inkstitch/inkstitch/extensions.py

104 wiersze
3.1 KiB
Python

import inkex
from .elements import AutoFill, Fill, Stroke, SatinColumn, Polyline, EmbroideryElement
from . import SVG_POLYLINE_TAG, SVG_GROUP_TAG, SVG_DEFS_TAG, INKSCAPE_GROUPMODE, EMBROIDERABLE_TAGS, PIXELS_PER_MM
class InkstitchExtension(inkex.Effect):
"""Base class for Inkstitch extensions. Not intended for direct use."""
def hide_all_layers(self):
for g in self.document.getroot().findall(SVG_GROUP_TAG):
if g.get(INKSCAPE_GROUPMODE) == "layer":
g.set("style", "display:none")
def no_elements_error(self):
if self.selected:
inkex.errormsg(_("No embroiderable paths selected."))
else:
inkex.errormsg(_("No embroiderable paths found in document."))
inkex.errormsg(_("Tip: use Path -> Object to Path to convert non-paths before embroidering."))
def descendants(self, node):
nodes = []
element = EmbroideryElement(node)
if element.has_style('display') and element.get_style('display') is None:
return []
if node.tag == SVG_DEFS_TAG:
return []
for child in node:
nodes.extend(self.descendants(child))
if node.tag in EMBROIDERABLE_TAGS:
nodes.append(node)
return nodes
def get_nodes(self):
"""Get all XML nodes, or just those selected
effect is an instance of a subclass of inkex.Effect.
"""
if self.selected:
nodes = []
for node in self.document.getroot().iter():
if node.get("id") in self.selected:
nodes.extend(self.descendants(node))
else:
nodes = self.descendants(self.document.getroot())
return nodes
def detect_classes(self, node):
if node.tag == SVG_POLYLINE_TAG:
return [Polyline]
else:
element = EmbroideryElement(node)
if element.get_boolean_param("satin_column"):
return [SatinColumn]
else:
classes = []
if element.get_style("fill"):
if element.get_boolean_param("auto_fill", True):
classes.append(AutoFill)
else:
classes.append(Fill)
if element.get_style("stroke"):
classes.append(Stroke)
if element.get_boolean_param("stroke_first", False):
classes.reverse()
return classes
def get_elements(self):
self.elements = []
for node in self.get_nodes():
classes = self.detect_classes(node)
self.elements.extend(cls(node) for cls in classes)
if self.elements:
return True
else:
self.no_elements_error()
return False
def elements_to_patches(self, elements):
patches = []
for element in elements:
if patches:
last_patch = patches[-1]
else:
last_patch = None
patches.extend(element.embroider(last_patch))
return patches