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PDF: Fix Arabic string rendering

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Raphael Michel
2023-01-31 17:11:47 +01:00
parent fc63f60960
commit eea48af60a
1 changed files with 4 additions and 3 deletions
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7
src/pretix/base/pdf.py
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@@ -862,6 +862,10 @@ class Renderer:
self._get_text_content(op, order, o) or "", self._get_text_content(op, order, o) or "",
).replace("\n", "<br/>\n").replace("-", "-&hairsp;") ).replace("\n", "<br/>\n").replace("-", "-&hairsp;")
# reportlab does not support unicode combination characters
# It's important we do this before we use ArabicReshaper
text = unicodedata.normalize("NFKC", text)
# reportlab does not support RTL, ligature-heavy scripts like Arabic. Therefore, we use ArabicReshaper # reportlab does not support RTL, ligature-heavy scripts like Arabic. Therefore, we use ArabicReshaper
# to resolve all ligatures and python-bidi to switch RTL texts. # to resolve all ligatures and python-bidi to switch RTL texts.
try: try:
@@ -869,9 +873,6 @@ class Renderer:
except: except:
logger.exception('Reshaping/Bidi fixes failed on string {}'.format(repr(text))) logger.exception('Reshaping/Bidi fixes failed on string {}'.format(repr(text)))
# reportlab does not support unicode combination characters
text = unicodedata.normalize("NFKC", text)
p = Paragraph(text, style=style) p = Paragraph(text, style=style)
w, h = p.wrapOn(canvas, float(o['width']) * mm, 1000 * mm) w, h = p.wrapOn(canvas, float(o['width']) * mm, 1000 * mm)
# p_size = p.wrap(float(o['width']) * mm, 1000 * mm) # p_size = p.wrap(float(o['width']) * mm, 1000 * mm)