apps/recorder/keyboard.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 by Bj�rn Stenberg
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include "kernel.h"
  22 #include "system.h"
  23 #include "version.h"
  24 #include <string.h>
  25 #include "font.h"
  26 #include "screens.h"
  27 #include "statusbar.h"
  28 #include "talk.h"
  29 #include "settings.h"
  30 #include "misc.h"
  31 #include "rbunicode.h"
  32 #include "buttonbar.h"
  33 #include "logf.h"
  34 #include "hangul.h"
  35 #include "action.h"
  36 #include "icon.h"
  37 #include "pcmbuf.h"
  38 #include "lang.h"
  39 #include "keyboard.h"
  40 #include "viewport.h"
  41
  42 #ifndef O_BINARY
  43 #define O_BINARY 0
  44 #endif
  45
  46
  47 #define DEFAULT_MARGIN 6
  48 #define KBD_BUF_SIZE 500
  49
  50 #if (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
  51     (CONFIG_KEYPAD == IRIVER_H300_PAD)
  52 #define KBD_CURSOR_KEYS /* certain key combos move the cursor even if not
  53                            in line edit mode */
  54 #define KBD_MODES /* I-Rivers can use picker, line edit and cursor keys */
  55 #define KBD_MORSE_INPUT /* I-Rivers have a Morse input mode */
  56
  57 #elif CONFIG_KEYPAD == ONDIO_PAD /* restricted Ondio keypad */
  58 #define KBD_MODES /* Ondio uses 2 modes, picker and line edit */
  59
  60 #elif (CONFIG_KEYPAD == IPOD_1G2G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD) \
  61    || (CONFIG_KEYPAD == IPOD_4G_PAD)
  62 #define KBD_MODES /* iPod uses 2 modes, picker and line edit */
  63 #define KBD_MORSE_INPUT
  64
  65 #elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
  66 #define KBD_MODES /* iFP7xx uses 2 modes, picker and line edit */
  67
  68 #elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD) || (CONFIG_KEYPAD == IAUDIO_M3_PAD)
  69 #define KBD_MODES /* iAudios use 2 modes, picker and line edit */
  70
  71 #elif CONFIG_KEYPAD == IRIVER_H10_PAD
  72 #define KBD_MODES /* iriver H10 uses 2 modes, picker and line edit */
  73 #define KBD_MORSE_INPUT
  74
  75 #elif CONFIG_KEYPAD == GIGABEAT_PAD
  76 #define KBD_CURSOR_KEYS
  77 #define KBD_MODES
  78 #define KBD_MORSE_INPUT
  79
  80 #elif CONFIG_KEYPAD == SANSA_E200_PAD
  81 #define KBD_CURSOR_KEYS
  82 #define KBD_MODES
  83
  84 #elif CONFIG_KEYPAD == MROBE100_PAD
  85 #define KBD_MORSE_INPUT
  86 #endif
  87
  88 struct keyboard_parameters
  89 {
  90     const unsigned char* default_kbd;
  91     int DEFAULT_LINES;
  92     unsigned short kbd_buf[KBD_BUF_SIZE];
  93     int nchars;
  94     int font_w;
  95     int font_h;
  96     struct font* font;
  97     int curfont;
  98     int main_x;
  99     int main_y;
 100     int max_chars;
 101     int max_chars_text;
 102     int lines;
 103     int pages;
 104     int keyboard_margin;
 105     int old_main_y;
 106     int curpos;
 107     int leftpos;
 108     int page;
 109     int x;
 110     int y;
 111 #ifdef KBD_MODES
 112     bool line_edit;
 113 #endif
 114     bool hangul;
 115     unsigned short hlead, hvowel, htail;
 116 };
 117
 118 static struct keyboard_parameters kbd_param[NB_SCREENS];
 119 static bool kbd_loaded = false;
 120
 121 #ifdef KBD_MORSE_INPUT
 122 /* FIXME: We should put this to a configuration file. */
 123 static const char *morse_alphabets =
 124     "abcdefghijklmnopqrstuvwxyz1234567890,.?-@ ";
 125 static const unsigned char morse_codes[] = {
 126     0x05,0x18,0x1a,0x0c,0x02,0x12,0x0e,0x10,0x04,0x17,0x0d,0x14,0x07,
 127     0x06,0x0f,0x16,0x1d,0x0a,0x08,0x03,0x09,0x11,0x0b,0x19,0x1b,0x1c,
 128     0x2f,0x27,0x23,0x21,0x20,0x30,0x38,0x3c,0x3e,0x3f,
 129     0x73,0x55,0x4c,0x61,0x5a,0x80 };
 130
 131 static bool morse_mode = false;
 132 #endif
 133
 134 /* Loads a custom keyboard into memory
 135    call with NULL to reset keyboard    */
 136 int load_kbd(unsigned char* filename)
 137 {
 138     int fd, l;
 139     int i = 0;
 140     unsigned char buf[4];
 141
 142     if (filename == NULL)
 143     {
 144         kbd_loaded = false;
 145         return 0;
 146     }
 147
 148     fd = open_utf8(filename, O_RDONLY|O_BINARY);
 149     if (fd < 0)
 150         return 1;
 151
 152     while (read(fd, buf, 1) == 1 && i < KBD_BUF_SIZE)
 153     {
 154         /* check how many bytes to read for this character */
 155         static const unsigned char sizes[4] = { 0x80, 0xe0, 0xf0, 0xf5 };
 156         size_t count;
 157
 158         for (count = 0; count < ARRAYLEN(sizes); count++)
 159         {
 160             if (buf[0] < sizes[count])
 161                 break;
 162         }
 163
 164         if (count >= ARRAYLEN(sizes))
 165             continue; /* Invalid size. */
 166
 167         if (read(fd, &buf[1], count) != (ssize_t)count)
 168         {
 169             close(fd);
 170             kbd_loaded = false;
 171             return 1;
 172         }
 173
 174         FOR_NB_SCREENS(l)
 175             utf8decode(buf, &kbd_param[l].kbd_buf[i]);
 176
 177         if (kbd_param[0].kbd_buf[i] != 0xFEFF &&
 178             kbd_param[0].kbd_buf[i] != '\r') /*skip BOM & carriage returns */
 179         {
 180             i++;
 181         }
 182     }
 183
 184     close(fd);
 185     kbd_loaded = true;
 186
 187     FOR_NB_SCREENS(l)
 188         kbd_param[l].nchars = i;
 189
 190     return 0;
 191 }
 192
 193 /* helper function to spell a char if voice UI is enabled */
 194 static void kbd_spellchar(unsigned short c)
 195 {
 196     if (global_settings.talk_menu) /* voice UI? */
 197     {
 198         unsigned char tmp[5];
 199         /* store char to pass to talk_spell */
 200         unsigned char* utf8 = utf8encode(c, tmp);
 201         *utf8 = 0;
 202
 203         if(c == ' ')
 204             talk_id(VOICE_BLANK, false);
 205         else
 206             talk_spell(tmp, false);
 207     }
 208 }
 209
 210 #ifdef KBD_MODES
 211 static void say_edit(void)
 212 {
 213     if(global_settings.talk_menu)
 214         talk_id(VOICE_EDIT, false);
 215 }
 216 #endif
 217
 218 static void kbd_inschar(unsigned char* text, int buflen,
 219                         int* editpos, unsigned short ch)
 220 {
 221     int i, j, k, len;
 222     unsigned char tmp[4];
 223     unsigned char* utf8;
 224
 225     len = strlen(text);
 226     k = utf8length(text);
 227     utf8 = utf8encode(ch, tmp);
 228     j = (long)utf8 - (long)tmp;
 229
 230     if (len + j < buflen)
 231     {
 232         for (i = len+j; k >= *editpos; i--)
 233         {
 234             text[i] = text[i-j];
 235             if ((text[i] & MASK) != COMP)
 236                 k--;
 237         }
 238
 239         while (j--)
 240             text[i--] = tmp[j];
 241
 242         (*editpos)++;
 243     }
 244 }
 245
 246 static void kbd_delchar(unsigned char* text, int* editpos)
 247 {
 248     int i = 0;
 249     unsigned char* utf8;
 250
 251     if (*editpos > 0)
 252     {
 253         utf8 = text + utf8seek(text, *editpos);
 254
 255         do
 256         {
 257             i++;
 258             utf8--;
 259         }
 260         while ((*utf8 & MASK) == COMP);
 261
 262         while (utf8[i])
 263         {
 264             *utf8 = utf8[i];
 265             utf8++;
 266         }
 267
 268         *utf8 = 0;
 269         (*editpos)--;
 270     }
 271 }
 272
 273 /* Lookup k value based on state of param (pm) */
 274 static int get_param_k(const struct keyboard_parameters *pm)
 275 {
 276     return (pm->page*pm->lines + pm->y)*pm->max_chars + pm->x;
 277 }
 278
 279 int kbd_input(char* text, int buflen)
 280 {
 281     bool done = false;
 282 #ifdef CPU_ARM
 283     /* This seems to keep the sizes for ARM way down */
 284     struct keyboard_parameters * volatile param = kbd_param;
 285 #else
 286     struct keyboard_parameters * const param = kbd_param;
 287 #endif
 288     int l; /* screen loop variable */
 289     int text_w = 0;
 290     int editpos;                /* Edit position on all screens */
 291     const int statusbar_size = 0;
 292     unsigned short ch;
 293     unsigned char *utf8;
 294     bool cur_blink = true;      /* Cursor on/off flag */
 295 #ifdef KBD_MORSE_INPUT
 296     bool morse_reading = false;
 297     unsigned char morse_code = 0;
 298     int morse_tick = 0;
 299     char buf[2];
 300 #endif
 301     int oldbars = viewportmanager_set_statusbar(VP_SB_HIDE_ALL);
 302     FOR_NB_SCREENS(l)
 303     {
 304         struct keyboard_parameters *pm = &param[l];
 305 #if LCD_WIDTH >= 160 && LCD_HEIGHT >= 96
 306         struct screen *sc = &screens[l];
 307
 308         if (sc->getwidth() >= 160 && sc->getheight() >= 96)
 309         {
 310             pm->default_kbd =
 311                 "ABCDEFG abcdefg !?\" @#$%+'\n"
 312                 "HIJKLMN hijklmn 789 &_()-`\n"
 313                 "OPQRSTU opqrstu 456 §|{}/<\n"
 314                 "VWXYZ., vwxyz.,0123 ~=[]*>\n"
 315                 "ÀÁÂÃÄÅÆ ÌÍÎÏ ÈÉÊË ¢£¤¥¦§©®\n"
 316                 "àáâãäåæ ìíîï èéêë «»°ºª¹²³\n"
 317                 "ÓÒÔÕÖØ ÇÐÞÝß ÙÚÛÜ ¯±×÷¡¿µ·\n"
 318                 "òóôõöø çðþýÿ ùúûü ¼½¾¬¶¨:;";
 319
 320             pm->DEFAULT_LINES = 8;
 321         }
 322         else
 323 #endif /* LCD_WIDTH >= 160 && LCD_HEIGHT >= 96 */
 324         {
 325             pm->default_kbd =
 326                 "ABCDEFG !?\" @#$%+'\n"
 327                 "HIJKLMN 789 &_()-`\n"
 328                 "OPQRSTU 456 §|{}/<\n"
 329                 "VWXYZ.,0123 ~=[]*>\n"
 330
 331                 "abcdefg ¢£¤¥¦§©®¬\n"
 332                 "hijklmn «»°ºª¹²³¶\n"
 333                 "opqrstu ¯±×÷¡¿µ·¨\n"
 334                 "vwxyz., :;¼½¾    \n"
 335
 336                 "ÀÁÂÃÄÅÆ ÌÍÎÏ ÈÉÊË\n"
 337                 "àáâãäåæ ìíîï èéêë\n"
 338                 "ÓÒÔÕÖØ ÇÐÞÝß ÙÚÛÜ\n"
 339                 "òóôõöø çðþýÿ ùúûü";
 340
 341             pm->DEFAULT_LINES = 4;
 342         }
 343     }
 344
 345     char outline[256];
 346 #ifdef HAVE_BUTTONBAR
 347     struct gui_buttonbar buttonbar;
 348     bool buttonbar_config = global_settings.buttonbar;
 349
 350     global_settings.buttonbar = true;
 351     gui_buttonbar_init(&buttonbar);
 352
 353     FOR_NB_SCREENS(l)
 354         gui_buttonbar_set_display(&buttonbar, &screens[l]);
 355 #endif
 356
 357     FOR_NB_SCREENS(l)
 358     {
 359         struct keyboard_parameters *pm = &param[l];
 360
 361         if ( !kbd_loaded )
 362         {
 363             /* Copy default keyboard to buffer */
 364             const unsigned char *p = pm->default_kbd;
 365             int i = 0;
 366
 367             pm->curfont = FONT_SYSFIXED;
 368
 369             while (*p != 0)
 370                 p = utf8decode(p, &pm->kbd_buf[i++]);
 371
 372             pm->nchars = i;
 373         }
 374         else
 375         {
 376             pm->curfont = FONT_UI;
 377         }
 378     }
 379
 380     FOR_NB_SCREENS(l)
 381     {
 382         struct keyboard_parameters *pm = &param[l];
 383         struct screen *sc = &screens[l];
 384         int i, w;
 385
 386         pm->font = font_get(pm->curfont);
 387         pm->font_h = pm->font->height;
 388
 389         /* check if FONT_UI fits the screen */
 390         if (2*pm->font_h + 3 + statusbar_size +
 391             BUTTONBAR_HEIGHT > sc->getheight())
 392         {
 393             pm->font = font_get(FONT_SYSFIXED);
 394             pm->font_h = pm->font->height;
 395             pm->curfont = FONT_SYSFIXED;
 396         }
 397
 398         sc->setfont(pm->curfont);
 399         pm->font_w = 0; /* reset font width */
 400         /* find max width of keyboard glyphs */
 401         for (i = 0; i < pm->nchars; i++)
 402         {
 403             w = font_get_width(pm->font, pm->kbd_buf[i]);
 404             if ( w > pm->font_w )
 405                 pm->font_w = w;
 406         }
 407
 408         /* Since we're going to be adding spaces, make sure that we check
 409          * their width too */
 410         w = font_get_width( pm->font, ' ' );
 411         if ( w > pm->font_w )
 412             pm->font_w = w;
 413     }
 414
 415     FOR_NB_SCREENS(l)
 416     {
 417         struct keyboard_parameters *pm = &param[l];
 418         struct screen *sc = &screens[l];
 419         int i = 0;
 420
 421         /* Pad lines with spaces */
 422         while (i < pm->nchars)
 423         {
 424             if (pm->kbd_buf[i] == '\n')
 425             {
 426                 int k = sc->getwidth() / pm->font_w
 427                         - i % ( sc->getwidth() / pm->font_w ) - 1;
 428                 int j;
 429
 430                 if (k == sc->getwidth() / pm->font_w - 1)
 431                 {
 432                     pm->nchars--;
 433
 434                     for (j = i; j < pm->nchars; j++)
 435                     {
 436                         pm->kbd_buf[j] = pm->kbd_buf[j + 1];
 437                     }
 438                 }
 439                 else
 440                 {
 441                     if (pm->nchars + k - 1 >= KBD_BUF_SIZE)
 442                     {   /* We don't want to overflow the buffer */
 443                         k = KBD_BUF_SIZE - pm->nchars;
 444                     }
 445
 446                     for (j = pm->nchars + k - 1; j > i + k; j--)
 447                     {
 448                         pm->kbd_buf[j] = pm->kbd_buf[j-k];
 449                     }
 450
 451                     pm->nchars += k;
 452                     k++;
 453
 454                     while (k--)
 455                     {
 456                         pm->kbd_buf[i++] = ' ';
 457                     }
 458                 }
 459             }
 460             else
 461             {
 462                 i++;
 463             }
 464         }
 465     }
 466
 467     /* Find max width for text string */
 468     utf8 = text;
 469     FOR_NB_SCREENS(l)
 470     {
 471         struct keyboard_parameters *pm = &param[l];
 472         struct screen *sc = &screens[l];
 473
 474         text_w = pm->font_w;
 475
