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-rw-r--r--app/core/gimpitemstack.c348
1 files changed, 348 insertions, 0 deletions
diff --git a/app/core/gimpitemstack.c b/app/core/gimpitemstack.c
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+++ b/app/core/gimpitemstack.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
+ *
+ * gimpitemstack.c
+ * Copyright (C) 2008 Michael Natterer <mitch@gimp.org>
+ *
+ * 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 <string.h>
+
+#include <cairo.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gegl.h>
+
+#include "libgimpcolor/gimpcolor.h"
+
+#include "core-types.h"
+
+#include "gimpitem.h"
+#include "gimpitemstack.h"
+
+
+/* local function prototypes */
+
+static void gimp_item_stack_constructed (GObject *object);
+
+static void gimp_item_stack_add (GimpContainer *container,
+ GimpObject *object);
+static void gimp_item_stack_remove (GimpContainer *container,
+ GimpObject *object);
+
+
+G_DEFINE_TYPE (GimpItemStack, gimp_item_stack, GIMP_TYPE_FILTER_STACK)
+
+#define parent_class gimp_item_stack_parent_class
+
+
+static void
+gimp_item_stack_class_init (GimpItemStackClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GimpContainerClass *container_class = GIMP_CONTAINER_CLASS (klass);
+
+ object_class->constructed = gimp_item_stack_constructed;
+
+ container_class->add = gimp_item_stack_add;
+ container_class->remove = gimp_item_stack_remove;
+}
+
+static void
+gimp_item_stack_init (GimpItemStack *stack)
+{
+}
+
+static void
+gimp_item_stack_constructed (GObject *object)
+{
+ GimpContainer *container = GIMP_CONTAINER (object);
+
+ G_OBJECT_CLASS (parent_class)->constructed (object);
+
+ gimp_assert (g_type_is_a (gimp_container_get_children_type (container),
+ GIMP_TYPE_ITEM));
+}
+
+static void
+gimp_item_stack_add (GimpContainer *container,
+ GimpObject *object)
+{
+ g_object_ref_sink (object);
+
+ GIMP_CONTAINER_CLASS (parent_class)->add (container, object);
+
+ g_object_unref (object);
+}
+
+static void
+gimp_item_stack_remove (GimpContainer *container,
+ GimpObject *object)
+{
+ GIMP_CONTAINER_CLASS (parent_class)->remove (container, object);
+}
+
+
+/* public functions */
+
+GimpContainer *
+gimp_item_stack_new (GType item_type)
+{
+ g_return_val_if_fail (g_type_is_a (item_type, GIMP_TYPE_ITEM), NULL);
+
+ return g_object_new (GIMP_TYPE_ITEM_STACK,
+ "name", g_type_name (item_type),
+ "children-type", item_type,
+ "policy", GIMP_CONTAINER_POLICY_STRONG,
+ NULL);
+}
+
+gint
+gimp_item_stack_get_n_items (GimpItemStack *stack)
+{
+ GList *list;
+ gint n_items = 0;
+
+ g_return_val_if_fail (GIMP_IS_ITEM_STACK (stack), 0);
+
+ for (list = GIMP_LIST (stack)->queue->head; list; list = g_list_next (list))
+ {
+ GimpItem *item = list->data;
+ GimpContainer *children;
+
+ n_items++;
+
+ children = gimp_viewable_get_children (GIMP_VIEWABLE (item));
+
+ if (children)
+ n_items += gimp_item_stack_get_n_items (GIMP_ITEM_STACK (children));
+ }
+
+ return n_items;
+}
+
+gboolean
+gimp_item_stack_is_flat (GimpItemStack *stack)
+{
+ GList *list;
+
+ g_return_val_if_fail (GIMP_IS_ITEM_STACK (stack), TRUE);
+
+ for (list = GIMP_LIST (stack)->queue->head; list; list = g_list_next (list))
+ {
+ GimpViewable *viewable = list->data;
+
+ if (gimp_viewable_get_children (viewable))
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+GList *
+gimp_item_stack_get_item_iter (GimpItemStack *stack)
+{
+ g_return_val_if_fail (GIMP_IS_ITEM_STACK (stack), NULL);
+
+ return GIMP_LIST (stack)->queue->head;
+}
+
+GList *
+gimp_item_stack_get_item_list (GimpItemStack *stack)
+{
+ GList *list;
+ GList *result = NULL;
+
+ g_return_val_if_fail (GIMP_IS_ITEM_STACK (stack), NULL);
+
+ for (list = GIMP_LIST (stack)->queue->head;
+ list;
+ list = g_list_next (list))
+ {
