Implemented DynamicMetaObject optiomizations.

Reviewer: Luciano Wolf <luciano.wolf@openbossa.org>
          Lauro Neto <lauro.neto@openbossa.org>

8 files changed, 144 insertions, 51 deletions

diff --git a/PySide/QtCore/glue/qobject_connect.cpp b/PySide/QtCore/glue/qobject_connect.cpp
index 91a272c3c..3296c2e89 100644
--- a/PySide/QtCore/glue/qobject_connect.cpp
+++ b/PySide/QtCore/glue/qobject_connect.cpp
@@ -59,11 +59,10 @@ static bool qobjectConnectCallback(QObject* source, const char* signal, PyObject
         return false;
     signal++;
 
-    if (!PySide::SignalManager::registerMetaMethod(source, signal, QMetaMethod::Signal))
+    int signalIndex = PySide::SignalManager::registerMetaMethodGetIndex(source, signal, QMetaMethod::Signal);
+    if (signalIndex == -1)
         return false;
 
-    int signalIndex = source->metaObject()->indexOfMethod(signal);
-
     PySide::SignalManager& signalManager = PySide::SignalManager::instance();
 
     // Extract receiver from callback
@@ -82,13 +81,14 @@ static bool qobjectConnectCallback(QObject* source, const char* signal, PyObject
             qWarning() << "You can't add dynamic slots on an object originated from C++.";
             return false;
         }
-        if (usingGlobalReceiver) {
-            signalManager.addGlobalSlot(slot, callback);
-        } else {
-            if (!PySide::SignalManager::registerMetaMethod(receiver, slot, QMetaMethod::Slot))
-                return false;
-        }
-        slotIndex = metaObject->indexOfSlot(slot);
+
+        if (usingGlobalReceiver)
+            slotIndex = signalManager.addGlobalSlotGetIndex(slot, callback);
+        else
+            slotIndex = PySide::SignalManager::registerMetaMethodGetIndex(receiver, slot, QMetaMethod::Slot);
+
+        if (slotIndex == -1)
+            return false;
     }
     if (QMetaObject::connect(source, signalIndex, receiver, slotIndex, type)) {
         if (usingGlobalReceiver)
diff --git a/libpyside/dynamicqmetaobject.cpp b/libpyside/dynamicqmetaobject.cpp
index 205c7286e..dfc8ce281 100644
--- a/libpyside/dynamicqmetaobject.cpp
+++ b/libpyside/dynamicqmetaobject.cpp
@@ -87,6 +87,10 @@ public:
     QList<PropertyData> m_properties;
     QMap<QByteArray, QByteArray> m_info;
     QByteArray m_className;
+    bool m_invalid;
+    int m_methodOffset;
+    int m_propertyOffset;
+    int m_count;
 
     void updateMetaObject(QMetaObject* metaObj);
     void writeMethodsData(const QList<MethodData>& methods, unsigned int** data, QList<QByteArray>* strings, int* prtIndex, int nullIndex, int flags);
@@ -95,8 +99,7 @@ public:
 static int registerString(const QByteArray& s, QList<QByteArray>* strings)
 {
     int idx = 0;
-    for (int i = 0; i < strings->count(); ++i) {
-        const QString &str = strings->at(i);
+    foreach(QByteArray str, *strings) {
         if (str == s)
             return idx;
         idx += str.length() + 1;
@@ -197,11 +200,13 @@ uint PropertyData::flags() const
 // const QByteArray with EMPTY_META_METHOD, used to save some memory
 const QByteArray MethodData::m_emptySig(EMPTY_META_METHOD);
 
-MethodData::MethodData() : m_signature(m_emptySig)
+MethodData::MethodData()
+    : m_signature(m_emptySig)
 {
 }
 
-MethodData::MethodData(QMetaMethod::MethodType mtype, const char* signature, const char* type) : m_signature(signature), m_type(type), m_mtype(mtype)
+MethodData::MethodData(QMetaMethod::MethodType mtype, const char* signature, const char* type)
+    : m_signature(signature), m_type(type), m_mtype(mtype)
 {
 }
 
@@ -289,9 +294,12 @@ DynamicQMetaObject::DynamicQMetaObject(PyTypeObject* type, const QMetaObject* ba
     d.extradata = 0;
 
     m_d->m_className = QByteArray(type->tp_name).split('.').last();
+    m_d->m_invalid = true;
+    m_d->m_methodOffset = base->methodCount() - 1;
+    m_d->m_propertyOffset = base->propertyCount() - 1;
+    m_d->m_count = 0;
+    //qDebug() << "CREATED: " << m_d->m_className << "OFFSET:" << base->methodOffset() << "COUNT" << base->methodCount();
     parsePythonType(type);
-    //TODO : fill type userData
-    m_d->updateMetaObject(this);
 }
 
