rockbox/apps/settings.c

/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2002 by wavey@wavey.org
 *
 * All files in this archive are subject to the GNU General Public License.
 * See the file COPYING in the source tree root for full license agreement.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/

#include <stdio.h>
#include "config.h"
#include "settings.h"
#include "disk.h"
#include "panic.h"
#include "debug.h"
#include "button.h"
#include "lcd.h"
#include "mpeg.h"

struct user_settings global_settings;

/*
 * persist all runtime user settings to disk
 */
int persist_all_settings( void )
{
    return 1;
}

/*
 * persist all the playlist information to disk
 */
int persist_all_playlist_info( void )
{
    return 1;
}

/*
 * load settings from disk
 */
void reload_all_settings( struct user_settings *settings )
{
    DEBUGF( "reload_all_settings()\n" );

    /* this is a TEMP stub version */
    
    /* populate settings with default values */
    
    reset_settings( settings );
}

/*
 * reset all settings to their default value 
 */
void reset_settings( struct user_settings *settings ) {
        
    DEBUGF( "reset_settings()\n" );

    settings->volume      = mpeg_sound_default(SOUND_VOLUME);
    settings->balance     = DEFAULT_BALANCE_SETTING;
    settings->bass        = mpeg_sound_default(SOUND_BASS);
    settings->treble      = mpeg_sound_default(SOUND_TREBLE);
    settings->loudness    = DEFAULT_LOUDNESS_SETTING;
    settings->bass_boost  = DEFAULT_BASS_BOOST_SETTING;
    settings->contrast    = DEFAULT_CONTRAST_SETTING;
    settings->poweroff    = DEFAULT_POWEROFF_SETTING;
    settings->backlight   = DEFAULT_BACKLIGHT_SETTING;
    settings->wps_display = DEFAULT_WPS_DISPLAY;
    settings->mp3filter   = true;
    settings->playlist_shuffle = false;
}


/*
 * dump the list of current settings
 */
void display_current_settings( struct user_settings *settings )
{
#ifdef DEBUG
    DEBUGF( "\ndisplay_current_settings()\n" );

    DEBUGF( "\nvolume:\t\t%d\nbalance:\t%d\nbass:\t\t%d\ntreble:\t\t%d\nloudness:\t%d\nbass boost:\t%d\n",
            settings->volume,
            settings->balance,
            settings->bass,
            settings->treble,
            settings->loudness,
            settings->bass_boost );

    DEBUGF( "contrast:\t%d\npoweroff:\t%d\nbacklight:\t%d\n",
            settings->contrast,
            settings->poweroff,
            settings->backlight );
#else
    /* Get rid of warning */
    settings = settings;
#endif
}

void set_bool(char* string, bool* variable )
{
    bool done = false;

    lcd_clear_display();
    lcd_puts_scroll(0,0,string);

    while ( !done ) {
        lcd_puts(0, 1, *variable ? "on " : "off");
        lcd_update();

        switch ( button_get(true) ) {
#ifdef HAVE_RECORDER_KEYPAD
            case BUTTON_LEFT:
#else
            case BUTTON_STOP:
            case BUTTON_MENU:
#endif
                done = true;
                break;

            default:
                *variable = !*variable;
                break;
        }
    }
    lcd_stop_scroll();
}

void set_int(char* string, 
             char* unit,
             int* variable,
             void (*function)(int),
             int step,
             int min,
             int max )
{
    bool done = false;

    lcd_clear_display();
    lcd_puts_scroll(0,0,string);

    while (!done) {
        char str[32];
        snprintf(str,sizeof str,"%d %s  ", *variable, unit);
        lcd_puts(0,1,str);
        lcd_update();

        switch( button_get(true) ) {
#ifdef HAVE_RECORDER_KEYPAD
            case BUTTON_UP:
#else
            case BUTTON_RIGHT:
#endif
                *variable += step;
                if(*variable > max )
                    *variable = max;
                break;

#ifdef HAVE_RECORDER_KEYPAD
            case BUTTON_DOWN:
#else
            case BUTTON_LEFT:
#endif
                *variable -= step;
                if(*variable < min )
                    *variable = min;
                break;

#ifdef HAVE_RECORDER_KEYPAD
            case BUTTON_LEFT:
#else
            case BUTTON_STOP:
            case BUTTON_MENU:
#endif
                done = true;
                break;
        }
        if ( function )
            function(*variable);
    }
    lcd_stop_scroll();
}

void set_option(char* string, int* variable, char* options[], int numoptions )
{
    bool done = false;

    lcd_clear_display();
    lcd_puts_scroll(0,0,string);

    while ( !done ) {
        lcd_puts(0, 1, options[*variable]);
        lcd_update();

        switch ( button_get(true) ) {
#ifdef HAVE_RECORDER_KEYPAD
            case BUTTON_UP:
#else
            case BUTTON_RIGHT:
#endif
                if ( *variable < (numoptions-1) )
                    (*variable)++;
                break;

#ifdef HAVE_RECORDER_KEYPAD
            case BUTTON_DOWN:
#else
            case BUTTON_LEFT:
#endif
                if ( *variable > 0 )
                    (*variable)--;
                break;

#ifdef HAVE_RECORDER_KEYPAD
            case BUTTON_LEFT:
#else
            case BUTTON_STOP:
            case BUTTON_MENU:
#endif
                done = true;
                break;
        }
    }
    lcd_stop_scroll();
}