/** * g_object_info_find_vfunc: * @info: a #GIObjectInfo * @name: The name of a virtual function to find. * * Locate a virtual function slot with name @name. Note that the namespace * for virtuals is distinct from that of methods; there may or may not be * a concrete method associated for a virtual. If there is one, it may * be retrieved using g_vfunc_info_get_invoker(), otherwise %NULL will be * returned. * See the documentation for g_vfunc_info_get_invoker() for more * information on invoking virtuals. * * Returns: (transfer full): the #GIVFuncInfo, or %NULL. Free it with * g_base_info_unref() when done. */ GIVFuncInfo * g_object_info_find_vfunc (GIObjectInfo *info, const gchar *name) { gint offset; GIRealInfo *rinfo = (GIRealInfo *)info; Header *header; ObjectBlob *blob; g_return_val_if_fail (info != NULL, NULL); g_return_val_if_fail (GI_IS_OBJECT_INFO (info), NULL); header = (Header *)rinfo->typelib->data; blob = (ObjectBlob *)&rinfo->typelib->data[rinfo->offset]; offset = rinfo->offset + header->object_blob_size + (blob->n_interfaces + blob->n_interfaces % 2) * 2 + blob->n_fields * header->field_blob_size + blob->n_field_callbacks * header->callback_blob_size + blob->n_properties * header->property_blob_size + blob->n_methods * header->function_blob_size + blob->n_signals * header->signal_blob_size; return _g_base_info_find_vfunc (rinfo, offset, blob->n_vfuncs, name); }
/** * g_object_info_get_constant: * @info: a #GIObjectInfo * @n: index of constant to get * * Obtain an object type constant at index @n. * * Returns: (transfer full): the #GIConstantInfo. Free the struct by calling * g_base_info_unref() when done. */ GIConstantInfo * g_object_info_get_constant (GIObjectInfo *info, gint n) { gint offset; GIRealInfo *rinfo = (GIRealInfo *)info; Header *header; ObjectBlob *blob; g_return_val_if_fail (info != NULL, NULL); g_return_val_if_fail (GI_IS_OBJECT_INFO (info), NULL); header = (Header *)rinfo->typelib->data; blob = (ObjectBlob *)&rinfo->typelib->data[rinfo->offset]; offset = g_object_info_get_field_offset(info, blob->n_fields) + blob->n_properties * header->property_blob_size + blob->n_methods * header->function_blob_size + blob->n_signals * header->signal_blob_size + blob->n_vfuncs * header->vfunc_blob_size + n * header->constant_blob_size; return (GIConstantInfo *) g_info_new (GI_INFO_TYPE_CONSTANT, (GIBaseInfo*)info, rinfo->typelib, offset); }
/** * g_object_info_get_vfunc: * @info: a #GIObjectInfo * @n: index of virtual function to get * * Obtain an object type virtual function at index @n. * * Returns: (transfer full): the #GIVFuncInfo. Free the struct by calling * g_base_info_unref() when done. */ GIVFuncInfo * g_object_info_get_vfunc (GIObjectInfo *info, gint n) { gint offset; GIRealInfo *rinfo = (GIRealInfo *)info; Header *header; ObjectBlob *blob; g_return_val_if_fail (info != NULL, NULL); g_return_val_if_fail (GI_IS_OBJECT_INFO (info), NULL); header = (Header *)rinfo->typelib->data; blob = (ObjectBlob *)&rinfo->typelib->data[rinfo->offset]; offset = rinfo->offset + header->object_blob_size + (blob->n_interfaces + blob->n_interfaces % 2) * 2 + blob->n_fields * header->field_blob_size + blob->n_field_callbacks * header->callback_blob_size + blob->n_properties * header->property_blob_size + blob->n_methods * header->function_blob_size + blob->n_signals * header->signal_blob_size + n * header->vfunc_blob_size; return (GIVFuncInfo *) g_info_new (GI_INFO_TYPE_VFUNC, (GIBaseInfo*)info, rinfo->typelib, offset); }
