From 26e45be10730d10f9d04b1c6548ac545106ce643 Mon Sep 17 00:00:00 2001
From: Renato Filho <renato.filho@openbossa.org>
Date: Wed, 27 Apr 2011 15:02:38 -0300
Subject: Implemented stream operator for PyObjectWrapper.

Fixes bug #829.

Reviewer: Marcelo Lira <marcelo.lira@openbossa.org>
          Hugo Parente Lima <hugo.pl@gmail.com>
---
 libpyside/signalmanager.cpp | 42 ++++++++++++++++++++++++++++++++++++++++++
 libpyside/signalmanager.h   |  4 ++++
 2 files changed, 46 insertions(+)

diff --git a/libpyside/signalmanager.cpp b/libpyside/signalmanager.cpp
index 16fac5415..6ab84561f 100644
--- a/libpyside/signalmanager.cpp
+++ b/libpyside/signalmanager.cpp
@@ -87,6 +87,47 @@ PyObjectWrapper::operator PyObject*() const
     return m_me;
 }
 
+QDataStream &operator<<(QDataStream &out, const PyObjectWrapper &myObj)
+{
+    static PyObject *reduce_func  = 0;
+
+    Shiboken::GilState gil;
+    if (!reduce_func) {
+        Shiboken::AutoDecRef pickleModule(PyImport_ImportModule("pickle"));
+        reduce_func = PyObject_GetAttrString(pickleModule, "dumps");
+    }
+    Shiboken::AutoDecRef repr(PyObject_CallFunctionObjArgs(reduce_func, (PyObject*)myObj, NULL));
+    if (repr.object()) {
+        char* buff;
+        Py_ssize_t size;
+        PyString_AsStringAndSize(repr.object(), &buff, &size);
+        QByteArray data(buff, size);
+        out << data;
+    }
+    return out;
+}
+
+QDataStream &operator>>(QDataStream &in, PyObjectWrapper &myObj)
+{
+    static PyObject *eval_func  = 0;
+
+    Shiboken::GilState gil;
+    if (!eval_func) {
+        Shiboken::AutoDecRef pickleModule(PyImport_ImportModule("pickle"));
+        eval_func = PyObject_GetAttrString(pickleModule, "loads");
+    }
+
+    QByteArray repr;
+    in >> repr;
+    Shiboken::AutoDecRef pyCode(PyString_FromStringAndSize(repr.data(), repr.size()));
+    Shiboken::AutoDecRef value(PyObject_CallFunctionObjArgs(eval_func, pyCode.object(), 0));
+    if (!value.object()) {
+        value = Py_None;
+    }
+    myObj = PyObjectWrapper(value);
+    return in;
+}
+
 };
 
 namespace Shiboken {
@@ -132,6 +173,7 @@ SignalManager::SignalManager() : m_d(new SignalManagerPrivate)
 
     // Register PyObject type to use in queued signal and slot connections
     qRegisterMetaType<PyObjectWrapper>(PYTHON_TYPE);
+    qRegisterMetaTypeStreamOperators<PyObjectWrapper>(PYTHON_TYPE);
 
     TypeResolver::createValueTypeResolver<PyObjectWrapper>(PYTHON_TYPE);
     TypeResolver::createValueTypeResolver<PyObjectWrapper>("object");
diff --git a/libpyside/signalmanager.h b/libpyside/signalmanager.h
index f6ce1fb0c..5ea1366f0 100644
--- a/libpyside/signalmanager.h
+++ b/libpyside/signalmanager.h
@@ -28,6 +28,7 @@
 #include <Qt>
 #include <QStringList>
 #include <QMetaMethod>
+#include <QMetaType>
 
 class QObject;
 
@@ -49,6 +50,9 @@ private:
     void*     m_data; //future
 };
 
+PYSIDE_API QDataStream &operator<<(QDataStream& out, const PyObjectWrapper& myObj);
+PYSIDE_API QDataStream &operator>>(QDataStream& in, PyObjectWrapper& myObj);
+
 class PYSIDE_API SignalManager
 {
 public:
-- 
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