GIT_REPOSITORIES/LPP/PythonQt Commit - r36:1d1e7c03e848

- added call method that does a direct call on the ObjectType...

florianlink -

r36:1d1e7c03e848

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r36:1d1e7c03e848

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src/PythonQt.cpp +11 -3

              /*
              *
              *  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    PythonQt.cpp
              // \author  Florian Link
              // \author  Last changed by $Author: florian $
              // \date    2006-05
              */
              //----------------------------------------------------------------------------------
              #include "PythonQt.h"
              #include "PythonQtImporter.h"
              #include "PythonQtClassInfo.h"
              #include "PythonQtMethodInfo.h"
              #include "PythonQtSignalReceiver.h"
              #include "PythonQtConversion.h"
              #include "PythonQtStdOut.h"
              #include "PythonQtCppWrapperFactory.h"
              #include "PythonQtVariants.h"
              #include "PythonQtStdDecorators.h"
              #include "PythonQtQFileImporter.h"
              #include <pydebug.h>
              #include <vector>
              PythonQt* PythonQt::_self = NULL;
              int       PythonQt::_uniqueModuleCount = 0;
              void PythonQt::init(int flags)
              {
                if (!_self) {
                  _self = new PythonQt(flags);
                }
                PythonQtMethodInfo::addParameterTypeAlias("QObjectList", "QList<QObject*>");
                qRegisterMetaType<QList<QObject*> >("QList<void*>");
                PythonQtRegisterToolClassesTemplateConverter(int);
                PythonQtRegisterToolClassesTemplateConverter(float);
                PythonQtRegisterToolClassesTemplateConverter(double);
                // TODO: which other POD types should be available for QList etc.
                PythonQt::self()->addDecorators(new PythonQtStdDecorators());
                PythonQt::self()->registerCPPClass("Qt", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_Qt>);
                PythonQt::self()->registerCPPClass("QBitArray", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QBitArray>);
                PythonQt::self()->registerCPPClass("QDate", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QDate>);
                PythonQt::self()->registerCPPClass("QTime", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QTime>);
                PythonQt::self()->registerCPPClass("QDateTime", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QDateTime>);
                PythonQt::self()->registerCPPClass("QUrl", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QUrl>);
                PythonQt::self()->registerCPPClass("QLocale", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QLocale>);
                PythonQt::self()->registerCPPClass("QRect", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QRect>);
                PythonQt::self()->registerCPPClass("QRectF", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QRectF>);
                PythonQt::self()->registerCPPClass("QSize", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QSize>);
                PythonQt::self()->registerCPPClass("QSizeF", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QSizeF>);
                PythonQt::self()->registerCPPClass("QLine", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QLine>);
                PythonQt::self()->registerCPPClass("QLineF", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QLineF>);
                PythonQt::self()->registerCPPClass("QPoint", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QPoint>);
                PythonQt::self()->registerCPPClass("QPointF", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QPointF>);
                PythonQt::self()->registerCPPClass("QRegExp", "", "QtCore", PythonQtCreateObject<PythonQtWrapper_QRegExp>);
                PythonQtRegisterToolClassesTemplateConverter(QDate);
                PythonQtRegisterToolClassesTemplateConverter(QTime);
                PythonQtRegisterToolClassesTemplateConverter(QDateTime);
                PythonQtRegisterToolClassesTemplateConverter(QUrl);
                PythonQtRegisterToolClassesTemplateConverter(QLocale);
                PythonQtRegisterToolClassesTemplateConverter(QRect);
                PythonQtRegisterToolClassesTemplateConverter(QRectF);
                PythonQtRegisterToolClassesTemplateConverter(QSize);
                PythonQtRegisterToolClassesTemplateConverter(QSizeF);
                PythonQtRegisterToolClassesTemplateConverter(QLine);
                PythonQtRegisterToolClassesTemplateConverter(QLineF);
                PythonQtRegisterToolClassesTemplateConverter(QPoint);
                PythonQtRegisterToolClassesTemplateConverter(QPointF);
                PythonQtRegisterToolClassesTemplateConverter(QRegExp);
                PythonQt::self()->registerCPPClass("QFont", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QFont>);
                PythonQt::self()->registerCPPClass("QPixmap", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QPixmap>);
                PythonQt::self()->registerCPPClass("QBrush", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QBrush>);
                PythonQt::self()->registerCPPClass("QColor", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QColor>);
                PythonQt::self()->registerCPPClass("QPalette", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QPalette>);
                PythonQt::self()->registerCPPClass("QIcon", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QIcon>);
                PythonQt::self()->registerCPPClass("QImage", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QImage>);
                PythonQt::self()->registerCPPClass("QPolygon", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QPolygon>);
                PythonQt::self()->registerCPPClass("QRegion", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QRegion>);
                PythonQt::self()->registerCPPClass("QBitmap", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QBitmap>);
                PythonQt::self()->registerCPPClass("QCursor", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QCursor>);
                PythonQt::self()->registerCPPClass("QSizePolicy", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QSizePolicy>);
                PythonQt::self()->registerCPPClass("QKeySequence", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QKeySequence>);
                PythonQt::self()->registerCPPClass("QPen", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QPen>);
                PythonQt::self()->registerCPPClass("QTextLength", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QTextLength>);
                PythonQt::self()->registerCPPClass("QTextFormat", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QTextFormat>);
                PythonQt::self()->registerCPPClass("QMatrix", "", "QtGui", PythonQtCreateObject<PythonQtWrapper_QMatrix>);
                PythonQtRegisterToolClassesTemplateConverter(QFont);
                PythonQtRegisterToolClassesTemplateConverter(QPixmap);
                PythonQtRegisterToolClassesTemplateConverter(QBrush);
                PythonQtRegisterToolClassesTemplateConverter(QColor);
                PythonQtRegisterToolClassesTemplateConverter(QPalette);
                PythonQtRegisterToolClassesTemplateConverter(QIcon);
                PythonQtRegisterToolClassesTemplateConverter(QImage);
                PythonQtRegisterToolClassesTemplateConverter(QPolygon);
                PythonQtRegisterToolClassesTemplateConverter(QRegion);
                PythonQtRegisterToolClassesTemplateConverter(QBitmap);
                PythonQtRegisterToolClassesTemplateConverter(QCursor);
                PythonQtRegisterToolClassesTemplateConverter(QSizePolicy);
                PythonQtRegisterToolClassesTemplateConverter(QKeySequence);
                PythonQtRegisterToolClassesTemplateConverter(QPen);
                PythonQtRegisterToolClassesTemplateConverter(QTextLength);
                PythonQtRegisterToolClassesTemplateConverter(QTextFormat);
                PythonQtRegisterToolClassesTemplateConverter(QMatrix);
              }
              void PythonQt::cleanup()
              {
                if (_self) {
                  delete _self;
                  _self = NULL;
                }
              }
              PythonQt::PythonQt(int flags)
              {
                _p = new PythonQtPrivate;
                _p->_initFlags = flags;
                _p->_PythonQtObjectPtr_metaId = qRegisterMetaType<PythonQtObjectPtr>("PythonQtObjectPtr");
                Py_SetProgramName("PythonQt");
                if (flags & IgnoreSiteModule) {
                  // this prevents the automatic importing of Python site files
                  Py_NoSiteFlag = 1;
                }
                Py_Initialize();
                // add our own python object types for qt object slots
                if (PyType_Ready(&PythonQtSlotFunction_Type) < 0) {
                  std::cerr << "could not initialize PythonQtSlotFunction_Type" << ", in " << __FILE__ << ":" << __LINE__ << std::endl;
                }
                Py_INCREF(&PythonQtSlotFunction_Type);
                // according to Python docs, set the type late here, since it can not safely be stored in the struct when declaring it
                PythonQtClassWrapper_Type.tp_base = &PyType_Type;
                // add our own python object types for classes
                if (PyType_Ready(&PythonQtClassWrapper_Type) < 0) {
                  std::cerr << "could not initialize PythonQtClassWrapper_Type" << ", in " << __FILE__ << ":" << __LINE__ << std::endl;
                }
                Py_INCREF(&PythonQtClassWrapper_Type);
                // add our own python object types for CPP instances
                if (PyType_Ready(&PythonQtInstanceWrapper_Type) < 0) {
                  PythonQt::handleError();
                  std::cerr << "could not initialize PythonQtInstanceWrapper_Type" << ", in " << __FILE__ << ":" << __LINE__ << std::endl;
                }
                Py_INCREF(&PythonQtInstanceWrapper_Type);
                // add our own python object types for redirection of stdout
                if (PyType_Ready(&PythonQtStdOutRedirectType) < 0) {
                  std::cerr << "could not initialize PythonQtStdOutRedirectType" << ", in " << __FILE__ << ":" << __LINE__ << std::endl;
                }
                Py_INCREF(&PythonQtStdOutRedirectType);
                initPythonQtModule(flags & RedirectStdOut);
              }
              PythonQt::~PythonQt() {
                delete _p;
                _p = NULL;
              }
              PythonQtPrivate::~PythonQtPrivate() {
                delete _defaultImporter;
                _defaultImporter = NULL;
                {
                  QHashIterator<QByteArray, PythonQtClassInfo *> i(_knownClassInfos);
                  while (i.hasNext()) {
                    delete i.next().value();
                  }
                }
                PythonQtConv::global_valueStorage.clear();
                PythonQtConv::global_ptrStorage.clear();
                PythonQtConv::global_variantStorage.clear();
                PythonQtMethodInfo::cleanupCachedMethodInfos();
              }
              PythonQtImportFileInterface* PythonQt::importInterface()
              {
                return _self->_p->_importInterface?_self->_p->_importInterface:_self->_p->_defaultImporter;
              }
              void PythonQt::qObjectNoLongerWrappedCB(QObject* o)
              {
                if (_self->_p->_noLongerWrappedCB) {
                  (*_self->_p->_noLongerWrappedCB)(o);
                };
              }
              void PythonQt::registerClass(const QMetaObject* metaobject, const char* package, PythonQtQObjectCreatorFunctionCB* wrapperCreator, PythonQtShellSetInstanceWrapperCB* shell)
              {
                _p->registerClass(metaobject, package, wrapperCreator, shell);
              }
              void PythonQtPrivate::registerClass(const QMetaObject* metaobject, const char* package, PythonQtQObjectCreatorFunctionCB* wrapperCreator, PythonQtShellSetInstanceWrapperCB* shell)
              {
                // we register all classes in the hierarchy
                const QMetaObject* m = metaobject;
                bool first = true;
                while (m) {
                  PythonQtClassInfo* info = lookupClassInfoAndCreateIfNotPresent(m->className());
                  if (!info->pythonQtClassWrapper()) {
                    info->setupQObject(m);
                    createPythonQtClassWrapper(info, package);
                    if (m->superClass()) {
                      PythonQtClassInfo* parentInfo = lookupClassInfoAndCreateIfNotPresent(m->superClass()->className());
                      info->addParentClass(PythonQtClassInfo::ParentClassInfo(parentInfo));
                    }
                  }
                  if (first) {
                    first = false;
                    if (wrapperCreator) {
                      info->setDecoratorProvider(wrapperCreator);
                    }
                    if (shell) {
                      info->setShellSetInstanceWrapperCB(shell);
                    }
                  }
                  m = m->superClass();
                }
              }
              void PythonQtPrivate::createPythonQtClassWrapper(PythonQtClassInfo* info, const char* package)
              {
                PyObject* pack = packageByName(package);
                PyObject* pyobj = (PyObject*)createNewPythonQtClassWrapper(info, package);
                PyModule_AddObject(pack, info->className(), pyobj);
                if (package && strncmp(package,"Qt",2)==0) {
                  // since PyModule_AddObject steals the reference, we need a incref once more...
                  Py_INCREF(pyobj);
                  // put all qt objects into Qt as well
                  PyModule_AddObject(packageByName("Qt"), info->className(), pyobj);
                }
                info->setPythonQtClassWrapper(pyobj);
              }
              bool PythonQtPrivate::isEnumType(const QMetaObject* meta, const QByteArray& name) {
                int i = meta?meta->indexOfEnumerator(name.constData()):-1;
                if (i!=-1) {
                  return true;
                } else {
                  // look for scope
                  int scopePos = name.indexOf("::");
                  if (scopePos != -1) {
                    // slit into scope and enum name
                    QByteArray enumScope = name.mid(0,scopePos);
                    QByteArray enumName = name.mid(scopePos+2);
                    if (enumScope == "Qt") {
                      // special qt namespace case
                      return isEnumType(&staticQtMetaObject, enumName);
                    } else {
                      // look for known classes as scope
                      // TODO: Q_GADGETS are not yet handled
                      PythonQtClassInfo* info = _knownClassInfos.value(enumScope);
                      if (info) {
                        return isEnumType(info->metaObject(), enumName);
                      }
                    }
                  }
                }
                return false;
              }
              PyObject* PythonQtPrivate::wrapQObject(QObject* obj)
              {
                if (!obj) {
                  Py_INCREF(Py_None);
                  return Py_None;
                }
                PythonQtInstanceWrapper* wrap = findWrapperAndRemoveUnused(obj);
                if (!wrap) {
                  // smuggling it in...
                  PythonQtClassInfo* classInfo = _knownClassInfos.value(obj->metaObject()->className());
                  if (!classInfo || classInfo->pythonQtClassWrapper()==NULL) {
                    registerClass(obj->metaObject());
                    classInfo = _knownClassInfos.value(obj->metaObject()->className());
                  }
                  wrap = createNewPythonQtInstanceWrapper(obj, classInfo);
                  //    mlabDebugConst("MLABPython","new qobject wrapper added " << " " << wrap->_obj->className() << " " << wrap->classInfo()->wrappedClassName().latin1());
                } else {
                  Py_INCREF(wrap);
                  //    mlabDebugConst("MLABPython","qobject wrapper reused " << wrap->_obj->className() << " " << wrap->classInfo()->wrappedClassName().latin1());
                }
                return (PyObject*)wrap;
              }
              PyObject* PythonQtPrivate::wrapPtr(void* ptr, const QByteArray& name)
              {
                if (!ptr) {
                  Py_INCREF(Py_None);
                  return Py_None;
                }
                PythonQtInstanceWrapper* wrap = findWrapperAndRemoveUnused(ptr);
                if (!wrap) {
                  PythonQtClassInfo* info = _knownClassInfos.value(name);
                  if (!info) {
                    // maybe it is a PyObject, which we can return directly
                    if (name == "PyObject") {
                      PyObject* p = (PyObject*)ptr;
                      Py_INCREF(p);
                      return p;
                    }
                    // we do not know the metaobject yet, but we might know it by it's name:
                    if (_knownQObjectClassNames.find(name)!=_knownQObjectClassNames.end()) {
                      // yes, we know it, so we can convert to QObject
                      QObject* qptr = (QObject*)ptr;
                      registerClass(qptr->metaObject());
                      info = _knownClassInfos.value(qptr->metaObject()->className());
                    }
                  }
                  if (info && info->isQObject()) {
                    QObject* qptr = (QObject*)ptr;
                    // if the object is a derived object, we want to switch the class info to the one of the derived class:
                    if (name!=(qptr->metaObject()->className())) {
                      registerClass(qptr->metaObject());
                      info = _knownClassInfos.value(qptr->metaObject()->className());
                    }
                    wrap = createNewPythonQtInstanceWrapper(qptr, info);
                    //    mlabDebugConst("MLABPython","new qobject wrapper added " << " " << wrap->_obj->className() << " " << wrap->classInfo()->wrappedClassName().latin1());
                    return (PyObject*)wrap;
                  }
                  // not a known QObject, so try our wrapper factory:
                  QObject* wrapper = NULL;
                  for (int i=0; i<_cppWrapperFactories.size(); i++) {
                    wrapper = _cppWrapperFactories.at(i)->create(name, ptr);
                    if (wrapper) {
                      break;
                    }
                  }
                  if (info) {
                    // try to downcast in the class hierarchy, which will modify info and ptr if it is successfull
                    ptr  = info->castDownIfPossible(ptr, &info);
                  }
                  if (!info || info->pythonQtClassWrapper()==NULL) {
                    // still unknown, register as CPP class
                    registerCPPClass(name.constData());
                    info = _knownClassInfos.value(name);
                  }
                  if (wrapper && (info->metaObject() != wrapper->metaObject())) {
                    // if we a have a QObject wrapper and the metaobjects do not match, set the metaobject again!
                    info->setMetaObject(wrapper->metaObject());
                  }
                  wrap = createNewPythonQtInstanceWrapper(wrapper, info, ptr);
                  //          mlabDebugConst("MLABPython","new c++ wrapper added " << wrap->_wrappedPtr << " " << wrap->_obj->className() << " " << wrap->classInfo()->wrappedClassName().latin1());
                } else {
                  Py_INCREF(wrap);
                  //mlabDebugConst("MLABPython","c++ wrapper reused " << wrap->_wrappedPtr << " " << wrap->_obj->className() << " " << wrap->classInfo()->wrappedClassName().latin1());
                }
                return (PyObject*)wrap;
              }
              PyObject* PythonQtPrivate::dummyTuple() {
                static PyObject* dummyTuple = NULL;
                if (dummyTuple==NULL) {
                  dummyTuple = PyTuple_New(1);
                  PyTuple_SET_ITEM(dummyTuple, 0 , PyString_FromString("dummy"));
                }
                return dummyTuple;
              }
              PythonQtInstanceWrapper* PythonQtPrivate::createNewPythonQtInstanceWrapper(QObject* obj, PythonQtClassInfo* info, void* wrappedPtr) {
                // call the associated class type to create a new instance...
                PythonQtInstanceWrapper* result = (PythonQtInstanceWrapper*)PyObject_Call(info->pythonQtClassWrapper(), dummyTuple(), NULL);
                result->setQObject(obj);
                result->_wrappedPtr = wrappedPtr;
                result->_ownedByPythonQt = false;
                result->_useQMetaTypeDestroy = false;
                if (wrappedPtr) {
                  _wrappedObjects.insert(wrappedPtr, result);
                } else {
                  _wrappedObjects.insert(obj, result);
                  if (obj->parent()== NULL && _wrappedCB) {
                    // tell someone who is interested that the qobject is wrapped the first time, if it has no parent
                    (*_wrappedCB)(obj);
                  }
                }
                return result;
              }
              PythonQtClassWrapper* PythonQtPrivate::createNewPythonQtClassWrapper(PythonQtClassInfo* info, const char* package) {
                PythonQtClassWrapper* result;
                PyObject* className = PyString_FromString(info->className());
                PyObject* baseClasses = PyTuple_New(1);
                PyTuple_SET_ITEM(baseClasses, 0, (PyObject*)&PythonQtInstanceWrapper_Type);
                PyObject* typeDict = PyDict_New();
                QByteArray moduleName("PythonQt");
                if (package && strcmp(package, "")!=0) {
                  moduleName += ".";
                  moduleName += package;
                }
                PyDict_SetItemString(typeDict, "__module__", PyString_FromString(moduleName.constData()));
                PyObject* args  = Py_BuildValue("OOO", className, baseClasses, typeDict);
                // set the class info so that PythonQtClassWrapper_new can read it
                _currentClassInfoForClassWrapperCreation = info;
                // create the new type object by calling the type
                result = (PythonQtClassWrapper *)PyObject_Call((PyObject *)&PythonQtClassWrapper_Type, args, NULL);
                Py_DECREF(baseClasses);
                Py_DECREF(typeDict);
                Py_DECREF(args);
                Py_DECREF(className);
                return result;
              }
              PythonQtSignalReceiver* PythonQt::getSignalReceiver(QObject* obj)
              {
                PythonQtSignalReceiver* r = _p->_signalReceivers[obj];
                if (!r) {
                  r = new PythonQtSignalReceiver(obj);
                  _p->_signalReceivers.insert(obj, r);
                }
                return r;
              }
              bool PythonQt::addSignalHandler(QObject* obj, const char* signal, PyObject* module, const QString& objectname)
              {
                bool flag = false;
                PythonQtObjectPtr callable = lookupCallable(module, objectname);
                if (callable) {
                  PythonQtSignalReceiver* r = getSignalReceiver(obj);
                  flag = r->addSignalHandler(signal, callable);
                  if (!flag) {
                    // signal not found
                  }
                } else {
                  // callable not found
                }
                return flag;
              }
              bool PythonQt::addSignalHandler(QObject* obj, const char* signal, PyObject* receiver)
              {
                bool flag = false;
                PythonQtSignalReceiver* r = getSignalReceiver(obj);
                if (r) {
                  flag = r->addSignalHandler(signal, receiver);
                }
                return flag;
              }
              bool PythonQt::removeSignalHandler(QObject* obj, const char* signal, PyObject* module, const QString& objectname)
              {
                bool flag = false;
                PythonQtObjectPtr callable = lookupCallable(module, objectname);
                if (callable) {
                  PythonQtSignalReceiver* r = _p->_signalReceivers[obj];
                  if (r) {
                    flag = r->removeSignalHandler(signal, callable);
                  }
                } else {
                  // callable not found
                }
                return flag;
              }
              bool PythonQt::removeSignalHandler(QObject* obj, const char* signal, PyObject* receiver)
              {
                bool flag = false;
                PythonQtSignalReceiver* r = _p->_signalReceivers[obj];
                if (r) {
                  flag = r->removeSignalHandler(signal, receiver);
                }
                return flag;
              }
              PythonQtObjectPtr PythonQt::lookupCallable(PyObject* module, const QString& name)
              {
                PythonQtObjectPtr p = lookupObject(module, name);
                if (p) {
                  if (PyCallable_Check(p)) {
                    return p;
                  }
                }
                PyErr_Clear();
                return NULL;
              }
              PythonQtObjectPtr PythonQt::lookupObject(PyObject* module, const QString& name)
              {
                QStringList l = name.split('.');
                PythonQtObjectPtr p = module;
                PythonQtObjectPtr prev;
                QString s;
                QByteArray b;
                for (QStringList::ConstIterator i = l.begin(); i!=l.end() && p; ++i) {
                  prev = p;
                  b = (*i).toLatin1();
                  if (PyDict_Check(p)) {
                    p = PyDict_GetItemString(p, b.data());
                  } else {
                    p.setNewRef(PyObject_GetAttrString(p, b.data()));
                  }
                }
                PyErr_Clear();
                return p;
              }
              PythonQtObjectPtr PythonQt::getMainModule() {
                //both borrowed
                PythonQtObjectPtr dict = PyImport_GetModuleDict();
                return PyDict_GetItemString(dict, "__main__");
              }
              QVariant PythonQt::evalCode(PyObject* object, PyObject* pycode) {
                QVariant result;
                if (pycode) {
                  PyObject* dict = NULL;
                  if (PyModule_Check(object)) {
                    dict = PyModule_GetDict(object);
                  } else if (PyDict_Check(object)) {
                    dict = object;
                  }
                  PyObject* r = NULL;
                  if (dict) {
                    r = PyEval_EvalCode((PyCodeObject*)pycode, dict , dict);
                  }
                  if (r) {
                    result = PythonQtConv::PyObjToQVariant(r);
                    Py_DECREF(r);
                  } else {
                    handleError();
                  }
                } else {
                  handleError();
                }
                return result;
              }
              QVariant PythonQt::evalScript(PyObject* object, const QString& script, int start)
              {
                QVariant result;
                PythonQtObjectPtr p;
                PyObject* dict = NULL;
                if (PyModule_Check(object)) {
                  dict = PyModule_GetDict(object);
                } else if (PyDict_Check(object)) {
                  dict = object;
                }
                if (dict) {
                  p.setNewRef(PyRun_String(script.toLatin1().data(), start, dict, dict));
                }
                if (p) {
                  result = PythonQtConv::PyObjToQVariant(p);
                } else {
                  handleError();
                }
                return result;
              }
              void PythonQt::evalFile(PyObject* module, const QString& filename)
              {
                PythonQtObjectPtr code = parseFile(filename);
                if (code) {
                  evalCode(module, code);
                } else {
                  handleError();
                }
              }
              PythonQtObjectPtr PythonQt::parseFile(const QString& filename)
              {
                PythonQtObjectPtr p;
                p.setNewRef(PythonQtImport::getCodeFromPyc(filename));
                if (!p) {
                  handleError();
                }
                return p;
              }
              PythonQtObjectPtr PythonQt::createModuleFromFile(const QString& name, const QString& filename)
              {
                PythonQtObjectPtr code = parseFile(filename);
                PythonQtObjectPtr module = _p->createModule(name, code);
                return module;
              }
              PythonQtObjectPtr PythonQt::createModuleFromScript(const QString& name, const QString& script)
              {
                PyErr_Clear();
                QString scriptCode = script;
                if (scriptCode.isEmpty()) {
                  // we always need at least a linefeed
                  scriptCode = "\n";
                }
                PythonQtObjectPtr pycode;
                pycode.setNewRef(Py_CompileString((char*)scriptCode.toLatin1().data(), "",  Py_file_input));
                PythonQtObjectPtr module = _p->createModule(name, pycode);
                return module;
              }
              PythonQtObjectPtr PythonQt::createUniqueModule()
              {
                static QString pyQtStr("PythonQt_module");
                QString moduleName = pyQtStr+QString::number(_uniqueModuleCount++);
                return createModuleFromScript(moduleName);
              }
              void PythonQt::addObject(PyObject* object, const QString& name, QObject* qObject)
              {
                if (PyModule_Check(object)) {
                  PyModule_AddObject(object, name.toLatin1().data(), _p->wrapQObject(qObject));
                } else if (PyDict_Check(object)) {
                  PyDict_SetItemString(object, name.toLatin1().data(), _p->wrapQObject(qObject));
                } else {
                  PyObject_SetAttrString(object, name.toLatin1().data(), _p->wrapQObject(qObject));
                }
              }
              void PythonQt::addVariable(PyObject* object, const QString& name, const QVariant& v)
              {
                if (PyModule_Check(object)) {
                  PyModule_AddObject(object, name.toLatin1().data(), PythonQtConv::QVariantToPyObject(v));
                } else if (PyDict_Check(object)) {
                  PyDict_SetItemString(object, name.toLatin1().data(), PythonQtConv::QVariantToPyObject(v));
                } else {
                  PyObject_SetAttrString(object, name.toLatin1().data(), PythonQtConv::QVariantToPyObject(v));
                }
              }
              void PythonQt::removeVariable(PyObject* object, const QString& name)
              {
                if (PyDict_Check(object)) {
                  PyDict_DelItemString(object, name.toLatin1().data());
                } else {
                  PyObject_DelAttrString(object, name.toLatin1().data());
                }
              }
              QVariant PythonQt::getVariable(PyObject* object, const QString& objectname)
              {
                QVariant result;
                PythonQtObjectPtr obj = lookupObject(object, objectname);
                if (obj) {
                  result = PythonQtConv::PyObjToQVariant(obj);
                }
                return result;
              }
              QStringList PythonQt::introspection(PyObject* module, const QString& objectname, PythonQt::ObjectType type)
              {
                QStringList results;
                PythonQtObjectPtr object;
                if (objectname.isEmpty()) {
                  object = module;
                } else {
                  object = lookupObject(module, objectname);
                  if (!object && type == CallOverloads) {
                    PyObject* dict = lookupObject(module, "__builtins__");
                    if (dict) {
                      object = PyDict_GetItemString(dict, objectname.toLatin1().constData());
                    }
                  }
                }
                if (object) {
                  if (type == CallOverloads) {
                    if (PythonQtSlotFunction_Check(object)) {
                      PythonQtSlotFunctionObject* o = (PythonQtSlotFunctionObject*)object.object();
                      PythonQtSlotInfo* info = o->m_ml;
                      while (info) {
                        results << info->fullSignature();
                        info = info->nextInfo();
                      }
                    } else if (object->ob_type == &PythonQtClassWrapper_Type) {
                      PythonQtClassWrapper* o = (PythonQtClassWrapper*)object.object();
                      PythonQtSlotInfo* info = o->classInfo()->constructors();
                      while (info) {
                        results << info->fullSignature();
                        info = info->nextInfo();
                      }
                    } else {
                      //TODO: use pydoc!
                      PyObject* doc = PyObject_GetAttrString(object, "__doc__");
                      if (doc) {
                        results << PyString_AsString(doc);
                        Py_DECREF(doc);
                      }
                    }
                  } else {
                    PyObject* keys = NULL;
                    bool isDict = false;
                    if (PyDict_Check(object)) {
                      keys = PyDict_Keys(object);
                      isDict = true;
                    } else {
                      keys = PyObject_Dir(object);
                    }
                    if (keys) {
                      int count = PyList_Size(keys);
                      PyObject* key;
                      PyObject* value;
                      QString keystr;
                      for (int i = 0;i<count;i++) {
                        key = PyList_GetItem(keys,i);
                        if (isDict) {
                          value = PyDict_GetItem(object, key);
                          Py_INCREF(value);
                        } else {
                          value = PyObject_GetAttr(object, key);
                        }
                        if (!value) continue;
                        keystr = PyString_AsString(key);
                        static const QString underscoreStr("__tmp");
                        if (!keystr.startsWith(underscoreStr)) {
                          switch (type) {
                          case Anything:
                            results << keystr;
                            break;
                          case Class:
                            if (value->ob_type == &PyClass_Type) {
                              results << keystr;
                            }
                            break;
                          case Variable:
                            if (value->ob_type != &PyClass_Type
                              && value->ob_type != &PyCFunction_Type
                              && value->ob_type != &PyFunction_Type
