def make(self):
if self.needs_update == True:
self.qr = QRCode(self.size, self.level)
self.qr.addData(self.data)
# Check that the data fits into the QR code of the required size:
size = self.qr.getMinimumSize()
if self.size < size:
self.size = size
self.qr = QRCode(size, self.level)
self.qr.addData(self.data)
self.qr.make()
self.image = self.qr.makeImage()
self.needs_update = False
def make(self): if self.needs_update == True: self.qr = QRCode(self.size, self.level) self.qr.addData(self.data) # Check that the data fits into the QR code of the required size: size = self.qr.getMinimumSize() if self.size < size: self.size = size self.qr = QRCode(size, self.level) self.qr.addData(self.data) self.qr.make() self.image = self.qr.makeImage() self.needs_update = False
class QR(): ''' Base QR Code API class.''' def __init__(self, size=1, level = QRErrorCorrectLevel.M): self.qr = QRCode(size, level) self.data = '' self.level = level self.size = size self.needs_update = True def write(self, text): self.data += text.__str__() self.needs_update = True def make(self): if self.needs_update == True: self.qr = QRCode(self.size, self.level) self.qr.addData(self.data) # Check that the data fits into the QR code of the required size: size = self.qr.getMinimumSize() if self.size < size: self.size = size self.qr = QRCode(size, self.level) self.qr.addData(self.data) self.qr.make() self.image = self.qr.makeImage() self.needs_update = False def display(self): if self.needs_update: self.make() self.image.show() def save(self, imagename): self.image.save(imagename)
class QR():
''' Base QR Code API class.'''
def __init__(self, size=1, level=QRErrorCorrectLevel.M):
self.qr = QRCode(size, level)
self.data = ''
self.level = level
self.size = size
self.needs_update = True
def write(self, text):
self.data += text.__str__()
self.needs_update = True
def make(self):
if self.needs_update == True:
self.qr = QRCode(self.size, self.level)
self.qr.addData(self.data)
# Check that the data fits into the QR code of the required size:
size = self.qr.getMinimumSize()
if self.size < size:
self.size = size
self.qr = QRCode(size, self.level)
self.qr.addData(self.data)
self.qr.make()
self.image = self.qr.makeImage()
self.needs_update = False
def display(self):
if self.needs_update:
self.make()
self.image.show()
def save(self, imagename):
self.image.save(imagename)
def make_image(self):
qr = QRCode(9, QRErrorCorrectLevel.L) # 8 handles long data also
qr.addData(self.data)
qr.make() # todo: handle typeerror when data is too large
im = qr.makeImage()
im.save(self.img_path, "JPEG")
def make_image(self):
qr = QRCode(9, QRErrorCorrectLevel.L) # 8 handles long data also
qr.addData(self.data)
qr.make() # todo: handle typeerror when data is too large
im = qr.makeImage()
im.save(self.img_path, "JPEG")
def text_to_qrSvg(text, left = 0, top = 0, width = 100):
qr = QRCode(qr_version_for_h(text), QRErrorCorrectLevel.H)
qr.addData(text)
qr.make()
size = float(width) / qr.getModuleCount()
antigapFactor = 1.05
arr = []
for y in range(qr.getModuleCount()):
for x in range(qr.getModuleCount()):
if qr.isDark(y, x):
arr.append(
'<rect x="' + f2s(left + x * size) +
'" y="' + f2s(top + y * size) +
'" width="' + f2s(size * antigapFactor) +
'" height="' + f2s(size * antigapFactor) +
'" fill="#000000" />\n')
return ''.join(arr)
def qr_data_uri(self):
"""Generates a QR Code and returns it as a data URI"""
qr = QRCode(4, QRErrorCorrectLevel.L)
qr.addData(self.hmac())
qr.make()
im = qr.makeImage()
