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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 Gilles Roux
* 2003 Garrett Derner
* 2010 Yoshihisa Uchida
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "plugin.h"
#include "tv_preferences.h"
static struct tv_preferences prefs;
/* read-only preferences pointer, for access by other files */
const struct tv_preferences * const preferences = &prefs;
static int listner_count = 0;
#define TV_MAX_LISTNERS 5
static int (*listners[TV_MAX_LISTNERS])(const struct tv_preferences *oldp);
static bool tv_notify_change_preferences(const struct tv_preferences *oldp)
{
int i;
int res = TV_CALLBACK_OK;
/*
* the following items do not check.
* - alignment
* - horizontal_scroll_mode
* - vertical_scroll_mode
* - overlap_page_mode
* - font
* - autoscroll_speed
* - narrow_mode
*/
if ((oldp == NULL) ||
(oldp->word_mode != preferences->word_mode) ||
(oldp->line_mode != preferences->line_mode) ||
(oldp->windows != preferences->windows) ||
(oldp->horizontal_scrollbar != preferences->horizontal_scrollbar) ||
(oldp->vertical_scrollbar != preferences->vertical_scrollbar) ||
(oldp->encoding != preferences->encoding) ||
(oldp->indent_spaces != preferences->indent_spaces) ||
#ifdef HAVE_LCD_BITMAP
(oldp->header_mode != preferences->header_mode) ||
(oldp->footer_mode != preferences->footer_mode) ||
(oldp->statusbar != preferences->statusbar) ||
(rb->strcmp(oldp->font_name, preferences->font_name)) ||
#endif
(rb->strcmp(oldp->file_name, preferences->file_name)))
{
/* callback functions are called as FILO */
for (i = listner_count - 1; i >= 0; i--)
if ((res = listners[i](oldp)) != TV_CALLBACK_OK)
break;
}
return (res != TV_CALLBACK_ERROR);
}
bool tv_set_preferences(const struct tv_preferences *new_prefs)
{
static struct tv_preferences old_prefs;
struct tv_preferences *oldp = NULL;
static bool is_initialized = false;
if (is_initialized)
tv_copy_preferences((oldp = &old_prefs));
is_initialized = true;
rb->memcpy(&prefs, new_prefs, sizeof(struct tv_preferences));
return tv_notify_change_preferences(oldp);
}
void tv_copy_preferences(struct tv_preferences *copy_prefs)
{
rb->memcpy(copy_prefs, preferences, sizeof(struct tv_preferences));
}
void tv_set_default_preferences(struct tv_preferences *p)
{
p->word_mode = WM_WRAP;
p->line_mode = LM_NORMAL;
p->windows = 1;
p->alignment = AL_LEFT;
p->horizontal_scroll_mode = HS_SCREEN;
p->vertical_scroll_mode = VS_PAGE;
p->overlap_page_mode = false;
p->horizontal_scrollbar = false;
p->vertical_scrollbar = false;
#ifdef HAVE_LCD_BITMAP
p->header_mode = true;
p->footer_mode = true;
p->statusbar = true;
rb->strlcpy(p->font_name, rb->global_settings->font_file, MAX_PATH);
p->font = rb->font_get(FONT_UI);
#else
p->header_mode = false;
p->footer_mode = false;
p->statusbar = false;
#endif
p->autoscroll_speed = 1;
p->narrow_mode = NM_PAGE;
p->indent_spaces = 2;
/* Set codepage to system default */
p->encoding = rb->global_settings->default_codepage;
p->file_name[0] = '\0';
}
void tv_add_preferences_change_listner(int (*listner)(const struct tv_preferences *oldp))
{
if (listner_count < TV_MAX_LISTNERS)
listners[listner_count++] = listner;
}
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