Версия для печати темы

QRectF Element::boundingRect() const
{

    qreal  ymin = 65535;
    qreal  ymax = 0;
    qreal  xmin = 65535;
    qreal  xmax = 0;

    foreach (QPointF it, points)
    {
        if ( it.y() > ymax )
            ymax = it.y();

        if ( ymin > it.y() )
            ymin = it.y();

        if ( it.x() > xmax )
            xmax = it.x();

        if ( xmin > it.x() )
            xmin = it.x();
    }


    return QRectF( QPointF( xmin - 30, ymin - 30 ), QPointF( xmax + 30, ymax + 30 ) );

}

void Element::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
    Q_UNUSED ( option )
    Q_UNUSED ( widget )

    switch ( elementType )
    {
    case ElementAngle:
    case ElementArrow:

        FillPolygon::fillpolygon(painter,points,FillColor);
        painter->setPen(QPen(LineColor,2,Qt::SolidLine));
        painter->drawPolygon(points.toVector());

        if ( selected )
        {
            painter->setPen(QPen(Qt::red,2,Qt::DotLine));
            painter->drawPolygon(points.toVector());
        }
        switch(transformType)
        {
        case Spin:
            break;
        case SPc:
            painter->setPen(QPen(Qt::red,2,Qt::DotLine));
            painter->drawEllipse( Center,5,5);
            break;
        case SH:
            painter->setPen(QPen(Qt::red,2,Qt::DotLine));
            painter->drawLine(horizontal);
            break;
        case nonTransform:
            break;
        }

        break;
    case ElementErmitSpline:

        ErmitSpline::drawSqrSpline( painter, points, LineColor, selected );

        break;
    case ElementNone:

        break;
    }
}

    setFlag(QGraphicsItem::ItemIsMovable, true);
    setFlag(QGraphicsItem::ItemIsSelectable, true);
    setFlag(QGraphicsItem::ItemIsFocusable, true);
    setFlag(QGraphicsItem::ItemSendsGeometryChanges, true);