void UmlForkActivityNode::solve_output_flows() {
// input and outputs flows must be control/data
UmlFlow * f;
ControlOrData k;
const Q3PtrVector<UmlItem> ch = children();
unsigned n = ch.size();
if (!_incoming_flows.isEmpty()) {
f = _incoming_flows.getFirst();
k = f->control_or_data();
}
else {
f = 0;
k = Unset;
}
if (k == Unset) {
// look at output flows
for (unsigned i = 0; i != n; i += 1) {
UmlFlow * f = dynamic_cast<UmlFlow *>(ch[i]);
if ((f != 0) && ((k = f->control_or_data()) != Unset))
break;
}
if (f != 0) {
// f is unset
if (k != Unset) {
if (f->control_or_data() == Unset)
// propagate on input
f->set_control_or_data(k);
}
else {
// solve input flow
((UmlActivityNode *) f->parent())->solve_output_flows();
k = f->control_or_data();
if (k == Unset)
// not possible to know, force control
k = IsControl;
// propagate on input
f->set_control_or_data(k);
}
}
}
// propagate on output
for (unsigned i = 0; i != n; i += 1) {
UmlFlow * f = dynamic_cast<UmlFlow *>(ch[i]);
if ((f != 0) && (f->control_or_data() == Unset))
f->set_control_or_data(k);
}
}
void UmlInitialActivityNode::solve_output_flows() {
const Q3PtrVector<UmlItem> ch = children();
unsigned n = ch.size();
for (unsigned i = 0; i != n; i += 1) {
UmlFlow * f = dynamic_cast<UmlFlow *>(ch[i]);
if ((f != 0) && (f->control_or_data() == Unset))
f->set_control_or_data(IsControl);
}
}
void UmlActivityAction::solve_output_flows() {
const Q3PtrVector<UmlItem> ch = children();
unsigned n = ch.size();
for (unsigned i = 0; i != n; i += 1) {
UmlFlow * f = dynamic_cast<UmlFlow *>(ch[i]);
if ((f != 0) && (f->control_or_data() == Unset)) {
UmlActivityObject * o = dynamic_cast<UmlActivityObject *>(f->target());
f->set_control_or_data(((o == 0) || o->isControlType()) ? IsControl : IsData);
}
}
}
void UmlActivityObject::solve_output_flows() {
ControlOrData v = (isControlType()) ? IsControl : IsData;
const QVector<UmlItem> ch = children();
unsigned n = ch.size();
for (unsigned i = 0; i != n; i += 1) {
UmlFlow * f = dynamic_cast<UmlFlow *>(ch[i]);
if ((f != 0) && (f->control_or_data() == Unset))
f->set_control_or_data(v);
}
QListIterator<UmlFlow> it(_incoming_flows);
while (it.current() != 0) {
if (it.current()->control_or_data() == Unset)
it.current()->set_control_or_data(v);
++it;
}
}
void UmlDecisionActivityNode::solve_output_flows() {
// input and outputs flows must be control/data
// except a possible decision input being data
ControlOrData k = Unset;
// look at output flows
const Q3PtrVector<UmlItem> ch = children();
unsigned n = ch.size();
unsigned i;
for (i = 0; i != n; i += 1) {
UmlFlow * f = dynamic_cast<UmlFlow *>(ch[i]);
if ((f != 0) && ((k = f->control_or_data()) != Unset))
break;
}
if (k == Unset) {
bool already = FALSE;
for (;;) {
// look at input flows
int ndata = 0;
bool hascontrol = FALSE;
bool hasunset = FALSE;
Q3PtrListIterator<UmlFlow> it(_incoming_flows);
while (it.current() != 0) {
k = it.current()->control_or_data();
if (k == IsControl) {
hascontrol = TRUE;
break;
}
else if (k == IsData) {
if (++ndata == 2)
// more than a single decision input
break;
}
else
hasunset = TRUE;
++it;
}
if (hascontrol) {
// already has k = IsControl;
break;
}
else if ((ndata == 2) || ((ndata == 1) && !hasunset)) {
k = IsData;
break;
}
else if (already || !hasunset) {
// not possible to know, force control
k = IsControl;
break;
}
already = TRUE;
// solve input flows
it.toFirst();
while (it.current() != 0) {
((UmlActivityNode *) it.current()->parent())->solve_output_flows();
++it;
}
}
}
// propagate
for (i = 0; i != n; i += 1) {
UmlFlow * f = dynamic_cast<UmlFlow *>(ch[i]);
if ((f != 0) && (f->control_or_data() == Unset))
f->set_control_or_data(k);
}
Q3PtrListIterator<UmlFlow> it(_incoming_flows);
while (it.current() != 0) {
if (it.current()->control_or_data() == Unset)
it.current()->set_control_or_data(k);
++it;
}
}
