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Revised font-size rationalization as per Kovid's suggestion

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This commit is contained in:
Marshall T. Vandegrift 2008-06-14 01:44:05 -04:00
parent 5dda09d098
commit 582e37ba04
1 changed files with 28 additions and 16 deletions
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42
src/calibre/ebooks/lrf/pylrs/pylrs.py
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@ -553,18 +553,29 @@ class Book(Delegator):
if isinstance(obj, Main):
main = obj
break
pages = [obj for obj in main.contents if isinstance(obj, Page)]
text_blocks = []
for page in pages:
text_blocks.extend(
page.get_all(lambda x: isinstance(x, TextBlock)))
fonts = {}
for tb in text_blocks:
fs = int(tb.textStyle.attrs['fontsize'])
text = tb.get_all(lambda x: isinstance(x, Text))
length = sum(len(t.text) for t in text)
for text in main.get_all(lambda x: isinstance(x, Text)):
fs = base_font_size
ancestor = text.parent
while ancestor:
try:
fs = int(ancestor.attrs['fontsize'])
break
except (AttributeError, KeyError):
pass
try:
fs = int(ancestor.textSettings['fontsize'])
break
except (AttributeError, KeyError):
pass
try:
fs = int(ancestor.textStyle.attrs['fontsize'])
break
except (AttributeError, KeyError):
pass
ancestor = ancestor.parent
length = len(text.text)
fonts[fs] = fonts.get(fs, 0) + length
if not fonts:
print 'WARNING: LRF seems to have no textual content. Cannot rationalize font sizes.'
@ -575,11 +586,7 @@ class Book(Delegator):
def rescale(old):
return str(int(int(old) * factor))
text_styles = set(t.textStyle for t in text_blocks)
for ts in text_styles:
ts.attrs['fontsize'] = rescale(ts.attrs['fontsize'])
ts.attrs['baselineskip'] = rescale(ts.attrs['baselineskip'])
text_blocks = list(main.get_all(lambda x: isinstance(x, TextBlock)))
for tb in text_blocks:
if tb.textSettings.has_key('fontsize'):
tb.textSettings['fontsize'] = rescale(tb.textSettings['fontsize'])
@ -589,6 +596,11 @@ class Book(Delegator):
if span.attrs.has_key('baselineskip'):
span.attrs['baselineskip'] = rescale(span.attrs['baselineskip'])
text_styles = set(tb.textStyle for tb in text_blocks)
for ts in text_styles:
ts.attrs['fontsize'] = rescale(ts.attrs['fontsize'])
ts.attrs['baselineskip'] = rescale(ts.attrs['baselineskip'])
def renderLrs(self, lrsFile, encoding="UTF-8"):
if isinstance(lrsFile, basestring):