mirror of
https://github.com/Kozea/WeasyPrint.git
synced 2024-10-05 00:21:15 +03:00
Include font streams
This commit is contained in:
Guillaume Ayoub
parent
67b104d8ab
commit
5ed840fc7d
@ -67,6 +67,7 @@ class Context(pydyf.Stream):
|
||||
def __init__(self, alpha_states, *args, **kwargs):
|
||||
super().__init__(*args, **kwargs)
|
||||
self._alpha_states = alpha_states
|
||||
self._fonts = {}
|
||||
|
||||
def set_alpha(self, alpha, stroke=False):
|
||||
if alpha not in self._alpha_states:
|
||||
@ -74,30 +75,16 @@ class Context(pydyf.Stream):
|
||||
{'CA' if stroke else 'ca': alpha})
|
||||
self.set_state(alpha)
|
||||
|
||||
def add_font(self, font):
|
||||
font_hash = hash(font)
|
||||
if font_hash not in self._fonts:
|
||||
self._fonts[font_hash] = font
|
||||
|
||||
|
||||
BookmarkSubtree = collections.namedtuple(
|
||||
'BookmarkSubtree', ('label', 'destination', 'children', 'state'))
|
||||
|
||||
|
||||
def _write_pdf_embedded_files(pdf, attachments, url_fetcher):
|
||||
"""Write attachments as embedded files (document attachments)."""
|
||||
pdf_attachments = []
|
||||
for attachment in attachments:
|
||||
pdf_attachment = _write_pdf_attachment(pdf, attachment, url_fetcher)
|
||||
if pdf_attachment is not None:
|
||||
pdf_attachments.append(pdf_attachment)
|
||||
|
||||
if not pdf_attachments:
|
||||
return
|
||||
|
||||
content = pydyf.Dictionary({'Names': pydyf.Array()})
|
||||
for i, pdf_attachment in enumerate(pdf_attachments):
|
||||
content['Names'].append(pydyf.String(f'attachment{i}'))
|
||||
content['Names'].append(pdf_attachment.reference)
|
||||
pdf.add_object(content)
|
||||
pdf.catalog['Names']['EmbeddedFiles'] = content.reference
|
||||
|
||||
|
||||
def _write_pdf_attachment(pdf, attachment, url_fetcher):
|
||||
"""Write an attachment to the PDF stream.
|
||||
|
||||
@ -722,7 +709,6 @@ class Document:
|
||||
matrix = Matrix(scale, 0, 0, -scale, 0, page.height * scale)
|
||||
|
||||
# Links and anchors
|
||||
|
||||
links, anchors = links_and_anchors
|
||||
|
||||
page_width = scale * (
|
||||
@ -752,7 +738,6 @@ class Document:
|
||||
add_hyperlinks(links, anchors, matrix, pdf, pdf_page, pdf_names)
|
||||
|
||||
# Bleed
|
||||
|
||||
bleed = {key: value * 0.75 for key, value in page.bleed.items()}
|
||||
|
||||
trim_left = left + bleed['left']
|
||||
@ -773,7 +758,6 @@ class Document:
|
||||
bleed_left, bleed_top, bleed_right, bleed_bottom])
|
||||
|
||||
# Annotations
|
||||
|
||||
# TODO: splitting a link into multiple independent rectangular
|
||||
# annotations works well for pure links, but rather mediocre for
|
||||
# other annotations and fails completely for transformed (CSS) or
|
||||
@ -804,7 +788,6 @@ class Document:
|
||||
pdf_page['Annots'].append(annot.reference)
|
||||
|
||||
# Bookmarks
|
||||
|
||||
for level, label, (point_x, point_y), state in page.bookmarks:
|
||||
if level > previous_level:
|
||||
# Example: if the previous bookmark is a <h2>, the next
|
||||
@ -842,8 +825,7 @@ class Document:
|
||||
|
||||
PROGRESS_LOGGER.info('Step 7 - Adding PDF metadata')
|
||||
|
||||
# Set PDF information
|
||||
|
||||
# PDF information
|
||||
if self.metadata.title:
|
||||
pdf.info['Title'] = pydyf.String(self.metadata.title)
|
||||
if self.metadata.authors:
|
||||
@ -864,31 +846,57 @@ class Document:
|
||||
