/*
*
* Copyright (C) 2006 MeVis Research GmbH All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Contact information: MeVis Research GmbH, Universitaetsallee 29,
* 28359 Bremen, Germany or:
*
* http://www.mevis.de
*
*/
//----------------------------------------------------------------------------------
/*!
// \file PythonQtConversion.cpp
// \author Florian Link
// \author Last changed by $Author: florian $
// \date 2006-05
*/
//----------------------------------------------------------------------------------
#include "PythonQtConversion.h"
#include "PythonQtVariants.h"
#include "PythonQtVariantWrapper.h"
#include <QDateTime>
#include <QTime>
#include <QDate>
PythonQtValueStorage<qint64, 128> PythonQtConv::global_valueStorage;
PythonQtValueStorage<void*, 128> PythonQtConv::global_ptrStorage;
PythonQtValueStorage<QVariant, 32> PythonQtConv::global_variantStorage;
PyObject* PythonQtConv::GetPyBool(bool val)
{
PyObject* r = val?Py_True:Py_False;
Py_INCREF(r);
return r;
}
PyObject* PythonQtConv::ConvertQtValueToPython(const PythonQtMethodInfo::ParameterInfo& info, void* data) {
if (info.typeId == QMetaType::Void) {
Py_INCREF(Py_None);
return Py_None;
} else {
if (info.isPointer && (info.typeId == PythonQtMethodInfo::Unknown)) {
// convert argList[0] to python
PyObject* pyObj = PythonQt::priv()->wrapPtr(*((void**)data), info.name);
if (pyObj) {
return pyObj;
} else {
std::cerr << "unknown pointer type " << info.name.data() << ", in " << __FILE__ << ":" << __LINE__ << std::endl;
Py_INCREF(Py_None);
return Py_None;
}
} else if (info.isPointer && (info.typeId == QMetaType::Char)) {
// a char ptr will probably be a null terminated string, so we support that:
return PyString_FromString(*((char**)data));
} else {
// handle values that are not pointers
return ConvertQtValueToPythonInternal(info.typeId, data);
}
}
}
PyObject* PythonQtConv::ConvertQtValueToPythonInternal(int type, void* data) {
switch (type) {
case QMetaType::Void:
Py_INCREF(Py_None);
return Py_None;
case QMetaType::Char:
return PyInt_FromLong(*((char*)data));
case QMetaType::UChar:
return PyInt_FromLong(*((unsigned char*)data));
case QMetaType::Short:
return PyInt_FromLong(*((short*)data));
case QMetaType::UShort:
return PyInt_FromLong(*((unsigned short*)data));
case QMetaType::Long:
return PyInt_FromLong(*((long*)data));
case QMetaType::ULong:
// does not fit into simple int of python
return PyLong_FromUnsignedLong(*((unsigned long*)data));
case QMetaType::Bool:
return PythonQtConv::GetPyBool(*((bool*)data));
case QMetaType::Int:
return PyInt_FromLong(*((int*)data));
case QMetaType::UInt:
return PyInt_FromLong(*((unsigned int*)data));
case QMetaType::QChar:
return PyInt_FromLong(*((short*)data));
case QMetaType::Float:
return PyFloat_FromDouble(*((float*)data));
case QMetaType::Double:
return PyFloat_FromDouble(*((double*)data));
case QMetaType::LongLong:
return PyLong_FromLongLong(*((qint64*)data));
case QMetaType::ULongLong:
return PyLong_FromUnsignedLongLong(*((quint64*)data));
case QMetaType::QByteArray: {
QByteArray* v = (QByteArray*) data;
return PyString_FromStringAndSize(*v, v->size());
}
case QMetaType::QVariantMap:
return PythonQtConv::QVariantMapToPyObject(*((QVariantMap*)data));
case QMetaType::QVariantList:
return PythonQtConv::QVariantListToPyObject(*((QVariantList*)data));
case QMetaType::QString:
return PythonQtConv::QStringToPyObject(*((QString*)data));
case QMetaType::QStringList:
return PythonQtConv::QStringListToPyObject(*((QStringList*)data));
case PythonQtMethodInfo::Variant:
return PythonQtConv::QVariantToPyObject(*((QVariant*)data));
case QMetaType::QObjectStar:
case QMetaType::QWidgetStar:
return PythonQt::priv()->wrapQObject(*((QObject**)data));
// the following cases could be handled by the default case, but it is faster to do it with
// direct casts:
case QMetaType::QDate:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QDate*)data)));
case QMetaType::QTime:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QTime*)data)));
case QMetaType::QDateTime:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QDateTime*)data)));
