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/*
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*
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* Copyright (C) 2006 MeVis Research GmbH All Rights Reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* Further, this software is distributed without any warranty that it is
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* free of the rightful claim of any third person regarding infringement
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* or the like. Any license provided herein, whether implied or
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* otherwise, applies only to this software file. Patent licenses, if
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* any, provided herein do not apply to combinations of this program with
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* other software, or any other product whatsoever.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Contact information: MeVis Research GmbH, Universitaetsallee 29,
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* 28359 Bremen, Germany or:
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*
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* http://www.mevis.de
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*
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*/
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//----------------------------------------------------------------------------------
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/*!
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// \file PythonQtClassWrapper.cpp
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// \author Florian Link
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// \author Last changed by $Author: florian $
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// \date 2006-05
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*/
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//----------------------------------------------------------------------------------
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#include "PythonQtClassWrapper.h"
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#include <QObject>
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#include "PythonQt.h"
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#include "PythonQtSlot.h"
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#include "PythonQtClassInfo.h"
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#include "PythonQtConversion.h"
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#include "PythonQtInstanceWrapper.h"
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static PyObject* PythonQtClassWrapper_alloc(PyTypeObject *self, Py_ssize_t nitems)
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{
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// call the default type alloc
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PyObject* obj = PyType_Type.tp_alloc(self, nitems);
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// take current class type, if we are called via newPythonQtClassWrapper()
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PythonQtClassWrapper* wrap = (PythonQtClassWrapper*)obj;
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wrap->_classInfo = PythonQt::priv()->currentClassInfoForClassWrapperCreation();
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return obj;
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}
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static int PythonQtClassWrapper_init(PythonQtClassWrapper* self, PyObject* args, PyObject* kwds)
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{
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// call the default type init
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if (PyType_Type.tp_init((PyObject *)self, args, kwds) < 0) {
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return -1;
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}
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// if we have no CPP class information, try our base class
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if (!self->classInfo()) {
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PyTypeObject* superType = ((PyTypeObject *)self)->tp_base;
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if (!superType || (superType->ob_type != &PythonQtClassWrapper_Type)) {
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PyErr_Format(PyExc_TypeError, "type %s is not derived from PythonQtClassWrapper", ((PyTypeObject*)self)->tp_name);
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return -1;
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}
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// take the class info from the superType
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self->_classInfo = ((PythonQtClassWrapper*)superType)->classInfo();
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}
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return 0;
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}
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static PyObject *PythonQtClassWrapper_classname(PythonQtClassWrapper* type)
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{
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return PyString_FromString((QString("Class_") + type->classInfo()->className()).toLatin1().data());
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}
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static PyObject *PythonQtClassWrapper_help(PythonQtClassWrapper* type)
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{
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return PythonQt::self()->helpCalled(type->classInfo());
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}
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PyObject *PythonQtClassWrapper__init__(PythonQtClassWrapper *type, PyObject *args)
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{
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Py_ssize_t argc = PyTuple_Size(args);
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if (argc>0) {
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// we need to call __init__ of the instance
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PyObject* self = PyTuple_GET_ITEM(args, 0);
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if (PyObject_TypeCheck(self, (PyTypeObject*)type->classInfo()->pythonQtClassWrapper())) {
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PyObject* newargs = PyTuple_New(argc-1);
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for (int i = 0;i<argc-1; i++) {
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PyTuple_SET_ITEM(newargs, i,PyTuple_GET_ITEM(args, i+1));
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}
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PythonQtInstanceWrapper* wrapper = (PythonQtInstanceWrapper*)self;
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int result = PythonQtInstanceWrapper_init(wrapper, newargs, NULL);
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Py_DECREF(newargs);
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if (result==0) {
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Py_INCREF(Py_None);
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return Py_None;
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} else {
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// init failed!
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}
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} else {
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// self not of correct type!
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}
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} else {
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// wrong number of args
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}
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return NULL;
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}
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static PyMethodDef PythonQtClassWrapper_methods[] = {
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{"__init__", (PyCFunction)PythonQtClassWrapper__init__, METH_VARARGS,
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"Return the classname of the object"
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},
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{"className", (PyCFunction)PythonQtClassWrapper_classname, METH_NOARGS,
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"Return the classname of the object"
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},
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{"help", (PyCFunction)PythonQtClassWrapper_help, METH_NOARGS,
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"Shows the help of available methods for this class"
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},
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{NULL, NULL, 0 , NULL} /* Sentinel */
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};
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static PyObject *PythonQtClassWrapper_getattro(PyObject *obj, PyObject *name)
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{
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const char *attributeName;
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PythonQtClassWrapper *wrapper = (PythonQtClassWrapper *)obj;
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if ((attributeName = PyString_AsString(name)) == NULL) {
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return NULL;
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}
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if (obj == (PyObject*)&PythonQtInstanceWrapper_Type) {
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return NULL;
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}
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if (qstrcmp(attributeName, "__dict__")==0) {
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PyObject* dict = ((PyTypeObject *)wrapper)->tp_dict;
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if (!wrapper->classInfo()) {
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Py_INCREF(dict);
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return dict;
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}
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dict = PyDict_Copy(dict);
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QStringList l = wrapper->classInfo()->memberList(false);
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foreach (QString name, l) {
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PyObject* o = PyObject_GetAttrString(obj, name.toLatin1().data());
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if (o) {
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PyDict_SetItemString(dict, name.toLatin1().data(), o);
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Py_DECREF(o);
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} else {
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// it must have been a property or child, which we do not know as a class object...
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}
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}
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if (wrapper->classInfo()->constructors()) {
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PyObject* func = PyCFunction_New(&PythonQtClassWrapper_methods[0], obj);
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PyDict_SetItemString(dict, "__init__", func);
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Py_DECREF(func);
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}
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for (int i = 1;i<3;i++) {
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PyObject* func = PyCFunction_New(&PythonQtClassWrapper_methods[i], obj);
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PyDict_SetItemString(dict, PythonQtClassWrapper_methods[i].ml_name, func);
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Py_DECREF(func);
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}
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return dict;
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}
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if (wrapper->classInfo()) {
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PythonQtMemberInfo member = wrapper->classInfo()->member(attributeName);
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if (member._type == PythonQtMemberInfo::EnumValue) {
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PyObject* enumValue = member._enumValue;
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Py_INCREF(enumValue);
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return enumValue;
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} else if (member._type == PythonQtMemberInfo::EnumWrapper) {
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PyObject* enumWrapper = member._enumWrapper;
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Py_INCREF(enumWrapper);
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return enumWrapper;
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} else if (member._type == PythonQtMemberInfo::Slot) {
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// we return all slots, even the instance slots, since they are callable as unbound slots with self argument
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return PythonQtSlotFunction_New(member._slot, obj, NULL);
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}
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}
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// look for the interal methods (className(), help())
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PyObject* internalMethod = Py_FindMethod( PythonQtClassWrapper_methods, obj, (char*)attributeName);
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if (internalMethod) {
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return internalMethod;
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}
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PyErr_Clear();
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// look in super
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PyObject* superAttr = PyType_Type.tp_getattro(obj, name);
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if (superAttr) {
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return superAttr;
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}
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QString error = QString(wrapper->classInfo()->className()) + " has no attribute named '" + QString(attributeName) + "'";
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PyErr_SetString(PyExc_AttributeError, error.toLatin1().data());
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return NULL;
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}
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static int PythonQtClassWrapper_setattro(PyObject *obj,PyObject *name,PyObject *value)
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{
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return PyType_Type.tp_setattro(obj,name,value);
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}
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/*
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static PyObject * PythonQtClassWrapper_repr(PyObject * obj)
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{
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PythonQtClassWrapper* wrapper = (PythonQtClassWrapper*)obj;
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if (wrapper->classInfo()->isCPPWrapper()) {
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const QMetaObject* meta = wrapper->classInfo()->metaObject();
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if (!meta) {
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QObject* decorator = wrapper->classInfo()->decorator();
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if (decorator) {
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meta = decorator->metaObject();
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}
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}
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if (meta) {
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return PyString_FromFormat("%s Class (C++ wrapped by %s)", wrapper->classInfo()->className(), meta->className());
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} else {
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return PyString_FromFormat("%s Class (C++ unwrapped)", wrapper->classInfo()->className());
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}
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} else {
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return PyString_FromFormat("%s Class", wrapper->classInfo()->className());
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}
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}
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*/
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PyTypeObject PythonQtClassWrapper_Type = {
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PyObject_HEAD_INIT(NULL)
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0, /*ob_size*/
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"PythonQt.PythonQtClassWrapper", /*tp_name*/
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sizeof(PythonQtClassWrapper), /*tp_basicsize*/
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0, /*tp_itemsize*/
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0, /*tp_dealloc*/
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0, /*tp_print*/
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0, /*tp_getattr*/
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0, /*tp_setattr*/
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0, /*tp_compare*/
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0, //PythonQtClassWrapper_repr, /*tp_repr*/
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0, /*tp_as_number*/
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0, /*tp_as_sequence*/
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0, /*tp_as_mapping*/
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0, /*tp_hash */
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0, /*tp_call*/
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0, /*tp_str*/
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PythonQtClassWrapper_getattro, /*tp_getattro*/
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PythonQtClassWrapper_setattro, /*tp_setattro*/
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0, /*tp_as_buffer*/
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Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
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0, /* tp_doc */
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0, /* tp_traverse */
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0, /* tp_clear */
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0, /* tp_richcompare */
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0, /* tp_weaklistoffset */
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0, /* tp_iter */
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0, /* tp_iternext */
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0, /* tp_methods */
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0, /* tp_members */
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0, /* tp_getset */
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0, /* tp_base */
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0, /* tp_dict */
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0, /* tp_descr_get */
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0, /* tp_descr_set */
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0, /* tp_dictoffset */
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(initproc)PythonQtClassWrapper_init, /* tp_init */
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PythonQtClassWrapper_alloc, /* tp_alloc */
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0, /* tp_new */
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0, /* tp_free */
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};
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//-------------------------------------------------------
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