apps/gui/option_select.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2005 by Kevin Ferrare
  11  * Copyright (C) 2007 by Jonathan Gordon
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License
  15  * as published by the Free Software Foundation; either version 2
  16  * of the License, or (at your option) any later version.
  17  *
  18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  19  * KIND, either express or implied.
  20  *
  21  ****************************************************************************/
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include "config.h"
  25 #include "option_select.h"
  26 #include "sprintf.h"
  27 #include "kernel.h"
  28 #include "lang.h"
  29 #include "talk.h"
  30 #include "settings_list.h"
  31 #include "sound.h"
  32 #include "list.h"
  33 #include "action.h"
  34 #include "statusbar.h"
  35 #include "misc.h"
  36 #include "splash.h"
  37 #include "menu.h"
  38 #include "quickscreen.h"
  39
  40 #if defined (HAVE_SCROLLWHEEL)      || \
  41     (CONFIG_KEYPAD == PLAYER_PAD)
  42 /* Define this if your target makes sense to have
  43    smaller values at the top of the list increasing down the list */
  44 #define ASCENDING_INT_SETTINGS
  45 #endif
  46
  47 static int selection_to_val(const struct settings_list *setting, int selection);
  48 int option_value_as_int(const struct settings_list *setting)
  49 {
  50     int type = (setting->flags & F_T_MASK);
  51     int temp = 0;
  52     if (type == F_T_BOOL)
  53         temp = *(bool*)setting->setting?1:0;
  54     else if (type == F_T_UINT || type == F_T_INT)
  55         temp = *(int*)setting->setting;
  56     return temp;
  57 }
  58 static const char *unit_strings[] =
  59 {
  60     [UNIT_INT] = "",    [UNIT_MS]  = "ms",
  61     [UNIT_SEC] = "s",   [UNIT_MIN] = "min",
  62     [UNIT_HOUR]= "hr",  [UNIT_KHZ] = "kHz",
  63     [UNIT_DB]  = "dB",  [UNIT_PERCENT] = "%",
  64     [UNIT_MAH] = "mAh", [UNIT_PIXEL] = "px",
  65     [UNIT_PER_SEC] = "per sec",
  66     [UNIT_HERTZ] = "Hz",
  67     [UNIT_MB]  = "MB",  [UNIT_KBIT]  = "kb/s",
  68     [UNIT_PM_TICK] = "units/10ms",
  69 };
  70 /* these two vars are needed so arbitrary values can be added to the
  71    TABLE_SETTING settings if the F_ALLOW_ARBITRARY_VALS flag is set */
  72 static int table_setting_oldval = 0, table_setting_array_position = 0;
  73 char *option_get_valuestring(const struct settings_list *setting,
  74                              char *buffer, int buf_len,
  75                              intptr_t temp_var)
  76 {
  77     if ((setting->flags & F_BOOL_SETTING) == F_BOOL_SETTING)
  78     {
  79         bool val = (bool)temp_var;
  80         strncpy(buffer, str(val? setting->bool_setting->lang_yes :
  81                                  setting->bool_setting->lang_no), buf_len);
  82     }
  83 #if 0 /* probably dont need this one */
  84     else if ((setting->flags & F_FILENAME) == F_FILENAME)
  85     {
  86         struct filename_setting *info = setting->filename_setting;
  87         snprintf(buffer, buf_len, "%s%s%s", info->prefix,
  88                  (char*)temp_var, info->suffix);
  89     }
  90 #endif
  91     else if (((setting->flags & F_INT_SETTING) == F_INT_SETTING) ||
  92              ((setting->flags & F_TABLE_SETTING) == F_TABLE_SETTING))
  93     {
  94         const struct int_setting *int_info = setting->int_setting;
  95         const struct table_setting *tbl_info = setting->table_setting;
  96         const char *unit;
  97         void (*formatter)(char*, size_t, int, const char*);
  98         if ((setting->flags & F_INT_SETTING) == F_INT_SETTING)
  99         {
 100             formatter = int_info->formatter;
 101             unit = unit_strings[int_info->unit];
 102         }
 103         else
 104         {
 105             formatter = tbl_info->formatter;
 106             unit = unit_strings[tbl_info->unit];
 107         }
 108         if (formatter)
 109             formatter(buffer, buf_len, (int)temp_var, unit);
 110         else
 111             snprintf(buffer, buf_len, "%d %s", (int)temp_var, unit?unit:"");
 112     }
 113     else if ((setting->flags & F_T_SOUND) == F_T_SOUND)
 114     {
 115         char sign = ' ', *unit;
 116         unit = (char*)sound_unit(setting->sound_setting->setting);
 117         if (sound_numdecimals(setting->sound_setting->setting))
 118         {
 119             int integer, dec;
 120             int val = sound_val2phys(setting->sound_setting->setting,