case QMetaType::QRect:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QRect*)data)));
case QMetaType::QSize:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QSize*)data)));
case QMetaType::QPoint:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QPoint*)data)));
case QMetaType::QColor:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QColor*)data)));
case QMetaType::QPixmap:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QPixmap*)data)));
case QMetaType::QUrl:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QUrl*)data)));
case QMetaType::QRectF:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QRectF*)data)));
case QMetaType::QSizeF:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QSizeF*)data)));
case QMetaType::QLine:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QLine*)data)));
case QMetaType::QLineF:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QLineF*)data)));
case QMetaType::QPointF:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QPointF*)data)));
case QMetaType::QRegExp:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QRegExp*)data)));
case QMetaType::QBitArray:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QBitArray*)data)));
case QMetaType::QLocale:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QLocale*)data)));
case QMetaType::QFont:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QFont*)data)));
case QMetaType::QBrush:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QBrush*)data)));
case QMetaType::QPalette:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QPalette*)data)));
case QMetaType::QIcon:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(qVariantFromValue(*((QIcon*)data)));
case QMetaType::QImage:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QImage*)data)));
case QMetaType::QPolygon:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QPolygon*)data)));
case QMetaType::QRegion:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QRegion*)data)));
case QMetaType::QBitmap:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(qVariantFromValue(*((QBitmap*)data)));
case QMetaType::QCursor:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QCursor*)data)));
case QMetaType::QSizePolicy:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(QVariant(*((QSizePolicy*)data)));
case QMetaType::QKeySequence:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(qVariantFromValue(*((QKeySequence*)data)));
case QMetaType::QPen:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(qVariantFromValue(*((QPen*)data)));
case QMetaType::QTextLength:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(qVariantFromValue(*((QTextLength*)data)));
case QMetaType::QTextFormat:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(qVariantFromValue(*((QTextFormat*)data)));
case QMetaType::QMatrix:
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(qVariantFromValue(*((QMatrix*)data)));
default:
if (PythonQt::priv()->isPythonQtObjectPtrMetaId(type)) {
PyObject* o = ((PythonQtObjectPtr*)data)->object();
Py_INCREF(o);
return o;
} else {
QVariant v(type, data);
if (v.isValid()) {
return (PyObject*)PythonQt::priv()->createNewPythonQtVariantWrapper(v);
} else {
std::cerr << "Unknown type that can not be converted to Python: " << type << ", in " << __FILE__ << ":" << __LINE__ << std::endl;
}
}
}
Py_INCREF(Py_None);
return Py_None;
}
void* PythonQtConv::CreateQtReturnValue(const PythonQtMethodInfo::ParameterInfo& info) {
void* ptr = NULL;
if (info.isPointer) {
PythonQtValueStorage_ADD_VALUE(global_ptrStorage, void*, NULL, ptr);
} else {
switch (info.typeId) {
case QMetaType::Char:
case QMetaType::UChar:
case QMetaType::Short:
case QMetaType::UShort:
case QMetaType::Long:
case QMetaType::ULong:
case QMetaType::Bool:
case QMetaType::Int:
case QMetaType::UInt:
case QMetaType::QChar:
case QMetaType::Float:
case QMetaType::Double:
PythonQtValueStorage_ADD_VALUE(global_valueStorage, long, 0, ptr);
break;
case PythonQtMethodInfo::Variant:
PythonQtValueStorage_ADD_VALUE(global_variantStorage, QVariant, 0, ptr);
// return the ptr to the variant
break;
default:
// everything else is stored in a QVariant...
PythonQtValueStorage_ADD_VALUE(global_variantStorage, QVariant, QVariant::Type(info.typeId), ptr);
// return the constData pointer that will be filled with the result value later on
ptr = (void*)((QVariant*)ptr)->constData();
}
}
return ptr;
}
void* PythonQtConv::ConvertPythonToQt(const PythonQtMethodInfo::ParameterInfo& info, PyObject* obj, bool strict, const QMetaObject* meta)
{
bool ok;
void* ptr = NULL;
if (info.isPointer) {
if (obj->ob_type == &PythonQtWrapper_Type) {
PythonQtWrapper* wrap = (PythonQtWrapper*)obj;
// c++ wrapper, check if the class names of the c++ objects match
if (wrap->_info->isCPPWrapper()) {
//TODO: we could support inheritance on cpp wrappers as well
if (wrap->_info->wrappedCPPClassName() == info.name) {
PythonQtValueStorage_ADD_VALUE(global_ptrStorage, void*, wrap->_wrappedPtr, ptr);
} else {
// not matching
}
} else {
if (wrap->_info->inherits(info.name)) {
PythonQtValueStorage_ADD_VALUE(global_ptrStorage, void*, wrap->_obj, ptr);
} else {
// not matching
}
}
} else
if (info.typeId == QMetaType::Char || info.typeId == QMetaType::UChar) {
QString str = PyObjGetString(obj, strict, ok);
if (ok) {
void* ptr2 = NULL;
PythonQtValueStorage_ADD_VALUE(global_variantStorage, QVariant, QVariant(str.toUtf8()), ptr2);
PythonQtValueStorage_ADD_VALUE(global_ptrStorage, void*, (((QByteArray*)((QVariant*)ptr2)->constData())->data()), ptr);
}
} else if (info.name == "PyObject") {
// handle low level PyObject directly
PythonQtValueStorage_ADD_VALUE(global_ptrStorage, void*, obj, ptr);
} else if (obj == Py_None) {
// None is treated as a NULL ptr
PythonQtValueStorage_ADD_VALUE(global_ptrStorage, void*, NULL, ptr);
} else {
// if we are not strict, we try if we are passed a 0 integer
if (!strict) {
bool ok;
int value = PyObjGetInt(obj, true, ok);
if (ok && value==0) {
PythonQtValueStorage_ADD_VALUE(global_ptrStorage, void*, NULL, ptr);
}
}
// EXTRA: we could support pointers to other simple types, but this would not make sense in most situations
}
} else {
// not a pointer
switch (info.typeId) {
case QMetaType::Char:
{
int val = PyObjGetInt(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_valueStorage, char, val, ptr);
}
}
break;
case QMetaType::UChar:
{
int val = PyObjGetInt(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_valueStorage, unsigned char, val, ptr);
}
}
break;
case QMetaType::Short:
{
int val = PyObjGetInt(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_valueStorage, short, val, ptr);
}
}
break;
case QMetaType::UShort:
{
int val = PyObjGetInt(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_valueStorage, unsigned short, val, ptr);
}
}
break;
case QMetaType::Long:
{
long val = (long)PyObjGetLongLong(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_valueStorage, long, val, ptr);
}
}
break;
case QMetaType::ULong:
{
unsigned long val = (unsigned long)PyObjGetLongLong(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_valueStorage, unsigned long, val, ptr);
}
}
break;
case QMetaType::Bool:
{
bool val = PyObjGetBool(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_valueStorage, bool, val, ptr);
}
}
break;
case QMetaType::Int:
{
int val = PyObjGetInt(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_valueStorage, int, val, ptr);
}
}
break;
case QMetaType::UInt:
{
unsigned int val = (unsigned int)PyObjGetLongLong(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_valueStorage, unsigned int, val, ptr);
}
}
break;
case QMetaType::QChar:
{
int val = PyObjGetInt(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_valueStorage, short, val, ptr);
}
}
break;
case QMetaType::Float:
{
float val = (float)PyObjGetDouble(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_valueStorage, float, val, ptr);
}
}
break;
case QMetaType::Double:
{
double val = (double)PyObjGetDouble(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_valueStorage, double, val, ptr);
}
}
break;
case QMetaType::LongLong:
{
