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Diffstat (limited to 'sources/pyside6/PySide6/QtQuick/pysidequickregistertype.cpp')
| -rw-r--r-- | sources/pyside6/PySide6/QtQuick/pysidequickregistertype.cpp | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/sources/pyside6/PySide6/QtQuick/pysidequickregistertype.cpp b/sources/pyside6/PySide6/QtQuick/pysidequickregistertype.cpp new file mode 100644 index 000000000..fdc1a5656 --- /dev/null +++ b/sources/pyside6/PySide6/QtQuick/pysidequickregistertype.cpp @@ -0,0 +1,211 @@ +/**************************************************************************** +** +** 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 +} |