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Performance: Do not load the same TTF font multiple times

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Raphael Michel
2021-06-13 20:59:56 +02:00
parent c132ccd141
commit eb5ed2bdf9
1 changed files with 4 additions and 0 deletions
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4
src/pretix/base/pdf.py
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@@ -568,6 +568,8 @@ class Renderer:
@classmethod @classmethod
def _register_fonts(cls): def _register_fonts(cls):
if hasattr(cls, '_fonts_registered'):
return
pdfmetrics.registerFont(TTFont('Open Sans', finders.find('fonts/OpenSans-Regular.ttf'))) pdfmetrics.registerFont(TTFont('Open Sans', finders.find('fonts/OpenSans-Regular.ttf')))
pdfmetrics.registerFont(TTFont('Open Sans I', finders.find('fonts/OpenSans-Italic.ttf'))) pdfmetrics.registerFont(TTFont('Open Sans I', finders.find('fonts/OpenSans-Italic.ttf')))
pdfmetrics.registerFont(TTFont('Open Sans B', finders.find('fonts/OpenSans-Bold.ttf'))) pdfmetrics.registerFont(TTFont('Open Sans B', finders.find('fonts/OpenSans-Bold.ttf')))
@@ -582,6 +584,8 @@ class Renderer:
if 'bolditalic' in styles: if 'bolditalic' in styles:
pdfmetrics.registerFont(TTFont(family + ' B I', finders.find(styles['bolditalic']['truetype']))) pdfmetrics.registerFont(TTFont(family + ' B I', finders.find(styles['bolditalic']['truetype'])))
cls._fonts_registered = True
def _draw_poweredby(self, canvas: Canvas, op: OrderPosition, o: dict): def _draw_poweredby(self, canvas: Canvas, op: OrderPosition, o: dict):
content = o.get('content', 'dark') content = o.get('content', 'dark')
if content not in ('dark', 'white'): if content not in ('dark', 'white'):