 121                                  (int)temp_var);
 122             if(val < 0)
 123             {
 124                 sign = '-';
 125                 val = abs(val);
 126             }
 127             integer = val / 10; dec = val % 10;
 128             snprintf(buffer, buf_len, "%c%d.%d %s", sign, integer, dec, unit);
 129         }
 130         else
 131             snprintf(buffer, buf_len, "%d %s", (int)temp_var, unit);
 132     }
 133     else if ((setting->flags & F_CHOICE_SETTING) == F_CHOICE_SETTING)
 134     {
 135         if (setting->flags & F_CHOICETALKS)
 136         {
 137             int setting_id;
 138             const struct choice_setting *info = setting->choice_setting;
 139             if (info->talks[(int)temp_var] < LANG_LAST_INDEX_IN_ARRAY)
 140             {
 141                 strncpy(buffer, str(info->talks[(int)temp_var]), buf_len);
 142             }
 143             else
 144             {
 145                 find_setting(setting->setting, &setting_id);
 146                 cfg_int_to_string(setting_id, (int)temp_var, buffer, buf_len);
 147             }
 148         }
 149         else
 150         {
 151             int value= (int)temp_var;
 152             char *val = P2STR(setting->choice_setting->desc[value]);
 153             strncpy(buffer, val, buf_len);
 154         }
 155     }
 156     return buffer;
 157 }
 158 void option_talk_value(const struct settings_list *setting, int value, bool enqueue)
 159 {
 160     if ((setting->flags & F_BOOL_SETTING) == F_BOOL_SETTING)
 161     {
 162         bool val = value==1?true:false;
 163         talk_id(val? setting->bool_setting->lang_yes :
 164                 setting->bool_setting->lang_no, enqueue);
 165     }
 166 #if 0 /* probably dont need this one */
 167     else if ((setting->flags & F_FILENAME) == F_FILENAME)
 168     {
 169 }
 170 #endif
 171     else if (((setting->flags & F_INT_SETTING) == F_INT_SETTING) ||
 172                ((setting->flags & F_TABLE_SETTING) == F_TABLE_SETTING))
 173     {
 174         const struct int_setting *int_info = setting->int_setting;
 175         const struct table_setting *tbl_info = setting->table_setting;
 176         int unit;
 177         int32_t (*get_talk_id)(int, int);
 178         if ((setting->flags & F_INT_SETTING) == F_INT_SETTING)
 179         {
 180             unit = int_info->unit;
 181             get_talk_id = int_info->get_talk_id;
 182         }
 183         else
 184         {
 185             unit = tbl_info->unit;
 186             get_talk_id = tbl_info->get_talk_id;
 187         }
 188         if (get_talk_id)
 189             talk_id(get_talk_id(value, unit), enqueue);
 190         else
 191             talk_value(value, unit, enqueue);
 192     }
 193     else if ((setting->flags & F_T_SOUND) == F_T_SOUND)
 194     {
 195         int talkunit = UNIT_INT;
 196         const char *unit = sound_unit(setting->sound_setting->setting);
 197         if (!strcmp(unit, "dB"))
 198             talkunit = UNIT_DB;
 199         else if (!strcmp(unit, "%"))
 200             talkunit = UNIT_PERCENT;
 201         else if (!strcmp(unit, "Hz"))
 202             talkunit = UNIT_HERTZ;
 203         talk_value(value, talkunit, false);
 204     }
 205     else if ((setting->flags & F_CHOICE_SETTING) == F_CHOICE_SETTING)
 206     {
 207         if (setting->flags & F_CHOICETALKS)
 208         {
 209             talk_id(setting->choice_setting->talks[value], enqueue);
 210         }
 211         else
 212         {
 213             talk_id(P2ID(setting->choice_setting->desc[value]), enqueue);
 214         }
 215     }
 216 }
 217
 218 static int option_talk(int selected_item, void * data)
 219 {
 220     struct settings_list *setting = (struct settings_list *)data;
 221     int temp_var = selection_to_val(setting, selected_item);
 222     option_talk_value(setting, temp_var, false);
 223     return 0;
 224 }
 225
 226 #if defined(HAVE_QUICKSCREEN) || defined(HAVE_RECORDING)
 227    /* only the quickscreen and recording trigger needs this */
 228 void option_select_next_val(const struct settings_list *setting,
 229                             bool previous, bool apply)
 230 {
 231     int val = 0;
 232     int *value = setting->setting;
 233     if ((setting->flags & F_BOOL_SETTING) == F_BOOL_SETTING)
 234     {
 235         *(bool*)value = !*(bool*)value;
 236         if (apply && setting->bool_setting->option_callback)
 237             setting->bool_setting->option_callback(*(bool*)value);
