def __init__(self, value='Hello World', **kw):
self.value = isUnicodeOrQRList.normalize(value)
for k, v in kw.items():
setattr(self, k, v)
ec_level = getattr(qrencoder.QRErrorCorrectLevel, self.barLevel)
self.__dict__['qr'] = qrencoder.QRCode(self.qrVersion, ec_level)
if isUnicode(self.value):
self.addData(self.value)
elif self.value:
for v in self.value:
self.addData(v)
def draw(self):
g = Group()
g_add = g.add
bar_width, bar_height, x, y = 32 * mm, 32 * mm, 0, 0
g_add(
Rect(x,
y,
bar_width,
bar_height,
fillColor=None,
strokeColor=None,
strokeWidth=0))
bar_fill_color, bar_stroke_width, bar_stroke_color, bar_border = colors.black, 0, None, 4
qrbc = qr.QRCode(2, qr.QRErrorCorrectLevel.M)
qrbc.addData(self.value)
qrbc.make()
module_count = qrbc.getModuleCount()
box_size = min(bar_width, bar_height) / (module_count + bar_border * 2)
offset_x = (bar_width - min(bar_width, bar_height)) / 2
offset_y = (min(bar_width, bar_height) - bar_height) / 2
for r in xrange(module_count):
for c in xrange(module_count):
if (qrbc.isDark(r, c)):
x = (c + bar_border) * box_size
y = (r + bar_border + 1) * box_size
q_rect = Rect(offset_x + x,
offset_y + bar_height - y,
box_size,
box_size,
fillColor=bar_fill_color,
strokeWidth=bar_stroke_width,
strokeColor=bar_stroke_color)
g_add(q_rect)
return g
