/***************************************************************************
 *                                                                         *
 *   Copyright (C) 2017  Seamly, LLC                                       *
 *                                                                         *
 *   https://github.com/fashionfreedom/seamly2d                             *
 *                                                                         *
 ***************************************************************************
 **
 **  Seamly2D 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.
 **
 **  Seamly2D 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 Seamly2D.  If not, see <http://www.gnu.org/licenses/>.
 **
 **************************************************************************

 ************************************************************************
 **
 **  @file   movespoint.cpp
 **  @author Roman Telezhynskyi <dismine(at)gmail.com>
 **  @date   9 6, 2014
 **
 **  @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) 2013-2015 Seamly2D project
 **  <https://github.com/fashionfreedom/seamly2d> All Rights Reserved.
 **
 **  Seamly2D 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.
 **
 **  Seamly2D 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 Seamly2D.  If not, see <http://www.gnu.org/licenses/>.
 **
 *************************************************************************/

#include "movespoint.h"

#include <QDomElement>

#include "../ifc/xml/vabstractpattern.h"
#include "../ifc/ifcdef.h"
#include "../vmisc/logging.h"
#include "../vmisc/vabstractapplication.h"
#include "../vmisc/def.h"
#include "vundocommand.h"

//---------------------------------------------------------------------------------------------------------------------
MoveSPoint::MoveSPoint(VAbstractPattern *doc, const double &x, const double &y, const quint32 &id,
                       QGraphicsScene *scene, QUndoCommand *parent)
    : VUndoCommand(QDomElement(), doc, parent), oldX(0.0), oldY(0.0), newX(x), newY(y), scene(scene)
{
    setText(tr("move single point"));
    nodeId = id;
    qCDebug(vUndo, "SPoint id %u", nodeId);

    qCDebug(vUndo, "SPoint newX %f", newX);
    qCDebug(vUndo, "SPoint newY %f", newY);

    SCASSERT(scene != nullptr)
    QDomElement domElement = doc->elementById(id, VAbstractPattern::TagPoint);
    if (domElement.isElement())
    {
        oldX = qApp->toPixel(doc->GetParametrDouble(domElement, AttrX, "0.0"));
        oldY = qApp->toPixel(doc->GetParametrDouble(domElement, AttrY, "0.0"));

        qCDebug(vUndo, "SPoint oldX %f", oldX);
        qCDebug(vUndo, "SPoint oldY %f", oldY);
    }
    else
    {
        qCDebug(vUndo, "Can't find spoint with id = %u.", nodeId);
        return;
    }
}

//---------------------------------------------------------------------------------------------------------------------
MoveSPoint::~MoveSPoint()
{}

//---------------------------------------------------------------------------------------------------------------------
void MoveSPoint::undo()
{
    qCDebug(vUndo, "Undo.");

    Do(oldX, oldY);
}

//---------------------------------------------------------------------------------------------------------------------
void MoveSPoint::redo()
{
    qCDebug(vUndo, "Redo.");

    Do(newX, newY);
}

//---------------------------------------------------------------------------------------------------------------------
bool MoveSPoint::mergeWith(const QUndoCommand *command)
{
    const MoveSPoint *moveCommand = static_cast<const MoveSPoint *>(command);
    SCASSERT(moveCommand != nullptr)
    const quint32 id = moveCommand->getSPointId();

    qCDebug(vUndo, "Mergin.");
    if (id != nodeId)
    {
        qCDebug(vUndo, "Merging canceled.");
        return false;
    }

    qCDebug(vUndo, "Mergin undo.");
    newX = moveCommand->getNewX();
    newY = moveCommand->getNewY();
    qCDebug(vUndo, "SPoint newX %f", newX);
    qCDebug(vUndo, "SPoint newY %f", newY);
    return true;
}

//---------------------------------------------------------------------------------------------------------------------
int MoveSPoint::id() const
{
    return static_cast<int>(UndoCommand::MoveSPoint);
}

//---------------------------------------------------------------------------------------------------------------------
void MoveSPoint::Do(double x, double y)
{
    qCDebug(vUndo, "Move to x %f", x);
    qCDebug(vUndo, "Move to y %f", y);

    QDomElement domElement = doc->elementById(nodeId, VAbstractPattern::TagPoint);
    if (domElement.isElement())
    {
        doc->SetAttribute(domElement, AttrX, QString().setNum(qApp->fromPixel(x)));
        doc->SetAttribute(domElement, AttrY, QString().setNum(qApp->fromPixel(y)));

        emit NeedLiteParsing(Document::LiteBlockParse);
    }
    else
    {
        qCDebug(vUndo, "Can't find spoint with id = %u.", nodeId);
        return;
    }
}
