/************************************************************************
 **
 **  @file   vistoolpointofintersection.cpp
 **  @author Roman Telezhynskyi <dismine(at)gmail.com>
 **  @date   13 8, 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 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 "vistoolpointofintersection.h"

#include <QGraphicsEllipseItem>
#include <QGraphicsLineItem>
#include <QLine>
#include <QPointF>
#include <QSharedPointer>
#include <Qt>
#include <new>

#include "../ifc/ifcdef.h"
#include "../vgeometry/vpointf.h"
#include "../vpatterndb/vcontainer.h"
#include "../visualization.h"
#include "visline.h"

//---------------------------------------------------------------------------------------------------------------------
VisToolPointOfIntersection::VisToolPointOfIntersection(const VContainer *data, QGraphicsItem *parent)
    : VisLine(data, parent), point2Id(NULL_ID), point(nullptr), axisP1(nullptr), axisP2(nullptr), axis2(nullptr)
{
    axisP1 = InitPoint(supportColor, this);
    axisP2 = InitPoint(supportColor, this); //-V656
    axis2 = InitItem<QGraphicsLineItem>(supportColor, this);

    point = InitPoint(mainColor, this);
}

//---------------------------------------------------------------------------------------------------------------------
void VisToolPointOfIntersection::RefreshGeometry()
{
    QLineF axisL1;
    if (object1Id <= NULL_ID)
    {
        axisL1 = Axis(Visualization::scenePos, 90);
        DrawLine(this, axisL1, supportColor, Qt::DashLine);
    }
    else
    {
        const QSharedPointer<VPointF> first = Visualization::data->GeometricObject<VPointF>(object1Id);
        DrawPoint(axisP1, static_cast<QPointF>(*first), supportColor);

        axisL1 = Axis(static_cast<QPointF>(*first), 90);
        DrawLine(this, axisL1, supportColor, Qt::DashLine);

        QLineF axisL2;
        if (point2Id <= NULL_ID)
        {
            axisL2 = Axis(Visualization::scenePos, 180);
            ShowIntersection(axisL1, axisL2, supportColor);
        }
        else
        {
            const QSharedPointer<VPointF> second = Visualization::data->GeometricObject<VPointF>(point2Id);
            DrawPoint(axisP2, static_cast<QPointF>(*second), supportColor);
            axisL2 = Axis(static_cast<QPointF>(*second), 180);
            ShowIntersection(axisL1, axisL2, mainColor);
        }
        DrawLine(axis2, axisL2, supportColor, Qt::DashLine);
    }
}

//---------------------------------------------------------------------------------------------------------------------
void VisToolPointOfIntersection::setPoint2Id(const quint32 &value)
{
    point2Id = value;
}

//---------------------------------------------------------------------------------------------------------------------
void VisToolPointOfIntersection::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
    const qreal scale = SceneScale(scene());

    ScalePoint(point, scale);
    ScalePoint(axisP1, scale);
    ScalePoint(axisP2, scale);
    ScalePenWidth(axis2, scale);

    VisLine::paint(painter, option, widget);
}

//---------------------------------------------------------------------------------------------------------------------
void VisToolPointOfIntersection::ShowIntersection(const QLineF &axis1, const QLineF &axis2, const QColor &color)
{
    QPointF p;
    QLineF::IntersectType intersect = axis1.intersect(axis2, &p);
    if (intersect == QLineF::UnboundedIntersection || intersect == QLineF::BoundedIntersection)
    {
        point->setVisible(true);
        DrawPoint(point, p, color);
    }
    else
    {
        point->setVisible(false);
    }
}