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pretix_original/src/pretix/helpers/reportlab.py
2021-02-08 17:48:06 +01:00

23 lines
804 B
Python

from PIL.Image import BICUBIC
from reportlab.lib.utils import ImageReader
class ThumbnailingImageReader(ImageReader):
def resize(self, width, height, dpi):
if width is None:
width = height * self._image.size[0] / self._image.size[1]
if height is None:
height = width * self._image.size[1] / self._image.size[0]
self._image.thumbnail(
size=(int(width * dpi / 72), int(height * dpi / 72)),
resample=BICUBIC
)
self._data = None
return width, height
def _jpeg_fh(self):
# Bypass a reportlab-internal optimization that falls back to the original
# file handle if the file is a JPEG, and therefore does not respect the
# (smaller) size of the modified image.
return None