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| from tkinter import *
import tkinter.messagebox as tkMessageBox
import time
def Main():
global root
root = Tk()
root.title("Sourcecodester")
width = 600
height = 200
screen_width = root.winfo_screenwidth()
screen_height = root.winfo_screenheight()
x = (screen_width / 2) - (width / 2)
y = (screen_height / 2) - (height / 2)
root.geometry("%dx%d+%d+%d" % (width, height, x, y))
Top = Frame(root, width=600)
Top.pack(side=TOP)
stopWatch = StopWatch(root)
stopWatch.pack(side=TOP)
Bottom = Frame(root, width=600)
Bottom.pack(side=BOTTOM)
Start = Button(Bottom, text='Start', command=stopWatch.Start, width=10, height=2)
Start.pack(side=LEFT)
Stop = Button(Bottom, text='Stop', command=stopWatch.Stop, width=10, height=2)
Stop.pack(side=LEFT)
Reset = Button(Bottom, text='Reset', command=stopWatch.Reset, width=10, height=2)
Reset.pack(side=LEFT)
Exit = Button(Bottom, text='Exit', command=stopWatch.Exit, width=10, height=2)
Exit.pack(side=LEFT)
Title = Label(Top, text="Python: Simple Stopwatch For Beginners", font=("arial", 20), fg="white", bg="black")
Title.pack(fill=X)
root.config(bg="black")
root.mainloop()
class StopWatch(Frame):
def __init__(self, parent=None, **kw):
Frame.__init__(self, parent, kw)
self.startTime = 0.0
self.nextTime = 0.0
self.onRunning = 0
self.timestr = StringVar()
self.MakeWidget()
def MakeWidget(self):
timeText = Label(self, textvariable=self.timestr, font=("times new roman", 50), fg="green", bg="black")
self.SetTime(self.nextTime)
timeText.pack(fill=X, expand=NO, pady=2, padx=2)
def Updater(self):
self.nextTime = time.time() - self.startTime
self.SetTime(self.nextTime)
self.timer = self.after(50, self.Updater)
def SetTime(self, nextElap):
minutes = int(nextElap/60)
seconds = int(nextElap - minutes*60.0)
miliSeconds = int((nextElap - minutes*60.0 - seconds)*100)
self.timestr.set('%02d:%02d:%02d' % (minutes, seconds, miliSeconds))
def Start(self):
if not self.onRunning:
self.startTime = time.time() - self.nextTime
self.Updater()
self.onRunning = 1
def Stop(self):
if self.onRunning:
self.after_cancel(self.timer)
self.nextTime = time.time() - self.startTime
self.SetTime(self.nextTime)
self.onRunning = 0
def Exit(self):
result = tkMessageBox.askquestion('Sourcecodester', 'Are you sure you want to exit?', icon='warning')
if result == 'yes':
root.destroy()
exit()
def Reset(self):
self.startTime = time.time()
self.nextTime = 0.0
self.SetTime(self.nextTime)
if __name__ == '__main__':
Main() |
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