editor/contact.cpp

#include "contact.h"
#include <QPainter>
#include <QStyleOptionGraphicsItem>

Contact::Contact(const QString &type) : Item(type)
{

}

void Contact::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *)
{
    painter->setRenderHint(QPainter::Antialiasing);
    if (type_ == "常开") {
        if (state()) {
            painter->setPen(QPen(Qt::green, 2)); // 激活状态
        } else {
            painter->setPen(QPen(Qt::black, 1)); // 未激活状态
        }
        painter->drawLine(-12, 0, -4, 0);
        painter->drawLine(-4, -8, -4, 8);
        painter->drawLine(4, -8, 4, 8);
        painter->drawLine(4, 0, 12, 0);

        // 锚点
        painter->setBrush(Qt::darkGray);
        painter->setPen(Qt::NoPen);
        painter->drawEllipse(QPointF(-18, 0), 4, 4);   // 左
        painter->drawEllipse(QPointF(18, 0), 4, 4);    // 右
    }
    else if (type_ == "常闭") {
        if (!state()) {
            painter->setPen(QPen(Qt::green, 2)); // 激活状态
        } else {
            painter->setPen(QPen(Qt::black, 1)); // 未激活状态
        }
        painter->drawLine(-15, -10, 15, 10); // 对角线
        painter->drawLine(-12, 0, -4, 0);
        painter->drawLine(-4, -8, -4, 8);
        painter->drawLine(4, -8, 4, 8);
        painter->drawLine(4, 0, 12, 0);

        // 锚点
        painter->setBrush(Qt::darkGray);
        painter->setPen(Qt::NoPen);
        painter->drawEllipse(QPointF(-18, 0), 4, 4);   // 左
        painter->drawEllipse(QPointF(18, 0), 4, 4);    // 右
    }

    if (!registerId_.isEmpty()) {
        painter->save();
        painter->setFont(QFont("Arial", 8));
        painter->setPen(Qt::black);
        // 在元件底部居中绘制寄存器ID
        QString text = QString("%1: %2").arg(registerId()).arg(registerValue_);
        painter->drawText(boundingRect(), Qt::AlignBottom | Qt::AlignHCenter, text);
        painter->restore();
    }
    if (option->state & QStyle::State_Selected) {
        QPen pen(Qt::DashLine);
        pen.setColor(Qt::blue);
        pen.setWidth(2);
        painter->setPen(pen);
        painter->setBrush(Qt::NoBrush);
        painter->drawRect(boundingRect());
    }
}

bool Contact::state() const
{
    return registerValue_ > 0;
}