def _qr_xobject(self):
qr = qrcode.QRCode()
qr.add_data(self.url)
qr.make()
img = qr.make_image(image_factory=PdfStreamQRImage)
command_stream = img.render_command_stream()
bbox_size = (qr.modules_count + 2 * qr.border) * qr.box_size
qr_xobj = init_xobject_dictionary(command_stream, bbox_size, bbox_size)
qr_xobj.compress()
return self.writer.add_object(qr_xobj), bbox_size
def as_form_xobject(self) -> StreamObject:
"""
Render the object to a form XObject to be referenced by another
content stream. See ISO 32000-1, § 8.8.
*Note:* Even if :attr:`writer` is set, the resulting form XObject will
not be registered. This is left up to the caller.
:return:
A :class:`~.generic.StreamObject` instance representing
the resulting form XObject.
"""
from pyhanko.pdf_utils.writer import init_xobject_dictionary
command_stream = self.render()
return init_xobject_dictionary(
command_stream=command_stream, box_width=self.box.width,
box_height=self.box.height,
resources=self._resources.as_pdf_object()
)