 DynamicQMetaObject::DynamicQMetaObject(const char* className, const QMetaObject* metaObject) 
@@ -301,8 +309,11 @@ DynamicQMetaObject::DynamicQMetaObject(const char* className, const QMetaObject*
     d.stringdata = 0;
     d.data = 0;
     d.extradata = 0;
+    m_d->m_count = 0;
+    m_d->m_invalid = true;
     m_d->m_className = className;
-    m_d->updateMetaObject(this);
+    m_d->m_methodOffset = metaObject->methodCount() - 1;
+    m_d->m_propertyOffset = metaObject->propertyCount() - 1;
 }
 
 DynamicQMetaObject::~DynamicQMetaObject()
@@ -312,7 +323,7 @@ DynamicQMetaObject::~DynamicQMetaObject()
     delete m_d;
 }
 
-void DynamicQMetaObject::addMethod(QMetaMethod::MethodType mtype, const char* signature, const char* type)
+int DynamicQMetaObject::addMethod(QMetaMethod::MethodType mtype, const char* signature, const char* type)
 {
     int index = -1;
     int counter = 0;
@@ -321,19 +332,24 @@ void DynamicQMetaObject::addMethod(QMetaMethod::MethodType mtype, const char* si
     QList<MethodData>::iterator it = m_d->m_methods.begin();
     for (; it != m_d->m_methods.end(); ++it) {
         if ((it->signature() == signature) && (it->methodType() == mtype))
-            return;
+            return m_d->m_methodOffset + counter;
         else if (*it == blank)
             index = counter;
         counter++;
     }
 
+    //qDebug() << "FIRST:" << index;
     //has blank method
-    if (index != -1)
+    if (index != -1) {
         m_d->m_methods[index] = MethodData(mtype, signature, type);
-    else
+    } else {
         m_d->m_methods << MethodData(mtype, signature, type);
+        index = m_d->m_methods.size();
+    }
 
-    m_d->updateMetaObject(this);
+    m_d->m_invalid = true;
+    return m_d->m_methodOffset + index;
+    //qDebug() << "RESULTS(" << signature << "): " << result << "/" << indexOfMethod(signature) << "/" << m_d->m_methods.size() << "/" << m_d->m_methodOffset << (void*)this;
 }
 
 void DynamicQMetaObject::removeMethod(QMetaMethod::MethodType mtype, uint index)
@@ -343,20 +359,20 @@ void DynamicQMetaObject::removeMethod(QMetaMethod::MethodType mtype, uint index)
     for (; it != m_d->m_methods.end(); ++it) {
         if ((it->signature() == methodSig) && (it->methodType() == mtype)){
             it->clear();
-            m_d->updateMetaObject(this);
+            m_d->m_invalid = true;
             break;
         }
     }
 }
 
-void DynamicQMetaObject::addSignal(const char* signal, const char* type)
+int DynamicQMetaObject::addSignal(const char* signal, const char* type)
 {
-    addMethod(QMetaMethod::Signal, signal, type);
+    return addMethod(QMetaMethod::Signal, signal, type);
 }
 
-void DynamicQMetaObject::addSlot(const char* slot, const char* type)
+int DynamicQMetaObject::addSlot(const char* slot, const char* type)
 {
-    addMethod(QMetaMethod::Slot, slot, type);
+    return addMethod(QMetaMethod::Slot, slot, type);
 }
 
 void DynamicQMetaObject::removeSlot(uint index)
@@ -369,11 +385,11 @@ void DynamicQMetaObject::removeSignal(uint index)
     removeMethod(QMetaMethod::Signal, index);
 }
 
-void DynamicQMetaObject::addProperty(const char* propertyName, PyObject* data)
+int DynamicQMetaObject::addProperty(const char* propertyName, PyObject* data)
 {
     int index = m_d->m_properties.indexOf(propertyName);
     if (index != -1)
-        return;
+        return m_d->m_propertyOffset + index;
 
     // retrieve notifyId
     int notifyId = -1;
@@ -393,8 +409,10 @@ void DynamicQMetaObject::addProperty(const char* propertyName, PyObject* data)
         m_d->m_properties[index] = PropertyData(propertyName, notifyId, property);
     } else {
         m_d->m_properties << PropertyData(propertyName, notifyId, property);
+        index = m_d->m_properties.size();
     }
-    m_d->updateMetaObject(this);
+    m_d->m_invalid = true;
+    return  m_d->m_propertyOffset + index;
 }
 
 void DynamicQMetaObject::addInfo(const char* key, const char* value)
@@ -409,7 +427,16 @@ void DynamicQMetaObject::addInfo(QMap<QByteArray, QByteArray> info)
         m_d->m_info[i.key()] = i.value();
         ++i;
     }
-    m_d->updateMetaObject(this);
+    m_d->m_invalid = true;
+}
+
+const QMetaObject* DynamicQMetaObject::update() const
+{
+    if (m_d->m_invalid) {
+        m_d->updateMetaObject(const_cast<DynamicQMetaObject*>(this));
+        m_d->m_invalid = false;
+    }
+    return this;
 }
 
 void DynamicQMetaObject::DynamicQMetaObjectPrivate::writeMethodsData(const QList<MethodData>& methods,
@@ -530,7 +557,8 @@ void DynamicQMetaObject::DynamicQMetaObjectPrivate::updateMetaObject(QMetaObject
     }
 
     //write signals/slots
-    writeMethodsData(m_methods, &data, &strings, &index, NULL_INDEX, AccessPublic);
+    if (n_methods)
+        writeMethodsData(m_methods, &data, &strings, &index, NULL_INDEX, AccessPublic);
 
     if (m_properties.size())
         data[7] = index;
diff --git a/libpyside/dynamicqmetaobject.h b/libpyside/dynamicqmetaobject.h
index f95070c28..3ebaf1d08 100644
--- a/libpyside/dynamicqmetaobject.h
+++ b/libpyside/dynamicqmetaobject.h
@@ -39,11 +39,11 @@ public:
     ~DynamicQMetaObject();
 
 
-    void addMethod(QMetaMethod::MethodType mtype, const char* signature, const char* type);
+    int addMethod(QMetaMethod::MethodType mtype, const char* signature, const char* type);
     void removeMethod(QMetaMethod::MethodType mtype, uint index);
-    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);
+    int addSignal(const char* signal, const char* type = 0);
+    int addSlot(const char* slot, const char* type = 0);
+    int addProperty(const char* property, PyObject* data);
     void addInfo(const char* key, const char* value);
     void addInfo(QMap<QByteArray, QByteArray> info);
 
@@ -51,6 +51,8 @@ public:
     void removeSlot(uint index);
     void removeProperty(uint index);
 
+    const QMetaObject* update() const;
+
 private:
     class DynamicQMetaObjectPrivate;
     DynamicQMetaObjectPrivate* m_d;
@@ -58,5 +60,6 @@ private:
     void parsePythonType(PyTypeObject* type);
 };
 
+
 }
 #endif
diff --git a/libpyside/globalreceiver.cpp b/libpyside/globalreceiver.cpp
index 89902126c..435e22aa0 100644
--- a/libpyside/globalreceiver.cpp
+++ b/libpyside/globalreceiver.cpp
@@ -162,6 +162,8 @@ GlobalReceiver::GlobalReceiver()
 {
     //slot used to be notifyed of object destrouction
     m_metaObject.addSlot(RECEIVER_DESTROYED_SLOT_NAME);
+    m_metaObject.update();
+    setObjectName("GLOBAL RECEIVER");
 }
 
 GlobalReceiver::~GlobalReceiver()
@@ -198,13 +200,12 @@ void GlobalReceiver::disconnectNotify(QObject* source, int slotId)
 
 const QMetaObject* GlobalReceiver::metaObject() const
 {
-    return &m_metaObject;
+    return m_metaObject.update();
 }
 
-void GlobalReceiver::addSlot(const char* slot, PyObject* callback)
+int GlobalReceiver::addSlot(const char* slot, PyObject* callback)
 {
-    m_metaObject.addSlot(slot);
-    int slotId = m_metaObject.indexOfSlot(slot);
+    int slotId = m_metaObject.addSlot(slot);
     if (!m_slotReceivers.contains(slotId))
         m_slotReceivers[slotId] = new DynamicSlotData(slotId, callback, this);
 
@@ -219,8 +220,8 @@ void GlobalReceiver::addSlot(const char* slot, PyObject* callback)
     if (isShortCircuit)
         m_shortCircuitSlots << slotId;
 
-
     Q_ASSERT(slotId >= QObject::staticMetaObject.methodCount());
+    return slotId;
 }
 
 void GlobalReceiver::removeSlot(int slotId)
@@ -248,7 +249,7 @@ int GlobalReceiver::qt_metacall(QMetaObject::Call call, int id, void** args)
 {
     Q_ASSERT(call == QMetaObject::InvokeMetaMethod);
     Q_ASSERT(id >= QObject::staticMetaObject.methodCount());
-    QMetaMethod slot = m_metaObject.method(id);
+    QMetaMethod slot = metaObject()->method(id);
     Q_ASSERT(slot.methodType() == QMetaMethod::Slot);
 
     if (strcmp(slot.signature(), RECEIVER_DESTROYED_SLOT_NAME) == 0) {
diff --git a/libpyside/globalreceiver.h b/libpyside/globalreceiver.h
index 616d8d3a4..76c1246d6 100644
--- a/libpyside/globalreceiver.h
+++ b/libpyside/globalreceiver.h
@@ -41,7 +41,7 @@ public:
     ~GlobalReceiver();
     int qt_metacall(QMetaObject::Call call, int id, void** args);
     const QMetaObject* metaObject() const;
-    void addSlot(const char* slot, PyObject* callback);
+    int addSlot(const char* slot, PyObject* callback);
     void removeSlot(int slotId);
     void connectNotify(QObject* sender, int slotId);
     void disconnectNotify(QObject* sender, int slotId);
diff --git a/libpyside/pyside.cpp b/libpyside/pyside.cpp
index 325e27402..45ada8f47 100644
--- a/libpyside/pyside.cpp
+++ b/libpyside/pyside.cpp
@@ -168,6 +168,7 @@ void initDynamicMetaObject(SbkObjectType* type, const QMetaObject* base, const s
     //create DynamicMetaObject based on python type
     TypeUserData* userData = new TypeUserData(reinterpret_cast<PyTypeObject*>(type), base);
     userData->cppObjSize = cppObjSize;
+    userData->mo.update();
     Shiboken::ObjectType::setTypeUserData(type, userData, Shiboken::callCppDestructor<TypeUserData>);
 
     //initialize staticQMetaObject property
@@ -196,6 +197,7 @@ void initQObjectSubType(SbkObjectType* type, PyObject* args, PyObject* kwds)
         if (PyType_IsSubtype(base, qObjType)) {
             baseMo = reinterpret_cast<QMetaObject*>(Shiboken::ObjectType::getTypeUserData(reinterpret_cast<SbkObjectType*>(base)));
             qobjBase = reinterpret_cast<SbkObjectType*>(base);
+            reinterpret_cast<DynamicQMetaObject*>(baseMo)->update();
             break;
         }
     }
@@ -216,9 +218,9 @@ PyObject* getMetaDataFromQObject(QObject* cppSelf, PyObject* self, PyObject* nam
 
     if (attr && Property::isPropertyType(attr)) {
         PyObject *value = Property::getValue(reinterpret_cast<PySideProperty*>(attr), self);
+        Py_DECREF(attr);
         if (!value)
             return 0;
-        Py_DECREF(attr);
         Py_INCREF(value);
         attr = value;
     }
diff --git a/libpyside/signalmanager.cpp b/libpyside/signalmanager.cpp
index bbbc1d3f0..b24d0b97e 100644
--- a/libpyside/signalmanager.cpp
+++ b/libpyside/signalmanager.cpp
@@ -25,6 +25,7 @@
 #include "pysideproperty.h"
 #include "pysideproperty_p.h"
 #include "pyside.h"
+#include "dynamicqmetaobject.h"
 
 #include <QHash>
 #include <QStringList>
@@ -46,6 +47,14 @@
 
 #define PYTHON_TYPE "PyObject"
 
+namespace {
+    static PyObject *metaObjectAttr = 0;
+    static void destroyMetaObject(void* obj)
+    {
+        delete reinterpret_cast<PySide::DynamicQMetaObject*>(obj);
+    }
+}
+
 namespace PySide {
 
 static int callMethod(QObject* object, int id, void** args);
@@ -189,6 +198,9 @@ SignalManager::SignalManager() : m_d(new SignalManagerPrivate)
     TypeResolver::createValueTypeResolver<PyObjectWrapper>("object");
     TypeResolver::createValueTypeResolver<PyObjectWrapper>("PySide::PyObjectWrapper");
     PySide::registerCleanupFunction(clearSignalManager);
+
+    if (!metaObjectAttr)
+        metaObjectAttr = PyString_FromString("__METAOBJECT__");
 }
 
 void SignalManager::clear()
@@ -225,7 +237,12 @@ void SignalManager::globalReceiverDisconnectNotify(QObject* source, int slotInde
 
 void SignalManager::addGlobalSlot(const char* slot, PyObject* callback)
 {
-    m_d->m_globalReceiver.addSlot(slot, callback);
+    addGlobalSlotGetIndex(slot, callback);
+}
+
+int SignalManager::addGlobalSlotGetIndex(const char* slot, PyObject* callback)
+{
+    return m_d->m_globalReceiver.addSlot(slot, callback);
 }
 
