mirror of
https://github.com/kovidgoyal/calibre.git
synced 2025-07-08 18:54:09 -04:00
Refactor styles code into its own module
This commit is contained in:
Kovid Goyal
parent
957ce7604e
commit
51a08167db
@ -11,14 +11,10 @@ import re
|
||||
from lxml import etree
|
||||
from lxml.builder import ElementMaker
|
||||
|
||||
from calibre.ebooks import parse_css_length
|
||||
from calibre.ebooks.docx.names import namespaces
|
||||
from calibre.ebooks.docx.writer.utils import convert_color, int_or_zero
|
||||
from calibre.ebooks.docx.styles import w, BlockStyle, TextStyle
|
||||
from calibre.ebooks.oeb.stylizer import Stylizer as Sz, Style as St
|
||||
from calibre.ebooks.oeb.base import XPath, barename
|
||||
from tinycss.css21 import CSS21Parser
|
||||
|
||||
css_parser = CSS21Parser()
|
||||
|
||||
class Style(St):
|
||||
|
||||
@ -44,267 +40,6 @@ class Stylizer(Sz):
|
||||
except KeyError:
|
||||
return Style(element, self)
|
||||
|
||||
border_edges = ('left', 'top', 'right', 'bottom')
|
||||
border_props = ('padding_%s', 'border_%s_width', 'border_%s_style', 'border_%s_color')
|
||||
|
||||
def parse_css_font_family(raw):
|
||||
decl, errs = css_parser.parse_style_attr('font-family:' + raw)
|
||||
if decl:
|
||||
for token in decl[0].value:
|
||||
if token.type in 'STRING IDENT':
|
||||
val = token.value
|
||||
if val == 'inherit':
|
||||
break
|
||||
yield val
|
||||
|
||||
def css_font_family_to_docx(raw):
|
||||
generic = {'serif':'Cambria', 'sansserif':'Candara', 'sans-serif':'Candara', 'fantasy':'Comic Sans', 'cursive':'Segoe Script'}
|
||||
for ff in parse_css_font_family(raw):
|
||||
return generic.get(ff.lower(), ff)
|
||||
|
||||
class DOCXStyle(object):
|
||||
|
||||
ALL_PROPS = ()
|
||||
|
||||
def __init__(self):
|
||||
self.update_hash()
|
||||
|
||||
def __hash__(self):
|
||||
return self._hash
|
||||
|
||||
def update_hash(self):
|
||||
self._hash = hash(tuple(
|
||||
getattr(self, x) for x in self.ALL_PROPS))
|
||||
|
||||
def __eq__(self, other):
|
||||
return hash(self) == hash(other)
|
||||
|
||||
def __ne__(self, other):
|
||||
return not self == other
|
||||
|
||||
def __repr__(self):
|
||||
return etree.tostring(self.serialize(etree.Element(self.__class__.__name__, nsmap={'w':namespaces['w']})), pretty_print=True)
|
||||
__str__ = __repr__
|
||||
|
||||
def serialize_borders(self, bdr):
|
||||
for edge in border_edges:
|
||||
e = bdr.makeelement(w(edge))
|
||||
padding = getattr(self, 'padding_' + edge)
|
||||
if padding > 0:
|
||||
e.set(w('space'), str(padding))
|
||||
width = getattr(self, 'border_%s_width' % edge)
|
||||
bstyle = getattr(self, 'border_%s_style' % edge)
|
||||
if width > 0 and bstyle != 'none':
|
||||
e.set(w('val'), bstyle)
|
||||
e.set(w('sz'), str(width))
|
||||
e.set(w('color'), getattr(self, 'border_%s_color' % edge))
|
||||
if e.attrib:
|
||||
bdr.append(e)
|
||||
return bdr
|
||||
|
||||
LINE_STYLES = {
|
||||
'none': 'none',
|
||||
'hidden': 'none',
|
||||
'dotted': 'dotted',
|
||||
'dashed': 'dashed',
|
||||
'solid': 'single',
|
||||
'double': 'double',
|
||||
'groove': 'threeDEngrave',
|
||||
'ridge': 'threeDEmboss',
|
||||
'inset': 'inset',
|
||||
'outset': 'outset',
|
||||
}
|
||||
|
||||
def w(x):
|
||||
return '{%s}%s' % (namespaces['w'], x)
|
||||
|
||||
class TextStyle(DOCXStyle):
|
||||
|
||||
ALL_PROPS = ('font_family', 'font_size', 'bold', 'italic', 'color',
|
||||
'background_color', 'underline', 'strike', 'dstrike', 'caps',
|
||||
'shadow', 'small_caps', 'spacing', 'vertical_align') + tuple(
|
||||
x%edge for edge in border_edges for x in border_props)
|
||||
|
||||
def __init__(self, css):
|
||||
self.font_family = css_font_family_to_docx(css['font-family'])
|
||||
try:
|
||||
self.font_size = max(0, int(float(css['font-size']) * 2)) # stylizer normalizes all font sizes into pts
|
||||
except (ValueError, TypeError, AttributeError):
|
||||
self.font_size = None
|
||||
|
||||
fw = css['font-weight']
|
||||
self.bold = fw.lower() in {'bold', 'bolder'} or int_or_zero(fw) >= 700
|
||||
self.italic = css['font-style'].lower() in {'italic', 'oblique'}
|
||||
self.color = convert_color(css['color'])
|
||||
self.background_color = convert_color(css.backgroundColor)
|
||||
td = set((css.effective_text_decoration or '').split())
|
||||
self.underline = 'underline' in td
|
||||
self.dstrike = 'line-through' in td and 'overline' in td
|
||||
self.strike = not self.dstrike and 'line-through' in td
|
||||
self.text_transform = css['text-transform'] # TODO: If lowercase or capitalize, transform the actual text
|
||||
self.caps = self.text_transform == 'uppercase'
|
||||
self.small_caps = css['font-variant'].lower() in {'small-caps', 'smallcaps'}
|
||||
self.shadow = css['text-shadow'] not in {'none', None}
|
||||
try:
|
||||
self.spacing = int(float(css['letter-spacing']) * 20)
|
||||
except (ValueError, TypeError, AttributeError):
|
||||
self.spacing = None
|
||||
self.vertical_align = css['vertical-align']
|
||||
for edge in border_edges:
|
||||
# In DOCX padding can only be a positive integer
|
||||
setattr(self, 'padding_' + edge, max(0, int(css['padding-' + edge])))
|
||||
val = min(96, max(2, int({'thin':0.2, 'medium':1, 'thick':2}.get(css['border-%s-width' % edge], 0) * 8)))
|
||||
setattr(self, 'border_%s_width' % edge, val)
|
||||
setattr(self, 'border_%s_color' % edge, convert_color(css['border-%s-color' % edge]))
|
||||
setattr(self, 'border_%s_style' % edge, LINE_STYLES.get(css['border-%s-style' % edge].lower(), 'none'))
|
||||
|
||||
DOCXStyle.__init__(self)
|
||||
|
||||
def serialize(self, style):
|
||||
style.append(style.makeelement(w('rFonts'), **{
|
||||
w(k):self.font_family for k in 'ascii cs eastAsia hAnsi'.split()}))
|
||||
for suffix in ('', 'Cs'):
|
||||
style.append(style.makeelement(w('sz' + suffix), **{w('val'):str(self.font_size)}))
|
||||
style.append(style.makeelement(w('b' + suffix), **{w('val'):('on' if self.bold else 'off')}))
|
||||
style.append(style.makeelement(w('i' + suffix), **{w('val'):('on' if self.italic else 'off')}))
|
||||
if self.color:
|
||||
style.append(style.makeelement(w('color'), **{w('val'):str(self.color)}))
|
||||
if self.background_color:
|
||||
style.append(style.makeelement(w('shd'), **{w('val'):str(self.background_color)}))
