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E-book viewer: Fix mathematics being typeset at too small a font size on windows

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This commit is contained in:
Kovid Goyal 2016-03-27 08:43:54 +05:30
parent 1a38f03966
commit 0f20c27226
3 changed files with 9 additions and 7 deletions
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resources/compiled_coffeescript.zip
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13
src/calibre/ebooks/oeb/display/mathjax.coffee
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@ -23,23 +23,24 @@ class MathJax
this.pending_cfi = null
this.hub = null
load_mathjax: (user_config) ->
load_mathjax: (user_config, is_windows) ->
if this.base == null
log('You must specify the path to the MathJax installation before trying to load MathJax')
return null
script = document.createElement('script')
scale = if is_windows then 160 else 100
script.type = 'text/javascript'
script.src = 'file://' + this.base + '/MathJax.js'
script.text = user_config + '''
script.text = user_config + ('''
MathJax.Hub.signal.Interest(function (message) {if (String(message).match(/error/i)) {console.log(message)}});
MathJax.Hub.Config({
positionToHash: false,
showMathMenu: false,
extensions: ["tex2jax.js", "asciimath2jax.js", "mml2jax.js"],
jax: ["input/TeX","input/MathML","input/AsciiMath","output/SVG"],
SVG : { linebreaks : { automatic : true } },
SVG : { linebreaks : { automatic : true }, scale: __scale__ },
TeX: {
extensions: ["AMSmath.js","AMSsymbols.js","noErrors.js","noUndefined.js"]
}
@ -47,7 +48,7 @@ class MathJax
MathJax.Hub.Startup.onload();
MathJax.Hub.Register.StartupHook("End", window.mathjax.load_finished);
window.mathjax.hub = MathJax.Hub
'''
''').replace('__scale__', scale)
document.head.appendChild(script)
load_finished: () =>
@ -58,7 +59,7 @@ class MathJax
this.pending_cfi = null
window.cfi.scroll_to(cfi, callback)
check_for_math: () ->
check_for_math: (is_windows) ->
script = null
this.math_present = false
this.math_loaded = false
@ -73,7 +74,7 @@ class MathJax
if script != null or document.getElementsByTagName('math').length > 0
this.math_present = true
this.load_mathjax(user_config)
this.load_mathjax(user_config, is_windows)
return this.math_present
after_resize: () ->

3
src/calibre/gui2/viewer/documentview.py
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@ -258,7 +258,8 @@ class Document(QWebPage): # {{{
self.javascript('window.paged_display.read_document_margins()')
self.set_bottom_padding(0)
self.fit_images()
self.math_present = self.javascript('window.mathjax.check_for_math()', bool)
w = 1 if iswindows else 0
self.math_present = self.javascript('window.mathjax.check_for_math(%d)' % w, bool)
self.init_hyphenate()
self.javascript('full_screen.save_margins()')
if self.in_fullscreen_mode: