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# Authors: see git history
#
# Copyright (c) 2022 Authors
# Licensed under the GNU GPL version 3.0 or later. See the file LICENSE for details.
import inkex
from ..commands import add_layer_commands
from ..i18n import _
from ..svg.tags import INKSCAPE_GROUPMODE, INKSCAPE_LABEL
from .base import InkstitchExtension
class DisplayStackingOrder(InkstitchExtension):
def __init__(self, *args, **kwargs):
InkstitchExtension.__init__(self, *args, **kwargs)
self.arg_parser.add_argument("-s", "--font_size", type=int, default=4, dest="font_size")
def effect(self):
layer = self.create_layer()
nodes = self.get_nodes()
for i, node in enumerate(nodes):
if node.style['fill'] != 'none':
position = node.bounding_box(node.composed_transform()).minimum
self.insert_stacking_num(layer, i + 1, position)
else:
path = node.get_path().transform(node.composed_transform())
position = next(path.end_points)
self.insert_stacking_num(layer, i + 1, position)
add_layer_commands(layer, ["ignore_layer"])
# remove layer if empty
if len(layer) == 0:
self.svg.remove(layer)
def insert_stacking_num(self, layer, num, position):
text = inkex.TextElement(attrib={
'x': str(position[0]),
'y': str(position[1])
})
text.style = inkex.Style(f"text-anchor: middle;text-align: center;dominant-baseline: middle;font-size: { self.options.font_size }")
tspan = inkex.Tspan()
tspan.text = str(num)
text.add(tspan)
layer.add(text)
def create_layer(self):
layer = self.svg.find(".//*[@id='__inkstitch_stacking_order__']")
# Remove the existing layer
if layer is not None:
layer.getparent().remove(layer)
layer = inkex.Group(attrib={
'id': '__inkstitch_stacking_order__',
INKSCAPE_LABEL: _('Stacking Order'),
INKSCAPE_GROUPMODE: 'layer',
})
self.svg.append(layer)
return layer
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