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PDF Output: Fix incorrect rendering if the input document has too many anchors. Fixes #1854345 [too many ids in input causes zoomed out converted pdf](https://bugs.launchpad.net/calibre/+bug/1854345)

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Kovid Goyal 2019-11-28 17:38:13 +05:30
parent 163b2dfd2d
commit 08efb46599
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1 changed files with 8 additions and 1 deletions
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src/calibre/ebooks/pdf/html_writer.py
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@ -13,7 +13,7 @@ import signal
import sys import sys
from collections import namedtuple from collections import namedtuple
from io import BytesIO from io import BytesIO
from itertools import repeat from itertools import count, repeat
from operator import attrgetter, itemgetter from operator import attrgetter, itemgetter
from html5_parser import parse from html5_parser import parse
@ -422,14 +422,21 @@ def add_anchors_markup(root, uuid, anchors):
) )
div.text = '\n\n' div.text = '\n\n'
body.append(div) body.append(div)
c = count()
def a(anchor): def a(anchor):
num = next(c)
a = div.makeelement( a = div.makeelement(
XHTML('a'), href='#' + anchor, XHTML('a'), href='#' + anchor,
style='min-width: 10px !important; min-height: 10px !important; border: solid 1px !important;' style='min-width: 10px !important; min-height: 10px !important; border: solid 1px !important;'
) )
a.text = a.tail = ' ' a.text = a.tail = ' '
if num % 8 == 0:
# prevent too many anchors on a line as it causes chromium to
# rescale the viewport
a.tail = '\n'
div.append(a) div.append(a)
a.count = 0
tuple(map(a, anchors)) tuple(map(a, anchors))
a(uuid) a(uuid)