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73 lines
2.2 KiB
Python
73 lines
2.2 KiB
Python
from PIL import Image, ImageQt
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from .helper import PillowTestCase, assert_image_equal, hopper
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from .test_imageqt import PillowQtTestCase
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if ImageQt.qt_is_installed:
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from PIL.ImageQt import QImage
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try:
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from PyQt5 import QtGui
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from PyQt5.QtWidgets import QWidget, QHBoxLayout, QLabel, QApplication
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except (ImportError, RuntimeError):
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from PySide2 import QtGui
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from PySide2.QtWidgets import QWidget, QHBoxLayout, QLabel, QApplication
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class TestToQImage(PillowQtTestCase, PillowTestCase):
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def test_sanity(self):
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for mode in ("RGB", "RGBA", "L", "P", "1"):
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src = hopper(mode)
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data = ImageQt.toqimage(src)
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self.assertIsInstance(data, QImage)
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self.assertFalse(data.isNull())
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# reload directly from the qimage
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rt = ImageQt.fromqimage(data)
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if mode in ("L", "P", "1"):
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assert_image_equal(rt, src.convert("RGB"))
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else:
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assert_image_equal(rt, src)
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if mode == "1":
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# BW appears to not save correctly on QT4 and QT5
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# kicks out errors on console:
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# libpng warning: Invalid color type/bit depth combination
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# in IHDR
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# libpng error: Invalid IHDR data
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continue
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# Test saving the file
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tempfile = self.tempfile("temp_{}.png".format(mode))
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data.save(tempfile)
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# Check that it actually worked.
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with Image.open(tempfile) as reloaded:
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assert_image_equal(reloaded, src)
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def test_segfault(self):
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app = QApplication([])
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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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if ImageQt.qt_is_installed:
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class Example(QWidget):
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def __init__(self):
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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 = QtGui.QPixmap.fromImage(qimage)
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QHBoxLayout(self) # hbox
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lbl = QLabel(self)
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# Segfault in the problem
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lbl.setPixmap(pixmap1.copy())
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