void GraphConnection::setupEndpoint(const GraphConnectionEndpoint &ep)
{
assert(_impl);
if (ep.getKey().isInput)
{
_impl->inputEp = ep;
}
else
{
_impl->outputEp = ep;
}
connect(ep.getObj(), SIGNAL(destroyed(QObject *)), this, SLOT(handleEndPointDestroyed(QObject *)));
}
bool GraphDraw::tryToMakeConnection(const GraphConnectionEndpoint &thisEp)
{
QPointer<GraphConnection> conn;
const auto &lastEp = _lastClickSelectEp;
//valid keys, attempt to make a connection when the endpoints differ in direction
if (thisEp.isValid() and lastEp.isValid() and //both are valid
lastEp.getKey().isInput() != thisEp.getKey().isInput()) //directions differ
{
try
{
conn = this->getGraphEditor()->makeConnection(thisEp, _lastClickSelectEp);
this->getGraphEditor()->handleStateChange(GraphState("connect-arrow", tr("Connect %1[%2] to %3[%4]").arg(
conn->getOutputEndpoint().getObj()->getId(),
conn->getOutputEndpoint().getKey().id,
conn->getInputEndpoint().getObj()->getId(),
conn->getInputEndpoint().getKey().id
)));
}
catch (const Pothos::Exception &ex)
{
static auto &logger = Poco::Logger::get("PothosFlow.GraphDraw");
logger.warning("Cannot connect port %s[%s] to port %s[%s]: %s",
_lastClickSelectEp.getObj()->getId().toStdString(),
_lastClickSelectEp.getKey().id.toStdString(),
thisEp.getObj()->getId().toStdString(),
thisEp.getKey().id.toStdString(),
ex.message());
}
//cleanup regardless of failure
_lastClickSelectEp = GraphConnectionEndpoint();
this->deselectAllObjs();
}
//if this is a signal or slot connection
//open the properties panel for configuration
if (conn and conn->isSignalOrSlot())
{
emit this->modifyProperties(conn);
}
return bool(conn);
}
bool operator==(const GraphConnectionEndpoint &ep0, const GraphConnectionEndpoint &ep1)
{
return ep0.getObj() == ep1.getObj() and ep0.getKey() == ep1.getKey();
}
