Implemented support to properties on QMetaObject.

Reviewer: Hugo Parente Lima <hugo.lima@openbossa.org>,
          Luciano Wolf <luciano.wolf@openbossa.org>

9 files changed, 830 insertions, 33 deletions

diff --git a/libpyside/CMakeLists.txt b/libpyside/CMakeLists.txt
index efbe1f2b5..57ecb8013 100644
--- a/libpyside/CMakeLists.txt
+++ b/libpyside/CMakeLists.txt
@@ -6,6 +6,7 @@ signalmanager.cpp
 globalreceiver.cpp
 qsignal.cpp
 qslot.cpp
+qproperty.cpp
 pyside.cpp
 )
 
@@ -36,6 +37,7 @@ set(libpyside_HEADERS
     signalmanager.h
     pyside.h
     qsignal.h
+    qproperty.h
 )
 
 # create pkg-config file
diff --git a/libpyside/dynamicqmetaobject.cpp b/libpyside/dynamicqmetaobject.cpp
index 562f2d476..8f97b567e 100644
--- a/libpyside/dynamicqmetaobject.cpp
+++ b/libpyside/dynamicqmetaobject.cpp
@@ -43,11 +43,36 @@
 #include <QMetaMethod>
 
 #include "qsignal.h"
+#include "qproperty.h"
 
 #define MAX_SIGNALS_COUNT 50
+#define MAX_SLOTS_COUNT 50
 
 using namespace PySide;
 
+enum PropertyFlags  {
+    Invalid = 0x00000000,
+    Readable = 0x00000001,
+    Writable = 0x00000002,
+    Resettable = 0x00000004,
+    EnumOrFlag = 0x00000008,
+    StdCppSet = 0x00000100,
+//     Override = 0x00000200,
+    Constant = 0x00000400,
+    Final = 0x00000800,
+    Designable = 0x00001000,
+    ResolveDesignable = 0x00002000,
+    Scriptable = 0x00004000,
+    ResolveScriptable = 0x00008000,
+    Stored = 0x00010000,
+    ResolveStored = 0x00020000,
+    Editable = 0x00040000,
+    ResolveEditable = 0x00080000,
+    User = 0x00100000,
+    ResolveUser = 0x00200000,
+    Notify = 0x00400000
+};
+
 static int registerString(const QByteArray& s, QList<QByteArray>* strings)
 {
     int idx = 0;
@@ -61,6 +86,89 @@ static int registerString(const QByteArray& s, QList<QByteArray>* strings)
     return idx;
 }
 
+static int qvariant_nameToType(const char* name)
+{
+    if (!name)
+        return 0;
+
+    if (strcmp(name, "QVariant") == 0)
+        return 0xffffffff;
+    if (strcmp(name, "QCString") == 0)
+        return QMetaType::QByteArray;
+    if (strcmp(name, "Q_LLONG") == 0)
+        return QMetaType::LongLong;
+    if (strcmp(name, "Q_ULLONG") == 0)
+        return QMetaType::ULongLong;
+    if (strcmp(name, "QIconSet") == 0)
+        return QMetaType::QIcon;
+
+    uint tp = QMetaType::type(name);
+    return tp < QMetaType::User ? tp : 0;
+}
+
+/*
+  Returns true if the type is a QVariant types.
+*/
+static bool isVariantType(const char* type)
+{
+    return qvariant_nameToType(type) != 0;
+}
+
+/*!
+  Returns true if the type is qreal.
+*/
+static bool isQRealType(const char *type)
+{
+    return strcmp(type, "qreal") == 0;
+}
+
+uint PropertyData::flags() const
+{
+    const char* typeName = type().data();
+    uint flags = Invalid;
+    if (!isVariantType(typeName))
+         flags |= EnumOrFlag;
+    else if (!isQRealType(typeName))
+        flags |= qvariant_nameToType(typeName) << 24;
+
+    if (qproperty_is_readble(m_data))
+        flags |= Readable;
+
+    if (qproperty_is_writable(m_data))
+        flags |= Writable;
+
+    if (qproperty_has_reset(m_data))
+        flags |= Resettable;
+
+    if (!qproperty_is_designable(m_data))
+        flags |= ResolveDesignable;
+    else
+        flags |= Designable;
+
+    if (!qproperty_is_scriptable(m_data))
+        flags |= ResolveScriptable;
+    else
+        flags |= Scriptable;
+
+    if (!qproperty_is_stored(m_data))
+        flags |= ResolveStored;
+    else
+        flags |= Stored;
+
+    if (!qproperty_is_user(m_data))
+        flags |= ResolveUser;
+    else
+        flags |= User;
+
+    if (qproperty_is_constant(m_data))
+        flags |= Constant;
+
+    if (qproperty_is_final(m_data))
+        flags |= Final;
+
+    return flags;
+}
+
 MethodData::MethodData(const char* signature, const char* type)
 {
     m_signature = QSharedPointer<QByteArray>(new QByteArray(signature));
@@ -107,6 +215,39 @@ bool MethodData::isValid() const
     return m_signature->size();
 }
 
