# SPDX-License-Identifier: LGPL-2.1-or-later

# ***************************************************************************
# *   (c) 2009, 2010 Yorik van Havre <yorik@uncreated.net>                  *
# *   (c) 2009, 2010 Ken Cline <cline@frii.com>                             *
# *   (c) 2020 Eliud Cabrera Castillo <e.cabrera-castillo@tum.de>           *
# *                                                                         *
# *   This file is part of the FreeCAD CAx development system.              *
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# *   This program is free software; you can redistribute it and/or modify  *
# *   it under the terms of the GNU Lesser General Public License (LGPL)    *
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# *   for detail see the LICENCE text file.                                 *
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# *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
# *   GNU Library General Public License for more details.                  *
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# *   You should have received a copy of the GNU Library General Public     *
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# *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
# *   USA                                                                   *
# *                                                                         *
# ***************************************************************************
"""Provides GUI tools to downgrade objects.

Downgrades 2D objects to simpler objects until it reaches
simple Edge primitives. For example, a Draft Line to wire, and then
to a series of edges.
"""
## @package gui_downgrade
# \ingroup draftguitools
# \brief Provides GUI tools to downgrade objects.

## \addtogroup draftguitools
# @{
from PySide.QtCore import QT_TRANSLATE_NOOP

import FreeCADGui as Gui
import Draft_rc
import draftguitools.gui_base_original as gui_base_original
import draftguitools.gui_tool_utils as gui_tool_utils
from draftutils.messages import _msg
from draftutils.translate import translate

# The module is used to prevent complaints from code checkers (flake8)
True if Draft_rc.__name__ else False


class Downgrade(gui_base_original.Modifier):
    """Gui Command for the Downgrade tool."""

    def GetResources(self):
        """Set icon, menu and tooltip."""

        return {
            "Pixmap": "Draft_Downgrade",
            "Accel": "D, N",
            "MenuText": QT_TRANSLATE_NOOP("Draft_Downgrade", "Downgrade"),
            "ToolTip": QT_TRANSLATE_NOOP(
                "Draft_Downgrade",
                "Downgrades the selected objects into simpler shapes.\nThe result of the operation depends on the types of objects, which may be downgraded several times in a row.\nFor example, a 3D solid is deconstructed into separate faces, wires, and then edges. Faces can also be subtracted.",
            ),
        }

    def Activated(self):
        """Execute when the command is called."""
        super().Activated(name="Downgrade")
        if not self.ui:
            return
        if not Gui.Selection.getSelection():
            self.ui.selectUi(on_close_call=self.finish)
            _msg(translate("draft", "Select an object to upgrade"))
            self.call = self.view.addEventCallback("SoEvent", gui_tool_utils.selectObject)
        else:
            self.proceed()

    def proceed(self):
        """Proceed with execution of the command after selection."""
        if self.call is not None:
            self.end_callbacks(self.call)
        if Gui.Selection.getSelection():
            Gui.addModule("Draft")
            _cmd = "Draft.downgrade"
            _cmd += "("
            _cmd += "FreeCADGui.Selection.getSelection(), "
            _cmd += "delete=True"
            _cmd += ")"
            _cmd_list = ["_objs_ = " + _cmd, "FreeCAD.ActiveDocument.recompute()"]
            self.commit(translate("draft", "Downgrade"), _cmd_list)
        self.finish()


Gui.addCommand("Draft_Downgrade", Downgrade())

## @}