-
Notifications
You must be signed in to change notification settings - Fork 0
/
utils.py
253 lines (207 loc) · 8.37 KB
/
utils.py
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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
import qrcode.constants
from datetime import datetime, timedelta
named_colors = {
"black": (0, 0, 0),
"white": (255, 255, 255),
"red": (255, 0, 0),
"green": (0, 255, 0),
"blue": (0, 0, 255),
"yellow": (255, 255, 0),
"orange": (255, 165, 0),
"purple": (128, 0, 128),
"pink": (255, 192, 203),
"brown": (165, 42, 42),
"gray": (128, 128, 128),
"cyan": (0, 255, 255),
"magenta": (255, 0, 255),
"transparent": "transparent", # Special case for transparent
}
def parse_color(color_str):
try:
# Check if color_str is a named color
if color_str.lower() in named_colors:
return named_colors[color_str.lower()]
if color_str.startswith("#"):
# Hex color
color_str = color_str.lstrip("#")
if len(color_str) == 6:
return tuple(int(color_str[i : i + 2], 16) for i in (0, 2, 4))
else:
raise ValueError("Invalid hex color format")
elif color_str.startswith("rgb(") and color_str.endswith(")"):
# RGB color
color_str = color_str[4:-1]
rgb_values = [int(x.strip()) for x in color_str.split(",")]
if len(rgb_values) == 3:
return tuple(rgb_values)
else:
raise ValueError("Invalid RGB color format")
elif color_str.startswith("(") and color_str.endswith(")"):
# RGB color without 'rgb' prefix
color_str = color_str[1:-1]
rgb_values = [int(x.strip()) for x in color_str.split(",")]
if len(rgb_values) == 3:
return tuple(rgb_values)
else:
raise ValueError("Invalid RGB color format")
else:
# Assume hex color if no prefix is present
if len(color_str) == 6:
return tuple(int(color_str[i : i + 2], 16) for i in (0, 2, 4))
else:
raise ValueError("Invalid color format")
except ValueError:
raise ValueError(f"Invalid color format: {color_str}")
def suggest_qr_version(data, error_correction=qrcode.constants.ERROR_CORRECT_L):
# Define the maximum data capacity for each version and error correction level
max_capacity = [
[41, 77, 127, 187, 255, 322, 370, 461, 552, 652, 772, 883, 1022, 1101, 1250, 1408],
[34, 63, 101, 149, 202, 255, 293, 365, 432, 513, 604, 691, 796, 871, 991, 1082],
[27, 48, 77, 111, 144, 178, 206, 258, 308, 370, 438, 506, 586, 644, 718, 808],
[17, 34, 58, 82, 106, 139, 154, 202, 235, 288, 331, 374, 427, 468, 530, 602]
]
# Find the minimum version that can accommodate the data length
for version, capacities in enumerate(max_capacity):
if len(data) <= capacities[error_correction]:
return version + 1 # Versions are 1-indexed
# If data is too large for the maximum version, return the highest version
return len(max_capacity)
def suggest_box_size(data, border_fraction=0.5):
# Constants for module size and border default
box_size_factor = 50
# Calculate the recommended box size based on the version
recommended_box_size = max(len(data) // box_size_factor, 10)
# Return the recommended sizes
return recommended_box_size
def format_contact(name, phone, email=None, address=None, company=None, website=None, **kwargs):
# Format the contact data according to the vCard specification
contact_data = f'BEGIN:VCARD\nVERSION:3.0\nFN:{name}\n' # Full name
contact_data += f'ORG:{company}\n' if company else "" # Organization
contact_data += f'ADR:;;{address};;;;\n' if address else "" # Address
contact_data += f'TEL;TYPE=work,voice;VALUE=uri:tel:{phone}\n' # Phone
contact_data += f'EMAIL;TYPE=INTERNET;TYPE=WORK;TYPE=PREF:{email}\n' if email else "" # Email
contact_data += f"URL;TYPE=Homepage:{website}" if website else ""
contact_data += 'END:VCARD' # End of contact entry
return contact_data
def format_event(title, start=None, end=None, location=None, description=None, **kwargs):
event_data = f'BEGIN:VEVENT\nSUMMARY:{title}\n' # Title
try:
start = start.strftime('%Y%m%dT%H%M%SZ')