qint64 val = PyObjGetLongLong(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_valueStorage, qint64, val, ptr);
}
}
break;
case QMetaType::ULongLong:
{
quint64 val = PyObjGetULongLong(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_valueStorage, quint64, val, ptr);
}
}
break;
case QMetaType::QByteArray:
{
QByteArray bytes = PyObjGetBytes(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_variantStorage, QVariant, QVariant(bytes), ptr);
ptr = (void*)((QVariant*)ptr)->constData();
}
}
break;
case QMetaType::QString:
{
QString str = PyObjGetString(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_variantStorage, QVariant, QVariant(str), ptr);
ptr = (void*)((QVariant*)ptr)->constData();
}
}
break;
case QMetaType::QStringList:
{
QStringList l = PyObjToStringList(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_variantStorage, QVariant, QVariant(l), ptr);
ptr = (void*)((QVariant*)ptr)->constData();
}
}
break;
case PythonQtMethodInfo::Variant:
{
QVariant v = PyObjToQVariant(obj);
if (v.isValid()) {
PythonQtValueStorage_ADD_VALUE(global_variantStorage, QVariant, v, ptr);
}
}
break;
case PythonQtMethodInfo::Unknown:
{
if (PythonQt::priv()->isEnumType(meta, info.name)) {
unsigned int val = (unsigned int)PyObjGetLongLong(obj, strict, ok);
if (ok) {
PythonQtValueStorage_ADD_VALUE(global_valueStorage, unsigned int, val, ptr);
}
}
}
break;
default:
{
// for all other types, we use the same qvariant conversion and pass out the constData of the variant:
QVariant v = PyObjToQVariant(obj, info.typeId);
if (v.isValid()) {
PythonQtValueStorage_ADD_VALUE(global_variantStorage, QVariant, v, ptr);
ptr = (void*)((QVariant*)ptr)->constData();
}
}
}
}
return ptr;
}
QStringList PythonQtConv::PyObjToStringList(PyObject* val, bool strict, bool& ok) {
QStringList v;
ok = false;
// if we are strict, we do not want to convert a string to a stringlist
// (strings in python are detected to be sequences)
if (strict &&
(val->ob_type == &PyString_Type ||
PyUnicode_Check(val))) {
ok = false;
return v;
}
if (PySequence_Check(val)) {
int count = PySequence_Size(val);
for (int i = 0;i<count;i++) {
PyObject* value = PySequence_GetItem(val,i);
v.append(PyObjGetString(value,false,ok));
}
ok = true;
}
return v;
}
QString PythonQtConv::PyObjGetRepresentation(PyObject* val)
{
QString r;
PyObject* str = PyObject_Repr(val);
if (str) {
r = QString(PyString_AS_STRING(str));
Py_DECREF(str);
}
return r;
}
QString PythonQtConv::PyObjGetString(PyObject* val, bool strict, bool& ok) {
QString r;
ok = true;
if (val->ob_type == &PyString_Type) {
r = QString(PyString_AS_STRING(val));
} else if (PyUnicode_Check(val)) {
#ifdef WIN32
r = QString::fromUtf16(PyUnicode_AS_UNICODE(val));
#else
PyObject *ptmp = PyUnicode_AsUTF8String(val);
if(ptmp) {
r = QString::fromUtf8(PyString_AS_STRING(ptmp));
Py_DECREF(ptmp);
}
#endif
} else if (!strict) {
// EXTRA: could also use _Unicode, but why should we?
PyObject* str = PyObject_Str(val);
if (str) {
r = QString(PyString_AS_STRING(str));
Py_DECREF(str);
} else {
ok = false;
}
} else {
ok = false;
}
return r;
}
QByteArray PythonQtConv::PyObjGetBytes(PyObject* val, bool strict, bool& ok) {
QByteArray r;
ok = true;
if (val->ob_type == &PyString_Type) {
long size = PyString_GET_SIZE(val);
r = QByteArray(PyString_AS_STRING(val), size);
} else {
ok = false;
}
return r;
}
bool PythonQtConv::PyObjGetBool(PyObject* val, bool strict, bool &ok) {
bool d = false;
ok = false;
if (val == Py_False) {
d = false;
ok = true;
} else if (val == Py_True) {
d = true;
ok = true;
} else if (!strict) {
d = PyObjGetInt(val, false, ok)!=0;
ok = true;
}
return d;
}
int PythonQtConv::PyObjGetInt(PyObject* val, bool strict, bool &ok) {
int d = 0;
ok = true;
if (val->ob_type == &PyInt_Type) {
d = PyInt_AS_LONG(val);
} else if (!strict) {
if (val->ob_type == &PyFloat_Type) {
d = floor(PyFloat_AS_DOUBLE(val));
} else if (val->ob_type == &PyLong_Type) {
// handle error on overflow!
