# ***************************************************************************
# *                                                                         *
# *   Copyright (c) 2016 - Bernd Hahnebach <bernd@bimstatik.org>            *
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# *   GNU Library General Public License for more details.                  *
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__title__ = "Clear the FemMesh of a FEM mesh object"
__author__ = "Bernd Hahnebach"
__url__ = "http://www.freecadweb.org"

## @package CommandFemMeshClear
#  \ingroup FEM

import FreeCAD
from .FemCommands import FemCommands
import FreeCADGui
from PySide import QtCore


class _CommandFemMeshClear(FemCommands):
    "the FEM_MeshClear command definition"
    def __init__(self):
        super(_CommandFemMeshClear, self).__init__()
        self.resources = {'Pixmap': 'fem-femmesh-clear-mesh',
                          'MenuText': QtCore.QT_TRANSLATE_NOOP("FEM_MeshClear", "Clear FEM mesh"),
                          # 'Accel': "Z, Z",
                          'ToolTip': QtCore.QT_TRANSLATE_NOOP("FEM_MeshClear", "Clear the Mesh of a FEM mesh object")}
        self.is_active = 'with_femmesh'

    def Activated(self):
        sel = FreeCADGui.Selection.getSelection()
        if len(sel) == 1 and sel[0].isDerivedFrom("Fem::FemMeshObject"):
            FreeCAD.ActiveDocument.openTransaction("Clear FEM mesh")
            FreeCADGui.addModule("Fem")
            FreeCADGui.doCommand("App.ActiveDocument." + sel[0].Name + ".FemMesh = Fem.FemMesh()")
            FreeCADGui.doCommand("App.ActiveDocument.recompute()")

        FreeCADGui.Selection.clearSelection()

FreeCADGui.addCommand('FEM_MeshClear', _CommandFemMeshClear())