/* Creates marshaller closure for specified fundamental object type. If specified object does not have custom setvalue/getvalue functions registered, returns nil. Signature is: marshaller = marshal.fundamental(gtype) */ static int marshal_fundamental (lua_State *L) { /* Find associated baseinfo. */ GIBaseInfo *info = g_irepository_find_by_gtype (NULL, lgi_type_get_gtype (L, 1)); if (info) { lgi_gi_info_new (L, info); if (GI_IS_OBJECT_INFO (info) && g_object_info_get_fundamental (info)) { GIObjectInfoGetValueFunction get_value = lgi_object_get_function_ptr (info, g_object_info_get_get_value_function); GIObjectInfoSetValueFunction set_value = lgi_object_get_function_ptr (info, g_object_info_get_set_value_function); if (get_value && set_value) { lua_pushlightuserdata (L, get_value); lua_pushlightuserdata (L, set_value); lua_pushcclosure (L, marshal_fundamental_marshaller, 2); return 1; } } } lua_pushnil (L); return 1; }
/** * g_object_info_get_set_value_function_pointer: (skip) * @info: a #GIObjectInfo * * Obtain a pointer to a function which can be used to * set a GValue given an instance of this object type. * This takes derivation into account and will reversely traverse * the base classes of this type, starting at the top type. * * Returns: the function pointer or %NULL */ GIObjectInfoSetValueFunction g_object_info_get_set_value_function_pointer (GIObjectInfo *info) { g_return_val_if_fail (info != NULL, NULL); g_return_val_if_fail (GI_IS_OBJECT_INFO (info), NULL); return (GIObjectInfoSetValueFunction)_get_func(info, (SymbolGetter)g_object_info_get_set_value_function); }
/** * g_object_info_get_n_properties: * @info: a #GIObjectInfo * * Obtain the number of properties that this object type has. * * Returns: number of properties */ gint g_object_info_get_n_properties (GIObjectInfo *info) { GIRealInfo *rinfo = (GIRealInfo *)info; ObjectBlob *blob; g_return_val_if_fail (info != NULL, 0); g_return_val_if_fail (GI_IS_OBJECT_INFO (info), 0); blob = (ObjectBlob *)&rinfo->typelib->data[rinfo->offset]; return blob->n_properties; }
/** * g_object_info_get_type_init: * @info: a #GIObjectInfo * * Obtain the function which when called will return the GType * function for which this object type is registered. * * Returns: the type init function */ const gchar * g_object_info_get_type_init (GIObjectInfo *info) { GIRealInfo *rinfo = (GIRealInfo *)info; ObjectBlob *blob; g_return_val_if_fail (info != NULL, NULL); g_return_val_if_fail (GI_IS_OBJECT_INFO (info), NULL); blob = (ObjectBlob *)&rinfo->typelib->data[rinfo->offset]; return g_typelib_get_string (rinfo->typelib, blob->gtype_init); }
/** * g_object_info_get_fundamental: * @info: a #GIObjectInfo * * Obtain if the object type is of a fundamental type which is not * G_TYPE_OBJECT. This is mostly for supporting GstMiniObject. * * Returns: %TRUE if the object type is a fundamental type */ gboolean g_object_info_get_fundamental (GIObjectInfo *info) { GIRealInfo *rinfo = (GIRealInfo *)info; ObjectBlob *blob; g_return_val_if_fail (info != NULL, FALSE); g_return_val_if_fail (GI_IS_OBJECT_INFO (info), FALSE); blob = (ObjectBlob *)&rinfo->typelib->data[rinfo->offset]; return blob->fundamental != 0; }
/** * g_object_info_get_field: * @info: a #GIObjectInfo * @n: index of field to get * * Obtain an object type field at index @n. * * Returns: (transfer full): the #GIFieldInfo. Free the struct by calling * g_base_info_unref() when done. */ GIFieldInfo * g_object_info_get_field (GIObjectInfo *info, gint n) { gint offset; GIRealInfo *rinfo = (GIRealInfo *)info; g_return_val_if_fail (info != NULL, NULL); g_return_val_if_fail (GI_IS_OBJECT_INFO (info), NULL); offset = g_object_info_get_field_offset(info, n); return (GIFieldInfo *) g_info_new (GI_INFO_TYPE_FIELD, (GIBaseInfo*)info, rinfo->typelib, offset); }
/** * g_object_info_get_interface: * @info: a #GIObjectInfo * @n: index of interface to get * * Obtain an object type interface at index @n. * * Returns: (transfer full): the #GIInterfaceInfo. Free the struct by calling * g_base_info_unref() when done. */ GIInterfaceInfo * g_object_info_get_interface (GIObjectInfo *info, gint n) { GIRealInfo *rinfo = (GIRealInfo *)info; ObjectBlob *blob; g_return_val_if_fail (info != NULL, NULL); g_return_val_if_fail (GI_IS_OBJECT_INFO (info), NULL); blob = (ObjectBlob *)&rinfo->typelib->data[rinfo->offset]; return (GIInterfaceInfo *) _g_info_from_entry (rinfo->repository, rinfo->typelib, blob->interfaces[n]); }