 476         while (*utf8)
 477         {
 478             int w = font_get_width(pm->font, ch);
 479             utf8 = (unsigned char*)utf8decode(utf8, &ch);
 480
 481             if (w > text_w)
 482                 text_w = w;
 483         }
 484
 485         pm->max_chars_text = sc->getwidth() / text_w - 2;
 486
 487         /* Calculate keyboard grid size */
 488         pm->max_chars = sc->getwidth() / pm->font_w;
 489
 490         if (!kbd_loaded)
 491         {
 492             pm->lines = pm->DEFAULT_LINES;
 493             pm->keyboard_margin = DEFAULT_MARGIN;
 494         }
 495         else
 496         {
 497             pm->lines = (sc->getheight() - BUTTONBAR_HEIGHT - statusbar_size)
 498                             / pm->font_h - 1;
 499             pm->keyboard_margin = sc->getheight() - BUTTONBAR_HEIGHT -
 500                 statusbar_size - (pm->lines+1)*pm->font_h;
 501
 502             if (pm->keyboard_margin < 3)
 503             {
 504                 pm->lines--;
 505                 pm->keyboard_margin += pm->font_h;
 506             }
 507
 508             if (pm->keyboard_margin > 6)
 509                 pm->keyboard_margin = 6;
 510         }
 511
 512         pm->pages = (pm->nchars + (pm->lines*pm->max_chars-1))
 513              / (pm->lines*pm->max_chars);
 514
 515         if (pm->pages == 1 && kbd_loaded)
 516             pm->lines = (pm->nchars + pm->max_chars - 1) / pm->max_chars;
 517
 518         pm->main_y = pm->font_h*pm->lines + pm->keyboard_margin + statusbar_size;
 519         pm->main_x = 0;
 520         pm->keyboard_margin -= pm->keyboard_margin/2;
 521
 522 #ifdef KBD_MORSE_INPUT
 523         pm->old_main_y = pm->main_y;
 524         if (morse_mode)
 525             pm->main_y = sc->getheight() - pm->font_h;
 526 #endif
 527     }
 528
 529     /* Initial edit position is after last character */
 530     editpos = utf8length(text);
 531
 532     if (global_settings.talk_menu) /* voice UI? */
 533         talk_spell(text, true); /* spell initial text */
 534
 535
 536     while (!done)
 537     {
 538         /* These declarations are assigned to the screen on which the key
 539            action occurred - pointers save a lot of space over array notation
 540            when accessing the same array element countless times */
 541         int button;
 542 #if NB_SCREENS > 1
 543         int button_screen;
 544 #else
 545         const int button_screen = 0;
 546 #endif
 547         struct keyboard_parameters *pm;
 548         struct screen *sc;
 549
 550         int len_utf8 = utf8length(text);
 551
 552         FOR_NB_SCREENS(l)
 553             screens[l].clear_display();
 554
 555 #ifdef KBD_MORSE_INPUT
 556         if (morse_mode)
 557         {
 558             FOR_NB_SCREENS(l)
 559             {
 560                 /* declare scoped pointers inside screen loops - hide the
 561                    declarations from previous block level */
 562                 const int w = 6; /* sysfixed font width */
 563                 struct keyboard_parameters *pm = &param[l];
 564                 struct screen *sc = &screens[l];
 565                 int i;
 566
 567                 sc->setfont(FONT_SYSFIXED); /* Draw morse code screen with sysfont */
 568                 pm->x = 0;
 569                 pm->y = statusbar_size;
 570                 buf[1] = '\0';
 571
 572                 /* Draw morse code table with code descriptions. */
 573                 for (i = 0; morse_alphabets[i] != '\0'; i++)
