#include <QPainter>
#include "graphicsItem/itemPort.h"
#include "graphicsItem/handleRect.h"

ItemPort::ItemPort(QGraphicsItem *parent,QString uuid)
    : HandleRect(parent),_uuid(uuid)
{
    _pos = P_top;
    _ptr = nullptr;
}

ItemPort::~ItemPort()
{
}

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

    painter->setPen(Qt::SolidLine);
    painter->setRenderHint(QPainter::Antialiasing, true);

    QPolygonF Triangle;
    QRectF rec = boundingRect();
    qreal left = rec.left();
    qreal right = rec.right();
    qreal width = rec.width();
    qreal height = rec.height();
    qreal bottom = rec.bottom();
    painter->setBrush(Qt::black);
    if((_pos == P_top && m_type == T_lineIn) || (_pos == P_down && m_type == T_lineOut) )       //从上入或者从下出都是向下
    {
        Triangle.append(QPointF(left,0));
        Triangle.append(QPointF(right,0));
        Triangle.append(QPointF(left+width*0.5,bottom));
        painter->drawPolygon(Triangle);
    }
    else if((_pos == P_top && m_type == T_lineOut) || (_pos == P_down && m_type == T_lineIn) )       //从上出或者从下入都是向上
    {
        Triangle.append(QPointF(left,bottom));
        Triangle.append(QPointF(right,bottom));
        Triangle.append(QPointF(left+width*0.5,0));
        painter->drawPolygon(Triangle);
    }
    else if((_pos == P_left && m_type == T_lineIn) || (_pos == P_right && m_type == T_lineOut) )       //从左入或者从右出都是向右
    {
        Triangle.append(QPointF(0,0));
        Triangle.append(QPointF(0,bottom));
        Triangle.append(QPointF(right,height*0.5));
        painter->drawPolygon(Triangle);
    }
    else if((_pos == P_left && m_type == T_lineOut) || (_pos == P_right && m_type == T_lineIn) )       //从左出或者从右入都是向左
    {
        Triangle.append(QPointF(right,0));
        Triangle.append(QPointF(right,bottom));
        Triangle.append(QPointF(0,height*0.5));
        painter->drawPolygon(Triangle);
    }
    else if(m_type == T_lineInOut)
    {
        painter->drawEllipse(boundingRect().center(), HNDLE_SIZE / 4, HNDLE_SIZE / 4);
    }
    else if(m_type == T_newTral)
    {
        painter->drawEllipse(boundingRect().center(), HNDLE_SIZE / 4, HNDLE_SIZE / 4);
    }
}