423 lines
15 KiB
C
423 lines
15 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimpcontainerview-cruft.c
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* Copyright (C) 2001-2025 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 <gegl.h>
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#include <gtk/gtk.h>
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#include "widgets-types.h"
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#include "core/gimpcontainer.h"
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#include "core/gimpcontext.h"
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#include "core/gimptreehandler.h"
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#include "gimpcontainerview.h"
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#include "gimpcontainerview-cruft.h"
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#include "gimpcontainerview-private.h"
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/* local function prototypes */
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static void gimp_container_view_clear_items (GimpContainerView *view);
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static void gimp_container_view_add_container (GimpContainerView *view,
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GimpContainer *container);
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static void gimp_container_view_add_foreach (GimpViewable *viewable,
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GimpContainerView *view);
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static void gimp_container_view_add (GimpContainerView *view,
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GimpViewable *viewable,
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GimpContainer *container);
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static void gimp_container_view_remove_container (GimpContainerView *view,
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GimpContainer *container);
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static void gimp_container_view_remove_foreach (GimpViewable *viewable,
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GimpContainerView *view);
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static void gimp_container_view_remove (GimpContainerView *view,
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GimpViewable *viewable,
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GimpContainer *container);
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static void gimp_container_view_reorder (GimpContainerView *view,
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GimpViewable *viewable,
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gint old_index,
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gint new_index,
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GimpContainer *container);
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static void gimp_container_view_freeze (GimpContainerView *view,
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GimpContainer *container);
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static void gimp_container_view_thaw (GimpContainerView *view,
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GimpContainer *container);
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static void gimp_container_view_name_changed (GimpViewable *viewable,
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GimpContainerView *view);
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static void gimp_container_view_expanded_changed (GimpViewable *viewable,
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GimpContainerView *view);
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/* public functions */
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void
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_gimp_container_view_connect_cruft (GimpContainerView *view)
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{
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GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view);
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if (! gimp_container_frozen (private->container))
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gimp_container_view_add_container (view, private->container);
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g_signal_connect_object (private->container, "freeze",
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G_CALLBACK (gimp_container_view_freeze),
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view,
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G_CONNECT_SWAPPED);
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g_signal_connect_object (private->container, "thaw",
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G_CALLBACK (gimp_container_view_thaw),
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view,
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G_CONNECT_SWAPPED);
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}
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void
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_gimp_container_view_disconnect_cruft (GimpContainerView *view)
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{
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GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view);
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g_signal_handlers_disconnect_by_func (private->container,
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gimp_container_view_freeze,
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view);
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g_signal_handlers_disconnect_by_func (private->container,
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gimp_container_view_thaw,
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view);
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if (! gimp_container_frozen (private->container))
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gimp_container_view_remove_container (view, private->container);
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}
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void
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_gimp_container_view_real_clear_items (GimpContainerView *view)
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{
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GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view);
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g_hash_table_remove_all (private->item_hash);
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}
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gpointer
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_gimp_container_view_lookup (GimpContainerView *view,
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GimpViewable *viewable)
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{
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GimpContainerViewPrivate *private;
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g_return_val_if_fail (GIMP_IS_CONTAINER_VIEW (view), NULL);
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g_return_val_if_fail (viewable == NULL || GIMP_IS_VIEWABLE (viewable), NULL);
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/* we handle the NULL viewable here as a workaround for bug #149906 */
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if (! viewable)
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return NULL;
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private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view);
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return g_hash_table_lookup (private->item_hash, viewable);
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}
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gboolean
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_gimp_container_view_contains (GimpContainerView *view,
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GList *viewables)
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{
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GimpContainerViewPrivate *private;
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GList *iter;
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g_return_val_if_fail (GIMP_IS_CONTAINER_VIEW (view), FALSE);
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g_return_val_if_fail (viewables, FALSE);
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private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view);
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for (iter = viewables; iter; iter = iter->next)
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{
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if (! g_hash_table_contains (private->item_hash, iter->data))
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return FALSE;
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}
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return TRUE;
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}
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/* private functions */
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static void
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gimp_container_view_clear_items (GimpContainerView *view)
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{
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GIMP_CONTAINER_VIEW_GET_IFACE (view)->clear_items (view);
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}
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static void
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gimp_container_view_add_container (GimpContainerView *view,
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GimpContainer *container)
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{
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GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view);
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gimp_container_foreach (container,
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(GFunc) gimp_container_view_add_foreach,
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view);
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if (container == private->container)
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{
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GType child_type;
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GimpViewableClass *viewable_class;
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child_type = gimp_container_get_child_type (container);
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viewable_class = g_type_class_ref (child_type);
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private->name_changed_handler =
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gimp_tree_handler_connect (container,
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viewable_class->name_changed_signal,
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G_CALLBACK (gimp_container_view_name_changed),
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view);
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if (GIMP_CONTAINER_VIEW_GET_IFACE (view)->expand_item)
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{
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private->expanded_changed_handler =
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gimp_tree_handler_connect (container,
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"expanded-changed",
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G_CALLBACK (gimp_container_view_expanded_changed),
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view);
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}
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g_type_class_unref (viewable_class);
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}
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g_signal_connect_object (container, "add",
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G_CALLBACK (gimp_container_view_add),
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view,
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G_CONNECT_SWAPPED);
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g_signal_connect_object (container, "remove",
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G_CALLBACK (gimp_container_view_remove),
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view,
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G_CONNECT_SWAPPED);
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g_signal_connect_object (container, "reorder",
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G_CALLBACK (gimp_container_view_reorder),
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view,
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G_CONNECT_SWAPPED);
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}
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static void
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gimp_container_view_add_foreach (GimpViewable *viewable,
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GimpContainerView *view)
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{
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GimpContainerViewInterface *view_iface;
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GimpContainerViewPrivate *private;
