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-rw-r--r--app/core/gimptreeproxy.c634
1 files changed, 634 insertions, 0 deletions
diff --git a/app/core/gimptreeproxy.c b/app/core/gimptreeproxy.c
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--- /dev/null
+++ b/app/core/gimptreeproxy.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimptreeproxy.c
+ * Copyright (C) 2020 Ell
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gegl.h>
+
+#include "libgimpbase/gimpbase.h"
+
+#include "core-types.h"
+
+#include "gimpviewable.h"
+#include "gimptreeproxy.h"
+
+
+enum
+{
+ PROP_0,
+ PROP_CONTAINER,
+ PROP_FLAT
+};
+
+
+struct _GimpTreeProxyPrivate
+{
+ GimpContainer *container;
+ gboolean flat;
+};
+
+
+/* local function prototypes */
+
+static void gimp_tree_proxy_dispose (GObject *object);
+static void gimp_tree_proxy_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gimp_tree_proxy_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+static void gimp_tree_proxy_container_add (GimpContainer *container,
+ GimpObject *object,
+ GimpTreeProxy *tree_proxy);
+static void gimp_tree_proxy_container_remove (GimpContainer *container,
+ GimpObject *object,
+ GimpTreeProxy *tree_proxy);
+static void gimp_tree_proxy_container_reorder (GimpContainer *container,
+ GimpObject *object,
+ gint new_index,
+ GimpTreeProxy *tree_proxy);
+static void gimp_tree_proxy_container_freeze (GimpContainer *container,
+ GimpTreeProxy *tree_proxy);
+static void gimp_tree_proxy_container_thaw (GimpContainer *container,
+ GimpTreeProxy *tree_proxy);
+
+static gint gimp_tree_proxy_add_container (GimpTreeProxy *tree_proxy,
+ GimpContainer *container,
+ gint index);
+static void gimp_tree_proxy_remove_container (GimpTreeProxy *tree_proxy,
+ GimpContainer *container);
+
+static gint gimp_tree_proxy_add_object (GimpTreeProxy *tree_proxy,
+ GimpObject *object,
+ gint index);
+static void gimp_tree_proxy_remove_object (GimpTreeProxy *tree_proxy,
+ GimpObject *object);
+
+static gint gimp_tree_proxy_find_container (GimpTreeProxy *tree_proxy,
+ GimpContainer *container);
+static gint gimp_tree_proxy_find_object (GimpContainer *container,
+ GimpObject *object);
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (GimpTreeProxy, gimp_tree_proxy, GIMP_TYPE_LIST)
+
+#define parent_class gimp_tree_proxy_parent_class
+
+
+/* private functions */
+
+static void
+gimp_tree_proxy_class_init (GimpTreeProxyClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->dispose = gimp_tree_proxy_dispose;
+ object_class->set_property = gimp_tree_proxy_set_property;
+ object_class->get_property = gimp_tree_proxy_get_property;
+
+ g_object_class_install_property (object_class, PROP_CONTAINER,
+ g_param_spec_object ("container", NULL, NULL,
+ GIMP_TYPE_CONTAINER,
+ GIMP_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class, PROP_FLAT,
+ g_param_spec_boolean ("flat", NULL, NULL,
+ FALSE,
+ GIMP_PARAM_READWRITE));
+}
+
+static void
+gimp_tree_proxy_init (GimpTreeProxy *tree_proxy)
+{
+ tree_proxy->priv = gimp_tree_proxy_get_instance_private (tree_proxy);
+}
+
+static void
+gimp_tree_proxy_dispose (GObject *object)
+{
+ GimpTreeProxy *tree_proxy = GIMP_TREE_PROXY (object);
+
+ gimp_tree_proxy_set_container (tree_proxy, NULL);
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);;
+}
+
+static void
+gimp_tree_proxy_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GimpTreeProxy *tree_proxy = GIMP_TREE_PROXY (object);
+
+ switch (property_id)
+ {
