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Improve text rendering options in PDF editor (#1540)

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Improve text rendering options in PDF editor
This commit is contained in:
Raphael Michel
2020-01-07 12:23:37 +01:00
committed by GitHub
parent fdd45a85f0 47579d0517
commit 40da03f979
3 changed files with 58 additions and 7 deletions
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15
src/pretix/base/pdf.py
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@@ -472,10 +472,21 @@ class Renderer:
text = "<br/>".join(get_display(reshaper.reshape(l)) for l in text.split("<br/>"))
p = Paragraph(text, style=style)
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)
ad = getAscentDescent(font, float(o['fontsize']))
p.drawOn(canvas, float(o['left']) * mm, float(o['bottom']) * mm - ad[1])
canvas.saveState()
# The ascent/descent offsets here are not really proven to be correct, they're just empirical values to get
# reportlab render similarly to browser canvas.
if o.get('downward', False):
canvas.translate(float(o['left']) * mm, float(o['bottom']) * mm)
canvas.rotate(o.get('rotation', 0) * -1)
p.drawOn(canvas, 0, -h - ad[1] / 2)
else:
canvas.translate(float(o['left']) * mm, float(o['bottom']) * mm + h)
canvas.rotate(o.get('rotation', 0) * -1)
p.drawOn(canvas, 0, -h - ad[1])
canvas.restoreState()
def draw_page(self, canvas: Canvas, order: Order, op: OrderPosition):
for o in self.layout: