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namespace Shiboken {
template<>
struct Converter<QVariant>
{
static bool checkType(PyObject* pyObj)
{
return false; // lets avoid the chaos
}
// all types are convertible to QVariant
static bool isConvertible(PyObject* pyObj)
{
return true;
}
static const char* resolveMetaType(PyTypeObject* type, int* typeId)
{
if (PyObject_TypeCheck(type, &SbkObjectType_Type)) {
SbkObjectType* sbkType = reinterpret_cast<SbkObjectType*>(type);
const char* typeName = Shiboken::ObjectType::getOriginalName(sbkType);
if (!typeName)
return 0;
bool valueType = '*' != typeName[qstrlen(typeName) - 1];
// Do not convert user type of value
if (valueType && Shiboken::ObjectType::isUserType(type))
return 0;
int obTypeId = QMetaType::type(typeName);
if (obTypeId) {
*typeId = obTypeId;
return typeName;
}
// Do not resolve types to value type
if (valueType)
return 0;
// find in base types
if (type->tp_base) {
return resolveMetaType(type->tp_base, typeId);
} else if (type->tp_bases) {
int size = PyTuple_GET_SIZE(type->tp_bases);
for(int i=0; i < size; i++){
const char* derivedName = resolveMetaType(reinterpret_cast<PyTypeObject*>(PyTuple_GET_ITEM(type->tp_bases, i)), typeId);
if (derivedName)
return derivedName;
}
}
}
*typeId = 0;
return 0;
}
static QVariant toCpp(PyObject* pyObj)
{
using namespace Shiboken;
// Primitive types
if (Converter<bool>::checkType(pyObj)) {
// QVariant(bool)
return QVariant(Converter<bool>::toCpp(pyObj));
} else if (pyObj == Py_None) {
// QVariant()
return QVariant();
} else if (Converter<QString>::checkType(pyObj)) {
// QVariant(const char*)
return QVariant(Converter<QString>::toCpp(pyObj));
} else if (Converter<QByteArray>::checkType(pyObj)) {
// QVariant(QByteArray)
return QVariant(Converter<QByteArray>::toCpp(pyObj));
} else if (PyFloat_CheckExact(pyObj)) {
// QVariant(double)
return QVariant(Converter<double>::toCpp(pyObj));
} else if (PyInt_Check(pyObj)) {
// QVariant(int)
return QVariant(Converter<int>::toCpp(pyObj));
} else if (PyLong_CheckExact(pyObj)) {
// QVariant(qlonglong)
return QVariant(Converter<qlonglong>::toCpp(pyObj));
} else if (Shiboken::isShibokenEnum(pyObj)) {
// QVariant(enum)
return QVariant(Converter<int>::toCpp(pyObj));
} else if (PyNumber_Check(pyObj)) {
Shiboken::AutoDecRef pyValue(PyNumber_Long(pyObj));
return QVariant((int)PyLong_AsLong(pyValue.object()));
} else if (Shiboken::Object::checkType(pyObj)) {
// a class supported by QVariant?
int typeCode;
const char* typeName = resolveMetaType(pyObj->ob_type, &typeCode);
if (typeCode && typeName) {
Shiboken::TypeResolver* tr = Shiboken::TypeResolver::get(typeName);
QVariant var(typeCode, (void*)0);
void* args[] = { var.data() };
tr->toCpp(pyObj, args);
return var;
}
}
// Sequence and dictionary
if (PyDict_Check(pyObj)) {
QVariant ret = convertToVariantMap(pyObj);
if (ret.isValid())
return ret;
} else if (PySequence_Check(pyObj)) {
return convertToVariantList(pyObj);
}
// Is a shiboken type not known by Qt
return QVariant::fromValue<PySide::PyObjectWrapper>(pyObj);
}
static PyObject* toPython(void* cppObj)
{
return toPython(*reinterpret_cast<QVariant*>(cppObj));
}
static PyObject* toPython(const QVariant& cppObj)
{
if (cppObj.isValid()) {
if (qstrcmp(cppObj.typeName(), "QVariantList") == 0)
return Converter<QList<QVariant> >::toPython(cppObj.value<QVariantList>());
if (qstrcmp(cppObj.typeName(), "QStringList") == 0)
return Converter<QList<QString> >::toPython(cppObj.value<QStringList>());
if (qstrcmp(cppObj.typeName(), "QVariantMap") == 0)
return Converter<QMap<QString, QVariant> >::toPython(cppObj.value<QVariantMap>());
Shiboken::TypeResolver* tr = Shiboken::TypeResolver::get(cppObj.typeName());
if (tr)
return tr->toPython(const_cast<void*>(cppObj.data()));
}
Py_RETURN_NONE;
}
static QVariant convertToValueList(PyObject* list)
{
if (PySequence_Size(list) < 1)
return QVariant();
Shiboken::AutoDecRef element(PySequence_GetItem(list, 0));
int typeId;
const char* typeName = resolveMetaType(element.cast<PyTypeObject*>(), &typeId);
if (typeName) {
QByteArray listTypeName("QList<");
listTypeName += typeName;
listTypeName += '>';
typeId = QMetaType::type(listTypeName);
if (typeId > 0) {
Shiboken::TypeResolver* tr = Shiboken::TypeResolver::get(listTypeName);
if (!tr) {
qWarning() << "TypeResolver for :" << listTypeName << "not registered.";
} else {
QVariant var(typeId, (void*)0);
void* args[] = { var.data(), 0 };
tr->toCpp(list, args);
return var;
}
}
}
return QVariant();
}
static QVariant convertToVariantMap(PyObject* map)
{
PyObject *key, *value;
Py_ssize_t pos = 0;
AutoDecRef keys(PyDict_Keys(map));
bool keysIsString = isStringList(keys);
if (keysIsString) {
QMap<QString, QVariant> ret;
while (PyDict_Next(map, &pos, &key, &value))
ret.insert(Converter<QString>::toCpp(key), toCpp(value));
return QVariant(ret);
} else {
return QVariant();
}
}
static bool isStringList(PyObject *list)
{
bool allString = true;
AutoDecRef fast(PySequence_Fast(list, "Failed to convert QVariantList"));
Py_ssize_t size = PySequence_Fast_GET_SIZE(fast.object());
for(int i=0; i < size; i++) {
PyObject* item = PySequence_Fast_GET_ITEM(fast.object(), i);
if (!Converter<QString>::checkType(item)) {
allString = false;
break;
}
}
return allString;
}
static QVariant convertToVariantList(PyObject* list)
{
bool allString = isStringList(list);
if (allString) {
QStringList lst = Converter<QList<QString> >::toCpp(list);
return QVariant(lst);
} else {
QVariant valueList = convertToValueList(list);
if (valueList.isValid())
return valueList;
QList<QVariant> lst;
AutoDecRef fast(PySequence_Fast(list, "Failed to convert QVariantList"));
Py_ssize_t size = PySequence_Fast_GET_SIZE(fast.object());
for(int i=0; i < size; i++) {
PyObject* item = PySequence_Fast_GET_ITEM(fast.object(), i);
lst.append(toCpp(item));
}
return QVariant(lst);
}
Q_ASSERT(false);
}
};
}
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