 238         return;
 239     }
 240     else if ((setting->flags & F_INT_SETTING) == F_INT_SETTING)
 241     {
 242         struct int_setting *info = (struct int_setting *)setting->int_setting;
 243         int step = info->step;
 244         if (step < 0)
 245             step = -step;
 246         if (!previous)
 247         {
 248             val = *value + step;
 249             if (val > info->max)
 250                 val = info->min;
 251         }
 252         else
 253         {
 254             val = *value - step;
 255             if (val < info->min)
 256                 val = info->max;
 257         }
 258         if (apply && info->option_callback)
 259             info->option_callback(val);
 260     }
 261     else if ((setting->flags & F_T_SOUND) == F_T_SOUND)
 262     {
 263         int setting_id = setting->sound_setting->setting;
 264         int steps = sound_steps(setting_id);
 265         int min = sound_min(setting_id);
 266         int max = sound_max(setting_id);
 267         if (!previous)
 268         {
 269             val = *value + steps;
 270             if (val >= max)
 271                 val = min;
 272         }
 273         else
 274         {
 275             val = *value - steps;
 276             if (val < min)
 277                 val = max;
 278         }
 279     }
 280     else if ((setting->flags & F_CHOICE_SETTING) == F_CHOICE_SETTING)
 281     {
 282         struct choice_setting *info = (struct choice_setting *)setting->choice_setting;
 283         val = *value + 1;
 284         if (!previous)
 285         {
 286             val = *value + 1;
 287             if (val >= info->count)
 288                 val = 0;
 289         }
 290         else
 291         {
 292             val = *value - 1;
 293             if (val < 0)
 294                 val = info->count-1;
 295         }
 296         if (apply && info->option_callback)
 297             info->option_callback(val);
 298     }
 299     else if ((setting->flags & F_TABLE_SETTING) == F_TABLE_SETTING)
 300     {
 301         const struct table_setting *tbl_info = setting->table_setting;
 302         int i, add;
 303         add = previous?tbl_info->count-1:1;
 304         for (i=0; i<tbl_info->count;i++)
 305         {
 306             if ((*value == tbl_info->values[i]) ||
 307                   (settings->flags&F_ALLOW_ARBITRARY_VALS &&
 308                     *value < tbl_info->values[i]))
 309             {
 310                 val = tbl_info->values[(i+add)%tbl_info->count];
 311                 break;
 312             }
 313         }
 314     }
 315     *value = val;
 316 }
 317 #endif
 318
 319 static int selection_to_val(const struct settings_list *setting, int selection)
 320 {
 321     int min = 0, max = 0, step = 1;
 322     if (((setting->flags & F_BOOL_SETTING) == F_BOOL_SETTING) ||
 323           ((setting->flags & F_CHOICE_SETTING) == F_CHOICE_SETTING))
 324         return selection;
 325     else if ((setting->flags & F_TABLE_SETTING) == F_TABLE_SETTING)
 326     {
 327         const struct table_setting *info = setting->table_setting;
 328         if (setting->flags&F_ALLOW_ARBITRARY_VALS &&
 329             table_setting_array_position != -1    &&
 330             (selection >= table_setting_array_position))
 331         {
 332             if (selection == table_setting_array_position)
 333                 return table_setting_oldval;
 334             return info->values[selection-1];
 335         }
 336         else
 337             return info->values[selection];
 338     }
 339     else if ((setting->flags & F_T_SOUND) == F_T_SOUND)
 340     {
 341         int setting_id = setting->sound_setting->setting;
 342 #ifndef ASCENDING_INT_SETTINGS
 343         step = sound_steps(setting_id);
 344         max = sound_max(setting_id);
 345         min = sound_min(setting_id);
 346 #else
 347         step = -sound_steps(setting_id);
 348         min = sound_max(setting_id);
 349         max = sound_min(setting_id);
 350 #endif
 351     }
 352     else if ((setting->flags & F_INT_SETTING) == F_INT_SETTING)
 353     {
 354         const struct int_setting *info = setting->int_setting;
 355 #ifndef ASCENDING_INT_SETTINGS
 356         min = info->min;
 357         max = info->max;
 358         step = info->step;
 359 #else
 360         max = info->min;
 361         min = info->max;
 362         step = -info->step;
 363 #endif
 364     }
 365     return max- (selection * step);
 366 }
