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imgmath: Make the size of the displayed math customizable.

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This commit is contained in:
Hong Xu 2015-12-23 21:28:32 -08:00
parent ea25284d0a
commit f233c604ef
2 changed files with 12 additions and 3 deletions
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5
doc/ext/math.rst
View File

@ -191,6 +191,11 @@ built:
Default: ``True``. If false, do not add the LaTeX code as an "alt" attribute
for math images.
.. confval:: imgmath_font_size
The font size (in ``pt``) of the displayed math. The default value is
``12``. It must be a positive integer.
:mod:`sphinx.ext.mathjax` -- Render math via JavaScript
-------------------------------------------------------

10
sphinx/ext/imgmath.py
View File

@ -47,13 +47,14 @@ DOC_HEAD = r'''
\usepackage{amsthm}
\usepackage{amssymb}
\usepackage{amsfonts}
\usepackage{anyfontsize}
\usepackage{bm}
\pagestyle{empty}
'''
DOC_BODY = r'''
\begin{document}
%s
\fontsize{%d}{%d}\selectfont %s
\end{document}
'''
@ -61,7 +62,7 @@ DOC_BODY_PREVIEW = r'''
\usepackage[active]{preview}
\begin{document}
\begin{preview}
%s
\fontsize{%s}{%s}\selectfont %s
\end{preview}
\end{document}
'''
@ -88,9 +89,11 @@ def render_math(self, math):
raise MathExtError(
'imgmath_image_format must be either "png" or "svg"')
font_size = self.builder.config.imgmath_font_size
use_preview = self.builder.config.imgmath_use_preview
latex = DOC_HEAD + self.builder.config.imgmath_latex_preamble
latex += (use_preview and DOC_BODY_PREVIEW or DOC_BODY) % math
latex += (use_preview and DOC_BODY_PREVIEW or DOC_BODY) % (
font_size, int(round(font_size * 1.2)), math)
shasum = "%s.%s" % (sha1(latex.encode('utf-8')).hexdigest(), image_format)
relfn = posixpath.join(self.builder.imgpath, 'math', shasum)
@ -276,5 +279,6 @@ def setup(app):
app.add_config_value('imgmath_latex_args', [], 'html')
app.add_config_value('imgmath_latex_preamble', '', 'html')
app.add_config_value('imgmath_add_tooltips', True, 'html')
app.add_config_value('imgmath_font_size', 12, 'html')
app.connect('build-finished', cleanup_tempdir)
return {'version': sphinx.__display_version__, 'parallel_read_safe': True}