// Convert a QVariantHash to a dict of Python objects. static PyObject *convert_hash(const Chimera *ct, const QVariantHash &value) { PyObject *dict = PyDict_New(); if (!dict) return 0; for (QVariantHash::const_iterator it = value.constBegin(); it != value.constEnd(); ++it) { if (add_variant_to_dict(ct, dict, it.key(), it.value()) < 0) { Py_DECREF(dict); return 0; } } return dict; }
// Convert a C++ object at an arbitary address to Python. PyObject *Chimera::toPyObject(void *cpp) const { if (_metatype == PyQt_PyObject::metatype) { if (_type) { // SIP knows the type (therefore it isn't really wrapped in a // PyQt_PyObject) but it's not registered with Qt. if (_name.endsWith('*')) cpp = *reinterpret_cast<void **>(cpp); return sipConvertFromType(cpp, _type, 0); } else { // Otherwise unwrap the Python object. PyQt_PyObject *pyobj_wrapper = reinterpret_cast<PyQt_PyObject *>(cpp); if (!pyobj_wrapper->pyobject) { PyErr_SetString(PyExc_TypeError, "unable to convert a QVariant back to a Python object"); return 0; } Py_INCREF(pyobj_wrapper->pyobject); return pyobj_wrapper->pyobject; } } PyObject *py = 0; switch (_metatype) { case QMetaType::Bool: py = PyBool_FromLong(*reinterpret_cast<bool *>(cpp)); break; case QMetaType::Int: if (isFlag()) { py = sipConvertFromType(cpp, _type, 0); } else if (isEnum()) { py = sipConvertFromEnum(*reinterpret_cast<int *>(cpp), _type); } else { py = SIPLong_FromLong(*reinterpret_cast<int *>(cpp)); } break; case QMetaType::UInt: { long ui = *reinterpret_cast<unsigned int *>(cpp); if (ui < 0) py = PyLong_FromUnsignedLong((unsigned long)ui); else py = SIPLong_FromLong(ui); break; } case QMetaType::Double: py = PyFloat_FromDouble(*reinterpret_cast<double *>(cpp)); break; case QMetaType::VoidStar: py = sipConvertFromVoidPtr(*reinterpret_cast<void **>(cpp)); break; case QMetaType::Long: py = SIPLong_FromLong(*reinterpret_cast<long *>(cpp)); break; case QMetaType::LongLong: py = PyLong_FromLongLong(*reinterpret_cast<qlonglong *>(cpp)); break; case QMetaType::Short: py = SIPLong_FromLong(*reinterpret_cast<short *>(cpp)); break; case QMetaType::Char: case QMetaType::UChar: py = SIPBytes_FromStringAndSize(reinterpret_cast<char *>(cpp), 1); break; case QMetaType::ULong: py = PyLong_FromUnsignedLong(*reinterpret_cast<unsigned long *>(cpp)); break; case QMetaType::ULongLong: py = PyLong_FromUnsignedLongLong(*reinterpret_cast<qulonglong *>(cpp)); break; case QMetaType::UShort: py = SIPLong_FromLong(*reinterpret_cast<unsigned short *>(cpp)); break; case QMetaType::Float: py = PyFloat_FromDouble(*reinterpret_cast<float *>(cpp)); break; case QMetaType::QObjectStar: py = sipConvertFromType(*reinterpret_cast<void **>(cpp), sipType_QObject, 0); break; case QMetaType::QWidgetStar: if (sipType_QWidget) py = sipConvertFromType(*reinterpret_cast<void **>(cpp), sipType_QWidget, 0); break; case QMetaType::QVariantList: { QVariantList *ql = reinterpret_cast<QVariantList *>(cpp); py = PyList_New(ql->size()); if (py) { for (int i = 0; i < ql->size(); ++i) { PyObject *val_obj = toAnyPyObject(ql->at(i)); if (!val_obj) { Py_DECREF(py); py = 0; break; } PyList_SET_ITEM(py, i, val_obj); } } break; } case QMetaType::QVariantMap: { py = PyDict_New(); if (py) { QVariantMap *qm = reinterpret_cast<QVariantMap *>(cpp); for (QVariantMap::const_iterator it = qm->constBegin(); it != qm->constEnd(); ++it) if (!add_variant_to_dict(py, it.key(), it.value())) { Py_DECREF(py); py = 0; break; } } break; } #if QT_VERSION >= 0x040500 case QMetaType::QVariantHash: { py = PyDict_New(); if (py) { QVariantHash *qh = reinterpret_cast<QVariantHash *>(cpp); for (QVariantHash::const_iterator it = qh->constBegin(); it != qh->constEnd(); ++it) if (!add_variant_to_dict(py, it.key(), it.value())) { Py_DECREF(py); py = 0; break; } } break; } #endif case -1: { char *s = *reinterpret_cast<char **>(cpp); if (s) { py = SIPBytes_FromString(s); } else { Py_INCREF(Py_None); py = Py_None; } break; } default: if (_type) { if (_name.endsWith('*')) { py = sipConvertFromType(*reinterpret_cast<void **>(cpp), _type, 0); } else { // Make a copy as it is a value type. void *copy = QMetaType::construct(_metatype, cpp); py = sipConvertFromNewType(copy, _type, 0); if (!py) QMetaType::destroy(_metatype, copy); } } } if (!py) PyErr_Format(PyExc_TypeError, "unable to convert a C++ '%s' instance to a Python object", _name.constData()); return py; }