pdf.info['ModDate'] = pydyf.String(
|
||||
_w3c_date_to_pdf(self.metadata.modified, 'modified'))
|
||||
|
||||
# Add attachments and embedded files
|
||||
|
||||
# Write extra PDF metadata only when there is a least one from:
|
||||
# - attachments in metadata
|
||||
# - attachments as function parameters
|
||||
# - attachments as PDF links
|
||||
# - finisher function to perform post-processing
|
||||
# - bleed boxes
|
||||
# TODO: handle this with pydyf
|
||||
# condition = (
|
||||
# self.metadata.attachments or
|
||||
# attachments or
|
||||
# any(attachment_links) or
|
||||
# finisher or
|
||||
# any(any(page.bleed.values()) for page in self.pages))
|
||||
# if condition:
|
||||
# write_pdf_metadata(
|
||||
# file_obj, scale, self.url_fetcher,
|
||||
# self.metadata.attachments + (attachments or []),
|
||||
# attachment_links, self.pages, finisher)
|
||||
|
||||
# Add embedded files
|
||||
|
||||
# Embedded files
|
||||
attachments = self.metadata.attachments + (attachments or [])
|
||||
_write_pdf_embedded_files(pdf, attachments, self.url_fetcher)
|
||||
pdf_attachments = []
|
||||
for attachment in attachments:
|
||||
pdf_attachment = _write_pdf_attachment(
|
||||
pdf, attachment, self.url_fetcher)
|
||||
if pdf_attachment is not None:
|
||||
pdf_attachments.append(pdf_attachment)
|
||||
if pdf_attachments:
|
||||
content = pydyf.Dictionary({'Names': pydyf.Array()})
|
||||
for i, pdf_attachment in enumerate(pdf_attachments):
|
||||
content['Names'].append(pydyf.String(f'attachment{i}'))
|
||||
content['Names'].append(pdf_attachment.reference)
|
||||
pdf.add_object(content)
|
||||
pdf.catalog['Names']['EmbeddedFiles'] = content.reference
|
||||
|
||||
# Embeded fonts
|
||||
resources['Font'] = pydyf.Dictionary()
|
||||
for font_hash, font in stream._fonts.items():
|
||||
compressed = zlib.compressobj().compress(font)
|
||||
font_extra = pydyf.Dictionary({
|
||||
'Filter': '/FlateDecode',
|
||||
'Length1': len(font),
|
||||
})
|
||||
font_stream = pydyf.Stream([compressed], font_extra)
|
||||
pdf.add_object(font_stream)
|
||||
|
||||
font_dictionary = pydyf.Dictionary({
|
||||
'Type': '/Font',
|
||||
'Subtype': '/TrueType',
|
||||
'BaseFont': '/AAAAAA+Liberation',
|
||||
'FirstChar': 32,
|
||||
'LastChar': 99,
|
||||
'Encoding': '/WinAnsiEncoding',
|
||||
'Widths': pydyf.Array((99 - 32 + 1) * [0]),
|
||||
'FontDescriptor': pydyf.Dictionary({
|
||||
'FontName': pydyf.String('Liberation'),
|
||||
'FontFamily': '/AAAAAA+Liberation',
|
||||
'Flags': 32,
|
||||
'FontBBox': pydyf.Array([-543, -303, 1278, 981]),
|
||||
'ItalicAngle': 0,
|
||||
'Ascent': 891,
|
||||
'Descent': -216,
|
||||
'CapHeight': 981,
|
||||
'StemV': 80,
|
||||
'StemH': 80,
|
||||
'FontFile': font_stream.reference,
|
||||
})
|
||||
})
|
||||
pdf.add_object(font_dictionary)
|
||||
resources['Font'][str(font_hash)] = font_dictionary.reference
|
||||
|
||||
if finisher:
|
||||
finisher(self, pdf)
|
||||
|
||||
@ -1303,6 +1303,7 @@ def show_first_line(context, textbox, text_overflow):
|
||||
data = harfbuzz.hb_blob_get_data(harfbuzz.hb_face_reference_blob(
|
||||
harfbuzz.hb_font_get_face(hb_font)), length)
|
||||
font = ffi.unpack(data, int(length[0]))
|
||||
context.add_font(font)
|
||||
if run.next == ffi.NULL:
|
||||
break
|
||||
else:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user