d = PyLong_AsLong(val);
} else if (val == Py_False) {
d = 0;
} else if (val == Py_True) {
d = 1;
} else {
ok = false;
}
} else {
ok = false;
}
return d;
}
qint64 PythonQtConv::PyObjGetLongLong(PyObject* val, bool strict, bool &ok) {
qint64 d = 0;
ok = true;
if (val->ob_type == &PyInt_Type) {
d = PyInt_AS_LONG(val);
} else if (val->ob_type == &PyLong_Type) {
d = PyLong_AsLongLong(val);
} else if (!strict) {
if (val->ob_type == &PyFloat_Type) {
d = floor(PyFloat_AS_DOUBLE(val));
} else if (val == Py_False) {
d = 0;
} else if (val == Py_True) {
d = 1;
} else {
ok = false;
}
} else {
ok = false;
}
return d;
}
quint64 PythonQtConv::PyObjGetULongLong(PyObject* val, bool strict, bool &ok) {
quint64 d = 0;
ok = true;
if (val->ob_type == &PyInt_Type) {
d = PyInt_AS_LONG(val);
} else if (val->ob_type == &PyLong_Type) {
d = PyLong_AsLongLong(val);
} else if (!strict) {
if (val->ob_type == &PyFloat_Type) {
d = floor(PyFloat_AS_DOUBLE(val));
} else if (val == Py_False) {
d = 0;
} else if (val == Py_True) {
d = 1;
} else {
ok = false;
}
} else {
ok = false;
}
return d;
}
double PythonQtConv::PyObjGetDouble(PyObject* val, bool strict, bool &ok) {
double d = 0;
ok = true;
if (val->ob_type == &PyFloat_Type) {
d = PyFloat_AS_DOUBLE(val);
} else if (!strict) {
if (val->ob_type == &PyInt_Type) {
d = PyInt_AS_LONG(val);
} else if (val->ob_type == &PyLong_Type) {
d = PyLong_AsLong(val);
} else if (val == Py_False) {
d = 0;
} else if (val == Py_True) {
d = 1;
} else {
ok = false;
}
} else {
ok = false;
}
return d;
}
QVariant PythonQtConv::PyObjToQVariant(PyObject* val, int type)
{
QVariant v;
bool ok = true;
if (type==-1) {
// no special type requested
if (val->ob_type==&PyString_Type || val->ob_type==&PyUnicode_Type) {
type = QVariant::String;
} else if (val->ob_type==&PyInt_Type) {
type = QVariant::Int;
} else if (val->ob_type==&PyLong_Type) {
type = QVariant::LongLong;
} else if (val->ob_type==&PyFloat_Type) {
type = QVariant::Double;
} else if (val == Py_False || val == Py_True) {
type = QVariant::Bool;
} else if (val->ob_type == &PythonQtWrapper_Type) {
PythonQtWrapper* wrap = (PythonQtWrapper*)val;
// c++ wrapper, check if the class names of the c++ objects match
if (wrap->_info->isCPPWrapper()) {
// is this worth anything? we loose the knowledge of the cpp object type
v = qVariantFromValue(wrap->_wrappedPtr);
} else {
v = qVariantFromValue(wrap->_obj);
}
return v;
} else if (val->ob_type==&PyDict_Type) {
type = QVariant::Map;
} else if (val->ob_type==&PyList_Type || val->ob_type==&PyTuple_Type || PySequence_Check(val)) {
type = QVariant::List;
} else if (val == Py_None) {
// none is invalid
type = QVariant::Invalid;
} else if (val->ob_type == &PythonQtVariantWrapper_Type) {
PythonQtVariantWrapper* varWrap = (PythonQtVariantWrapper*)val;
if (varWrap->_variant->userType() == type) {
v = *varWrap->_variant;
return v;
}
} else {
// this used to be:
// type = QVariant::String;
// but now we want to transport the Python Objects directly:
PythonQtObjectPtr o(val);
v = qVariantFromValue(o);
return v;
}
}
// special type request:
switch (type) {
case QVariant::Invalid:
return v;
break;
case QVariant::Int:
{
int d = PyObjGetInt(val, false, ok);
if (ok) return QVariant(d);
}
break;
case QVariant::UInt:
{
int d = PyObjGetInt(val, false,ok);
if (ok) v = QVariant((unsigned int)d);
}
break;
case QVariant::Bool:
{
int d = PyObjGetBool(val,false,ok);
if (ok) v = QVariant((bool)(d!=0));
}
break;
case QVariant::Double:
{
double d = PyObjGetDouble(val,false,ok);
if (ok) v = QVariant(d);
break;
}
case QMetaType::Float:
{
float d = (float) PyObjGetDouble(val,false,ok);
if (ok) v = qVariantFromValue(d);
break;
}
case QMetaType::Long:
{