 static bool emitShortCircuitSignal(QObject* source, int signalIndex, PyObject* args)
@@ -412,9 +429,14 @@ static int PySide::callMethod(QObject* object, int id, void** args)
     }
     return -1;
 }
-
 bool SignalManager::registerMetaMethod(QObject* source, const char* signature, QMetaMethod::MethodType type)
 {
+    int ret = registerMetaMethodGetIndex(source, signature, type);
+    return (ret != -1);
+}
+
+int SignalManager::registerMetaMethodGetIndex(QObject* source, const char* signature, QMetaMethod::MethodType type)
+{
     Q_ASSERT(source);
     const QMetaObject* metaObject = source->metaObject();
     int methodIndex = metaObject->indexOfMethod(signature);
@@ -423,19 +445,51 @@ bool SignalManager::registerMetaMethod(QObject* source, const char* signature, Q
         SbkObject* self = Shiboken::BindingManager::instance().retrieveWrapper(source);
         if (!Shiboken::Object::hasCppWrapper(self)) {
             qWarning() << "Invalid Signal signature:" << signature;
-            return false;
+            return -1;
         } else {
-            PySide::DynamicQMetaObject* dynMetaObj = reinterpret_cast<PySide::DynamicQMetaObject*>(const_cast<QMetaObject*>(metaObject));
+            DynamicQMetaObject *dmo = 0;
+            PyObject *pySelf = reinterpret_cast<PyObject*>(self);
+            PyObject* dict = self->ob_dict;
+
+            // Create a instance meta object
+            if (!dict || !PyDict_Contains(dict, metaObjectAttr)) {
+                dmo = new DynamicQMetaObject(pySelf->ob_type, metaObject);
+                PyObject *pyDmo = PyCObject_FromVoidPtr(dmo, destroyMetaObject);
+                PyObject_SetAttr(pySelf, metaObjectAttr, pyDmo);
+                Py_DECREF(pyDmo);
+            } else {
+                dmo = reinterpret_cast<DynamicQMetaObject*>(const_cast<QMetaObject*>(metaObject));
+            }
+
             if (type == QMetaMethod::Signal)
-                dynMetaObj->addSignal(signature);
+                return dmo->addSignal(signature);
             else
-                dynMetaObj->addSlot(signature);
+                return dmo->addSlot(signature);
         }
     }
-    return true;
+    return methodIndex;
 }
 
 bool SignalManager::hasConnectionWith(const QObject *object)
 {
     return m_d->m_globalReceiver.hasConnectionWith(object);
 }
+
+const QMetaObject* SignalManager::retriveMetaObject(PyObject *self)
+{
+    Shiboken::GilState gil;
+    DynamicQMetaObject *mo = 0;
+    Q_ASSERT(self);
+
+    PyObject* dict = reinterpret_cast<SbkObject*>(self)->ob_dict;
+    if (dict && PyDict_Contains(dict, metaObjectAttr)) {
+        PyObject *pyMo = PyDict_GetItem(dict, metaObjectAttr);
+        mo = reinterpret_cast<DynamicQMetaObject*>(PyCObject_AsVoidPtr(pyMo));
+    } else {
+        mo = reinterpret_cast<DynamicQMetaObject*>(Shiboken::Object::getTypeUserData(reinterpret_cast<SbkObject*>(self)));
+    }
+
+    mo->update();
+    return mo;
+}
+
diff --git a/libpyside/signalmanager.h b/libpyside/signalmanager.h
index 5ea1366f0..b1b798600 100644
--- a/libpyside/signalmanager.h
+++ b/libpyside/signalmanager.h
@@ -62,12 +62,17 @@ public:
 
     static int qt_metacall(QObject* object, QMetaObject::Call call, int id, void** args);
     void addGlobalSlot(const char* slot, PyObject* callback);
+    int addGlobalSlotGetIndex(const char* slot, PyObject* callback);
 
     void globalReceiverConnectNotify(QObject *sender, int slotIndex);
     void globalReceiverDisconnectNotify(QObject *sender, int slotIndex);
 
     // Used to register a new signal/slot on QMetaobject of source.
     static bool registerMetaMethod(QObject* source, const char* signature, QMetaMethod::MethodType type);
+    static int registerMetaMethodGetIndex(QObject* source, const char* signature, QMetaMethod::MethodType type);
+
+    // used to discovery metaobject
+    static const QMetaObject* retriveMetaObject(PyObject* self);
 
     // Used to discovery if SignalManager was connected with object "destroyed()" signal.
     bool hasConnectionWith(const QObject *object);