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from typing import Type
from ...utils import coordinate_list_to_point_list
from ...utils.dotdict import DotDict
from .stitch_layer_editor import StitchLayerEditor
class StitchLayer:
# must be overridden in child classes and set to a subclass of StitchLayerEditor
editor_class: Type[StitchLayerEditor] = None # type:ignore[assignment]
# not to be overridden in child classes
_defaults = None
def __init__(self, *args, config, sew_stack=None, change_callback=None, **kwargs):
self.config = DotDict(self.defaults)
self.config.layer_id = self.layer_id
self.config.update(config)
self.element = sew_stack
super().__init__(*args, **kwargs)
@classmethod
@property
def defaults(cls):
# Implement this in each child class. Return a dict with default
# values for all properties used in this layer.
raise NotImplementedError(f"{cls.__name__} must implement class property: defaults")
@classmethod
@property
def layer_id(my_class):
"""Get the internal layer ID
Internal layer ID is not shown to users and is used to identify the
layer class when loading a SewStack.
Example:
class RunningStitchLayer(StitchLayer): ...
layer_id = RunningStitch
"""
if my_class.__name__.endswith('Layer'):
return my_class.__name__[:-5]
else:
return my_class.__name__
@property
def name(self):
return self.config.get('name', self.default_layer_name)
@name.setter
def name(self, value):
self.config.name = value
@property
def default_layer_name(self):
# defaults to the same as the layer type name but can be overridden in a child class
return self.layer_type_name
@property
def layer_type_name(self):
raise NotImplementedError(f"{self.__class__.__name__} must implement type_name property!")
@property
def enabled(self):
return self.config.get('enabled', True)
def enable(self, enabled=True):
self.config.enabled = enabled
@property
def paths(self):
return [coordinate_list_to_point_list(path) for path in self.element.paths]
@property
def stroke_color(self):
return self.element.stroke_color
@property
def fill_color(self):
return self.element.fill_color
def to_stitch_groups(self, *args):
raise NotImplementedError(f"{self.__class__.__name__} must implement to_stitch_groups()!")
def embroider(self, last_stitch_group, next_element):
return self.to_stitch_groups(last_stitch_group, next_element)
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