author | Edouard Tisserant <edouard.tisserant@gmail.com> |
Fri, 26 Apr 2024 09:45:02 +0200 | |
changeset 3939 | b73d6668eba3 |
parent 3933 | 6750083ae878 |
permissions | -rw-r--r-- |
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Edouard Tisserant <edouard.tisserant@gmail.com>
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#!/usr/bin/env python |
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Edouard Tisserant <edouard.tisserant@gmail.com>
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# -*- coding: utf-8 -*- |
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Edouard Tisserant <edouard.tisserant@gmail.com>
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# This file is part of Beremiz |
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# Copyright (C) 2021: Edouard TISSERANT |
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Edouard Tisserant <edouard.tisserant@gmail.com>
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# |
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Edouard Tisserant <edouard.tisserant@gmail.com>
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# See COPYING file for copyrights details. |
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from __future__ import print_function |
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import sys |
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from base64 import b64encode |
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from fontTools import ttLib |
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# Inkscape seems to refer to font with different family name depending on platform. |
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# this are heuristics that would need extensive testing to be sure. |
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FamilyNameIDs = [1] if sys.platform.startswith('win') else [1, 16] |
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def GetFontTypeAndFamilyName(filename): |
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""" |
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Edouard Tisserant <edouard.tisserant@gmail.com>
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Getting font family, format and MIME type |
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""" |
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SVGHMI: Added fonts.py with functions to convert ttf, otf and woff fonts into data_uri based CSS font-face
Edouard Tisserant <edouard.tisserant@gmail.com>
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SVGHMI: Added fonts.py with functions to convert ttf, otf and woff fonts into data_uri based CSS font-face
Edouard Tisserant <edouard.tisserant@gmail.com>
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familyname = None |
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uniquename = None |
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formatname = None |
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Edouard Tisserant <edouard.tisserant@gmail.com>
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mimetype = None |
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SVGHMI: Added fonts.py with functions to convert ttf, otf and woff fonts into data_uri based CSS font-face
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font = ttLib.TTFont(filename) |
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SVGHMI: Added fonts.py with functions to convert ttf, otf and woff fonts into data_uri based CSS font-face
Edouard Tisserant <edouard.tisserant@gmail.com>
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# https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6name.html |
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for name in font["name"].names: |
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#print(name.nameID, name.platformID, name.langID, name.toUnicode()) |
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if name.nameID in FamilyNameIDs and name.platformID==3 and name.langID==1033: |
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parents:
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familyname = name.toUnicode() |
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if name.nameID==4 and name.platformID==3 and name.langID==1033: |
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uniquename = name.toUnicode() |
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Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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SVGHMI: Added fonts.py with functions to convert ttf, otf and woff fonts into data_uri based CSS font-face
Edouard Tisserant <edouard.tisserant@gmail.com>
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if font.flavor : |
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Edouard Tisserant <edouard.tisserant@gmail.com>
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# woff and woff2 |
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formatname = font.flavor |
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Edouard Tisserant <edouard.tisserant@gmail.com>
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mimetype = "font/" + formatname |
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Edouard Tisserant <edouard.tisserant@gmail.com>
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# conditions on sfntVersion was deduced from fontTools.ttLib.sfnt |
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elif font.sfntVersion in ("\x00\x01\x00\x00", "true"): |
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formatname = "truetype" |
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mimetype = "font/ttf" |
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elif font.sfntVersion == "OTTO": |
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formatname = "opentype" |
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mimetype = "font/otf" |
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return familyname,uniquename,formatname,mimetype |
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def DataURIFromFile(filename, mimetype): |
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with open(filename, "rb") as fp: |
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data = fp.read() |
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return "".join([ |
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"data:", |
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mimetype, |
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";base64,", |
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b64encode(data).decode().strip()]) |
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def GetCSSFontFaceFromFontFile(filename): |
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familyname, uniquename, formatname, mimetype = GetFontTypeAndFamilyName(filename) |
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data_uri = DataURIFromFile(filename, mimetype) |
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Edouard Tisserant <edouard.tisserant@gmail.com>
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css_font_face = \ |
debd5014ce21
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Edouard Tisserant <edouard.tisserant@gmail.com>
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""" |
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Edouard Tisserant <edouard.tisserant@gmail.com>
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@font-face {{ |
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Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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font-family: "{}"; |
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Edouard Tisserant <edouard.tisserant@gmail.com>
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src: url("{}") format("{}") |
debd5014ce21
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Edouard Tisserant <edouard.tisserant@gmail.com>
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}} |
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Edouard Tisserant <edouard.tisserant@gmail.com>
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""".format(familyname, data_uri, formatname) |
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Edouard Tisserant <edouard.tisserant@gmail.com>
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return css_font_face |
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parents:
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parents:
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# tests |
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if __name__ == '__main__': |
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Edouard Tisserant <edouard.tisserant@gmail.com>
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print(GetCSSFontFaceFromFontFile("/usr/share/matplotlib/mpl-data/fonts/ttf/DejaVuSans.ttf")) |
debd5014ce21
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Edouard Tisserant <edouard.tisserant@gmail.com>
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print(GetCSSFontFaceFromFontFile("/usr/share/fonts/opentype/urw-base35/NimbusSans-Regular.otf")) |
debd5014ce21
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Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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print(GetCSSFontFaceFromFontFile("/usr/share/yelp/mathjax/fonts/HTML-CSS/TeX/woff/MathJax_SansSerif-Regular.woff")) |