movement.napari.layer_wiring

Description

Layer callbacks that must outlive the widget connecting them.

Put a callback here if it should be active as long as the viewer or a layer exists (rather than sharing lifetime with a widget that can be closed).

• Typical candidates are callbacks that mutate layer state (data, properties, symbols, editable): that state is part of the user’s work and may be saved to a file later, so it must survive the widget being closed.

• A callback that only refreshes a widget’s own UI (a dropdown, a table, a button) can stay a method on that widget: once the widget is gone there is nothing left to update, which is fine.

Functions

active_movement_points_layer	Return the active movement Points layer, else the last one, else None.
connect_viewer_callbacks	Wire the layer callbacks to a viewer, skipping if already wired.
frame_axis_is_sliced	Determine whether the frame axis is the sliced axis in a 2D view.
is_movement_points_layer	Return True for a movement-loaded napari Points layer.
on_points_data_changed	Keep the corresponding Tracks layer in sync with the Points layer.
remove_from_tracks_layer	Remove the rows corresponding to deleted points.
set_point_symbol_by_edited	Show points flagged as edited with a distinct marker symbol.
set_tracks_layer_data	Set a Tracks layer's data and properties, preserving color_by.
sync_tracks_layer	Update the corresponding Tracks layer to match an edited point.
update_frame_slider_range	Widen the frame slider range to cover NaN-trimmed frames.
update_points_layers_editable	Disable point editing while the frame axis isn't sliced.