# Channels > Split HSL
from lazpaint import image, dialog, layer, filters
# check if it is a channel
if layer.get_registry("split-channel") is not None:
dialog.show_message("Layer already split")
exit()
layer_id = layer.get_id()
layer_index = image.get_layer_index()
layer_opacity = layer.get_opacity()
layer_transparent = layer.is_transparent()
# check if it has been split
if layer.get_registry("split-channels-id") is not None:
for cur_layer_id in image.iterate_layers():
if layer.get_registry("split-source-id") == layer_id:
dialog.show_message("Layer already split")
exit()
image.do_begin()
channels = []
if layer_transparent:
channels.append({
"name": "Alpha",
"channel": "A",
"hue": "0",
"saturation": "0",
"lightness": "alpha",
"alpha": "255",
"blend": layer.BLEND_MASK
if chosen_radius == None:
chosen_radius = 10
chosen_offset = layer.get_registry("shadow-offset")
if chosen_offset == None or len(chosen_offset) != 2:
chosen_offset = image.get_registry("shadow-offset")
if chosen_offset == None or len(chosen_offset) != 2:
chosen_offset = (10, 10)
shadow_layer_id = layer.get_registry("shadow-layer-id")
if image.get_layer_index(shadow_layer_id) == None:
shadow_layer_id = None
if shadow_layer_id is not None:
layer.select_id(shadow_layer_id)
chosen_opacity = layer.get_opacity()
overlay_color = colors.str_to_RGBA(layer.get_registry("overlay-color"))
layer.select_id(source_layer_id)
else:
chosen_opacity = layer.get_opacity() * 2 / 3
overlay_color = None
if overlay_color is None:
overlay_color = colors.BLACK
def create_shadow_layer():
global shadow_layer_id
image.do_begin()
if shadow_layer_id != None:
layer.select_id(shadow_layer_id)
