/* -*- Mode: C; c-basic-offset: 4 -*- * pygtk- Python bindings for the GTK toolkit. * Copyright (C) 1998-2003 James Henstridge * * pygboxed.c: wrapper for GBoxed * * 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, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 * USA */ #ifdef HAVE_CONFIG_H # include #endif #include #include "pygobject-private.h" #include "pygboxed.h" #include "pygi-external.h" GQuark pygboxed_type_key; GQuark pygboxed_marshal_key; PYGLIB_DEFINE_TYPE("gobject.GBoxed", PyGBoxed_Type, PyGBoxed); static void pyg_boxed_dealloc(PyGBoxed *self) { if (self->free_on_dealloc && self->boxed) { PyGILState_STATE state = pyglib_gil_state_ensure(); g_boxed_free(self->gtype, self->boxed); pyglib_gil_state_release(state); } Py_TYPE(self)->tp_free((PyObject *)self); } static PyObject* pyg_boxed_richcompare(PyObject *self, PyObject *other, int op) { if (Py_TYPE(self) == Py_TYPE(other) && Py_TYPE(self) == &PyGBoxed_Type) return _pyglib_generic_ptr_richcompare(((PyGBoxed*)self)->boxed, ((PyGBoxed*)other)->boxed, op); else { Py_INCREF(Py_NotImplemented); return Py_NotImplemented; } } static long pyg_boxed_hash(PyGBoxed *self) { return (long)self->boxed; } static PyObject * pyg_boxed_repr(PyGBoxed *self) { gchar buf[128]; g_snprintf(buf, sizeof(buf), "<%s at 0x%lx>", g_type_name(self->gtype), (long)self->boxed); return _PyUnicode_FromString(buf); } static int pyg_boxed_init(PyGBoxed *self, PyObject *args, PyObject *kwargs) { gchar buf[512]; if (!PyArg_ParseTuple(args, ":GBoxed.__init__")) return -1; self->boxed = NULL; self->gtype = 0; self->free_on_dealloc = FALSE; g_snprintf(buf, sizeof(buf), "%s can not be constructed", Py_TYPE(self)->tp_name); PyErr_SetString(PyExc_NotImplementedError, buf); return -1; } static void pyg_boxed_free(PyObject *op) { PyObject_FREE(op); } static PyObject * pyg_boxed_copy(PyGBoxed *self) { return pyg_boxed_new (self->gtype, self->boxed, TRUE, TRUE); } static PyMethodDef pygboxed_methods[] = { { "copy", (PyCFunction) pyg_boxed_copy, METH_NOARGS }, { NULL, NULL, 0 } }; /** * pyg_register_boxed: * @dict: the module dictionary to store the wrapper class. * @class_name: the Python name for the wrapper class. * @boxed_type: the GType of the boxed type being wrapped. * @type: the wrapper class. * * Registers a wrapper for a boxed type. The wrapper class will be a * subclass of gobject.GBoxed, and a reference to the wrapper class * will be stored in the provided module dictionary. */ void pyg_register_boxed(PyObject *dict, const gchar *class_name, GType boxed_type, PyTypeObject *type) { PyObject *o; g_return_if_fail(dict != NULL); g_return_if_fail(class_name != NULL); g_return_if_fail(boxed_type != 0); if (!type->tp_dealloc) type->tp_dealloc = (destructor)pyg_boxed_dealloc; Py_TYPE(type) = &PyType_Type; type->tp_base = &PyGBoxed_Type; if (PyType_Ready(type) < 0) { g_warning("could not get type `%s' ready", type->tp_name); return; } PyDict_SetItemString(type->tp_dict, "__gtype__", o=pyg_type_wrapper_new(boxed_type)); Py_DECREF(o); g_type_set_qdata(boxed_type, pygboxed_type_key, type); PyDict_SetItemString(dict, (char *)class_name, (PyObject *)type); } /** * pyg_boxed_new: * @boxed_type: the GType of the boxed value. * @boxed: the boxed value. * @copy_boxed: whether the new boxed wrapper should hold a copy of the value. * @own_ref: whether the boxed wrapper should own the boxed value. * * Creates a wrapper for a boxed value. If @copy_boxed is set to * True, the wrapper will hold a copy of the value, instead of the * value itself. If @own_ref is True, then the value held by the * wrapper will be freed when the wrapper is deallocated. If * @copy_boxed is True, then @own_ref must also be True. * * Returns: the boxed wrapper. */ PyObject * pyg_boxed_new(GType boxed_type, gpointer boxed, gboolean copy_boxed, gboolean own_ref) { PyGILState_STATE state; PyGBoxed *self; PyTypeObject *tp; g_return_val_if_fail(boxed_type != 0, NULL); g_return_val_if_fail(!copy_boxed || (copy_boxed && own_ref), NULL); state = pyglib_gil_state_ensure(); if (!boxed) { Py_INCREF(Py_None); pyglib_gil_state_release(state); return Py_None; } tp = g_type_get_qdata(boxed_type, pygboxed_type_key); if (!tp) tp = (PyTypeObject *)pygi_type_import_by_g_type(boxed_type); if (!tp) tp = (PyTypeObject *)&PyGBoxed_Type; /* fallback */ self = (PyGBoxed *)tp->tp_alloc(tp, 0); if (self == NULL) { pyglib_gil_state_release(state); return NULL; } if (copy_boxed) boxed = g_boxed_copy(boxed_type, boxed); self->boxed = boxed; self->gtype = boxed_type; self->free_on_dealloc = own_ref; pyglib_gil_state_release(state); return (PyObject *)self; } void pygobject_boxed_register_types(PyObject *d) { pygboxed_type_key = g_quark_from_static_string("PyGBoxed::class"); pygboxed_marshal_key = g_quark_from_static_string("PyGBoxed::marshal"); PyGBoxed_Type.tp_dealloc = (destructor)pyg_boxed_dealloc; PyGBoxed_Type.tp_richcompare = pyg_boxed_richcompare; PyGBoxed_Type.tp_repr = (reprfunc)pyg_boxed_repr; PyGBoxed_Type.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE; PyGBoxed_Type.tp_methods = pygboxed_methods; PyGBoxed_Type.tp_init = (initproc)pyg_boxed_init; PyGBoxed_Type.tp_free = (freefunc)pyg_boxed_free; PyGBoxed_Type.tp_hash = (hashfunc)pyg_boxed_hash; PYGOBJECT_REGISTER_GTYPE(d, PyGBoxed_Type, "GBoxed", G_TYPE_BOXED); }