mirror of https://github.com/GNOME/gimp.git
331 lines
8.2 KiB
C
331 lines
8.2 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
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*
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* gimpitemstack.c
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* Copyright (C) 2008 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 <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <string.h>
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#include <gegl.h>
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#include "core-types.h"
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#include "gimpitem.h"
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#include "gimpitemstack.h"
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/* local function prototypes */
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static GObject * gimp_item_stack_constructor (GType type,
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guint n_params,
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GObjectConstructParam *params);
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static void gimp_item_stack_add (GimpContainer *container,
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GimpObject *object);
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static void gimp_item_stack_remove (GimpContainer *container,
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GimpObject *object);
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G_DEFINE_TYPE (GimpItemStack, gimp_item_stack, GIMP_TYPE_LIST)
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#define parent_class gimp_item_stack_parent_class
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static void
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gimp_item_stack_class_init (GimpItemStackClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GimpContainerClass *container_class = GIMP_CONTAINER_CLASS (klass);
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object_class->constructor = gimp_item_stack_constructor;
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container_class->add = gimp_item_stack_add;
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container_class->remove = gimp_item_stack_remove;
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}
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static void
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gimp_item_stack_init (GimpItemStack *stack)
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{
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}
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static GObject *
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gimp_item_stack_constructor (GType type,
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guint n_params,
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GObjectConstructParam *params)
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{
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GObject *object;
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GimpContainer *container;
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object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
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container = GIMP_CONTAINER (object);
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g_assert (g_type_is_a (gimp_container_get_children_type (container),
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GIMP_TYPE_ITEM));
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return object;
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}
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static void
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gimp_item_stack_add (GimpContainer *container,
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GimpObject *object)
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{
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g_object_ref_sink (object);
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GIMP_CONTAINER_CLASS (parent_class)->add (container, object);
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g_object_unref (object);
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}
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static void
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gimp_item_stack_remove (GimpContainer *container,
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GimpObject *object)
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{
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GIMP_CONTAINER_CLASS (parent_class)->remove (container, object);
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}
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/* public functions */
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GimpContainer *
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gimp_item_stack_new (GType item_type)
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{
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g_return_val_if_fail (g_type_is_a (item_type, GIMP_TYPE_ITEM), NULL);
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return g_object_new (GIMP_TYPE_ITEM_STACK,
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"name", g_type_name (item_type),
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"children-type", item_type,
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"policy", GIMP_CONTAINER_POLICY_STRONG,
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"unique-names", TRUE,
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NULL);
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}
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gint
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gimp_item_stack_get_n_items (GimpItemStack *stack)
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{
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GList *list;
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gint n_items = 0;
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g_return_val_if_fail (GIMP_IS_ITEM_STACK (stack), 0);
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for (list = GIMP_LIST (stack)->list; list; list = g_list_next (list))
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{
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GimpItem *item = list->data;
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GimpContainer *children;
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n_items++;
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children = gimp_viewable_get_children (GIMP_VIEWABLE (item));
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if (children)
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n_items += gimp_item_stack_get_n_items (GIMP_ITEM_STACK (children));
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}
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return n_items;
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}
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gboolean
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gimp_item_stack_is_flat (GimpItemStack *stack)
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{
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GList *list;
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g_return_val_if_fail (GIMP_IS_ITEM_STACK (stack), TRUE);
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for (list = GIMP_LIST (stack)->list; list; list = g_list_next (list))
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{
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GimpViewable *viewable = list->data;
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if (gimp_viewable_get_children (viewable))
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return FALSE;
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}
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return TRUE;
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}
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GList *
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gimp_item_stack_get_item_iter (GimpItemStack *stack)
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{
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g_return_val_if_fail (GIMP_IS_ITEM_STACK (stack), NULL);
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return GIMP_LIST (stack)->list;
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}
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GList *
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gimp_item_stack_get_item_list (GimpItemStack *stack)
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{
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GList *list;
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GList *result = NULL;
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g_return_val_if_fail (GIMP_IS_ITEM_STACK (stack), NULL);
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for (list = GIMP_LIST (stack)->list;
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list;
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list = g_list_next (list))
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{
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GimpViewable *viewable = list->data;
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GimpContainer *children;
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result = g_list_prepend (result, viewable);
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children = gimp_viewable_get_children (viewable);
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if (children)
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{
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GList *child_list;
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child_list = gimp_item_stack_get_item_list (GIMP_ITEM_STACK (children));
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while (child_list)
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{
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result = g_list_prepend (result, child_list->data);
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child_list = g_list_remove (child_list, child_list->data);
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}
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}
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}
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return g_list_reverse (result);
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}
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GimpItem *
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gimp_item_stack_get_item_by_tattoo (GimpItemStack *stack,
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GimpTattoo tattoo)
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{
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GList *list;
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g_return_val_if_fail (GIMP_IS_ITEM_STACK (stack), NULL);
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for (list = GIMP_LIST (stack)->list; list; list = g_list_next (list))
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{
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GimpItem *item = list->data;
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GimpContainer *children;
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if (gimp_item_get_tattoo (item) == tattoo)
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return item;
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children = gimp_viewable_get_children (GIMP_VIEWABLE (item));
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if (children)
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{
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item = gimp_item_stack_get_item_by_tattoo (GIMP_ITEM_STACK (children),
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tattoo);
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if (item)
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return item;
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}
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}
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return NULL;
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}
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GimpItem *
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gimp_item_stack_get_item_by_name (GimpItemStack *stack,
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const gchar *name)
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{
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GList *list;
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g_return_val_if_fail (GIMP_IS_ITEM_STACK (stack), NULL);
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for (list = GIMP_LIST (stack)->list; list; list = g_list_next (list))
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{
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GimpItem *item = list->data;
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GimpContainer *children;
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if (! strcmp (gimp_object_get_name (item), name))
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return item;
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children = gimp_viewable_get_children (GIMP_VIEWABLE (item));
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if (children)
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{
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item = gimp_item_stack_get_item_by_name (GIMP_ITEM_STACK (children),
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name);
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if (item)
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return item;
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}
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}
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return NULL;
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}
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GimpItem *
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gimp_item_stack_get_parent_by_path (GimpItemStack *stack,
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GList *path,
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gint *index)
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{
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GimpItem *parent = NULL;
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guint32 i;
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g_return_val_if_fail (GIMP_IS_ITEM_STACK (stack), NULL);
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g_return_val_if_fail (path != NULL, NULL);
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i = GPOINTER_TO_UINT (path->data);
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if (index)
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*index = i;
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while (path->next)
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{
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GimpObject *child;
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GimpContainer *children;
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child = gimp_container_get_child_by_index (GIMP_CONTAINER (stack), i);
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g_return_val_if_fail (GIMP_IS_ITEM (child), parent);
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children = gimp_viewable_get_children (GIMP_VIEWABLE (child));
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g_return_val_if_fail (GIMP_IS_ITEM_STACK (children), parent);
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parent = GIMP_ITEM (child);
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stack = GIMP_ITEM_STACK (children);
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path = path->next;
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i = GPOINTER_TO_UINT (path->data);
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if (index)
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*index = i;
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}
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return parent;
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}
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static void
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gimp_item_stack_invalidate_preview (GimpViewable *viewable)
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{
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GimpContainer *children = gimp_viewable_get_children (viewable);
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if (children)
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gimp_item_stack_invalidate_previews (GIMP_ITEM_STACK (children));
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gimp_viewable_invalidate_preview (viewable);
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}
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void
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gimp_item_stack_invalidate_previews (GimpItemStack *stack)
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{
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g_return_if_fail (GIMP_IS_ITEM_STACK (stack));
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gimp_container_foreach (GIMP_CONTAINER (stack),
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(GFunc) gimp_item_stack_invalidate_preview,
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NULL);
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}
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