def test_erase(Event, brush_shape, expected_sum):
"""Test erasing labels with different brush shapes."""
data = np.ones((20, 20))
layer = Labels(data)
layer.brush_size = 10
layer.mode = 'erase'
layer.brush_shape = brush_shape
layer.selected_label = 3
layer.position = (0, 0)
# Simulate click
event = ReadOnlyWrapper(Event(type='mouse_press', is_dragging=False))
mouse_press_callbacks(layer, event)
layer.position = (19, 19)
# Simulate drag
event = ReadOnlyWrapper(Event(type='mouse_move', is_dragging=True))
mouse_move_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(Event(type='mouse_release', is_dragging=False))
mouse_release_callbacks(layer, event)
# Painting goes from (0, 0) to (19, 19) with a brush size of 10, changing
# all pixels along that path, but non outside it.
assert np.unique(layer.data[:8, :8]) == 0
assert np.unique(layer.data[-8:, -8:]) == 0
assert np.unique(layer.data[:5, -5:]) == 1
assert np.unique(layer.data[-5:, :5]) == 1
assert np.sum(layer.data == 1) == expected_sum
def test_selecting_shapes_with_drag(mode, create_known_shapes_layer, Event):
"""Select all shapes when drag box includes all of them."""
layer, n_shapes, known_non_shape = create_known_shapes_layer
layer.mode = mode
layer.position = known_non_shape
# Simulate click
event = ReadOnlyWrapper(
Event(type='mouse_press', is_dragging=False, modifiers=[]))
mouse_press_callbacks(layer, event)
# Simulate drag start
event = ReadOnlyWrapper(
Event(type='mouse_move', is_dragging=True, modifiers=[]))
mouse_move_callbacks(layer, event)
layer.position = [0, 0]
# Simulate drag end
event = ReadOnlyWrapper(
Event(type='mouse_move', is_dragging=True, modifiers=[]))
mouse_move_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(type='mouse_release', is_dragging=True, modifiers=[]))
mouse_release_callbacks(layer, event)
# Check all shapes selected as drag box contains them
assert len(layer.selected_data) == n_shapes
def test_selecting_no_points_with_drag_2d(create_known_points_layer_2d):
"""Select no points when drag box outside of all of them."""
layer, n_points, known_non_point = create_known_points_layer_2d
layer.mode = 'select'
# Simulate click
event = ReadOnlyWrapper(Event(type='mouse_press',
position=known_non_point))
mouse_press_callbacks(layer, event)
# Simulate drag start
event = ReadOnlyWrapper(
Event(type='mouse_move', is_dragging=True, position=known_non_point))
mouse_move_callbacks(layer, event)
# Simulate drag end
event = ReadOnlyWrapper(
Event(type='mouse_move', is_dragging=True, position=(50, 60)))
mouse_move_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(type='mouse_release', is_dragging=True, position=(50, 60)))
mouse_release_callbacks(layer, event)
# Check no points selected as drag box doesn't contain them
assert len(layer.selected_data) == 0
def setup(self, n):
np.random.seed(0)
self.data = [50 * np.random.random((6, 2)) for i in range(n)]
self.layer = Shapes(self.data, shape_type='polygon')
self.layer.mode = 'select'
# initialize the position and select a shape
position = tuple(np.mean(self.layer.data[0], axis=0))
# create events
click_event = ReadOnlyWrapper(
Event(
type='mouse_press',
is_dragging=False,
modifiers=[],
position=position,
))
# Simulate click
mouse_press_callbacks(self.layer, click_event)
release_event = ReadOnlyWrapper(
Event(
type='mouse_release',
is_dragging=False,
modifiers=[],
position=position,
))
# Simulate release
mouse_release_callbacks(self.layer, release_event)
def test_add_point_3d(create_known_points_layer_3d):
"""Add a point by clicking in 3D mode."""
layer, n_points, known_not_point = create_known_points_layer_3d
layer.mode = 'add'
# Simulate click
event = ReadOnlyWrapper(
Event(
type='mouse_press',
position=known_not_point,
view_direction=[1, 0, 0],
dims_displayed=[0, 1, 2],
)
)
mouse_press_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(type='mouse_release', position=known_not_point)
)
mouse_release_callbacks(layer, event)
# Check clicked point selected
assert len(layer.data) == (n_points + 1)
np.testing.assert_array_equal(layer.data[-1], known_not_point)
def test_paint(Event, brush_shape, expected_sum):
"""Test painting labels with circle/square brush."""
