rockbox/apps/menus/display_menu.c

/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2007 Jonathan Gordon
 *
 * 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 <stdbool.h>
#include <stddef.h>
#include <limits.h>
#include "config.h"
#include "appevents.h"
#include "lang.h"
#include "action.h"
#include "settings.h"
#include "menu.h"
#include "tree.h"
#include "list.h"
#ifdef HAVE_LCD_BITMAP
#include "peakmeter.h"
#endif
#include "talk.h"
#include "lcd.h"
#include "lcd-remote.h"
#ifdef HAVE_TOUCHSCREEN
#include "screens.h"
#endif
#include "viewport.h"
#include "statusbar.h" /* statusbar_vals enum*/

#ifdef HAVE_BACKLIGHT
static int filterfirstkeypress_callback(int action,const struct menu_item_ex *this_item)
{
    (void)this_item;
    switch (action)
    {
        case ACTION_EXIT_MENUITEM:
            set_backlight_filter_keypress(global_settings.bl_filter_first_keypress);
#ifdef HAVE_REMOTE_LCD
            set_remote_backlight_filter_keypress(
                                global_settings.remote_bl_filter_first_keypress);
#endif
        
            break;
    }
    return action;
}
#endif
#ifdef HAVE_LCD_FLIP
static int flipdisplay_callback(int action,const struct menu_item_ex *this_item)
{
    (void)this_item;
    switch (action)
    {
        case ACTION_EXIT_MENUITEM:
            button_set_flip(global_settings.flip_display);
            lcd_set_flip(global_settings.flip_display);
            lcd_update();
#ifdef HAVE_REMOTE_LCD
            lcd_remote_set_flip(global_settings.remote_flip_display);
            lcd_remote_update();
#endif
            break;
    }
    return action;
}
#endif

/***********************************/
/*    LCD MENU                     */
#ifdef HAVE_BACKLIGHT
MENUITEM_SETTING(backlight_timeout, &global_settings.backlight_timeout, NULL);
#if CONFIG_CHARGING
MENUITEM_SETTING(backlight_timeout_plugged, 
                &global_settings.backlight_timeout_plugged, NULL);
#endif
#ifdef HAS_BUTTON_HOLD
MENUITEM_SETTING(backlight_on_button_hold, 
                &global_settings.backlight_on_button_hold, NULL);
#endif
MENUITEM_SETTING(caption_backlight, &global_settings.caption_backlight, NULL);
#if    defined(HAVE_BACKLIGHT_FADING_INT_SETTING) \
    || defined(HAVE_BACKLIGHT_FADING_BOOL_SETTING)
MENUITEM_SETTING(backlight_fade_in, &global_settings.backlight_fade_in, NULL);
MENUITEM_SETTING(backlight_fade_out, &global_settings.backlight_fade_out, NULL);
#endif
MENUITEM_SETTING(bl_filter_first_keypress, 
                    &global_settings.bl_filter_first_keypress, 
                    filterfirstkeypress_callback);
#ifdef HAVE_LCD_SLEEP_SETTING
MENUITEM_SETTING(lcd_sleep_after_backlight_off,
                &global_settings.lcd_sleep_after_backlight_off, NULL);
#endif
#ifdef HAVE_BACKLIGHT_BRIGHTNESS
MENUITEM_SETTING(brightness_item, &global_settings.brightness, NULL);
#endif
#endif /* HAVE_BACKLIGHT */
#ifdef HAVE_LCD_CONTRAST
MENUITEM_SETTING(contrast, &global_settings.contrast, NULL);
#endif
#ifdef HAVE_LCD_BITMAP
#ifdef HAVE_LCD_INVERT
MENUITEM_SETTING(invert, &global_settings.invert, NULL);
#endif
#ifdef HAVE_LCD_FLIP
MENUITEM_SETTING(flip_display, &global_settings.flip_display, flipdisplay_callback);
#endif
#endif /* HAVE_LCD_BITMAP */

/* now the actual menu */
MAKE_MENU(lcd_settings,ID2P(LANG_LCD_MENU),
            NULL, Icon_Display_menu
#ifdef HAVE_BACKLIGHT
            ,&backlight_timeout
# if CONFIG_CHARGING
            ,&backlight_timeout_plugged
# endif
# ifdef HAS_BUTTON_HOLD
            ,&backlight_on_button_hold
# endif
            ,&caption_backlight
#if    defined(HAVE_BACKLIGHT_FADING_INT_SETTING) \
    || defined(HAVE_BACKLIGHT_FADING_BOOL_SETTING)
            ,&backlight_fade_in, &backlight_fade_out
#endif
            ,&bl_filter_first_keypress
# ifdef HAVE_LCD_SLEEP_SETTING
            ,&lcd_sleep_after_backlight_off
# endif
# ifdef HAVE_BACKLIGHT_BRIGHTNESS
            ,&brightness_item
# endif
#endif /* HAVE_BACKLIGHT */
#ifdef HAVE_LCD_CONTRAST
            ,&contrast
#endif
#ifdef HAVE_LCD_BITMAP
# ifdef HAVE_LCD_INVERT
            ,&invert
# endif
# ifdef HAVE_LCD_FLIP
            ,&flip_display
# endif
#endif /* HAVE_LCD_BITMAP */
         );
/*    LCD MENU                    */
/***********************************/