                              && value->ob_type != &PyModule_Type
                              ) {
                              results << keystr;
                            }
                            break;
                          case Function:
                            if (value->ob_type == &PyFunction_Type ||
                              value->ob_type == &PyMethod_Type
                              ) {
                              results << keystr;
                            }
                            break;
                          case Module:
                            if (value->ob_type == &PyModule_Type) {
                              results << keystr;
                            }
                            break;
                          default:
                            std::cerr << "PythonQt: introspection: unknown case" << ", in " << __FILE__ << ":" << __LINE__ << std::endl;
                          }
                        }
                        Py_DECREF(value);
                      }
                      Py_DECREF(keys);
                    }
                  }
                }
                return results;
              }
-             QVariant PythonQt::call(PyObject* module, const QString& name, const QVariantList& args)
+             QVariant PythonQt::call(PyObject* object, const QString& name, const QVariantList& args)
+             {
+               PythonQtObjectPtr callable = lookupCallable(object, name);
+               if (callable) {
+                 return call(callable, args);
+               } else {
+                 return QVariant();
+               }
+             }
+             QVariant PythonQt::call(PyObject* callable, const QVariantList& args)
              {
                QVariant r;
-               PythonQtObjectPtr callable = lookupCallable(module, name);
                if (callable) {
                  PythonQtObjectPtr pargs;
                  int count = args.size();
                  if (count>0) {
                    pargs.setNewRef(PyTuple_New(count));
                  }
                  bool err = false;
                  // transform QVariants to Python
                  for (int i = 0; i < count; i++) {
                    PyObject* arg = PythonQtConv::QVariantToPyObject(args.at(i));
                    if (arg) {
                      // steals reference, no unref
                      PyTuple_SetItem(pargs, i,arg);
                    } else {
                      err = true;
                      break;
                    }
                  }
                  if (!err) {
                    PyErr_Clear();
                    PythonQtObjectPtr result;
                    result.setNewRef(PyObject_CallObject(callable, pargs));
                    if (result) {
                      // ok
                      r = PythonQtConv::PyObjToQVariant(result);
                    } else {
                      PythonQt::self()->handleError();
                    }
                  }
                }
                return r;
              }
              void PythonQt::addInstanceDecorators(QObject* o)
              {
                _p->addDecorators(o, PythonQtPrivate::InstanceDecorator);
              }
              void PythonQt::addClassDecorators(QObject* o)
              {
                _p->addDecorators(o, PythonQtPrivate::StaticDecorator | PythonQtPrivate::ConstructorDecorator | PythonQtPrivate::DestructorDecorator);
              }
              void PythonQt::addDecorators(QObject* o)
              {
                _p->addDecorators(o, PythonQtPrivate::AllDecorators);
              }
              void PythonQt::registerQObjectClassNames(const QStringList& names)
              {
                _p->registerQObjectClassNames(names);
              }
              void PythonQt::setImporter(PythonQtImportFileInterface* importInterface)
              {
                PythonQtImport::init();
                _p->_importInterface = importInterface;
              }
              void PythonQt::setImporterIgnorePaths(const QStringList& paths)
              {
                _p->_importIgnorePaths = paths;
              }
              const QStringList& PythonQt::getImporterIgnorePaths()
              {
                return _p->_importIgnorePaths;
              }
              void PythonQt::addWrapperFactory(PythonQtCppWrapperFactory* factory)
              {
                _p->_cppWrapperFactories.append(factory);
              }
              //---------------------------------------------------------------------------------------------------
              PythonQtPrivate::PythonQtPrivate()
              {
                _importInterface = NULL;
                _defaultImporter = new PythonQtQFileImporter;
                _noLongerWrappedCB = NULL;
                _wrappedCB = NULL;
                _currentClassInfoForClassWrapperCreation = NULL;
              }
              PythonQtClassInfo* PythonQtPrivate::currentClassInfoForClassWrapperCreation()
              {
                PythonQtClassInfo* info = _currentClassInfoForClassWrapperCreation;
                _currentClassInfoForClassWrapperCreation = NULL;
                return info;
              }
              void PythonQtPrivate::addDecorators(QObject* o, int decoTypes)
              {
                o->setParent(this);
                int numMethods = o->metaObject()->methodCount();
                for (int i = 0; i < numMethods; i++) {
                  QMetaMethod m = o->metaObject()->method(i);
                  if ((m.methodType() == QMetaMethod::Method ||
                    m.methodType() == QMetaMethod::Slot) && m.access() == QMetaMethod::Public) {
                   const PythonQtMethodInfo* info = PythonQtMethodInfo::getCachedMethodInfo(m);
                    if (qstrncmp(m.signature(), "new_", 4)==0) {
                      if ((decoTypes & ConstructorDecorator) == 0) continue;
                      // either it returns a * or a QVariant and the name starts with "new_"
                      bool isVariantReturn = info->parameters().at(0).typeId == PythonQtMethodInfo::Variant;
                      if ((info->parameters().at(0).isPointer || isVariantReturn)) {
                        QByteArray signature = m.signature();
                        QByteArray nameOfClass = signature.mid(4, signature.indexOf('(')-4);
                        PythonQtClassInfo* classInfo = lookupClassInfoAndCreateIfNotPresent(nameOfClass);
                        PythonQtSlotInfo* newSlot = new PythonQtSlotInfo(m, i, o, PythonQtSlotInfo::ClassDecorator);
                        classInfo->addConstructor(newSlot);
                      }
                    } else if (qstrncmp(m.signature(), "delete_", 7)==0) {
                      if ((decoTypes & DestructorDecorator) == 0) continue;
                      QByteArray signature = m.signature();
                      QByteArray nameOfClass = signature.mid(7, signature.indexOf('(')-7);
                      PythonQtClassInfo* classInfo = lookupClassInfoAndCreateIfNotPresent(nameOfClass);
                      PythonQtSlotInfo* newSlot = new PythonQtSlotInfo(m, i, o, PythonQtSlotInfo::ClassDecorator);
                      classInfo->setDestructor(newSlot);
                    } else if (qstrncmp(m.signature(), "static_", 7)==0) {
                      if ((decoTypes & StaticDecorator) == 0) continue;
                      QByteArray signature = m.signature();
                      QByteArray nameOfClass = signature.mid(signature.indexOf('_')+1);
                      nameOfClass = nameOfClass.mid(0, nameOfClass.indexOf('_'));
                      PythonQtClassInfo* classInfo = lookupClassInfoAndCreateIfNotPresent(nameOfClass);
                      PythonQtSlotInfo* newSlot = new PythonQtSlotInfo(m, i, o, PythonQtSlotInfo::ClassDecorator);
                      classInfo->addDecoratorSlot(newSlot);
                    } else {
                      if ((decoTypes & InstanceDecorator) == 0) continue;
                      if (info->parameters().count()>1) {
                        PythonQtMethodInfo::ParameterInfo p = info->parameters().at(1);
                        if (p.isPointer) {
                          PythonQtClassInfo* classInfo = lookupClassInfoAndCreateIfNotPresent(p.name);
                          PythonQtSlotInfo* newSlot = new PythonQtSlotInfo(m, i, o, PythonQtSlotInfo::InstanceDecorator);
                          classInfo->addDecoratorSlot(newSlot);
                        }
                      }
                    }
                  }
                }
              }
              void PythonQtPrivate::registerQObjectClassNames(const QStringList& names)
              {
                foreach(QString name, names) {
                  _knownQObjectClassNames.insert(name.toLatin1(), true);
                }
              }
              void PythonQtPrivate::removeSignalEmitter(QObject* obj)
              {
                _signalReceivers.remove(obj);
              }
              bool PythonQt::handleError()
              {
                bool flag = false;
                if (PyErr_Occurred()) {
                  // currently we just print the error and the stderr handler parses the errors
                  PyErr_Print();
                  /*
                  // EXTRA: the format of the ptype and ptraceback is not really documented, so I use PyErr_Print() above
                  PyObject *ptype;
                  PyObject *pvalue;
                  PyObject *ptraceback;
                  PyErr_Fetch( &ptype, &pvalue, &ptraceback);
                    Py_XDECREF(ptype);
                    Py_XDECREF(pvalue);
                    Py_XDECREF(ptraceback);
                  */
                  PyErr_Clear();
                  flag = true;
                }
                return flag;
              }
              void PythonQt::addSysPath(const QString& path)
              {
                PythonQtObjectPtr sys;
                sys.setNewRef(PyImport_ImportModule("sys"));
                PythonQtObjectPtr obj = lookupObject(sys, "path");
                PyList_Insert(obj, 0, PythonQtConv::QStringToPyObject(path));
              }
              void PythonQt::overwriteSysPath(const QStringList& paths)
              {
                PythonQtObjectPtr sys;
                sys.setNewRef(PyImport_ImportModule("sys"));
                PyModule_AddObject(sys, "path", PythonQtConv::QStringListToPyList(paths));
              }
              void PythonQt::setModuleImportPath(PyObject* module, const QStringList& paths)
              {
                PyModule_AddObject(module, "__path__", PythonQtConv::QStringListToPyList(paths));
              }
              void PythonQt::stdOutRedirectCB(const QString& str)
              {
                emit PythonQt::self()->pythonStdOut(str);
              }
              void PythonQt::stdErrRedirectCB(const QString& str)
              {
                emit PythonQt::self()->pythonStdErr(str);
              }
              void PythonQt::setQObjectWrappedCallback(PythonQtQObjectWrappedCB* cb)
              {
                _p->_wrappedCB = cb;
              }
              void PythonQt::setQObjectNoLongerWrappedCallback(PythonQtQObjectNoLongerWrappedCB* cb)
              {
                _p->_noLongerWrappedCB = cb;
              }
              static PyMethodDef PythonQtMethods[] = {
                {NULL, NULL, 0, NULL}
              };
              void PythonQt::initPythonQtModule(bool redirectStdOut)
              {
                _p->_pythonQtModule = Py_InitModule("PythonQt", PythonQtMethods);
                if (redirectStdOut) {
                  PythonQtObjectPtr sys;
                  PythonQtObjectPtr out;
                  PythonQtObjectPtr err;
                  sys.setNewRef(PyImport_ImportModule("sys"));
                  // create a redirection object for stdout and stderr
                  out = PythonQtStdOutRedirectType.tp_new(&PythonQtStdOutRedirectType,NULL, NULL);
                  ((PythonQtStdOutRedirect*)out.object())->_cb = stdOutRedirectCB;
                  err = PythonQtStdOutRedirectType.tp_new(&PythonQtStdOutRedirectType,NULL, NULL);
                  ((PythonQtStdOutRedirect*)err.object())->_cb = stdErrRedirectCB;
                  // replace the built in file objects with our own objects
                  PyModule_AddObject(sys, "stdout", out);
                  PyModule_AddObject(sys, "stderr", err);
                }
              }
              void PythonQt::registerCPPClass(const char* typeName, const char* parentTypeName, const char* package, PythonQtQObjectCreatorFunctionCB* wrapperCreator,  PythonQtShellSetInstanceWrapperCB* shell)
              {
                _p->registerCPPClass(typeName, parentTypeName, package, wrapperCreator, shell);
              }
              PythonQtClassInfo* PythonQtPrivate::lookupClassInfoAndCreateIfNotPresent(const char* typeName)
              {
                PythonQtClassInfo* info = _knownClassInfos.value(typeName);
                if (!info) {
                  info = new PythonQtClassInfo();
                  info->setupCPPObject(typeName);
                  _knownClassInfos.insert(typeName, info);
                }
                return info;
              }
              void PythonQt::addPolymorphicHandler(const char* typeName, PythonQtPolymorphicHandlerCB* cb)
              {
                _p->addPolymorphicHandler(typeName, cb);
              }
              void PythonQtPrivate::addPolymorphicHandler(const char* typeName, PythonQtPolymorphicHandlerCB* cb)
              {
                PythonQtClassInfo* info = lookupClassInfoAndCreateIfNotPresent(typeName);
                info->addPolymorphicHandler(cb);
              }
              bool PythonQt::addParentClass(const char* typeName, const char* parentTypeName, int upcastingOffset)
              {
                return _p->addParentClass(typeName, parentTypeName, upcastingOffset);
              }
              bool PythonQtPrivate::addParentClass(const char* typeName, const char* parentTypeName, int upcastingOffset)
              {
                PythonQtClassInfo* info = _knownClassInfos.value(typeName);
                if (info) {
                  PythonQtClassInfo* parentInfo = lookupClassInfoAndCreateIfNotPresent(parentTypeName);
                  info->addParentClass(PythonQtClassInfo::ParentClassInfo(parentInfo, upcastingOffset));
                  return true;
                } else {
                  return false;
                }
              }
              void PythonQtPrivate::registerCPPClass(const char* typeName, const char* parentTypeName, const char* package, PythonQtQObjectCreatorFunctionCB* wrapperCreator,  PythonQtShellSetInstanceWrapperCB* shell)
              {
                PythonQtClassInfo* info = lookupClassInfoAndCreateIfNotPresent(typeName);
                if (!info->pythonQtClassWrapper()) {
                  info->setupCPPObject(typeName);
                  createPythonQtClassWrapper(info, package);
                }
                if (parentTypeName && strcmp(parentTypeName,"")!=0) {
                  addParentClass(typeName, parentTypeName, 0);
                }
                if (wrapperCreator) {
                  info->setDecoratorProvider(wrapperCreator);
                }
                if (shell) {
                  info->setShellSetInstanceWrapperCB(shell);
                }
              }
              PyObject* PythonQtPrivate::packageByName(const char* name)
              {
                if (name==NULL || name[0]==0) {
                  return _pythonQtModule;
                }
                PyObject* v = _packages.value(name);
                if (!v) {
                  v = PyImport_AddModule((QByteArray("PythonQt.") + name).constData());
                  _packages.insert(name, v);
                  // AddObject steals the reference, so increment it!
                  Py_INCREF(v);
                  PyModule_AddObject(_pythonQtModule, name, v);
                }
                return v;
              }
              PyObject* PythonQt::helpCalled(PythonQtClassInfo* info)
              {
                if (_p->_initFlags & ExternalHelp) {
                  emit pythonHelpRequest(QByteArray(info->className()));
                  return Py_BuildValue("");
                } else {
                  return PyString_FromString(info->help().toLatin1().data());
                }
              }
              void PythonQtPrivate::removeWrapperPointer(void* obj)
              {
                _wrappedObjects.remove(obj);
              }
              void PythonQtPrivate::addWrapperPointer(void* obj, PythonQtInstanceWrapper* wrapper)
              {
                _wrappedObjects.insert(obj, wrapper);
              }
              PythonQtInstanceWrapper* PythonQtPrivate::findWrapperAndRemoveUnused(void* obj)
              {
                PythonQtInstanceWrapper* wrap = _wrappedObjects.value(obj);
                if (wrap && !wrap->_wrappedPtr && wrap->_obj == NULL) {
                  // this is a wrapper whose QObject was already removed due to destruction
                  // so the obj pointer has to be a new QObject with the same address...
                  // we remove the old one and set the copy to NULL
                  wrap->_objPointerCopy = NULL;
                  removeWrapperPointer(obj);
                  wrap = NULL;
                }
                return wrap;
              }
              PythonQtObjectPtr PythonQtPrivate::createModule(const QString& name, PyObject* pycode)
              {
                PythonQtObjectPtr result;
                if (pycode) {
                  result.setNewRef(PyImport_ExecCodeModule((char*)name.toLatin1().data(), pycode));
                } else {
                  PythonQt::self()->handleError();
                }
                return result;
              }

