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56 lines
1.4 KiB
Python
56 lines
1.4 KiB
Python
from __future__ import annotations
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import warnings
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import pytest
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from PIL import ImageQt
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from .helper import assert_image_similar, hopper
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pytestmark = pytest.mark.skipif(
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not ImageQt.qt_is_installed, reason="Qt bindings are not installed"
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)
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if ImageQt.qt_is_installed:
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from PIL.ImageQt import qRgba
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def test_rgb() -> None:
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# from https://doc.qt.io/archives/qt-4.8/qcolor.html
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# typedef QRgb
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# An ARGB quadruplet on the format #AARRGGBB,
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# equivalent to an unsigned int.
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if ImageQt.qt_version == "6":
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from PyQt6.QtGui import qRgb
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elif ImageQt.qt_version == "side6":
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from PySide6.QtGui import qRgb
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assert qRgb(0, 0, 0) == qRgba(0, 0, 0, 255)
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def checkrgb(r: int, g: int, b: int) -> None:
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val = ImageQt.rgb(r, g, b)
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val = val % 2**24 # drop the alpha
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assert val >> 16 == r
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assert ((val >> 8) % 2**8) == g
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assert val % 2**8 == b
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checkrgb(0, 0, 0)
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checkrgb(255, 0, 0)
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checkrgb(0, 255, 0)
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checkrgb(0, 0, 255)
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@pytest.mark.parametrize("mode", ("1", "RGB", "RGBA", "L", "P", "I;16"))
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def test_image(mode: str) -> None:
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im = hopper(mode)
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roundtripped_im = ImageQt.fromqimage(ImageQt.ImageQt(im))
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if mode not in ("RGB", "RGBA"):
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im = im.convert("RGB")
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assert_image_similar(roundtripped_im, im, 1)
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def test_closed_file() -> None:
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with warnings.catch_warnings():
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ImageQt.ImageQt("Tests/images/hopper.gif")
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