|
||||
if self.underline:
|
||||
style.append(style.makeelement(w('u'), **{w('val'):'single'}))
|
||||
if self.dstrike:
|
||||
style.append(style.makeelement(w('dstrike'), **{w('val'):'on'}))
|
||||
elif self.strike:
|
||||
style.append(style.makeelement(w('strike'), **{w('val'):'on'}))
|
||||
if self.caps:
|
||||
style.append(style.makeelement(w('caps'), **{w('val'):'on'}))
|
||||
if self.small_caps:
|
||||
style.append(style.makeelement(w('smallCaps'), **{w('val'):'on'}))
|
||||
if self.shadow:
|
||||
style.append(style.makeelement(w('shadow'), **{w('val'):'on'}))
|
||||
if self.spacing is not None:
|
||||
style.append(style.makeelement(w('spacing'), **{w('val'):str(self.spacing)}))
|
||||
if isinstance(self.vertical_align, (int, float)):
|
||||
val = int(self.vertical_align * 2)
|
||||
style.append(style.makeelement(w('position'), **{w('val'):str(val)}))
|
||||
elif isinstance(self.vertical_align, basestring):
|
||||
val = {'top':'superscript', 'text-top':'superscript', 'sup':'superscript', 'bottom':'subscript', 'text-bottom':'subscript', 'sub':'subscript'}.get(
|
||||
self.vertical_align.lower())
|
||||
if val:
|
||||
style.append(style.makeelement(w('vertAlign'), **{w('val'):val}))
|
||||
|
||||
bdr = self.serialize_borders(style.makeelement(w('bdr')))
|
||||
if len(bdr):
|
||||
style.append(bdr)
|
||||
|
||||
return style
|
||||
|
||||
|
||||
class BlockStyle(DOCXStyle):
|
||||
|
||||
ALL_PROPS = tuple(
|
||||
'text_align page_break_before keep_lines keep_next css_text_indent text_indent line_height css_line_height background_color'.split()
|
||||
+ ['margin_' + edge for edge in border_edges]
|
||||
+ ['css_margin_' + edge for edge in border_edges]
|
||||
+ [x%edge for edge in border_edges for x in border_props]
|
||||
)
|
||||
|
||||
def __init__(self, css, html_block, is_first_block=False):
|
||||
self.page_break_before = html_block.tag.endswith('}body') or (not is_first_block and css['page-break-before'] == 'always')
|
||||
self.keep_lines = css['page-break-inside'] == 'avoid'
|
||||
# TODO: Ensure that only the last docx block for this html block has the correct value for keep next
|
||||
self.keep_next = css['page-break-after'] == 'avoid'
|
||||
for edge in border_edges:
|
||||
# In DOCX padding can only be a positive integer
|
||||
setattr(self, 'padding_' + edge, max(0, int(css['padding-' + edge])))
|
||||
# In DOCX margin must be a positive integer in twips (twentieth of a point)
|
||||
setattr(self, 'margin_' + edge, max(0, int(css['margin-' + edge] * 20)))
|
||||
setattr(self, 'css_margin_' + edge, css._style.get('margin-' + edge, ''))
|
||||
val = min(96, max(2, int({'thin':0.2, 'medium':1, 'thick':2}.get(css['border-%s-width' % edge], 0) * 8)))
|
||||
setattr(self, 'border_%s_width' % edge, val)
|
||||
setattr(self, 'border_%s_color' % edge, convert_color(css['border-%s-color' % edge]))
|
||||
setattr(self, 'border_%s_style' % edge, LINE_STYLES.get(css['border-%s-style' % edge].lower(), 'none'))
|
||||
self.text_indent = max(0, int(css['text-indent'] * 20))
|
||||
self.css_text_indent = css._get('text-indent')
