gimp/app/core/gimpitemstack.c

331 lines
8.2 KiB
C

/* 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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include "core-types.h"
#include "gimpitem.h"
#include "gimpitemstack.h"
/* local function prototypes */
static GObject * gimp_item_stack_constructor (GType type,
guint n_params,
GObjectConstructParam *params);
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_LIST)
#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->constructor = gimp_item_stack_constructor;
container_class->add = gimp_item_stack_add;
container_class->remove = gimp_item_stack_remove;
}
static void
gimp_item_stack_init (GimpItemStack *stack)
{
}
static GObject *
gimp_item_stack_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GObject *object;
GimpContainer *container;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
container = GIMP_CONTAINER (object);
g_assert (g_type_is_a (gimp_container_get_children_type (container),
GIMP_TYPE_ITEM));
return object;
}
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,
"unique-names", TRUE,
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)->list; 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)->list; 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)->list;
}
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)->list;
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)->list; 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_name (GimpItemStack *stack,
const gchar *name)
{
GList *list;
g_return_val_if_fail (GIMP_IS_ITEM_STACK (stack), NULL);
for (list = GIMP_LIST (stack)->list; list; list = g_list_next (list))
{
GimpItem *item = list->data;
GimpContainer *children;
if (! strcmp (gimp_object_get_name (item), name))
return item;
children = gimp_viewable_get_children (GIMP_VIEWABLE (item));
if (children)
{
item = gimp_item_stack_get_item_by_name (GIMP_ITEM_STACK (children),
name);
if (item)
return item;
}
}
return NULL;
}
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_invalidate_preview (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_invalidate_preview,
NULL);
}