-
Notifications
You must be signed in to change notification settings - Fork 1
Expand file tree
/
Copy pathcalculator.py
More file actions
133 lines (99 loc) · 6.12 KB
/
Copy pathcalculator.py
File metadata and controls
133 lines (99 loc) · 6.12 KB
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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
from tkinter import *
def btnClick(numbers):
global operator
numbers = str(numbers)
operator = str(text_input.get())
operator = operator + str(numbers)
leng =len(operator)
text_input.set(operator)
entry.icursor(leng)
def clickEquals(values):
global operator
operator =""
operator = str(values)
text_input.set(operator)
def equalsInput():
try:
global operator
operator = text_input.get()
dis = str(eval(operator))
text_output.set(str(operator)+'='+dis)
sum_val =str(eval(dis))
text_input.set(sum_val)
clickEquals(sum_val)
except:
text_input.set("error")
def clearDisplay():
global operator
operator =""
text_input.set("")
text_output.set("")
def back():
strStr = text_input.get()
global operator
operator =""
text_input.set("")
backtext = strStr[0:-1]
btnClick(backtext)
def pressEnter(event):
global operator
operator = text_input.get()
dis = str(eval(operator))
text_output.set(str(operator)+'='+dis)
text_input.set(dis)
# ckeck digit
def validate(action, index, value_if_allowed,
prior_value, text, validation_type, trigger_type, widget_name):
if text in '0123456789.-+*/':
try:
str(value_if_allowed)
return True
except ValueError:
return False
else:
return False
if __name__ == "__main__":
cal = Tk()
cal.geometry("297x435+800+50")
# frame=Frame(cal,width=100,heigh=100,bd=11)
cal.resizable(0,0)
cal.title(" Enthuons Calculator")
operator =""
text_input =StringVar()
text_output =StringVar()
Entry(cal,font = ('arial',15,),textvariable = text_output,bd = 0,insertwidth = 9,justify = 'left',width= 21,highlightthickness=0,state="readonly").grid(columnspan = 4,pady=12, padx=3)
reg = (cal.register(validate),
'%d', '%i', '%P', '%s', '%S', '%v', '%V', '%W')
entry = Entry(cal,font = ('arial',15,),textvariable = text_input,bd = 0,insertwidth = 2,justify = 'right',width =21,highlightthickness=0,validate = 'key',validatecommand = reg)
entry.grid(columnspan = 4,sticky="nsew",pady = 9,padx= 10,ipady = 7)
entry.focus_set()
entry.bind('<Return>',pressEnter)
# Entry(cal,font = ('arial',15,),bd = 0,insertwidth = 2,justify = 'left',width= 21,highlightthickness=0,state="readonly").grid(columnspan = 4,pady=0)
# entry.focus()
# button display
# ============================ first row ===================================
Button(cal,padx=12,pady = 8,bd = 1,fg = "black",font= ('arial',20,'bold'),text ="1",width = 2,command =lambda:btnClick(1)).grid(row =3,column = 0,padx= 7,pady = 5)
# btn1 = Button(cal,padx=12,pady = 8,bd = 1,fg = "black",font= ('arial',20,'bold'),text ="1",width = 2,command =lambda:eventHandler(1)).grid(row =3,column = 0)
Button(cal,padx=12,pady = 8,bd = 1,fg = "black",font= ('arial',20,'bold'),text ="2",width = 2,command =lambda:btnClick(2)).grid(row =3,column = 1,padx= 7,pady = 5)
Button(cal,padx=12,pady = 8,bd = 1,fg = "black",font= ('arial',20,'bold'),text ="3",width = 2,command =lambda:btnClick(3)).grid(row =3,column = 2,padx= 7,pady = 5)
Button(cal,padx=12,pady = 8,bd = 1,fg = "black",font= ('arial',20,'bold'),text ="+",width = 2,command =lambda:btnClick("+")).grid(row =3,column = 3,padx= 7,pady = 5)
# ============================ second row =====================================
Button(cal,padx=12,pady = 10,bd = 1,fg = "black",font= ('arial',20,'bold'),text ="4",width = 2,command =lambda:btnClick(4)).grid(row =4,column = 0,padx= 7,pady = 5)
Button(cal,padx=12,pady = 10,bd = 1,fg = "black",font= ('arial',20,'bold'),text ="5",width = 2,command =lambda:btnClick(5)).grid(row =4,column = 1,padx= 7,pady = 5)
Button(cal,padx=12,pady = 10,bd = 1,fg = "black",font= ('arial',20,'bold'),text ="6",width = 2,command =lambda:btnClick(6)).grid(row =4,column = 2,padx= 7,pady = 5)
Button(cal,padx=12,pady = 10,bd = 1,fg = "black",font= ('arial',20,'bold'),text ="-",width = 2,command =lambda:btnClick("-")).grid(row =4,column = 3,padx= 7,pady = 5)
# ============================ third row =======================================
Button(cal,padx=12,pady = 10,bd = 1,fg = "black",font= ('arial',20,'bold'),text ="7",width = 2,command =lambda:btnClick(7)).grid(row =5,column = 0,padx= 7,pady = 5)
Button(cal,padx=12,pady = 10,bd = 1,fg = "black",font= ('arial',20,'bold'),text ="8",width = 2,command =lambda:btnClick(8)).grid(row =5,column = 1,padx= 7,pady = 5)
Button(cal,padx=12,pady = 10,bd = 1,fg = "black",font= ('arial',20,'bold'),text ="9",width = 2,command =lambda:btnClick(9)).grid(row =5,column = 2,padx= 7,pady = 5)
Button(cal,padx=12,pady = 10,bd = 1,fg = "black",font= ('arial',20,'bold'),text ="*",width = 2,command =lambda:btnClick("*")).grid(row =5,column = 3,padx= 7,pady = 5)
# ============================ forth row =======================================
Button(cal,padx=12,pady = 10,bd = 1,fg = "black",font= ('arial',20,'bold'),text ="0",width = 2,command =lambda:btnClick(0)).grid(row =6,column = 0,padx= 7,pady = 5)
Button(cal,padx=12,pady = 10,bd = 1,fg = "black",font= ('arial',20,'bold'),text =".",width = 2,command =lambda:btnClick(".")).grid(row =6,column = 1,padx= 7,pady = 5)
Button(cal,padx=12,pady = 10,bd = 1,fg = "black",font= ('arial',20,'bold'),text ="=",width = 2,command =lambda:equalsInput()).grid(row =6,column = 2,padx= 7,pady = 5)
Button(cal,padx=12,pady = 10,bd = 1,fg = "black",font= ('arial',20,'bold'),text ="/",width = 2,command =lambda:btnClick("/")).grid(row =6,column = 3,padx= 7,pady = 5)
# ==============================fifth row =======================================
Button(cal,padx=26,pady = 10,bd = 1,fg = "black",font= ('arial',20,''),text ="clr",width=5,command =lambda:clearDisplay()).grid(row =7,column= 0,columnspan=2,padx= 7,pady = 5)
Button(cal,padx=26,pady = 10,bd = 1,fg = "black",font= ('arial',20,''),text ="Back",width=5,command =lambda:back()).grid(row =7,column= 2,columnspan=2,padx= 7,pady = 5)
# # cal.wm_resizable(width=None,height=None)
cal.mainloop()