|
||||
self.line_height = max(0, int(css['line-height'] * 20))
|
||||
self.css_line_height = css._get('line-height')
|
||||
self.background_color = convert_color(css['background-color'])
|
||||
self.text_align = {'start':'left', 'left':'left', 'end':'right', 'right':'right', 'center':'center', 'justify':'both', 'centre':'center'}.get(
|
||||
css['text-align'].lower(), 'left')
|
||||
|
||||
DOCXStyle.__init__(self)
|
||||
|
||||
def serialize(self, style):
|
||||
spacing = style.makeelement(w('spacing'))
|
||||
for edge, attr in {'top':'before', 'bottom':'after'}.iteritems():
|
||||
css_val, css_unit = parse_css_length(getattr(self, 'css_margin_' + edge))
|
||||
if css_unit in ('em', 'ex'):
|
||||
lines = max(0, int(css_val * (50 if css_unit == 'ex' else 100)))
|
||||
if lines > 0:
|
||||
spacing.set(w(attr + 'Lines'), str(lines))
|
||||
else:
|
||||
val = getattr(self, 'margin_' + edge)
|
||||
if val > 0:
|
||||
spacing.set(w(attr), str(val))
|
||||
if self.css_line_height != 'normal':
|
||||
try:
|
||||
css_val, css_unit = float(self.css_line_height), 'ratio'
|
||||
except Exception:
|
||||
css_val, css_unit = parse_css_length(self.css_line_height)
|
||||
if css_unit in {'em', 'ex', '%', 'ratio'}:
|
||||
mult = {'ex':0.5, '%':0.01}.get(css_unit, 1)
|
||||
val = int(css_val * 240 * mult)
|
||||
spacing.set(w('line'), str(val))
|
||||
else:
|
||||
spacing.set(w('line'), str(self.line_height))
|
||||
spacing.set(w('lineRule', 'exactly'))
|
||||
|
||||
if spacing.attrib:
|
||||
style.append(spacing)
|
||||
|
||||
ind = style.makeelement(w('ind'))
|
||||
for edge in ('left', 'right'):
|
||||
css_val, css_unit = parse_css_length(getattr(self, 'css_margin_' + edge))
|
||||
if css_unit in ('em', 'ex'):
|
||||
chars = max(0, int(css_val * (50 if css_unit == 'ex' else 100)))
|
||||
if chars > 0:
|
||||
ind.set(w(edge + 'Chars'), str(chars))
|
||||
else:
|
||||
val = getattr(self, 'margin_' + edge)
|
||||
if val > 0:
|
||||
ind.set(w(attr), str(val))
|
||||
css_val, css_unit = parse_css_length(self.css_text_indent)
|
||||
if css_unit in ('em', 'ex'):
|
||||
chars = max(0, int(css_val * (50 if css_unit == 'ex' else 100)))
|
||||
if chars > 0:
|
||||
ind.set('firstLineChars', str(chars))
|
||||
else:
|
||||
val = self.text_indent
|
||||
if val > 0:
|
||||
ind.set('firstLine', str(val))
|
||||
if ind.attrib:
|
||||
style.append(ind)
|
||||
|
||||
if self.background_color:
|
||||
shd = style.makeelement(w('shd'))
|
||||
style.append(shd)
|
||||
shd.set(w('val'), 'clear'), shd.set(w('fill'), self.background_color), shd.set(w('color'), 'auto')
|
||||
|
||||
pbdr = self.serialize_borders(style.makeelement(w('pBdr')))
|
||||
if len(pbdr):
|
||||
style.append(pbdr)
|
||||
jc = style.makeelement(w('jc'))
|
||||
jc.set(w('val'), self.text_align)
|
||||
style.append(jc)
|
||||
if self.page_break_before:
|
||||
style.append(style.makeelement(w('pageBreakBefore'), **{w('val'):'on'}))
|
||||
if self.keep_lines:
|
||||
style.append(style.makeelement(w('keepLines'), **{w('val'):'on'}))
|
||||
if self.keep_next:
|
||||
style.append(style.makeelement(w('keepNext'), **{w('val'):'on'}))
|
||||
return style
|
||||
|
||||
|
||||
class LineBreak(object):
|
||||
|
||||
|
||||
280
src/calibre/ebooks/docx/writer/styles.py
Normal file
280
src/calibre/ebooks/docx/writer/styles.py
Normal file
@ -0,0 +1,280 @@
|
||||
#!/usr/bin/env python2
|
||||
# vim:fileencoding=utf-8
|
||||
from __future__ import (unicode_literals, division, absolute_import,
|
||||
print_function)
|
||||
|
||||
__license__ = 'GPL v3'
|
||||
__copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>'
|
||||
|
||||
from lxml import etree
|
||||
|
||||
from calibre.ebooks import parse_css_length
|
||||
from calibre.ebooks.docx.names import namespaces
|
||||
from calibre.ebooks.docx.writer.utils import convert_color, int_or_zero
|
||||
from tinycss.css21 import CSS21Parser
|
||||
|
||||
css_parser = CSS21Parser()
|
||||
|
||||
border_edges = ('left', 'top', 'right', 'bottom')
|
||||
border_props = ('padding_%s', 'border_%s_width', 'border_%s_style', 'border_%s_color')
|
||||
|
||||
def parse_css_font_family(raw):
|
||||
decl, errs = css_parser.parse_style_attr('font-family:' + raw)
|
||||
if decl:
|
||||
for token in decl[0].value:
|
||||
if token.type in 'STRING IDENT':
|
||||
val = token.value
|
||||
if val == 'inherit':
|
||||
break
|
||||
yield val
|
||||
|
||||
def css_font_family_to_docx(raw):
|
||||
generic = {'serif':'Cambria', 'sansserif':'Candara', 'sans-serif':'Candara', 'fantasy':'Comic Sans', 'cursive':'Segoe Script'}
|
||||
for ff in parse_css_font_family(raw):
|
||||
return generic.get(ff.lower(), ff)
|
||||
|
||||
class DOCXStyle(object):
|
||||
|
||||
ALL_PROPS = ()
|
||||
|
||||
def __init__(self):
|
||||
self.update_hash()
|
||||
|
||||
def __hash__(self):
|
||||
return self._hash
|
||||
|
||||
def update_hash(self):
|
||||
self._hash = hash(tuple(
|
||||
getattr(self, x) for x in self.ALL_PROPS))
|
||||
|
||||
def __eq__(self, other):
|
||||
return hash(self) == hash(other)
|
||||
|
||||
def __ne__(self, other):
|
||||
return not self == other
|
||||
|
||||
def __repr__(self):
|
||||
return etree.tostring(self.serialize(etree.Element(self.__class__.__name__, nsmap={'w':namespaces['w']})), pretty_print=True)
|
||||
__str__ = __repr__
|
||||
|
||||
def serialize_borders(self, bdr):
|
||||
for edge in border_edges:
|
||||
e = bdr.makeelement(w(edge))
|
||||
padding = getattr(self, 'padding_' + edge)
|
||||
if padding > 0:
|
||||
e.set(w('space'), str(padding))
|
||||
width = getattr(self, 'border_%s_width' % edge)
|
||||
bstyle = getattr(self, 'border_%s_style' % edge)
|
||||
if width > 0 and bstyle != 'none':
|
||||
e.set(w('val'), bstyle)
|
||||
e.set(w('sz'), str(width))
|
||||
e.set(w('color'), getattr(self, 'border_%s_color' % edge))
|
||||
if e.attrib:
|
||||
bdr.append(e)
|
||||
return bdr
|
||||
|
||||
LINE_STYLES = {
|
||||
'none': 'none',
|
||||
'hidden': 'none',
|
||||
'dotted': 'dotted',
|
||||
'dashed': 'dashed',
|
||||
'solid': 'single',
|
||||
'double': 'double',
|
||||
'groove': 'threeDEngrave',
|
||||
'ridge': 'threeDEmboss',
|
||||
'inset': 'inset',
|
||||
'outset': 'outset',
|
||||
}
|
||||
|
||||
def w(x):
|
||||
return '{%s}%s' % (namespaces['w'], x)
|
||||
|
||||
class TextStyle(DOCXStyle):
|
||||
|
||||
ALL_PROPS = ('font_family', 'font_size', 'bold', 'italic', 'color',
|
||||
'background_color', 'underline', 'strike', 'dstrike', 'caps',
|
||||
'shadow', 'small_caps', 'spacing', 'vertical_align') + tuple(
|
||||
x%edge for edge in border_edges for x in border_props)
|
||||
|
||||
def __init__(self, css):
|
||||
self.font_family = css_font_family_to_docx(css['font-family'])
|
||||
try:
|
||||
self.font_size = max(0, int(float(css['font-size']) * 2)) # stylizer normalizes all font sizes into pts
|
||||
except (ValueError, TypeError, AttributeError):
|
||||
self.font_size = None
|
||||
|
||||
fw = css['font-weight']
|
||||
self.bold = fw.lower() in {'bold', 'bolder'} or int_or_zero(fw) >= 700
|
||||
self.italic = css['font-style'].lower() in {'italic', 'oblique'}
|
||||
self.color = convert_color(css['color'])
|
||||
self.background_color = convert_color(css.backgroundColor)
|
||||
td = set((css.effective_text_decoration or '').split())
|
||||
self.underline = 'underline' in td
|
||||
self.dstrike = 'line-through' in td and 'overline' in td
|
||||
self.strike = not self.dstrike and 'line-through' in td
|
||||
self.text_transform = css['text-transform'] # TODO: If lowercase or capitalize, transform the actual text
|
||||
self.caps = self.text_transform == 'uppercase'
|
||||
self.small_caps = css['font-variant'].lower() in {'small-caps', 'smallcaps'}
|
||||
self.shadow = css['text-shadow'] not in {'none', None}
|
||||
try:
|
||||
self.spacing = int(float(css['letter-spacing']) * 20)
|
||||
except (ValueError, TypeError, AttributeError):
|
||||
self.spacing = None
|
||||
self.vertical_align = css['vertical-align']
|
||||
for edge in border_edges:
|
||||
# In DOCX padding can only be a positive integer
|
||||
setattr(self, 'padding_' + edge, max(0, int(css['padding-' + edge])))
|
||||
val = min(96, max(2, int({'thin':0.2, 'medium':1, 'thick':2}.get(css['border-%s-width' % edge], 0) * 8)))
|
||||
setattr(self, 'border_%s_width' % edge, val)
|
||||
setattr(self, 'border_%s_color' % edge, convert_color(css['border-%s-color' % edge]))
|
||||
setattr(self, 'border_%s_style' % edge, LINE_STYLES.get(css['border-%s-style' % edge].lower(), 'none'))
|
||||
|
||||
DOCXStyle.__init__(self)
|
||||
|
||||
def serialize(self, style):
|
||||
style.append(style.makeelement(w('rFonts'), **{
|
||||
w(k):self.font_family for k in 'ascii cs eastAsia hAnsi'.split()}))
|
||||
for suffix in ('', 'Cs'):
|
||||
style.append(style.makeelement(w('sz' + suffix), **{w('val'):str(self.font_size)}))
|
||||
style.append(style.makeelement(w('b' + suffix), **{w('val'):('on' if self.bold else 'off')}))
|
||||
style.append(style.makeelement(w('i' + suffix), **{w('val'):('on' if self.italic else 'off')}))
|
||||
if self.color:
|
||||
style.append(style.makeelement(w('color'), **{w('val'):str(self.color)}))
|
||||
if self.background_color:
|
||||
style.append(style.makeelement(w('shd'), **{w('val'):str(self.background_color)}))
|
||||
if self.underline:
|
||||
style.append(style.makeelement(w('u'), **{w('val'):'single'}))
