python-course-code/event.py at main · UP-MSIT/python-course-code · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
from tkinter import *
from tkinter. ttk import Combobox


class CalcWinFrm:

    def __init__(self, win):

        # Design 4 Labels in the window form
        self.lbl_calc = Label(win, text=' Calculator Application Tkinter UI', font=(
            'Arial', 16, 'bold'), fg='navy', bg='lightgrey', width=100, height=2, justify='center')
        self.lbl_1st_op = Label(win, text='First number', font=(
            'Arial', 10, 'bold'), bg='lightgrey', width=19)
        self.lbl_2nd_op = Label(win, text='Second number', font=(
            'Arial', 10, 'bold'), width=19)
        self.lbl_Results = Label(win, text='Results', font=(
            'Arial', 10, 'bold'), bg='lightgrey', width=19)

        # Create 3 Entry box in the window form
        self.entry_1st_num = Entry(width=14, font=('Arial', 14, 'normal'),
                                   justify='right')
        self.entry_2nd_num = Entry(width=14, font=('Arial', 14, 'normal'),
                                   justify='right')
        self.entry_result_num = Entry(
            width=14, font=('Arial', 14, 'bold'), justify='left')

        # Create 4 Buttons in the window form
        self.btn_add = Button(win, text='+', width=3, command=self.add)
        self.btn_sub = Button(win, text='-', width=3, command=self.sub)
        self.btn_mul = Button(win, text='x', width=3, command=self.multi)
        self.btn_div = Button(win, text='/', width=3, command=self.devi)

        # Set Title Label position in the TOP of window form
        self.lbl_calc.pack(side=TOP)

        # Set 3 Labels position in the window form
        self.lbl_1st_op.place(x=30, y=80)
        self.lbl_2nd_op.place(x=200, y=80)
        self.lbl_Results.place(x=370, y=80)

        # Set 3 Entry Box position in the window form
        self.entry_1st_num.place(x=30, y=105)
        self.entry_2nd_num.place(x=200, y=105)
        self.entry_result_num.place(x=370, y=105)

        # Set 4 Buttons position in the window form
        self.btn_add.place(x=150, y=150)
        self.btn_sub.place(x=220, y=150)
        self.btn_mul.place(x=290, y=150)
        self.btn_div.place(x=360, y=150)

    # Create add () function
    def add(self):
        self.entry_result_num.configure(state="normal")
        self.entry_result_num.delete(0, 'end')
        num1 = float(self.entry_1st_num.get())
        num2 = float(self.entry_2nd_num.get())
        result = num1+num2
        self.entry_result_num.insert(END, str(float(result)))
        self.entry_result_num.configure(state="disabled")

    # Create sub () function
    def sub(self):
        self.entry_result_num.configure(state="normal")
        self.entry_result_num.delete(0, 'end')
        num1 = float(self.entry_1st_num.get())
        num2 = float(self.entry_2nd_num.get())
        result = num1-num2
        self.entry_result_num.insert(END, str(float(result)))
        self.entry_result_num.configure(state="disabled")

    # Create multi() function
    def multi(self):
        self.entry_result_num.configure(state="normal")
        self.entry_result_num.delete(0, 'end')
        num1 = float(self.entry_1st_num.get())
        num2 = float(self.entry_2nd_num.get())
        result = num1*num2
        self.entry_result_num.insert(END, str(float(result)))
        self.entry_result_num.configure(state="disabled")

    # Create devi () function
    def devi(self):
        self.entry_result_num.configure(state="normal")
        self.entry_result_num.delete(0, 'end')
        num1 = float(self.entry_1st_num.get())
        num2 = float(self.entry_2nd_num.get())
        if (num2 != 0):
            result = num1/num2
            self.entry_result_num.insert(END, str(float(result)))
        else:
            self.entry_result_num.insert(END, str('Error!'))
        self.entry_result_num.configure(state="disabled")


# Create a window form
WinFrm = Tk()
width = 655  # Set the Width of the window form
height = 200  # Set the Hight of the window form

# Call class of CalcWinFrm
mywin = CalcWinFrm(WinFrm)

# Set a new title of window form
WinFrm.title('Python Calculator Application')

# Display window form in the central of computer screen
screen_width = WinFrm. winfo_screenwidth()  # Width of the screen
screen_height = WinFrm. winfo_screenheight()  # Height of the screen

# Calculate Starting X and Y coordinates for Window
x = (screen_width/2)-(width/2)
y = (screen_height/2)-(height/2)

WinFrm. geometry('%dx%d+%d+%d' % (width, height, x, y))

# WinFrm.geometry ("555x200")
WinFrm. resizable(False, False)
WinFrm. mainloop()