def peaks_view(self) -> PeaksViewerCollectionView:
"""Lazily instantiates PeaksViewer and returns it"""
if self._peaks_view is None:
self._peaks_view = PeaksViewerCollectionView(
MplPainter(self.data_view), self.presenter)
self.add_widget_to_splitter(self._peaks_view)
return self._peaks_view
def test_remove_calls_remove_on_artist(self):
painter = MplPainter(MagicMock())
mock_artist = MagicMock()
painter.remove(mock_artist)
mock_artist.remove.assert_called_once()
def test_shell_adds_patch(self):
axes = MagicMock()
painter = MplPainter(axes)
x, y, outer_radius, thick = 1, 2, 0.8, 0.2
painter.shell(x, y, outer_radius, thick)
axes.add_patch.assert_called_once()
self._verify_patch(patch=axes.add_patch.call_args[0][0], nvertices=100, alpha=None)
def test_circle_draws_circle_patch(self):
axes = MagicMock()
painter = MplPainter(axes)
x, y, radius = 1, 2, 0.8
artist = painter.circle(x, y, radius)
axes.add_patch.assert_called_once()
self.assertTrue(artist is not None)
def test_ellipticalshell(self):
axes = MagicMock()
painter = MplPainter(axes)
x, y, outer_width, outer_height, thick = 1, 2, 0.8, 1.0, 0.2
alpha = 1.0
painter.elliptical_shell(x, y, outer_width, outer_height, thick, alpha=alpha)
axes.add_patch.assert_called_once()
self._verify_patch(patch=axes.add_patch.call_args[0][0], nvertices=100, alpha=alpha)
def test_cross_passes_kwargs_to_mpl(self):
axes = MagicMock()
painter = MplPainter(axes)
x, y, half_width = 1, 2, 0.1
alpha = 0.8
painter.cross(x, y, half_width, alpha=alpha)
axes.add_patch.assert_called_once()
self._verify_patch(patch=axes.add_patch.call_args[0][0], nvertices=4, alpha=alpha)
def test_cross_draws_with_only_xy(self):
axes = MagicMock()
painter = MplPainter(axes)
x, y, half_width = 1, 2, 0.1
artist = painter.cross(x, y, half_width)
axes.add_patch.assert_called_once()
self.assertTrue(artist is not None)
self._verify_patch(patch=axes.add_patch.call_args[0][0], nvertices=4, alpha=None)
def test_zoom_to_sets_xy_limits_so_xy_at_center(self):
artist, axes, bbox, inv_trans = (MagicMock(), ) * 4
# 1:1 transformation for simplicity
inv_trans.transform.side_effect = lambda x: x
axes.transData.inverted.return_value = inv_trans
artist.get_extents.return_value = bbox
bbox.min, bbox.max = (1., 1.5), (3., 3.5)
painter = MplPainter(axes)
painter.zoom_to(artist)
axes.set_xlim.assert_called_once_with(0.6, 3.4)
axes.set_ylim.assert_called_once_with(1.1, 3.9)
def test_bbox_returns_ll_and_ur_of_containing_box(self):
artist, axes, bbox, inv_trans = (MagicMock(), ) * 4
# 1:1 transformation for simplicity
inv_trans.transform.side_effect = lambda x: x
axes.transData.inverted.return_value = inv_trans
artist.get_extents.return_value = bbox
bbox.min, bbox.max = (1., 1.5), (3., 3.5)
painter = MplPainter(axes)
ll, ur = painter.bbox(artist)
self.assertEqual(bbox.min, ll)
self.assertEqual(bbox.max, ur)
def test_painted_viewlimits_returns_limits_for_last_artist(self):
def create_mock_artist(extents):
artist = MagicMock()
bbox = MagicMock()
bbox.min, bbox.max = extents
artist.get_extents.return_value = bbox
return artist
axes, inv_trans = MagicMock(), MagicMock()
# 1:1 transformation for simplicity
inv_trans.transform.side_effect = lambda x: x
axes.transData.inverted.return_value = inv_trans
artists = create_mock_artist(((1., 1.5), (3., 3.5))), create_mock_artist(
((1.1, 1.3), (2.9, 3.6)))
painter = MplPainter(axes)
painted = Painted(painter, artists)
xlim, ylim = painted.viewlimits()
assert_allclose((0.64, 3.36), xlim)
assert_allclose((0.84, 4.06), ylim)