+
+PropertyData::PropertyData(const char* name, PyObject* data)
+    : m_name(name), m_data(data)
+{
+}
+
+QByteArray PropertyData::type() const
+{
+    return QByteArray(qproperty_get_type(m_data));
+}
+
+
+bool PropertyData::isValid() const
+{
+    return !m_name.isEmpty();
+}
+
+QByteArray PropertyData::name() const
+{
+    return m_name;
+}
+
+bool PropertyData::operator==(const PropertyData& other) const
+{
+    return m_data == other.m_data;
+}
+
+bool PropertyData::operator==(const char* name) const
+{
+    return m_name == QString(name);
+}
+
+
 DynamicQMetaObject::DynamicQMetaObject(const char* className, const QMetaObject* metaObject)
 {
     d.superdata = metaObject;
@@ -153,6 +294,10 @@ void DynamicQMetaObject::addSlot(const char* slot, const char* type)
     if (i != m_slots.end())
         return;
 
+    if (m_slots.size() >= MAX_SLOTS_COUNT) {
+        qWarning() << "Fail to add dynamic slot to QObject. PySide support at most" << MAX_SLOTS_COUNT << "dynamic slots.";
+        return;
+    }
 
     //search for a empty space
     MethodData blank;
@@ -177,6 +322,24 @@ void DynamicQMetaObject::removeSlot(uint index)
     }
 }
 
+void DynamicQMetaObject::addProperty(const char* property, PyObject* data)
+{
+    QLinkedList<PropertyData>::iterator i = qFind(m_properties.begin(), m_properties.end(), property);
+    if (i != m_properties.end())
+        return;
+
+    //search for a empty space
+    PropertyData blank;
+    i = qFind(m_properties.begin(), m_properties.end(), blank);
+    if (i != m_properties.end()) {
+        *i = PropertyData(property, data);
+    } else {
+        m_properties << PropertyData(property, data);
+    }
+    updateMetaObject();
+}
+
+
 DynamicQMetaObject* DynamicQMetaObject::createBasedOn(PyObject* pyObj, PyTypeObject* type, const QMetaObject* base)
 {
     PyObject* key;
@@ -189,6 +352,11 @@ DynamicQMetaObject* DynamicQMetaObject::createBasedOn(PyObject* pyObj, PyTypeObj
 
     while (PyDict_Next(type->tp_dict, &pos, &key, &value)) {
 
+        //Register properties
+        if (value->ob_type == &QProperty_Type) {
+            mo->addProperty(PyString_AsString(key), value);
+        }
+
         //Register signals
         if (value->ob_type == &Signal_Type) {
             PyObject *attr = PyObject_GetAttr(pyObj, key);
@@ -234,6 +402,35 @@ void DynamicQMetaObject::removeSignal(uint index)
     }
 }
 
+void DynamicQMetaObject::writeMethodsData(QLinkedList<MethodData>& methods,
+                                          unsigned int **data,
+                                          QList<QByteArray> *strings,
+                                          int *prtIndex,
+                                          int max_count,
+                                          int null_index,
+                                          int flags)
+{
+    int index = *prtIndex;
+
+    QLinkedList<MethodData>::iterator iMethod = methods.begin();
+    for(int i=0; i < max_count; i++) {
+        QByteArray mType;
+        if (iMethod != methods.end() && ((*iMethod).signature().size() > 0) ) {
+            (*data)[index++] = registerString((*iMethod).signature(), strings); // func name
+            mType = (*iMethod).type();
+            iMethod++;
+        } else {
+            (*data)[index++] = null_index; // func name
+        }
+        (*data)[index++] = null_index; // arguments
+        (*data)[index++] = (mType.size() > 0 ? registerString(mType, strings) : null_index); // normalized type
+        (*data)[index++] = null_index; // tags
+        (*data)[index++] = flags;
+    }
+
+    *prtIndex = index;
+}
+
 void DynamicQMetaObject::updateMetaObject()
 {
     // these values are from moc source code, generator.cpp:66
@@ -251,22 +448,23 @@ void DynamicQMetaObject::updateMetaObject()
     };
 