|
||||
if self.dstrike:
|
||||
style.append(style.makeelement(w('dstrike'), **{w('val'):'on'}))
|
||||
elif self.strike:
|
||||
style.append(style.makeelement(w('strike'), **{w('val'):'on'}))
|
||||
if self.caps:
|
||||
style.append(style.makeelement(w('caps'), **{w('val'):'on'}))
|
||||
if self.small_caps:
|
||||
style.append(style.makeelement(w('smallCaps'), **{w('val'):'on'}))
|
||||
if self.shadow:
|
||||
style.append(style.makeelement(w('shadow'), **{w('val'):'on'}))
|
||||
if self.spacing is not None:
|
||||
style.append(style.makeelement(w('spacing'), **{w('val'):str(self.spacing)}))
|
||||
if isinstance(self.vertical_align, (int, float)):
|
||||
val = int(self.vertical_align * 2)
|
||||
style.append(style.makeelement(w('position'), **{w('val'):str(val)}))
|
||||
elif isinstance(self.vertical_align, basestring):
|
||||
val = {'top':'superscript', 'text-top':'superscript', 'sup':'superscript', 'bottom':'subscript', 'text-bottom':'subscript', 'sub':'subscript'}.get(
|
||||
self.vertical_align.lower())
|
||||
if val:
|
||||
style.append(style.makeelement(w('vertAlign'), **{w('val'):val}))
|
||||
|
||||
bdr = self.serialize_borders(style.makeelement(w('bdr')))
|
||||
if len(bdr):
|
||||
style.append(bdr)
|
||||
|
||||
return style
|
||||
|
||||
|
||||
class BlockStyle(DOCXStyle):
|
||||
|
||||
ALL_PROPS = tuple(
|
||||
'text_align page_break_before keep_lines keep_next css_text_indent text_indent line_height css_line_height background_color'.split()
|
||||
+ ['margin_' + edge for edge in border_edges]
|
||||
+ ['css_margin_' + edge for edge in border_edges]
|
||||
+ [x%edge for edge in border_edges for x in border_props]
|
||||
)
|
||||
|
||||
def __init__(self, css, html_block, is_first_block=False):
|
||||
self.page_break_before = html_block.tag.endswith('}body') or (not is_first_block and css['page-break-before'] == 'always')
|
||||
self.keep_lines = css['page-break-inside'] == 'avoid'
|
||||
# TODO: Ensure that only the last docx block for this html block has the correct value for keep next
|
||||
self.keep_next = css['page-break-after'] == 'avoid'
|
||||
for edge in border_edges:
|
||||
# In DOCX padding can only be a positive integer
|
||||
setattr(self, 'padding_' + edge, max(0, int(css['padding-' + edge])))
|
||||
# In DOCX margin must be a positive integer in twips (twentieth of a point)
|
||||
setattr(self, 'margin_' + edge, max(0, int(css['margin-' + edge] * 20)))
|
||||
setattr(self, 'css_margin_' + edge, css._style.get('margin-' + edge, ''))
|
||||
val = min(96, max(2, int({'thin':0.2, 'medium':1, 'thick':2}.get(css['border-%s-width' % edge], 0) * 8)))
|
||||
setattr(self, 'border_%s_width' % edge, val)
|
||||
setattr(self, 'border_%s_color' % edge, convert_color(css['border-%s-color' % edge]))
|
||||
setattr(self, 'border_%s_style' % edge, LINE_STYLES.get(css['border-%s-style' % edge].lower(), 'none'))
|
||||
self.text_indent = max(0, int(css['text-indent'] * 20))
|
||||
self.css_text_indent = css._get('text-indent')
|
||||
self.line_height = max(0, int(css['line-height'] * 20))
|
||||
