def createWidget(self, parent):
model = LayerStackModel()
o1 = Layer()
o1.name = "Fancy Layer"
o1.opacity = 0.5
model.append(o1)
o2 = Layer()
o2.name = "Some other Layer"
o2.opacity = 0.25
model.append(o2)
o3 = Layer()
o3.name = "Invisible Layer"
o3.opacity = 0.15
o3.visible = False
model.append(o3)
o4 = Layer()
o4.name = "Fancy Layer II"
o4.opacity = 0.95
model.append(o4)
o5 = Layer()
o5.name = "Fancy Layer III"
o5.opacity = 0.65
model.append(o5)
view = LayerWidget(parent, model)
view.updateGeometry()
return view
def createWidget(self, parent):
model = LayerStackModel()
o1 = Layer()
o1.name = "Fancy Layer"
o1.opacity = 0.5
model.append(o1)
o2 = Layer()
o2.name = "Some other Layer"
o2.opacity = 0.25
model.append(o2)
o3 = Layer()
o3.name = "Invisible Layer"
o3.opacity = 0.15
o3.visible = False
model.append(o3)
o4 = Layer()
o4.name = "Fancy Layer II"
o4.opacity = 0.95
model.append(o4)
o5 = Layer()
o5.name = "Fancy Layer III"
o5.opacity = 0.65
model.append(o5)
view = LayerWidget(parent, model)
view.updateGeometry()
return view
class TestLayerWidget( ut.TestCase ):
"""
Create two layers and add them to a LayerWidget.
Then change one of the layer visibilities and verify that the layer widget appearance updates.
At the time of this writing, the widget doesn't properly repaint the selected layer (all others repaint correctly).
"""
@classmethod
def setUpClass(cls):
if 'TRAVIS' in os.environ:
# This test fails on Travis-CI for unknown reasons,
# probably due to the variability of time.sleep().
# Skip it on Travis-CI.
import nose
raise nose.SkipTest
cls.app = QApplication([])
cls.errors = False
@classmethod
def tearDownClass(cls):
del cls.app
def impl(self):
try:
# Capture the window before we change anything
beforeImg = QPixmap.grabWindow( self.w.winId() ).toImage()
# Change the visibility of the *selected* layer
self.o2.visible = False
self.w.repaint()
# Make sure the GUI is caught up on paint events
QApplication.processEvents()
# We must sleep for the screenshot to be right.
time.sleep(0.1)
# Capture the window now that we've changed a layer.
afterImg = QPixmap.grabWindow( self.w.winId() ).toImage()
# Optional: Save the files so we can inspect them ourselves...
#beforeImg.save('before.png')
#afterImg.save('after.png')
# Before and after should NOT match.
assert beforeImg != afterImg
except:
# Catch all exceptions and print them
# We must finish so we can quit the app.
import traceback
traceback.print_exc()
TestLayerWidget.errors = True
qApp.quit()
def test_repaint_after_visible_change(self):
self.model = LayerStackModel()
self.o1 = Layer([])
self.o1.name = "Fancy Layer"
self.o1.opacity = 0.5
self.model.append(self.o1)
self.o2 = Layer([])
self.o2.name = "Some other Layer"
self.o2.opacity = 0.25
self.model.append(self.o2)
self.view = LayerWidget(None, self.model)
self.view.show()
self.view.updateGeometry()
self.w = QWidget()
self.lh = QHBoxLayout(self.w)
self.lh.addWidget(self.view)
self.w.setGeometry(100, 100, 300, 300)
self.w.show()
# Run the test within the GUI event loop
QTimer.singleShot(500, self.impl )
self.app.exec_()
# Were there errors?
assert not TestLayerWidget.errors, "There were GUI errors/failures. See above."
class TestLayerWidget(ut.TestCase):
"""
Create two layers and add them to a LayerWidget.
Then change one of the layer visibilities and verify that the layer widget appearance updates.
At the time of this writing, the widget doesn't properly repaint the selected layer (all others repaint correctly).
"""
@classmethod
def setUpClass(cls):
if 'TRAVIS' in os.environ:
# This test fails on Travis-CI for unknown reasons,
# probably due to the variability of time.sleep().
# Skip it on Travis-CI.
import nose
raise nose.SkipTest
cls.app = QApplication([])
cls.errors = False
@classmethod
def tearDownClass(cls):
del cls.app
def impl(self):
try:
# Change the visibility of the *selected* layer
self.o2.visible = False
# Make sure the GUI is caught up on paint events
QApplication.processEvents()
# We must sleep for the screenshot to be right.
time.sleep(0.1)
self.w.repaint()
# Capture the window before we change anything
beforeImg = QPixmap.grabWindow(self.w.winId()).toImage()
# Change the visibility of the *selected* layer
self.o2.visible = True
self.w.repaint()
# Make sure the GUI is caught up on paint events
QApplication.processEvents()
# We must sleep for the screenshot to be right.
time.sleep(0.1)
# Capture the window now that we've changed a layer.
afterImg = QPixmap.grabWindow(self.w.winId()).toImage()
# Optional: Save the files so we can inspect them ourselves...
#beforeImg.save('before.png')
#afterImg.save('after.png')
# Before and after should NOT match.
assert beforeImg != afterImg
except:
# Catch all exceptions and print them
# We must finish so we can quit the app.
import traceback
traceback.print_exc()
TestLayerWidget.errors = True
qApp.quit()
def test_repaint_after_visible_change(self):
self.model = LayerStackModel()
self.o1 = Layer([])
self.o1.name = "Fancy Layer"
self.o1.opacity = 0.5
self.model.append(self.o1)
self.o2 = Layer([])
self.o2.name = "Some other Layer"
self.o2.opacity = 0.25
self.model.append(self.o2)
self.view = LayerWidget(None, self.model)
self.view.show()
self.view.updateGeometry()
self.w = QWidget()
self.lh = QHBoxLayout(self.w)
self.lh.addWidget(self.view)
self.w.setGeometry(100, 100, 300, 300)
self.w.show()
self.w.raise_()
# Run the test within the GUI event loop
QTimer.singleShot(500, self.impl)
self.app.exec_()
# Were there errors?
assert not TestLayerWidget.errors, "There were GUI errors/failures. See above."