/*! \brief Promote attributes from a complex OBJECT
* \par Function Description
* Selects promotable attributes from \a object, and returns a new
* #GList containing them (suitable for appending to a #PAGE).
*
* \param [in] toplevel The #TOPLEVEL environment.
* \param [in] object The complex #OBJECT to promote from.
* \return A #GList of promoted attributes.
*/
GList *o_complex_promote_attribs (TOPLEVEL *toplevel, OBJECT *object)
{
GList *promoted = NULL;
GList *promotable = NULL;
GList *iter = NULL;
promotable = o_complex_get_promotable (toplevel, object, FALSE);
/* Run through the attributes deciding if we want to keep them (in
* which case we copy them and make them invisible) or if we want to
* remove them. */
if (toplevel->keep_invisible) {
for (iter = promotable; iter != NULL; iter = g_list_next (iter)) {
OBJECT *o_kept = (OBJECT *) iter->data;
OBJECT *o_copy = o_object_copy (toplevel, o_kept);
o_set_visibility (toplevel, o_kept, INVISIBLE);
o_copy->parent = NULL;
promoted = g_list_prepend (promoted, o_copy);
}
promoted = g_list_reverse (promoted);
} else {
for (iter = promotable; iter != NULL; iter = g_list_next (iter)) {
OBJECT *o_removed = (OBJECT *) iter->data;
o_removed->parent = NULL;
object->complex->prim_objs =
g_list_remove (object->complex->prim_objs, o_removed);
}
promoted = promotable;
/* Invalidate the object's bounds since we may have
* stolen objects from inside it. */
o_bounds_invalidate (toplevel, object);
}
/* Attach promoted attributes to the original complex object */
o_attrib_attach_list (toplevel, promoted, object, TRUE);
return promoted;
}
/*! \brief Update a component.
*
* \par Function Description
* Updates \a o_current to the latest version of the symbol available
* in the symbol library, while preserving any attributes set in the
* current schematic. On success, returns the new OBJECT which
* replaces \a o_current on the page; \a o_current is deleted. On
* failure, returns NULL, and \a o_current is left unchanged.
*
* \param [in] w_current The GSCHEM_TOPLEVEL object.
* \param [in,out] o_current The OBJECT to be updated.
*
* \return the new OBJECT that replaces \a o_current.
*/
OBJECT *
o_update_component (GSCHEM_TOPLEVEL *w_current, OBJECT *o_current)
{
TOPLEVEL *toplevel = w_current->toplevel;
OBJECT *o_new;
PAGE *page;
GList *new_attribs;
GList *old_attribs;
GList *iter;
const CLibSymbol *clib;
g_return_val_if_fail (o_current != NULL, NULL);
g_return_val_if_fail (o_current->type == OBJ_COMPLEX, NULL);
g_return_val_if_fail (o_current->complex_basename != NULL, NULL);
page = o_get_page (toplevel, o_current);
/* This should be replaced with API to invalidate only the specific
* symbol name we want to update */
s_clib_flush_symbol_cache ();
clib = s_clib_get_symbol_by_name (o_current->complex_basename);
if (clib == NULL) {
s_log_message (_("Could not find symbol [%s] in library. Update failed.\n"),
o_current->complex_basename);
return NULL;
}
/* Unselect the old object. */
o_selection_remove (toplevel, page->selection_list, o_current);
/* Create new object and set embedded */
o_new = o_complex_new (toplevel, OBJ_COMPLEX, DEFAULT_COLOR,
o_current->complex->x,
o_current->complex->y,
o_current->complex->angle,
o_current->complex->mirror,
clib, o_current->complex_basename,
1);
if (o_complex_is_embedded (o_current)) {
o_embed (toplevel, o_new);
}
new_attribs = o_complex_promote_attribs (toplevel, o_new);
/* Cull any attributes from new COMPLEX that are already attached to
* old COMPLEX. Note that the new_attribs list is kept consistent by
* setting GList data pointers to NULL if their OBJECTs are
* culled. At the end, the new_attribs list is updated by removing
* all list items with NULL data. This is slightly magic, but
* works. */
for (iter = new_attribs; iter != NULL; iter = g_list_next (iter)) {
OBJECT *attr_new = iter->data;
gchar *name;
gchar *value;
g_assert (attr_new->type == OBJ_TEXT);
o_attrib_get_name_value (attr_new, &name, NULL);
value = o_attrib_search_attached_attribs_by_name (o_current, name, 0);
if (value != NULL) {
o_attrib_remove (toplevel, &o_new->attribs, attr_new);
s_delete_object (toplevel, attr_new);
iter->data = NULL;
}
g_free (name);
g_free (value);
}
new_attribs = g_list_remove_all (new_attribs, NULL);
/* Detach attributes from old OBJECT and attach to new OBJECT */
old_attribs = g_list_copy (o_current->attribs);
o_attrib_detach_all (toplevel, o_current);
o_attrib_attach_list (toplevel, old_attribs, o_new, 1);
g_list_free (old_attribs);
/* Add new attributes to page */
s_page_append_list (toplevel, page, new_attribs);
/* Update pinnumbers for current slot */
s_slot_update_object (toplevel, o_new);
/* Replace old OBJECT with new OBJECT */
s_page_replace (toplevel, page, o_current, o_new);
s_delete_object (toplevel, o_current);
/* Select new OBJECT */
o_selection_add (toplevel, page->selection_list, o_new);
/* mark the page as modified */
toplevel->page_current->CHANGED = 1;
o_undo_savestate (w_current, UNDO_ALL);
return o_new;
}
