示例#1
0
PyObject *
_pygi_marshal_to_py_interface_enum (PyGIInvokeState   *state,
                                    PyGICallableCache *callable_cache,
                                    PyGIArgCache      *arg_cache,
                                    GIArgument        *arg)
{
    PyObject *py_obj = NULL;
    PyGIInterfaceCache *iface_cache = (PyGIInterfaceCache *)arg_cache;
    GIBaseInfo *interface;
    long c_long;

    interface = g_type_info_get_interface (arg_cache->type_info);
    g_assert (g_base_info_get_type (interface) == GI_INFO_TYPE_ENUM);

    if (!gi_argument_to_c_long(arg, &c_long,
                               g_enum_info_get_storage_type ((GIEnumInfo *)interface))) {
        return NULL;
    }

    if (iface_cache->g_type == G_TYPE_NONE) {
        py_obj = PyObject_CallFunction (iface_cache->py_type, "l", c_long);
    } else {
        py_obj = pyg_enum_from_gtype (iface_cache->g_type, c_long);
    }
    g_base_info_unref (interface);
    return py_obj;
}
示例#2
0
static PyObject *
_wrap_gimp_thumb_file_test(PyGObject *self, PyObject *args, PyObject *kwargs)
{
    gchar *filename;
    GimpThumbFileType ret;
    gint64 mtime, size;
    gint err_no;

    static char *kwlist[] = { "filename", NULL };

    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s:file_test", kwlist,
                                     &filename))
        return NULL;

    ret = gimp_thumb_file_test(filename, &mtime, &size, &err_no);

    if (ret == GIMP_THUMB_FILE_TYPE_NONE) {
        PyObject *v = Py_BuildValue("iss",
                                    err_no, g_strerror(err_no), filename); 
        if (v != NULL) {
            PyErr_SetObject(PyExc_IOError, v);
            Py_DECREF(v);
        }

        return NULL;
    }

    return Py_BuildValue("NNN", 
                         pyg_enum_from_gtype(GIMP_TYPE_THUMB_FILE_TYPE, ret),
                         PyLong_FromLongLong(mtime),
                         PyLong_FromLongLong(size));
}
示例#3
0
static PyObject *
_wrap_gimp_thumb_find_thumb(PyGObject *self, PyObject *args, PyObject *kwargs)
{
    gchar *uri, *ret;
    PyObject *py_size, *py_ret;
    GimpThumbSize size;

    static char *kwlist[] = { "uri", NULL };

    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "sO:find_thumb", kwlist,
                                     &uri, &py_size))
        return NULL;

    if (pyg_enum_get_value(GIMP_TYPE_THUMB_SIZE, py_size, (gint *)&size))
        return NULL;

    ret = gimp_thumb_find_thumb(uri, &size);

    if (ret == NULL) {
        Py_INCREF(Py_None);
        return Py_None;
    }

    py_ret = Py_BuildValue("sN", ret,
                           pyg_enum_from_gtype(GIMP_TYPE_THUMB_SIZE, size));
    g_free(ret);
    return py_ret;
}
示例#4
0
static PyObject *
_wrap_gimp_thumbnail_peek_image(PyGObject *self)
{
    gint ret;

    
    ret = gimp_thumbnail_peek_image(GIMP_THUMBNAIL(self->obj));
    
    return pyg_enum_from_gtype(GIMP_TYPE_THUMB_STATE, ret);
}
示例#5
0
文件: video.c 项目: zsx/ossbuild
static PyObject *
_wrap_gst_video_format_from_fourcc(PyObject *self, PyObject *args, PyObject *kwargs)
{
    static char *kwlist[] = { "fourcc", NULL };
    unsigned long fourcc;
    gint ret;

    if (!PyArg_ParseTupleAndKeywords(args, kwargs,"k:format_from_fourcc", kwlist, &fourcc))
        return NULL;
    pyg_begin_allow_threads;
    ret = gst_video_format_from_fourcc(fourcc);
    pyg_end_allow_threads;
    return pyg_enum_from_gtype(GST_TYPE_VIDEO_FORMAT, ret);
}
示例#6
0
PyObject *
_pygi_marshal_to_py_interface_enum (PyGIInvokeState   *state,
                                    PyGICallableCache *callable_cache,
                                    PyGIArgCache      *arg_cache,
                                    GIArgument        *arg)
{
    PyObject *py_obj = NULL;
    PyGIInterfaceCache *iface_cache = (PyGIInterfaceCache *)arg_cache;

