editor/button.cpp

#include "button.h"
#include <QPainter>
#include <QStyleOptionGraphicsItem>
#include <QMenu>

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

}

QRectF Button::boundingRect() const
{
    return QRectF(0, 0, 50, 50);
}

void Button::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *)
{
        painter->setRenderHint(QPainter::Antialiasing);

        if (type_ == "按钮") {
            painter->drawRect(0,0,50,50);
        }
        if (!registerId_.isEmpty()) {
            painter->save();
            painter->setFont(QFont("Arial", 8));
            painter->setPen(Qt::black);
            QString text;
            if (registerValue_ > 0)
            {
                text = QString("%1\nON").arg(registerId());
            }
            else
            {
                text = QString("%1\nOFF").arg(registerId());
            }
            painter->drawText(QRectF(13, 13, 26, 26), Qt::AlignCenter, 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());
        }
}

void Button::addMenuActions(QMenu *menu)
{
    menu->addAction("置ON");
    menu->addAction("置OFF");
}

void Button::handleMenuAction(QAction *action)
{
    if (action->text() == "复制") {
        emit requestCopy(this);
    }
    if (action->text() == "删除") {
        emit requestDelete(this);
    }
    if (action->text() == "对象"){
        emit requestBindRegister(this);
    }
    if (action->text() == "重置"){
        emit requestReset(this);
    }
    if (action->text() == "置ON"){
        emit requestSetON(this, true);
    }
    if (action->text() == "置OFF"){
        emit requestSetON(this, false);
    }
}