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/* -*- Mode: C; c-set-style: python; c-basic-offset: 4 -*-
* pyglib - Python bindings for GLib toolkit.
* Copyright (C) 1998-2003 James Henstridge
* 2004-2008 Johan Dahlin
*
* 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <Python.h>
#include <pythread.h>
#include "pyglib.h"
#include "pygoptioncontext.h"
#include "pygoptiongroup.h"
/**
* pyg_option_group_transfer_group:
* @group: a GOptionGroup wrapper
*
* This is used to transfer the GOptionGroup to a GOptionContext. After this
* is called, the calle must handle the release of the GOptionGroup.
*
* When #NULL is returned, the GOptionGroup was already transfered.
*
* Returns: Either #NULL or the wrapped GOptionGroup.
*/
GOptionGroup *
pyglib_option_group_transfer_group(PyObject *obj)
{
PyGOptionGroup *self = (PyGOptionGroup*)obj;
if (self->is_in_context)
return NULL;
self->is_in_context = TRUE;
/* Here we increase the reference count of the PyGOptionGroup, because now
* the GOptionContext holds an reference to us (it is the userdata passed
* to g_option_group_new().
*
* The GOptionGroup is freed with the GOptionContext.
*
* We set it here because if we would do this in the init method we would
* hold two references and the PyGOptionGroup would never be freed.
*/
Py_INCREF(self);
return self->group;
}
/****** Private *****/
/**
* _pyglib_destroy_notify:
* @user_data: a PyObject pointer.
*
* A function that can be used as a GDestroyNotify callback that will
* call Py_DECREF on the data.
*/
void
_pyglib_destroy_notify(gpointer user_data)
{
PyObject *obj = (PyObject *)user_data;
PyGILState_STATE state;
state = pyglib_gil_state_ensure();
Py_DECREF(obj);
pyglib_gil_state_release(state);
}
gboolean
_pyglib_handler_marshal(gpointer user_data)
{
PyObject *tuple, *ret;
gboolean res;
PyGILState_STATE state;
g_return_val_if_fail(user_data != NULL, FALSE);
state = pyglib_gil_state_ensure();
tuple = (PyObject *)user_data;
ret = PyObject_CallObject(PyTuple_GetItem(tuple, 0),
PyTuple_GetItem(tuple, 1));
if (!ret) {
PyErr_Print();
res = FALSE;
} else {
res = PyObject_IsTrue(ret);
Py_DECREF(ret);
}
pyglib_gil_state_release(state);
return res;
}
PyObject*
_pyglib_generic_ptr_richcompare(void* a, void *b, int op)
{
PyObject *res;
switch (op) {
case Py_EQ:
res = (a == b) ? Py_True : Py_False;
break;
case Py_NE:
res = (a != b) ? Py_True : Py_False;
break;
case Py_LT:
res = (a < b) ? Py_True : Py_False;
break;
case Py_LE:
res = (a <= b) ? Py_True : Py_False;
break;
case Py_GT:
res = (a > b) ? Py_True : Py_False;
break;
case Py_GE:
res = (a >= b) ? Py_True : Py_False;
break;
default:
res = Py_NotImplemented;
break;
}
Py_INCREF(res);
return res;
}
PyObject*
_pyglib_generic_long_richcompare(long a, long b, int op)
{
PyObject *res;
switch (op) {
case Py_EQ:
res = (a == b) ? Py_True : Py_False;
Py_INCREF(res);
break;
case Py_NE:
res = (a != b) ? Py_True : Py_False;
Py_INCREF(res);
break;
case Py_LT:
res = (a < b) ? Py_True : Py_False;
Py_INCREF(res);
break;
case Py_LE:
res = (a <= b) ? Py_True : Py_False;
Py_INCREF(res);
break;
case Py_GT:
res = (a > b) ? Py_True : Py_False;
Py_INCREF(res);
break;
case Py_GE:
res = (a >= b) ? Py_True : Py_False;
Py_INCREF(res);
break;
default:
res = Py_NotImplemented;
Py_INCREF(res);
break;
}
return res;
}
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