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diff-pdf-page.py: allow use of "magick" (on Windows)

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The ImageMagick package on Windows does not use convert,
but uses magick (which is not used by Linux).

So use a variable to make is simpler
to make it usable under Windows.

Note that cygwin's ImageMagick package does use "convert",
overriding Windows built in disk convert tool.

Change-Id: I658e0eb11400cf9e6c65ab4ba150ed2ab239c94e
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/175455
Tested-by: Jenkins
Reviewed-by: Justin Luth <jluth@mail.com>
Reviewed-by: László Németh <nemeth@numbertext.org>
This commit is contained in:
Justin Luth 2024-10-22 18:37:11 -04:00 committed by Justin Luth
parent 4a9a6c6786
commit a50f65d6cc
1 changed files with 8 additions and 4 deletions
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12
bin/diff-pdf-page.py
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@ -8,6 +8,8 @@
# red is meant to reduce as fixing progresses. Sample usage:
#
# bin/diff-pdf-page.py reference.pdf test.pdf diff.png
#
# using the ImageMagick tooling
import argparse
import tempfile
@ -26,15 +28,17 @@ def main():
parser.add_argument("diff_png")
args = parser.parse_args()
CONVERT_CMD="convert" # use "magick" if Windows has installed ImageMagick and GhostScript
a_png = tempfile.NamedTemporaryFile(suffix=".png")
a_pdf = args.a_pdf + "[" + args.page + "]"
run(["convert", "-density", args.density, a_pdf, "-colorspace", "RGB", "-fuzz", "95%", "-fill", "red", "-opaque", "black", a_png.name])
run([CONVERT_CMD, "-density", args.density, a_pdf, "-colorspace", "RGB", "-fuzz", "95%", "-fill", "red", "-opaque", "black", a_png.name])
b_png = tempfile.NamedTemporaryFile(suffix=".png")
b_pdf = args.b_pdf + "[" + args.page + "]"
run(["convert", "-density", args.density, b_pdf, "-colorspace", "RGB", b_png.name])
run([CONVERT_CMD, "-density", args.density, b_pdf, "-colorspace", "RGB", b_png.name])
composite_png = tempfile.NamedTemporaryFile(suffix=".png")
run(["convert", a_png.name, b_png.name, "-composite", composite_png.name])
run(["convert", composite_png.name, "-background", "white", "-flatten", args.diff_png])
run([CONVERT_CMD, a_png.name, b_png.name, "-composite", composite_png.name])
run([CONVERT_CMD, composite_png.name, "-background", "white", "-flatten", args.diff_png])
if __name__ == "__main__":
main()