gimp/app/widgets/gimpsessioninfo-book.c

282 lines
7.7 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpsessioninfo-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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "libgimpconfig/gimpconfig.h"
#include "widgets-types.h"
#include "menus/menus.h"
#include "gimpdialogfactory.h"
#include "gimpdock.h"
#include "gimpdockbook.h"
#include "gimpsessioninfo-book.h"
#include "gimpsessioninfo-dockable.h"
#include "gimpwidgets-utils.h"
enum
{
SESSION_INFO_BOOK_POSITION,
SESSION_INFO_BOOK_CURRENT_PAGE,
SESSION_INFO_BOOK_DOCKABLE
};
/* public functions */
GimpSessionInfoBook *
gimp_session_info_book_new (void)
{
return g_slice_new0 (GimpSessionInfoBook);
}
void
gimp_session_info_book_free (GimpSessionInfoBook *info)
{
g_return_if_fail (info != NULL);
if (info->dockables)
{
g_list_free_full (info->dockables,
(GDestroyNotify) gimp_session_info_dockable_free);
info->dockables = NULL;
}
g_slice_free (GimpSessionInfoBook, info);
}
void
gimp_session_info_book_serialize (GimpConfigWriter *writer,
GimpSessionInfoBook *info)
{
GList *pages;
g_return_if_fail (writer != NULL);
g_return_if_fail (info != NULL);
gimp_config_writer_open (writer, "book");
if (info->position != 0)
gimp_session_write_position (writer, info->position);
gimp_config_writer_open (writer, "current-page");
gimp_config_writer_printf (writer, "%d", info->current_page);
gimp_config_writer_close (writer);
for (pages = info->dockables; pages; pages = g_list_next (pages))
gimp_session_info_dockable_serialize (writer, pages->data);
gimp_config_writer_close (writer);
}
GTokenType
gimp_session_info_book_deserialize (GScanner *scanner,
gint scope,
GimpSessionInfoBook **book)
{
GimpSessionInfoBook *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 = gimp_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))
{
GimpSessionInfoDockable *dockable;
case SESSION_INFO_BOOK_POSITION:
token = G_TOKEN_INT;
if (! gimp_scanner_parse_int (scanner, &info->position))
goto error;
break;
case SESSION_INFO_BOOK_CURRENT_PAGE:
token = G_TOKEN_INT;
if (! gimp_scanner_parse_int (scanner, &info->current_page))
goto error;
break;
case SESSION_INFO_BOOK_DOCKABLE:
g_scanner_set_scope (scanner, scope + 1);
token = gimp_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;
gimp_session_info_book_free (info);
return token;
}
GimpSessionInfoBook *
gimp_session_info_book_from_widget (GimpDockbook *dockbook)
{
GimpSessionInfoBook *info;
GtkWidget *parent;
GList *children;
GList *list;
g_return_val_if_fail (GIMP_IS_DOCKBOOK (dockbook), NULL);
info = gimp_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))
{
GimpSessionInfoDockable *dockable;
dockable = gimp_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;
}
GimpDockbook *
gimp_session_info_book_restore (GimpSessionInfoBook *info,
GimpDock *dock)
{
GtkWidget *dockbook;
GList *pages;
gint n_dockables = 0;
g_return_val_if_fail (info != NULL, NULL);
g_return_val_if_fail (GIMP_IS_DOCK (dock), NULL);
dockbook = gimp_dockbook_new (global_menu_factory);
gimp_dock_add_book (dock, GIMP_DOCKBOOK (dockbook), -1);
for (pages = info->dockables; pages; pages = g_list_next (pages))
{
GimpSessionInfoDockable *dockable_info = pages->data;
GimpDockable *dockable;
dockable = gimp_session_info_dockable_restore (dockable_info, dock);
if (dockable)
{
gimp_dockbook_add (GIMP_DOCKBOOK (dockbook), dockable, -1);
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 GIMP_DOCKBOOK (dockbook);
}