yw1573/A1SwapModPacker
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Enhance thumbnail generation

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This commit is contained in:
hyyz17200
2026-05-08 02:37:59 +08:00
parent 61b2b7ae44
commit 8bfaa1d1fe
2 changed files with 229 additions and 14 deletions
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tests/test_active_plate_member.py
+85 -3
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@@ -9,11 +9,17 @@ from pathlib import Path
from a1_swap_mod_packer.builder import (
preview_members_for_gcode_member,
resolve_output_gcode_member,
select_preview_sources,
write_output_3mf,
)
from a1_swap_mod_packer.metadata import read_model_settings_gcode_members
from a1_swap_mod_packer.models import BuildOptions, PlateSource
try:
from PIL import Image
except Exception: # pragma: no cover
Image = None
class ActivePlateMemberTest(unittest.TestCase):
def test_write_output_preserves_configured_plate_member(self) -> None:
@@ -56,8 +62,72 @@ class ActivePlateMemberTest(unittest.TestCase):
self.assertEqual(archive.read("Metadata/plate_2.gcode.md5").decode(), md5)
self.assertEqual(md5, hashlib.md5(gcode_bytes).hexdigest())
def test_preview_composite_uses_first_nine_unique_input_files(self) -> None:
if Image is None:
self.skipTest("Pillow is not installed")
colors = [
(255, 0, 0, 255),
(0, 0, 255, 255),
(255, 255, 0, 255),
(255, 0, 255, 255),
(0, 255, 255, 255),
(128, 0, 0, 255),
(0, 0, 128, 255),
(128, 128, 0, 255),
(128, 0, 128, 255),
(255, 128, 0, 255),
]
with tempfile.TemporaryDirectory() as directory:
root = Path(directory)
sources: list[PlateSource] = []
for index, color in enumerate(colors):
source_3mf = root / f"source_{index}.3mf"
self.write_plate2_archive(source_3mf, image_color=color, image_size=300)
sources.append(
PlateSource(
source_3mf=source_3mf,
member_name="Metadata/plate_2.gcode",
gcode_text="G1 X0\n",
)
)
selected = select_preview_sources(sources)
self.assertEqual(len(selected), 9)
self.assertEqual(selected[-1].source_3mf.name, "source_8.3mf")
output_3mf = root / "out.3mf"
options = BuildOptions(
swap_gcode="",
output_3mf=output_3mf,
add_preview_label=True,
apply_gcode_patches=False,
)
write_output_3mf(sources[0].source_3mf, output_3mf, b"G1 X1\n", sources, options)
with zipfile.ZipFile(output_3mf, "r") as archive:
image_bytes = archive.read("Metadata/plate_2.png")
import io
image = Image.open(io.BytesIO(image_bytes)).convert("RGBA")
sampled_colors = {
image.getpixel((50, 50)),
image.getpixel((150, 50)),
image.getpixel((250, 50)),
image.getpixel((50, 150)),
image.getpixel((150, 150)),
image.getpixel((250, 150)),
image.getpixel((50, 250)),
image.getpixel((150, 250)),
image.getpixel((250, 250)),
}
self.assertTrue(set(colors[:9]).issubset(sampled_colors))
self.assertNotIn(colors[9], sampled_colors)
@staticmethod
def write_plate2_archive(path: Path) -> None:
def write_plate2_archive(path: Path, image_color: tuple[int, int, int, int] | None = None, image_size: int = 128) -> None:
model_settings = """<?xml version="1.0" encoding="UTF-8"?>
<config>
<plate>
@@ -82,8 +152,20 @@ class ActivePlateMemberTest(unittest.TestCase):
archive.writestr("Metadata/slice_info.config", slice_info)
archive.writestr("Metadata/plate_2.gcode", "G1 X0\n")
archive.writestr("Metadata/plate_2.gcode.md5", "old")
archive.writestr("Metadata/plate_2.png", b"png")
archive.writestr("Metadata/plate_2_small.png", b"png")
if image_color is None or Image is None:
archive.writestr("Metadata/plate_2.png", b"png")
archive.writestr("Metadata/plate_2_small.png", b"png")
else:
import io
image = Image.new("RGBA", (image_size, image_size), image_color)
output = io.BytesIO()
image.save(output, format="PNG")
archive.writestr("Metadata/plate_2.png", output.getvalue())
small = image.resize((max(1, image_size // 2), max(1, image_size // 2)))
output = io.BytesIO()
small.save(output, format="PNG")
archive.writestr("Metadata/plate_2_small.png", output.getvalue())
if __name__ == "__main__":