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PDF: Add font fallback on a pragraph level (Z#23203886) (#5367)

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* PDF: Add font fallback on a pragraph level (Z#23203886)

* Fix empty texts
This commit is contained in:
Raphael Michel
2025-08-13 10:51:23 +02:00
committed by GitHub
parent 328867c089
commit b9e627a86c
5 changed files with 171 additions and 105 deletions
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118
src/pretix/base/invoice.py
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@@ -48,7 +48,7 @@ from reportlab.pdfbase.ttfonts import TTFont
from reportlab.pdfgen.canvas import Canvas
from reportlab.platypus import (
BaseDocTemplate, Flowable, Frame, KeepTogether, NextPageTemplate,
PageTemplate, Paragraph, Spacer, Table, TableStyle,
PageTemplate, Spacer, Table, TableStyle,
)
from pretix.base.decimal import round_decimal
@@ -56,7 +56,9 @@ from pretix.base.models import Event, Invoice, Order, OrderPayment
from pretix.base.services.currencies import SOURCE_NAMES
from pretix.base.signals import register_invoice_renderers
from pretix.base.templatetags.money import money_filter
from pretix.helpers.reportlab import ThumbnailingImageReader, reshaper
from pretix.helpers.reportlab import (
FontFallbackParagraph, ThumbnailingImageReader, reshaper,
)
from pretix.presale.style import get_fonts
logger = logging.getLogger(__name__)
@@ -235,16 +237,17 @@ class BaseReportlabInvoiceRenderer(BaseInvoiceRenderer):
italic='OpenSansIt', boldItalic='OpenSansBI')
for family, styles in get_fonts(event=self.event, pdf_support_required=True).items():
pdfmetrics.registerFont(TTFont(family, finders.find(styles['regular']['truetype'])))
if family == self.event.settings.invoice_renderer_font:
pdfmetrics.registerFont(TTFont(family, finders.find(styles['regular']['truetype'])))
self.font_regular = family
if 'italic' in styles:
pdfmetrics.registerFont(TTFont(family + ' I', finders.find(styles['italic']['truetype'])))
if 'bold' in styles:
pdfmetrics.registerFont(TTFont(family + ' B', finders.find(styles['bold']['truetype'])))
self.font_bold = family + ' B'
if 'bolditalic' in styles:
pdfmetrics.registerFont(TTFont(family + ' B I', finders.find(styles['bolditalic']['truetype'])))
if 'italic' in styles:
pdfmetrics.registerFont(TTFont(family + ' I', finders.find(styles['italic']['truetype'])))
if 'bold' in styles:
pdfmetrics.registerFont(TTFont(family + ' B', finders.find(styles['bold']['truetype'])))
if 'bolditalic' in styles:
pdfmetrics.registerFont(TTFont(family + ' B I', finders.find(styles['bolditalic']['truetype'])))
def _normalize(self, text):
# reportlab does not support unicode combination characters
@@ -393,8 +396,8 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
invoice_to_top = 52 * mm
def _draw_invoice_to(self, canvas):
p = Paragraph(self._clean_text(self.invoice.address_invoice_to),
style=self.stylesheet['Normal'])
p = FontFallbackParagraph(self._clean_text(self.invoice.address_invoice_to),
style=self.stylesheet['Normal'])
p.wrapOn(canvas, self.invoice_to_width, self.invoice_to_height)
p_size = p.wrap(self.invoice_to_width, self.invoice_to_height)
p.drawOn(canvas, self.invoice_to_left, self.pagesize[1] - p_size[1] - self.invoice_to_top)
@@ -405,7 +408,7 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
invoice_from_top = 17 * mm
def _draw_invoice_from(self, canvas):
p = Paragraph(
p = FontFallbackParagraph(
self._clean_text(self.invoice.full_invoice_from),
style=self.stylesheet['InvoiceFrom']
)
@@ -523,12 +526,12 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
def shorten(txt):
txt = str(txt)
txt = bleach.clean(txt, tags=set()).strip()
p = Paragraph(self._normalize(txt.strip().replace('\n', '<br />\n')), style=self.stylesheet['Normal'])
p = FontFallbackParagraph(self._normalize(txt.strip().replace('\n', '<br />\n')), style=self.stylesheet['Normal'])
p_size = p.wrap(self.event_width, self.event_height)
while p_size[1] > 2 * self.stylesheet['Normal'].leading:
txt = ' '.join(txt.replace('…', '').split()[:-1]) + '…'
p = Paragraph(self._normalize(txt.strip().replace('\n', '<br />\n')), style=self.stylesheet['Normal'])
p = FontFallbackParagraph(self._normalize(txt.strip().replace('\n', '<br />\n')), style=self.stylesheet['Normal'])
p_size = p.wrap(self.event_width, self.event_height)
return txt
@@ -554,7 +557,7 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
else:
p_str = shorten(self.invoice.event.name)
p = Paragraph(self._normalize(p_str.strip().replace('\n', '<br />\n')), style=self.stylesheet['Normal'])
p = FontFallbackParagraph(self._normalize(p_str.strip().replace('\n', '<br />\n')), style=self.stylesheet['Normal'])
p.wrapOn(canvas, self.event_width, self.event_height)
p_size = p.wrap(self.event_width, self.event_height)
p.drawOn(canvas, self.event_left, self.pagesize[1] - self.event_top - p_size[1])
@@ -608,7 +611,7 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
def _get_intro(self):
story = []
if self.invoice.custom_field:
story.append(Paragraph(
story.append(FontFallbackParagraph(
'{}: {}'.format(
self._clean_text(str(self.invoice.event.settings.invoice_address_custom_field)),
self._clean_text(self.invoice.custom_field),
@@ -617,7 +620,7 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
))
if self.invoice.internal_reference:
story.append(Paragraph(
story.append(FontFallbackParagraph(
self._normalize(pgettext('invoice', 'Customer reference: {reference}').format(
reference=self._clean_text(self.invoice.internal_reference),
)),
@@ -625,14 +628,14 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
))
if self.invoice.invoice_to_vat_id:
story.append(Paragraph(
story.append(FontFallbackParagraph(
self._normalize(pgettext('invoice', 'Customer VAT ID')) + ': ' +
self._clean_text(self.invoice.invoice_to_vat_id),
self.stylesheet['Normal']
))
if self.invoice.invoice_to_beneficiary:
story.append(Paragraph(
story.append(FontFallbackParagraph(
self._normalize(pgettext('invoice', 'Beneficiary')) + ':<br />' +
self._clean_text(self.invoice.invoice_to_beneficiary),
self.stylesheet['Normal']
@@ -644,7 +647,7 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
if story:
story.append(Spacer(1, 5 * mm))
story.append(Paragraph(
story.append(FontFallbackParagraph(
self._clean_text(self.invoice.introductory_text, tags=['br']),
self.stylesheet['Normal']
))
@@ -657,7 +660,7 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
story = [
NextPageTemplate('FirstPage'),
Paragraph(
FontFallbackParagraph(
self._normalize(
pgettext('invoice', 'Tax Invoice') if str(self.invoice.invoice_from_country) == 'AU'
else pgettext('invoice', 'Invoice')
@@ -683,17 +686,17 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
]
if has_taxes:
tdata = [(
Paragraph(self._normalize(pgettext('invoice', 'Description')), self.stylesheet['Bold']),
Paragraph(self._normalize(pgettext('invoice', 'Qty')), self.stylesheet['BoldRightNoSplit']),
Paragraph(self._normalize(pgettext('invoice', 'Tax rate')), self.stylesheet['BoldRightNoSplit']),
Paragraph(self._normalize(pgettext('invoice', 'Net')), self.stylesheet['BoldRightNoSplit']),
Paragraph(self._normalize(pgettext('invoice', 'Gross')), self.stylesheet['BoldRightNoSplit']),
FontFallbackParagraph(self._normalize(pgettext('invoice', 'Description')), self.stylesheet['Bold']),
FontFallbackParagraph(self._normalize(pgettext('invoice', 'Qty')), self.stylesheet['BoldRightNoSplit']),
FontFallbackParagraph(self._normalize(pgettext('invoice', 'Tax rate')), self.stylesheet['BoldRightNoSplit']),
FontFallbackParagraph(self._normalize(pgettext('invoice', 'Net')), self.stylesheet['BoldRightNoSplit']),
FontFallbackParagraph(self._normalize(pgettext('invoice', 'Gross')), self.stylesheet['BoldRightNoSplit']),
)]
else:
tdata = [(
Paragraph(self._normalize(pgettext('invoice', 'Description')), self.stylesheet['Bold']),
Paragraph(self._normalize(pgettext('invoice', 'Qty')), self.stylesheet['BoldRightNoSplit']),
Paragraph(self._normalize(pgettext('invoice', 'Amount')), self.stylesheet['BoldRightNoSplit']),
FontFallbackParagraph(self._normalize(pgettext('invoice', 'Description')), self.stylesheet['Bold']),
FontFallbackParagraph(self._normalize(pgettext('invoice', 'Qty')), self.stylesheet['BoldRightNoSplit']),
FontFallbackParagraph(self._normalize(pgettext('invoice', 'Amount')), self.stylesheet['BoldRightNoSplit']),
)]
def _group_key(line):
@@ -715,14 +718,20 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
)
description = description + "\n" + single_price_line
tdata.append((
Paragraph(
FontFallbackParagraph(