    if (iface_cache->g_type == G_TYPE_NONE) {
        py_obj = PyObject_CallFunction (iface_cache->py_type, "l", arg->v_long);
    } else {
        py_obj = pyg_enum_from_gtype (iface_cache->g_type, arg->v_long);
    }
    return py_obj;
}
示例#7
0
static PyObject *
_wrap_gimp_thumbnail_check_thumb(PyGObject *self, PyObject *args, PyObject *kwargs)
{
    static char *kwlist[] = { "size", NULL };
    PyObject *py_size = NULL;
    gint ret;
    GimpThumbSize size;

    if (!PyArg_ParseTupleAndKeywords(args, kwargs,"O:Gimp.Thumbnail.check_thumb", kwlist, &py_size))
        return NULL;
    if (pyg_enum_get_value(GIMP_TYPE_THUMB_SIZE, py_size, (gpointer)&size))
        return NULL;
    
    ret = gimp_thumbnail_check_thumb(GIMP_THUMBNAIL(self->obj), size);
    
    return pyg_enum_from_gtype(GIMP_TYPE_THUMB_STATE, ret);
}
示例#8
0
文件: pygtype.c 项目: nzjrs/pygobject
/**
 * pyg_value_as_pyobject:
 * @value: the GValue object.
 * @copy_boxed: true if boxed values should be copied.
 *
 * This function creates/returns a Python wrapper object that
 * represents the GValue passed as an argument.
 *
 * Returns: a PyObject representing the value.
 */
PyObject *
pyg_value_as_pyobject(const GValue *value, gboolean copy_boxed)
{
    gchar buf[128];

    switch (G_TYPE_FUNDAMENTAL(G_VALUE_TYPE(value))) {
    case G_TYPE_INTERFACE:
	if (g_type_is_a(G_VALUE_TYPE(value), G_TYPE_OBJECT))
	    return pygobject_new(g_value_get_object(value));
	else
	    break;
    case G_TYPE_CHAR: {
	gint8 val = g_value_get_char(value);
	return PYGLIB_PyUnicode_FromStringAndSize((char *)&val, 1);
    }
    case G_TYPE_UCHAR: {
	guint8 val = g_value_get_uchar(value);
	return PYGLIB_PyBytes_FromStringAndSize((char *)&val, 1);
    }
    case G_TYPE_BOOLEAN: {
	return PyBool_FromLong(g_value_get_boolean(value));
    }
    case G_TYPE_INT:
	return PYGLIB_PyLong_FromLong(g_value_get_int(value));
    case G_TYPE_UINT:
	{
	    /* in Python, the Int object is backed by a long.  If a
	       long can hold the whole value of an unsigned int, use
	       an Int.  Otherwise, use a Long object to avoid overflow.
	       This matches the ULongArg behavior in codegen/argtypes.h */
#if (G_MAXUINT <= G_MAXLONG)
	    return PYGLIB_PyLong_FromLong((glong) g_value_get_uint(value));
#else
	    return PyLong_FromUnsignedLong((gulong) g_value_get_uint(value));
#endif
	}
    case G_TYPE_LONG:
	return PYGLIB_PyLong_FromLong(g_value_get_long(value));
    case G_TYPE_ULONG:
	{
	    gulong val = g_value_get_ulong(value);

	    if (val <= G_MAXLONG)
		return PYGLIB_PyLong_FromLong((glong) val);
	    else
		return PyLong_FromUnsignedLong(val);
	}
    case G_TYPE_INT64:
	{
	    gint64 val = g_value_get_int64(value);

	    if (G_MINLONG <= val && val <= G_MAXLONG)
		return PYGLIB_PyLong_FromLong((glong) val);
	    else
		return PyLong_FromLongLong(val);
	}
    case G_TYPE_UINT64:
	{
	    guint64 val = g_value_get_uint64(value);

	    if (val <= G_MAXLONG)
		return PYGLIB_PyLong_FromLong((glong) val);
	    else
		return PyLong_FromUnsignedLongLong(val);
	}
    case G_TYPE_ENUM:
	return pyg_enum_from_gtype(G_VALUE_TYPE(value), g_value_get_enum(value));
    case G_TYPE_FLAGS:
	return pyg_flags_from_gtype(G_VALUE_TYPE(value), g_value_get_flags(value));
    case G_TYPE_FLOAT:
	return PyFloat_FromDouble(g_value_get_float(value));
    case G_TYPE_DOUBLE:
	return PyFloat_FromDouble(g_value_get_double(value));
    case G_TYPE_STRING:
	{
	    const gchar *str = g_value_get_string(value);

	    if (str)
		return PYGLIB_PyUnicode_FromString(str);
	    Py_INCREF(Py_None);
	    return Py_None;
	}
    case G_TYPE_POINTER:
	return pyg_pointer_new(G_VALUE_TYPE(value),
			       g_value_get_pointer(value));
    case G_TYPE_BOXED: {
	PyGTypeMarshal *bm;

	if (G_VALUE_HOLDS(value, PY_TYPE_OBJECT)) {
	    PyObject *ret = (PyObject *)g_value_dup_boxed(value);
	    if (ret == NULL) {
		Py_INCREF(Py_None);
		return Py_None;
	    }
	    return ret;
        } else if (G_VALUE_HOLDS(value, G_TYPE_VALUE)) {
            GValue *n_value = g_value_get_boxed (value);
            return pyg_value_as_pyobject(n_value, copy_boxed);
        } else if (G_VALUE_HOLDS(value, G_TYPE_VALUE_ARRAY)) {
	    GValueArray *array = (GValueArray *) g_value_get_boxed(value);
	    PyObject *ret = PyList_New(array->n_values);
	    int i;
	    for (i = 0; i < array->n_values; ++i)
		PyList_SET_ITEM(ret, i, pyg_value_as_pyobject
                                (array->values + i, copy_boxed));
	    return ret;
	} else if (G_VALUE_HOLDS(value, G_TYPE_GSTRING)) {
	    GString *string = (GString *) g_value_get_boxed(value);
	    PyObject *ret = PYGLIB_PyUnicode_FromStringAndSize(string->str, string->len);
	    return ret;
	}
	bm = pyg_type_lookup(G_VALUE_TYPE(value));
	if (bm) {
	    return bm->fromvalue(value);
	} else {
	    if (copy_boxed)
		return pyg_boxed_new(G_VALUE_TYPE(value),
				     g_value_get_boxed(value), TRUE, TRUE);
	    else
		return pyg_boxed_new(G_VALUE_TYPE(value),
				     g_value_get_boxed(value),FALSE,FALSE);
	}
    }
    case G_TYPE_PARAM:
	return pyg_param_spec_new(g_value_get_param(value));
    case G_TYPE_OBJECT:
	return pygobject_new(g_value_get_object(value));
    default:
	{
	    PyGTypeMarshal *bm;
	    if ((bm = pyg_type_lookup(G_VALUE_TYPE(value))))
		return bm->fromvalue(value);
	    break;
	}
    }
    g_snprintf(buf, sizeof(buf), "unknown type %s",
	       g_type_name(G_VALUE_TYPE(value)));
    PyErr_SetString(PyExc_TypeError, buf);
    return NULL;
}
示例#9
0
/**
 * _pygi_argument_to_object:
 * @arg: The argument to convert to an object.
 * @type_info: Type info for @arg
 * @transfer:
 *
 * If the argument is of type array, it must be encoded in a GArray, by calling
 * _pygi_argument_to_array(). This logic can not be folded into this method
 * as determining array lengths may require access to method call arguments.
 *
 * Returns: A PyObject representing @arg
 */
PyObject *
_pygi_argument_to_object (GIArgument  *arg,
                          GITypeInfo *type_info,
                          GITransfer transfer)
{
    GITypeTag type_tag;
    PyObject *object = NULL;

    type_tag = g_type_info_get_tag (type_info);
    object = _pygi_marshal_to_py_basic_type (arg, type_tag, transfer);
    if (object)
        return object;

    switch (type_tag) {
        case GI_TYPE_TAG_VOID:
        {
            if (g_type_info_is_pointer (type_info)) {
                g_warn_if_fail (transfer == GI_TRANSFER_NOTHING);
                object = PyLong_FromVoidPtr (arg->v_pointer);
            }
            break;
        }
        case GI_TYPE_TAG_ARRAY:
        {
            /* Arrays are assumed to be packed in a GArray */
            GArray *array;
            GITypeInfo *item_type_info;
            GITypeTag item_type_tag;
            GITransfer item_transfer;
            gsize i, item_size;

