# -*- coding: utf-8 -*-

#***************************************************************************
#*                                                                         *
#*   Copyright (c) 2015 Yorik van Havre <yorik@uncreated.net>              *
#*                                                                         *
#*   This program is free software; you can redistribute it and/or modify  *
#*   it under the terms of the GNU Lesser General Public License (LGPL)    *
#*   as published by the Free Software Foundation; either version 2 of     *
#*   the License, or (at your option) any later version.                   *
#*   for detail see the LICENCE text file.                                 *
#*                                                                         *
#*   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 Library General Public License for more details.                  *
#*                                                                         *
#*   You should have received a copy of the GNU Library General Public     *
#*   License along with this program; if not, write to the Free Software   *
#*   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
#*   USA                                                                   *
#*                                                                         *
#***************************************************************************

import FreeCAD,FreeCADGui,Path,PathGui
from PySide import QtCore,QtGui

"""Path Array object and FreeCAD command"""

# Qt tanslation handling
try:
    _encoding = QtGui.QApplication.UnicodeUTF8
    def translate(context, text, disambig=None):
        return QtGui.QApplication.translate(context, text, disambig, _encoding)
except AttributeError:
    def translate(context, text, disambig=None):
        return QtGui.QApplication.translate(context, text, disambig)


class ObjectArray:
    

    def __init__(self,obj):
        obj.addProperty("App::PropertyLink","Base","Path","The path to array")
        obj.addProperty("App::PropertyVectorDistance","Offset","Path","The spacing between the array copies")
        obj.addProperty("App::PropertyInteger","Copies","Path","The number of copies")
        obj.Proxy = self

    def __getstate__(self):
        return None

    def __setstate__(self,state):
        return None
        
    def execute(self,obj):
        if obj.Base:
            if not obj.Base.isDerivedFrom("Path::Feature"):
                return
            if not obj.Base.Path:
                return
            
            # build copies
            basepath = obj.Base.Path
            output = basepath.toGCode()
            pl = FreeCAD.Placement()
            if obj.Offset != FreeCAD.Vector():
                for i in range(obj.Copies):
                    pl.move(obj.Offset)
                    np = Path.Path([cm.transform(pl) for cm in basepath.Commands])
                    output += np.toGCode()

            #print output
            path = Path.Path(output)
            obj.Path = path


class ViewProviderArray:


    def __init__(self,vobj):
        vobj.Proxy = self
        
    def attach(self,vobj):
        self.Object = vobj.Object
        return

    def __getstate__(self):
        return None

    def __setstate__(self,state):
        return None
        
    def claimChildren(self):
        if hasattr(self,"Object"):
            if hasattr(self.Object,"Base"):
                if self.Object.Base:
                    return self.Object.Base
        return []


class CommandPathArray:


    def GetResources(self):
        return {'Pixmap'  : 'Path-Array',
                'MenuText': QtCore.QT_TRANSLATE_NOOP("Path_Array","Array"),
                'ToolTip': QtCore.QT_TRANSLATE_NOOP("Path_Array","Creates an array from a selected path")}

    def IsActive(self):
        return not FreeCAD.ActiveDocument is None
        
    def Activated(self):
        
        # check that the selection contains exactly what we want
        selection = FreeCADGui.Selection.getSelection()
        if len(selection) != 1:
            FreeCAD.Console.PrintError(translate("Path_Array","Please select exactly one path object\n"))
            return
        if not(selection[0].isDerivedFrom("Path::Feature")):
            FreeCAD.Console.PrintError(translate("Path_Array","Please select exactly one path object\n"))
            return
        
        # if everything is ok, execute and register the transaction in the undo/redo stack
        FreeCAD.ActiveDocument.openTransaction("Create Array")
        FreeCADGui.addModule("PathScripts.PathArray")
        FreeCADGui.addModule("PathScripts.PathUtils")
        FreeCADGui.doCommand('obj = FreeCAD.ActiveDocument.addObject("Path::FeaturePython","Array")')
        FreeCADGui.doCommand('PathScripts.PathArray.ObjectArray(obj)')
        FreeCADGui.doCommand('obj.Base = (FreeCAD.ActiveDocument.' + selection[0].Name + ')')
        #FreeCADGui.doCommand('PathScripts.PathArray.ViewProviderArray(obj.ViewObject)')
        FreeCADGui.doCommand('obj.ViewObject.Proxy = 0')
        FreeCADGui.doCommand('PathScripts.PathUtils.addToProject(obj)')
        FreeCAD.ActiveDocument.commitTransaction()
        FreeCAD.ActiveDocument.recompute()


if FreeCAD.GuiUp: 
    # register the FreeCAD command
    FreeCADGui.addCommand('Path_Array',CommandPathArray())