# the image in the data uri seems to be rotated, unintentionally.
im = im.rotate(180)
qr_string = StringIO.StringIO()
im.save(qr_string, format="PNG")
format = "data:image/png;base64,{0}"
return format.format(base64.b64encode(qr_string.getvalue()))
def save_qrcode(text, img_type, path, name, qr_type_number, error_correct_level):
# write qr code to filesystem
if img_type not in QR_IMG_TYPES:
raise ImageTypeException("can't generate QR Code, not a valid type")
if not toolbox.string_has_content(text):
raise ValueError("can't generate QR Code without proper string content")
qr = QRCode(qr_type_number, error_correct_level)
qr.addData(text)
qr.make()
im = qr.makeImage()
qrcode_filename = name+img_type
im.save(QR_FS_ROOT+qrcode_filename)
return qrcode_filename
def user_create_barcode(sender, instance, created, **kwargs):
instance = User.objects.get(email=instance.email)
password_hash = gen_passhash(instance)
qr = QRCode(8, QRErrorCorrectLevel.Q)
qr.addData("####%s|%s" % (str(instance.pk), str(password_hash)))
qr.make()
im = qr.makeImage()
temp_file = StringIO()
# We'll take the username if we have to, but prefer first+last
im.save(temp_file, format='png')
barcode_contents = ContentFile(temp_file.getvalue())
user_barcode = UserBarcode.objects.get_or_create(user=instance)[0]
user_barcode.barcode.save('%s.png' % str(instance.pk), barcode_contents)
if settings.PRINT_CARDS:
print_card(instance, user_barcode.barcode.name)
pass
def user_create_barcode(sender, instance, created, **kwargs):
instance = User.objects.get(email=instance.email)
password_hash = gen_passhash(instance)
qr = QRCode(8, QRErrorCorrectLevel.Q)
qr.addData("####%s|%s" % (str(instance.pk), str(password_hash)))
qr.make()
im = qr.makeImage()
temp_file = StringIO()
# We'll take the username if we have to, but prefer first+last
im.save(temp_file, format='png')
barcode_contents = ContentFile(temp_file.getvalue())
user_barcode = UserBarcode.objects.get_or_create(user=instance)[0]
user_barcode.barcode.save('%s.png' % str(instance.pk), barcode_contents)
if settings.PRINT_CARDS:
print_card(instance, user_barcode.barcode.name)
pass
def render_label(request, c, metrics, da, badge_img, debug):
"""Render a single label"""
badge = da.badge
badge_image_width = (1.0 + (1.0 / 64.0)) * inch
badge_image_height = (1.0 + (1.0 / 64.0)) * inch
qr_left = badge_image_width - metrics["qr_overlap"]
qr_bottom = badge_image_height - metrics["qr_overlap"]
qr_width = metrics["width"] - qr_left
qr_height = metrics["height"] - qr_bottom
if False and debug:
# Draw some layout lines on debug.
c.setLineWidth(0.3)
c.rect(0, 0, metrics["width"], metrics["height"])
c.rect(qr_left, qr_bottom, qr_width, qr_height)
c.rect(0, 0, badge_image_width, badge_image_height)
fit_text(c, da.badge.title, 0.0, badge_image_height, badge_image_width, qr_height)
c.saveState()
c.rotate(-90)
code_height = qr_height * (0.45)
claim_height = qr_height - code_height
c.setFont("Courier", code_height)
c.drawCentredString(0 - (badge_image_width / 2.0), metrics["height"] - code_height, da.claim_code)
text = """
<font name="Helvetica">Claim at</font> <font name="Courier">%s</font>
""" % (
settings.SITE_TITLE
)
fit_text(c, text, 0 - badge_image_height, badge_image_width, badge_image_width, claim_height)
c.restoreState()
# Attempt to build a QR code image for the claim URL
claim_url = request.build_absolute_uri(da.get_claim_url())
qr_img = None
try:
# Try using PyQRNative: http://code.google.com/p/pyqrnative/
# badg.us should have this in vendor-local
from PyQRNative import QRCode, QRErrorCorrectLevel
# TODO: Good-enough settings?
if len(claim_url) < 20:
qr = QRCode(3, QRErrorCorrectLevel.L)
elif len(claim_url) < 50:
qr = QRCode(4, QRErrorCorrectLevel.L)
else:
qr = QRCode(10, QRErrorCorrectLevel.L)
qr.addData(claim_url)
qr.make()
qr_img = ImageReader(qr.makeImage())
except ImportError:
try:
# Hmm, if we don't have PyQRNative, then try abusing this web
# service. Should be fine for low volumes.
qr_url = "http://api.qrserver.com/v1/create-qr-code/?%s" % urllib.urlencode(
{"size": "%sx%s" % (500, 500), "data": claim_url}
)
qr_img = ImageReader(StringIO(urllib2.urlopen(qr_url).read()))
except Exception:
# Ignore issues in drawing the QR code - maybe show an error?
pass
if qr_img:
c.drawImage(qr_img, qr_left, qr_bottom, qr_width, qr_height)
c.drawImage(badge_img, 0.0 * inch, 0.0 * inch, badge_image_width, badge_image_height)
print 'Usage: python', sys.argv[0], 'content'
sys.exit(1)
levels = [17, 32, 53, 78, 106, 134, 154, 192, 230, 271]
level = None
for i in zip(range(1, 11), levels):
if len(text) <= i[1]:
level = i[0]
break
if level is None:
print 'Content too long (271 characters maximum).'