 367 static char * value_setting_get_name_cb(int selected_item,
 368                                         void * data,
 369                                         char *buffer,
 370                                         size_t buffer_len)
 371 {
 372     selected_item = selection_to_val(data, selected_item);
 373     return option_get_valuestring(data, buffer, buffer_len, selected_item);
 374 }
 375
 376 /* wrapper to convert from int param to bool param in option_screen */
 377 static void (*boolfunction)(bool);
 378 static void bool_funcwrapper(int value)
 379 {
 380     if (value)
 381         boolfunction(true);
 382     else
 383         boolfunction(false);
 384 }
 385
 386 static void val_to_selection(const struct settings_list *setting, int oldvalue,
 387                              int *nb_items, int *selected,
 388                              void (**function)(int))
 389 {
 390     int var_type = setting->flags&F_T_MASK;
 391     /* set the number of items and current selection */
 392     if (var_type == F_T_INT || var_type == F_T_UINT)
 393     {
 394         if (setting->flags&F_CHOICE_SETTING)
 395         {
 396             *nb_items = setting->choice_setting->count;
 397             *selected = oldvalue;
 398             *function = setting->choice_setting->option_callback;
 399         }
 400         else if (setting->flags&F_TABLE_SETTING)
 401         {
 402             const struct table_setting *info = setting->table_setting;
 403             int i;
 404             *nb_items = info->count;
 405             *selected = -1;
 406             table_setting_array_position = -1;
 407             for (i=0;*selected==-1 && i<*nb_items;i++)
 408             {
 409                 if (setting->flags&F_ALLOW_ARBITRARY_VALS &&
 410                     (oldvalue < info->values[i]))
 411                 {
 412                     table_setting_oldval = oldvalue;
 413                     table_setting_array_position = i;
 414                     *selected = i;
 415                     (*nb_items)++;
 416                 }
 417                 else if (oldvalue == info->values[i])
 418                     *selected = i;
 419             }
 420             *function = info->option_callback;
 421         }
 422         else if (setting->flags&F_T_SOUND)
 423         {
 424             int setting_id = setting->sound_setting->setting;
 425             int steps = sound_steps(setting_id);
 426             int min = sound_min(setting_id);
 427             int max = sound_max(setting_id);
 428             *nb_items = (max-min)/steps + 1;
 429 #ifndef ASCENDING_INT_SETTINGS
 430             *selected = (max - oldvalue) / steps;
 431 #else
 432             *selected = (oldvalue - min) / steps;
 433 #endif
 434             *function = sound_get_fn(setting_id);
 435         }
 436         else
 437         {
 438             const struct int_setting *info = setting->int_setting;
 439             int min, max, step;
 440             max = info->max;
 441             min = info->min;
 442             step = info->step;
 443             *nb_items = (max-min)/step + 1;
 444 #ifndef ASCENDING_INT_SETTINGS
 445             *selected = (max - oldvalue) / step;
 446 #else
 447             *selected = (oldvalue - min) / step;
 448 #endif
 449             *function = info->option_callback;
 450         }
 451     }
 452     else if (var_type == F_T_BOOL)
 453     {
 454         *selected = oldvalue;
 455         *nb_items = 2;
 456         boolfunction = setting->bool_setting->option_callback;
 457         if (boolfunction)
 458             *function = bool_funcwrapper;
 459     }
 460 }
 461
 462 bool option_screen(const struct settings_list *setting,
 463                    struct viewport parent[NB_SCREENS],
 464                    bool use_temp_var, unsigned char* option_title)
 465 {
 466     int action;
 467     bool done = false;
 468     struct gui_synclist lists;
 469     int oldvalue, nb_items = 0, selected = 0, temp_var;
 470     int *variable;
 471     bool allow_wrap = setting->flags & F_NO_WRAP ? false : true;
 472     int var_type = setting->flags&F_T_MASK;
 473     void (*function)(int) = NULL;
 474     char *title;
 475     if (var_type == F_T_INT || var_type == F_T_UINT)
 476     {
 477         variable = use_temp_var ? &temp_var: (int*)setting->setting;
 478         temp_var = oldvalue = *(int*)setting->setting;
 479     }
 480     else if (var_type == F_T_BOOL)
 481     {
 482         /* bools always use the temp variable...