src/PythonQt.h +5 -2

              #ifndef _PYTHONQT_H
              #define _PYTHONQT_H
              /*
               *
               *  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    PythonQt.h
              // \author  Florian Link
              // \author  Last changed by $Author: florian $
              // \date    2006-05
              */
              //----------------------------------------------------------------------------------
              #include "PythonQtSystem.h"
              #include "PythonQtInstanceWrapper.h"
              #include "PythonQtClassWrapper.h"
              #include "PythonQtSlot.h"
              #include "PythonQtObjectPtr.h"
              #include <QObject>
              #include <QVariant>
              #include <QList>
              #include <QHash>
              #include <QByteArray>
              #include <QStringList>
              #include <QtDebug>
              #include <iostream>
              class PythonQtClassInfo;
              class PythonQtPrivate;
              class PythonQtMethodInfo;
              class PythonQtSignalReceiver;
              class PythonQtImportFileInterface;
              class PythonQtCppWrapperFactory;
              class PythonQtQFileImporter;
              typedef void  PythonQtQObjectWrappedCB(QObject* object);
              typedef void  PythonQtQObjectNoLongerWrappedCB(QObject* object);
              typedef void* PythonQtPolymorphicHandlerCB(const void *ptr, char **class_name);
              typedef void PythonQtShellSetInstanceWrapperCB(void* object, PythonQtInstanceWrapper* wrapper);
              template<class T> void PythonQtSetInstanceWrapperOnShell(void* object, PythonQtInstanceWrapper* wrapper) { ((T*)object)->_wrapper = wrapper; };
              //! returns the offset that needs to be added to upcast an object of type T1 to T2
              template<class T1, class T2> int PythonQtUpcastingOffset() {
                return (((char*)(static_cast<T2*>(reinterpret_cast<T1*>(0x100)))) - ((char*)reinterpret_cast<T1*>(0x100)));
              }
              //! callback to create a QObject lazily
              typedef QObject* PythonQtQObjectCreatorFunctionCB();
              //! helper template to create a derived QObject class
              template<class T> QObject* PythonQtCreateObject() { return new T(); };
              //! the main interface to the Python Qt binding, realized as a singleton
              class PYTHONQT_EXPORT PythonQt : public QObject {
                Q_OBJECT
              public:
                enum InitFlags {
                  RedirectStdOut = 1,   //!<< sets if the std out/err is redirected to pythonStdOut() and pythonStdErr() signals
                  IgnoreSiteModule = 2, //!<< sets if Python should ignore the site module
                  ExternalHelp = 4      //!<< sets if help() calls on PythonQt modules are forwarded to the pythonHelpRequest() signal
                };
                //! initialize the python qt binding (flags are a or combination of InitFlags)
                static void init(int flags = IgnoreSiteModule | RedirectStdOut);
                //! cleanup
                static void cleanup();
                //! get the singleton instance
                static PythonQt* self() { return _self; }
                //-----------------------------------------------------------------------------
                // Public API:
                //! defines the object types for introspection
                enum ObjectType {
                  Class,
                  Function,
                  Variable,
                  Module,
                  Anything,
                  CallOverloads
                };
                //! overwrite the python sys path (call this directly after PythonQt::init() if you want to change the std python sys path)
                void overwriteSysPath(const QStringList& paths);
                //! prepend a path to sys.path to allow importing from it
                void addSysPath(const QString& path);
                //! sets the __path__ list of a module to the given list (important for local imports)
                void setModuleImportPath(PyObject* module, const QStringList& paths);
                //! get the __main__ module of python
                PythonQtObjectPtr getMainModule();
                //! registers a QObject derived class to PythonQt (this is implicitly called by addObject as well)
                /* Since Qt4 does not offer a way to detect if a given classname is derived from QObject and thus has a QMetaObject,
                 you MUST register all your QObject derived classes here when you want them to be detected in signal and slot calls */
                void registerClass(const QMetaObject* metaobject, const char* package = NULL, PythonQtQObjectCreatorFunctionCB* wrapperCreator = NULL, PythonQtShellSetInstanceWrapperCB* shell = NULL);
                //! add a wrapper object for the given QMetaType typeName, also does an addClassDecorators() to add constructors for variants
                //! (ownership of wrapper is passed to PythonQt)
                /*! Make sure that you have done a qRegisterMetaType first, if typeName is a user type!
                 This will add a wrapper object that is used to make calls to the given classname \c typeName.
                 All slots that take a pointer to typeName as the first argument will be callable from Python on
                 a variant object that contains such a type.
                 */
                void registerCPPClass(const char* typeName, const char* parentTypeName = NULL, const char* package = NULL, PythonQtQObjectCreatorFunctionCB* wrapperCreator = NULL, PythonQtShellSetInstanceWrapperCB* shell = NULL);
                //! as an alternative to registerClass, you can tell PythonQt the names of QObject derived classes
                //! and it will register the classes when it first sees a pointer to such a derived class
                void registerQObjectClassNames(const QStringList& names);
                //! add a parent class relation to the \c given typeName, the upcastingOffset is needed for multiple inheritance
                //! and can be calculated using PythonQtUpcastingOffset<type,parentType>(), which also verifies that
                //! type is really derived from parentType.
                //! Returns false if the typeName was not yet registered.
                bool addParentClass(const char* typeName, const char* parentTypeName, int upcastingOffset=0);
                //! add a handler for polymorphic downcasting
                void addPolymorphicHandler(const char* typeName, PythonQtPolymorphicHandlerCB* cb);
                //! parses the given file and returns the python code object, this can then be used to call evalCode()
                PythonQtObjectPtr parseFile(const QString& filename);
                //! evaluates the given code and returns the result value (use Py_Compile etc. to create pycode from string)
                //! If pycode is NULL, a python error is printed.
                QVariant evalCode(PyObject* object, PyObject* pycode);
                //! evaluates the given script code and returns the result value
                QVariant evalScript(PyObject* object, const QString& script, int start = Py_file_input);
                //! evaluates the given script code from file
                void evalFile(PyObject* object, const QString& filename);
                //! creates the new module \c name and evaluates the given file in the context of that module
                //! If the \c script is empty, the module contains no initial code. You can use evalScript/evalCode to add code
                //! to a module later on.
                //! The user needs to make sure that the \c name is unique in the python module dictionary.
                PythonQtObjectPtr createModuleFromFile(const QString& name, const QString& filename);
                //! creates the new module \c name and evaluates the given script in the context of that module.
                //! If the \c script is empty, the module contains no initial code. You can use evalScript/evalCode to add code
                //! to a module later on.
                //! The user needs to make sure that the \c name is unique in the python module dictionary.
                PythonQtObjectPtr createModuleFromScript(const QString& name, const QString& script = QString());
                //! create a uniquely named module, you can use evalFile or evalScript to populate the module with
                //! script code
                PythonQtObjectPtr createUniqueModule();
                //@{ Signal handlers
                //! add a signal handler to the given \c signal of \c obj  and connect it to a callable \c objectname in module
                bool addSignalHandler(QObject* obj, const char* signal, PyObject* module, const QString& objectname);
                //! remove a signal handler from the given \c signal of \c obj
                bool removeSignalHandler(QObject* obj, const char* signal, PyObject* module, const QString& objectname);
                //! add a signal handler to the given \c signal of \c obj  and connect it to a callable \c receiver
                bool addSignalHandler(QObject* obj, const char* signal, PyObject* receiver);
                //! remove a signal handler from the given \c signal of \c obj
                bool removeSignalHandler(QObject* obj, const char* signal, PyObject* receiver);
                //@}
                //@{ Variable access
                //! add the given \c qObject to the python \c object as a variable with \c name (it can be removed via clearVariable)
                void addObject(PyObject* object, const QString& name, QObject* qObject);
                //! add the given variable to the object
                void addVariable(PyObject* object, const QString& name, const QVariant& v);
                //! remove the given variable
                void removeVariable(PyObject* module, const QString& name);
                //! get the variable with the \c name of the \c object, returns an invalid QVariant on error
                QVariant getVariable(PyObject* object, const QString& name);
                //! read vars etc. in scope of an \c object, optional looking inside of an object \c objectname
                QStringList introspection(PyObject* object, const QString& objectname, ObjectType type);
                //! returns the found callable object or NULL
                //! @return new reference
                PythonQtObjectPtr lookupCallable(PyObject* object, const QString& name);
                //@}
                //@{ Calling of python callables
-               //! call the given python method, returns the result converted to a QVariant
-               QVariant call(PyObject* module, const QString& callable, const QVariantList& args = QVariantList());
+               //! call the given python \c callable in the scope of object, returns the result converted to a QVariant
+               QVariant call(PyObject* object, const QString& callable, const QVariantList& args = QVariantList());
+               //! call the given python object, returns the result converted to a QVariant
+               QVariant call(PyObject* callable, const QVariantList& args = QVariantList());
                //@}
                //@{ Decorations, constructors, wrappers...
                //! add an object whose slots will be used as decorator slots for
                //! other QObjects or CPP classes. The slots need to follow the
                //! convention that the first argument is a pointer to the wrapped object.
                //! (ownership is passed to PythonQt)
                /*!
                Example:
                A slot with the signature
                \code
                bool doSomething(QWidget* w, int a)
                \endcode
                will extend QWidget instances (and derived classes) with a "bool doSomething(int a)" slot
                that will be called with the concrete instance as first argument.
                So in Python you can now e.g. call
                \code
                someWidget.doSomething(12)
                \endcode
                without QWidget really having this method. This allows to easily make normal methods
                of Qt classes callable by forwarding them with such decorator slots
                or to make CPP classes (which are not derived from QObject) callable from Python.
                */
                void addInstanceDecorators(QObject* o);
                //! add an object whose slots will be used as decorator slots for
                //! class objects (ownership is passed to PythonQt)
                /*!
                The slots need to follow the following convention:
                - SomeClass* new_SomeClass(...)
                - QVariant new_SomeClass(...)
                - void delete_SomeClass(SomeClass*)
                - ... static_SomeClass_someName(...)
                This will add:
                - a constructor
                - a constructor which generates a QVariant
                - a destructor (only useful for CPP objects)
                - a static decorator slot which will be available on the MetaObject (visible in PythonQt module)
                */
                void addClassDecorators(QObject* o);
                //! this will add the object both as class and instance decorator (ownership is passed to PythonQt)
                void addDecorators(QObject* o);
                //! add the given factory to PythonQt (ownership stays with caller)
                void addWrapperFactory(PythonQtCppWrapperFactory* factory);
                //@}
                //@{ Custom importer (to replace internal import implementation of python)
                //! replace the internal import implementation and use the supplied interface to load files (both py and pyc files)
                //! (this method should be called directly after initialization of init() and before calling overwriteSysPath().
                //! On the first call to this method, it will install a generic PythonQt importer in Pythons "path_hooks".
                //! This is not reversible, so even setting setImporter(NULL) afterwards will
                //! keep the custom PythonQt importer with a QFile default import interface.
                //! Subsequent python import calls will make use of the passed importInterface
                //! which forwards all import calls to the given \c importInterface.
                //! Passing NULL will install a default QFile importer.
                //! (\c importInterface ownership stays with caller)
                void setImporter(PythonQtImportFileInterface* importInterface);
                //! this installs the default QFile importer (which effectively does a setImporter(NULL))
                //! (without calling setImporter or installDefaultImporter at least once, the default python import
                //! mechanism is in place)
                //! the default importer allows to import files from anywhere QFile can read from,
                //! including the Qt resource system using ":". Keep in mind that you need to extend
                //! "sys.path" with ":" to be able to import from the Qt resources.
                void installDefaultImporter() { setImporter(NULL); }
                //! set paths that the importer should ignore
                void setImporterIgnorePaths(const QStringList& paths);
                //! get paths that the importer should ignore
                const QStringList& getImporterIgnorePaths();
                //@}
                //! get access to internal data (should not be used on the public API, but is used by some C functions)
                static PythonQtPrivate* priv() { return _self->_p; }
                //! get access to the file importer (if set)
                static PythonQtImportFileInterface* importInterface();
                //! handle a python error, call this when a python function fails. If no error occurred, it returns false.
                //! The error is currently just output to the python stderr, future version might implement better trace printing
                bool handleError();
                //! set a callback that is called when a QObject with parent == NULL is wrapped by pythonqt
                void setQObjectWrappedCallback(PythonQtQObjectWrappedCB* cb);
                //! set a callback that is called when a QObject with parent == NULL is no longer wrapped by pythonqt
                void setQObjectNoLongerWrappedCallback(PythonQtQObjectNoLongerWrappedCB* cb);
                //! call the callback if it is set
                static void qObjectNoLongerWrappedCB(QObject* o);
              signals:
                //! emitted when python outputs something to stdout (and redirection is turned on)
                void pythonStdOut(const QString& str);
                //! emitted when python outputs something to stderr (and redirection is turned on)
                void pythonStdErr(const QString& str);
                //! emitted when help() is called on a PythonQt object and \c ExternalHelp is enabled
                void pythonHelpRequest(const QByteArray& cppClassName);
              public:
                //! called by internal help methods
                PyObject* helpCalled(PythonQtClassInfo* info);
                //! returns the found object or NULL
                //! @return new reference
                PythonQtObjectPtr lookupObject(PyObject* module, const QString& name);
              private:
                void initPythonQtModule(bool redirectStdOut);
                //! callback for stdout redirection, emits pythonStdOut signal
                static void stdOutRedirectCB(const QString& str);
                //! callback for stderr redirection, emits pythonStdErr signal
                static void stdErrRedirectCB(const QString& str);
                //! get (and create if not available) the signal receiver of that QObject, signal receiver is made child of the passed \c obj
                PythonQtSignalReceiver* getSignalReceiver(QObject* obj);
                PythonQt(int flags);
                ~PythonQt();
                static PythonQt* _self;
                static int _uniqueModuleCount;
                PythonQtPrivate* _p;
              };
              //! internal PythonQt details
              class PYTHONQT_EXPORT PythonQtPrivate : public QObject {
                Q_OBJECT
              public:
                PythonQtPrivate();
                ~PythonQtPrivate();
                enum DecoratorTypes {
                  StaticDecorator = 1,
                  ConstructorDecorator = 2,
                  DestructorDecorator = 4,
                  InstanceDecorator = 8,
                  AllDecorators = 0xffff
                };
                //! returns if the id is the id for PythonQtObjectPtr
                bool isPythonQtObjectPtrMetaId(int id) { return _PythonQtObjectPtr_metaId == id; }
                //! add the wrapper pointer (for reuse if the same obj appears while wrapper still exists)
                void addWrapperPointer(void* obj, PythonQtInstanceWrapper* wrapper);
                //! remove the wrapper ptr again
                void removeWrapperPointer(void* obj);
                //! add parent class relation
                bool addParentClass(const char* typeName, const char* parentTypeName, int upcastingOffset);
                //! add a handler for polymorphic downcasting
                void addPolymorphicHandler(const char* typeName, PythonQtPolymorphicHandlerCB* cb);
                //! lookup existing classinfo and return new if not yet present
                PythonQtClassInfo* lookupClassInfoAndCreateIfNotPresent(const char* typeName);
                //! called when a signal emitting QObject is destroyed to remove the signal handler from the hash map
                void removeSignalEmitter(QObject* obj);
                //! wrap the given QObject into a Python object (or return existing wrapper!)
                PyObject* wrapQObject(QObject* obj);
                //! wrap the given ptr into a Python object (or return existing wrapper!) if there is a known QObject of that name or a known wrapper in the factory
                PyObject* wrapPtr(void* ptr, const QByteArray& name);
                //! registers a QObject derived class to PythonQt (this is implicitly called by addObject as well)
                /* Since Qt4 does not offer a way to detect if a given classname is derived from QObject and thus has a QMetaObject,
                   you MUST register all your QObject derived classes here when you want them to be detected in signal and slot calls */
                void registerClass(const QMetaObject* metaobject, const char* package = NULL, PythonQtQObjectCreatorFunctionCB* wrapperCreator = NULL, PythonQtShellSetInstanceWrapperCB* shell = NULL);
                //! add a wrapper object for the given QMetaType typeName, also does an addClassDecorators() to add constructors for variants
                //! (ownership of wrapper is passed to PythonQt)
                /*! Make sure that you have done a qRegisterMetaType first, if typeName is a user type!
                 This will add a wrapper object that is used to make calls to the given classname \c typeName.
                 All slots that take a pointer to typeName as the first argument will be callable from Python on
                 a variant object that contains such a type.
                 */
                void registerCPPClass(const char* typeName, const char* parentTypeName = NULL, const char* package = NULL, PythonQtQObjectCreatorFunctionCB* wrapperCreator = NULL, PythonQtShellSetInstanceWrapperCB* shell = NULL);
                //! as an alternative to registerClass, you can tell PythonQt the names of QObject derived classes
                //! and it will register the classes when it first sees a pointer to such a derived class
                void registerQObjectClassNames(const QStringList& names);
                //! add a decorator object
                void addDecorators(QObject* o, int decoTypes);
                //! check if the enum is either part of the \c meta class or contains a scope and is
                //! an enum of another known metaobject (and as last resort, of the Qt namespace)
                bool isEnumType(const QMetaObject* meta, const QByteArray& name);
                //! helper method that creates a PythonQtClassWrapper object
                PythonQtClassWrapper* createNewPythonQtClassWrapper(PythonQtClassInfo* info, const char* package = NULL);
                //! helper method that creates a PythonQtInstanceWrapper object and registers it in the object map
                PythonQtInstanceWrapper* createNewPythonQtInstanceWrapper(QObject* obj, PythonQtClassInfo* info, void* wrappedPtr = NULL);
                //! get the class info for a meta object (if available)
                PythonQtClassInfo* getClassInfo(const QMetaObject* meta) { return _knownClassInfos.value(meta->className()); }
                //! get the class info for a meta object (if available)
                PythonQtClassInfo* getClassInfo(const QByteArray& className) { return _knownClassInfos.value(className); }
                //! creates the new module from the given pycode
                PythonQtObjectPtr createModule(const QString& name, PyObject* pycode);
                //! get the current class info (for the next PythonQtClassWrapper that is created) and reset it to NULL again
                PythonQtClassInfo* currentClassInfoForClassWrapperCreation();
                //! the dummy tuple (which is empty and may be used to detected that a wrapper is called from internal wrapper creation
                static PyObject* dummyTuple();
              private:
                //! create a new pythonqt class wrapper and place it in the pythonqt module
                void createPythonQtClassWrapper(PythonQtClassInfo* info, const char* package);
                //! get/create new package module (the returned object is a borrowed reference)
                PyObject* packageByName(const char* name);
                //! get the wrapper for a given pointer (and remove a wrapper of an already destroyed qobject)
                PythonQtInstanceWrapper* findWrapperAndRemoveUnused(void* obj);
                //! stores pointer to PyObject mapping of wrapped QObjects AND C++ objects
                QHash<void* , PythonQtInstanceWrapper *> _wrappedObjects;
                //! stores the meta info of known Qt classes
                QHash<QByteArray, PythonQtClassInfo *>   _knownClassInfos;
                //! names of qobject derived classes that can be casted to qobject savely
                QHash<QByteArray, bool> _knownQObjectClassNames;
                //! stores signal receivers for QObjects
                QHash<QObject* , PythonQtSignalReceiver *> _signalReceivers;
                //! the PythonQt python module
                PythonQtObjectPtr _pythonQtModule;
                //! the importer interface (if set)
                PythonQtImportFileInterface* _importInterface;
                //! the default importer
                PythonQtQFileImporter* _defaultImporter;
                PythonQtQObjectNoLongerWrappedCB* _noLongerWrappedCB;
                PythonQtQObjectWrappedCB* _wrappedCB;
                QStringList _importIgnorePaths;
                //! the cpp object wrapper factories
                QList<PythonQtCppWrapperFactory*> _cppWrapperFactories;
                QHash<QByteArray, PyObject*> _packages;
                PythonQtClassInfo* _currentClassInfoForClassWrapperCreation;
                int _initFlags;
                int _PythonQtObjectPtr_metaId;
                friend class PythonQt;
              };
              #endif

