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Check for scaling in macOS windows

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Andrew Murray 2025-07-09 20:00:20 +10:00 committed by GUO YANKE
parent 7eaac3fcf0
commit 79914ec8a5
1 changed files with 23 additions and 4 deletions
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27
src/PIL/ImageGrab.py
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@ -45,8 +45,7 @@ def grab(
args = ["screencapture"]
if window:
args += ["-l", str(window)]
# -R is not working with -l
if bbox and not window:
elif bbox:
left, top, right, bottom = bbox
args += ["-R", f"{left},{top},{right-left},{bottom-top}"]
subprocess.call(args + ["-x", filepath])
@ -54,9 +53,29 @@ def grab(
im.load()
os.unlink(filepath)
if bbox:
# manual crop for windowed mode
if window:
im_cropped = im.crop(bbox)
# Determine if the window was in retina mode or not
# by capturing it without the shadow,
# and checking how different the width is
fh, filepath = tempfile.mkstemp(".png")
os.close(fh)
subprocess.call(
["screencapture", "-l", str(window), "-o", "-x", filepath]
)
with Image.open(filepath) as im_no_shadow:
retina = im.width - im_no_shadow.width > 100
os.unlink(filepath)
# Since screencapture's -R does not work with -l,
# crop the image manually
if retina:
left, top, right, bottom = bbox
im_cropped = im.resize(
(right - left, bottom - top),
box=tuple(coord * 2 for coord in bbox),
)
else:
im_cropped = im.crop(bbox)
im.close()
return im_cropped
else: