SilhouetteFX's Script - Sets the selected layer (or its parent if it's a shape) as the stabilize layer, clears it if it's the active layer, and centers the selection in the viewer.

silhouettefx_scripts_toggle_stabilize.py

"""Copyright (C) 2020 promto-c

Permission Notice:
- You are free to use, copy, modify, and distribute this software for any purpose.
- No restrictions are imposed on the use of this software.
- You do not need to give credit or include this notice in your work.
- Use at your own risk.
- This software is provided "AS IS" without any warranty, either expressed or implied.
- This license does not cover any third-party libraries or dependencies used in this software. Those libraries are subject to their respective licenses.
"""
import fx
import hook


def set_stabilize_layer():
    """Sets the selected layer as the stabilize layer.

    If the selected layer is a shape, it will set the parent layer as the stabilize layer.
    If the selected layer is the active layer, the stabilize layer will be set to None.
    """
    # Return if no layer is selected
    selected_layers = fx.selection()
    if not selected_layers:
        return

    layer = selected_layers[0]

    # If the selected layer is a shape, use the parent layer
    if isinstance(layer, fx.Shape):
        layer = layer.parent

    # Return if the layer is not a Layer
    if not isinstance(layer, fx.Layer):
        return

    # Set the layer as active if it's not already
    if layer != fx.activeLayer():
        fx.setActiveLayer(layer)

    # If the viewer layer is the same as the active layer, set it to None; otherwise, set to the current layer
    fx.viewer.layer = None if fx.viewer.layer == layer else layer

    # Center the selection in the viewer
    fx.viewer.centerSelection()

    # If the selected layer is a shape, select the parent layer
    if  layer and layer.property('pointer') and isinstance(layer.parent, fx.Layer):
        fx.select([layer.parent])


# Bind the function to the 'd' key
fx.bind("d", set_stabilize_layer)

# NOTE: If it doesn't work, uncomment the line below to bind the function to the 'd' key after startup
# hook.add("startupComplete", lambda: fx.bind("d", set_stabilize_layer))