src/PythonQtConversion.cpp +3 -1

              /*
              *
              *  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 <QDateTime>
              #include <QTime>
              #include <QDate>
              PythonQtValueStorage<qint64, 128>  PythonQtConv::global_valueStorage;
              PythonQtValueStorage<void*, 128>   PythonQtConv::global_ptrStorage;
              PythonQtValueStorage<QVariant, 32> PythonQtConv::global_variantStorage;
              QHash<int, PythonQtConvertMetaTypeToPythonCB*> PythonQtConv::_metaTypeToPythonConverters;
              QHash<int, PythonQtConvertPythonToMetaTypeCB*> PythonQtConv::_pythonToMetaTypeConverters;
              PyObject* PythonQtConv::GetPyBool(bool val)
              {
                PyObject* r = val?Py_True:Py_False;
                Py_INCREF(r);
                return r;
              }
              PyObject* PythonQtConv::ConvertQtValueToPython(const PythonQtMethodInfo::ParameterInfo& info, const void* data) {
                if (info.typeId == QMetaType::Void) {
                  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 if ((info.typeId == PythonQtMethodInfo::Unknown || info.typeId >= QMetaType::User) &&
                           info.name.startsWith("QList<")) {
                  // it is a QList template:
                  // (TODO: check what happens if this is a pointer type?!)
                  QByteArray innerType = info.name.mid(6,info.name.length()-7);
                  if (innerType.endsWith("*")) {
                    innerType.truncate(innerType.length()-1);
                    return ConvertQListOfPointerTypeToPythonList((QList<void*>*)data, innerType);
                  }
                }
                if (info.typeId >= QMetaType::User) {
                  // if a converter is registered, we use is:
                  PythonQtConvertMetaTypeToPythonCB* converter = _metaTypeToPythonConverters.value(info.typeId);
                  if (converter) {
                    return (*converter)(data, info.typeId);
                  }
                }
                // special handling did not match, so we convert the usual way (either pointer or value version):
                if (info.isPointer) {
                  // convert the pointer to a Python Object (we can handle ANY C++ object, in the worst case we just know the type and the pointer)
                  return PythonQt::priv()->wrapPtr(*((void**)data), info.name);
                } else {
                  // handle values that are not yet handled and not pointers
                  return ConvertQtValueToPythonInternal(info.typeId, data);
                }
              }
              PyObject* PythonQtConv::ConvertQtValueToPythonInternal(int type, const 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));
                default:
                  if (PythonQt::priv()->isPythonQtObjectPtrMetaId(type)) {
                    // special case, it is a PythonQtObjectPtr which contains a PyObject, take it directly:
                    PyObject* o = ((PythonQtObjectPtr*)data)->object();
                    Py_INCREF(o);
                    return o;
                  } else {
                    if (type > 0) {
                      // if the type is known, we can construct it via QMetaType::construct
                      void* newCPPObject = QMetaType::construct(type, data);
                      // XXX this could be optimized by using metatypeid directly
                      PythonQtInstanceWrapper* wrap = (PythonQtInstanceWrapper*)PythonQt::priv()->wrapPtr(newCPPObject, QMetaType::typeName(type));
                      wrap->_ownedByPythonQt = true;
                      wrap->_useQMetaTypeDestroy = true;
                      return (PyObject*)wrap;
                    }
                    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:
                     if (info.typeId == PythonQtMethodInfo::Unknown) {
                       // check if we have a QList of pointers, which we can circumvent with a QList<void*>
                       if (info.name.startsWith("QList<")) {
                         QByteArray innerType = info.name.mid(6,info.name.length()-7);
                         if (innerType.endsWith("*")) {
                           static int id = QMetaType::type("QList<void*>");
                           PythonQtValueStorage_ADD_VALUE(global_variantStorage, QVariant, QVariant::Type(id), ptr);
                           // return the constData pointer that will be filled with the result value later on
                           ptr = (void*)((QVariant*)ptr)->constData();
                         }
                       }
                     }
                     if (!ptr) {
                       // 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::castWrapperTo(PythonQtInstanceWrapper* wrapper, const QByteArray& className, bool& ok)
               {
                 void* object;
                 if (wrapper->classInfo()->isCPPWrapper()) {
                   object = wrapper->_wrappedPtr;
                 } else {
                   QObject* tmp = wrapper->_obj;
                   object = tmp;
                 }
                 if (object) {
                   // if we can be upcasted to the given name, we pass the casted pointer in:
                   object = wrapper->classInfo()->castTo(object, className);
                   ok = object!=NULL;
                 } else {
                   // if it is a NULL ptr, we need to check if it inherits, so that we might pass the NULL ptr
                   ok = wrapper->classInfo()->inherits(className);
                 }
                 return object;
               }
               void* PythonQtConv::ConvertPythonToQt(const PythonQtMethodInfo::ParameterInfo& info, PyObject* obj, bool strict, const QMetaObject* meta, void* alreadyAllocatedCPPObject)
               {
                 bool ok;
                 void* ptr = NULL;
                 if (PyObject_TypeCheck(obj, &PythonQtInstanceWrapper_Type) && info.typeId != PythonQtMethodInfo::Variant) {
                   // if we have a Qt wrapper object and if we do not need a QVariant, we do the following:
                   // (the Variant case is handled below in a switch)
                   // a C++ wrapper (can be passed as pointer or reference)
                   PythonQtInstanceWrapper* wrap = (PythonQtInstanceWrapper*)obj;
                   bool ok;
                   void* object = castWrapperTo(wrap, info.name, ok);
                   if (ok) {
                     if (info.isPointer) {
                       // store the wrapped pointer in an extra pointer and let ptr point to the extra pointer
                       PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_ptrStorage, void*, object, ptr);
                     } else {
                       // store the wrapped pointer directly, since we are a reference
                       ptr = object;
                     }
                   } else {
                    // not matching
                   }
                 } else if (info.isPointer) {
                   // a pointer
                   if (info.typeId == QMetaType::Char || info.typeId == QMetaType::UChar)
                   {
                     QString str = PyObjGetString(obj, strict, ok);
                     if (ok) {
                       void* ptr2 = NULL;
                       PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_variantStorage, QVariant, QVariant(str.toUtf8()), ptr2);
                       PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_ptrStorage, void*, (((QByteArray*)((QVariant*)ptr2)->constData())->data()), ptr);
                     }
                   } else if (info.name == "PyObject") {
                     // handle low level PyObject directly
                     PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_ptrStorage, void*, obj, ptr);
                   } else if (obj == Py_None) {
                     // None is treated as a NULL ptr
                     PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,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_IF_NEEDED(alreadyAllocatedCPPObject,global_ptrStorage, void*, NULL, ptr);
                       }
                     }
                   }
                 } else {
                   // not a pointer
                   switch (info.typeId) {
                   case QMetaType::Char:
                     {
                       int val = PyObjGetInt(obj, strict, ok);
                       if (ok) {
                         PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_valueStorage, char, val, ptr);
                       }
                     }
                     break;
                   case QMetaType::UChar:
                     {
                       int val = PyObjGetInt(obj, strict, ok);
                       if (ok) {
                         PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_valueStorage, unsigned char, val, ptr);
                       }
                     }
                     break;
                   case QMetaType::Short:
                     {
                       int val = PyObjGetInt(obj, strict, ok);
                       if (ok) {
                         PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_valueStorage, short, val, ptr);
                       }
                     }
                     break;
                   case QMetaType::UShort:
                     {
                       int val = PyObjGetInt(obj, strict, ok);
                       if (ok) {
                         PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_valueStorage, unsigned short, val, ptr);
                       }
                     }
                     break;
                   case QMetaType::Long:
                     {
                       long val = (long)PyObjGetLongLong(obj, strict, ok);
                       if (ok) {
                         PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_valueStorage, long, val, ptr);
                       }
                     }
                     break;
                   case QMetaType::ULong:
                     {
                       unsigned long val = (unsigned long)PyObjGetLongLong(obj, strict, ok);
                       if (ok) {
                         PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_valueStorage, unsigned long, val, ptr);
                       }
                     }
                     break;
                   case QMetaType::Bool:
                     {
                       bool val = PyObjGetBool(obj, strict, ok);
                       if (ok) {
                         PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_valueStorage, bool, val, ptr);
                       }
                     }
                     break;
                   case QMetaType::Int:
                     {
                       int val = PyObjGetInt(obj, strict, ok);
                       if (ok) {
                         PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_valueStorage, int, val, ptr);
                       }
                     }
                     break;
                   case QMetaType::UInt:
                     {
                       unsigned int val = (unsigned int)PyObjGetLongLong(obj, strict, ok);
                       if (ok) {
                         PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_valueStorage, unsigned int, val, ptr);
                       }
                     }
                     break;
                   case QMetaType::QChar:
                     {
                       int val = PyObjGetInt(obj, strict, ok);
                       if (ok) {
                         PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_valueStorage, short, val, ptr);
                       }
                     }
                     break;
                   case QMetaType::Float:
                     {
                       float val = (float)PyObjGetDouble(obj, strict, ok);
                       if (ok) {
                         PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_valueStorage, float, val, ptr);
                       }
                     }
                     break;
                   case QMetaType::Double:
                     {
                       double val = (double)PyObjGetDouble(obj, strict, ok);
                       if (ok) {
                         PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_valueStorage, double, val, ptr);
                       }
                     }
                     break;
                   case QMetaType::LongLong:
                     {
                       qint64 val = PyObjGetLongLong(obj, strict, ok);
                       if (ok) {
                         PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_valueStorage, qint64, val, ptr);
                       }
                     }
                     break;
                   case QMetaType::ULongLong:
                     {
                       quint64 val = PyObjGetULongLong(obj, strict, ok);
                       if (ok) {
                         PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_valueStorage, quint64, val, ptr);
                       }
                     }
                     break;
                   case QMetaType::QByteArray:
                     {
                       QByteArray bytes = PyObjGetBytes(obj, strict, ok);
                       if (ok) {
                         PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,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_IF_NEEDED(alreadyAllocatedCPPObject,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_IF_NEEDED(alreadyAllocatedCPPObject,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_IF_NEEDED(alreadyAllocatedCPPObject,global_variantStorage, QVariant, v, ptr);
                       }
                     }
                     break;
                     default:
                     {
                       if (info.typeId == PythonQtMethodInfo::Unknown) {
                         // check for enum case
                         if (meta && PythonQt::priv()->isEnumType(meta, info.name)) {
                           unsigned int val = (unsigned int)PyObjGetLongLong(obj, strict, ok);
                           if (ok) {
                             PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_valueStorage, unsigned int, val, ptr);
                             return ptr;
                           } else {
                             return NULL;
                           }
                         }
                       }
                       if (info.typeId == PythonQtMethodInfo::Unknown || info.typeId >= QMetaType::User) {
                         // check for QList<AnyPtr*> case, where we will use a QList<void*> QVariant
                         if (info.name.startsWith("QList<")) {
                           QByteArray innerType = info.name.mid(6,info.name.length()-7);
                           if (innerType.endsWith("*")) {
                             innerType.truncate(innerType.length()-1);
                             static int id = QMetaType::type("QList<void*>");
                             if (!alreadyAllocatedCPPObject) {
                               PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_variantStorage, QVariant, QVariant::Type(id), ptr);
                               ptr = (void*)((QVariant*)ptr)->constData();
                             } else {
                               ptr = alreadyAllocatedCPPObject;
                             }
                             ok = ConvertPythonListToQListOfPointerType(obj, (QList<void*>*)ptr, innerType, strict);
                             if (ok) {
                               return ptr;
                             } else {
                               return NULL;
                             }
                           }
                         }
                       }
                       // We only do this for registered type > QMetaType::User for performance reasons.
                       if (info.typeId >= QMetaType::User) {
                         // Maybe we have a special converter that is registered for that type:
                         PythonQtConvertPythonToMetaTypeCB* converter = _pythonToMetaTypeConverters.value(info.typeId);
                         if (converter) {
                           if (!alreadyAllocatedCPPObject) {
                             // create a new empty variant of concrete type:
                             PythonQtValueStorage_ADD_VALUE_IF_NEEDED(alreadyAllocatedCPPObject,global_variantStorage, QVariant, QVariant::Type(info.typeId), ptr);
                             ptr = (void*)((QVariant*)ptr)->constData();
                           } else {
                             ptr = alreadyAllocatedCPPObject;
                           }
                           // now call the converter, passing the internal object of the variant
                           ok = (*converter)(obj, ptr, info.typeId, strict);
                           if (ok) {
                             return ptr;
                           } else {
                             return NULL;
                           }
                         }
                       }
                       // 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_IF_NEEDED(alreadyAllocatedCPPObject,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 (PyObject_TypeCheck(val, &PythonQtInstanceWrapper_Type)) {
                    PythonQtInstanceWrapper* wrap = (PythonQtInstanceWrapper*)val;
                    // c++ wrapper, check if the class names of the c++ objects match
                    if (wrap->classInfo()->isCPPWrapper()) {
                      if (wrap->classInfo()->metaTypeId()>0) {
-                       // construct a new variant from the C++ object if it has a meta type
+                       // construct a new variant from the C++ object if it has a meta type (this will COPY the object!)
                        v = QVariant(wrap->classInfo()->metaTypeId(), wrap->_wrappedPtr);
                      } else {
+                       // TODOXXX we could as well check if there is a registered meta type for "classname*", so that we may pass
+                       // the pointer here...
                        // is this worth anything? we loose the knowledge of the cpp object type
                        v = qVariantFromValue(wrap->_wrappedPtr);
                      }
                    } else {
                      // this gives us a QObject pointer
                      QObject* myObject = wrap->_obj;
                      v = qVariantFromValue(myObject);
                    }
                    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 {
                    // 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 (PyObject_TypeCheck(val, &PythonQtInstanceWrapper_Type)) {
                    PythonQtInstanceWrapper* wrap = (PythonQtInstanceWrapper*)val;
                    if (wrap->classInfo()->isCPPWrapper() && wrap->classInfo()->metaTypeId() == type) {
                      // construct a new variant from the C++ object if it has the same meta type
                      v = QVariant(type, wrap->_wrappedPtr);
                    } else {
                      v = QVariant();
                    }
                  } 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;
              }
              PyObject* PythonQtConv::ConvertQListOfPointerTypeToPythonList(QList<void*>* list, const QByteArray& typeName)
              {
                PyObject* result = PyTuple_New(list->count());
                int i = 0;
                foreach (void* value, *list) {
                  PyTuple_SET_ITEM(result, i, PythonQt::priv()->wrapPtr(value, typeName));
                  i++;
                }
                return result;
              }
              bool PythonQtConv::ConvertPythonListToQListOfPointerType(PyObject* obj, QList<void*>* list, const QByteArray& type, bool /*strict*/)
              {
                bool result = false;
                if (PySequence_Check(obj)) {
                  result = true;
                  int count = PySequence_Size(obj);
                  PyObject* value;
                  for (int i = 0;i<count;i++) {
                    value = PySequence_GetItem(obj,i);
                    if (PyObject_TypeCheck(value, &PythonQtInstanceWrapper_Type)) {
                      PythonQtInstanceWrapper* wrap = (PythonQtInstanceWrapper*)value;
                      bool ok;
                      void* object = castWrapperTo(wrap, type, ok);
                      if (ok) {
                        list->append(object);
                      } else {
                        result = false;
                        break;
                      }
                    }
                  }
                }
                return result;
              }
              int PythonQtConv::getInnerTemplateMetaType(const QByteArray& typeName)
              {
                int idx = typeName.indexOf("<");
                if (idx>0) {
                  int idx2 = typeName.indexOf(">");
                  if (idx2>0) {
                    QByteArray innerType = typeName.mid(idx+1,idx2-idx-1);
                    return QMetaType::type(innerType.constData());
                  }
                }
                return QMetaType::Void;
              }
              QString PythonQtConv::qVariantToString(const QVariant& v) {
                return CPPObjectToString(v.userType(), v.constData());
              }
              QString PythonQtConv::CPPObjectToString(int type, const void* data) {
                QString r;
                switch (type) {
                  case QVariant::Size: {
                    const QSize* s = static_cast<const QSize*>(data);
                    r = QString::number(s->width()) + ", " + QString::number(s->height());
                    }
                    break;
                  case QVariant::SizeF: {
                    const QSizeF* s = static_cast<const QSizeF*>(data);
                    r = QString::number(s->width()) + ", " + QString::number(s->height());
                    }
                    break;
                  case QVariant::Point: {
                    const QPoint* s = static_cast<const QPoint*>(data);
                    r = QString::number(s->x()) + ", " + QString::number(s->y());
                    }
                    break;
                  case QVariant::PointF: {
                    const QPointF* s = static_cast<const QPointF*>(data);
                    r = QString::number(s->x()) + ", " + QString::number(s->y());
                    }
                    break;
                  case QVariant::Rect: {
                    const QRect* s = static_cast<const QRect*>(data);
                    r = QString::number(s->x()) + ", " + QString::number(s->y());
                    r += ", " + QString::number(s->width()) + ", " + QString::number(s->height());
                    }
                    break;
                  case QVariant::RectF: {
                    const QRectF* s = static_cast<const QRectF*>(data);
                    r = QString::number(s->x()) + ", " + QString::number(s->y());
                    r += ", " + QString::number(s->width()) + ", " + QString::number(s->height());
                    }
                    break;
                  case QVariant::Date: {
                    const QDate* s = static_cast<const QDate*>(data);
                    r = s->toString(Qt::ISODate);
                    }
                    break;
                  case QVariant::DateTime: {
                    const QDateTime* s = static_cast<const QDateTime*>(data);
                    r = s->toString(Qt::ISODate);
                    }
                    break;
                  case QVariant::Time: {
                    const QTime* s = static_cast<const QTime*>(data);
                    r = s->toString(Qt::ISODate);
                  }
                    break;
                  case QVariant::Pixmap:
                  {
                    const QPixmap* s = static_cast<const QPixmap*>(data);
                    r = QString("Pixmap ") + QString::number(s->width()) + ", " + QString::number(s->height());
                  }
                    break;
                  case QVariant::Image:
                  {
                    const QImage* s = static_cast<const QImage*>(data);
                    r = QString("Image ") + QString::number(s->width()) + ", " + QString::number(s->height());
                  }
                    break;
                  case QVariant::Url:
                    {
                      const QUrl* s = static_cast<const QUrl*>(data);
                      r = s->toString();
                    }
                    break;
                    //TODO: add more printing for other variant types
                  default:
                    // this creates a copy, but that should not be expensive for typical simple variants
                    // (but we do not want to do this for our won user types!
                    if (type>0 && type < (int)QVariant::UserType) {
                      QVariant v(type, data);
                      r = v.toString();
                    }
                }
                return r;
              }

