def test_update_theme(
mock_add_theme,
mock_remove_theme,
mock_icon_changed,
make_napari_viewer,
qapp,
):
viewer = make_napari_viewer()
blue = get_theme("dark", False)
blue.name = "blue"
register_theme("blue", blue)
# triggered when theme was added
mock_add_theme.assert_called()
mock_remove_theme.assert_not_called()
unregister_theme("blue")
# triggered when theme was removed
mock_remove_theme.assert_called()
mock_icon_changed.assert_not_called()
viewer.theme = "light"
theme = _themes["light"]
theme.icon = "#FF0000"
mock_icon_changed.assert_called()
def test_register_theme():
# Check that blue theme is not listed in available themes
themes = available_themes()
assert 'test_blue' not in themes
# Create new blue theme based on dark theme
blue_theme = get_theme('dark')
blue_theme.update(
background='rgb(28, 31, 48)',
foreground='rgb(45, 52, 71)',
primary='rgb(80, 88, 108)',
current='rgb(184, 112, 0)',
)
# Register blue theme
register_theme('test_blue', blue_theme)
# Check that blue theme is listed in available themes
themes = available_themes()
assert 'test_blue' in themes
# Check that the dark theme has not been overwritten
dark_theme = get_theme('dark')
assert not dark_theme['background'] == blue_theme['background']
# Check that blue theme can be gotten from available themes
theme = get_theme('test_blue')
assert theme['background'] == blue_theme['background']
def test_rebuild_theme_settings():
settings = get_settings()
assert "another-theme" not in available_themes()
# theme is not updated
with pytest.raises(ValidationError):
settings.appearance.theme = "another-theme"
blue_theme = get_theme("dark")
register_theme("another-theme", blue_theme)
settings.appearance.theme = "another-theme"
def test_custom_theme_settings(settings):
# See: https://github.com/napari/napari/issues/2340
custom_theme_name = "blue"
# No theme registered yet, this should fail
with pytest.raises(pydantic.error_wrappers.ValidationError):
settings.appearance.theme = custom_theme_name
blue_theme = get_theme('dark')
blue_theme.update(
background='rgb(28, 31, 48)',
foreground='rgb(45, 52, 71)',
primary='rgb(80, 88, 108)',
current='rgb(184, 112, 0)',
)
register_theme(custom_theme_name, custom_theme_name)
# Theme registered, should pass validation
settings.appearance.theme = custom_theme_name
def test_unregister_theme():
# Create new blue theme based on dark theme
blue_theme = get_theme('dark')
blue_theme.update(
background='rgb(28, 31, 48)',
foreground='rgb(45, 52, 71)',
primary='rgb(80, 88, 108)',
current='rgb(184, 112, 0)',
)
# Register blue theme
register_theme('test_blue', blue_theme)
# Check that blue theme is listed in available themes
themes = available_themes()
assert 'test_blue' in themes
# Remove theme from available themes
unregister_theme("test_blue")
themes = available_themes()
assert 'test_blue' not in themes
"""
Displays an image and sets the theme to new custom theme.
"""
from skimage import data
import napari
from napari.utils.theme import available_themes, get_theme, register_theme
with napari.gui_qt():
# create the viewer with an image
viewer = napari.view_image(data.astronaut(), rgb=True, name='astronaut')
# List themes
print('Originally themes', available_themes())
blue_theme = get_theme('dark')
blue_theme.update(
background='rgb(28, 31, 48)',
foreground='rgb(45, 52, 71)',
primary='rgb(80, 88, 108)',
current='rgb(184, 112, 0)',
)
register_theme('blue', blue_theme)
# List themes
print('New themes', available_themes())
# Set theme
viewer.theme = 'blue'
