Python programming

PDF_CODE

HIT137 Software Now

Week 10

from tkinter import *

root = Tk() # creates a blank window

theLabel = Label(root, text="Our first GUI \n Developed by Tkinter")

theLabel.pack() # basically places this widget inside the window

root.mainloop() # keeps the window open, the close button breaks the loop

from tkinter import *

root = Tk()

# Frame is a rectangular area that can contain other widgets

topFrame = Frame(root)

topFrame.pack()

bottomFrame = Frame(root)

bottomFrame.pack(side=BOTTOM)

button1 = Button(topFrame, text="Button 1", fg="red")

button2 = Button(topFrame, text="Button 2", fg="blue")

button3 = Button(topFrame, text="Button 3", fg="green")

button4 = Button(bottomFrame, text="Button 4", fg="purple")

# These buttons will be on top

button1.pack(side=LEFT) # place as far left as possible

button2.pack(side=LEFT)

button3.pack(side=LEFT)

# Button 4 is on the bottom

button4.pack(side=BOTTOM)

root.mainloop()

from tkinter import *

root = Tk()

one = Label(root, text="One", bg="red", fg="white")

one.pack()

two = Label(root, text="Two", bg="green", fg="black")

two.pack(fill=X) # fill=X - makes the widget as wide as the parent

three = Label(root, text="Three", bg="blue", fg="white")

three.pack(side=LEFT, fill=Y)

root.mainloop()

from tkinter import *

root = Tk()

label_1 = Label(root, text="Name")

label_2 = Label(root, text="Password")

entry_1 = Entry(root)

entry_2 = Entry(root)

# widgets centered by default, sticky option to change

label_1.grid(row=0, sticky=E)

label_2.grid(row=1, sticky=E)

entry_1.grid(row=0, column=1)

entry_2.grid(row=1, column=1)

# widgets can take up more than one cell with columnspan and rowspan

c = Checkbutton(root, text="Keep me logged in")

c.grid(columnspan=2)

root.mainloop()

from tkinter import *

root = Tk()

def printName(event):

print("Programming is fun")

button_1 = Button(root, text="Print Message")

# <Button-1> is an event that means "clicked left mouse button"

button_1.bind("<Button-1>", printName)

button_1.pack()

root.mainloop()

from tkinter import *

root = Tk()

def leftClick(event):

print("Left")

def middleClick(event):

print("Middle")

def rightClick(event):

print("Right")

frame = Frame(root, width=300, height=200)

# Event is something the user does to the widget, function that gets called

frame.bind("<Button-1>", leftClick)

frame.bind("<Button-2>", middleClick)

frame.bind("<Button-3>", rightClick)

frame.pack()

root.mainloop()

from tkinter import *

class BuckysButtons:

def __init__(self, master):

frame = Frame(master)

frame.pack()

self.printButton = Button(frame, text="Print Message",

command=self.printMessage)

self.printButton.pack(side=LEFT)

self.quitButton = Button(frame, text="Quit", command=frame.quit)

self.quitButton.pack(side=LEFT)

def printMessage(self):

print("Wow, this actually worked!")

root = Tk()

b = BuckysButtons(root)

root.mainloop()

from tkinter import *

def doNothing():

print("Do nothing...")

root = Tk()

menu = Menu(root)

root.config(menu=menu)

subMenu = Menu(menu)

menu.add_cascade(label="File", menu=subMenu)

subMenu.add_command(label="New Project", command=doNothing)

subMenu.add_command(label="New...", command=doNothing)

subMenu.add_separator()

subMenu.add_command(label="Exit", command=doNothing)

editMenu = Menu(menu)

menu.add_cascade(label="Edit", menu=editMenu)

editMenu.add_command(label="Redo", command=doNothing)

root.mainloop()

from tkinter import *

def doNothing():

print("Do nothing")

root = Tk()

# ***** Main Menu *****

menu = Menu(root)

root.config(menu=menu)

subMenu = Menu(menu)

menu.add_cascade(label="File", menu=subMenu)

subMenu.add_command(label="New Project", command=doNothing)

subMenu.add_command(label="New...", command=doNothing)

subMenu.add_separator()

subMenu.add_command(label="Exit", command=doNothing)

editMenu = Menu(menu)

menu.add_cascade(label="Edit", menu=editMenu)

editMenu.add_command(label="Redo", command=doNothing)

# ***** The Toolbar *****

toolbar = Frame(root, bg="blue")

insertButt = Button(toolbar, text="Insert Image", command=doNothing)

insertButt.pack(side=LEFT, padx=2, pady=2)

printButt = Button(toolbar, text="Print", command=doNothing)

printButt.pack(side=LEFT, padx=2, pady=2)

toolbar.pack(side=TOP, fill=X)

root.mainloop()

from tkinter import *

def doNothing():

print("Do nothing")

root = Tk()

# ***** Main Menu *****

menu = Menu(root)

root.config(menu=menu)

subMenu = Menu(menu)

menu.add_cascade(label="File", menu=subMenu)

subMenu.add_command(label="New Project", command=doNothing)

subMenu.add_command(label="New...", command=doNothing)

subMenu.add_separator()

subMenu.add_command(label="Exit", command=doNothing)

editMenu = Menu(menu)

menu.add_cascade(label="Edit", menu=editMenu)

editMenu.add_command(label="Redo", command=doNothing)

# ***** The Toolbar *****

toolbar = Frame(root, bg="blue")

insertButt = Button(toolbar, text="Insert Image", command=doNothing)

insertButt.pack(side=LEFT, padx=2, pady=2)

printButt = Button(toolbar, text="Print", command=doNothing)

printButt.pack(side=LEFT, padx=2, pady=2)

toolbar.pack(side=TOP, fill=X)

# ***** Status Bar *****

status = Label(root, text="Preparing to do nothing...", bd=10, relief=GROOVE,

anchor=W)

status.pack(side=BOTTOM, fill=X)

from tkinter import *

import tkinter.messagebox

root = Tk()

tkinter.messagebox.showinfo('Window Title', 'Subject Code')

answer = tkinter.messagebox.askquestion('Question 1', 'Do you want to display

your subject code')

if answer == 'yes':

print("HIT 137")

root.mainloop()

Run it and see the output

from tkinter import *

root = Tk()

photo = PhotoImage(file="test.png")

label = Label(root, image=photo)

label.pack()

root.mainloop()