src/PythonQtDoc.h +1 0

              #ifndef _PYTHONQTDOC_H
              #define _PYTHONQTDOC_H
              /*
               *
               *  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    PythonQtDoc.h
              // \author  Florian Link
              // \author  Last changed by $Author: florian $
              // \date    2006-10
              */
              //----------------------------------------------------------------------------------
              /*!
                \if USE_GLOBAL_DOXYGEN_DOC
                \page PythonQtPage PythonQt Overview
                \else
                \mainpage PythonQt Overview
                \endif
               \section Introduction
               \b PythonQt is a dynamic Python (http://www.python.org) binding for Qt (http://www.qtsoftware.com).
               It offers an easy way to embed the Python scripting language into
               your Qt applications. It makes heavy use of the QMetaObject system and thus requires Qt4.x.
               The focus of PythonQt is on embedding Python into an existing C++ application, not on writing the whole
               application completely in Python. If you want to write your whole application in Python,
               you should use <a href="http://www.riverbankcomputing.co.uk/pyqt/">PyQt</a> instead.
               If you are looking for a simple way to embed Python objects into your C++/Qt Application
               and to script parts of your application via Python, PythonQt is the way to go!
               PythonQt is a stable library that was developed to make the
               Image Processing and Visualization platform MeVisLab (http://www.mevislab.de)
               scriptable from Python.
               \section Download
               PythonQt is hosted on SourceForge at http://sourceforge.net/projects/pythonqt , you can access it via SVN
               or download a tarball.
               \section Licensing
               PythonQt is distributed under the LGPL license, so it pairs well with the LGPL of the Qt 4.5 release and allows
               to be used in commercial applications when following the LGPL 2.1 obligations.
               \section LicensingWrapper Licensing of Wrapper Generator
               The build system of PythonQt makes use of a modified version of the GPL'ed QtScript generator,
               located in the "generator" directory.
               See http://labs.trolltech.com/page/Projects/QtScript/Generator for details on the original project.
               Thanks a lot to the QtJambi guys and the QtScript Generator project for the C++ parser and
               Qt typesystem files!
               The PythonQt wrappers generated by the generator located in the "generated_cpp" directory are distributed under the LGPL,
               they are not restriced by the GPL.
               The generated wrappers are pre-generated and checked-in for Qt 4.4.3, so you only need to build and run the
               generator when you want to build additional wrappers or you want to upgrade/downgrade to an newer Qt version.
               You may use the generator to generate C++ bindings for your own C++ classes (e.g. to make them deriveable in Python),
               , but this is currently not documented and involves creating your own typesystem files.
               \section Features
               The following are the built-in features of the PythonQt library:
               - Access all \b slots, \b properties, children and registered enums of any QObject derived class from Python
               - Connecting Qt Signals to Python functions (both from within Python and from C++)
               - Easy wrapping of Python objects from C++ with smart, reference-counting PythonQtObjectPtr.
               - Convenient conversions to/from QVariant for PythonQtObjectPtr.
               - Wrapping of C++ objects (which are not derived from QObject) via PythonQtCppWrapperFactory
               - Extending C++ and QObject derived classes with additional slots, static methods and constructors (see Decorators)
               - StdOut/Err redirection to Qt signals instead of cout
               - Interface for creating your own \c import replacement, so that Python scripts can be e.g. signed/verified before they are executed (PythonQtImportFileInterface)
               - Mapping of plain-old-datatypes and ALL QVariant types to and from Python
               - Support for wrapping of user QVariant types which are registerd via QMetaType
               - Support for Qt namespace (with all enumerators)
               - All PythonQt wrapped objects support the dir() statement, so that you can see easily which attributes a QObject, CPP object or QVariant has
               - No preprocessing/wrapping tool needs to be started, PythonQt can script any QObject without prior knowledge about it (except for the MetaObject information from the \b moc)
               - Multiple inheritance for C++ objects (e.g. a QWidget is derived from QObject and QPaintDevice, PythonQt will automatically cast a QWidget to a QPaintDevice when needed)
               - Polymorphic downcasting (if e.g. PythonQt sees a QEvent, it can downcast it depending on the type(), so the Python e.g. sees a QPaintEvent instead of a plain QEvent)
               - Deriving C++ objects from Python and overwriting virtual method with a Python implementation (requires usage of wrapper generator or manual work!)
               - Extensible handler for Python/C++ conversion of complex types, e.g. mapping of QVector<SomeObject> to/from a Python array
               \section FeaturesQtAll Features (with PythonQt_QtAll linked in)
               Thanks to the new wrapper generator, PythonQt now offers the additional PythonQt_QtAll library which wraps the complete Qt API, including all C++ classes and all non-slots on QObject derived classes.
               This offers the following features:
               - Complete Qt API wrapped and accessible
               - The following modules are available as submodule of the PythonQt module:
                - QtCore
                - QtGui
                - QtNetwork
                - QtOpenGL
                - QtSql
                - QtSvg
                - QtUiTools
                - QtWebKit
                - QtXml
                - QtXmlPatterns
                - (phonon, QtHelp, assistant, designer are currently not supported, this would require some additional effort on the code generator)
               - For convenience, all classes are also available in the PythonQt.Qt module, for people who do not care in which module a class is located
               - Any Qt class that has virtual methods can be easily derived from Python and the virtual methods can be reimplemented in Python
               - Polymorphic downcasting on QEvent, QGraphicsItem, QStyleOption, ...
               - Multiple inheritance support (e.g. QGraphicsTextItem is a QObject AND a QGraphicsItem, PythonQt will handle this well)
               \section Comparision Comparision with PyQt
               - PythonQt is not as Pythonic as PyQt in many details (e.g. operator mapping, pickling, translation support, ...) and it is maily thought for embedding and intercommunication between Qt/Cpp and Python
               - PythonQt allows to communicate in both directions, e.g. calling a Python object from C++ AND calling a C++ method from Python, while PyQt only handles the Python->C++ direction
               - PythonQt offers properties as Python attributes, while PyQt offers them as setter/getter methods (e.g. QWidget.width is a property in PythonQt and a method in PyQt)
               - PythonQt does not auto-convert objects, e.g. when a QPainter expects a QBrush and you pass a QColor, it is rejected, you will need to write QBrush(QColor(1,2,3)) instead
+              - PythonQt returns/handles enums/flags as integers, which can cause problems on overloads that take ints and enums, a future version might use an own enum type (like PyQt does)
               - Probably there are lots of details that differ, I do not know PyQt that well to list them all.
               \section Interface
               The main interface to PythonQt is the PythonQt singleton.
               PythonQt needs to be initialized via PythonQt::init() once.
               Afterwards you communicate with the singleton via PythonQt::self().
               PythonQt offers a complete Qt binding, which
               needs to be enabled via PythonQt_QtAll::init().
               \section Datatype Datatype Mapping
                The following table shows the mapping between Python and Qt objects:
                <table>
                <tr><th>Qt/C++</th><th>Python</th></tr>
                <tr><td>bool</td><td>bool</td></tr>
                <tr><td>double</td><td>float</td></tr>
                <tr><td>float</td><td>float</td></tr>
                <tr><td>char/uchar,int/uint,short,ushort,QChar</td><td>integer</td></tr>
                <tr><td>long</td><td>integer</td></tr>
                <tr><td>ulong,longlong,ulonglong</td><td>long</td></tr>
                <tr><td>QString</td><td>unicode string</td></tr>
                <tr><td>QByteArray</td><td>str</td></tr>
                <tr><td>char*</td><td>str</td></tr>
                <tr><td>QStringList</td><td>tuple of unicode strings</td></tr>
                <tr><td>QVariantList</td><td>tuple of objects</td></tr>
                <tr><td>QVariantMap</td><td>dict of objects</td></tr>
                <tr><td>QVariant</td><td>depends on type, see below</td></tr>
                <tr><td>QSize, QRect and all other standard Qt QVariants</td><td>variant wrapper that supports complete API of the respective Qt classes</td></tr>
                <tr><td>OwnRegisteredMetaType</td><td>C++ wrapper, optionally with additional information/wrapping provided by registerCPPClass()</td></tr>
                <tr><td>QList<AnyObject*></td><td>converts to a list of CPP wrappers</td></tr>
                <tr><td>EnumType</td><td>integer (all enums that are known via the moc and the Qt namespace are supported)</td></tr>
                <tr><td>QObject (and derived classes)</td><td>QObject wrapper</td></tr>
                <tr><td>C++ object</td><td>CPP wrapper, either wrapped via PythonQtCppWrapperFactory or just decorated with decorators</td></tr>
                <tr><td>PyObject</td><td>PyObject</td></tr>
                </table>
                PyObject is passed as simple pointer, which allows to pass/return any Python Object directly to/from
                a Qt slot.
                QVariants are mapped recursively as given above, e.g. a dictionary can
                contain lists of dictionaries of doubles.
                For example a QVariant of type "String" is mapped to a python unicode string.
                All Qt QVariant types are implemented, PythonQt supports the complete Qt API for these object.
               \section QObject QObject Wrapping
               All classes derived from QObject are automatically wrapped with a python wrapper class
               when they become visible to the Python interpreter. This can happen via
               - the PythonQt::addObject() method
               - when a Qt \b slot returns a QObject derived object to python
               - when a Qt \b signal contains a QObject and is connected to a python function
               It is important that you call PythonQt::registerClass() for any QObject derived class
               that may become visible to Python, except when you add it via PythonQt::addObject().
               This will register the complete parent hierachy of the registered class, so that
               when you register e.g. a QPushButton, QWidget will be registered as well (and all intermediate
               parents).
               From Python, you can talk to the returned QObjects in a natural way by calling
               their slots and receiving the return values. You can also read/write all
               properties of the objects as if they where normal python properties.
               In addition to this, the wrapped objects support
               - className() - returns a string that reprents the classname of the QObject
               - help() - shows all properties, slots, enums, decorator slots and constructors of the object, in a printable form
               - delete() - deletes the object (use with care, especially if you passed the ownership to C++)
               - connect(signal, function) - connect the signal of the given object to a python function
               - connect(signal, qobject, slot) - connect the signal of the given object to a slot of another QObject
               - disconnect(signal, function) - disconnect the signal of the given object from a python function
               - disconnect(signal, qobject, slot) - disconnect the signal of the given object from a slot of another QObject
               - children() - returns the children of the object
               - setParent(QObject) - set the parent
               - QObject* parent() - get the parent
               The below example shows how to connect signals in Python:
               \code
               # define a signal handler function
               def someFunction(flag):
                 print flag
               # button1 is a QPushButton that has been added to Python via addObject()
               # connect the clicked signal to a python function:
               button1.connect("clicked(bool)", someFunction)
               \endcode
              \section CPP CPP Wrapping
              You can create dedicated wrapper QObjects for any C++ class. This is done by deriving from PythonQtCppWrapperFactory
              and adding your factory via addWrapperFactory().
              Whenever PythonQt encounters a CPP pointer (e.g. on a slot or signal)
              and it does not known it as a QObject derived class, it will create a generic CPP wrapper. So even unknown C++ objects
              can be passed through Python. If the wrapper factory supports the CPP class, a QObject wrapper will be created for each
              instance that enters Python. An alternative to a complete wrapper via the wrapper factory are decorators, see \ref Decorators
              \section MetaObject Meta Object/Class access
              For each known C++ class, PythonQt provides a Python class. These classes are visible
              inside of the "PythonQt" python module or in subpackages if a package is given when the class is registered.
              A Meta class supports:
              - access to all declared enum values
              - constructors
              - static methods
              - unbound non-static methods
              - help() and className()
              From within Python, you can import the module "PythonQt" to access these classes and the Qt namespace.
              \code
              from PythonQt import QtCore
              # namespace access:
              print QtCore.Qt.AlignLeft
              # constructors
              a = QtCore.QSize(12,13)
              b = QtCore.QFont()
              # static method
              QtCore.QDate.currentDate()
              # enum value
              QtCore.QFont.UltraCondensed
              \endcode
              \section Decorators Decorator slots
              PythonQt introduces a new generic approach to extend any wrapped QObject or CPP object with
              - constructors
              - destructors (for CPP objects)
              - additional slots
              - static slots (callable on both the Meta object and the instances)
              The idea behind decorators is that we wanted to make it as easy as possible to extend
              wrapped objects. Since we already have an implementation for invoking any Qt Slot from
              Python, it looked promising to use this approach for the extension of wrapped objects as well.
              This avoids that the PythonQt user needs to care about how Python arguments are mapped from/to
              Qt when he wants to create static methods, constructors and additional member functions.
              The basic idea about decorators is to create a QObject derived class that implements slots
              which take one of the above roles (e.g. constructor, destructor etc.) via a naming convention.
              These slots are then assigned to other classes via the naming convention.
              - SomeClassName* new_SomeClassName(...) - defines a constructor for "SomeClassName" that returns a new object of type SomeClassName (where SomeClassName can be any CPP class, not just QObject classes)
              - void delete_SomeClassName(SomeClassName* o) - defines a destructor, which should delete the passed in object o
              - anything static_SomeClassName_someMethodName(...) - defines a static method that is callable on instances and the meta class
              - anything someMethodName(SomeClassName* o, ...) - defines a slot that will be available on SomeClassName instances (and derived instances). When such a slot is called the first argument is the pointer to the instance and the rest of the arguments can be used to make a call on the instance.
              The below example shows all kinds of decorators in action:
              \code
              // an example CPP object
              class YourCPPObject {
              public:
                YourCPPObject(int arg1, float arg2) { a = arg1; b = arg2; }
                float doSomething(int arg1) { return arg1*a*b; };
                private:
                int a;
                float b;
              };
              // an example decorator
              class ExampleDecorator : public QObject
              {
                Q_OBJECT
              public slots:
                // add a constructor to QSize that takes a QPoint
                QSize* new_QSize(const QPoint& p) { return new QSize(p.x(), p.y()); }
                // add a constructor for QPushButton that takes a text and a parent widget
                QPushButton* new_QPushButton(const QString& text, QWidget* parent=NULL) { return new QPushButton(text, parent); }
                // add a constructor for a CPP object
                YourCPPObject* new_YourCPPObject(int arg1, float arg2) { return new YourCPPObject(arg1, arg2); }
                // add a destructor for a CPP object
                void delete_YourCPPObject(YourCPPObject* obj) { delete obj; }
                // add a static method to QWidget
                QWidget* static_QWidget_mouseGrabber() { return QWidget::mouseGrabber(); }
                // add an additional slot to QWidget (make move() callable, which is not declared as a slot in QWidget)
                void move(QWidget* w, const QPoint& p) { w->move(p); }
                // add an additional slot to QWidget, overloading the above move method
                void move(QWidget* w, int x, int y) { w->move(x,y); }
                // add a method to your own CPP object
                int doSomething(YourCPPObject* obj, int arg1) { return obj->doSomething(arg1); }
              };
              ...
              PythonQt::self()->addDecorators(new ExampleDecorator());
              PythonQt::self()->registerCPPClass("YourCPPObject");
              \endcode
              After you have registered an instance of the above ExampleDecorator, you can do the following from Python
              (all these calls are mapped to the above decorator slots):
              \code
              from PythonQt import QtCore, QtGui, YourCPPObject
              # call our new constructor of QSize
              size = QtCore.QSize(QPoint(1,2));
              # call our new QPushButton constructor
              button = QtGui.QPushButton("sometext");
              # call the move slot (overload1)
              button.move(QPoint(0,0))
              # call the move slot (overload2)
              button.move(0,0)
              # call the static method
              grabber = QtGui.QWidget.mouseWrapper();
              # create a CPP object via constructor
              yourCpp = YourCPPObject(1,11.5)
              # call the wrapped method on CPP object
              print yourCpp.doSomething(1);
              # destructor will be called:
              yourCpp = None
              \endcode
               \section Building
               PythonQt requires at least Qt 4.2.2 (or higher) and Python 2.3, 2.4, 2.5 or 2.6 on Windows, Linux and MacOS X. It has not yet been tested with Python 3.x, but it should only require minor changes.
               To compile PythonQt, you will need a python developer installation which includes Python's header files and
              the python2x.[lib | dll | so | dynlib].
               The build scripts a currently set to use Python 2.5.
               You may need to tweak the \b build/python.prf file to set the correct Python includes and libs on your system.
               \subsection Windows
               On Windows, the (non-source) Python Windows installer can be used.
               Make sure that you use the same compiler, the current Python distribution is built
               with Visual Studio 2003. If you want to use another compiler, you will need to build
               Python yourself, using your compiler.
               To build PythonQt, you need to set the environment variable \b PYTHON_PATH to point to the root
               dir of the python installation and \b PYTHON_LIB to point to
               the directory where the python lib file is located.
               When using the prebuild Python installer, this will be:
               \code
               > set PYTHON_PATH = c:\Python25
               > set PYTHON_LIB  = c:\Python25\libs
               \endcode
               When using the python sources, this will be something like:
               \code
                > set PYTHON_PATH = c:\yourDir\Python-2.5.1\
                > set PYTHON_LIB  = c:\yourDir\Python-2.5.1\PCbuild8\Win32
               \endcode
               To build all, do the following (after setting the above variables):
               \code
               > cd PythonQtRoot
               > vcvars32
               > qmake
               > nmake
               \endcode
               This should build everything. If Python can not be linked or include files can not be found,
               you probably need to tweak \b build/python.prf
               The tests and examples are located in PythonQt/lib.
               \subsection Linux
               On Linux, you need to install a Python-dev package.
               If Python can not be linked or include files can not be found,
               you probably need to tweak \b build/python.prf
               To build PythonQt, just do a:
               \code
               > cd PythonQtRoot
               > qmake
               > make all
               \endcode
               The tests and examples are located in PythonQt/lib.
               You should add PythonQt/lib to your LD_LIBRARY_PATH so that the runtime
               linker can find the *.so files.
               \subsection MacOsX
               On Mac, Python is installed as a Framework, so you should not need to install it.
               To build PythonQt, just do a:
               \code
               > cd PythonQtRoot
               > qmake
               > make all
               \endcode
               \section Tests
               There is a unit test that tests most features of PythonQt, see the \b tests subdirectory for details.
               \section Examples
               Examples are available in the \b examples directory. The PyScriptingConsole implements a simple
               interactive scripting console that shows how to script a simple application.
               The following shows how to integrate PythonQt into you Qt application:
               \code
               #include "PythonQt.h"
               #include <QApplication>
               ...
               int main( int argc, char **argv )
               {
                QApplication qapp(argc, argv);
                // init PythonQt and Python itself
                PythonQt::init(PythonQt::IgnoreSiteModule | PythonQt::RedirectStdOut);
                // get a smart pointer to the __main__ module of the Python interpreter
                PythonQtObjectPtr mainContext = PythonQt::self()->getMainModule();
                // add a QObject as variable of name "example" to the namespace of the __main__ module
                PyExampleObject example;
                PythonQt::self()->addObject(mainContext, "example", &example);
                // do something
                PythonQt::self()->runScript(mainContext, "print example\n");
                PythonQt::self()->runScript(mainContext, "def multiply(a,b):\n  return a*b;\n");
                QVariantList args;
                args << 42 << 47;
                QVariant result = PythonQt::self()->call(mainContext,"multiply", args);
                ...
               \endcode
              */

