237 lines
8.2 KiB
C
237 lines
8.2 KiB
C
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/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* pikaitem-exclusive.c
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* Copyright (C) 2011 Michael Natterer <mitch@gimp.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include "core-types.h"
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#include "pikacontext.h"
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#include "pikadrawable.h"
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#include "pikaimage.h"
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#include "pikaimage-undo.h"
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#include "pikaimage-undo-push.h"
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#include "pikaitem.h"
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#include "pikaitem-exclusive.h"
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#include "pikaitemstack.h"
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#include "pikaitemtree.h"
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#include "pikaundostack.h"
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#include "pika-intl.h"
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static GList * pika_item_exclusive_get_ancestry (PikaItem *item);
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static void pika_item_exclusive_get_lists (PikaItem *item,
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PikaItemIsEnabledFunc is_enabled,
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PikaItemCanSetFunc can_set,
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PikaItemIsPropLocked is_prop_locked,
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gboolean only_selected,
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GList **on,
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GList **off);
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/* public functions */
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void
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pika_item_toggle_exclusive_visible (PikaItem *item,
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gboolean only_selected,
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PikaContext *context)
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{
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pika_item_toggle_exclusive (item,
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(PikaItemIsEnabledFunc) pika_item_is_visible,
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(PikaItemSetFunc) pika_item_set_visible,
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NULL,
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(PikaItemIsPropLocked) pika_item_get_lock_visibility,
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(PikaItemUndoPush) pika_image_undo_push_item_visibility,
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_("Set Item Exclusive Visibility"),
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PIKA_UNDO_GROUP_ITEM_VISIBILITY,
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only_selected, context);
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}
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void
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pika_item_toggle_exclusive (PikaItem *item,
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PikaItemIsEnabledFunc is_enabled,
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PikaItemSetFunc set_prop,
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PikaItemCanSetFunc can_set,
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PikaItemIsPropLocked is_prop_locked,
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PikaItemUndoPush undo_push,
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const gchar *undo_desc,
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PikaUndoType group_undo_type,
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gboolean only_selected,
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PikaContext *context)
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{
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GList *ancestry;
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GList *on;
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GList *off;
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GList *list;
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g_return_if_fail (PIKA_IS_ITEM (item));
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g_return_if_fail (pika_item_is_attached (item));
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g_return_if_fail (undo_desc != NULL);
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g_return_if_fail (context == NULL || PIKA_IS_CONTEXT (context));
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ancestry = pika_item_exclusive_get_ancestry (item);
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pika_item_exclusive_get_lists (item, is_enabled, can_set, is_prop_locked,
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only_selected, &on, &off);
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if (on || off || (! is_enabled (item) && (can_set == NULL || can_set (item))))
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{
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PikaImage *image = pika_item_get_image (item);
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PikaUndo *undo;
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gboolean push_undo = TRUE;
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undo = pika_image_undo_can_compress (image, PIKA_TYPE_UNDO_STACK,
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group_undo_type);
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/* Use the undo description as the undo object key, as we should
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* assume that a same undo description means the same exclusive
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* action.
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*/
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if (undo && (g_object_get_data (G_OBJECT (undo), undo_desc) ==
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(gpointer) item))
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push_undo = FALSE;
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if (push_undo)
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{
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if (pika_image_undo_group_start (image,
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group_undo_type,
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undo_desc))
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{
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undo = pika_image_undo_can_compress (image, PIKA_TYPE_UNDO_STACK,
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group_undo_type);
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if (undo)
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g_object_set_data (G_OBJECT (undo), undo_desc, (gpointer) item);
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}
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for (list = ancestry; list; list = g_list_next (list))
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undo_push (image, NULL, list->data);
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for (list = on; list; list = g_list_next (list))
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undo_push (image, NULL, list->data);
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for (list = off; list; list = g_list_next (list))
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undo_push (image, NULL, list->data);
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pika_image_undo_group_end (image);
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}
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else if (context)
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{
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pika_undo_refresh_preview (undo, context);
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}
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for (list = ancestry; list; list = g_list_next (list))
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set_prop (list->data, TRUE, FALSE);
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if (on)
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{
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for (list = on; list; list = g_list_next (list))
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set_prop (list->data, FALSE, FALSE);
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}
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else if (off)
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{
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for (list = off; list; list = g_list_next (list))
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set_prop (list->data, TRUE, FALSE);
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}
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g_list_free (on);
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g_list_free (off);
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}
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g_list_free (ancestry);
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}
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/* private functions */
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static GList *
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pika_item_exclusive_get_ancestry (PikaItem *item)
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{
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PikaViewable *parent;
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GList *ancestry = NULL;
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for (parent = PIKA_VIEWABLE (item);
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parent;
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parent = pika_viewable_get_parent (parent))
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{
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ancestry = g_list_prepend (ancestry, parent);
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}
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return ancestry;
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}
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static void
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pika_item_exclusive_get_lists (PikaItem *item,
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PikaItemIsEnabledFunc is_enabled,
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PikaItemCanSetFunc can_set,
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PikaItemIsPropLocked is_prop_locked,
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gboolean only_selected,
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GList **on,
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GList **off)
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{
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PikaImage *image = NULL;
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PikaItemTree *tree;
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GList *items;
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GList *list;
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*on = NULL;
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*off = NULL;
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tree = pika_item_get_tree (item);
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items = pika_item_stack_get_item_list (PIKA_ITEM_STACK (tree->container));
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if (only_selected)
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image = pika_item_get_image (item);
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for (list = items; list; list = g_list_next (list))
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{
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PikaItem *other = list->data;
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if (other != item &&
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/* Don't include item with visibility locks. */
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(is_prop_locked == NULL || ! is_prop_locked (other)) &&
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/* Don't include item which can be changed. */
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(can_set == NULL || can_set (other)) &&
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/* Do we care only about selected drawables? */
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(! only_selected || pika_image_is_selected_drawable (image,
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PIKA_DRAWABLE (other))) &&
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/* We are only interested in same level items unless
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* @only_selected is TRUE. */
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(only_selected ||
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pika_viewable_get_parent (PIKA_VIEWABLE (other)) ==
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pika_viewable_get_parent (PIKA_VIEWABLE (item))))
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{
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if (is_enabled (other))
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*on = g_list_prepend (*on, other);
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else
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*off = g_list_prepend (*off, other);
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}
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}
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g_list_free (items);
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}
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