long d = (long) PyObjGetLongLong(val,false,ok);
if (ok) v = qVariantFromValue(d);
break;
}
case QMetaType::ULong:
{
unsigned long d = (unsigned long) PyObjGetLongLong(val,false,ok);
if (ok) v = qVariantFromValue(d);
break;
}
case QMetaType::Short:
{
short d = (short) PyObjGetInt(val,false,ok);
if (ok) v = qVariantFromValue(d);
break;
}
case QMetaType::UShort:
{
unsigned short d = (unsigned short) PyObjGetInt(val,false,ok);
if (ok) v = qVariantFromValue(d);
break;
}
case QMetaType::Char:
{
char d = (char) PyObjGetInt(val,false,ok);
if (ok) v = qVariantFromValue(d);
break;
}
case QMetaType::UChar:
{
unsigned char d = (unsigned char) PyObjGetInt(val,false,ok);
if (ok) v = qVariantFromValue(d);
break;
}
case QVariant::ByteArray:
case QVariant::String:
{
bool ok;
v = QVariant(PyObjGetString(val, false, ok));
}
break;
// these are important for MeVisLab
case QVariant::Map:
{
if (PyMapping_Check(val)) {
QMap<QString,QVariant> map;
PyObject* items = PyMapping_Items(val);
if (items) {
int count = PyList_Size(items);
PyObject* value;
PyObject* key;
PyObject* tuple;
for (int i = 0;i<count;i++) {
tuple = PyList_GetItem(items,i);
key = PyTuple_GetItem(tuple, 0);
value = PyTuple_GetItem(tuple, 1);
map.insert(PyObjGetString(key), PyObjToQVariant(value,-1));
}
Py_DECREF(items);
v = map;
}
}
}
break;
case QVariant::List:
if (PySequence_Check(val)) {
QVariantList list;
int count = PySequence_Size(val);
PyObject* value;
for (int i = 0;i<count;i++) {
value = PySequence_GetItem(val,i);
list.append(PyObjToQVariant(value, -1));
}
v = list;
}
break;
case QVariant::StringList:
{
bool ok;
QStringList l = PyObjToStringList(val, false, ok);
if (ok) {
v = l;
}
}
break;
default:
if (val->ob_type == &PythonQtVariantWrapper_Type) {
PythonQtVariantWrapper* varWrap = (PythonQtVariantWrapper*)val;
if (varWrap->_variant->userType() == type) {
v = *varWrap->_variant;
}
} else {
v = QVariant();
}
}
return v;
}
PyObject* PythonQtConv::QStringToPyObject(const QString& str)
{
if (str.isNull()) {
return PyString_FromString("");
} else {
#ifdef WIN32
// return PyString_FromString(str.toLatin1().data());
return PyUnicode_FromUnicode(str.utf16(), str.length());
#else
return PyUnicode_DecodeUTF16((const char*)str.utf16(), str.length()*2, NULL, NULL);
#endif
}
}
PyObject* PythonQtConv::QStringListToPyObject(const QStringList& list)
{
PyObject* result = PyTuple_New(list.count());
int i = 0;
QString str;
foreach (str, list) {
PyTuple_SET_ITEM(result, i, PythonQtConv::QStringToPyObject(str));
i++;
}
// why is the error state bad after this?
PyErr_Clear();
return result;
}
PyObject* PythonQtConv::QStringListToPyList(const QStringList& list)
{
PyObject* result = PyList_New(list.count());
int i = 0;
for (QStringList::ConstIterator it = list.begin(); it!=list.end(); ++it) {
PyList_SET_ITEM(result, i, PythonQtConv::QStringToPyObject(*it));
i++;
}
return result;
}
PyObject* PythonQtConv::QVariantToPyObject(const QVariant& v)
{
return ConvertQtValueToPythonInternal(v.userType(), (void*)v.constData());
}
PyObject* PythonQtConv::QVariantMapToPyObject(const QVariantMap& m) {
PyObject* result = PyDict_New();
QVariantMap::const_iterator t = m.constBegin();
PyObject* key;
PyObject* val;
for (;t!=m.end();t++) {
key = QStringToPyObject(t.key());
val = QVariantToPyObject(t.value());
PyDict_SetItem(result, key, val);
Py_DECREF(key);
Py_DECREF(val);
}
return result;
}
PyObject* PythonQtConv::QVariantListToPyObject(const QVariantList& l) {
PyObject* result = PyTuple_New(l.count());
int i = 0;
QVariant v;
foreach (v, l) {
PyTuple_SET_ITEM(result, i, PythonQtConv::QVariantToPyObject(v));
i++;
}
// why is the error state bad after this?
PyErr_Clear();
return result;
}
