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ODT Input: Only use the first image as cover

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ODT Input: Only treat the first image as a cover if it is of suitable
size, instead of any image in the document. See #1224157 (ODT to MOBI - Images - Cover Image will not removed and other images are missed)
This commit is contained in:
Kovid Goyal 2013-09-12 20:30:53 +05:30
parent f1d49a1cb1
commit 187eb4e065
1 changed files with 14 additions and 12 deletions
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26
src/calibre/ebooks/metadata/odt.py
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@ -224,26 +224,28 @@ def read_cover(stream, zin, mi, opfmeta, extract_cover):
cover_href = None
cover_data = None
cover_frame = None
imgnum = 0
for frm in otext.topnode.getElementsByType(odFrame):
img = frm.getElementsByType(odImage)
if len(img) > 0: # there should be only one
i_href = img[0].getAttribute('href')
try:
raw = zin.read(i_href)
except KeyError:
continue
try:
width, height, fmt = identify_data(raw)
except:
continue
else:
if len(img) == 0:
continue
i_href = img[0].getAttribute('href')
try:
raw = zin.read(i_href)
except KeyError:
continue
try:
width, height, fmt = identify_data(raw)
except:
continue
imgnum += 1
if opfmeta and frm.getAttribute('name').lower() == u'opf.cover':
cover_href = i_href
cover_data = (fmt, raw)
cover_frame = frm.getAttribute('name') # could have upper case
break
if cover_href is None and 0.8 <= height/width <= 1.8 and height*width >= 12000:
if cover_href is None and imgnum == 1 and 0.8 <= height/width <= 1.8 and height*width >= 12000:
# Pick the first image as the cover if it is of a suitable size
cover_href = i_href
cover_data = (fmt, raw)
if not opfmeta: