# Python Version: 3 or newer
# people using python 2,please replace tkinter with Tkinter
# Author: Karim Khan (k4karim27@gmail.com)
from tkinter import *
from tkinter import ttk
def calculate1(*args):
try:
value1 = float(width.get())
value2 = float(lenght.get())
area.set( value1 * value2 )
except ValueError:
pass
def calculate2(*args):
try:
value1 = float(width.get())
value2 = float(lenght.get())
area.set( 0.5*value1 * value2 )
except ValueError:
pass
def calculate3(*args):
try:
value3 = float(radius.get())
area.set( 3.14* value3 * value3 )
except ValueError:
pass
def reset():
width_entry.delete(0, END)
lenght_entry.delete(0, END)
radius_entry.delete(0, END)
root = Tk()
root.title("Area Calculator")
root.geometry("290x120")
mainframe = ttk.Frame(root, padding="5 5 15 15")
mainframe.grid(column=0, row=0, sticky=(N, W, E, S))
mainframe.columnconfigure(0, weight=1)
mainframe.rowconfigure(0, weight=1)
width = StringVar()
radius = StringVar()
lenght = StringVar()
area = StringVar()
width_entry = ttk.Entry(mainframe, width=5, textvariable=width)
width_entry.grid(column=1, row=1, sticky=(E))
lenght_entry = ttk.Entry(mainframe, width=5, textvariable=lenght)
lenght_entry.grid(column=2, row=1, sticky=(E))
radius_entry = ttk.Entry(mainframe, width=5, textvariable=radius)
radius_entry.grid(column=3, row=1, sticky=(E))
ttk.Label(mainframe,background="white", textvariable=area).grid(column=2, row=2, sticky=(W, E))
ttk.Button(mainframe, text="Circle", command=calculate3).grid(column=3, row=3, sticky=W)
ttk.Button(mainframe, text="Triangle", command=calculate2).grid(column=1, row=3, sticky=E)
ttk.Button(mainframe, text="Rectangle", command=calculate1).grid(column=2, row=3)
ttk.Button(mainframe, text="Reset", command=reset).grid(column=3, row=2, sticky=E)
ttk.Label(mainframe, text="Width").grid(column=1, row=1, sticky=W)
ttk.Label(mainframe, text="Lenght").grid(column=2, row=1, sticky=W)
ttk.Label(mainframe, text="Radius").grid(column=3, row=1, sticky=W)
ttk.Label(mainframe, text="Area: ").grid(column=1, row=2, sticky=W)
for child in mainframe.winfo_children(): child.grid_configure(padx=5, pady=5)
width_entry.focus()
lenght_entry.focus()
root.bind('<Return>', calculate1)
root.bind('<Return>', calculate2)
root.mainloop()
Diff to Previous Revision
--- revision 1 2014-07-02 16:58:06
+++ revision 2 2014-07-03 09:16:14
@@ -6,13 +6,7 @@
from tkinter import *
from tkinter import ttk
-def calculate3(*args):
- try:
- value3 = float(radius.get())
-
- area.set( 3.14* value3 * value3 )
- except ValueError:
- pass
+
def calculate1(*args):
try:
value1 = float(width.get())
@@ -27,12 +21,18 @@
area.set( 0.5*value1 * value2 )
except ValueError:
pass
-def close():
- root.destroy()
+def calculate3(*args):
+ try:
+ value3 = float(radius.get())
+
+ area.set( 3.14* value3 * value3 )
+ except ValueError:
+ pass
def reset():
width_entry.delete(0, END)
lenght_entry.delete(0, END)
radius_entry.delete(0, END)
+
root = Tk()
root.title("Area Calculator")
root.geometry("290x120")
