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gimp/app/config/gimprc.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* GimpRc, the object for GIMPs user configuration file gimprc.
* Copyright (C) 2001-2002 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 <string.h>
#include <glib-object.h>
#include "libgimpbase/gimpbase.h"
#include "config-types.h"
#include "gimpconfig.h"
#include "gimpconfig-deserialize.h"
#include "gimpconfig-error.h"
#include "gimpconfig-params.h"
#include "gimpconfig-path.h"
#include "gimpconfig-serialize.h"
#include "gimpconfig-utils.h"
#include "gimprc.h"
#include "gimp-intl.h"
enum
{
PROP_0,
PROP_VERBOSE,
PROP_SYSTEM_GIMPRC,
PROP_USER_GIMPRC
};
static void gimp_rc_class_init (GimpRcClass *klass);
static void gimp_rc_config_iface_init (gpointer iface,
gpointer iface_data);
static void gimp_rc_init (GimpRc *rc);
static void gimp_rc_dispose (GObject *object);
static void gimp_rc_finalize (GObject *object);
static void gimp_rc_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_rc_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static gboolean gimp_rc_serialize (GimpConfig *object,
GimpConfigWriter *writer,
gpointer data);
static gboolean gimp_rc_deserialize (GimpConfig *object,
GScanner *scanner,
gint nest_level,
gpointer data);
static GimpConfig * gimp_rc_duplicate (GimpConfig *object);
static void gimp_rc_load (GimpRc *rc);
static gboolean gimp_rc_idle_save (GimpRc *rc);
static void gimp_rc_notify (GimpRc *rc,
GParamSpec *param,
gpointer data);
static GObjectClass *parent_class = NULL;
GType
gimp_rc_get_type (void)
{
static GType rc_type = 0;
if (! rc_type)
{
static const GTypeInfo rc_info =
{
sizeof (GimpRcClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gimp_rc_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpRc),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_rc_init
};
static const GInterfaceInfo rc_iface_info =
{
gimp_rc_config_iface_init,
NULL, /* iface_finalize */
NULL /* iface_data */
};
rc_type = g_type_register_static (GIMP_TYPE_PLUGIN_CONFIG,
"GimpRc", &rc_info, 0);
g_type_add_interface_static (rc_type, GIMP_TYPE_CONFIG, &rc_iface_info);
}
return rc_type;
}
static void
gimp_rc_class_init (GimpRcClass *klass)
{
GObjectClass *object_class;
parent_class = g_type_class_peek_parent (klass);
object_class = G_OBJECT_CLASS (klass);
object_class->dispose = gimp_rc_dispose;
object_class->finalize = gimp_rc_finalize;
object_class->set_property = gimp_rc_set_property;
object_class->get_property = gimp_rc_get_property;
g_object_class_install_property (object_class, PROP_VERBOSE,
g_param_spec_boolean ("verbose",
NULL, NULL,
FALSE,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
g_object_class_install_property (object_class, PROP_SYSTEM_GIMPRC,
g_param_spec_string ("system-gimprc",
NULL, NULL,
NULL,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
g_object_class_install_property (object_class, PROP_USER_GIMPRC,
g_param_spec_string ("user-gimprc",
NULL, NULL,
NULL,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
}
static void
gimp_rc_init (GimpRc *rc)
{
rc->autosave = FALSE;
rc->save_idle_id = 0;
}
static void
gimp_rc_dispose (GObject *object)
{
GimpRc *rc = GIMP_RC (object);
if (rc->save_idle_id)
gimp_rc_idle_save (rc);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gimp_rc_finalize (GObject *object)
{
GimpRc *rc = GIMP_RC (object);
if (rc->system_gimprc)
{
g_free (rc->system_gimprc);
rc->system_gimprc = NULL;
}
if (rc->user_gimprc)
{
g_free (rc->user_gimprc);
rc->user_gimprc = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_rc_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpRc *rc = GIMP_RC (object);
const gchar *filename = NULL;
switch (property_id)
{
case PROP_SYSTEM_GIMPRC:
case PROP_USER_GIMPRC:
filename = g_value_get_string (value);
break;
default:
break;
}
switch (property_id)
{
case PROP_VERBOSE:
rc->verbose = g_value_get_boolean (value);
break;
case PROP_SYSTEM_GIMPRC:
g_free (rc->system_gimprc);
if (filename)
rc->system_gimprc = g_strdup (filename);
