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290 lines (259 loc) · 10.1 KB
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/*
*
* Copyright (C) 2006 MeVis Research GmbH All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Contact information: MeVis Research GmbH, Universitaetsallee 29,
* 28359 Bremen, Germany or:
*
* http://www.mevis.de
*
*/
//----------------------------------------------------------------------------------
/*!
// \file PythonQtClassWrapper.cpp
// \author Florian Link
// \author Last changed by $Author: florian $
// \date 2006-05
*/
//----------------------------------------------------------------------------------
#include "PythonQtClassWrapper.h"
#include <QObject>
#include "PythonQt.h"
#include "PythonQtSlot.h"
#include "PythonQtClassInfo.h"
#include "PythonQtConversion.h"
#include "PythonQtInstanceWrapper.h"
static PyObject* PythonQtClassWrapper_alloc(PyTypeObject *self, Py_ssize_t nitems)
{
// call the default type alloc
PyObject* obj = PyType_Type.tp_alloc(self, nitems);
// take current class type, if we are called via newPythonQtClassWrapper()
PythonQtClassWrapper* wrap = (PythonQtClassWrapper*)obj;
wrap->_classInfo = PythonQt::priv()->currentClassInfoForClassWrapperCreation();
return obj;
}
static int PythonQtClassWrapper_init(PythonQtClassWrapper* self, PyObject* args, PyObject* kwds)
{
// call the default type init
if (PyType_Type.tp_init((PyObject *)self, args, kwds) < 0) {
return -1;
}
// if we have no CPP class information, try our base class
if (!self->classInfo()) {
PyTypeObject* superType = ((PyTypeObject *)self)->tp_base;
if (!superType || (superType->ob_type != &PythonQtClassWrapper_Type)) {
PyErr_Format(PyExc_TypeError, "type %s is not derived from PythonQtClassWrapper", ((PyTypeObject*)self)->tp_name);
return -1;
}
// take the class info from the superType
self->_classInfo = ((PythonQtClassWrapper*)superType)->classInfo();
}
return 0;
}
static PyObject *PythonQtClassWrapper_classname(PythonQtClassWrapper* type)
{
return PyString_FromString((QString("Class_") + type->classInfo()->className()).toLatin1().data());
}
static PyObject *PythonQtClassWrapper_help(PythonQtClassWrapper* type)
{
return PythonQt::self()->helpCalled(type->classInfo());
}
PyObject *PythonQtClassWrapper__init__(PythonQtClassWrapper *type, PyObject *args)
{
Py_ssize_t argc = PyTuple_Size(args);
if (argc>0) {
// we need to call __init__ of the instance
PyObject* self = PyTuple_GET_ITEM(args, 0);
if (PyObject_TypeCheck(self, (PyTypeObject*)type->classInfo()->pythonQtClassWrapper())) {
PyObject* newargs = PyTuple_New(argc-1);
for (int i = 0;i<argc-1; i++) {
PyTuple_SET_ITEM(newargs, i,PyTuple_GET_ITEM(args, i+1));
}
PythonQtInstanceWrapper* wrapper = (PythonQtInstanceWrapper*)self;
int result = PythonQtInstanceWrapper_init(wrapper, newargs, NULL);
Py_DECREF(newargs);
if (result==0) {
Py_INCREF(Py_None);
return Py_None;
} else {
// init failed!
}
} else {
// self not of correct type!
}
} else {
// wrong number of args
}
return NULL;
}
static PyMethodDef PythonQtClassWrapper_methods[] = {
{"__init__", (PyCFunction)PythonQtClassWrapper__init__, METH_VARARGS,
"Return the classname of the object"
},
{"className", (PyCFunction)PythonQtClassWrapper_classname, METH_NOARGS,
"Return the classname of the object"
},
{"help", (PyCFunction)PythonQtClassWrapper_help, METH_NOARGS,
"Shows the help of available methods for this class"
},
{NULL, NULL, 0 , NULL} /* Sentinel */
};
static PyObject *PythonQtClassWrapper_getattro(PyObject *obj, PyObject *name)
{
const char *attributeName;
PythonQtClassWrapper *wrapper = (PythonQtClassWrapper *)obj;
if ((attributeName = PyString_AsString(name)) == NULL) {
return NULL;
}
if (obj == (PyObject*)&PythonQtInstanceWrapper_Type) {
return NULL;
}
if (qstrcmp(attributeName, "__dict__")==0) {
PyObject* dict = ((PyTypeObject *)wrapper)->tp_dict;
if (!wrapper->classInfo()) {
Py_INCREF(dict);
return dict;
}
dict = PyDict_Copy(dict);
QStringList l = wrapper->classInfo()->memberList(false);
foreach (QString name, l) {
PyObject* o = PyObject_GetAttrString(obj, name.toLatin1().data());
if (o) {
PyDict_SetItemString(dict, name.toLatin1().data(), o);
Py_DECREF(o);
} else {
// it must have been a property or child, which we do not know as a class object...
}
}
if (wrapper->classInfo()->constructors()) {
PyObject* func = PyCFunction_New(&PythonQtClassWrapper_methods[0], obj);
PyDict_SetItemString(dict, "__init__", func);
Py_DECREF(func);
}
for (int i = 1;i<3;i++) {
PyObject* func = PyCFunction_New(&PythonQtClassWrapper_methods[i], obj);
PyDict_SetItemString(dict, PythonQtClassWrapper_methods[i].ml_name, func);
Py_DECREF(func);
}
return dict;
}
if (wrapper->classInfo()) {
PythonQtMemberInfo member = wrapper->classInfo()->member(attributeName);
if (member._type == PythonQtMemberInfo::EnumValue) {
PyObject* enumValue = member._enumValue;
Py_INCREF(enumValue);
return enumValue;
} else if (member._type == PythonQtMemberInfo::EnumWrapper) {
PyObject* enumWrapper = member._enumWrapper;
Py_INCREF(enumWrapper);
return enumWrapper;
} else if (member._type == PythonQtMemberInfo::Slot) {
// we return all slots, even the instance slots, since they are callable as unbound slots with self argument
return PythonQtSlotFunction_New(member._slot, obj, NULL);
}
}
// look for the interal methods (className(), help())
PyObject* internalMethod = Py_FindMethod( PythonQtClassWrapper_methods, obj, (char*)attributeName);
if (internalMethod) {
return internalMethod;
}
PyErr_Clear();
// look in super
PyObject* superAttr = PyType_Type.tp_getattro(obj, name);
if (superAttr) {
return superAttr;
}
QString error = QString(wrapper->classInfo()->className()) + " has no attribute named '" + QString(attributeName) + "'";
PyErr_SetString(PyExc_AttributeError, error.toLatin1().data());
return NULL;
}
static int PythonQtClassWrapper_setattro(PyObject *obj,PyObject *name,PyObject *value)
{
return PyType_Type.tp_setattro(obj,name,value);
}
/*
static PyObject * PythonQtClassWrapper_repr(PyObject * obj)
{
PythonQtClassWrapper* wrapper = (PythonQtClassWrapper*)obj;
if (wrapper->classInfo()->isCPPWrapper()) {
const QMetaObject* meta = wrapper->classInfo()->metaObject();
if (!meta) {
QObject* decorator = wrapper->classInfo()->decorator();
if (decorator) {
meta = decorator->metaObject();
}
}
if (meta) {
return PyString_FromFormat("%s Class (C++ wrapped by %s)", wrapper->classInfo()->className(), meta->className());
} else {
return PyString_FromFormat("%s Class (C++ unwrapped)", wrapper->classInfo()->className());
}
} else {
return PyString_FromFormat("%s Class", wrapper->classInfo()->className());
}
}
*/
PyTypeObject PythonQtClassWrapper_Type = {
PyObject_HEAD_INIT(NULL)
0, /*ob_size*/
"PythonQt.PythonQtClassWrapper", /*tp_name*/
sizeof(PythonQtClassWrapper), /*tp_basicsize*/
0, /*tp_itemsize*/
0, /*tp_dealloc*/
0, /*tp_print*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_compare*/
0, //PythonQtClassWrapper_repr, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
0, /*tp_hash */
0, /*tp_call*/
0, /*tp_str*/
PythonQtClassWrapper_getattro, /*tp_getattro*/
PythonQtClassWrapper_setattro, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
0, /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
0, /* tp_methods */
0, /* tp_members */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
(initproc)PythonQtClassWrapper_init, /* tp_init */
PythonQtClassWrapper_alloc, /* tp_alloc */
0, /* tp_new */
0, /* tp_free */
};
//-------------------------------------------------------
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