self.css_line_height = css._get('line-height')
|
||||
self.background_color = convert_color(css['background-color'])
|
||||
self.text_align = {'start':'left', 'left':'left', 'end':'right', 'right':'right', 'center':'center', 'justify':'both', 'centre':'center'}.get(
|
||||
css['text-align'].lower(), 'left')
|
||||
|
||||
DOCXStyle.__init__(self)
|
||||
|
||||
def serialize(self, style):
|
||||
spacing = style.makeelement(w('spacing'))
|
||||
for edge, attr in {'top':'before', 'bottom':'after'}.iteritems():
|
||||
css_val, css_unit = parse_css_length(getattr(self, 'css_margin_' + edge))
|
||||
if css_unit in ('em', 'ex'):
|
||||
lines = max(0, int(css_val * (50 if css_unit == 'ex' else 100)))
|
||||
if lines > 0:
|
||||
spacing.set(w(attr + 'Lines'), str(lines))
|
||||
else:
|
||||
val = getattr(self, 'margin_' + edge)
|
||||
if val > 0:
|
||||
spacing.set(w(attr), str(val))
|
||||
if self.css_line_height != 'normal':
|
||||
try:
|
||||
css_val, css_unit = float(self.css_line_height), 'ratio'
|
||||
except Exception:
|
||||
css_val, css_unit = parse_css_length(self.css_line_height)
|
||||
if css_unit in {'em', 'ex', '%', 'ratio'}:
|
||||
mult = {'ex':0.5, '%':0.01}.get(css_unit, 1)
|
||||
val = int(css_val * 240 * mult)
|
||||
spacing.set(w('line'), str(val))
|
||||
else:
|
||||
spacing.set(w('line'), str(self.line_height))
|
||||
spacing.set(w('lineRule', 'exactly'))
|
||||
|
||||
if spacing.attrib:
|
||||
style.append(spacing)
|
||||
|
||||
ind = style.makeelement(w('ind'))
|
||||
for edge in ('left', 'right'):
|
||||
css_val, css_unit = parse_css_length(getattr(self, 'css_margin_' + edge))
|
||||
if css_unit in ('em', 'ex'):
|
||||
chars = max(0, int(css_val * (50 if css_unit == 'ex' else 100)))
|
||||
if chars > 0:
|
||||
ind.set(w(edge + 'Chars'), str(chars))
|
||||
else:
|
||||
val = getattr(self, 'margin_' + edge)
|
||||
if val > 0:
|
||||
ind.set(w(attr), str(val))
|
||||
css_val, css_unit = parse_css_length(self.css_text_indent)
|
||||
if css_unit in ('em', 'ex'):
|
||||
chars = max(0, int(css_val * (50 if css_unit == 'ex' else 100)))
|
||||
if chars > 0:
|
||||
ind.set('firstLineChars', str(chars))
|
||||
else:
|
||||
val = self.text_indent
|
||||
if val > 0:
|
||||
ind.set('firstLine', str(val))
|
||||
if ind.attrib:
|
||||
style.append(ind)
|
||||
|
||||
if self.background_color:
|
||||
shd = style.makeelement(w('shd'))
|
||||
style.append(shd)
|
||||
shd.set(w('val'), 'clear'), shd.set(w('fill'), self.background_color), shd.set(w('color'), 'auto')
|
||||
|
||||
pbdr = self.serialize_borders(style.makeelement(w('pBdr')))
|
||||
if len(pbdr):
|
||||
style.append(pbdr)
|
||||
jc = style.makeelement(w('jc'))
|
||||
jc.set(w('val'), self.text_align)
|
||||
style.append(jc)
|
||||
if self.page_break_before:
|
||||
style.append(style.makeelement(w('pageBreakBefore'), **{w('val'):'on'}))
|
||||
if self.keep_lines:
|
||||
style.append(style.makeelement(w('keepLines'), **{w('val'):'on'}))
|
||||
if self.keep_next:
|
||||
style.append(style.makeelement(w('keepNext'), **{w('val'):'on'}))
|
||||
return style
|
||||
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user