HGKeeper

SVGHMI: Fixed typo on session manager unregister, leading to wrong count of sessions and then exceptions when creating more session than allowed in protocol options. Also added more safety check in protocol in case session would be missing.
svghmi
2021-07-13, Edouard Tisserant

2bcfbea6a2a8

#!/usr/bin/env python

# -*- coding: utf-8 -*-

# This file is part of Beremiz

# See COPYING file for copyrights details.

from __future__ import print_function

import sys

from base64 import b64encode

from fontTools import ttLib

# Inkscape seems to refer to font with different family name depending on platform.

# this are heuristics that would need extensive testing to be sure.

FamilyNameIDs = [1] if sys.platform.startswith('win') else [1, 16]

def GetFontTypeAndFamilyName(filename):

"""

Getting font family, format and MIME type

"""

familyname = None

uniquename = None

formatname = None

mimetype = None

font = ttLib.TTFont(filename)

# https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6name.html

for name in font["name"].names:

#print(name.nameID, name.platformID, name.langID, name.toUnicode())

if name.nameID in FamilyNameIDs and name.platformID==3 and name.langID==1033:

familyname = name.toUnicode()

if name.nameID==4 and name.platformID==3 and name.langID==1033:

uniquename = name.toUnicode()

if font.flavor :

# woff and woff2

formatname = font.flavor

mimetype = "font/" + formatname

# conditions on sfntVersion was deduced from fontTools.ttLib.sfnt

elif font.sfntVersion in ("\x00\x01\x00\x00", "true"):

formatname = "truetype"

mimetype = "font/ttf"

elif font.sfntVersion == "OTTO":

formatname = "opentype"

mimetype = "font/otf"

return familyname,uniquename,formatname,mimetype

def DataURIFromFile(filename, mimetype):

with open(filename, "rb") as fp:

data = fp.read()

return "".join([

"data:",

mimetype,

";base64,",

b64encode(data).strip()])

def GetCSSFontFaceFromFontFile(filename):

familyname, uniquename, formatname, mimetype = GetFontTypeAndFamilyName(filename)

data_uri = DataURIFromFile(filename, mimetype)

css_font_face = \

"""

@font-face {{

font-family: "{}";

src: url("{}") format("{}")

}}

""".format(familyname, data_uri, formatname)

return css_font_face

# tests

if __name__ == '__main__':

print(GetCSSFontFaceFromFontFile("/usr/share/matplotlib/mpl-data/fonts/ttf/DejaVuSans.ttf"))

print(GetCSSFontFaceFromFontFile("/usr/share/fonts/opentype/urw-base35/NimbusSans-Regular.otf"))

print(GetCSSFontFaceFromFontFile("/usr/share/yelp/mathjax/fonts/HTML-CSS/TeX/woff/MathJax_SansSerif-Regular.woff"))

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