            if (arg->v_pointer == NULL)
                return PyList_New (0);
            
            item_type_info = g_type_info_get_param_type (type_info, 0);
            g_assert (item_type_info != NULL);

            item_type_tag = g_type_info_get_tag (item_type_info);
            item_transfer = transfer == GI_TRANSFER_CONTAINER ? GI_TRANSFER_NOTHING : transfer;
            
            array = arg->v_pointer;
            item_size = g_array_get_element_size (array);
            
            if (G_UNLIKELY (item_size > sizeof(GIArgument))) {
                g_critical ("Stack overflow protection. "
                            "Can't copy array element into GIArgument.");
                return PyList_New (0);
            }

            if (item_type_tag == GI_TYPE_TAG_UINT8) {
                /* Return as a byte array */
                object = PYGLIB_PyBytes_FromStringAndSize (array->data, array->len);
            } else {
                object = PyList_New (array->len);
                if (object == NULL) {
                    g_critical ("Failure to allocate array for %u items", array->len);
                    g_base_info_unref ( (GIBaseInfo *) item_type_info);
                    break;
                }

                for (i = 0; i < array->len; i++) {
                    GIArgument item = { 0 };
                    PyObject *py_item;
                    
                    memcpy (&item, array->data + i * item_size, item_size);

                    py_item = _pygi_argument_to_object (&item, item_type_info, item_transfer);
                    if (py_item == NULL) {
                        Py_CLEAR (object);
                        _PyGI_ERROR_PREFIX ("Item %zu: ", i);
                        break;
                    }

                    PyList_SET_ITEM (object, i, py_item);
                }
            }

            g_base_info_unref ( (GIBaseInfo *) item_type_info);
            break;
        }
        case GI_TYPE_TAG_INTERFACE:
        {
            GIBaseInfo *info;
            GIInfoType info_type;

            info = g_type_info_get_interface (type_info);
            info_type = g_base_info_get_type (info);

            switch (info_type) {
                case GI_INFO_TYPE_CALLBACK:
                {
                    g_assert_not_reached();
                }
                case GI_INFO_TYPE_BOXED:
                case GI_INFO_TYPE_STRUCT:
                case GI_INFO_TYPE_UNION:
                {
                    PyObject *py_type;
                    GType g_type = g_registered_type_info_get_g_type ( (GIRegisteredTypeInfo *) info);
                    gboolean is_foreign = (info_type == GI_INFO_TYPE_STRUCT) &&
                                          (g_struct_info_is_foreign ((GIStructInfo *) info));

                    /* Special case variant and none to force loading from py module. */
                    if (g_type == G_TYPE_VARIANT || g_type == G_TYPE_NONE) {
                        py_type = _pygi_type_import_by_gi_info (info);
                    } else {
                        py_type = _pygi_type_get_from_g_type (g_type);
                    }

                    object = pygi_arg_struct_to_py_marshal (arg,
                                                            info, /*interface_info*/
                                                            g_type,
                                                            py_type,
                                                            transfer,
                                                            FALSE, /*is_allocated*/
                                                            is_foreign);

                    Py_XDECREF (py_type);
                    break;
                }
                case GI_INFO_TYPE_ENUM:
                case GI_INFO_TYPE_FLAGS:
                {
                    GType type;

                    type = g_registered_type_info_get_g_type ( (GIRegisteredTypeInfo *) info);

                    if (type == G_TYPE_NONE) {
                        /* An enum with a GType of None is an enum without GType */
                        PyObject *py_type = _pygi_type_import_by_gi_info (info);
                        PyObject *py_args = NULL;

                        if (!py_type)
                            return NULL;

                        py_args = PyTuple_New (1);
                        if (PyTuple_SetItem (py_args, 0, PyLong_FromLong (arg->v_int)) != 0) {
                            Py_DECREF (py_args);
                            Py_DECREF (py_type);
                            return NULL;
                        }

                        object = PyObject_CallFunction (py_type, "i", arg->v_int);

                        Py_DECREF (py_args);
                        Py_DECREF (py_type);

