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Fix PDF export not rendering emoji/symbols (fpdf2 fallback fonts) #124

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Fix PDF export not rendering emoji/symbols (fpdf2 fallback fonts) #124

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Binary file added src/osfexport/font/NotoEmoji-Regular.ttf
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Binary file added src/osfexport/font/NotoSansSymbols2-Regular.ttf
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16 changes: 15 additions & 1 deletion src/osfexport/formatter.py
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,12 @@
from mistletoe import markdown, HTMLRenderer
import qrcode
import urllib
import re

_EMOJI_RE = re.compile(r'([\U0001F300-\U0001FAFF\U00002700-\U000027BF\U00002600-\U000026FF])')

def wrap_emoji_with_font(html_text: str) -> str:
return _EMOJI_RE.sub(r'<font face="noto-emoji">\1</font>', html_text)


class HTMLImageSizeCapRenderer(HTMLRenderer):
Expand Down Expand Up @@ -109,6 +115,12 @@ def __init__(self, url=''):
os.path.dirname(__file__), 'font', 'DejaVuSans-Oblique.ttf'))
self.add_font(self.font, style="bi", fname=os.path.join(
os.path.dirname(__file__), 'font', 'DejaVuSans-BoldOblique.ttf'))
# Extra fonts to cover emoji / symbols
self.add_font('noto-emoji', style="", fname=os.path.join(
os.path.dirname(__file__), 'font', 'NotoEmoji-Regular.ttf'))
self.add_font('noto-symbols2', style="", fname=os.path.join(
os.path.dirname(__file__), 'font', 'NotoSansSymbols2-Regular.ttf'))


def generate_qr_code(self):
"""
Expand Down Expand Up @@ -359,10 +371,12 @@ def _write_wiki_pages(self, wikis, title, parent=None):
html = markdown(
wikis[wiki],
renderer=HTMLImageSizeCapRenderer
)
)
html = wrap_emoji_with_font(html)
self.write_html(html)



def explore_project_tree(project, projects, pdf=None):
"""Recursively find child projects and write them to a PDF.

Expand Down