#include "commicon.h" #include #include #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()); }