def imagevisual(self, image_path, no, udct, nsig, page):
x1, y1, x2, y2 = udct.get(b'signaturebox', (0, 0, 0, 0))
annotation = Image(
Location(x1=x1, y1=y1, x2=x2, y2=y2, page=0),
Appearance(image=image_path),
)
pdfa = annotation.as_pdf_object(identity(), page=None)
pdfar = b'[%d %d %d %d]' % tuple(pdfa.Rect)
pdfao = pdfa.AP.N
visual, nav = self.makeannotation(pdfao, no + 4)
obj = [
self.makeobj(
no + 3, b'''
/Type
/Annot
/Subtype %s
/Rect %s
/AP <</N %d 0 R>>
/F 4
/P %d 0 R
/FT
/Sig
%s
/T(Signature%d)
/V %d 0 R
''' % (b'/Widget' if udct.get(b'sigbutton', False) else b'/Square',
pdfar, no + 4, page, b'/SM(TabletPOSinline)' if udct.get(
b'sigbutton', False) else b'', nsig, nav + 1)),
visual,
]
return b''.join(obj), nav
def _add_explicit_image_annotation(self, a):
"""Add an image annotation using ContentStream commands instead of the
Image type's commands. This is testing that the external XObjects API
works, and that images can be embedded inside other, more complex
annotations.
"""
x1, y1, x2, y2 = 10, 310, 50, 350
location = Location(x1=x1, y1=y1, x2=x2, y2=y2, page=0)
content_stream = ContentStream([
StrokeColor(1, 0, 0),
Rect(x1, y1, x2 - x1, y2 - y1),
Save(),
# The image is inside an outer rectangle
CTM(Image.get_ctm(x1 + 10, y1 + 10, x2 - 10, y2 - 10)),
XObject('MyXObject'),
Restore(),
Stroke(),
])
appearance = Appearance(
appearance_stream=content_stream,
xobjects={
'MyXObject': Image.make_image_xobject(PNG_FILES[0]),
},
)
a.add_annotation(
'square',
location=location,
appearance=appearance,
)
def test_as_pdf_object(self):
x1, y1, x2, y2 = 10, 20, 100, 200
image = Image(
location=Location(x1=x1, y1=y1, x2=x2, y2=y2, page=0),
appearance=Appearance(stroke_width=0, image=PNG_FILES[0]),
)
obj = image.as_pdf_object(identity(), page=None)
# Appearance stream should place the Image correctly
assert obj.AP.N.stream == (
'q 0 0 0 RG 0 w 10 20 90 180 re 90 0 0 180 10 20 cm /Image Do Q')
assert obj.Rect == [x1, y1, x2, y2]
assert obj.AP.N.BBox == [x1, y1, x2, y2]
assert obj.AP.N.Matrix == translate(-x1, -y1)
def test_convert_noop(self):
image, smask = Image.convert_to_compatible_image(
self.grayscale_image,
'PNG',
)
assert image.mode == GRAYSCALE_MODE
assert smask is None
def test_convert_grayscale_with_alpha(self):
image = add_alpha(self.grayscale_image)
assert image.mode == GRAYSCALE_ALPHA_MODE
appropriate_image, smask = Image.convert_to_compatible_image(
image,
'PNG',
)
assert appropriate_image.mode == GRAYSCALE_MODE
assert smask.Width == image.size[0]
assert smask.Height == image.size[1]