Initial port of signal slots infrastructure from PySide to the Shiboken version.

libpyside/typeresolver.h

@@ -0,0 +1,118 @@
+/*
+* This file is part of the Shiboken Python Bindings Generator project.
+*
+* Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+*
+* Contact: PySide team <contact@pyside.org>
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU Lesser General Public License
+* version 2.1 as published by the Free Software Foundation. Please
+* review the following information to ensure the GNU Lesser General
+* Public License version 2.1 requirements will be met:
+* http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+*
+* As a special exception to the GNU Lesser General Public License
+* version 2.1, the object code form of a "work that uses the Library"
+* may incorporate material from a header file that is part of the
+* Library.  You may distribute such object code under terms of your
+* choice, provided that the incorporated material (i) does not exceed
+* more than 5% of the total size of the Library; and (ii) is limited to
+* numerical parameters, data structure layouts, accessors, macros,
+* inline functions and templates.
+*
+* This program 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.
+*
+* You should have received a copy of the GNU Lesser General Public
+* License along with this program; if not, write to the Free Software
+* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+* 02110-1301 USA
+*/
+
+#ifndef TYPERESOLVER_H
+#define TYPERESOLVER_H
+
+#include "pysidemacros.h"
+#include "conversions.h"
+#include <Python.h>
+#include <QGenericArgument>
+
+namespace PySide
+{
+
+/* value type convertion functions */
+template <class T>
+inline PyObject* objectToPython(void* p)
+{
+    return Shiboken::SbkBaseWrapper_New(reinterpret_cast<Shiboken::SbkBaseWrapperType*>(Shiboken::SbkType<T>()), p);
+}
+
+template <>
+inline PyObject* objectToPython<int>(void* p)
+{
+    return PyInt_FromLong(*reinterpret_cast<int*>(p));
+}
+
+template <class T>
+inline void* pythonToValueType(PyObject* pyobj)
+{
+    return new T(Shiboken::Converter<T>::toCpp(pyobj));
+}
+
+template <class T>
+inline void* pythonToObjectType(PyObject* pyobj)
+{
+    // TODO: Check if we could just check if this type is a shibotype and use the ptr
+    // buuuuut.... what if it's a primitive type!?
+    return Shiboken::Converter<T*>::toCpp(pyobj);
+}
+
+template <class T>
+inline void objectDeleter(void *data)
+{
+    delete reinterpret_cast<T*>(data);
+}
+
+class PYSIDE_API TypeResolver
+{
+public:
+    typedef PyObject* (*CppToPythonFunc)(void*);
+    typedef void* (*PythonToCppFunc)(PyObject*);
+    typedef void (*DeleteObjectFunc)(void*);
+
+    ~TypeResolver();
+
+    template<typename T>
+    static TypeResolver* createValueTypeResolver(const char* typeName)
+    {
+        return new TypeResolver(typeName, &objectToPython<T>, &pythonToValueType<T>, &objectDeleter<T>);
+    }
+
+    template<typename T>
+    static TypeResolver* createObjectTypeResolver(const char* typeName)
+    {
+        return new TypeResolver(typeName, &objectToPython<T>, &pythonToObjectType<T>, &objectDeleter<T>);
+    }
+
+    static TypeResolver* get(const char* typeName);
+    static TypeResolver* get(const QString& typeName);
+
+    const char* typeName() const;
+    PyObject* toPython(void* cppObj);
+    void* toCpp(PyObject* pyObj);
+private:
+    struct TypeResolverPrivate;
+    TypeResolverPrivate* m_d;
+
+    // disable object copy
+    TypeResolver(const TypeResolver&);
+    TypeResolver& operator=(const TypeResolver&);
+
+    TypeResolver(const char* typeName, CppToPythonFunc cppToPy, PythonToCppFunc pyToCpp, DeleteObjectFunc deleter);
+};
+}
+
+#endif