/********************************/
/* Remote LCD settings menu     */
#ifdef HAVE_REMOTE_LCD
MENUITEM_SETTING(remote_backlight_timeout, 
                    &global_settings.remote_backlight_timeout, NULL);

#if CONFIG_CHARGING
MENUITEM_SETTING(remote_backlight_timeout_plugged, 
                    &global_settings.remote_backlight_timeout_plugged, NULL);
#endif

#ifdef HAS_REMOTE_BUTTON_HOLD
MENUITEM_SETTING(remote_backlight_on_button_hold, 
                    &global_settings.remote_backlight_on_button_hold, NULL);
#endif

MENUITEM_SETTING(remote_caption_backlight, 
                    &global_settings.remote_caption_backlight, NULL);
MENUITEM_SETTING(remote_bl_filter_first_keypress, 
                    &global_settings.remote_bl_filter_first_keypress, 
                    filterfirstkeypress_callback);
MENUITEM_SETTING(remote_contrast, 
                    &global_settings.remote_contrast, NULL);
MENUITEM_SETTING(remote_invert, 
                    &global_settings.remote_invert, NULL);
   
#ifdef HAVE_LCD_FLIP                    
MENUITEM_SETTING(remote_flip_display, 
                    &global_settings.remote_flip_display, flipdisplay_callback);
#endif

#ifdef HAVE_REMOTE_LCD_TICKING
static int ticking_callback(int action,const struct menu_item_ex *this_item)
{
    (void)this_item;
    switch (action)
    {
        case ACTION_EXIT_MENUITEM:
            lcd_remote_emireduce(global_settings.remote_reduce_ticking);
            break;
    }
    return action;
}
MENUITEM_SETTING(remote_reduce_ticking, 
                    &global_settings.remote_reduce_ticking, ticking_callback);
#endif

MAKE_MENU(lcd_remote_settings, ID2P(LANG_LCD_REMOTE_MENU),
            NULL, Icon_Remote_Display_menu,
            &remote_backlight_timeout,
#if CONFIG_CHARGING
            &remote_backlight_timeout_plugged,
#endif
#ifdef HAS_REMOTE_BUTTON_HOLD
            &remote_backlight_on_button_hold,
#endif
            &remote_caption_backlight, &remote_bl_filter_first_keypress,
            &remote_contrast, &remote_invert
            
#ifdef HAVE_LCD_FLIP
            ,&remote_flip_display
#endif
#ifdef HAVE_REMOTE_LCD_TICKING
            ,&remote_reduce_ticking
#endif
         );

#endif /* HAVE_REMOTE_LCD */
/* Remote LCD settings menu     */
/********************************/

/***********************************/
/*    SCROLL MENU                  */
MENUITEM_SETTING_W_TEXT(scroll_speed, &global_settings.scroll_speed,
                         ID2P(LANG_SCROLL), NULL);
MENUITEM_SETTING(scroll_delay, &global_settings.scroll_delay, NULL);
#ifdef HAVE_LCD_BITMAP
MENUITEM_SETTING_W_TEXT(scroll_step, &global_settings.scroll_step,
                        ID2P(LANG_SCROLL_STEP_EXAMPLE), NULL);
#endif
MENUITEM_SETTING(bidir_limit, &global_settings.bidir_limit, NULL);
#ifdef HAVE_REMOTE_LCD
MENUITEM_SETTING_W_TEXT(remote_scroll_speed, &global_settings.remote_scroll_speed,
                         ID2P(LANG_SCROLL), NULL);
MENUITEM_SETTING(remote_scroll_delay, &global_settings.remote_scroll_delay, NULL);
MENUITEM_SETTING_W_TEXT(remote_scroll_step, &global_settings.remote_scroll_step,
                        ID2P(LANG_SCROLL_STEP_EXAMPLE), NULL);
MENUITEM_SETTING(remote_bidir_limit, &global_settings.remote_bidir_limit, NULL);

