bool QProjector::checkDependencies()
{
if(!hasDependencies()) {
return true;
}
return listenersWaitingFor==0
&& listenersDenyingPermission==0;
}
void __uservice::__check_dependencies()
{
if (hasDependencies())
{
warning(this, W__HAS_DEPENDS);
for(uint i = 0; i < _depends.size(); ++i)
console() << MSG__TAB4 << _depends[i]->getName() << "\n";
}
}
void QProjector::requestAdvance()
{
emit debug(tr("Someone requests that the projector advance."));
if(hasDependencies()) {
emit debug(QString("Projector announces intention to advance."));
listenersWaitingFor = countDependencies();
listenersDenyingPermission = 0;
emit aboutToAdvance();
} else {
emit debug(QString("Projector directly processes pattern queue, as it has no listeners."));
processQueue();
}
}
