def test_removing_layer():
layers = LayerList()
layer = Image(np.random.random((10, 10)))
layers.append(layer)
layers.remove(layer)
assert len(layers) == 0
def _merge_stack(ll: LayerList, rgb=False):
selection = list(ll.selection)
for layer in selection:
ll.remove(layer)
if rgb:
new = stack_utils.merge_rgb(selection)
else:
new = stack_utils.images_to_stack(selection)
ll.append(new)
def _split_stack(ll: LayerList, axis: int = 0):
layer = ll.selection.active
if not layer:
return
if layer.rgb:
images = stack_utils.split_rgb(layer)
else:
images = stack_utils.stack_to_images(layer, axis)
ll.remove(layer)
ll.extend(images)
ll.selection = set(images) # type: ignore
def test_ndim():
"""Test world extent after adding layers."""
np.random.seed(0)
layers = LayerList()
assert layers.ndim == 2
# Add one layer
layer_a = Image(np.random.random((10, 15)))
layers.append(layer_a)
assert layers.ndim == 2
# Add another layer
layer_b = Image(np.random.random((8, 6, 15)))
layers.append(layer_b)
assert layers.ndim == 3
# Remove layer
layers.remove(layer_b)
assert layers.ndim == 2
def test_removing_layers(qtbot):
"""
Test removing layers.
"""
layers = LayerList()
view = QtLayerList(layers)
qtbot.addWidget(view)
layer_a = Image(np.random.random((10, 10)))
layer_b = Image(np.random.random((15, 15)))
layer_c = Image(np.random.random((15, 15)))
layer_d = Image(np.random.random((15, 15)))
layers.append(layer_a)
layers.append(layer_b)
layers.append(layer_c)
layers.append(layer_d)
# Check layout and layers list match after removing a layer
layers.remove(layer_b)
assert view.vbox_layout.count() == 2 * (len(layers) + 1)
assert check_layout_layers(view.vbox_layout, layers)
assert check_layout_dividers(view.vbox_layout, len(layers))
# Check layout and layers list match after removing a layer
layers.remove(layer_d)
assert view.vbox_layout.count() == 2 * (len(layers) + 1)
assert check_layout_layers(view.vbox_layout, layers)
assert check_layout_dividers(view.vbox_layout, len(layers))
layers.append(layer_b)
layers.append(layer_d)
# Select first and third layers
for layer, s in zip(layers, [True, True, False, False]):
layer.selected = s
layers.remove_selected()
assert view.vbox_layout.count() == 2 * (len(layers) + 1)
assert check_layout_layers(view.vbox_layout, layers)
assert check_layout_dividers(view.vbox_layout, len(layers))
