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// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "customwidget.h"
#include <QtCore/qdebug.h>
// Part of the static plugin linked to the QtUiLoader Python module,
// allowing it to create a custom widget written in Python.
PyCustomWidget::PyCustomWidget(PyObject *objectType) :
m_pyObject(objectType),
m_name(QString::fromUtf8(reinterpret_cast<PyTypeObject *>(objectType)->tp_name))
{
}
bool PyCustomWidget::isContainer() const
{
return false;
}
bool PyCustomWidget::isInitialized() const
{
return m_initialized;
}
QIcon PyCustomWidget::icon() const
{
return {};
}
QString PyCustomWidget::domXml() const
{
return {};
}
QString PyCustomWidget::group() const
{
return {};
}
QString PyCustomWidget::includeFile() const
{
return {};
}
QString PyCustomWidget::name() const
{
return m_name;
}
QString PyCustomWidget::toolTip() const
{
return {};
}
QString PyCustomWidget::whatsThis() const
{
return {};
}
// A copy of this code exists in PyDesignerCustomWidget::createWidget()
// (see sources/pyside6/PySide6/QtDesigner/qpydesignercustomwidgetcollection.cpp).
QWidget *PyCustomWidget::createWidget(QWidget *parent)
{
// Create a python instance and return cpp object
PyObject *pyParent = nullptr;
bool unknownParent = false;
if (parent != nullptr) {
pyParent = reinterpret_cast<PyObject *>(Shiboken::BindingManager::instance().retrieveWrapper(parent));
if (pyParent != nullptr) {
Py_INCREF(pyParent);
} else {
static Shiboken::Conversions::SpecificConverter converter("QWidget*");
pyParent = converter.toPython(&parent);
unknownParent = true;
}
} else {
Py_INCREF(Py_None);
pyParent = Py_None;
}
Shiboken::AutoDecRef pyArgs(PyTuple_New(1));
PyTuple_SET_ITEM(pyArgs.object(), 0, pyParent); // tuple will keep pyParent reference
// Call python constructor
auto *result = reinterpret_cast<SbkObject *>(PyObject_CallObject(m_pyObject, pyArgs));
if (result == nullptr) {
qWarning("Unable to create a Python custom widget of type \"%s\".",
qPrintable(m_name));
PyErr_Print();
return nullptr;
}
if (unknownParent) // if parent does not exist in python, transfer the ownership to cpp
Shiboken::Object::releaseOwnership(result);
else
Shiboken::Object::setParent(pyParent, reinterpret_cast<PyObject *>(result));
return reinterpret_cast<QWidget *>(Shiboken::Object::cppPointer(result, Py_TYPE(result)));
}
void PyCustomWidget::initialize(QDesignerFormEditorInterface *)
{
m_initialized = true;
}
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