+ case PROP_CONTAINER:
+ gimp_tree_proxy_set_container (tree_proxy, g_value_get_object (value));
+ break;
+
+ case PROP_FLAT:
+ gimp_tree_proxy_set_flat (tree_proxy, g_value_get_boolean (value));
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_tree_proxy_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GimpTreeProxy *tree_proxy = GIMP_TREE_PROXY (object);
+
+ switch (property_id)
+ {
+ case PROP_CONTAINER:
+ g_value_set_object (value, tree_proxy->priv->container);
+ break;
+
+ case PROP_FLAT:
+ g_value_set_boolean (value, tree_proxy->priv->flat);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_tree_proxy_container_add (GimpContainer *container,
+ GimpObject *object,
+ GimpTreeProxy *tree_proxy)
+{
+ gint index;
+
+ if (tree_proxy->priv->flat)
+ {
+ index = gimp_tree_proxy_find_container (tree_proxy, container) +
+ gimp_tree_proxy_find_object (container, object);
+ }
+ else
+ {
+ index = gimp_container_get_child_index (container, object);
+ }
+
+ gimp_tree_proxy_add_object (tree_proxy, object, index);
+}
+
+static void
+gimp_tree_proxy_container_remove (GimpContainer *container,
+ GimpObject *object,
+ GimpTreeProxy *tree_proxy)
+{
+ gimp_tree_proxy_remove_object (tree_proxy, object);
+}
+
+static void
+gimp_tree_proxy_container_reorder (GimpContainer *container,
+ GimpObject *object,
+ gint new_index,
+ GimpTreeProxy *tree_proxy)
+{
+ gint index;
+
+ if (tree_proxy->priv->flat)
+ {
+ index = gimp_tree_proxy_find_container (tree_proxy, container) +
+ gimp_tree_proxy_find_object (container, object);
+
+ if (gimp_viewable_get_children (GIMP_VIEWABLE (object)))
+ {
+ gimp_container_freeze (GIMP_CONTAINER (tree_proxy));
+
+ gimp_tree_proxy_remove_object (tree_proxy, object);
+ gimp_tree_proxy_add_object (tree_proxy, object, index);
+
+ gimp_container_thaw (GIMP_CONTAINER (tree_proxy));
+
+ return;
+ }
+ }
+ else
+ {
+ index = new_index;
+ }
+
+ gimp_container_reorder (GIMP_CONTAINER (tree_proxy), object, index);
+}
+
+static void
+gimp_tree_proxy_container_freeze (GimpContainer *container,
+ GimpTreeProxy *tree_proxy)
+{
+ gimp_container_freeze (GIMP_CONTAINER (tree_proxy));
+}
+
+static void
+gimp_tree_proxy_container_thaw (GimpContainer *container,
+ GimpTreeProxy *tree_proxy)
+{
+ gimp_container_thaw (GIMP_CONTAINER (tree_proxy));
+}
+
+typedef struct
+{
+ GimpTreeProxy *tree_proxy;
+ gint index;
+} AddContainerData;
+
+static void
+gimp_tree_proxy_add_container_func (GimpObject *object,
+ AddContainerData *data)
+{
+ data->index = gimp_tree_proxy_add_object (data->tree_proxy,
+ object, data->index);
+}
+
+static gint
+gimp_tree_proxy_add_container (GimpTreeProxy *tree_proxy,
+ GimpContainer *container,
+ gint index)
+{
+ AddContainerData data;
+
+ g_signal_connect (container, "add",
+ G_CALLBACK (gimp_tree_proxy_container_add),
+ tree_proxy);
+ g_signal_connect (container, "remove",
+ G_CALLBACK (gimp_tree_proxy_container_remove),
+ tree_proxy);
+ g_signal_connect (container, "reorder",
+ G_CALLBACK (gimp_tree_proxy_container_reorder),
+ tree_proxy);
+ g_signal_connect (container, "freeze",
+ G_CALLBACK (gimp_tree_proxy_container_freeze),
+ tree_proxy);
+ g_signal_connect (container, "thaw",
+ G_CALLBACK (gimp_tree_proxy_container_thaw),
+ tree_proxy);
+
+ data.tree_proxy = tree_proxy;
+ data.index = index;
+
+ gimp_container_freeze (GIMP_CONTAINER (tree_proxy));
+
+ gimp_container_foreach (container,
+ (GFunc) gimp_tree_proxy_add_container_func,
+ &data);
+
+ gimp_container_thaw (GIMP_CONTAINER (tree_proxy));
+
+ return data.index;
+}
+
+static void
+gimp_tree_proxy_remove_container_func (GimpObject *object,
+ GimpTreeProxy *tree_proxy)
+{
+ gimp_tree_proxy_remove_object (tree_proxy, object);
+}
+
+static void
+gimp_tree_proxy_remove_container (GimpTreeProxy *tree_proxy,
+ GimpContainer *container)
+{
+ gimp_container_freeze (GIMP_CONTAINER (tree_proxy));
+
+ gimp_container_foreach (container,
+ (GFunc) gimp_tree_proxy_remove_container_func,
+ tree_proxy);
+
+ gimp_container_thaw (GIMP_CONTAINER (tree_proxy));
+
+ g_signal_handlers_disconnect_by_func (
+ container,
+ gimp_tree_proxy_container_add,
+ tree_proxy);
+ g_signal_handlers_disconnect_by_func (
+ container,
+ gimp_tree_proxy_container_remove,
+ tree_proxy);
+ g_signal_handlers_disconnect_by_func (
+ container,
+ gimp_tree_proxy_container_reorder,
+ tree_proxy);
+ g_signal_handlers_disconnect_by_func (
+ container,
+ gimp_tree_proxy_container_freeze,
+ tree_proxy);
+ g_signal_handlers_disconnect_by_func (
+ container,
+ gimp_tree_proxy_container_thaw,
+ tree_proxy);
+}
+
+static gint
+gimp_tree_proxy_add_object (GimpTreeProxy *tree_proxy,
+ GimpObject *object,
+ gint index)
+{
+ if (index == gimp_container_get_n_children (GIMP_CONTAINER (tree_proxy)))
+ index = -1;
+
+ if (tree_proxy->priv->flat)
+ {
+ GimpContainer *children;
+
+ children = gimp_viewable_get_children (GIMP_VIEWABLE (object));
+
+ if (children)
+ return gimp_tree_proxy_add_container (tree_proxy, children, index);
+ }
+
+ if (index >= 0)
+ {
+ gimp_container_insert (GIMP_CONTAINER (tree_proxy), object, index);
+
+ return index + 1;
+ }
+ else
+ {
+ gimp_container_add (GIMP_CONTAINER (tree_proxy), object);
+
+ return index;
+ }
+}
+
+static void
+gimp_tree_proxy_remove_object (GimpTreeProxy *tree_proxy,
+ GimpObject *object)
+{
+ if (tree_proxy->priv->flat)
+ {
+ GimpContainer *children;
+
+ children = gimp_viewable_get_children (GIMP_VIEWABLE (object));
+
+ if (children)
+ return gimp_tree_proxy_remove_container (tree_proxy, children);
+ }
+
+ gimp_container_remove (GIMP_CONTAINER (tree_proxy), object);
+}
+
+typedef struct
+{
+ GimpContainer *container;
+ gint index;
+} FindContainerData;
+
+static gboolean
+gimp_tree_proxy_find_container_search_func (GimpObject *object,
+ FindContainerData *data)
+{
+ GimpContainer *children;
+
+ children = gimp_viewable_get_children (GIMP_VIEWABLE (object));
+
+ if (children)
+ {
+ if (children == data->container)
+ return TRUE;
+
+ return gimp_container_search (
+ children,
+ (GimpContainerSearchFunc) gimp_tree_proxy_find_container_search_func,
+ data) != NULL;
+ }
+
+ data->index++;
+
+ return FALSE;
+}
+
+static gint
+gimp_tree_proxy_find_container (GimpTreeProxy *tree_proxy,
+ GimpContainer *container)
+{
+ FindContainerData data;
+
+ if (container == tree_proxy->priv->container)
+ return 0;
+
+ data.container = container;
+ data.index = 0;
+
+ if (gimp_container_search (
+ tree_proxy->priv->container,
+ (GimpContainerSearchFunc) gimp_tree_proxy_find_container_search_func,
+ &data))
+ {
+ return data.index;
+ }
+
+ g_return_val_if_reached (0);
+}
+
+typedef struct
+{
+ GimpObject *object;
+ gint index;
+} FindObjectData;
+
+static gboolean
+gimp_tree_proxy_find_object_search_func (GimpObject *object,
+ FindObjectData *data)
+{
+ GimpContainer *children;
+
+ if (object == data->object)
+ return TRUE;
+
+ children = gimp_viewable_get_children (GIMP_VIEWABLE (object));
+
+ if (children)
+ {
+ return gimp_container_search (
+ children,