     uint n_signals = MAX_SIGNALS_COUNT;
-    uint n_methods = n_signals + m_slots.count();
+    uint n_methods = n_signals + MAX_SLOTS_COUNT;
+    uint n_properties = m_properties.size();
     int header[] = {5,            // revision
                     0,            // class name index in m_metadata
                     0, 0,         // classinfo and classinfo index, not used by us
                     n_methods, 0, // method count and method list index
-                    0, 0,         // prop count and prop indexes
+                    n_properties, 0, // prop count and prop indexes
                     0, 0,         // enum count and enum index
                     0, 0,         // constructors
-                    MAX_SIGNALS_COUNT};
+                    n_signals};
 
     const int HEADER_LENGHT = sizeof(header)/sizeof(int);
     header[5] = HEADER_LENGHT;
     // header size + 5 indexes per method + an ending zero
     delete[] d.data;
     unsigned int* data;
-    data = new unsigned int[HEADER_LENGHT + n_methods*5 + 1];
+    data = new unsigned int[HEADER_LENGHT + n_methods*5 + n_properties*3 + 1];
     std::memcpy(data, header, sizeof(header));
 
     QList<QByteArray> strings;
@@ -275,35 +473,25 @@ void DynamicQMetaObject::updateMetaObject()
     int index = HEADER_LENGHT;
 
     //write signals
-    QLinkedList<MethodData>::iterator iSignal = m_signals.begin();
-    for(int i=0; i < MAX_SIGNALS_COUNT; i++) {
-        QByteArray sigType;
-        if (iSignal != m_signals.end() && ((*iSignal).signature().size() > 0) ) {
-            data[index++] = registerString((*iSignal).signature(), &strings); // func name
-            sigType = (*iSignal).type();
-            iSignal++;
-        } else {
-            data[index++] = NULL_INDEX; // func name
-        }
-        data[index++] = NULL_INDEX; // arguments
-        data[index++] = (sigType.size() > 0 ? registerString(sigType, &strings) : NULL_INDEX); // normalized type
-        data[index++] = NULL_INDEX; // tags
-        data[index++] = AccessPublic | MethodSignal; // flags
-    }
-
+    writeMethodsData(m_signals, &data, &strings, &index, MAX_SIGNALS_COUNT, NULL_INDEX, AccessPublic | MethodSignal);
 
     //write slots
-    foreach(MethodData slot, m_slots) {
-        if (slot.isValid())
-            data[index++] = registerString(slot.signature(), &strings); // func name
+    writeMethodsData(m_slots, &data, &strings, &index, MAX_SLOTS_COUNT, NULL_INDEX, AccessPublic | MethodSlot);
+
+    if (m_properties.size())
+        data[7] = index;
+
+    //write properties
+    foreach(PropertyData pp, m_properties) {
+        if (pp.isValid())
+            data[index++] = registerString(pp.name(), &strings); // name
         else
             data[index++] = NULL_INDEX;
 
-        data[index++] = NULL_INDEX; // arguments
-        data[index++] = (slot.isValid() ? registerString(slot.type(), &strings) :  NULL_INDEX); // normalized type
-        data[index++] = NULL_INDEX; // tags
-        data[index++] = AccessPublic | MethodSlot; // flags
+        data[index++] = (pp.isValid() ? registerString(pp.type(), &strings) :  NULL_INDEX); // normalized type
+        data[index++] = pp.flags(); //pp.flags(); //TODO: flags
     }
+
     data[index++] = 0; // the end
 
     // create the m_metadata string
diff --git a/libpyside/dynamicqmetaobject.h b/libpyside/dynamicqmetaobject.h
index 69027f218..23a69c9a9 100644
--- a/libpyside/dynamicqmetaobject.h
+++ b/libpyside/dynamicqmetaobject.h
@@ -66,6 +66,23 @@ private:
     QSharedPointer<QByteArray> m_type;
 };
 
+class PropertyData
+{
+public:
+    PropertyData(){}
+    PropertyData(const char*name, PyObject *data);
+    QByteArray name() const;
+    QByteArray type() const;
+    uint flags() const;
+    bool isValid() const;
+    bool operator==(const PropertyData& other) const;
+    bool operator==(const char* name) const;
+
+private:
+    QByteArray m_name;
+    PyObject* m_data;
+};
+
 class PYSIDE_API DynamicQMetaObject : public QMetaObject
 {
 public:
@@ -74,9 +91,11 @@ public:
 
     void addSignal(const char* signal, const char* type=0);
     void addSlot(const char* slot, const char* type=0);
+    void addProperty(const char* property, PyObject* data);
 
     void removeSignal(uint idex);
     void removeSlot(uint index);
+    void removeProperty(uint index);
 