end = end.strftime('%Y%m%dT%H%M%SZ')
except:
start = end = ""
if start:
event_data += f'DTSTART:{start}\n' # Start time
if end:
event_data += f'DTEND:{end}\n' # End time
if location:
event_data += f'LOCATION:{location}\n' # Location
if description:
event_data += f'DESCRIPTION:{description}\n' # Description
event_data += 'END:VEVENT' # End of event entry
return event_data
def format_bookmark(title, url, **kwargs):
data_bookmark = f"MEBKM:URL:{url};TITLE:{title};;"
return data_bookmark
def format_wifi(ssid, password=None, **kwargs):
if password:
wifi_data = f"WIFI:T:WPA;S:{ssid};P:{password};;"
else:
wifi_data = f"WIFI:T:nopass;S:{ssid};;"
return wifi_data
def format_bitcoin(address, amount, message=None, **kwargs):
bitcoin_data = f"bitcoin:{address}?amount={amount}"
if message:
bitcoin_data += f"&message={message}"
return bitcoin_data
def format_location(latitude, longitude, **kwargs):
location_data = f"geo:{latitude},{longitude}"
return location_data
def format_sms(phone, message, **kwargs):
phone += "+1" if not "+" in phone else ""
sms_data = f"sms:{phone}:{message}"
return sms_data
def format_email(email, subject, message, **kwargs):
email_data = f"mailto:{email}?subject={subject}&body={message}"
return email_data
def format_tel(number, **kwargs):
number += "+1" if not number.startswith("+") else ""
tel_data = f"tel:{number}"
return tel_data
prefix_maps = {
"contact": format_contact,
"event": format_event,
"bookmark": format_bookmark,
"wifi": format_wifi,
"bitcoin": format_bitcoin,
"location": format_location,
"sms": format_sms,
"email": format_email,
"tel": format_tel
}
def generate_qr_code(data=None, width=None, height=None, box_size=None, border_size=4, data_type=None, data_dict={}):
# Calculate box size based on the length of the data
try:
if data_type.lower() in prefix_maps.keys():
data = prefix_maps[data_type.lower()](**data_dict)
print(data)
except Exception as e:
return ValueError(e)
if data:
if box_size == None:
box_size = suggest_box_size(data)
if border_size == None:
border_size = 4
version = suggest_qr_version(data)
else:
return None
print(f"Box Size: {box_size}")
print(f"Border Size: {border_size}")
print(f"Version: {version}")
qr = qrcode.QRCode(
version=version,
error_correction=qrcode.constants.ERROR_CORRECT_L,
box_size=box_size,
border=border_size,
)
qr.add_data(data)
qr.make(fit=True)
img = qr.make_image(fill_color="black", back_color="white")
if width and height:
img = img.resize((width, height), resample=0)
img.show()
# data_dict={
# "name": "John Doe",
# "phone": "1234567890",
# "email": "johnDoe@gmail.com",
# "address": "1234 Main St. Anytown, USA",
# "website": "https://www.johndoe.com",
# "company": "John Doe Inc."}
# generate_qr_code(data="Not Needed", data_type="contact", data_dict=data_dict)
# generate_qr_code(data_type="tel", data_dict={"number":"123456789"})
# generate_qr_code(data_type="event", data_dict={
# "title": "Event Title",
# "start": datetime.now(),
# "end": datetime.now() + timedelta(hours=1),
# "location": "1234 Main St. Anytown, USA",
# "description": "This is a description of the event"})
# generate_qr_code(data_type="bookmark", data_dict={
# "title": "Bookmark Title",
# "url": "https://www.google.com"})
# generate_qr_code(data_type="wifi", data_dict={
# "ssid": "Wifi",
# "password": "87654321"})
# generate_qr_code(data_type="bitcoin", data_dict={
# "address": "1BvBMSEYstWetqTFn5Au4m4GFg7xJaNVN2",
# "amount": 0.0001,
# "message": "Donation for project"})
# generate_qr_code(data_type="location", data_dict={
# "latitude": 40.7128,
# "longitude": 74.0060})
# generate_qr_code(data_type="sms", data_dict={
# "phone": "+1234567890",
# "message": "Hello World!"})
# generate_qr_code(data_type="email", data_dict={
# "email": "johndoe@gmail.com",
# "subject": "Hello World!",
# "message": "Hello World!"})