PyObject* ShapeInputHandler::getValue() const
{
// Otherwise, OR together all of the input shapes
// (or return NULL if any of them are invalid)
PyObject* out = NULL;
bool valid = true;
PyObject* or_function = PyUnicode_FromString("__or__");
for (auto i : in)
{
// We check to see if the pointer has been deleted or has been reduced
// to a QObject (because destroyed is emitted before complete destruction,
// see note above in SingleInputHandler::hasInput)
if (i.isNull() || dynamic_cast<Datum*>(i->parent()) == NULL)
{
continue;
}
// Link source and target
Q_ASSERT(dynamic_cast<Datum*>(i->parent()));
Datum* source = static_cast<Datum*>(i->parent());
Q_ASSERT(dynamic_cast<Datum*>(parent()));
Datum* target = static_cast<Datum*>(parent());
valid &= target->connectUpstream(source) && source->getValid();
if (!valid)
continue;
if (out == NULL)
{
out = source->getValue();
Py_INCREF(out);
}
else
{
PyObject* next = PyObject_CallMethodObjArgs(
out, or_function, source->getValue(), NULL);
Py_DECREF(out);
out = next;
}
}
Py_DECREF(or_function);
if (valid)
{
return out;
}
else
{
Py_XDECREF(out);
return NULL;
}
}
PyObject* SingleInputHandler::getValue() const
{
Q_ASSERT(!in.isNull());
Q_ASSERT(dynamic_cast<Datum*>(in->parent()));
Datum* source = static_cast<Datum*>(in->parent());
Q_ASSERT(dynamic_cast<Datum*>(parent()));
Datum* target = static_cast<Datum*>(parent());
if (target->connectUpstream(source) && source->getValid())
{
PyObject* v = source->getValue();
Py_INCREF(v);
return v;
}
else
{
return NULL;
}
}