     //Retrieve Python metadata to create QMetaObject (class name, signals, slot)
     static DynamicQMetaObject* createBasedOn(PyObject* obj, PyTypeObject* type, const QMetaObject* base);
@@ -84,9 +103,11 @@ public:
 private:
     QLinkedList<MethodData> m_signals;
     QLinkedList<MethodData> m_slots;
+    QLinkedList<PropertyData> m_properties;
     QByteArray m_className;
 
     void updateMetaObject();
+    void writeMethodsData(QLinkedList<MethodData>& methods, unsigned int **data, QList<QByteArray> *strings, int *index, int max_count, int null_index, int flags);
 };
 
 PYSIDE_API inline void deleteDynamicQMetaObject(void* data)
diff --git a/libpyside/pyside.cpp b/libpyside/pyside.cpp
index 93271c8ba..744dfee3a 100644
--- a/libpyside/pyside.cpp
+++ b/libpyside/pyside.cpp
@@ -35,9 +35,11 @@
 
 #include "pyside.h"
 #include "signalmanager.h"
+#include "qproperty.h"
 
 extern "C" void init_signal(PyObject* module);
 extern "C" void init_slot(PyObject* module);
+extern "C" void init_qproperty(PyObject* module);
 
 namespace PySide
 {
@@ -46,6 +48,7 @@ void init(PyObject *module)
 {
     init_signal(module);
     init_slot(module);
+    init_qproperty(module);
     // Init signal manager, so it will register some meta types used by QVariant.
     SignalManager::instance();
 }
diff --git a/libpyside/qproperty.cpp b/libpyside/qproperty.cpp
new file mode 100644
index 000000000..781c8cf3b
--- /dev/null
+++ b/libpyside/qproperty.cpp
@@ -0,0 +1,318 @@
+/*
+ * 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
+ */
+
+#include <shiboken.h>
+#include <Python.h>
+#include <QDebug>
+
+#include "qproperty.h"
+
+
+#define QPROPERTY_CLASS_NAME "QProperty"
+
+namespace PySide
+{
+
+extern "C"
+{
+
+typedef struct {
+    PyObject_HEAD
+    char* typeName;
+    PyObject* type;
+    PyObject* fget;
+    PyObject* fset;
+    PyObject* freset;
+    PyObject* fdel;
+    char* doc;
+    bool designable;
+    bool scriptable;
+    bool stored;
+    bool user;
+    bool constant;
+    bool final;
+} QPropertyData;
+
+static int qproperty_init(PyObject*, PyObject*, PyObject*);
+static void qproperty_free(void*);
+
+//aux
+static char* translate_type_name(PyObject*);
+
+PyTypeObject QProperty_Type = {
+    PyObject_HEAD_INIT(0)
+    0,                         /*ob_size*/
+    QPROPERTY_CLASS_NAME,      /*tp_name*/
+    sizeof(QPropertyData),     /*tp_basicsize*/
+    0,                         /*tp_itemsize*/
+    0,                         /*tp_dealloc*/
+    0,                         /*tp_print*/
+    0,                         /*tp_getattr*/
+    0,                         /*tp_setattr*/
+    0,                         /*tp_compare*/
+    0,                         /*tp_repr*/
+    0,                         /*tp_as_number*/
+    0,                         /*tp_as_sequence*/
+    0,                         /*tp_as_mapping*/
+    0,                         /*tp_hash */
+    0,                         /*tp_call*/
+    0,                         /*tp_str*/
+    0,                         /*tp_getattro*/
+    0,                         /*tp_setattro*/
+    0,                         /*tp_as_buffer*/
+    Py_TPFLAGS_DEFAULT,        /*tp_flags*/
+    0,                         /*tp_doc */
+    0,                         /*tp_traverse */
+    0,                         /*tp_clear */
+    0,                         /*tp_richcompare */
+    0,                         /*tp_weaklistoffset */
+    0,                         /*tp_iter */
+    0,                         /*tp_iternext */
+    0,                         /*tp_methods */
+    0,                         /*tp_members */
+    0,                         /*tp_getset */
+    0,                         /*tp_base */
+    0,                         /*tp_dict */
+    0,                         /*tp_descr_get */
+    0,                         /*tp_descr_set */
+    0,                         /*tp_dictoffset */
+    (initproc)qproperty_init,  /*tp_init */
+    0,                         /*tp_alloc */
+    PyType_GenericNew,         /*tp_new */
+    qproperty_free,            /*tp_free */
+    0,                         /*tp_is_gc */
+    0,                         /*tp_bases */
+    0,                         /*tp_mro */
+    0,                         /*tp_cache */
+    0,                         /*tp_subclasses */
+    0,                         /*tp_weaklist */
+    0,                         /*tp_del */
+};
+
+void init_qproperty(PyObject* module)
+{
+    if (PyType_Ready(&QProperty_Type) < 0)
+        return;
+
+    Py_INCREF(&QProperty_Type);
+    PyModule_AddObject(module, QPROPERTY_CLASS_NAME, ((PyObject*)&QProperty_Type));
+}
+
+} // extern "C"
+
+int qproperty_init(PyObject* self, PyObject* args, PyObject* kwds)
+{
+    PyObject* type = 0;
+    QPropertyData *data = reinterpret_cast<QPropertyData*>(self);
+    data->designable = true;
+    data->scriptable = true;
+    data->stored = true;
+
+    static const char *kwlist[] = {"fget", "fset", "freset", "fdel", "doc",
+                                   "designable", "scriptable", "stored", "user",
+                                   "constant", "final", 0};
+    if (!PyArg_ParseTupleAndKeywords(args, kwds,
+                                     "O|OOOOsbbbbbb:QtCore.QProperty", (char**) kwlist,
+                                     &type, &data->fget, &data->fset, &data->freset,
+                                     &data->fdel, &data->doc, &data->designable,
+                                     &data->scriptable, &data->stored, &data->user,
+                                     &data->constant, &data->final))
+        return 0;
+
+    if (!data->fset && data->fget)
+        data->constant = true;
+
+    data->typeName = translate_type_name(type);
+    return 1;
+}
+
+void qproperty_free(void *self)
+{
+    PyObject *pySelf = reinterpret_cast<PyObject*>(self);
+    QPropertyData *data = reinterpret_cast<QPropertyData*>(self);
+
+    free(data->typeName);
+    free(data->doc);
+
+    pySelf->ob_type->tp_base->tp_free(self);
+}
+
+bool isQPropertyType(PyObject* pyObj)
+{
+    if (pyObj) {
+        return pyObj->ob_type == &QProperty_Type;
+    }
+    return false;
+}
+
+int qproperty_set(PyObject* self, PyObject* source, PyObject* value)
+{
+    QPropertyData *data = reinterpret_cast<QPropertyData*>(self);
+    if (data->fset) {
+        Shiboken::AutoDecRef args(PyTuple_New(2));
+        PyTuple_SET_ITEM(args, 0, source);
+        PyTuple_SET_ITEM(args, 1, value);
+        Py_INCREF(source);
+        Py_INCREF(value);
+        Shiboken::AutoDecRef result(PyObject_CallObject(data->fset, args));
+        return (result.isNull() ? -1 : 0);
+    }
+    return -1;
+}
+
+PyObject* qproperty_get(PyObject* self, PyObject* source)
+{
+    QPropertyData *data = reinterpret_cast<QPropertyData*>(self);
+    if (data->fget) {
+        Shiboken::AutoDecRef args(PyTuple_New(1));
+        Py_INCREF(source);
+        PyTuple_SET_ITEM(args, 0, source);
+        PyObject *ret =  PyObject_CallObject(data->fget, args);
+        if (!ret) {
+            PyErr_Print();
+        }
+        return ret;
+    }
+    return 0;
+}
+
+int qproperty_reset(PyObject* self, PyObject* source)
+{
+    QPropertyData *data = reinterpret_cast<QPropertyData*>(self);
+    if (data->freset) {
+        Shiboken::AutoDecRef args(PyTuple_New(1));
+        Py_INCREF(source);
+        PyTuple_SET_ITEM(args, 0, source);
+        Shiboken::AutoDecRef result(PyObject_CallObject(data->freset, args));
+        return (result.isNull() ? -1 : 0);
+    }
+    return -1;
+}
+
+
+const char* qproperty_get_type(PyObject* self)
+{
+    QPropertyData *data = reinterpret_cast<QPropertyData*>(self);
+    return data->typeName;
+}
+
+PyObject* qproperty_get_object(PyObject* source, PyObject* name)
+{
+    if (PyObject_HasAttr(source, name)) {
+        PyObject* attr = PyObject_GenericGetAttr(source, name);
+        if (isQPropertyType(attr))
+            return attr;
+        Py_DECREF(attr);
+    }
+    return 0;
+}
+
+char* translate_type_name(PyObject* type)
+{
+    if (PyType_Check(type)) {
+        char *typeName = NULL;
+        if (type->ob_type == &Shiboken::SbkBaseWrapperType_Type) {
+            Shiboken::SbkBaseWrapperType *objType = reinterpret_cast<Shiboken::SbkBaseWrapperType*>(type);
+            typeName = strdup(objType->original_name);
+        } else {
+            //tp_name return the full name
+            Shiboken::AutoDecRef otypeName(PyObject_GetAttrString(type, "__name__"));
+            typeName = strdup(PyString_AS_STRING(otypeName.object()));
+        }
+        if (Shiboken::TypeResolver::getType(typeName) == Shiboken::TypeResolver::ObjectType) {
+            typeName = reinterpret_cast<char*>(realloc(typeName, strlen(typeName) + 1));
+            typeName = strcat(typeName, "*");
+        }
+        return typeName;
+    } else if (PyString_Check(type)) {
+        return strdup(PyString_AS_STRING(type));
+    }
+    return 0;
+}
+
+bool qproperty_is_readble(PyObject* self)
+{
+    QPropertyData *data = reinterpret_cast<QPropertyData*>(self);
+    return (data->fget != 0);
+}
+
+bool qproperty_is_writable(PyObject* self)
+{
+    QPropertyData *data = reinterpret_cast<QPropertyData*>(self);
+    return (data->fset != 0);
+}
+
+bool qproperty_has_reset(PyObject* self)
+{
+    QPropertyData *data = reinterpret_cast<QPropertyData*>(self);
+    return (data->freset != 0);
+}
+
+bool qproperty_is_designable(PyObject* self)
+{
+    QPropertyData *data = reinterpret_cast<QPropertyData*>(self);
+    return data->designable;
+}
+
+bool qproperty_is_scriptable(PyObject* self)
+{
+    QPropertyData *data = reinterpret_cast<QPropertyData*>(self);
+    return data->scriptable;
+}
+
+bool qproperty_is_stored(PyObject* self)
+{
+    QPropertyData *data = reinterpret_cast<QPropertyData*>(self);
+    return data->stored;
+}
+
+bool qproperty_is_user(PyObject* self)
+{
+    QPropertyData *data = reinterpret_cast<QPropertyData*>(self);
+    return data->user;
+}
+
+bool qproperty_is_constant(PyObject* self)
+{
+    QPropertyData *data = reinterpret_cast<QPropertyData*>(self);
+    return data->constant;
+}
+
+bool qproperty_is_final(PyObject* self)
+{
+    QPropertyData *data = reinterpret_cast<QPropertyData*>(self);
+    return data->final;
+}
+
+} //namespace PySide
diff --git a/libpyside/qproperty.h b/libpyside/qproperty.h
new file mode 100644
index 000000000..7e0e1bc93
--- /dev/null
+++ b/libpyside/qproperty.h
@@ -0,0 +1,187 @@
+/*
+ * 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 PYSIDE_PROPERTY_H
+#define PYSIDE_PROPERTY_H
+
+#include <pysidemacros.h>
+#include <Python.h>
+#include <QObject>
+
+namespace PySide
+{
+
+extern "C"
+{
+    PyAPI_DATA(PyTypeObject) QProperty_Type;
+}; //extern "C"
+
+PYSIDE_API bool isQPropertyType(PyObject* pyObj);
+
+/**
+ * This function call set property function and pass value as arg
+ * This function does not check the property object type
+ *
+ * @param   self The property object
+ * @param   source The QObject witch has the property
+ * @param   value The value to set in property
+ * @return  Return 0 if ok or -1 if this function fail
+ **/
+PYSIDE_API int qproperty_set(PyObject* self, PyObject* source, PyObject* value);
+
+/**
+ * This function call get property function
+ * This function does not check the property object type
+ *
+ * @param   self The property object
+ * @param   source The QObject witch has the property
+ * @return  Return the result of property get function or 0 if this fail
+ **/
+PYSIDE_API PyObject* qproperty_get(PyObject* self, PyObject* source);
+
+/**
+ * This function call reset property function
+ * This function does not check the property object type
+ *
+ * @param   self The property object
+ * @param   source The QObject witch has the property
+ * @return  Return 0 if ok or -1 if this function fail
+ **/
+PYSIDE_API int qproperty_reset(PyObject* self, PyObject* source);
+
+
+/**
+ * This function return the property type
+ * This function does not check the property object type
+ *
+ * @param   self The property object
+ * @return  Return the property type name
+ **/
+PYSIDE_API const char* qproperty_get_type(PyObject* self);
+
+/**
+ * This function search in the source object for desired property
+ *
+ * @param   source The QObject object
+ * @param   name The property name
+ * @return  Return a new reference to property object
+ **/
+PYSIDE_API PyObject* qproperty_get_object(PyObject* source, PyObject* name);
+
+
+/**
+ * This function check if property has read function
+ * This function does not check the property object type
+ *
+ * @param   self The property object
+ * @return  Return a boolean value
+ **/
+PYSIDE_API bool qproperty_is_readble(PyObject* self);
+
+/**
+ * This function check if property has write function
+ * This function does not check the property object type
+ *
+ * @param   self The property object
+ * @return  Return a boolean value
+ **/
+PYSIDE_API bool qproperty_is_writable(PyObject* self);
+
+/**
+ * This function check if property has reset function
+ * This function does not check the property object type
+ *
+ * @param   self The property object
+ * @return  Return a boolean value
+ **/
+PYSIDE_API bool qproperty_has_reset(PyObject* self);
+
+/**
+ * This function check if property has the flag DESIGNABLE setted
+ * This function does not check the property object type
+ *
+ * @param   self The property object
+ * @return  Return a boolean value
+ **/
+PYSIDE_API bool qproperty_is_designable(PyObject* self);
+
+/**
+ * This function check if property has the flag SCRIPTABLE setted
+ * This function does not check the property object type
+ *
+ * @param   self The property object
+ * @return  Return a boolean value
+ **/
+PYSIDE_API bool qproperty_is_scriptable(PyObject* self);
+
+/**
+ * This function check if property has the flag STORED setted
+ * This function does not check the property object type
+ *
+ * @param   self The property object
+ * @return  Return a boolean value
+ **/
+PYSIDE_API bool qproperty_is_stored(PyObject* self);
+
+/**
+ * This function check if property has the flag USER setted
+ * This function does not check the property object type
+ *
+ * @param   self The property object
+ * @return  Return a boolean value
+ **/
+PYSIDE_API bool qproperty_is_user(PyObject* self);
+
+/**
+ * This function check if property has the flag CONSTANT setted
+ * This function does not check the property object type
+ *
+ * @param   self The property object
+ * @return  Return a boolean value
+ **/
+PYSIDE_API bool qproperty_is_constant(PyObject* self);
+
+/**
+ * This function check if property has the flag FINAL setted
+ * This function does not check the property object type
+ *
+ * @param   self The property object
+ * @return  Return a boolean value
+ **/
+PYSIDE_API bool qproperty_is_final(PyObject* self);
+
+
+} //namespace PySide
+
+#endif
diff --git a/libpyside/qsignal.cpp b/libpyside/qsignal.cpp
index b19c5658c..dff9cc184 100644
--- a/libpyside/qsignal.cpp
+++ b/libpyside/qsignal.cpp
@@ -229,10 +229,11 @@ PyObject* signal_instance_get_item(PyObject* self, PyObject* key)
 void signalUpdateSource(PyObject* source)
 {
     Shiboken::AutoDecRef attrs(PyObject_Dir(source));
+
     for(int i = 0, i_max = PyList_GET_SIZE(attrs.object()); i < i_max; i++) {
         PyObject *attrName = PyList_GET_ITEM(attrs.object(), i);
-        Shiboken::AutoDecRef attr(PyObject_GetAttr(source, attrName));
-        if (attr->ob_type == &Signal_Type) {
+        Shiboken::AutoDecRef attr(PyObject_GetAttr((PyObject*)source->ob_type, attrName));
+        if (!attr.isNull() && (attr->ob_type == &Signal_Type)) {
             Shiboken::AutoDecRef signalInstance(reinterpret_cast<PyObject*>(PyObject_New(SignalInstanceData, &SignalInstance_Type)));
             signal_instance_initialize(signalInstance, attrName, reinterpret_cast<SignalData*>(attr.object()), source, 0);
             PyObject_SetAttr(source, attrName, signalInstance);
diff --git a/libpyside/signalmanager.cpp b/libpyside/signalmanager.cpp
index f1734001b..de0de7d86 100644
--- a/libpyside/signalmanager.cpp
+++ b/libpyside/signalmanager.cpp
@@ -33,6 +33,7 @@
 */
 