else
rc->system_gimprc = g_build_filename (gimp_sysconf_directory (),
"gimprc", NULL);
break;
case PROP_USER_GIMPRC:
g_free (rc->user_gimprc);
if (filename)
rc->user_gimprc = g_strdup (filename);
else
rc->user_gimprc = gimp_personal_rc_file ("gimprc");
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_rc_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpRc *rc = GIMP_RC (object);
switch (property_id)
{
case PROP_VERBOSE:
g_value_set_boolean (value, rc->verbose);
break;
case PROP_SYSTEM_GIMPRC:
g_value_set_string (value, rc->system_gimprc);
break;
case PROP_USER_GIMPRC:
g_value_set_string (value, rc->user_gimprc);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_rc_config_iface_init (gpointer iface,
gpointer iface_data)
{
GimpConfigInterface *config_iface = (GimpConfigInterface *) iface;
config_iface->serialize = gimp_rc_serialize;
config_iface->deserialize = gimp_rc_deserialize;
config_iface->duplicate = gimp_rc_duplicate;
}
static gboolean
gimp_rc_serialize (GimpConfig *config,
GimpConfigWriter *writer,
gpointer data)
{
if (data && GIMP_IS_RC (data))
{
if (! gimp_config_serialize_properties_diff (config, GIMP_CONFIG (data),
writer))
return FALSE;
}
else
{
if (! gimp_config_serialize_properties (config, writer))
return FALSE;
}
return gimp_config_serialize_unknown_tokens (config, writer);
}
static gboolean
gimp_rc_deserialize (GimpConfig *config,
GScanner *scanner,
gint nest_level,
gpointer data)
{
return gimp_config_deserialize_properties (config,
scanner, nest_level, TRUE);
}
static void
gimp_rc_duplicate_unknown_token (const gchar *key,
const gchar *value,
gpointer user_data)
{
gimp_config_add_unknown_token (GIMP_CONFIG (user_data), key, value);
}
static GimpConfig *
gimp_rc_duplicate (GimpConfig *config)
{
GimpConfig *dup = g_object_new (GIMP_TYPE_RC, NULL);
gimp_config_sync (config, dup, 0);
gimp_config_foreach_unknown_token (config,
gimp_rc_duplicate_unknown_token, dup);
return dup;
}
static void
gimp_rc_load (GimpRc *rc)
{
GError *error = NULL;
g_return_if_fail (GIMP_IS_RC (rc));
if (rc->verbose)
g_print (_("Parsing '%s'\n"),
gimp_filename_to_utf8 (rc->system_gimprc));
if (! gimp_config_deserialize_file (GIMP_CONFIG (rc),
rc->system_gimprc, NULL, &error))
{
if (error->code != GIMP_CONFIG_ERROR_OPEN_ENOENT)
g_message (error->message);
g_clear_error (&error);
}
if (rc->verbose)
g_print (_("Parsing '%s'\n"),
gimp_filename_to_utf8 (rc->user_gimprc));
if (! gimp_config_deserialize_file (GIMP_CONFIG (rc),
rc->user_gimprc, NULL, &error))
{
if (error->code != GIMP_CONFIG_ERROR_OPEN_ENOENT)
{
g_message (error->message);
gimp_config_file_backup_on_error (rc->user_gimprc, "gimprc", NULL);
}
g_clear_error (&error);
}
}
static gboolean
gimp_rc_idle_save (GimpRc *rc)
{
gimp_rc_save (rc);
rc->save_idle_id = 0;
return FALSE;
}
static void
gimp_rc_notify (GimpRc *rc,
GParamSpec *param,
gpointer data)
{
if (!rc->autosave)
return;
if (!rc->save_idle_id)
rc->save_idle_id = g_idle_add ((GSourceFunc) gimp_rc_idle_save, rc);
}
/**
* gimp_rc_new:
* @system_gimprc: the name of the system-wide gimprc file or %NULL to
* use the standard location
* @user_gimprc: the name of the user gimprc file or %NULL to use the
* standard location
* @verbose: enable console messages about loading and saving
*
* Creates a new GimpRc object and loads the system-wide and the user
* configuration files.
*
* Returns: the new #GimpRc.
*/
GimpRc *
gimp_rc_new (const gchar *system_gimprc,
const gchar *user_gimprc,
gboolean verbose)
{
GimpRc *rc = g_object_new (GIMP_TYPE_RC,
"verbose", verbose,
"system-gimprc", system_gimprc,
"user-gimprc", user_gimprc,
NULL);
gimp_rc_load (rc);
return rc;
}
void
gimp_rc_set_autosave (GimpRc *rc,
gboolean autosave)
{
g_return_if_fail (GIMP_IS_RC (rc));
autosave = autosave ? TRUE : FALSE;
if (rc->autosave == autosave)
return;
if (autosave)
g_signal_connect (rc, "notify",
G_CALLBACK (gimp_rc_notify),
NULL);
else
g_signal_handlers_disconnect_by_func (rc, gimp_rc_notify, NULL);
rc->autosave = autosave;
}
/**
* gimp_rc_query:
* @rc: a #GimpRc object.
* @key: a string used as a key for the lookup.
*
* This function looks up @key in the object properties of @rc. If
* there's a matching property, a string representation of its value
* is returned. If no property is found, the list of unknown tokens
* attached to the @rc object is searched.
*
* Return value: a newly allocated string representing the value or %NULL
* if the key couldn't be found.
**/
gchar *
gimp_rc_query (GimpRc *rc,
const gchar *key)
{
GObjectClass *klass;
GObject *rc_object;
GParamSpec **property_specs;
GParamSpec *prop_spec;
guint i, n_property_specs;
gchar *retval = NULL;
g_return_val_if_fail (GIMP_IS_RC (rc), NULL);
g_return_val_if_fail (key != NULL, NULL);
rc_object = G_OBJECT (rc);
klass = G_OBJECT_GET_CLASS (rc);
property_specs = g_object_class_list_properties (klass, &n_property_specs);
if (!property_specs)
return NULL;
for (i = 0, prop_spec = NULL; i < n_property_specs && !prop_spec; i++)
{
prop_spec = property_specs[i];
if (! (prop_spec->flags & GIMP_PARAM_SERIALIZE) ||
strcmp (prop_spec->name, key))
{
prop_spec = NULL;
}
}
if (prop_spec)
{
GString *str = g_string_new (NULL);
GValue value = { 0, };
g_value_init (&value, prop_spec->value_type);
g_object_get_property (rc_object, prop_spec->name, &value);
if (gimp_config_serialize_value (&value, str, FALSE))
retval = g_string_free (str, FALSE);
else
g_string_free (str, TRUE);
g_value_unset (&value);
}
else
{
retval = g_strdup (gimp_config_lookup_unknown_token (GIMP_CONFIG (rc),
key));
}
g_free (property_specs);
if (!retval)
{
const gchar *path_tokens[] =
{
"gimp_dir",
"gimp_data_dir",
"gimp_plug_in_dir",
"gimp_plugin_dir",
"gimp_sysconf_dir"
};
for (i = 0; !retval && i < G_N_ELEMENTS (path_tokens); i++)
if (strcmp (key, path_tokens[i]) == 0)
retval = g_strdup_printf ("${%s}", path_tokens[i]);
}
if (retval)
{
gchar *tmp = gimp_config_path_expand (retval, FALSE, NULL);
if (tmp)
{
g_free (retval);
retval = tmp;
}
}
return retval;
}
/**
* gimp_rc_set_unkown_token:
* @gimprc: a #GimpRc object.
* @token:
* @value:
*
* Calls gimp_config_add_unknown_token() and triggers an idle-save if
* autosave is enabled on @gimprc.
**/
void
gimp_rc_set_unknown_token (GimpRc *rc,
const gchar *token,
const gchar *value)
{
g_return_if_fail (GIMP_IS_RC (rc));
gimp_config_add_unknown_token (GIMP_CONFIG (rc), token, value);
if (rc->autosave)
gimp_rc_notify (rc, NULL, NULL);
}
/**
* gimp_rc_save:
* @gimprc: a #GimpRc object.
*
* Saves any settings that differ from the system-wide defined
* defaults to the users personal gimprc file.
**/
void
gimp_rc_save (GimpRc *rc)
{
GimpRc *global;
gchar *header;
GError *error = NULL;
const gchar *top =
"GIMP gimprc\n"
"\n"
"This is your personal gimprc file. Any variable defined in this file "
"takes precedence over the value defined in the system-wide gimprc: ";
const gchar *bottom =
"\n"
"Most values can be set within The GIMP by changing some options in "
"the Preferences dialog.";
const gchar *footer =
"end of gimprc";
g_return_if_fail (GIMP_IS_RC (rc));
global = g_object_new (GIMP_TYPE_RC, NULL);
gimp_config_deserialize_file (GIMP_CONFIG (global),
rc->system_gimprc, NULL, NULL);
header = g_strconcat (top, rc->system_gimprc, bottom, NULL);
if (rc->verbose)
g_print (_("Saving '%s'\n"),
gimp_filename_to_utf8 (rc->user_gimprc));
if (! gimp_config_serialize_to_file (GIMP_CONFIG (rc),
rc->user_gimprc,
header, footer, global,
&error))
{
g_message (error->message);
g_error_free (error);
}
g_free (header);
g_object_unref (global);
}
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