/*
 * @file ModulePortGraphicsItem.cpp
 * @brief 模块端口
 */
#include <QPainter>
#include <QGradient>
#include <QtDebug>
#include <QGraphicsSceneMouseEvent>

#include "ModulePortGraphicsItem.h"

using namespace pai::graphics2d;

ModulePortGraphicsItem::ModulePortGraphicsItem(pai::graphics2d::PaiModuleStyle* pStyle,
                                               const QPointF& center,qreal radius,
                                               PortDirection portDirection) :
    m_pStyle(pStyle),
    m_center(center),
    m_diameter(radius),
    m_selected(false),
    m_OnHovering(false),
    m_light(false),
    m_PortDirection(portDirection)
{
    m_path.addEllipse(center, radius / 2, radius / 2);
}

ModulePortGraphicsItem::~ModulePortGraphicsItem()
{
    // TODO Auto-generated destructor stub
}
QRectF ModulePortGraphicsItem::boundingRect() const
{
    //暂时采用场景坐标
    const int hostSpot = 3;
    return QRectF(m_center.x() - m_diameter / 2 - hostSpot, m_center.y()
                  - m_diameter / 2 - hostSpot, m_diameter + 2 * hostSpot, m_diameter + 2 * hostSpot);
}

void ModulePortGraphicsItem::paint(QPainter *pPainter, const QStyleOptionGraphicsItem */*pOption*/, QWidget */*pWidget*/)
{
    pPainter->save();
    pai::graphics2d::PaiModuleStyle::STATUS eStatus = pai::graphics2d::PaiModuleStyle::Normal;

    if (m_selected || m_light)//选中的优先级最高，无论什么状态，选中的绘制都一样
    {
        eStatus = pai::graphics2d::PaiModuleStyle::Selected;
    }
    else
    {
        if (m_OnHovering)
        {
            eStatus = pai::graphics2d::PaiModuleStyle::MouseOn;
        }
    }
    QRadialGradient radialGrad(m_center, m_diameter / 2 - 1, QPointF(m_center.x(), m_center.y()));
    QColor beginColor;
    QColor endColor;
    if(m_pStyle != NULL)
    {
        m_pStyle->GetPortColor(eStatus, beginColor, endColor);
    }
    radialGrad.setColorAt(0, beginColor);
    radialGrad.setColorAt(1, endColor);

    QColor marginColor;
    if(m_pStyle != NULL)
    {
        m_pStyle->GetPortMarginColor(eStatus, marginColor);
    }

    //开始绘制
    QBrush oldBrush = pPainter->brush();
    QPen oldPen = pPainter->pen();

    QBrush brush(radialGrad);
    QPen pen(marginColor);
    pen.setWidth(1.0);
    pPainter->setBrush(brush);
    pPainter->setPen(pen);
    pPainter->drawPath(m_path);

    pPainter->setPen(oldPen);
    pPainter->setBrush(oldBrush);

    pPainter->restore();
}

void ModulePortGraphicsItem::SetPortSelected(bool selected)
{
    m_selected = selected;
}

void ModulePortGraphicsItem::hoverEnterEvent(QGraphicsSceneHoverEvent */*pEvent*/)
{
    m_OnHovering = true;

}
void ModulePortGraphicsItem::hoverLeaveEvent(QGraphicsSceneHoverEvent */*pEvent*/)
{
    m_OnHovering = false;
}

void ModulePortGraphicsItem::mouseReleaseEvent(QGraphicsSceneMouseEvent */*pEvent*/)
{
    m_selected = !m_selected;
}