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GimpViewable *parent;
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GimpContainer *children;
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gpointer parent_insert_data = NULL;
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gpointer insert_data;
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view_iface = GIMP_CONTAINER_VIEW_GET_IFACE (view);
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private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view);
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parent = gimp_viewable_get_parent (viewable);
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if (parent)
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parent_insert_data = g_hash_table_lookup (private->item_hash, parent);
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insert_data = view_iface->insert_item (view, viewable,
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parent_insert_data, -1);
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g_hash_table_insert (private->item_hash, viewable, insert_data);
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children = gimp_viewable_get_children (viewable);
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if (children)
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gimp_container_view_add_container (view, children);
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}
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static void
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gimp_container_view_add (GimpContainerView *view,
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GimpViewable *viewable,
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GimpContainer *container)
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{
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GimpContainerViewInterface *view_iface;
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GimpContainerViewPrivate *private;
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GimpViewable *parent;
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GimpContainer *children;
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gpointer parent_insert_data = NULL;
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gpointer insert_data;
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gint index;
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view_iface = GIMP_CONTAINER_VIEW_GET_IFACE (view);
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private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view);
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index = gimp_container_get_child_index (container,
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GIMP_OBJECT (viewable));
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parent = gimp_viewable_get_parent (viewable);
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if (parent)
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parent_insert_data = g_hash_table_lookup (private->item_hash, parent);
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insert_data = view_iface->insert_item (view, viewable,
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parent_insert_data, index);
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g_hash_table_insert (private->item_hash, viewable, insert_data);
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if (view_iface->insert_items_after)
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view_iface->insert_items_after (view);
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children = gimp_viewable_get_children (viewable);
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if (children)
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gimp_container_view_add_container (view, children);
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}
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static void
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gimp_container_view_remove_container (GimpContainerView *view,
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GimpContainer *container)
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{
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GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view);
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g_object_ref (container);
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g_signal_handlers_disconnect_by_func (container,
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gimp_container_view_add,
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view);
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g_signal_handlers_disconnect_by_func (container,
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gimp_container_view_remove,
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view);
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g_signal_handlers_disconnect_by_func (container,
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gimp_container_view_reorder,
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view);
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if (container == private->container)
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{
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g_clear_pointer (&private->name_changed_handler,
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gimp_tree_handler_disconnect);
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g_clear_pointer (&private->expanded_changed_handler,
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gimp_tree_handler_disconnect);
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/* optimization: when the toplevel container gets removed, call
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* clear_items() which will get rid of all view widget stuff
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* *and* empty private->item_hash, so below call to
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* remove_foreach() will only disconnect all containers but not
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* remove all items individually (because they are gone from
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* item_hash).
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*/
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gimp_container_view_clear_items (view);
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}
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gimp_container_foreach (container,
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(GFunc) gimp_container_view_remove_foreach,
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view);
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g_object_unref (container);
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}
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static void
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gimp_container_view_remove_foreach (GimpViewable *viewable,
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GimpContainerView *view)
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{
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gimp_container_view_remove (view, viewable, NULL);
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}
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static void
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gimp_container_view_remove (GimpContainerView *view,
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GimpViewable *viewable,
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GimpContainer *unused)
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{
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GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view);
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GimpContainer *children;
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gpointer insert_data;
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children = gimp_viewable_get_children (viewable);
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if (children)
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gimp_container_view_remove_container (view, children);
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insert_data = g_hash_table_lookup (private->item_hash, viewable);
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if (insert_data)
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{
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GIMP_CONTAINER_VIEW_GET_IFACE (view)->remove_item (view, viewable,
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insert_data);
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g_hash_table_remove (private->item_hash, viewable);
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}
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}
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static void
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gimp_container_view_reorder (GimpContainerView *view,
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GimpViewable *viewable,
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gint old_index,
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gint new_index,
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GimpContainer *container)
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{
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GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view);
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gpointer insert_data;
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insert_data = g_hash_table_lookup (private->item_hash, viewable);
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if (insert_data)
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{
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GIMP_CONTAINER_VIEW_GET_IFACE (view)->reorder_item (view,
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viewable,
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new_index,
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insert_data);
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}
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}
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static void
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gimp_container_view_freeze (GimpContainerView *view,
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GimpContainer *container)
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{
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gimp_container_view_remove_container (view, container);
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}
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static void
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gimp_container_view_thaw (GimpContainerView *view,
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GimpContainer *container)
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{
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gimp_container_view_add_container (view, container);
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}
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static void
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gimp_container_view_name_changed (GimpViewable *viewable,
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GimpContainerView *view)
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{
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GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view);
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gpointer insert_data;
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insert_data = g_hash_table_lookup (private->item_hash, viewable);
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if (insert_data)
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{
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GIMP_CONTAINER_VIEW_GET_IFACE (view)->rename_item (view,
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viewable,
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insert_data);
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}
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}
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static void
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gimp_container_view_expanded_changed (GimpViewable *viewable,
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GimpContainerView *view)
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{
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GimpContainerViewPrivate *private = GIMP_CONTAINER_VIEW_GET_PRIVATE (view);
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gpointer insert_data;
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insert_data = g_hash_table_lookup (private->item_hash, viewable);
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if (insert_data)
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{
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GIMP_CONTAINER_VIEW_GET_IFACE (view)->expand_item (view,
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viewable,
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insert_data);
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}
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}
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