 483         if use_temp_var is false it will be copied to setting->setting every change */
 484         variable = &temp_var;
 485         temp_var = oldvalue = *(bool*)setting->setting?1:0;
 486     }
 487     else return false; /* only int/bools can go here */
 488     gui_synclist_init(&lists, value_setting_get_name_cb,
 489                       (void*)setting, false, 1, parent);
 490     if (setting->lang_id == -1)
 491         title = (char*)setting->cfg_vals;
 492     else
 493         title = P2STR(option_title);
 494
 495     gui_synclist_set_title(&lists, title, Icon_Questionmark);
 496     gui_synclist_set_icon_callback(&lists, NULL);
 497     if(global_settings.talk_menu)
 498         gui_synclist_set_voice_callback(&lists, option_talk);
 499
 500     val_to_selection(setting, oldvalue, &nb_items, &selected, &function);
 501     gui_synclist_set_nb_items(&lists, nb_items);
 502     gui_synclist_select_item(&lists, selected);
 503
 504     gui_synclist_limit_scroll(&lists, true);
 505     gui_synclist_draw(&lists);
 506     /* talk the item */
 507     gui_synclist_speak_item(&lists);
 508     while (!done)
 509     {
 510         if (list_do_action(CONTEXT_LIST, TIMEOUT_BLOCK,
 511                            &lists, &action,
 512             allow_wrap? LIST_WRAP_UNLESS_HELD: LIST_WRAP_OFF))
 513         {
 514             /* setting changed */
 515             selected = gui_synclist_get_sel_pos(&lists);
 516             *variable = selection_to_val(setting, selected);
 517             if (var_type == F_T_BOOL && !use_temp_var)
 518                 *(bool*)setting->setting = (*variable==1);
 519         }
 520         else if (action == ACTION_NONE)
 521             continue;
 522         else if (action == ACTION_STD_CANCEL)
 523         {
 524             /* setting canceled, restore old value if changed */
 525             if (*variable != oldvalue)
 526             {
 527                 *variable = oldvalue;
 528                 if (var_type == F_T_BOOL && !use_temp_var)
 529                     *(bool*)setting->setting = (oldvalue==1);
 530                 splash(HZ/2, ID2P(LANG_CANCEL));
 531             }
 532             done = true;
 533         }
 534         else if (action == ACTION_STD_CONTEXT)
 535         {
 536             /* reset setting to default */
 537             reset_setting(setting, variable);
 538             if (var_type == F_T_BOOL && !use_temp_var)
 539                 *(bool*)setting->setting = (*variable==1);
 540             val_to_selection(setting, *variable, &nb_items,
 541                                 &selected, &function);
 542             gui_synclist_select_item(&lists, selected);
 543             gui_synclist_draw(&lists);
 544             gui_synclist_speak_item(&lists);
 545         }
 546         else if (action == ACTION_STD_OK)
 547         {
 548             /* setting accepted, store now if it used a temp var */
 549             if (use_temp_var)
 550             {
 551                 if (var_type == F_T_INT || var_type == F_T_UINT)
 552                     *(int*)setting->setting = *variable;
 553                 else
 554                     *(bool*)setting->setting = (*variable==1);
 555             }
 556             settings_save();
 557             done = true;
 558         }
 559         else if(default_event_handler(action) == SYS_USB_CONNECTED)
 560             return true;
 561         /* callback */
 562         if ( function )
 563             function(*variable);
 564     }
 565     return false;
 566 }
 567