self._clean_text(description, tags=['br']),
self.stylesheet['Normal']
),
str(len(lines)),
localize(tax_rate) + " %",
Paragraph(money_filter(net_value * len(lines), self.invoice.event.currency).replace('\xa0', ' '), self.stylesheet['NormalRight']),
Paragraph(money_filter(gross_value * len(lines), self.invoice.event.currency).replace('\xa0', ' '), self.stylesheet['NormalRight']),
FontFallbackParagraph(
money_filter(net_value * len(lines), self.invoice.event.currency).replace('\xa0', ' '),
self.stylesheet['NormalRight']
),
FontFallbackParagraph(
money_filter(gross_value * len(lines), self.invoice.event.currency).replace('\xa0', ' '),
self.stylesheet['NormalRight']
),
))
else:
if len(lines) > 1:
@@ -731,12 +740,15 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
)
description = description + "\n" + single_price_line
tdata.append((
Paragraph(
FontFallbackParagraph(
self._clean_text(description, tags=['br']),
self.stylesheet['Normal']
),
str(len(lines)),
Paragraph(money_filter(gross_value * len(lines), self.invoice.event.currency).replace('\xa0', ' '), self.stylesheet['NormalRight']),
FontFallbackParagraph(
money_filter(gross_value * len(lines), self.invoice.event.currency).replace('\xa0', ' '),
self.stylesheet['NormalRight']
),
))
taxvalue_map[tax_rate, tax_name] += (gross_value - net_value) * len(lines)
grossvalue_map[tax_rate, tax_name] += gross_value * len(lines)
@@ -744,13 +756,13 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
if has_taxes:
tdata.append([
Paragraph(self._normalize(pgettext('invoice', 'Invoice total')), self.stylesheet['Bold']), '', '', '',
FontFallbackParagraph(self._normalize(pgettext('invoice', 'Invoice total')), self.stylesheet['Bold']), '', '', '',
money_filter(total, self.invoice.event.currency)
])
colwidths = [a * doc.width for a in (.50, .05, .15, .15, .15)]
else:
tdata.append([
Paragraph(self._normalize(pgettext('invoice', 'Invoice total')), self.stylesheet['Bold']), '',
FontFallbackParagraph(self._normalize(pgettext('invoice', 'Invoice total')), self.stylesheet['Bold']), '',
money_filter(total, self.invoice.event.currency)
])
colwidths = [a * doc.width for a in (.65, .20, .15)]
@@ -760,12 +772,12 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
pending_sum = self.invoice.order.pending_sum
if pending_sum != total:
tdata.append(
[Paragraph(self._normalize(pgettext('invoice', 'Received payments')), self.stylesheet['Normal'])] +
[FontFallbackParagraph(self._normalize(pgettext('invoice', 'Received payments')), self.stylesheet['Normal'])] +
(['', '', ''] if has_taxes else ['']) +
[money_filter(pending_sum - total, self.invoice.event.currency)]
)
tdata.append(
[Paragraph(self._normalize(pgettext('invoice', 'Outstanding payments')), self.stylesheet['Bold'])] +
[FontFallbackParagraph(self._normalize(pgettext('invoice', 'Outstanding payments')), self.stylesheet['Bold'])] +
(['', '', ''] if has_taxes else ['']) +
[money_filter(pending_sum, self.invoice.event.currency)]
)
@@ -782,12 +794,12 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
s=Sum('amount')
)['s'] or Decimal('0.00')
tdata.append(
[Paragraph(self._normalize(pgettext('invoice', 'Paid by gift card')), self.stylesheet['Normal'])] +
[FontFallbackParagraph(self._normalize(pgettext('invoice', 'Paid by gift card')), self.stylesheet['Normal'])] +
(['', '', ''] if has_taxes else ['']) +
[money_filter(giftcard_sum, self.invoice.event.currency)]
)
tdata.append(
[Paragraph(self._normalize(pgettext('invoice', 'Remaining amount')), self.stylesheet['Bold'])] +
[FontFallbackParagraph(self._normalize(pgettext('invoice', 'Remaining amount')), self.stylesheet['Bold'])] +
(['', '', ''] if has_taxes else ['']) +
[money_filter(total - giftcard_sum, self.invoice.event.currency)]
)
@@ -810,7 +822,7 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
story.append(Spacer(1, 10 * mm))
if self.invoice.payment_provider_text:
story.append(Paragraph(
story.append(FontFallbackParagraph(
self._normalize(self.invoice.payment_provider_text),
self.stylesheet['Normal']
))
@@ -819,7 +831,7 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
story.append(Spacer(1, 3 * mm))
if self.invoice.additional_text:
story.append(Paragraph(
story.append(FontFallbackParagraph(
self._clean_text(self.invoice.additional_text, tags=['br']),
self.stylesheet['Normal']
))
@@ -835,10 +847,10 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
('FONTNAME', (0, 0), (-1, -1), self.font_regular),
]
thead = [
Paragraph(self._normalize(pgettext('invoice', 'Tax rate')), self.stylesheet['Fineprint']),
Paragraph(self._normalize(pgettext('invoice', 'Net value')), self.stylesheet['FineprintRight']),
Paragraph(self._normalize(pgettext('invoice', 'Gross value')), self.stylesheet['FineprintRight']),
Paragraph(self._normalize(pgettext('invoice', 'Tax')), self.stylesheet['FineprintRight']),
FontFallbackParagraph(self._normalize(pgettext('invoice', 'Tax rate')), self.stylesheet['Fineprint']),
FontFallbackParagraph(self._normalize(pgettext('invoice', 'Net value')), self.stylesheet['FineprintRight']),
FontFallbackParagraph(self._normalize(pgettext('invoice', 'Gross value')), self.stylesheet['FineprintRight']),
FontFallbackParagraph(self._normalize(pgettext('invoice', 'Tax')), self.stylesheet['FineprintRight']),
''
]
tdata = [thead]
@@ -849,7 +861,7 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
continue
tax = taxvalue_map[idx]
tdata.append([
Paragraph(self._normalize(localize(rate) + " % " + name), self.stylesheet['Fineprint']),
FontFallbackParagraph(self._normalize(localize(rate) + " % " + name), self.stylesheet['Fineprint']),
money_filter(gross - tax, self.invoice.event.currency),
money_filter(gross, self.invoice.event.currency),
money_filter(tax, self.invoice.event.currency),
@@ -868,7 +880,7 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
table.setStyle(TableStyle(tstyledata))
story.append(Spacer(5 * mm, 5 * mm))
story.append(KeepTogether([
Paragraph(self._normalize(pgettext('invoice', 'Included taxes')), self.stylesheet['FineprintHeading']),
FontFallbackParagraph(self._normalize(pgettext('invoice', 'Included taxes')), self.stylesheet['FineprintHeading']),
table
]))
@@ -885,7 +897,7 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
net = gross - tax
tdata.append([
Paragraph(self._normalize(localize(rate) + " % " + name), self.stylesheet['Fineprint']),
FontFallbackParagraph(self._normalize(localize(rate) + " % " + name), self.stylesheet['Fineprint']),
fmt(net), fmt(gross), fmt(tax), ''
])
@@ -894,7 +906,7 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
story.append(KeepTogether([
Spacer(1, height=2 * mm),
Paragraph(
FontFallbackParagraph(
self._normalize(pgettext(
'invoice', 'Using the conversion rate of 1:{rate} as published by the {authority} on '
'{date}, this corresponds to:'
@@ -909,7 +921,7 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
elif self.invoice.foreign_currency_display and self.invoice.foreign_currency_rate:
foreign_total = round_decimal(total * self.invoice.foreign_currency_rate)
story.append(Spacer(1, 5 * mm))
story.append(Paragraph(self._normalize(
story.append(FontFallbackParagraph(self._normalize(
pgettext(
'invoice', 'Using the conversion rate of 1:{rate} as published by the {authority} on '
'{date}, the invoice total corresponds to {total}.'
@@ -962,7 +974,7 @@ class Modern1Renderer(ClassicInvoiceRenderer):
self._clean_text(l)
for l in self.invoice.address_invoice_from.strip().split('\n')
]
p = Paragraph(self._normalize(' · '.join(c)), style=self.stylesheet['Sender'])
p = FontFallbackParagraph(self._normalize(' · '.join(c)), style=self.stylesheet['Sender'])
p.wrapOn(canvas, self.invoice_to_width, 15.7 * mm)
p.drawOn(canvas, self.invoice_to_left, self.pagesize[1] - self.invoice_to_top + 2 * mm)
super()._draw_invoice_from(canvas)
@@ -1021,7 +1033,7 @@ class Modern1Renderer(ClassicInvoiceRenderer):
_draw(pgettext('invoice', 'Order code'), self.invoice.order.full_code, value_size, self.left_margin, 45 * mm, **kwargs)
]
p = Paragraph(
p = FontFallbackParagraph(
self._normalize(date_format(self.invoice.date, "DATE_FORMAT")),
style=ParagraphStyle(name=f'Normal{value_size}', fontName=self.font_regular, fontSize=value_size, leading=value_size * 1.2)
)
@@ -1079,7 +1091,7 @@ class Modern1SimplifiedRenderer(Modern1Renderer):
i = []
if not self.invoice.event.has_subevents and self.invoice.event.settings.show_dates_on_frontpage:
i.append(Paragraph(
i.append(FontFallbackParagraph(
pgettext('invoice', 'Event date: {date_range}').format(
date_range=self.invoice.event.get_date_range_display(),
),