+ GimpViewable *viewable = list->data;
+ GimpContainer *children;
+
+ result = g_list_prepend (result, viewable);
+
+ children = gimp_viewable_get_children (viewable);
+
+ if (children)
+ {
+ GList *child_list;
+
+ child_list = gimp_item_stack_get_item_list (GIMP_ITEM_STACK (children));
+
+ while (child_list)
+ {
+ result = g_list_prepend (result, child_list->data);
+
+ child_list = g_list_remove (child_list, child_list->data);
+ }
+ }
+ }
+
+ return g_list_reverse (result);
+}
+
+GimpItem *
+gimp_item_stack_get_item_by_tattoo (GimpItemStack *stack,
+ GimpTattoo tattoo)
+{
+ GList *list;
+
+ g_return_val_if_fail (GIMP_IS_ITEM_STACK (stack), NULL);
+
+ for (list = GIMP_LIST (stack)->queue->head; list; list = g_list_next (list))
+ {
+ GimpItem *item = list->data;
+ GimpContainer *children;
+
+ if (gimp_item_get_tattoo (item) == tattoo)
+ return item;
+
+ children = gimp_viewable_get_children (GIMP_VIEWABLE (item));
+
+ if (children)
+ {
+ item = gimp_item_stack_get_item_by_tattoo (GIMP_ITEM_STACK (children),
+ tattoo);
+
+ if (item)
+ return item;
+ }
+ }
+
+ return NULL;
+}
+
+GimpItem *
+gimp_item_stack_get_item_by_path (GimpItemStack *stack,
+ GList *path)
+{
+ GimpContainer *container;
+ GimpItem *item = NULL;
+
+ g_return_val_if_fail (GIMP_IS_ITEM_STACK (stack), NULL);
+ g_return_val_if_fail (path != NULL, NULL);
+
+ container = GIMP_CONTAINER (stack);
+
+ while (path)
+ {
+ guint32 i = GPOINTER_TO_UINT (path->data);
+
+ item = GIMP_ITEM (gimp_container_get_child_by_index (container, i));
+
+ g_return_val_if_fail (GIMP_IS_ITEM (item), item);
+
+ if (path->next)
+ {
+ container = gimp_viewable_get_children (GIMP_VIEWABLE (item));
+
+ g_return_val_if_fail (GIMP_IS_ITEM_STACK (container), item);
+ }
+
+ path = path->next;
+ }
+
+ return item;
+}
+
+GimpItem *
+gimp_item_stack_get_parent_by_path (GimpItemStack *stack,
+ GList *path,
+ gint *index)
+{
+ GimpItem *parent = NULL;
+ guint32 i;
+
+ g_return_val_if_fail (GIMP_IS_ITEM_STACK (stack), NULL);
+ g_return_val_if_fail (path != NULL, NULL);
+
+ i = GPOINTER_TO_UINT (path->data);
+
+ if (index)
+ *index = i;
+
+ while (path->next)
+ {
+ GimpObject *child;
+ GimpContainer *children;
+
+ child = gimp_container_get_child_by_index (GIMP_CONTAINER (stack), i);
+
+ g_return_val_if_fail (GIMP_IS_ITEM (child), parent);
+
+ children = gimp_viewable_get_children (GIMP_VIEWABLE (child));
+
+ g_return_val_if_fail (GIMP_IS_ITEM_STACK (children), parent);
+
+ parent = GIMP_ITEM (child);
+ stack = GIMP_ITEM_STACK (children);
+
+ path = path->next;
+
+ i = GPOINTER_TO_UINT (path->data);
+
+ if (index)
+ *index = i;
+ }
+
+ return parent;
+}
+
+static void
+gimp_item_stack_viewable_invalidate_previews (GimpViewable *viewable)
+{
+ GimpContainer *children = gimp_viewable_get_children (viewable);
+
+ if (children)
+ gimp_item_stack_invalidate_previews (GIMP_ITEM_STACK (children));
+
+ gimp_viewable_invalidate_preview (viewable);
+}
+
+void
+gimp_item_stack_invalidate_previews (GimpItemStack *stack)
+{
+ g_return_if_fail (GIMP_IS_ITEM_STACK (stack));
+
+ gimp_container_foreach (GIMP_CONTAINER (stack),
+ (GFunc) gimp_item_stack_viewable_invalidate_previews,
+ NULL);
+}
+
+static void
+gimp_item_stack_viewable_profile_changed (GimpViewable *viewable)
+{
+ GimpContainer *children = gimp_viewable_get_children (viewable);
+
+ if (children)
+ gimp_item_stack_profile_changed (GIMP_ITEM_STACK (children));
+
+ if (GIMP_IS_COLOR_MANAGED (viewable))
+ gimp_color_managed_profile_changed (GIMP_COLOR_MANAGED (viewable));
+}
+
+void
+gimp_item_stack_profile_changed (GimpItemStack *stack)
+{
+ g_return_if_fail (GIMP_IS_ITEM_STACK (stack));
+
+ gimp_container_foreach (GIMP_CONTAINER (stack),
+ (GFunc) gimp_item_stack_viewable_profile_changed,
+ NULL);
+}
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