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Diffstat (limited to 'sources/pyside6/libpyside/pysideslot.cpp')
| -rw-r--r-- | sources/pyside6/libpyside/pysideslot.cpp | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/sources/pyside6/libpyside/pysideslot.cpp b/sources/pyside6/libpyside/pysideslot.cpp new file mode 100644 index 000000000..99c3cdf55 --- /dev/null +++ b/sources/pyside6/libpyside/pysideslot.cpp @@ -0,0 +1,199 @@ +/**************************************************************************** +** +** 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 "dynamicqmetaobject_p.h" +#include "pysidesignal_p.h" +#include "pysideslot_p.h" + +#include <shiboken.h> + +#include <QtCore/QMetaObject> +#include <QtCore/QString> +#include <signature.h> + +using namespace Shiboken; + +struct SlotData +{ + QByteArray name; + QByteArray args; + QByteArray resultType; +}; + +typedef struct +{ + PyObject_HEAD + SlotData *slotData; +} PySideSlot; + +extern "C" +{ + +static int slotTpInit(PyObject *, PyObject *, PyObject *); +static PyObject *slotCall(PyObject *, PyObject *, PyObject *); + +// Class Definition ----------------------------------------------- +static PyType_Slot PySideSlotType_slots[] = { + {Py_tp_call, (void *)slotCall}, + {Py_tp_init, (void *)slotTpInit}, + {Py_tp_new, (void *)PyType_GenericNew}, + {Py_tp_dealloc, (void *)Sbk_object_dealloc}, + {0, 0} +}; +static PyType_Spec PySideSlotType_spec = { + "2:PySide6.QtCore.Slot", + sizeof(PySideSlot), + 0, + Py_TPFLAGS_DEFAULT, + PySideSlotType_slots, +}; + + +static PyTypeObject *PySideSlotTypeF(void) +{ + static PyTypeObject *type = reinterpret_cast<PyTypeObject *>( + SbkType_FromSpec(&PySideSlotType_spec)); + return type; +} + +int slotTpInit(PyObject *self, PyObject *args, PyObject *kw) +{ + static PyObject *emptyTuple = nullptr; + static const char *kwlist[] = {"name", "result", nullptr}; + char *argName = nullptr; + PyObject *argResult = nullptr; + + if (emptyTuple == 0) + emptyTuple = PyTuple_New(0); + + if (!PyArg_ParseTupleAndKeywords(emptyTuple, kw, "|sO:QtCore.Slot", + const_cast<char **>(kwlist), &argName, &argResult)) { + return -1; + } + + PySideSlot *data = reinterpret_cast<PySideSlot *>(self); + if (!data->slotData) + data->slotData = new SlotData; + for(Py_ssize_t i = 0, i_max = PyTuple_Size(args); i < i_max; i++) { + PyObject *argType = PyTuple_GET_ITEM(args, i); + const auto typeName = PySide::Signal::getTypeName(argType); + if (typeName.isEmpty()) { + PyErr_Format(PyExc_TypeError, "Unknown signal argument type: %s", Py_TYPE(argType)->tp_name); + return -1; + } + if (!data->slotData->args.isEmpty()) + data->slotData->args += ','; + data->slotData->args += typeName; + } + + if (argName) + data->slotData->name = argName; + + data->slotData->resultType = argResult + ? PySide::Signal::getTypeName(argResult) : PySide::Signal::voidType(); + + return 0; +} + +PyObject *slotCall(PyObject *self, PyObject *args, PyObject * /* kw */) +{ + static PyObject *pySlotName = nullptr; + PyObject *callback; + callback = PyTuple_GetItem(args, 0); + Py_INCREF(callback); + + if (Py_TYPE(callback)->tp_call != nullptr) { + PySideSlot *data = reinterpret_cast<PySideSlot *>(self); + + if (!data->slotData) + data->slotData = new SlotData; + + if (data->slotData->name.isEmpty()) { + // PYSIDE-198: Use PyObject_GetAttr instead of PepFunction_GetName to support Nuitka. + AutoDecRef funcName(PyObject_GetAttr(callback, PyMagicName::name())); + data->slotData->name = String::toCString(funcName); + } + const QByteArray returnType = QMetaObject::normalizedType(data->slotData->resultType); + const QByteArray signature = + returnType + ' ' + data->slotData->name + '(' + data->slotData->args + ')'; + + if (!pySlotName) + pySlotName = String::fromCString(PYSIDE_SLOT_LIST_ATTR); + + PyObject *pySignature = String::fromCString(signature); + PyObject *signatureList = 0; + if (PyObject_HasAttr(callback, pySlotName)) { + signatureList = PyObject_GetAttr(callback, pySlotName); + } else { + signatureList = PyList_New(0); + PyObject_SetAttr(callback, pySlotName, signatureList); + Py_DECREF(signatureList); + } + + PyList_Append(signatureList, pySignature); + Py_DECREF(pySignature); + + //clear data + delete data->slotData; + data->slotData = nullptr; + return callback; + } + return callback; +} + +} // extern "C" + +namespace PySide { +namespace Slot { + +static const char *Slot_SignatureStrings[] = { + "PySide6.QtCore.Slot(*types:type,name:str=nullptr,result:str=nullptr)->typing.Callable[...,typing.Optional[str]]", + nullptr}; // Sentinel + +void init(PyObject *module) +{ + if (InitSignatureStrings(PySideSlotTypeF(), Slot_SignatureStrings) < 0) + return; + + Py_INCREF(PySideSlotTypeF()); + PyModule_AddObject(module, "Slot", reinterpret_cast<PyObject *>(PySideSlotTypeF())); +} + +} // namespace Slot +} // namespace PySide |