 #include "signalmanager.h"
+#include "qproperty.h"
 
 #include <QHash>
 #include <QStringList>
@@ -351,14 +352,87 @@ bool SignalManager::emitSignal(QObject* source, const char* signal, PyObject* ar
     return false;
 }
 
-int PySide::SignalManager::qt_metacall(QObject* object, QMetaObject::Call call, int id, void** args)
+int SignalManager::qt_metacall(QObject* object, QMetaObject::Call call, int id, void** args)
 {
     const QMetaObject* metaObject = object->metaObject();
-    // only meta method invocation is supported right now.
+    PyObject* pp = 0;
+    PyObject* pp_name = 0;
+    QMetaProperty mp;
+    Shiboken::TypeResolver* typeResolver = 0;
+    PyObject* pySelf = Shiboken::BindingManager::instance().retrieveWrapper(object);
+
     if (call != QMetaObject::InvokeMetaMethod) {
-        qWarning("Only meta method invocation is supported right now by PySide.");
-        return id - metaObject->methodCount();
+        mp = metaObject->property(id);
+        if (!mp.isValid())
+            return id - metaObject->methodCount();
+
+        pp_name = PyString_FromString(mp.name());
+        pp = qproperty_get_object(pySelf, pp_name);
+        if (!pp) {
+            qWarning("Invalid property.");
+            Py_XDECREF(pp_name);
+            return id - metaObject->methodCount();
+        }
+        printf("access to property: %s-%s\n", mp.name(), mp.typeName());
+        typeResolver = Shiboken::TypeResolver::get(mp.typeName());
+    }
+
+    switch(call) {
+#ifndef QT_NO_PROPERTIES
+        case QMetaObject::ReadProperty:
+        {
+            PyObject* value = qproperty_get(pp, pySelf);
+            if (value) {
+                void *data = typeResolver->toCpp(value);
+                if (Shiboken::TypeResolver::getType(mp.typeName()) == Shiboken::TypeResolver::ObjectType)
+                    args[0] = &data;
+                else
+                    args[0] = data;
+
+                Py_DECREF(value);
+            }
+            break;
+        }
+
+        case QMetaObject::WriteProperty:
+        {
+            Shiboken::AutoDecRef value(typeResolver->toPython(args[0]));
+            qproperty_set(pp, pySelf, value);
+            break;
+        }
+
+        case QMetaObject::ResetProperty:
+            qproperty_reset(pp, pp_name);
+            break;
+
+        case QMetaObject::QueryPropertyDesignable:
+        case QMetaObject::QueryPropertyScriptable:
+        case QMetaObject::QueryPropertyStored:
+        case QMetaObject::QueryPropertyEditable:
+        case QMetaObject::QueryPropertyUser:
+            break;
+#endif
+        case QMetaObject::InvokeMetaMethod:
+            id = call_method(object, id, args);
+            break;
+
+        default:
+            qWarning("Unsupported meta invocation type.");
     }
+
+    if (call == QMetaObject::InvokeMetaMethod)
+        id = id - metaObject->methodCount();
+    else
+        id = id - metaObject->propertyCount();
+
+    Py_XDECREF(pp);
+    Py_XDECREF(pp_name);
+    return id;
+}
+
+int SignalManager::call_method(QObject* object, int id, void** args)
+{
+    const QMetaObject* metaObject = object->metaObject();
     QMetaMethod method = metaObject->method(id);
 
     if (method.methodType() == QMetaMethod::Signal) {
@@ -403,6 +477,7 @@ int PySide::SignalManager::qt_metacall(QObject* object, QMetaObject::Call call,
 
 bool SignalManager::registerMetaMethod(QObject* source, const char* signature, QMetaMethod::MethodType type)
 {
+    Q_ASSERT(source);
     const QMetaObject* metaObject = source->metaObject();
     int methodIndex = metaObject->indexOfMethod(signature);
     // Create the dynamic signal is needed
diff --git a/libpyside/signalmanager.h b/libpyside/signalmanager.h
index 72acd1d93..08160a5a1 100644
--- a/libpyside/signalmanager.h
+++ b/libpyside/signalmanager.h
@@ -94,6 +94,8 @@ private:
     // disable copy
     SignalManager(const SignalManager&);
     SignalManager operator=(const SignalManager&);
+
+    static int call_method(QObject* object, int id, void** args);
 };
 
 }