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path: root/share/extensions/jessyink_master_slide.py
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#!/usr/bin/env python
#
# Copyright 2008, 2009 Hannes Hochreiner
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see http://www.gnu.org/licenses/.
#
"""
Jessyink Set Master Slide
"""

import inkex

from jessyink_install import JessyInkMixin, _


class MasterSlide(JessyInkMixin, inkex.EffectExtension):
    """Effect Extension for master slide"""

    def add_arguments(self, pars):
        self.arg_parser.add_argument("--tab")
        self.arg_parser.add_argument("--layerName", default="")

    def effect(self):
        self.is_installed()
        # Remove old master slide property
        for node in self.svg.xpath("//*[@jessyink:masterSlide='masterSlide']"):
            node.set("jessyink:masterSlide", None)

        # Set new master slide.
        if self.options.layerName != "":
            nodes = self.svg.xpath(
                f"//*[@inkscape:groupmode='layer' "
                f"and @inkscape:label='{self.options.layerName}']"
            )
            if not nodes:
                inkex.errormsg(
                    _("Layer not found. Removed current master slide selection.\n")
                )
            elif len(nodes) > 1:
                inkex.errormsg(
                    _(
                        "More than one layer with this name found. "
                        "Removed current master slide selection.\n"
                    )
                )
            else:
                nodes[0].set("jessyink:masterSlide", "masterSlide")


if __name__ == "__main__":
    MasterSlide().run()