+ (GimpContainerSearchFunc) gimp_tree_proxy_find_object_search_func,
+ data) != NULL;
+ }
+
+ data->index++;
+
+ return FALSE;
+}
+
+static gint
+gimp_tree_proxy_find_object (GimpContainer *container,
+ GimpObject *object)
+{
+ FindObjectData data;
+
+ data.object = object;
+ data.index = 0;
+
+ if (gimp_container_search (
+ container,
+ (GimpContainerSearchFunc) gimp_tree_proxy_find_object_search_func,
+ &data))
+ {
+ return data.index;
+ }
+
+ g_return_val_if_reached (0);
+}
+
+
+/* public functions */
+
+GimpContainer *
+gimp_tree_proxy_new (GType children_type)
+{
+ GTypeClass *children_class;
+
+ children_class = g_type_class_ref (children_type);
+
+ g_return_val_if_fail (G_TYPE_CHECK_CLASS_TYPE (children_class,
+ GIMP_TYPE_VIEWABLE),
+ NULL);
+
+ g_type_class_unref (children_class);
+
+ return g_object_new (GIMP_TYPE_TREE_PROXY,
+ "children-type", children_type,
+ "policy", GIMP_CONTAINER_POLICY_WEAK,
+ "append", TRUE,
+ NULL);
+}
+
+GimpContainer *
+gimp_tree_proxy_new_for_container (GimpContainer *container)
+{
+ GimpTreeProxy *tree_proxy;
+
+ g_return_val_if_fail (GIMP_IS_CONTAINER (container), NULL);
+
+ tree_proxy = GIMP_TREE_PROXY (
+ gimp_tree_proxy_new (gimp_container_get_children_type (container)));
+
+ gimp_tree_proxy_set_container (tree_proxy, container);
+
+ return GIMP_CONTAINER (tree_proxy);
+}
+
+void
+gimp_tree_proxy_set_container (GimpTreeProxy *tree_proxy,
+ GimpContainer *container)
+{
+ g_return_if_fail (GIMP_IS_TREE_PROXY (tree_proxy));
+ g_return_if_fail (container == NULL || GIMP_IS_CONTAINER (container));
+
+ if (container)
+ {
+ GTypeClass *children_class;
+
+ children_class = g_type_class_ref (
+ gimp_container_get_children_type (container));
+
+ g_return_if_fail (
+ G_TYPE_CHECK_CLASS_TYPE (
+ children_class,
+ gimp_container_get_children_type (GIMP_CONTAINER (tree_proxy))));
+
+ g_type_class_unref (children_class);
+ }
+
+ if (container != tree_proxy->priv->container)
+ {
+ gimp_container_freeze (GIMP_CONTAINER (tree_proxy));
+
+ if (tree_proxy->priv->container)
+ {
+ gimp_tree_proxy_remove_container (tree_proxy,
+ tree_proxy->priv->container);
+ }
+
+ g_set_object (&tree_proxy->priv->container, container);
+
+ if (tree_proxy->priv->container)
+ {
+ gimp_tree_proxy_add_container (tree_proxy,
+ tree_proxy->priv->container,
+ -1);
+ }
+
+ gimp_container_thaw (GIMP_CONTAINER (tree_proxy));
+
+ g_object_notify (G_OBJECT (tree_proxy), "container");
+ }
+}
+
+GimpContainer *
+gimp_tree_proxy_get_container (GimpTreeProxy *tree_proxy)
+{
+ g_return_val_if_fail (GIMP_IS_TREE_PROXY (tree_proxy), NULL);
+
+ return tree_proxy->priv->container;
+}
+
+void
+gimp_tree_proxy_set_flat (GimpTreeProxy *tree_proxy,
+ gboolean flat)
+{
+ g_return_if_fail (GIMP_IS_TREE_PROXY (tree_proxy));
+
+ if (flat != tree_proxy->priv->flat)
+ {
+ gimp_container_freeze (GIMP_CONTAINER (tree_proxy));
+
+ if (tree_proxy->priv->container)
+ {
+ gimp_tree_proxy_remove_container (tree_proxy,
+ tree_proxy->priv->container);
+ }
+
+ tree_proxy->priv->flat = flat;
+
+ if (tree_proxy->priv->container)
+ {
+ gimp_tree_proxy_add_container (tree_proxy,
+ tree_proxy->priv->container,
+ -1);
+ }
+
+ gimp_container_thaw (GIMP_CONTAINER (tree_proxy));
+
+ g_object_notify (G_OBJECT (tree_proxy), "flat");
+ }
+}
+
+gboolean
+gimp_tree_proxy_get_flat (GimpTreeProxy *tree_proxy)
+{
+ g_return_val_if_fail (GIMP_IS_TREE_PROXY (tree_proxy), FALSE);
+
+ return tree_proxy->priv->flat;
+}
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