PIKApp/app/widgets/pikasessioninfo-book.c

302 lines
8.5 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 Spencer Kimball and Peter Mattis
*
* pikasessioninfo-book.c
* Copyright (C) 2001-2007 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 <gtk/gtk.h>
#include "libpikaconfig/pikaconfig.h"
#include "widgets-types.h"
#include "core/pikacontext.h"
#include "menus/menus.h"
#include "pikadialogfactory.h"
#include "pikadock.h"
#include "pikadockbook.h"
#include "pikasessioninfo.h"
#include "pikasessioninfo-book.h"
#include "pikasessioninfo-dockable.h"
enum
{
SESSION_INFO_BOOK_POSITION,
SESSION_INFO_BOOK_CURRENT_PAGE,
SESSION_INFO_BOOK_DOCKABLE
};
/* public functions */
PikaSessionInfoBook *
pika_session_info_book_new (void)
{
return g_slice_new0 (PikaSessionInfoBook);
}
void
pika_session_info_book_free (PikaSessionInfoBook *info)
{
g_return_if_fail (info != NULL);
if (info->dockables)
{
g_list_free_full (info->dockables,
(GDestroyNotify) pika_session_info_dockable_free);
info->dockables = NULL;
}
g_slice_free (PikaSessionInfoBook, info);
}
void
pika_session_info_book_serialize (PikaConfigWriter *writer,
PikaSessionInfoBook *info)
{
GList *pages;
g_return_if_fail (writer != NULL);
g_return_if_fail (info != NULL);
pika_config_writer_open (writer, "book");
if (info->position != 0)
{
gint position;
position = pika_session_info_apply_position_accuracy (info->position);
pika_config_writer_open (writer, "position");
pika_config_writer_printf (writer, "%d", position);
pika_config_writer_close (writer);
}
pika_config_writer_open (writer, "current-page");
pika_config_writer_printf (writer, "%d", info->current_page);
pika_config_writer_close (writer);
for (pages = info->dockables; pages; pages = g_list_next (pages))
pika_session_info_dockable_serialize (writer, pages->data);
pika_config_writer_close (writer);
}
GTokenType
pika_session_info_book_deserialize (GScanner *scanner,
gint scope,
PikaSessionInfoBook **book)
{
PikaSessionInfoBook *info;
GTokenType token;
g_return_val_if_fail (scanner != NULL, G_TOKEN_LEFT_PAREN);
g_return_val_if_fail (book != NULL, G_TOKEN_LEFT_PAREN);
g_scanner_scope_add_symbol (scanner, scope, "position",
GINT_TO_POINTER (SESSION_INFO_BOOK_POSITION));
g_scanner_scope_add_symbol (scanner, scope, "current-page",
GINT_TO_POINTER (SESSION_INFO_BOOK_CURRENT_PAGE));
g_scanner_scope_add_symbol (scanner, scope, "dockable",
GINT_TO_POINTER (SESSION_INFO_BOOK_DOCKABLE));
info = pika_session_info_book_new ();
token = G_TOKEN_LEFT_PAREN;
while (g_scanner_peek_next_token (scanner) == token)
{
token = g_scanner_get_next_token (scanner);
switch (token)
{
case G_TOKEN_LEFT_PAREN:
token = G_TOKEN_SYMBOL;
break;
case G_TOKEN_SYMBOL:
switch (GPOINTER_TO_INT (scanner->value.v_symbol))
{
PikaSessionInfoDockable *dockable;
case SESSION_INFO_BOOK_POSITION:
token = G_TOKEN_INT;
if (! pika_scanner_parse_int (scanner, &info->position))
goto error;
break;
case SESSION_INFO_BOOK_CURRENT_PAGE:
token = G_TOKEN_INT;
if (! pika_scanner_parse_int (scanner, &info->current_page))
goto error;
break;
case SESSION_INFO_BOOK_DOCKABLE:
g_scanner_set_scope (scanner, scope + 1);
token = pika_session_info_dockable_deserialize (scanner,
scope + 1,
&dockable);
if (token == G_TOKEN_LEFT_PAREN)
{
info->dockables = g_list_append (info->dockables, dockable);
g_scanner_set_scope (scanner, scope);
}
else
goto error;
break;
default:
goto error;
}
token = G_TOKEN_RIGHT_PAREN;
break;
case G_TOKEN_RIGHT_PAREN:
token = G_TOKEN_LEFT_PAREN;
break;
default:
break;
}
}
*book = info;
g_scanner_scope_remove_symbol (scanner, scope, "position");
g_scanner_scope_remove_symbol (scanner, scope, "current-page");
g_scanner_scope_remove_symbol (scanner, scope, "dockable");
return token;
error:
*book = NULL;
pika_session_info_book_free (info);
return token;
}
PikaSessionInfoBook *
pika_session_info_book_from_widget (PikaDockbook *dockbook)
{
PikaSessionInfoBook *info;
GtkWidget *parent;
GList *children;
GList *list;
g_return_val_if_fail (PIKA_IS_DOCKBOOK (dockbook), NULL);
info = pika_session_info_book_new ();
parent = gtk_widget_get_parent (GTK_WIDGET (dockbook));
if (GTK_IS_PANED (parent))
{
GtkPaned *paned = GTK_PANED (parent);
if (GTK_WIDGET (dockbook) == gtk_paned_get_child2 (paned))
info->position = gtk_paned_get_position (paned);
}
info->current_page =
gtk_notebook_get_current_page (GTK_NOTEBOOK (dockbook));
children = gtk_container_get_children (GTK_CONTAINER (dockbook));
for (list = children; list; list = g_list_next (list))
{
PikaSessionInfoDockable *dockable;
dockable = pika_session_info_dockable_from_widget (list->data);
info->dockables = g_list_prepend (info->dockables, dockable);
}
info->dockables = g_list_reverse (info->dockables);
g_list_free (children);
return info;
}
PikaDockbook *
pika_session_info_book_restore (PikaSessionInfoBook *info,
PikaDock *dock)
{
PikaDialogFactory *dialog_factory;
PikaMenuFactory *menu_factory;
GtkWidget *dockbook;
GList *pages;
gint n_dockables = 0;
g_return_val_if_fail (info != NULL, NULL);
g_return_val_if_fail (PIKA_IS_DOCK (dock), NULL);
dialog_factory = pika_dock_get_dialog_factory (dock);
menu_factory = menus_get_global_menu_factory (pika_dialog_factory_get_context (dialog_factory)->pika);
dockbook = pika_dockbook_new (menu_factory);
pika_dock_add_book (dock, PIKA_DOCKBOOK (dockbook), -1);
for (pages = info->dockables; pages; pages = g_list_next (pages))
{
PikaSessionInfoDockable *dockable_info = pages->data;
PikaDockable *dockable;
dockable = pika_session_info_dockable_restore (dockable_info, dock);
if (dockable)
{
gtk_notebook_append_page (GTK_NOTEBOOK (dockbook),
GTK_WIDGET (dockable), NULL);
n_dockables++;
}
}
if (info->current_page <
gtk_notebook_get_n_pages (GTK_NOTEBOOK (dockbook)))
{
gtk_notebook_set_current_page (GTK_NOTEBOOK (dockbook),
info->current_page);
}
else if (n_dockables > 1)
{
gtk_notebook_set_current_page (GTK_NOTEBOOK (dockbook), 0);
}
/* Return the dockbook even if no dockable could be restored
* (n_dockables == 0) because otherwise we would have to remove it
* from the dock right here, which could implicitly destroy the
* dock and make catching restore errors much harder on higher
* levels. Instead, we check for restored empty dockbooks in our
* caller.
*/
return PIKA_DOCKBOOK (dockbook);
}