/************************************************************************
 **
 **  @file   vabstractnode.cpp
 **  @author Roman Telezhynskyi <dismine(at)gmail.com>
 **  @date   November 15, 2013
 **
 **  @brief
 **  @copyright
 **  This source code is part of the Valentine project, a pattern making
 **  program, whose allow create and modeling patterns of clothing.
 **  Copyright (C) 2013 Valentina project
 **  <https://bitbucket.org/dismine/valentina> All Rights Reserved.
 **
 **  Valentina 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.
 **
 **  Valentina 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 Valentina.  If not, see <http://www.gnu.org/licenses/>.
 **
 *************************************************************************/

#include "vabstractnode.h"
#include <QDebug>

const QString VAbstractNode::AttrIdObject = QStringLiteral("idObject");
const QString VAbstractNode::AttrIdTool = QStringLiteral("idTool");

//---------------------------------------------------------------------------------------------------------------------
VAbstractNode::VAbstractNode(VPattern *doc, VContainer *data, const quint32 &id, const quint32 &idNode,
                             const quint32 &idTool, QObject *parent)
    : VAbstractTool(doc, data, id, parent), idNode(idNode), idTool(idTool)
{
    _referens = 0;
}

//---------------------------------------------------------------------------------------------------------------------
void VAbstractNode::DeleteNode()
{
    if (_referens <= 1)
    {
        //remove from xml file
        QDomElement domElement = doc->elementById(QString().setNum(id));
        if (domElement.isElement())
        {
            QDomNode element = domElement.parentNode();
            if (element.isNull() == false)
            {
                if (element.isElement())
                {
                    RemoveReferens();//deincrement referens
                    element.removeChild(domElement);//remove form file
                    emit toolhaveChange();//set enabled save button
                }
                else
                {
                    qDebug()<<"parent isn't element"<<Q_FUNC_INFO;
                }
            }
            else
            {
                qDebug()<<"parent isNull"<<Q_FUNC_INFO;
            }
        }
        else
        {
            qDebug()<<"Can't get element by id form file = "<<id<<Q_FUNC_INFO;
        }
    }
}

//---------------------------------------------------------------------------------------------------------------------
void VAbstractNode::AddToModeling(const QDomElement &domElement)
{
    QDomElement modelingElement;
    bool ok = doc->GetActivNodeElement(VPattern::TagModeling, modelingElement);
    if (ok)
    {
        modelingElement.appendChild(domElement);
    }
    else
    {
        qCritical()<<tr("Can't find tag Modeling")<< Q_FUNC_INFO;
    }
    emit toolhaveChange();
}

//---------------------------------------------------------------------------------------------------------------------
void VAbstractNode::decrementReferens()
{
    if (_referens > 0)
    {
        --_referens;
    }
    if (_referens <= 0)
    {
        doc->DecrementReferens(idNode);
        QDomElement domElement = doc->elementById(QString().setNum(id));
        if (domElement.isElement())
        {
            QDomNode element = domElement.parentNode();
            if (element.isNull() == false)
            {
                element.removeChild(domElement);
            }
        }
    }
}