                    } else if (info_type == GI_INFO_TYPE_ENUM) {
                        object = pyg_enum_from_gtype (type, arg->v_int);
                    } else {
                        object = pyg_flags_from_gtype (type, arg->v_uint);
                    }

                    break;
                }
                case GI_INFO_TYPE_INTERFACE:
                case GI_INFO_TYPE_OBJECT:
                    object = pygi_arg_gobject_to_py_called_from_c (arg, transfer);

                    break;
                default:
                    g_assert_not_reached();
            }

            g_base_info_unref (info);
            break;
        }
        case GI_TYPE_TAG_GLIST:
        case GI_TYPE_TAG_GSLIST:
        {
            GSList *list;
            gsize length;
            GITypeInfo *item_type_info;
            GITransfer item_transfer;
            gsize i;

            list = arg->v_pointer;
            length = g_slist_length (list);

            object = PyList_New (length);
            if (object == NULL) {
                break;
            }

            item_type_info = g_type_info_get_param_type (type_info, 0);
            g_assert (item_type_info != NULL);

            item_transfer = transfer == GI_TRANSFER_CONTAINER ? GI_TRANSFER_NOTHING : transfer;

            for (i = 0; list != NULL; list = g_slist_next (list), i++) {
                GIArgument item;
                PyObject *py_item;

                item.v_pointer = list->data;

                py_item = _pygi_argument_to_object (&item, item_type_info, item_transfer);
                if (py_item == NULL) {
                    Py_CLEAR (object);
                    _PyGI_ERROR_PREFIX ("Item %zu: ", i);
                    break;
                }

                PyList_SET_ITEM (object, i, py_item);
            }

            g_base_info_unref ( (GIBaseInfo *) item_type_info);
            break;
        }
        case GI_TYPE_TAG_GHASH:
        {
            GITypeInfo *key_type_info;
            GITypeInfo *value_type_info;
            GITransfer item_transfer;
            GHashTableIter hash_table_iter;
            GIArgument key;
            GIArgument value;

            if (arg->v_pointer == NULL) {
                object = Py_None;
                Py_INCREF (object);
                break;
            }

            object = PyDict_New();
            if (object == NULL) {
                break;
            }

            key_type_info = g_type_info_get_param_type (type_info, 0);
            g_assert (key_type_info != NULL);
            g_assert (g_type_info_get_tag (key_type_info) != GI_TYPE_TAG_VOID);

            value_type_info = g_type_info_get_param_type (type_info, 1);
            g_assert (value_type_info != NULL);
            g_assert (g_type_info_get_tag (value_type_info) != GI_TYPE_TAG_VOID);

            item_transfer = transfer == GI_TRANSFER_CONTAINER ? GI_TRANSFER_NOTHING : transfer;

            g_hash_table_iter_init (&hash_table_iter, (GHashTable *) arg->v_pointer);
            while (g_hash_table_iter_next (&hash_table_iter, &key.v_pointer, &value.v_pointer)) {
                PyObject *py_key;
                PyObject *py_value;
                int retval;

                py_key = _pygi_argument_to_object (&key, key_type_info, item_transfer);
                if (py_key == NULL) {
                    break;
                }

                _pygi_hash_pointer_to_arg (&value, g_type_info_get_tag (value_type_info));
                py_value = _pygi_argument_to_object (&value, value_type_info, item_transfer);
                if (py_value == NULL) {
                    Py_DECREF (py_key);
                    break;
                }

                retval = PyDict_SetItem (object, py_key, py_value);

                Py_DECREF (py_key);
                Py_DECREF (py_value);

                if (retval < 0) {
                    Py_CLEAR (object);
                    break;
                }
            }

            g_base_info_unref ( (GIBaseInfo *) key_type_info);
            g_base_info_unref ( (GIBaseInfo *) value_type_info);
            break;
        }
        case GI_TYPE_TAG_ERROR:
        {
            GError *error = (GError *) arg->v_pointer;
            if (error != NULL && transfer == GI_TRANSFER_NOTHING) {
                /* If we have not been transferred the ownership we must copy
                 * the error, because pygi_error_check() is going to free it.
                 */
                error = g_error_copy (error);
            }

            if (pygi_error_check (&error)) {
                PyObject *err_type;
                PyObject *err_value;
                PyObject *err_trace;
                PyErr_Fetch (&err_type, &err_value, &err_trace);
                Py_XDECREF (err_type);
                Py_XDECREF (err_trace);
                object = err_value;
            } else {
                object = Py_None;
                Py_INCREF (object);
                break;
            }
            break;
        }
        default:
        {
            g_assert_not_reached();
        }
    }

    return object;
}