commicon.cpp
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#include "commicon.h"
#include <QPainter>
#include <QPaintEvent>
#include "udphandler.h"
CommIcon::CommIcon(QWidget *parent) : QWidget(parent)
{
isFault = false;
UdpHandler *udp = UdpHandler::getInstance();
connect(udp, SIGNAL(timeout()), SLOT(setFault()));
connect(udp, SIGNAL(recovered()), SLOT(setOK()));
}
void CommIcon::setFault()
{
isFault = true;
update();
}
void CommIcon::setOK()
{
isFault = false;
update();
}
void CommIcon::paintEvent(QPaintEvent *event)
{
if (isFault)
return;
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
painter.setBrush(Qt::blue);
painter.drawEllipse(rect());
}