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
|
# SPDX-License-Identifier: LGPL-3.0-or-later
# Copyright (C) 2020 Johannes Wache
"""Calculator application
This is a simple calculator app that uses the build-in eval() function to
compute the solution.
"""
import wasp, fonts
# 2-bit RLE, generated from res/calc.png, 413 bytes
calc = (
b'\x02'
b'`@'
b'(@\x03P?\x0eV?\x08[?\x04_?\x01b'
b'<f9h7j5l3n1p/r-t'
b'+H\xd1D\xd1H*H\xd2B\xd2H)I\xd2B'
b"\xd2I'J\xd2B\xd2I'J\xc8\xc2\xc8B\xd2J"
b'%K\xc7\xc1\x02\xc1\xc7B\xd2J%K\xc7\xc1\x02\xc2'
b'\xc6B\xd2K$K\xc5\xc2\xc1\x02\xc1\xc2\xc5B\xd2K'
b'#L\xc4\xc1\x08\xc1\xc4B\xc5\x08\xc5L"L\xc4\xc1'
b'\x08\xc2\xc3B\xc5\x08\xc1\xc1\xc3L"L\xc5\xc2\xc1\x02'
b'\xc8B\xcf\xc1\xc2L!M\xc6\xc2\x02\xc8B\xd0\xc1\xc1'
b'M M\xc7\xc1\x02\xc8B\xd1\xc1M M\xc8\xc2\xc8'
b'B\xd2M M\xc9\xc1\xc8B\xd2M M\xd2B\xd2'
b'M M\xd2B\xd2M N\xd0D\xd0N \x7f\x01'
b' \x7f\x01 N\xd0D\xc1\xcfN M\xd2B\xc1\xd1'
b'M M\xd2B\xd2AL M\xd2B\xd2AL '
b'M\xd2B\xd2AL M\xc7\xc1\xcaB\xc5\xc8\xc5A'
b'L M\xc5\xc1\x02\xc2\x02\xc1\xc5B\xc4\xc1\x08\xc1\xc4'
b'AL!L\xc5\xc1\x06\xc1\xc5B\xc4\xc1\x08\xc1\xc1\xc3'
b'AK"L\xc6\xc1\x04\xc1\xc6B\xc6\xca\xc2AK"'
b'L\xc6\xc1\x04\xc1\xc6B\xc7\xca\xc1L#K\xc5\xc1\x06'
b'\xc1\xc5B\xc4\xc1\x08\xc1\xc4JA$K\xc5\xc1\x02\xc2'
b'\x02\xc1\xc5B\xc4\xc1\x08\xc1\xc4K%J\xc6\xc2\xc2\xc2'
b"\xc6B\xc5\xc8\xc5J&J\xd2B\xc6\xccJ'I\xd2"
b'B\xc7\xcbI(I\xd2B\xc8\xcaI)H\xd2B\xc9'
b'\xc9H*H\xd1D\xc9\xc8H+t-r/p1'
b'n3l5j7h9f<b?\x01^?\x05'
b'XAA?\tV?\x0eP(')
class CalculatorApp():
NAME = 'Calc'
ICON = calc
def __init__(self):
self.output = ""
self.fields = [["7","8","9","+","("],
["4","5","6","-",")"],
["1","2","3","*","^"],
["C","0",".",":","="]]
def foreground(self):
self._draw()
self.output = ""
wasp.system.request_event(wasp.EventMask.TOUCH)
def touch(self, event):
if (event[2] < 48):
if (event[1] > 200): # undo button pressed
if (self.output != ""):
self.output = self.output[:-1]
else:
indices = [(event[2]// 48)-1,event[1]//47]
# Error handling for touching at the border
if (indices[0]>3):
indices[0] = 3
if (indices[1]>4):
indices[1] = 4
button_pressed = self.fields[indices[0]][indices[1]]
if (button_pressed == "C"):
self.output = ""
elif (button_pressed == "="):
self.output = self.calculate(self.output)
else:
self.output += button_pressed
self.display_output()
def _draw(self):
draw = wasp.watch.drawable
draw.fill()
# Make grid:
draw.set_color(wasp.system.theme('accent-lo'))
for i in range(4):
# horizontal lines
draw.line(x0=0,y0=(i+1)*47,x1=239,y1=(i+1)*47)
# vertical lines
draw.line(x0=(i+1)*47,y0=47,x1=(i+1)*47,y1=239)
draw.line(x0=0, y0=47, x1=0, y1=239)
draw.line(x0=239, y0=47, x1=239, y1=239)
draw.line(x0=0, y0=239, x1=239, y1=239)
# Draw button label:
draw.set_color(wasp.system.theme('accent-hi'))
for x in range(5):
if x == 3:
draw.set_color(wasp.system.theme('accent-mid'))
for y in range(4):
label = self.fields[y][x]
if (x == 0):
draw.string(label, x*47+14, y*47+60)
else:
draw.string(label, x*47+16, y*47+60)
draw.string("<", 215, 10)
draw.set_color(wasp.system.theme('accent-hi'))
def display_output(self):
wasp.watch.drawable.fill(x=2,y=2,w=170,h=40)
if (self.output != ""):
if len(self.output) >= 10:
wasp.watch.drawable.string(self.output[len(self.output)-9:], 6, 14, width=170)
else:
wasp.watch.drawable.string(self.output, 6, 14, width=170)
def calculate(self,s):
equation = s
# Normal calculator stuff
for i in range(len(s)):
if (s[i] =="^"):
equation = s[:i] + "**"+s[i+1:]
elif (s[i] == ":"):
equation = s[:i] + "/"+s[i+1:]
try:
result = eval(equation)
except: # Error
result = ""
return str(result)
|