/** * g_object_info_get_set_value_function: * @info: a #GIObjectInfo * * Obtain the symbol name of the function that should be called to convert * set a GValue giving an object instance pointer of this object type. * I's mainly used fundamental types. The type signature for the symbol * is %GIObjectInfoSetValueFunction, to fetch the function pointer * see g_object_info_get_set_value_function(). * * Returns: the symbol or %NULL */ const char * g_object_info_get_set_value_function (GIObjectInfo *info) { GIRealInfo *rinfo = (GIRealInfo *)info; ObjectBlob *blob; g_return_val_if_fail (info != NULL, NULL); g_return_val_if_fail (GI_IS_OBJECT_INFO (info), NULL); blob = (ObjectBlob *)&rinfo->typelib->data[rinfo->offset]; if (blob->set_value_func) return g_typelib_get_string (rinfo->typelib, blob->set_value_func); return NULL; }
/** * g_object_info_get_parent: * @info: a #GIObjectInfo * * Obtain the parent of the object type. * * Returns: (transfer full): the #GIObjectInfo. Free the struct by calling * g_base_info_unref() when done. */ GIObjectInfo * g_object_info_get_parent (GIObjectInfo *info) { GIRealInfo *rinfo = (GIRealInfo *)info; ObjectBlob *blob; g_return_val_if_fail (info != NULL, NULL); g_return_val_if_fail (GI_IS_OBJECT_INFO (info), NULL); blob = (ObjectBlob *)&rinfo->typelib->data[rinfo->offset]; if (blob->parent) return (GIObjectInfo *) _g_info_from_entry (rinfo->repository, rinfo->typelib, blob->parent); else return NULL; }
/** * g_object_info_find_method: * @info: a #GIObjectInfo * @name: name of method to obtain * * Obtain a method of the object type given a @name. %NULL will be * returned if there's no method available with that name. * * Returns: (transfer full): the #GIFunctionInfo. Free the struct by calling * g_base_info_unref() when done. */ GIFunctionInfo * g_object_info_find_method (GIObjectInfo *info, const gchar *name) { gint offset; GIRealInfo *rinfo = (GIRealInfo *)info; Header *header; ObjectBlob *blob; g_return_val_if_fail (info != NULL, 0); g_return_val_if_fail (GI_IS_OBJECT_INFO (info), 0); header = (Header *)rinfo->typelib->data; blob = (ObjectBlob *)&rinfo->typelib->data[rinfo->offset]; offset = g_object_info_get_field_offset(info, blob->n_fields) + blob->n_properties * header->property_blob_size; return _g_base_info_find_method ((GIBaseInfo*)info, offset, blob->n_methods, name); }
/** * g_object_info_get_property: * @info: a #GIObjectInfo * @n: index of property to get * * Obtain an object type property at index @n. * * Returns: (transfer full): the #GIPropertyInfo. Free the struct by calling * g_base_info_unref() when done. */ GIPropertyInfo * g_object_info_get_property (GIObjectInfo *info, gint n) { gint offset; GIRealInfo *rinfo = (GIRealInfo *)info; Header *header; ObjectBlob *blob; g_return_val_if_fail (info != NULL, NULL); g_return_val_if_fail (GI_IS_OBJECT_INFO (info), NULL); header = (Header *)rinfo->typelib->data; blob = (ObjectBlob *)&rinfo->typelib->data[rinfo->offset]; offset = g_object_info_get_field_offset(info, blob->n_fields) + n * header->property_blob_size; return (GIPropertyInfo *) g_info_new (GI_INFO_TYPE_PROPERTY, (GIBaseInfo*)info, rinfo->typelib, offset); }
static GISignalInfo * _pygi_lookup_signal_from_g_type (GType g_type, const gchar *signal_name) { GIRepository *repository; GIBaseInfo *info; GISignalInfo *signal_info = NULL; repository = g_irepository_get_default(); info = g_irepository_find_by_gtype (repository, g_type); if (info == NULL) return NULL; if (GI_IS_OBJECT_INFO (info)) signal_info = g_object_info_find_signal ((GIObjectInfo *) info, signal_name); else if (GI_IS_INTERFACE_INFO (info)) signal_info = g_interface_info_find_signal ((GIInterfaceInfo *) info, signal_name); g_base_info_unref (info); return signal_info; }