def draw_representation(cls,
peak_origin,
shape_info,
painter,
fg_color,
bg_color,
slice_transform=None,
shape_name="ellipsoid"):
"""
Calls draw on a given representation type
:param cls: The representation type expected to have a classmethod called draw
:param peak_origin: 3-element sequence specifying the origin
:param shape_info: dict containing a relevant shape description
:param painter: Reference to the painter object
:param fg_color: str containing the foreground color
:param bg_color: str containing the background color
:param slice_transform: Optional function to assign as slice transformation. Defaults to identity
"""
def identity(x):
return x
peak_shape = MagicMock()
peak_shape.shapeName.return_value = shape_name
peak_shape.toJSON.return_value = json.dumps(shape_info)
if slice_transform is None:
slice_transform = identity
slice_info = create_slice_info(slice_transform,
slice_value=3.,
slice_width=10.)
return cls.draw(peak_origin, peak_shape, slice_info, painter, fg_color,
bg_color)
def test_slice_point_changed_clears_old_peaks_and_overlays_visible(
self, mock_peaks_list_presenter):
centers = ((1, 2, 3), (4, 5, 3.01))
slice_info = create_slice_info(centers, slice_value=3, slice_width=5)
test_model = create_peaks_viewer_model(centers, fg_color="r")
# draw some peaks first so we can test clearing them
painter, axes = MagicMock(), MagicMock()
axes.get_xlim.return_value = (-1, 1)
painter.axes = axes
test_model.draw_peaks(slice_info, painter, SpecialCoordinateSystem.QSample)
# clear draw calls
painter.cross.reset_mock()
self.mock_view.painter = painter
self.mock_view.sliceinfo = create_slice_info(centers, slice_value=3, slice_width=5)
presenter = PeaksViewerPresenter(test_model, self.mock_view)
presenter.notify(PeaksViewerPresenter.Event.SlicePointChanged)
self.assertEqual(2, self.mock_view.painter.remove.call_count)
self.assertEqual(2, self.mock_view.painter.cross.call_count)
def test_slice_point_changed_clears_old_peaks_and_overlays_visible(
self, mock_peaks_list_presenter):
centers = ((1, 2, 3), (4, 5, 3.01))
slice_info = create_slice_info(centers, slice_value=3, slice_width=5)
test_model = create_peaks_viewer_model(centers, fg_color="r")
# draw some peaks first so we can test clearing them
painter = MagicMock()
test_model.draw_peaks(slice_info, painter)
# clear draw calls
painter.cross.reset_mock()
mock_view = MagicMock()
mock_view.painter = painter
mock_view.sliceinfo = create_slice_info(centers,
slice_value=3,
slice_width=5)
presenter = PeaksViewerPresenter(test_model, mock_view)
presenter.notify(PeaksViewerPresenter.Event.SlicePointChanged)
self.assertEqual(2, mock_view.painter.remove.call_count)
self.assertEqual(2, mock_view.painter.cross.call_count)
def test_clear_removes_painted_peaks(self, mock_peaks_list_presenter):
centers = ((1, 2, 3), (4, 5, 3.01))
slice_info = create_slice_info(centers, slice_value=3, slice_width=5)
test_model = create_peaks_viewer_model(centers, fg_color="r")
painter = MagicMock()
test_model.draw_peaks(slice_info, painter)
mock_view = MagicMock()
mock_view.painter = painter
presenter = PeaksViewerPresenter(test_model, mock_view)
presenter.notify(PeaksViewerPresenter.Event.ClearPeaks)
self.assertEqual(2, mock_view.painter.remove.call_count)
def test_clear_removes_painted_peaks(self, mock_peaks_list_presenter):
centers = ((1, 2, 3), (4, 5, 3.01))
slice_info = create_slice_info(centers, slice_value=3, slice_width=5)
test_model = create_peaks_viewer_model(centers, fg_color="r")
painter, axes = MagicMock(), MagicMock()
axes.get_xlim.return_value = (-1, 1)
painter.axes = axes
test_model.draw_peaks(slice_info, painter, SpecialCoordinateSystem.QSample)
self.mock_view.painter = painter
presenter = PeaksViewerPresenter(test_model, self.mock_view)
presenter.notify(PeaksViewerPresenter.Event.ClearPeaks)
self.assertEqual(2, self.mock_view.painter.remove.call_count)
def test_draw_creates_nothing_when_alpha_lt_zero(self, compute_alpha_mock):
peak_origin, fg_color = (1, 3, 5), "r"
peak_shape, painter = MagicMock(), MagicMock()
alpha = -0.1
compute_alpha_mock.return_value = alpha
slice_info = create_slice_info(lambda x: x,
slice_value=3.,
slice_width=10.)
painted = NonIntegratedPeakRepresentation.draw(peak_origin, peak_shape,
slice_info, painter,
fg_color, "unused")
painter.cross.assert_not_called()
self.assertTrue(painted is None)
def test_draw_creates_cross_with_expected_properties_when_alpha_gt_zero(
self, compute_alpha_mock):
peak_origin, fg_color = (1, 3, 5), "r"
peak_shape, painter = MagicMock(), MagicMock()
painter.axes.get_xlim.return_value = (-10, 10)
alpha = 0.5
compute_alpha_mock.return_value = alpha
slice_info = create_slice_info(lambda x: x,
slice_value=3.,
slice_width=10.)
painted = NonIntegratedPeakRepresentation.draw(peak_origin, peak_shape,
slice_info, painter,
fg_color, "unused")
width = 0.15
painter.cross.assert_called_with(peak_origin[0],
peak_origin[1],
FuzzyMatch(width, atol=1e-2),
alpha=alpha,
color=fg_color)
self.assertTrue(painted is not None)
