#include "rectangle.h"

Rectangle::Rectangle()
    : Line()
{
    m_rectangle.setTopLeft(QPoint(10, 50));
    m_rectangle.setTopRight(QPoint(30, 50));
    m_rectangle.setBottomLeft(QPoint(10, 70));
    m_rectangle.setBottomRight(QPoint(30, 70));
}

bool Rectangle::isHit(const QPoint &clickPoint)
{
    return m_rectangle.contains(clickPoint);
}

void Rectangle::draw(QPainter *painter)
{
    if (m_selected)
    {
        QPen penTemp(Qt::DotLine);
        penTemp.setColor(Qt::red);
        painter->setPen(penTemp);

        painter->drawEllipse(m_rectangle.topLeft(), 5, 5);
        painter->drawEllipse(m_rectangle.topRight(), 5, 5);
        painter->drawEllipse(m_rectangle.bottomLeft(), 5, 5);
        painter->drawEllipse(m_rectangle.bottomRight(), 5, 5);
    }
    else
    {
        QPen penNormal(Qt::SolidLine);
        penNormal.setColor(Qt::black);
        painter->setPen(penNormal);
    }

    painter->drawRect(m_rectangle);
}


void Rectangle::move(const QPoint &oldPoint, const QPoint &newPoint)
{
    if (m_selected)
    {
        QPoint offset = newPoint - oldPoint;
        QVector3D vecOld(oldPoint);

        if (vecOld.distanceToPoint(QVector3D(m_rectangle.topLeft())) < 5)
        {
            m_rectangle.setTopLeft(m_rectangle.topLeft() + offset);
        }
        else if (vecOld.distanceToPoint(QVector3D(m_rectangle.topRight())) < 5)
        {
            m_rectangle.setTopRight(m_rectangle.topRight() + offset);
        }
        else if (vecOld.distanceToPoint(QVector3D(m_rectangle.bottomLeft())) < 5)
        {
            m_rectangle.setBottomLeft(m_rectangle.bottomLeft() + offset);
        }
        else if (vecOld.distanceToPoint(QVector3D(m_rectangle.bottomRight())) < 5)
        {
            m_rectangle.setBottomRight(m_rectangle.bottomRight() + offset);
        }
        else
        {
            m_rectangle.setTopLeft(m_rectangle.topLeft() + offset);
            m_rectangle.setBottomRight(m_rectangle.bottomRight() + offset);
        }
    }
}


bool Rectangle::attributesToDom(QDomDocument *doc, QDomElement &e)
{
    if (e.isNull())
    {
        qDebug() << className() << "::attributesToDom Error: NULL element passed.";
        return false;
    }
    else
    {
        e.setAttribute("x1", m_rectangle.topLeft().rx());
        e.setAttribute("y1", m_rectangle.topLeft().ry());
        e.setAttribute("x2", m_rectangle.bottomRight().rx());
        e.setAttribute("y2", m_rectangle.bottomRight().ry());

        return true;
    }
}

bool Rectangle::attributesFromDom(const QDomElement &e)
{
    if (e.isNull())
    {
        qDebug() << className() << "::attributesFromDom Error: NULL element passed.";
        return false;
    }
    else
    {
        m_rectangle.setTopLeft(QPoint(e.attribute("x1", "0").toInt(),
                                      e.attribute("y1", "0").toInt()));
        m_rectangle.setBottomRight(QPoint(e.attribute("x2", "0").toInt(),
                                          e.attribute("y2", "0").toInt()));

        return true;
    }
}

QString Rectangle::className()
{
    return "Rectangle";
}