GUI interfaces with TKinter

In [1]:

import tkinter as tk

In [2]:

# Basic loop

# root object
root = tk.Tk()

# simple text
label1 = tk.Label(root, text='hello TK')

# pack
label1.pack()

# main loopof a GUI Program
root.mainloop()

In [3]:

# grid

root = tk.Tk()
label1 = tk.Label(root, text='hello TK')
label2 = tk.Label(root, text='My name is Fernando')

label1.grid(row=0, column = 0)
label2.grid(row=1, column = 2)

root.mainloop()

In [4]:

# Button

# Button action : Function
def clickButton():
    my_label = tk.Label(root, text='I clicked a Button')
    my_label.pack()

# main window
root = tk.Tk()

#creating widgets
myButton = tk.Button(root, text='Click me!',padx=10, pady =2, command = clickButton).pack()

#main loop
root.mainloop()

In [5]:

# text Entry Widget

# Button action : Function
def clickButton():
    my_label = tk.Label(root, text=e.get(),fg ='teal')
    my_label.pack()

# main window
root = tk.Tk()

e = tk.Entry(root, width=50, bg='white',fg='black')
e.insert(0, 'Enter your name')
e.pack()

#creating widgets
myButton = tk.Button(root, text='Click me!',padx=10, pady =2, command = clickButton).pack()

#main loop
root.mainloop()

In [6]:

# Calculator

# main window
root = tk.Tk()
root.title('Simple Calculator')



# Button action : Function
def type_number(number):
    e.insert(tk.END,  number)


# Button action : Function
def clear_display():
    e.delete(0, tk.END)

def calc_func():
    global num_aux
    result = num_aux + int(e.get())
    num_aux = None
    e.delete(0,tk.END)
    e.insert(0,result)

def button_plus():
    global num_aux
    num_aux = int(e.get())
    e.delete(0, tk.END)

# Entry 
e = tk.Entry(root, width=35, borderwidth =5)

e.grid(row = 0, column=0, columnspan =3, padx =5, pady=2 )

button_1  = tk.Button(root, text = '1', padx=40, pady=20, command=lambda : type_number(1))
button_2  = tk.Button(root, text = '2', padx=40, pady=20, command=lambda : type_number(2))
button_3  = tk.Button(root, text = '3', padx=40, pady=20, command=lambda : type_number(3))
button_4  = tk.Button(root, text = '4', padx=40, pady=20, command=lambda : type_number(4))
button_5  = tk.Button(root, text = '5', padx=40, pady=20, command=lambda : type_number(5))
button_6  = tk.Button(root, text = '6', padx=40, pady=20, command=lambda : type_number(6))
button_7  = tk.Button(root, text = '7', padx=40, pady=20, command=lambda : type_number(7))
button_8  = tk.Button(root, text = '8', padx=40, pady=20, command=lambda : type_number(8))
button_9  = tk.Button(root, text = '9', padx=40, pady=20, command=lambda : type_number(9))
button_0  = tk.Button(root, text = '0', padx=40, pady=20, command=lambda : type_number(0))

button_add  = tk.Button(root, text = '+', padx=39, pady=20, command= button_plus)
button_clear  = tk.Button(root, text = 'clear', padx=78, pady=20, command=clear_display)
button_eq  = tk.Button(root, text = '=', padx=87, pady=20, command= calc_func)


button_1.grid(row = 1,  column= 0)
button_2.grid(row = 1,  column= 1)
button_3.grid(row = 1,  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 = 3,  column= 0)
button_8.grid(row = 3,  column= 1)
button_9.grid(row = 3,  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_eq.grid(row = 5,  column= 1, columnspan=2)

#main loop
root.mainloop()

In [30]:

# icon and images
import tkinter as tk
from PIL import ImageTk, Image

root = tk.Tk()
root.title('Image viewer')

root.iconbitmap('./img/rulers.ico')

test_img = Image.open("./img/eat.jpeg")

img_size = test_img.size

n=4

test_img = test_img.resize((img_size[0]//n,img_size[1]//n ))

test_img = ImageTk.PhotoImage(test_img)

label1 = tk.Label( image=test_img)
label1.pack()

button_exit = tk.Button(root, text='Quit', command=root.destroy)
button_exit.pack()


root.mainloop()

In [28]:

import tkinter as tk
from tkinter import ttk

root = tk.Tk()
root.geometry("500x500")
root.resizable(False,False)

wrap_1 = tk.LabelFrame(root)
wrap_2 = tk.LabelFrame(root)

canv_1 = tk.Canvas(wrap_1)
canv_1.pack(side=tk.LEFT)

yscroll_root = ttk.Scrollbar(root, orient='vertical', command= canv_1.yview)
yscroll_root.pack(side=tk.RIGHT, fill='y')

yscroll = ttk.Scrollbar(wrap_1, orient='vertical', command= canv_1.yview)
yscroll.pack(side=tk.RIGHT, fill='y')

wrap_1.pack(fill='both',expand='yes' ,padx=10, pady=10)
wrap_2.pack(fill='both',expand='yes' ,padx=10, pady=10)

for i in range(20):
    Button_1 = tk.Button(canv_1, text=i ,padx=50, pady=30)
    Button_1.pack()

root.mainloop()