Hey guys, I'm just getting the hang of Python and Tkinter and I could
use some help. I wrote most of the gui for my calculator program,
well I haven't gotten around to putting in the
plus/minus/divide/mulitply yet but I'll save that for later. Right
now I want the buttons to display the number in the entry field. How
can I pass the values into the entry field as they are being clicked?
Oh and here's my biggest question. Right now I have it set so that if
you press 3 and 4 it gives you 7, but what I want it to do is if you
press 3 and then 4 it gives you 34. How would I be able to do that?
I appreciate the help! Thanks.
,David Peredo
#------------------ CalcApp.py ---------------------------
from Tkinter import *
class CalcApp:
def __init__(self, parent):
self.myParent = parent
self.myContainer1 = Frame(parent)
self.myContainer1.pack(side=TOP)
self.myContainer2 = Frame(parent)
self.myContainer2.pack()
self.myContainer3 = Frame(parent)
self.myContainer3.pack()
self.myContainer4 = Frame(parent)
self.myContainer4.pack()
self.myContainer5 = Frame(parent)
self.myContainer5.pack()
self.myContainer6 = Frame(parent)
self.myContainer6.pack(side=BOTTOM)
#calcTotal
self.calcTotal = 0
# Button 7
button_name = "7"
self.button3 = Button(self.myContainer1,
command = lambda
arg1=7, arg2=button_name :
self.buttonHandler(arg1, arg2)
)
self.button3.configure(text=button_name)
self.button3.pack(side=LEFT)
# Button 8
button_name = "8"
self.button3 = Button(self.myContainer1,
command = lambda
arg1=8, arg2=button_name :
self.buttonHandler(arg1, arg2)
)
self.button3.configure(text=button_name)
self.button3.pack(side=LEFT)
# Button 9
button_name = "9"
self.button3 = Button(self.myContainer1,
command = lambda
arg1=9, arg2=button_name :
self.buttonHandler(arg1, arg2)
)
self.button3.configure(text=button_name)
self.button3.pack(side=LEFT)
# Button 4
button_name = "4"
self.button3 = Button(self.myContainer2,
command = lambda
arg1=4, arg2=button_name :
self.buttonHandler(arg1, arg2)
)
self.button3.configure(text=button_name)
self.button3.pack(side=LEFT)
# Button 5
button_name = "5"
self.button3 = Button(self.myContainer2,
command = lambda
arg1=5, arg2=button_name :
self.buttonHandler(arg1, arg2)
)
self.button3.configure(text=button_name)
self.button3.pack(side=LEFT)
# Button 6
button_name = "6"
self.button3 = Button(self.myContainer2,
command = lambda
arg1=6, arg2=button_name :
self.buttonHandler(arg1, arg2)
)
self.button3.configure(text=button_name)
self.button3.pack(side=LEFT)
# Button 1
button_name = "1"
self.button1 = Button(self.myContainer3,
command = lambda
arg1=1, arg2=button_name :
self.buttonHandler(arg1, arg2)
)
self.button1.configure(text=button_name)
self.button1.pack(side=LEFT)
# Button 2
button_name = "2"
self.button2 = Button(self.myContainer3,
command = lambda
arg1=2, arg2=button_name :
self.buttonHandler(arg1, arg2)
)
self.button2.configure(text=button_name)
self.button2.pack(side=LEFT)
# Button 3
button_name = "3"
self.button3 = Button(self.myContainer3,
command = lambda
arg1=3, arg2=button_name :
self.buttonHandler(arg1, arg2)
)
self.button3.configure(text=button_name)
self.button3.pack(side=LEFT)
# Button 0
button_name = "0"
self.button3 = Button(self.myContainer4,
command = lambda
arg1=0, arg2=button_name :
self.buttonHandler(arg1, arg2)
)
self.button3.configure(text=button_name, width=3)
self.button3.pack(side=LEFT)
# Button .
button_name = "."
self.buttondot = Button(self.myContainer4)
self.buttondot.configure(text=button_name, width=1)
self.buttondot.pack(side=RIGHT)
# Button Clear
button_name = "Clear"
self.buttonClear = Button(self.myContainer6,
command = self.buttonClearClick)
self.buttonClear.configure(text=button_name)
self.buttonClear.pack(side=BOTTOM)
# Entry
self.entryBox = Entry(self.myContainer5)
self.entryBox.pack()
def buttonHandler(self, argument1, argument2):
print "You have clicked :", argument2
self.calcTotal = self.calcTotal + argument1
print self.calcTotal
self.entryBox.configure(text=self.calcTotal)
def buttonHandler_a(self, argument1, argument2):
print "You have clicked :", argument2
self.calcTotal = self.calcTotal +argument1
print self.calcTotal
def buttonClearClick(self):
print "You have cleared the total."
self.calcTotal = 0
print "\n"*100
print "Starting program Calc."
root = Tk()
myapp = CalcApp(root)
print "Starting even loop."
root.mainloop()
print "Finished executing event loop."
#End of Program
#------------------ CalcApp.py ---------------------------
