("."))
but_0 = Button(root, text="0", padx=30, pady=30,font=small_font, command=lambda: num_click(0))
but_mul = Button(root, text="x", padx=32, pady=30,font=small_font, command=mul_click)
but_div= Button(root, text="÷", padx=28, pady=30, font=small_font,command=div_click)

#row 5
but_equal = Button(root, text="=", padx=150, pady=12,font=large_font, command=equal_click)

# button placement
#row 1
but_7.grid(row=1, column=0)
but_8.grid(row=1, column=1)
but_9.grid(row=1, column=2)
but_clear.grid(row=1, column=3)

#row 2
but_4.grid(row=2, column=0)
but_5.grid(row=2, column=1)
but_6.grid(row=2, column=2)
but_add.grid(row=2, column=3)

#row 3
but_1.grid(row=3, column=0)
but_2.grid(row=3, column=1)
but_3.grid(row=3, column=2)
but_sub.grid(row=3, column=3)

#row 4
but_period.grid(row=4, column=0)
but_0.grid(row=4, column=1)
but_mul.grid(row=4, column=3)
but_div.grid(row=4, column=2)

#row 5
but_equal.grid(row=5, column=0, columnspan=4)

root.mainloop()