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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.
from ..svg.tags import INKSCAPE_GROUPMODE, INKSTITCH_ATTRIBS, SVG_GROUP_TAG
from .base import InkstitchExtension
class StitchPlanPreviewUndo(InkstitchExtension):
def effect(self):
reset_stitch_plan(self.document.getroot())
def reset_stitch_plan(svg, delete_stitch_plan=True):
# delete old stitch plan
layer = svg.find(".//*[@id='__inkstitch_stitch_plan__']")
# get previously invisible layers (they still should be hidden afterwards)
if layer is not None:
display_method = layer.get(INKSTITCH_ATTRIBS['layer_visibility'], 'unchanged')
invisible_layers = layer.get(INKSTITCH_ATTRIBS['invisible_layers'], '').split(",")
if delete_stitch_plan:
layer.getparent().remove(layer)
if display_method == "unchanged":
return
# if there are layers with reduced opacity, remove opacity attribute or unhide hidden layers
for g in svg.findall(SVG_GROUP_TAG):
style = g.specified_style()
if (g.get(INKSCAPE_GROUPMODE) == "layer" and float(style.get('opacity', 1)) == 0.4 or style.get('display', 'inline') == 'none'):
if g.get_id() in invisible_layers:
continue
g.style['opacity'] = 1
g.style['display'] = 'inline'
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