Pillow/Tests/test_imageqt.py

73 lines
1.8 KiB
Python

from helper import unittest, PillowTestCase, hopper
from PIL import ImageQt
if ImageQt.qt_is_installed:
from PIL.ImageQt import QGuiApplication, QImage, qRgb, qRgba
def skip_if_qt_is_not_installed(_):
pass
else:
def skip_if_qt_is_not_installed(test_case):
test_case.skipTest('PyQt4, PyQt5, or PySide is not installed')
class PillowQtTestCase:
def setUp(self):
try:
from PyQt5.QtGui import QImage, qRgb, qRgba
except ImportError:
try:
from PyQt4.QtGui import QImage, qRgb, qRgba
except ImportError:
try:
from PySide.QtGui import QImage, qRgb, qRgba
except ImportError:
self.skipTest('PyQt4 or 5 or PySide not installed')
skip_if_qt_is_not_installed(self)
def tearDown(self):
pass
class PillowQPixmapTestCase(PillowQtTestCase):
def setUp(self):
PillowQtTestCase.setUp(self)
self.app = QGuiApplication([])
def tearDown(self):
PillowQtTestCase.tearDown(self)
self.app.quit()
class TestImageQt(PillowQtTestCase, PillowTestCase):
def test_rgb(self):
# from https://qt-project.org/doc/qt-4.8/qcolor.html
# typedef QRgb
# An ARGB quadruplet on the format #AARRGGBB,
# equivalent to an unsigned int.
self.assertEqual(qRgb(0, 0, 0), qRgba(0, 0, 0, 255))
def checkrgb(r, g, b):
val = ImageQt.rgb(r, g, b)
val = val % 2**24 # drop the alpha
self.assertEqual(val >> 16, r)
self.assertEqual(((val >> 8) % 2**8), g)
self.assertEqual(val % 2**8, b)
checkrgb(0, 0, 0)
checkrgb(255, 0, 0)
checkrgb(0, 255, 0)
checkrgb(0, 0, 255)
if __name__ == '__main__':
unittest.main()
# End of file