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# Authors: see git history
#
# Copyright (c) 2010 Authors
# Licensed under the GNU GPL version 3.0 or later. See the file LICENSE for details.
import inkex
from shapely.geometry import Point
from ..elements import SatinColumn
from ..i18n import _
from ..svg import get_correction_transform
from .base import InkstitchExtension
class CutSatin(InkstitchExtension):
def effect(self):
if not self.get_elements():
return
if not self.svg.selection or not any([isinstance(element, SatinColumn) for element in self.elements]):
inkex.errormsg(_("Please select one or more satin columns to cut."))
return
for satin in self.elements:
if isinstance(satin, SatinColumn):
old_satin = satin
self.split = False
transform = get_correction_transform(satin.node)
parent = satin.node.getparent()
self.index = parent.index(satin.node)
self.label_index = 0
commands = satin.get_command("satin_cut_point", True)
if commands is None:
# L10N will have the satin's id prepended, like this:
# path12345: error: this satin column does not ...
satin.fatal(_('this satin column does not have a "satin column cut point" command attached to it. '
'Please use the "Attach commands" extension and attach the "Satin Column cut point" command first.'))
commands.sort(key=lambda command: satin.center_line.project(Point(command.target_point)), reverse=True)
satins = [None, None]
for command in commands:
satins = self.split_satin(satin, command)
if None in satins:
continue
self.insert_satin(satins[1], parent, transform)
satin = satins[0]
if satins[0] is not None:
self.insert_satin(satins[0], parent, transform)
if self.split:
old_satin.node.delete()
def insert_satin(self, satin, parent, transform):
if satin is None:
return
node = satin.node
label = node.label or satin.node.get_id()
node.set('transform', transform)
parent.insert(self.index, node)
node.set('inkscape:label', f'{label} {self.label_index}')
node.apply_transform()
self.label_index += 1
self.split = True
def split_satin(self, satin, command):
split_point = command.target_point
command_group = command.use.getparent()
if command_group is not None and command_group.get('id').startswith('command_group'):
command_group.delete()
else:
command.use.delete()
command.connector.delete()
new_satins = satin.split(split_point)
return new_satins
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