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import qrcode.image.base
from qrcode.compat.pil import Image, ImageDraw
class PilImage(qrcode.image.base.BaseImage):
"""
PIL image builder, default format is PNG.
"""
kind = "PNG"
def new_image(self, **kwargs):
back_color = kwargs.get("back_color", "white")
fill_color = kwargs.get("fill_color", "black")
try:
fill_color = fill_color.lower()
except AttributeError:
pass
try:
back_color = back_color.lower()
except AttributeError:
pass
# L mode (1 mode) color = (r*299 + g*587 + b*114)//1000
if fill_color == "black" and back_color == "white":
mode = "1"
fill_color = 0
if back_color == "white":
back_color = 255
elif back_color == "transparent":
mode = "RGBA"
back_color = None
else:
mode = "RGB"
img = Image.new(mode, (self.pixel_size, self.pixel_size), back_color)
self.fill_color = fill_color
self._idr = ImageDraw.Draw(img)
return img
def drawrect(self, row, col):
box = self.pixel_box(row, col)
self._idr.rectangle(box, fill=self.fill_color)
def save(self, stream, format=None, **kwargs):
kind = kwargs.pop("kind", self.kind)
if format is None:
format = kind
self._img.save(stream, format=format, **kwargs)
def __getattr__(self, name):
return getattr(self._img, name)