/***************************************************************************
 *   Copyright (c) 2006 Werner Mayer <wmayer[at]users.sourceforge.net>     *
 *                                                                         *
 *   This file is part of the FreeCAD CAx development system.              *
 *                                                                         *
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU Library General Public           *
 *   License as published by the Free Software Foundation; either          *
 *   version 2 of the License, or (at your option) any later version.      *
 *                                                                         *
 *   This library  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 library; see the file COPYING.LIB. If not,    *
 *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
 *   Suite 330, Boston, MA  02111-1307, USA                                *
 *                                                                         *
 ***************************************************************************/


#include "PreCompiled.h"

#ifndef _PreComp_
# include <cmath>
# include <iostream>
# include <algorithm>
#endif

#include <Base/Exception.h>
#include <Base/Matrix.h>
#include <Base/Stream.h>
#include <Base/Writer.h>

#include "PropertyPointKernel.h"
#include "PointsPy.h"

using namespace Points;

TYPESYSTEM_SOURCE(Points::PropertyPointKernel , App::PropertyComplexGeoData);

PropertyPointKernel::PropertyPointKernel()
    : _cPoints(new PointKernel())
{

}

PropertyPointKernel::~PropertyPointKernel()
{
}

void PropertyPointKernel::setValue(const PointKernel& m)
{
    aboutToSetValue();
    *_cPoints = m;
    hasSetValue();
}

const PointKernel& PropertyPointKernel::getValue(void) const 
{
    return *_cPoints;
}

const Data::ComplexGeoData* PropertyPointKernel::getComplexData() const
{
    return _cPoints;
}

Base::BoundBox3d PropertyPointKernel::getBoundingBox() const
{
    Base::BoundBox3d box;
    for (PointKernel::const_iterator it = _cPoints->begin(); it != _cPoints->end(); ++it)
        box.Add(*it);
    return box;
}

void PropertyPointKernel::getFaces(std::vector<Base::Vector3d> &Points,
                                   std::vector<Data::ComplexGeoData::Facet> &Topo,
                                   float Accuracy, uint16_t flags) const
{
    _cPoints->getFaces(Points, Topo, Accuracy, flags);
}

PyObject *PropertyPointKernel::getPyObject(void)
{
    PointsPy* points = new PointsPy(&*_cPoints);
    points->setConst(); // set immutable
    return points;
}

void PropertyPointKernel::setPyObject(PyObject *value)
{
    if (PyObject_TypeCheck(value, &(PointsPy::Type))) {
        PointsPy  *pcObject = (PointsPy*)value;
        setValue( *(pcObject->getPointKernelPtr()));
    }
    else {
        std::string error = std::string("type must be 'Points', not ");
        error += value->ob_type->tp_name;
        throw Base::TypeError(error);
    }
}

void PropertyPointKernel::Save (Base::Writer &writer) const
{
    _cPoints->Save(writer);
}

void PropertyPointKernel::Restore(Base::XMLReader &reader)
{
    reader.readElement("Points");
    std::string file (reader.getAttribute("file") );

    if (!file.empty()) {
        // initate a file read
        reader.addFile(file.c_str(),this);
    }
    if(reader.DocumentSchema > 3)
    {
        std::string Matrix (reader.getAttribute("mtrx") );
        Base::Matrix4D mtrx;
        mtrx.fromString(Matrix);

        aboutToSetValue();
        _cPoints->setTransform(mtrx);
        hasSetValue();
    }
}

void PropertyPointKernel::SaveDocFile (Base::Writer &writer) const
{
    // does nothing
}

void PropertyPointKernel::RestoreDocFile(Base::Reader &reader)
{
    aboutToSetValue();
    _cPoints->RestoreDocFile(reader);
    hasSetValue();
}

App::Property *PropertyPointKernel::Copy(void) const 
{
    PropertyPointKernel* prop = new PropertyPointKernel();
    (*prop->_cPoints) = (*this->_cPoints);
    return prop;
}

void PropertyPointKernel::Paste(const App::Property &from)
{
    aboutToSetValue();
    const PropertyPointKernel& prop = dynamic_cast<const PropertyPointKernel&>(from);
    *(this->_cPoints) = *(prop._cPoints);
    hasSetValue();
}

unsigned int PropertyPointKernel::getMemSize (void) const
{
    return sizeof(Base::Vector3f) * this->_cPoints->size();
}

PointKernel* PropertyPointKernel::startEditing()
{
    aboutToSetValue();
    return static_cast<PointKernel*>(_cPoints);
}

void PropertyPointKernel::finishEditing()
{
    hasSetValue();
}

void PropertyPointKernel::removeIndices( const std::vector<unsigned long>& uIndices )
{
    // We need a sorted array
    std::vector<unsigned long> uSortedInds = uIndices;
    std::sort(uSortedInds.begin(), uSortedInds.end());

    assert( uSortedInds.size() <= _cPoints->size() );
    if ( uSortedInds.size() > _cPoints->size() )
        return;

    PointKernel kernel;
    kernel.setTransform(_cPoints->getTransform());
    kernel.reserve(_cPoints->size() - uSortedInds.size());

    std::vector<unsigned long>::iterator pos = uSortedInds.begin();
    unsigned long index = 0;
    for (PointKernel::const_iterator it = _cPoints->begin(); it != _cPoints->end(); ++it, ++index) {
        if (pos == uSortedInds.end())
            kernel.push_back( *it );
        else if (index != *pos)
            kernel.push_back( *it );
        else 
            ++pos;
    }

    setValue(kernel);
}

void PropertyPointKernel::transformGeometry(const Base::Matrix4D &rclMat)
{
    aboutToSetValue();
    _cPoints->transformGeometry(rclMat);
    hasSetValue();
}