MAKE_MENU(remote_scroll_sets, ID2P(LANG_REMOTE_SCROLL_SETS), 0, Icon_NOICON,
          &remote_scroll_speed, &remote_scroll_delay,
          &remote_scroll_step, &remote_bidir_limit);
#endif /* HAVE_REMOTE_LCD */

/* list acceleration */
#ifndef HAVE_WHEEL_ACCELERATION
MENUITEM_SETTING(list_accel_start_delay,
                 &global_settings.list_accel_start_delay, NULL);
MENUITEM_SETTING(list_accel_wait, &global_settings.list_accel_wait, NULL);
#endif /* HAVE_WHEEL_ACCELERATION */
#ifdef HAVE_LCD_BITMAP
static int screenscroll_callback(int action,const struct menu_item_ex *this_item)
{
    (void)this_item;
    switch (action)
    {
        case ACTION_EXIT_MENUITEM:
            gui_list_screen_scroll_out_of_view(global_settings.offset_out_of_view);
            break;
    }
    return action;
}
MENUITEM_SETTING(offset_out_of_view, &global_settings.offset_out_of_view,
                 screenscroll_callback);
MENUITEM_SETTING(screen_scroll_step, &global_settings.screen_scroll_step, NULL);
#endif
MENUITEM_SETTING(scroll_paginated, &global_settings.scroll_paginated, NULL);

MAKE_MENU(scroll_settings_menu, ID2P(LANG_SCROLL_MENU), 0, Icon_NOICON,
          &scroll_speed, &scroll_delay,
#ifdef HAVE_LCD_BITMAP
          &scroll_step,
#endif
          &bidir_limit,
#ifdef HAVE_REMOTE_LCD
          &remote_scroll_sets,
#endif
#ifdef HAVE_LCD_BITMAP
          &offset_out_of_view, &screen_scroll_step,
#endif
          &scroll_paginated,
#ifndef HAVE_WHEEL_ACCELERATION
          &list_accel_start_delay, &list_accel_wait
#endif
          );
/*    SCROLL MENU                  */
/***********************************/

/***********************************/
/*    PEAK METER MENU              */

#ifdef HAVE_LCD_BITMAP
static int peakmeter_callback(int action,const struct menu_item_ex *this_item)
{
    (void)this_item;
    switch (action)
    {
        case ACTION_EXIT_MENUITEM:
            peak_meter_init_times(global_settings.peak_meter_release,
                                    global_settings.peak_meter_hold,
                                    global_settings.peak_meter_clip_hold);
            break;
    }
    return action;
}
MENUITEM_SETTING(peak_meter_hold, 
                 &global_settings.peak_meter_hold, peakmeter_callback);
MENUITEM_SETTING(peak_meter_clip_hold, 
                 &global_settings.peak_meter_clip_hold, peakmeter_callback);
#ifdef HAVE_RECORDING
MENUITEM_SETTING(peak_meter_clipcounter,
                 &global_settings.peak_meter_clipcounter, NULL);
#endif
MENUITEM_SETTING(peak_meter_release, 
                 &global_settings.peak_meter_release, peakmeter_callback);
/**
 * Menu to select wether the scale of the meter
 * displays dBfs of linear values.
 */
static int peak_meter_scale(void) {
    bool retval = false;
    bool use_dbfs = global_settings.peak_meter_dbfs;
    retval = set_bool_options(str(LANG_PM_SCALE),
        &use_dbfs,
        STR(LANG_PM_DBFS), STR(LANG_PM_LINEAR),
        NULL);

    /* has the user really changed the scale? */
    if (use_dbfs != global_settings.peak_meter_dbfs) {

        /* store the change */
        global_settings.peak_meter_dbfs = use_dbfs;
        peak_meter_set_use_dbfs(use_dbfs);

        /* If the user changed the scale mode the meaning of
           peak_meter_min (peak_meter_max) has changed. Thus we have
           to convert the values stored in global_settings. */
        if (use_dbfs) {

            /* we only store -dBfs */
            global_settings.peak_meter_min = -peak_meter_get_min() / 100;
            global_settings.peak_meter_max = -peak_meter_get_max() / 100;
            
            /* limit the returned value to the allowed range */
            if(global_settings.peak_meter_min > 89)
                global_settings.peak_meter_min = 89;
        } else {
            int max;

            /* linear percent */
            global_settings.peak_meter_min = peak_meter_get_min();

            /* converting dBfs -> percent results in a precision loss.
               I assume that the user doesn't bother that conversion
               dBfs <-> percent isn't symmetrical for odd values but that
               he wants 0 dBfs == 100%. Thus I 'correct' the percent value
               resulting from dBfs -> percent manually here */
            max = peak_meter_get_max();
            global_settings.peak_meter_max = max < 99 ? max : 100;
        }
        settings_apply_pm_range();
    }
    return retval;
}

