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101 lines
3.5 KiB
Python
101 lines
3.5 KiB
Python
from __future__ import annotations
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from pathlib import Path
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from typing import TYPE_CHECKING, Union
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import pytest
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from PIL import Image, ImageQt
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from .helper import assert_image_equal_tofile, assert_image_similar, hopper
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if TYPE_CHECKING:
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import PyQt6
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import PySide6
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QApplication = Union[PyQt6.QtWidgets.QApplication, PySide6.QtWidgets.QApplication]
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QHBoxLayout = Union[PyQt6.QtWidgets.QHBoxLayout, PySide6.QtWidgets.QHBoxLayout]
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QImage = Union[PyQt6.QtGui.QImage, PySide6.QtGui.QImage]
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QLabel = Union[PyQt6.QtWidgets.QLabel, PySide6.QtWidgets.QLabel]
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QPainter = Union[PyQt6.QtGui.QPainter, PySide6.QtGui.QPainter]
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QPixmap = Union[PyQt6.QtGui.QPixmap, PySide6.QtGui.QPixmap]
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QPoint = Union[PyQt6.QtCore.QPoint, PySide6.QtCore.QPoint]
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QRegion = Union[PyQt6.QtGui.QRegion, PySide6.QtGui.QRegion]
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QWidget = Union[PyQt6.QtWidgets.QWidget, PySide6.QtWidgets.QWidget]
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if ImageQt.qt_is_installed:
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from PIL.ImageQt import QPixmap
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if ImageQt.qt_version == "6":
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from PyQt6.QtCore import QPoint
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from PyQt6.QtGui import QImage, QPainter, QRegion
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from PyQt6.QtWidgets import QApplication, QHBoxLayout, QLabel, QWidget
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elif ImageQt.qt_version == "side6":
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from PySide6.QtCore import QPoint
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from PySide6.QtGui import QImage, QPainter, QRegion
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from PySide6.QtWidgets import QApplication, QHBoxLayout, QLabel, QWidget
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class Example(QWidget): # type: ignore[misc]
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def __init__(self) -> None:
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super().__init__()
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img = hopper().resize((1000, 1000))
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qimage = ImageQt.ImageQt(img)
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pixmap1 = getattr(ImageQt.QPixmap, "fromImage")(qimage)
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# hbox
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QHBoxLayout(self) # type: ignore[operator]
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lbl = QLabel(self) # type: ignore[operator]
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# Segfault in the problem
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lbl.setPixmap(pixmap1.copy())
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def roundtrip(expected: Image.Image) -> None:
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result = ImageQt.fromqpixmap(ImageQt.toqpixmap(expected))
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# Qt saves all pixmaps as rgb
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assert_image_similar(result, expected.convert("RGB"), 1)
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@pytest.mark.skipif(not ImageQt.qt_is_installed, reason="Qt bindings are not installed")
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def test_sanity(tmp_path: Path) -> None:
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# Segfault test
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app: QApplication | None = QApplication([]) # type: ignore[operator]
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ex = Example()
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assert app # Silence warning
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assert ex # Silence warning
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for mode in ("1", "RGB", "RGBA", "L", "P"):
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# to QPixmap
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im = hopper(mode)
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data = ImageQt.toqpixmap(im)
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assert data.__class__.__name__ == "QPixmap"
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assert not data.isNull()
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# Test saving the file
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tempfile = str(tmp_path / f"temp_{mode}.png")
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data.save(tempfile)
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# Render the image
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imageqt = ImageQt.ImageQt(im)
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data = getattr(QPixmap, "fromImage")(imageqt)
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qt_format = getattr(QImage, "Format") if ImageQt.qt_version == "6" else QImage
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qimage = QImage(128, 128, getattr(qt_format, "Format_ARGB32")) # type: ignore[operator]
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painter = QPainter(qimage) # type: ignore[operator]
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image_label = QLabel() # type: ignore[operator]
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image_label.setPixmap(data)
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image_label.render(painter, QPoint(0, 0), QRegion(0, 0, 128, 128)) # type: ignore[operator]
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painter.end()
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rendered_tempfile = str(tmp_path / f"temp_rendered_{mode}.png")
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qimage.save(rendered_tempfile)
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assert_image_equal_tofile(im.convert("RGBA"), rendered_tempfile)
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# from QPixmap
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roundtrip(hopper(mode))
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app.quit()
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app = None
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