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Allow rotated thumbs

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dave 2018-09-09 16:47:05 -07:00
parent 75c931c7d4
commit 1ff3e2106b
1 changed files with 20 additions and 8 deletions
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28
photoapp/library.py
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@ -70,20 +70,32 @@ class PhotoLibrary(object):
Create a thumbnail of the given photo, scaled/cropped to the given named style
:return: local path to thumbnail file or None if creation failed or was blocked
"""
styles = {"tiny": (80, 80),
"small": (100, 100),
"feed": (250, 250),
"preview": (1024, 768),
"big": (2048, 1536)}
# style tuples: max x, max y, rotate ok)
# rotate ok means x and y maxes can be swapped if it fits the image's aspect ratio better
styles = {"tiny": (80, 80, False),
"small": (100, 100, False),
"feed": (250, 250, False),
"preview": (1024, 768, True),
"big": (2048, 1536, True)}
dest = os.path.join(self.cache_path, "thumbs", style, "{}.jpg".format(photo.uuid))
if os.path.exists(dest):
return os.path.abspath(dest)
if photo.width is None: # todo better detection of images that PIL can't open
return None
if photo.uuid not in self._failed_thumbs_cache[style]:
width = min(styles[style][0], photo.width if photo.width > 0 else 999999999)
height = min(styles[style][1], photo.height if photo.height > 0 else 999999999) # TODO this is bad.
p = Process(target=self.gen_thumb, args=(os.path.join(self.path, photo.path), dest, width, height, photo.orientation))
thumb_width, thumb_height, flip_ok = styles[style]
im_is_rotated = photo.orientation % 2 != 0
i_width = photo.width
i_height = photo.height
if im_is_rotated and flip_ok:
thumb_width, thumb_height = thumb_height, thumb_width
thumb_width = min(thumb_width, i_width if i_width > 0 else 999999999) # TODO do we even have photo.width if PIL can't read the image?
thumb_height = min(thumb_height, i_height if i_height > 0 else 999999999) # TODO this seems bad
print("thumb final wxh is {}x{}".format(thumb_width, thumb_height))
p = Process(target=self.gen_thumb, args=(os.path.join(self.path, photo.path), dest, thumb_width, thumb_height, photo.orientation))
p.start()
p.join()
if p.exitcode != 0: