syndilights/blib-1.1.7/blib/blib.c

135 lines
3.9 KiB
C

/* blib - Library of useful things to hack the Blinkenlights
*
* Copyright (C) 2002 The Blinkenlights Crew
* 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 <stdlib.h>
#include <time.h>
#include <glib-object.h>
#include "btypes.h"
#include "butils.h"
static void b_register_transform_funcs (void);
static gboolean initialized = FALSE;
/**
* b_init:
*
* This function initializes the BLib library. It calls g_type_init()
* for you, initializes the random number generator and registers some
* transform functions needed for the deserialization routines.
*
* It is safe to call this function multiple times but you should at
* least call it once before you use any other BLib functions.
**/
void
b_init (void)
{
if (initialized)
return;
srand (time (NULL));
g_type_init ();
b_register_transform_funcs ();
initialized = TRUE;
}
static void
b_value_transform_string_int (const GValue *src_value,
GValue *dest_value)
{
const gchar *str = g_value_get_string (src_value);
gint i;
if (b_parse_int (str, &i))
g_value_set_int (dest_value, i);
else
g_warning ("can not convert '%s' to an integer value", str);
}
static void
b_value_transform_string_double (const GValue *src_value,
GValue *dest_value)
{
const gchar *str = g_value_get_string (src_value);
gdouble d;
if (b_parse_double (str, &d))
g_value_set_double (dest_value, d);
else
g_warning ("can not convert '%s' to a double value", str);
}
static void
b_value_transform_string_boolean (const GValue *src_value,
GValue *dest_value)
{
const gchar *str = g_value_get_string (src_value);
gboolean b;
if (b_parse_boolean (str, &b))
g_value_set_boolean (dest_value, b);
else
g_warning ("can not convert '%s' to a boolean value", str);
}
static void
b_value_transform_string_enum (const GValue *src_value,
GValue *dest_value)
{
GEnumClass *enum_class;
GEnumValue *enum_value;
g_return_if_fail (G_VALUE_HOLDS_ENUM (dest_value));
enum_class = g_type_class_peek (G_VALUE_TYPE (dest_value));
enum_value = g_enum_get_value_by_name (G_ENUM_CLASS (enum_class),
g_value_get_string (src_value));
if (!enum_value)
enum_value = g_enum_get_value_by_nick (G_ENUM_CLASS (enum_class),
g_value_get_string (src_value));
if (enum_value)
g_value_set_enum (dest_value, enum_value->value);
else
g_warning ("can not convert '%s' to an enum value",
g_value_get_string (src_value));
}
static void
b_register_transform_funcs (void)
{
g_value_register_transform_func (G_TYPE_STRING, G_TYPE_INT,
b_value_transform_string_int);
g_value_register_transform_func (G_TYPE_STRING, G_TYPE_DOUBLE,
b_value_transform_string_double);
g_value_register_transform_func (G_TYPE_STRING, G_TYPE_BOOLEAN,
b_value_transform_string_boolean);
g_value_register_transform_func (G_TYPE_STRING, G_TYPE_ENUM,
b_value_transform_string_enum);
}