data = np.ones((20, 20), dtype=np.int32)
layer = Labels(data)
layer.brush_size = 10
assert layer.cursor_size == 10
with pytest.warns(FutureWarning):
layer.brush_shape = brush_shape
layer.mode = 'paint'
layer.selected_label = 3
# Simulate click
event = ReadOnlyWrapper(
Event(type='mouse_press', is_dragging=False, position=(0, 0)))
mouse_press_callbacks(layer, event)
# Simulate drag
event = ReadOnlyWrapper(
Event(type='mouse_move', is_dragging=True, position=(19, 19)))
mouse_move_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(type='mouse_release', is_dragging=False, position=(19, 19)))
mouse_release_callbacks(layer, event)
# Painting goes from (0, 0) to (19, 19) with a brush size of 10, changing
# all pixels along that path, but none outside it.
assert np.unique(layer.data[:8, :8]) == 3
assert np.unique(layer.data[-8:, -8:]) == 3
assert np.unique(layer.data[:5, -5:]) == 1
assert np.unique(layer.data[-5:, :5]) == 1
assert np.sum(layer.data == 3) == expected_sum
def test_unselect_select_shape(mode, create_known_shapes_layer, Event):
"""Select a shape by clicking on one in select mode."""
layer, n_shapes, _ = create_known_shapes_layer
layer.mode = mode
position = tuple(layer.data[0][0])
layer.selected_data = {1}
# Simulate click
event = ReadOnlyWrapper(
Event(
type='mouse_press',
is_dragging=False,
modifiers=[],
position=position,
))
mouse_press_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(
type='mouse_release',
is_dragging=False,
modifiers=[],
position=position,
))
mouse_release_callbacks(layer, event)
# Check clicked shape selected
assert len(layer.selected_data) == 1
assert layer.selected_data == {0}
def test_not_adding_or_selecting_shape(create_known_shapes_layer, Event):
"""Don't add or select a shape by clicking on one in pan_zoom mode."""
layer, n_shapes, _ = create_known_shapes_layer
layer.mode = 'pan_zoom'
# Simulate click
event = ReadOnlyWrapper(
Event(
type='mouse_press',
is_dragging=False,
modifiers=[],
position=(0, 0),
))
mouse_press_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(
type='mouse_release',
is_dragging=False,
modifiers=[],
position=(0, 0),
))
mouse_release_callbacks(layer, event)
# Check no new shape added and non selected
assert len(layer.data) == n_shapes
assert len(layer.selected_data) == 0
def test_drag_in_add_mode(create_known_points_layer, Event):
"""Drag in add mode and make sure no point is added."""
layer, n_points, known_non_point = create_known_points_layer
# Add point at location where non exists
layer.mode = 'add'
layer.interactive = True
layer.position = known_non_point
# Simulate click
event = ReadOnlyWrapper(
Event(type='mouse_press', is_dragging=False, modifiers=[]))
mouse_press_callbacks(layer, event)
known_non_point_end = [40, 60]
layer.position = known_non_point_end
# Simulate drag end
event = ReadOnlyWrapper(
Event(type='mouse_move', is_dragging=True, modifiers=[]))
mouse_move_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(type='mouse_release', is_dragging=False, modifiers=[]))
mouse_release_callbacks(layer, event)
# Check that no new point has been added
assert len(layer.data) == n_points
def test_unselect_by_click_empty_3d(create_known_points_layer_3d):
"""Select unselecting point by clicking in empty space"""
layer, n_points, known_not_point = create_known_points_layer_3d
layer.mode = 'select'
layer.selected_data = {0, 1}
# Simulate click on point
event = ReadOnlyWrapper(
Event(
type='mouse_press',
position=known_not_point,
view_direction=[1, 0, 0],
dims_displayed=[0, 1, 2],
)
)
mouse_press_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(type='mouse_release', position=known_not_point)
)
mouse_release_callbacks(layer, event)
# Check clicked point selected
assert len(layer.selected_data) == 0
def test_selecting_all_points_with_drag(create_known_points_layer_2d):
"""Select all points when drag box includes all of them."""