sys.exit(1)
qr = QRCode(level, QRErrorCorrectLevel.L)
qr.addData(text)
qr.make()
dark = ' '
light = u'\u2588\u2588'
width = qr.moduleCount
for i in range(4):
print light * (qr.moduleCount + 8)
for y in range(qr.moduleCount):
row = light * 4
for x in range(qr.moduleCount):
def ticket(image, ticket, utils):
image = image.copy()
if not ticket:
return image
import string
_multi = (
'pier maria', 'gian battista', 'arnaldo miguel', 'dr. yves', 'dr. stefan', 'mr yun',
)
check = ticket['name'].lower()
for x in _multi:
if check.startswith(x):
first_name = ticket['name'][:len(x)].strip()
last_name = ticket['name'][len(x):].strip()
break
else:
try:
first_name, last_name = ticket['name'].split(' ', 1)
except ValueError:
first_name = ticket['name']
last_name = ''
tagline = ticket.get('tagline', '').strip()
first_name = first_name.upper().strip()
last_name = string.capwords(last_name.strip())
color_name = 75, 129, 135
color_info = 125, 111, 96
w = image.size[0] / 2
name_width = max(
_FONTS['name'].getsize(first_name)[0],
_FONTS['name'].getsize(last_name)[0])
if name_width > w - 60:
font = _FONTS['name_small']
name_y = 400, 510
else:
font = _FONTS['name']
name_y = 460, 590
if ticket['badge_image']:
logo = Image.open(ticket['badge_image']).resize((64, 64))
if logo.mode != 'RGBA':
if logo.mode == 'LA':
logo = logo.convert('RGBA')
else:
if logo.mode != 'RGB':
logo = logo.convert('RGB')
logo = makeColorTransparent(logo, logo.getpixel((0, 0)), thresh2=150)
else:
logo = PY_LOGO
rows = [
(first_name, (50, name_y[0]), font, color_name),
(last_name, (50, name_y[1]), font, color_name),
(tagline, (50, 880), _FONTS['info'], color_info),
] + [
(logo, (50 + (logo.size[0] + 20) * ix, 700)) for ix in range(ticket.get('experience', 0))
]
mirrored = [
(row[0], ) + ((w + row[1][0], row[1][1]),) + row[2:]
for row in rows
]
for row in rows + mirrored:
if isinstance(row[0], Image.Image):
image.paste(row[0], row[1], row[0])
else:
t, pos, font, color = row
utils['draw_info'](image, w - 60, t, pos, font, color)
if ticket.get('profile-link'):
qr = QRCode(8, QRErrorCorrectLevel.H)
qr.addData(ticket['profile-link'])
qr.make()
im = qr.makeImage().resize((int(18*0.03937*300), int(18*0.03937*300)))
image.paste(im, (w + 600, 1030))
return image
def render_label(request, c, metrics, da, badge_img, debug):
"""Render a single label"""
badge = da.badge
badge_image_width = (1.0 + (1.0/64.0)) * inch
badge_image_height = (1.0 + (1.0/64.0)) * inch
qr_left = badge_image_width - metrics['qr_overlap']
qr_bottom = badge_image_height - metrics['qr_overlap']
qr_width = metrics['width'] - qr_left
qr_height = metrics['height'] - qr_bottom
if False and debug:
# Draw some layout lines on debug.
c.setLineWidth(0.3)
c.rect(0, 0, metrics['width'], metrics['height'])
c.rect(qr_left, qr_bottom, qr_width, qr_height)
c.rect(0, 0, badge_image_width, badge_image_height)
fit_text(c, da.badge.title,
0.0, badge_image_height,
badge_image_width, qr_height)
c.saveState()
c.rotate(-90)
code_height = qr_height * (0.45)
claim_height = qr_height - code_height
c.setFont("Courier", code_height)
c.drawCentredString(0 - (badge_image_width / 2.0),
metrics['height'] - code_height,
da.claim_code)
text = """
<font name="Helvetica">Claim at</font> <font name="Courier">%s</font>
""" % (settings.SITE_TITLE)
fit_text(c, text,
0 - badge_image_height, badge_image_width,
badge_image_width, claim_height)
c.restoreState()
# Attempt to build a QR code image for the claim URL
claim_url = request.build_absolute_uri(da.get_claim_url())
qr_img = None
try:
# Try using PyQRNative: http://code.google.com/p/pyqrnative/
# badg.us should have this in vendor-local
from PyQRNative import QRCode, QRErrorCorrectLevel
# TODO: Good-enough settings?
if len(claim_url) < 20:
qr = QRCode(3, QRErrorCorrectLevel.L)
elif len(claim_url) < 50:
qr = QRCode(4, QRErrorCorrectLevel.L)
else:
qr = QRCode(10, QRErrorCorrectLevel.L)
qr.addData(claim_url)
qr.make()
qr_img = ImageReader(qr.makeImage())
except ImportError:
try:
# Hmm, if we don't have PyQRNative, then try abusing this web
# service. Should be fine for low volumes.
qr_url = ("http://api.qrserver.com/v1/create-qr-code/?%s" %
urllib.urlencode({'size':'%sx%s' % (500, 500),
'data':claim_url}))
qr_img = ImageReader(StringIO(urllib2.urlopen(qr_url).read()))
except Exception, e:
# Ignore issues in drawing the QR code - maybe show an error?
pass
def __init__(self, size=1, level = QRErrorCorrectLevel.M): self.qr = QRCode(size, level) self.data = '' self.level = level self.size = size self.needs_update = True
def __init__(self, size=1, level=QRErrorCorrectLevel.M):
self.qr = QRCode(size, level)
self.data = ''
self.level = level
self.size = size
self.needs_update = True
def ticket(image, ticket, utils):
image = image.copy()
if not ticket:
return image
import string
_multi = (
'pier maria',
'gian battista',
'arnaldo miguel',
'dr. yves',
'dr. stefan',
'mr yun',
)
check = ticket['name'].lower()
for x in _multi:
if check.startswith(x):
first_name = ticket['name'][:len(x)].strip()
last_name = ticket['name'][len(x):].strip()
break
else:
try:
first_name, last_name = ticket['name'].split(' ', 1)
except ValueError:
first_name = ticket['name']
last_name = ''
tagline = ticket.get('tagline', '').strip()
first_name = first_name.upper().strip()
last_name = string.capwords(last_name.strip())
color_name = 75, 129, 135
color_info = 125, 111, 96
w = image.size[0] / 2
name_width = max(_FONTS['name'].getsize(first_name)[0],
_FONTS['name'].getsize(last_name)[0])
if name_width > w - 60:
font = _FONTS['name_small']
name_y = 400, 510
else:
font = _FONTS['name']
name_y = 460, 590
if ticket['badge_image']:
logo = Image.open(ticket['badge_image']).resize((64, 64))
if logo.mode != 'RGBA':
if logo.mode == 'LA':
logo = logo.convert('RGBA')
else:
if logo.mode != 'RGB':
logo = logo.convert('RGB')
logo = makeColorTransparent(logo,
logo.getpixel((0, 0)),
thresh2=150)
else:
logo = PY_LOGO
rows = [
(first_name, (50, name_y[0]), font, color_name),
(last_name, (50, name_y[1]), font, color_name),
(tagline, (50, 880), _FONTS['info'], color_info),
] + [(logo, (50 + (logo.size[0] + 20) * ix, 700))
for ix in range(ticket.get('experience', 0))]
mirrored = [(row[0], ) + ((w + row[1][0], row[1][1]), ) + row[2:]
for row in rows]
for row in rows + mirrored:
if isinstance(row[0], Image.Image):
image.paste(row[0], row[1], row[0])
else:
t, pos, font, color = row
utils['draw_info'](image, w - 60, t, pos, font, color)
if ticket.get('profile-link'):
qr = QRCode(8, QRErrorCorrectLevel.H)
qr.addData(ticket['profile-link'])
qr.make()
im = qr.makeImage().resize(
(int(18 * 0.03937 * 300), int(18 * 0.03937 * 300)))
image.paste(im, (w + 600, 1030))
return image
