Hi,
I have been experiencing issues when emitting a signal with a QVariant
signature containing a Python object. The issue seems to stem from the
Chimera::Storage::address() function which returns the data part of the
QVariant even if the wrapped object used to be a QVariant itself. I have
attached a test case and a patch against PyQt 4.8.2-bb053c0310a3 nightly
which fixes the issue for me.
--
Philip Lorenz
from PyQt4.QtCore import *
import sip
class VariantTest(QObject):
valueChanged = pyqtSignal((QVariant, QString))
def __init__(self):
QObject.__init__(self)
self._obj = object()
def fire(self):
self.valueChanged.emit(self._obj, "Abc")
def recv(self, variant, string):
print variant.toPyObject(), string
app = QCoreApplication([])
a = VariantTest()
b = VariantTest()
a.valueChanged.connect(b.recv)
a.fire()
app.exec_()diff -Naur
PyQt-x11-gpl-snapshot-4.8.2-bb053c0310a3.orig//qpy/QtCore/qpycore_chimera_storage.cpp
PyQt-x11-gpl-snapshot-4.8.2-bb053c0310a3/qpy/QtCore/qpycore_chimera_storage.cpp
---
PyQt-x11-gpl-snapshot-4.8.2-bb053c0310a3.orig//qpy/QtCore/qpycore_chimera_storage.cpp
2010-11-20 14:05:21.000000000 +0100
+++
PyQt-x11-gpl-snapshot-4.8.2-bb053c0310a3/qpy/QtCore/qpycore_chimera_storage.cpp
2010-11-20 14:06:20.000000000 +0100
@@ -85,7 +85,10 @@
void *Chimera::Storage::address()
{
if (!isPointerType())
- return _value_storage.data();
+ if (_parsed_type->typeDef() == sipType_QVariant)
+ return &_value_storage;
+ else
+ return _value_storage.data();
if (_parsed_type->name().endsWith('*'))
return &_ptr_storage;
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