/**
 * Adjust the min value of the value range that
 * the peak meter shall visualize.
 */
static int peak_meter_min(void) {
    bool retval = false;
    if (global_settings.peak_meter_dbfs) {

        /* for dBfs scale */
        int range_max = -global_settings.peak_meter_max;
        int min = -global_settings.peak_meter_min;

        retval =  set_int(str(LANG_PM_MIN), str(LANG_PM_DBFS), UNIT_DB,
            &min, NULL, 1, -89, range_max, NULL);

        global_settings.peak_meter_min = - min;
    }

    /* for linear scale */
    else {
        int min = global_settings.peak_meter_min;

        retval =  set_int(str(LANG_PM_MIN), "%", UNIT_PERCENT,
            &min, NULL,
            1, 0, global_settings.peak_meter_max - 1, NULL);

        global_settings.peak_meter_min = (unsigned char)min;
    }

    settings_apply_pm_range();
    return retval;
}


/**
 * Adjust the max value of the value range that
 * the peak meter shall visualize.
 */
static int peak_meter_max(void) {
    bool retval = false;
    if (global_settings.peak_meter_dbfs) {

        /* for dBfs scale */
        int range_min = -global_settings.peak_meter_min;
        int max = -global_settings.peak_meter_max;

        retval =  set_int(str(LANG_PM_MAX), str(LANG_PM_DBFS), UNIT_DB,
            &max, NULL, 1, range_min, 0, NULL);

        global_settings.peak_meter_max = - max;

    }

    /* for linear scale */
    else {
        int max = global_settings.peak_meter_max;

        retval =  set_int(str(LANG_PM_MAX), "%", UNIT_PERCENT,
            &max, NULL,
            1, global_settings.peak_meter_min + 1, 100, NULL);

        global_settings.peak_meter_max = (unsigned char)max;
    }

    settings_apply_pm_range();
    return retval;
}
MENUITEM_FUNCTION(peak_meter_scale_item, 0, ID2P(LANG_PM_SCALE),
                    peak_meter_scale, NULL, NULL, Icon_NOICON);
MENUITEM_FUNCTION(peak_meter_min_item, 0, ID2P(LANG_PM_MIN), 
                    peak_meter_min, NULL, NULL, Icon_NOICON);
MENUITEM_FUNCTION(peak_meter_max_item, 0, ID2P(LANG_PM_MAX), 
                    peak_meter_max, NULL, NULL, Icon_NOICON);
MAKE_MENU(peak_meter_menu, ID2P(LANG_PM_MENU), NULL, Icon_NOICON,
          &peak_meter_release, &peak_meter_hold, 
          &peak_meter_clip_hold,
#ifdef HAVE_RECORDING
          &peak_meter_clipcounter,
#endif
          &peak_meter_scale_item, &peak_meter_min_item, &peak_meter_max_item);
#endif /*  HAVE_LCD_BITMAP */
/*    PEAK METER MENU              */
/***********************************/


#ifdef HAVE_TOUCHSCREEN
static int touch_mode_callback(int action,const struct menu_item_ex *this_item)
{
    (void)this_item;
    switch (action)
    {
        case ACTION_EXIT_MENUITEM: /* on exit */
            touchscreen_set_mode(global_settings.touch_mode);
            break;
    }
    return action;
}
MENUITEM_SETTING(touch_mode, &global_settings.touch_mode, touch_mode_callback);

MENUITEM_FUNCTION(touchscreen_menu_calibrate, 0, ID2P(LANG_TOUCHSCREEN_CALIBRATE), calibrate,
                    NULL, NULL, Icon_NOICON);
MENUITEM_FUNCTION(touchscreen_menu_reset_calibration, 0, ID2P(LANG_TOUCHSCREEN_RESET_CALIBRATION), reset_mapping,
                    NULL, NULL, Icon_NOICON);

MAKE_MENU(touchscreen_menu, ID2P(LANG_TOUCHSCREEN_SETTINGS), NULL, Icon_NOICON, &touch_mode,
            &touchscreen_menu_calibrate, &touchscreen_menu_reset_calibration);
#endif


MENUITEM_SETTING(codepage_setting, &global_settings.default_codepage, NULL);


MAKE_MENU(display_menu, ID2P(LANG_DISPLAY),
            NULL, Icon_Display_menu,
            &lcd_settings,
#ifdef HAVE_REMOTE_LCD
            &lcd_remote_settings,
#endif
            &scroll_settings_menu,
#ifdef HAVE_LCD_BITMAP
            &peak_meter_menu,
#endif
            &codepage_setting,
#ifdef HAVE_TOUCHSCREEN
            &touchscreen_menu,
#endif
            );