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gimp/app/gui/session.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* Session-managment stuff
* Copyright (C) 1998 Sven Neumann <sven@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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <stdio.h>
#include <string.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "gui-types.h"
#include "config/gimpguiconfig.h"
#include "core/gimp.h"
#include "config/gimpconfigwriter.h"
#include "config/gimpscanner.h"
#include "widgets/gimpdialogfactory.h"
#include "color-history.h"
#include "session.h"
#include "gimp-intl.h"
/* local function prototypes */
static GTokenType session_info_deserialize (GScanner *scanner,
Gimp *gimp);
static GTokenType session_info_dock_deserialize (GScanner *scanner,
GimpSessionInfo *info);
/* public functions */
enum
{
SESSION_INFO = 1,
COLOR_HISTORY,
LAST_TIP_SHOWN,
SESSION_INFO_POSITION,
SESSION_INFO_SIZE,
SESSION_INFO_OPEN,
SESSION_INFO_AUX,
SESSION_INFO_DOCK,
SESSION_INFO_DOCK_BOOK
};
void
session_init (Gimp *gimp)
{
gchar *filename;
GScanner *scanner;
GTokenType token;
GError *error = NULL;
g_return_if_fail (GIMP_IS_GIMP (gimp));
filename = gimp_personal_rc_file ("sessionrc");
scanner = gimp_scanner_new_file (filename, &error);
g_free (filename);
if (! scanner)
{
/* always show L&C&P, Tool Options and Brushes on first invocation */
/* TODO */
return;
}
g_scanner_scope_add_symbol (scanner, 0, "session-info",
GINT_TO_POINTER (SESSION_INFO));
g_scanner_scope_add_symbol (scanner, 0, "color-history",
GINT_TO_POINTER (COLOR_HISTORY));
g_scanner_scope_add_symbol (scanner, 0, "last-tip-shown",
GINT_TO_POINTER (LAST_TIP_SHOWN));
g_scanner_scope_add_symbol (scanner, SESSION_INFO, "position",
GINT_TO_POINTER (SESSION_INFO_POSITION));
g_scanner_scope_add_symbol (scanner, SESSION_INFO, "size",
GINT_TO_POINTER (SESSION_INFO_SIZE));
g_scanner_scope_add_symbol (scanner, SESSION_INFO, "open-on-exit",
GINT_TO_POINTER (SESSION_INFO_OPEN));
g_scanner_scope_add_symbol (scanner, SESSION_INFO, "aux-info",
GINT_TO_POINTER (SESSION_INFO_AUX));
g_scanner_scope_add_symbol (scanner, SESSION_INFO, "dock",
GINT_TO_POINTER (SESSION_INFO_DOCK));
g_scanner_scope_add_symbol (scanner, SESSION_INFO_DOCK, "book",
GINT_TO_POINTER (SESSION_INFO_DOCK_BOOK));
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:
if (scanner->value.v_symbol == GINT_TO_POINTER (SESSION_INFO))
{
g_scanner_set_scope (scanner, SESSION_INFO);
token = session_info_deserialize (scanner, gimp);
if (token == G_TOKEN_RIGHT_PAREN)
g_scanner_set_scope (scanner, 0);
else
break;
}
else if (scanner->value.v_symbol == GINT_TO_POINTER (COLOR_HISTORY))
{
while (g_scanner_peek_next_token (scanner) == G_TOKEN_LEFT_PAREN)
{
GimpRGB color;
if (! gimp_scanner_parse_color (scanner, &color))
goto error;
color_history_add_from_rc (&color);
}
}
else if (scanner->value.v_symbol == GINT_TO_POINTER (LAST_TIP_SHOWN))
{
GimpGuiConfig *config = GIMP_GUI_CONFIG (gimp->config);
token = G_TOKEN_INT;
if (! gimp_scanner_parse_int (scanner, &config->last_tip))
break;
}
token = G_TOKEN_RIGHT_PAREN;
break;
case G_TOKEN_RIGHT_PAREN:
token = G_TOKEN_LEFT_PAREN;
break;
default: /* do nothing */
break;
}
}
if (token != G_TOKEN_LEFT_PAREN)
{
g_scanner_get_next_token (scanner);
g_scanner_unexp_token (scanner, token, NULL, NULL, NULL,
_("fatal parse error"), TRUE);
}
error:
if (error)
{
g_message (error->message);
g_clear_error (&error);
}
gimp_scanner_destroy (scanner);
}
void
session_restore (Gimp *gimp)
{
g_return_if_fail (GIMP_IS_GIMP (gimp));
gimp_dialog_factories_session_restore ();
}
void
session_save (Gimp *gimp)
{
GimpConfigWriter *writer;
gchar *filename;
g_return_if_fail (GIMP_IS_GIMP (gimp));
filename = gimp_personal_rc_file ("sessionrc");
writer =
gimp_config_writer_new_file (filename,
TRUE,
"GIMP sessionrc\n\n"
"This file takes session-specific info "
"(that is info, you want to keep between "
"two gimp-sessions). You are not supposed "
"to edit it manually, but of course you "
"can do.\n"
"This file will be entirely rewritten "
"every time you quit the gimp. If this "
"file isn't found, defaults are used.",
NULL);
g_free (filename);
if (!writer)
return;
gimp_dialog_factories_session_save (writer);
gimp_config_writer_linefeed (writer);
/* save last tip shown */
gimp_config_writer_open (writer, "last-tip-shown");
gimp_config_writer_printf (writer, "%d",
GIMP_GUI_CONFIG (gimp->config)->last_tip + 1);
gimp_config_writer_close (writer);
gimp_config_writer_linefeed (writer);
color_history_write (writer);
gimp_config_writer_finish (writer, "end of sessionrc", NULL);
}
void
session_clear (Gimp *gimp)
{
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_print ("TODO: implement session_clear()\n");
}
/* private functions */
static GTokenType
session_info_deserialize (GScanner *scanner,
Gimp *gimp)
{
GimpDialogFactory *factory;
GimpSessionInfo *info = NULL;
GTokenType token;
gchar *factory_name;
gchar *entry_name;
gchar *string;
token = G_TOKEN_STRING;
if (! gimp_scanner_parse_string (scanner, &factory_name))
goto error;
factory = gimp_dialog_factory_from_name (factory_name);
g_free (factory_name);
if (! factory)
goto error;
if (! gimp_scanner_parse_string (scanner, &entry_name))
goto error;
info = g_new0 (GimpSessionInfo, 1);
if (strcmp (entry_name, "dock"))
{
info->toplevel_entry = gimp_dialog_factory_find_entry (factory,
entry_name);
g_free (entry_name);
if (! info->toplevel_entry)
goto error;
}
else
{
g_free (entry_name);
}
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))
{
case SESSION_INFO_POSITION:
token = G_TOKEN_INT;
if (! gimp_scanner_parse_int (scanner, &info->x))
goto error;
if (! gimp_scanner_parse_int (scanner, &info->y))
goto error;
break;
case SESSION_INFO_SIZE:
token = G_TOKEN_INT;
if (! gimp_scanner_parse_int (scanner, &info->width))
goto error;
if (! gimp_scanner_parse_int (scanner, &info->height))
goto error;
break;
case SESSION_INFO_OPEN:
info->open = TRUE;
break;
case SESSION_INFO_AUX:
while ((token =
g_scanner_peek_next_token (scanner)) == G_TOKEN_STRING)
{
if (gimp_scanner_parse_string (scanner, &string))
info->aux_info = g_list_append (info->aux_info, string);
else
break;
}
if (token != G_TOKEN_RIGHT_PAREN)
token = G_TOKEN_STRING;
break;
case SESSION_INFO_DOCK:
if (info->toplevel_entry)
goto error;
g_scanner_set_scope (scanner, SESSION_INFO_DOCK);
token = session_info_dock_deserialize (scanner, info);
if (token == G_TOKEN_LEFT_PAREN)
g_scanner_set_scope (scanner, SESSION_INFO);
else
goto error;
break;
default:
break;
}
token = G_TOKEN_RIGHT_PAREN;
break;
case G_TOKEN_RIGHT_PAREN:
token = G_TOKEN_LEFT_PAREN;
break;
default:
break;
}
}
if (token == G_TOKEN_LEFT_PAREN)
{
token = G_TOKEN_RIGHT_PAREN;
if (g_scanner_peek_next_token (scanner) == token)
{
factory->session_infos = g_list_append (factory->session_infos, info);
}
return token;
}
error:
if (info)
{
GList *list;
for (list = info->sub_dialogs; list; list = g_list_next (list))
{
g_list_foreach (list->data, (GFunc) g_free, NULL);
g_list_free (list->data);
}
g_list_free (info->sub_dialogs);
g_free (info);
}
return token;
}
static GTokenType
session_info_dock_deserialize (GScanner *scanner,
GimpSessionInfo *info)
{
GList *list;
gchar *string;
GTokenType token;
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))
{
case SESSION_INFO_DOCK_BOOK:
list = NULL;
while ((token =
g_scanner_peek_next_token (scanner)) == G_TOKEN_STRING)
{
if (gimp_scanner_parse_string (scanner, &string))
list = g_list_append (list, string);
else
break;
}
if (list)
info->sub_dialogs = g_list_append (info->sub_dialogs, list);
if (token != G_TOKEN_RIGHT_PAREN)
token = G_TOKEN_STRING;
break;
default:
return token;
}
break;
case G_TOKEN_RIGHT_PAREN:
token = G_TOKEN_LEFT_PAREN;
break;
default:
break;
}
}
return token;
}
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