PIKApp/app/core/pikaitemstack.c

353 lines
8.7 KiB
C
Raw Permalink Normal View History

2023-09-26 00:35:21 +02:00
/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
*
* pikaitemstack.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 "libpikacolor/pikacolor.h"
#include "core-types.h"
#include "pikaitem.h"
#include "pikaitemstack.h"
/* local function prototypes */
static void pika_item_stack_constructed (GObject *object);
static void pika_item_stack_add (PikaContainer *container,
PikaObject *object);
static void pika_item_stack_remove (PikaContainer *container,
PikaObject *object);
G_DEFINE_TYPE (PikaItemStack, pika_item_stack, PIKA_TYPE_FILTER_STACK)
#define parent_class pika_item_stack_parent_class
static void
pika_item_stack_class_init (PikaItemStackClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
PikaContainerClass *container_class = PIKA_CONTAINER_CLASS (klass);
object_class->constructed = pika_item_stack_constructed;
container_class->add = pika_item_stack_add;
container_class->remove = pika_item_stack_remove;
}
static void
pika_item_stack_init (PikaItemStack *stack)
{
}
static void
pika_item_stack_constructed (GObject *object)
{
PikaContainer *container = PIKA_CONTAINER (object);
G_OBJECT_CLASS (parent_class)->constructed (object);
pika_assert (g_type_is_a (pika_container_get_children_type (container),
PIKA_TYPE_ITEM));
}
static void
pika_item_stack_add (PikaContainer *container,
PikaObject *object)
{
g_object_ref_sink (object);
PIKA_CONTAINER_CLASS (parent_class)->add (container, object);
g_object_unref (object);
}
static void
pika_item_stack_remove (PikaContainer *container,
PikaObject *object)
{
PIKA_CONTAINER_CLASS (parent_class)->remove (container, object);
}
/* public functions */
PikaContainer *
pika_item_stack_new (GType item_type)
{
g_return_val_if_fail (g_type_is_a (item_type, PIKA_TYPE_ITEM), NULL);
return g_object_new (PIKA_TYPE_ITEM_STACK,
"name", g_type_name (item_type),
"children-type", item_type,
"policy", PIKA_CONTAINER_POLICY_STRONG,
NULL);
}
gint
pika_item_stack_get_n_items (PikaItemStack *stack)
{
GList *list;
gint n_items = 0;
g_return_val_if_fail (PIKA_IS_ITEM_STACK (stack), 0);
for (list = PIKA_LIST (stack)->queue->head; list; list = g_list_next (list))
{
PikaItem *item = list->data;
PikaContainer *children;
n_items++;
children = pika_viewable_get_children (PIKA_VIEWABLE (item));
if (children)
n_items += pika_item_stack_get_n_items (PIKA_ITEM_STACK (children));
}
return n_items;
}
gboolean
pika_item_stack_is_flat (PikaItemStack *stack)
{
GList *list;
g_return_val_if_fail (PIKA_IS_ITEM_STACK (stack), TRUE);
for (list = PIKA_LIST (stack)->queue->head; list; list = g_list_next (list))
{
PikaViewable *viewable = list->data;
if (pika_viewable_get_children (viewable))
return FALSE;
}
return TRUE;
}
GList *
pika_item_stack_get_item_iter (PikaItemStack *stack)
{
g_return_val_if_fail (PIKA_IS_ITEM_STACK (stack), NULL);
return PIKA_LIST (stack)->queue->head;
}
GList *
pika_item_stack_get_item_list (PikaItemStack *stack)
{
GList *list;
GList *result = NULL;
g_return_val_if_fail (PIKA_IS_ITEM_STACK (stack), NULL);
for (list = PIKA_LIST (stack)->queue->head;
list;
list = g_list_next (list))
{
PikaViewable *viewable = list->data;
PikaContainer *children;
result = g_list_prepend (result, viewable);
children = pika_viewable_get_children (viewable);
if (children)
{
GList *child_list;
child_list = pika_item_stack_get_item_list (PIKA_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);
}
PikaItem *
pika_item_stack_get_item_by_tattoo (PikaItemStack *stack,
PikaTattoo tattoo)
{
GList *list;
g_return_val_if_fail (PIKA_IS_ITEM_STACK (stack), NULL);
for (list = PIKA_LIST (stack)->queue->head; list; list = g_list_next (list))
{
PikaItem *item = list->data;
PikaContainer *children;
if (pika_item_get_tattoo (item) == tattoo)
return item;
children = pika_viewable_get_children (PIKA_VIEWABLE (item));
if (children)
{
item = pika_item_stack_get_item_by_tattoo (PIKA_ITEM_STACK (children),
tattoo);
if (item)
return item;
}
}
return NULL;
}
PikaItem *
pika_item_stack_get_item_by_path (PikaItemStack *stack,
GList *path)
{
PikaContainer *container;
PikaItem *item = NULL;
g_return_val_if_fail (PIKA_IS_ITEM_STACK (stack), NULL);
g_return_val_if_fail (path != NULL, NULL);
container = PIKA_CONTAINER (stack);
while (path)
{
guint32 i = GPOINTER_TO_UINT (path->data);
item = PIKA_ITEM (pika_container_get_child_by_index (container, i));
g_return_val_if_fail (PIKA_IS_ITEM (item), item);
if (path->next)
{
container = pika_viewable_get_children (PIKA_VIEWABLE (item));
g_return_val_if_fail (PIKA_IS_ITEM_STACK (container), item);
}
path = path->next;
}
return item;
}
PikaItem *
pika_item_stack_get_parent_by_path (PikaItemStack *stack,
GList *path,
gint *index)
{
PikaItem *parent = NULL;
guint32 i;
g_return_val_if_fail (PIKA_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)
{
PikaObject *child;
PikaContainer *children;
child = pika_container_get_child_by_index (PIKA_CONTAINER (stack), i);
g_return_val_if_fail (PIKA_IS_ITEM (child), parent);
children = pika_viewable_get_children (PIKA_VIEWABLE (child));
g_return_val_if_fail (PIKA_IS_ITEM_STACK (children), parent);
parent = PIKA_ITEM (child);
stack = PIKA_ITEM_STACK (children);
path = path->next;
i = GPOINTER_TO_UINT (path->data);
if (index)
*index = i;
}
return parent;
}
static void
pika_item_stack_viewable_invalidate_previews (PikaViewable *viewable)
{
PikaContainer *children = pika_viewable_get_children (viewable);
if (children)
pika_item_stack_invalidate_previews (PIKA_ITEM_STACK (children));
pika_viewable_invalidate_preview (viewable);
}
void
pika_item_stack_invalidate_previews (PikaItemStack *stack)
{
g_return_if_fail (PIKA_IS_ITEM_STACK (stack));
pika_container_foreach (PIKA_CONTAINER (stack),
(GFunc) pika_item_stack_viewable_invalidate_previews,
NULL);
}
static void
pika_item_stack_viewable_profile_changed (PikaViewable *viewable)
{
PikaContainer *children = pika_viewable_get_children (viewable);
if (children)
pika_item_stack_profile_changed (PIKA_ITEM_STACK (children));
if (PIKA_IS_COLOR_MANAGED (viewable))
pika_color_managed_profile_changed (PIKA_COLOR_MANAGED (viewable));
}
void
pika_item_stack_profile_changed (PikaItemStack *stack)
{
g_return_if_fail (PIKA_IS_ITEM_STACK (stack));
pika_container_foreach (PIKA_CONTAINER (stack),
(GFunc) pika_item_stack_viewable_profile_changed,
NULL);
}