src/PythonQtObjectPtr.cpp +5 0

              /*
               *
               *  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    PythonQtObjectPtr.cpp
              // \author  Florian Link
              // \author  Last changed by $Author: florian $
              // \date    2006-05
              */
              //----------------------------------------------------------------------------------
              #include <PythonQt.h>
              QVariant PythonQtObjectPtr::evalScript(const QString& script, int start)
              {
                return PythonQt::self()->evalScript(_object, script, start);
              }
              void PythonQtObjectPtr::evalFile(const QString& file)
              {
                PythonQt::self()->evalFile(_object, file);
              }
              QVariant PythonQtObjectPtr::evalCode(PyObject* pycode)
              {
                return PythonQt::self()->evalCode(_object, pycode);
              }
              void PythonQtObjectPtr::addObject(const QString& name, QObject* object)
              {
                PythonQt::self()->addObject(_object, name, object);
              }
              void PythonQtObjectPtr::addVariable(const QString& name, const QVariant& v)
              {
                PythonQt::self()->addVariable(_object, name, v);
              }
              void PythonQtObjectPtr::removeVariable(const QString& name)
              {
                PythonQt::self()->removeVariable(_object, name);
              }
              QVariant PythonQtObjectPtr::getVariable(const QString& name)
              {
                return PythonQt::self()->getVariable(_object, name);
              }
              QVariant PythonQtObjectPtr::call(const QString& callable, const QVariantList& args)
              {
                return PythonQt::self()->call(_object, callable, args);
              }
+             QVariant PythonQtObjectPtr::call(const QVariantList& args)
+             {
+               return PythonQt::self()->call(_object, args);
+             }
              bool PythonQtObjectPtr::fromVariant(const QVariant& variant)
              {
                if (!variant.isNull()) {
                    setObject(qVariantValue<PythonQtObjectPtr>(variant));
                    return true;
                }
                else {
                    setObject(0);
                    return false;
                }
              }

src/PythonQtObjectPtr.h +2 -2

              #ifndef _PYTHONQTOBJECTPTR_H
              #define _PYTHONQTOBJECTPTR_H
              /*
               *
               *  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    PythonQtObjectPtr.h
              // \author  Florian Link
              // \author  Last changed by $Author: florian $
              // \date    2006-05
              */
              //----------------------------------------------------------------------------------
              #include <Python.h>
              #include "PythonQtSystem.h"
              #include <QVariant>
              #include <QVariantList>
              //! a smart pointer that stores a PyObject pointer and that handles reference counting automatically
              class PYTHONQT_EXPORT PythonQtObjectPtr
              {
              public:
                PythonQtObjectPtr():_object(NULL) {}
                PythonQtObjectPtr(const PythonQtObjectPtr &p):_object(NULL) {
                  setObject(p.object());
                }
                //! If the given variant holds a PythonQtObjectPtr, extract the value from it and hold onto the reference. This results in an increment of the reference count.
                PythonQtObjectPtr(const QVariant& variant):_object(NULL) {
                    fromVariant(variant);
                }
                PythonQtObjectPtr(PyObject* o) {
                  _object = o;
                  if (o) Py_INCREF(_object);
                }
                ~PythonQtObjectPtr() { if (_object) Py_DECREF(_object); }
                //! If the given variant holds a PythonQtObjectPtr, extract the value from it and hold onto the reference. This results in an increment of the reference count.
                bool fromVariant(const QVariant& variant);
                PythonQtObjectPtr &operator=(const PythonQtObjectPtr &p) {
                  setObject(p.object());
                  return *this;
                }
                PythonQtObjectPtr &operator=(PyObject* o) {
                  setObject(o);
                  return *this;
                }
                PythonQtObjectPtr &operator=(const QVariant& variant) {
                    fromVariant(variant);
                    return *this;
                }
                bool operator==( const PythonQtObjectPtr &p ) const {
                  return object() == p.object();
                }
                bool operator!= ( const PythonQtObjectPtr& p ) const {
                  return !( *this == p );
                }
                bool operator==( PyObject* p ) const {
                  return object() == p;
                }
                bool operator!= ( PyObject* p ) const {
                  return object() != p;
                }
                bool isNull() const { return !object(); }
                PyObject* operator->() const { return object(); }
                PyObject& operator*() const { return *( object() ); }
                operator PyObject*() const { return object(); }
                //! sets the object and passes the ownership (stealing the reference, in Python slang)
                void setNewRef(PyObject* o) {
                  if (o != _object) {
                    if (_object) Py_DECREF(_object);
                    _object = o;
                  }
                }
                PyObject* object() const {
                  return _object;
                }
                //! evaluates the given script code in the context of this object and returns the result value
                QVariant evalScript(const QString& script, int start = Py_file_input);
                //! evaluates the given code and returns the result value (use Py_Compile etc. to create pycode from string)
                //! If pycode is NULL, a python error is printed.
                QVariant evalCode(PyObject* pycode);
                //! evaluates the given code in the context
                void evalFile(const QString& filename);
                //! add the given \c object to the \c module as a variable with \c name (it can be removed via clearVariable)
                void addObject(const QString& name, QObject* object);
                //! add the given variable to the module
                void addVariable(const QString& name, const QVariant& v);
                //! remove the given variable
                void removeVariable(const QString& name);
                //! get the variable with the \c name of the \c module, returns an invalid QVariant on error
                QVariant getVariable(const QString& name);
                //! call the given python object (in the scope of the current object), returns the result converted to a QVariant
                QVariant call(const QString& callable, const QVariantList& args = QVariantList());
+               //! call the contained python object directly, returns the result converted to a QVariant
+               QVariant call(const QVariantList& args = QVariantList());
              protected:
                void setObject(PyObject* o) {
                  if (o != _object) {
                    if (_object) Py_DECREF(_object);
                    _object = o;
                    if (_object) Py_INCREF(_object);
                  }
                }
              private:
                PyObject* _object;
              };
              // register it to the meta type system
              Q_DECLARE_METATYPE(PythonQtObjectPtr)
              #endif
  No newline at end of file

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