layer, n_points, known_non_point = create_known_points_layer_2d
layer.mode = 'select'
# Simulate click
event = ReadOnlyWrapper(
Event(type='mouse_press', position=known_non_point)
)
mouse_press_callbacks(layer, event)
# Simulate drag start
event = ReadOnlyWrapper(
Event(type='mouse_move', is_dragging=True, position=known_non_point)
)
mouse_move_callbacks(layer, event)
# Simulate drag end
event = ReadOnlyWrapper(Event(type='mouse_move', is_dragging=True))
mouse_move_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(Event(type='mouse_release', is_dragging=True))
mouse_release_callbacks(layer, event)
# Check all points selected as drag box contains them
assert len(layer.selected_data) == n_points
def test_selct_by_shift_click_3d(create_known_points_layer_3d):
"""Select selecting point by shift clicking on an additional point in 3D"""
layer, n_points, _ = create_known_points_layer_3d
layer.mode = 'select'
position = tuple(layer.data[1])
layer.selected_data = {0}
# Simulate shift+click on point 1
event = ReadOnlyWrapper(
Event(
type='mouse_press',
position=position,
modifiers=['Shift'],
view_direction=[1, 0, 0],
dims_displayed=[0, 1, 2],
)
)
mouse_press_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(type='mouse_release', modifiers=['Shift'], position=position)
)
mouse_release_callbacks(layer, event)
# Check clicked point selected
assert layer.selected_data == {0, 1}
def test_select_point_3d(create_known_points_layer_3d):
"""Select a point by clicking on one in select mode in 3D mode."""
layer, n_points, _ = create_known_points_layer_3d
layer.mode = 'select'
position = tuple(layer.data[1])
# Simulate click
event = ReadOnlyWrapper(
Event(
type='mouse_press',
position=position,
view_direction=[1, 0, 0],
dims_displayed=[0, 1, 2],
)
)
mouse_press_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(Event(type='mouse_release', position=position))
mouse_release_callbacks(layer, event)
# Check clicked point selected
assert len(layer.selected_data) == 1
assert 1 in layer.selected_data
def time_select_shape(self, n):
"""Time to process shape selection events"""
position = tuple(np.mean(self.layer.data[1], axis=0))
# create events
click_event = ReadOnlyWrapper(
Event(
type='mouse_press',
is_dragging=False,
modifiers=[],
position=position,
))
# Simulate click
mouse_press_callbacks(self.layer, click_event)
release_event = ReadOnlyWrapper(
Event(
type='mouse_release',
is_dragging=False,
modifiers=[],
position=position,
))
# Simulate release
mouse_release_callbacks(self.layer, release_event)
def test_add_simple_shape(shape_type, create_known_shapes_layer, Event):
"""Add simple shape by clicking in add mode."""
layer, n_shapes, known_non_shape = create_known_shapes_layer
# Add shape at location where non exists
layer.mode = 'add_' + shape_type
layer.position = known_non_shape
# Simulate click
event = ReadOnlyWrapper(
Event(type='mouse_press', is_dragging=False, modifiers=[]))
mouse_press_callbacks(layer, event)
known_non_shape_end = [40, 60]
layer.position = known_non_shape_end
# Simulate drag end
event = ReadOnlyWrapper(
Event(type='mouse_move', is_dragging=True, modifiers=[]))
mouse_move_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(type='mouse_release', is_dragging=False, modifiers=[]))
mouse_release_callbacks(layer, event)
# Check new shape added at coordinates
assert len(layer.data) == n_shapes + 1
np.testing.assert_allclose(layer.data[-1][0], known_non_shape)
new_shape_max = np.max(layer.data[-1], axis=0)
np.testing.assert_allclose(new_shape_max, known_non_shape_end)
assert layer.shape_type[-1] == shape_type
def test_add_complex_shape(shape_type, create_known_shapes_layer, Event):
"""Add simple shape by clicking in add mode."""
layer, n_shapes, known_non_shape = create_known_shapes_layer
desired_shape = [[20, 30], [10, 50], [60, 40], [80, 20]]
# Add shape at location where non exists
layer.mode = 'add_' + shape_type
layer.position = desired_shape[0]
for coord in desired_shape:
layer.position = coord
# Simulate move, click, and release
event = ReadOnlyWrapper(
Event(type='mouse_move', is_dragging=False, modifiers=[]))
mouse_move_callbacks(layer, event)
event = ReadOnlyWrapper(
Event(type='mouse_press', is_dragging=False, modifiers=[]))
mouse_press_callbacks(layer, event)
event = ReadOnlyWrapper(
Event(type='mouse_release', is_dragging=False, modifiers=[]))
mouse_release_callbacks(layer, event)
# finish drawing
layer._finish_drawing()
# Check new shape added at coordinates
assert len(layer.data) == n_shapes + 1
np.testing.assert_allclose(layer.data[-1], desired_shape)
assert layer.shape_type[-1] == shape_type
def test_selecting_no_points_with_drag(create_known_points_layer, Event):
"""Select all points when drag box includes all of them."""
layer, n_points, known_non_point = create_known_points_layer
layer.mode = 'select'
layer.position = known_non_point
# Simulate click
event = ReadOnlyWrapper(
Event(type='mouse_press', is_dragging=False, modifiers=[]))
mouse_press_callbacks(layer, event)
# Simulate drag start
event = ReadOnlyWrapper(
Event(type='mouse_move', is_dragging=True, modifiers=[]))
mouse_move_callbacks(layer, event)
layer.position = [50, 60]
# Simulate drag end
event = ReadOnlyWrapper(
Event(type='mouse_move', is_dragging=True, modifiers=[]))
mouse_move_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(type='mouse_release', is_dragging=True, modifiers=[]))
mouse_release_callbacks(layer, event)
# Check no points selected as drag box doesn't contain them
assert len(layer.selected_data) == 0
def test_drag_vertex(create_known_shapes_layer, Event):
"""Select and drag vertex."""
layer, n_shapes, _ = create_known_shapes_layer
layer.mode = 'direct'
layer.selected_data = {0}
layer.position = tuple(layer.data[0][0])
# Simulate click
event = ReadOnlyWrapper(
Event(type='mouse_press', is_dragging=False, modifiers=[]))
mouse_press_callbacks(layer, event)
layer.position = [0, 0]
# Simulate move, click, and release
event = ReadOnlyWrapper(
Event(type='mouse_move', is_dragging=True, modifiers=[]))
mouse_move_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(type='mouse_release', is_dragging=True, modifiers=[]))
mouse_release_callbacks(layer, event)
# Check clicked shape selected
assert len(layer.selected_data) == 1
assert layer.selected_data == {0}
np.testing.assert_allclose(layer.data[0][-1], [0, 0])
def test_paint_scale(Event, brush_shape, expected_sum):
"""Test painting labels with circle/square brush when scaled."""
data = np.ones((20, 20))
layer = Labels(data, scale=(2, 2))
layer.brush_size = 20
layer.brush_shape = brush_shape
layer.mode = 'paint'
layer.selected_label = 3
layer.position = (0, 0)
# Simulate click
event = ReadOnlyWrapper(Event(type='mouse_press', is_dragging=False))
mouse_press_callbacks(layer, event)
layer.position = (39, 39)
# Simulate drag
event = ReadOnlyWrapper(Event(type='mouse_move', is_dragging=True))
mouse_move_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(Event(type='mouse_release', is_dragging=False))
mouse_release_callbacks(layer, event)
# Painting goes from (0, 0) to (19, 19) with a brush size of 10, changing
# all pixels along that path, but none outside it.
assert np.unique(layer.data[:8, :8]) == 3
assert np.unique(layer.data[-8:, -8:]) == 3
assert np.unique(layer.data[:5, -5:]) == 1
assert np.unique(layer.data[-5:, :5]) == 1
assert np.sum(layer.data == 3) == expected_sum
def test_unselecting_shapes(mode, create_known_shapes_layer, Event):
"""Unselect shapes by not clicking on one in select mode."""
layer, n_shapes, known_non_shape = create_known_shapes_layer
layer.mode = mode
layer.selected_data = {0, 1}
assert len(layer.selected_data) == 2
# Simulate click
event = ReadOnlyWrapper(
Event(
type='mouse_press',
is_dragging=False,
modifiers=[],
position=known_non_shape,
))
mouse_press_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(
type='mouse_release',
is_dragging=False,
modifiers=[],
position=known_non_shape,
))
mouse_release_callbacks(layer, event)
# Check clicked shape selected
assert len(layer.selected_data) == 0
def time_select_shape(self, n):
"""Time to process shape selection events"""
self.layer.position = tuple(np.mean(self.layer.data[1], axis=0))
# Simulate click
mouse_press_callbacks(self.layer, self.click_event)
# Simulate release
mouse_release_callbacks(self.layer, self.release_event)
def test_paint(MouseEvent):
"""Test painting labels with circle brush."""
