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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt for Python.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "pysidequickregistertype.h"
#include <pyside.h>
#include <pyside_p.h>
#include <shiboken.h>
// Auto generated headers.
#include "qquickitem_wrapper.h"
#include "qquickpainteditem_wrapper.h"
#include "qquickframebufferobject_wrapper.h"
#include "pyside6_qtcore_python.h"
#include "pyside6_qtquick_python.h"
#include "pyside6_qtqml_python.h"
// Mutex used to avoid race condition on PySide::nextQObjectMemoryAddr.
static QMutex nextQmlElementMutex;
static void createQuickItem(void *memory, void *type)
{
QMutexLocker locker(&nextQmlElementMutex);
PySide::setNextQObjectMemoryAddr(memory);
Shiboken::GilState state;
PyObject *obj = PyObject_CallObject(reinterpret_cast<PyObject *>(type), 0);
if (!obj || PyErr_Occurred())
PyErr_Print();
PySide::setNextQObjectMemoryAddr(0);
}
#define PY_REGISTER_IF_INHERITS_FROM(className, typeToRegister,typePointerName, \
typeListName, typeMetaObject, type, registered) \
registerTypeIfInheritsFromClass<className##Wrapper>(#className, typeToRegister, \
typePointerName, typeListName, \
typeMetaObject, type, registered)
bool pyTypeObjectInheritsFromClass(PyTypeObject *pyObjType, QByteArray className)
{
className.append('*');
PyTypeObject *classPyType = Shiboken::Conversions::getPythonTypeObject(className.constData());
bool isDerived = PySequence_Contains(pyObjType->tp_mro,
reinterpret_cast<PyObject *>(classPyType));
return isDerived;
}
template <typename T>
struct QPysideQmlMetaTypeInterface : QtPrivate::QMetaTypeInterface
{
const QByteArray name;
QPysideQmlMetaTypeInterface(const QByteArray &name, const QMetaObject *metaObject = nullptr)
: QMetaTypeInterface {
/*.revision=*/ 0,
/*.alignment=*/ alignof(T),
/*.size=*/ sizeof(T),
/*.flags=*/ QtPrivate::QMetaTypeTypeFlags<T>::Flags,
/*.typeId=*/ 0,
/*.metaObject=*/ metaObject,
/*.name=*/ name.constData(),
/*.defaultCtr=*/ [](const QMetaTypeInterface *, void *addr) { new (addr) T(); },
/*.copyCtr=*/ [](const QMetaTypeInterface *, void *addr, const void *other) {
new (addr) T(*reinterpret_cast<const T *>(other));
},
/*.moveCtr=*/ [](const QMetaTypeInterface *, void *addr, void *other) {
new (addr) T(std::move(*reinterpret_cast<T *>(other)));
},
/*.dtor=*/ [](const QMetaTypeInterface *, void *addr) {
reinterpret_cast<T *>(addr)->~T();
},
/*.equals=*/ nullptr,
/*.lessThan=*/ nullptr,
/*.debugStream=*/ nullptr,
/*.dataStreamOut=*/ nullptr,
/*.dataStreamIn=*/ nullptr,
/*.legacyRegisterOp=*/ nullptr
}
, name(name) {}
};
template <class WrapperClass>
void registerTypeIfInheritsFromClass(
QByteArray className,
PyTypeObject *typeToRegister,
const QByteArray &typePointerName,
const QByteArray &typeListName,
const QMetaObject *typeMetaObject,
QQmlPrivate::RegisterType *type,
bool ®istered)
{
bool shouldRegister = !registered && pyTypeObjectInheritsFromClass(typeToRegister, className);
if (shouldRegister) {
QMetaType ptrType(new QPysideQmlMetaTypeInterface<WrapperClass *>(typePointerName, typeMetaObject));
QMetaType lstType(new QPysideQmlMetaTypeInterface<QQmlListProperty<WrapperClass>>(typeListName));
type->typeId = std::move(ptrType);
type->listId = std::move(lstType);
type->attachedPropertiesFunction = QQmlPrivate::attachedPropertiesFunc<WrapperClass>();
type->attachedPropertiesMetaObject =
QQmlPrivate::attachedPropertiesMetaObject<WrapperClass>();
type->parserStatusCast =
QQmlPrivate::StaticCastSelector<WrapperClass, QQmlParserStatus>::cast();
type->valueSourceCast =
QQmlPrivate::StaticCastSelector<WrapperClass, QQmlPropertyValueSource>::cast();
type->valueInterceptorCast =
QQmlPrivate::StaticCastSelector<WrapperClass, QQmlPropertyValueInterceptor>::cast();
type->objectSize = sizeof(WrapperClass);
registered = true;
}
}
bool quickRegisterType(PyObject *pyObj, const char *uri, int versionMajor, int versionMinor,
const char *qmlName, bool creatable, const char *noCreationReason, QQmlPrivate::RegisterType *type)
{
using namespace Shiboken;
PyTypeObject *pyObjType = reinterpret_cast<PyTypeObject *>(pyObj);
PyTypeObject *qQuickItemPyType =
Shiboken::Conversions::getPythonTypeObject("QQuickItem*");
bool isQuickItem = PySequence_Contains(pyObjType->tp_mro,
reinterpret_cast<PyObject *>(qQuickItemPyType));
// Register only classes that inherit QQuickItem or its children.
if (!isQuickItem)
return false;
// Used inside macros to register the type.
const QMetaObject *metaObject = PySide::retrieveMetaObject(pyObj);
Q_ASSERT(metaObject);
// Incref the type object, don't worry about decref'ing it because
// there's no way to unregister a QML type.
Py_INCREF(pyObj);
// Used in macro registration.
QByteArray pointerName(qmlName);
pointerName.append('*');
QByteArray listName(qmlName);
listName.prepend("QQmlListProperty<");
listName.append('>');
bool registered = false;
PY_REGISTER_IF_INHERITS_FROM(QQuickPaintedItem, pyObjType, pointerName, listName, metaObject,
type, registered);
PY_REGISTER_IF_INHERITS_FROM(QQuickFramebufferObject, pyObjType, pointerName, listName,
metaObject, type, registered);
PY_REGISTER_IF_INHERITS_FROM(QQuickItem, pyObjType, pointerName, listName, metaObject,
type, registered);
if (!registered)
return false;
type->structVersion = 0;
type->create = creatable ? createQuickItem : nullptr;
type->noCreationReason = noCreationReason;
type->userdata = pyObj;
type->uri = uri;
type->version = QTypeRevision::fromVersion(versionMajor, versionMinor);
type->elementName = qmlName;
type->metaObject = metaObject;
type->extensionObjectCreate = 0;
type->extensionMetaObject = 0;
type->customParser = 0;
return true;
}
void PySide::initQuickSupport(PyObject *module)
{
Q_UNUSED(module);
#ifdef PYSIDE_QML_SUPPORT
setQuickRegisterItemFunction(quickRegisterType);
#endif
}
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