data = np.ones((20, 20), dtype=np.int32)
layer = Labels(data)
layer.brush_size = 10
assert layer.cursor_size == 10
layer.mode = 'paint'
layer.selected_label = 3
# Simulate click
event = ReadOnlyWrapper(
MouseEvent(
type='mouse_press',
is_dragging=False,
position=(0, 0),
view_direction=None,
dims_displayed=(0, 1),
dims_point=(0, 0),
)
)
mouse_press_callbacks(layer, event)
# Simulate drag
event = ReadOnlyWrapper(
MouseEvent(
type='mouse_move',
is_dragging=True,
position=(19, 19),
view_direction=None,
dims_displayed=(0, 1),
dims_point=(0, 0),
)
)
mouse_move_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
MouseEvent(
type='mouse_release',
is_dragging=False,
position=(19, 19),
view_direction=None,
dims_displayed=(0, 1),
dims_point=(0, 0),
)
)
mouse_release_callbacks(layer, event)
# Painting goes from (0, 0) to (19, 19) with a brush size of 10, changing
# all pixels along that path, but none outside it.
assert np.unique(layer.data[:8, :8]) == 3
assert np.unique(layer.data[-8:, -8:]) == 3
assert np.unique(layer.data[:5, -5:]) == 1
assert np.unique(layer.data[-5:, :5]) == 1
assert np.sum(layer.data == 3) == 244
def test_selecting_no_points_with_drag_3d(create_known_points_layer_3d):
"""Select no points when drag box outside of all of them."""
layer, n_points, known_non_point = create_known_points_layer_3d
layer.mode = 'select'
# Simulate click
event = ReadOnlyWrapper(
Event(
type='mouse_press',
position=(5, 15, 15),
view_direction=[1, 0, 0],
up_direction=[0, 1, 0],
dims_displayed=[0, 1, 2],
))
mouse_press_callbacks(layer, event)
# Simulate drag start
event = ReadOnlyWrapper(
Event(
type='mouse_move',
is_dragging=True,
position=(5, 15, 15),
view_direction=[1, 0, 0],
up_direction=[0, 1, 0],
dims_displayed=[0, 1, 2],
))
mouse_move_callbacks(layer, event)
# Simulate drag end
event = ReadOnlyWrapper(
Event(
type='mouse_move',
is_dragging=True,
position=(5, 20, 20),
view_direction=[1, 0, 0],
up_direction=[0, 1, 0],
dims_displayed=[0, 1, 2],
))
mouse_move_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(
type='mouse_release',
is_dragging=True,
position=(5, 20, 20),
view_direction=[1, 0, 0],
up_direction=[0, 1, 0],
dims_displayed=[0, 1, 2],
))
mouse_release_callbacks(layer, event)
# Check all points selected as drag box contains them
assert len(layer.selected_data) == 0
def time_drag_shape(self, n):
"""Time to process 5 shape drag events"""
# initialize the position and select a shape
position = tuple(np.mean(self.layer.data[0], axis=0))
# create events
click_event = ReadOnlyWrapper(
Event(
type='mouse_press',
is_dragging=False,
modifiers=[],
position=position,
))
# Simulate click
mouse_press_callbacks(self.layer, click_event)
# create events
drag_event = ReadOnlyWrapper(
Event(
type='mouse_press',
is_dragging=True,
modifiers=[],
position=position,
))
# start drag event
mouse_move_callbacks(self.layer, drag_event)
# simulate 5 drag events
for _ in range(5):
position = tuple(np.add(position, [10, 5]))
drag_event = ReadOnlyWrapper(
Event(
type='mouse_press',
is_dragging=True,
modifiers=[],
position=position,
))
# Simulate move, click, and release
mouse_move_callbacks(self.layer, drag_event)
release_event = ReadOnlyWrapper(
Event(
type='mouse_release',
is_dragging=False,
modifiers=[],
position=position,
))
# Simulate release
mouse_release_callbacks(self.layer, release_event)
def test_not_adding_or_selecting_point(create_known_points_layer_2d):
"""Don't add or select a point by clicking on one in pan_zoom mode."""
layer, n_points, _ = create_known_points_layer_2d
layer.mode = 'pan_zoom'
# Simulate click
event = ReadOnlyWrapper(Event(type='mouse_press'))
mouse_press_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(Event(type='mouse_release'))
mouse_release_callbacks(layer, event)
# Check no new point added and non selected
assert len(layer.data) == n_points
assert len(layer.selected_data) == 0
def time_drag_shape(self, n):
"""Time to process 5 shape drag events"""
# Simulate click
mouse_press_callbacks(self.layer, self.click_event)
# start drag event
mouse_move_callbacks(self.layer, self.drag_event)
# simulate 5 drag events
for _ in range(5):
self.layer.position = tuple(np.add(self.layer.position, [10, 5]))
# Simulate move, click, and release
mouse_move_callbacks(self.layer, self.drag_event)
# Simulate release
mouse_release_callbacks(self.layer, self.release_event)
def test_labels_painting(make_test_viewer):
"""Test painting labels updates image."""
data = np.zeros((100, 100))
viewer = make_test_viewer(show=True)
viewer.add_labels(data)
layer = viewer.layers[0]
screenshot = viewer.screenshot(canvas_only=True)
# Check that no painting has occurred
assert layer.data.max() == 0
assert screenshot[:, :, :2].max() == 0
# Enter paint mode
layer.position = (0, 0)
layer.mode = 'paint'
layer.selected_label = 3
# Simulate click
Event = collections.namedtuple(
'Event', field_names=['type', 'is_dragging']
)
# Simulate click
event = ReadOnlyWrapper(Event(type='mouse_press', is_dragging=False))
mouse_press_callbacks(layer, event)
layer.position = (100, 100)
# Simulate drag
event = ReadOnlyWrapper(Event(type='mouse_move', is_dragging=True))
mouse_move_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(Event(type='mouse_release', is_dragging=False))
mouse_release_callbacks(layer, event)
event = ReadOnlyWrapper(Event(type='mouse_press', is_dragging=False))
mouse_press_callbacks(layer, event)
screenshot = viewer.screenshot(canvas_only=True)
# Check that painting has now occurred
assert layer.data.max() > 0
assert screenshot[:, :, :2].max() > 0
def test_select_point(create_known_points_layer_2d):
"""Select a point by clicking on one in select mode."""
layer, n_points, _ = create_known_points_layer_2d
layer.mode = 'select'
position = tuple(layer.data[0])
# Simulate click
event = ReadOnlyWrapper(Event(type='mouse_press', position=position))
mouse_press_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(Event(type='mouse_release', position=position))
mouse_release_callbacks(layer, event)
# Check clicked point selected
assert len(layer.selected_data) == 1
assert 0 in layer.selected_data
def test_not_selecting_point(create_known_points_layer_2d):
"""Don't select a point by not clicking on one in select mode."""
layer, n_points, known_non_point = create_known_points_layer_2d
layer.mode = 'select'
# Simulate click
event = ReadOnlyWrapper(Event(type='mouse_press',
position=known_non_point))
mouse_press_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(type='mouse_release', position=known_non_point))
mouse_release_callbacks(layer, event)
# Check clicked point selected
assert len(layer.selected_data) == 0
def test_drag_shape(create_known_shapes_layer, Event):
"""Select and drag vertex."""
layer, n_shapes, _ = create_known_shapes_layer
layer.mode = 'select'
orig_data = layer.data[0].copy()
assert len(layer.selected_data) == 0
layer.position = tuple(np.mean(layer.data[0], axis=0))
# Simulate click
event = ReadOnlyWrapper(
Event(type='mouse_press', is_dragging=False, modifiers=[]))
mouse_press_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(type='mouse_release', is_dragging=False, modifiers=[]))
mouse_release_callbacks(layer, event)
assert len(layer.selected_data) == 1
assert layer.selected_data == {0}
# Simulate click
event = ReadOnlyWrapper(
Event(type='mouse_press', is_dragging=True, modifiers=[]))
mouse_press_callbacks(layer, event)
# start drag event
event = ReadOnlyWrapper(
Event(type='mouse_move', is_dragging=True, modifiers=[]))
mouse_move_callbacks(layer, event)
layer.position = tuple(np.add(layer.position, [10, 5]))
# Simulate move, click, and release
event = ReadOnlyWrapper(
Event(type='mouse_move', is_dragging=True, modifiers=[]))
mouse_move_callbacks(layer, event)
# Simulate release
event = ReadOnlyWrapper(
Event(type='mouse_release', is_dragging=True, modifiers=[]))
mouse_release_callbacks(layer, event)
# Check clicked shape selected
assert len(layer.selected_data) == 1
assert layer.selected_data == {0}
np.testing.assert_allclose(layer.data[0], orig_data + [10, 5])