 574                 {
 575                     int morse_len;
 576                     int j;
 577
 578                     buf[0] = morse_alphabets[i];
 579                     sc->putsxy(pm->x, pm->y, buf);
 580
 581                     for (j = 0; (morse_codes[i] >> j) > 0x01; j++) ;
 582                     morse_len = j;
 583
 584                     pm->x += w + 3;
 585                     for (j = 0; j < morse_len; j++)
 586                     {
 587                         if ((morse_codes[i] >> (morse_len-j-1)) & 0x01)
 588                             sc->fillrect(pm->x + j*4, pm->y + 2, 3, 4);
 589                         else
 590                             sc->fillrect(pm->x + j*4, pm->y + 3, 1, 2);
 591                     }
 592
 593                     pm->x += w*5 - 3;
 594                     if (pm->x >= sc->getwidth() - w*6)
 595                     {
 596                         pm->x = 0;
 597                         pm->y += 8; /* sysfixed font height */
 598                     }
 599                 }
 600             }
 601         }
 602         else
 603 #endif /* KBD_MORSE_INPUT */
 604         {
 605             /* draw page */
 606             FOR_NB_SCREENS(l)
 607             {
 608                 struct keyboard_parameters *pm = &param[l];
 609                 struct screen *sc = &screens[l];
 610                 int i, j, k;
 611
 612                 sc->setfont(pm->curfont);
 613
 614                 k = pm->page*pm->max_chars*pm->lines;
 615
 616                 for (i = j = 0; j < pm->lines && k < pm->nchars; k++)
 617                 {
 618                     int w;
 619                     utf8 = utf8encode(pm->kbd_buf[k], outline);
 620                     *utf8 = 0;
 621
 622                     sc->getstringsize(outline, &w, NULL);
 623                     sc->putsxy(i*pm->font_w + (pm->font_w-w) / 2,
 624                                j*pm->font_h + statusbar_size, outline);
 625
 626                     if (++i >= pm->max_chars)
 627                     {
 628                         i = 0;
 629                         j++;
 630                     }
 631                 }
 632             }
 633         }
 634
 635         /* separator */
 636         FOR_NB_SCREENS(l)
 637         {
 638             struct keyboard_parameters *pm = &param[l];
 639             struct screen *sc = &screens[l];
 640             int i = 0, j = 0;
 641
 642             /* Clear text area one pixel above separator line so any overdraw
 643                doesn't collide */
 644             sc->set_drawmode(DRMODE_SOLID | DRMODE_INVERSEVID);
 645             sc->fillrect(0, pm->main_y - pm->keyboard_margin - 1,
 646                          sc->getwidth(), pm->font_h + 4);
 647             sc->set_drawmode(DRMODE_SOLID);
 648
 649             sc->hline(0, sc->getwidth() - 1, pm->main_y - pm->keyboard_margin);
 650
 651             /* write out the text */
 652             sc->setfont(pm->curfont);
 653
 654             pm->curpos = MIN(editpos, pm->max_chars_text
 655                                 - MIN(len_utf8 - editpos, 2));
 656             pm->leftpos = editpos - pm->curpos;
 657             utf8 = text + utf8seek(text, pm->leftpos);
 658
 659             text_w = pm->font_w;
 660
 661             while (*utf8 && i < pm->max_chars_text)
 662             {
 663                 outline[j++] = *utf8++;
 664
 665                 if ((*utf8 & MASK) != COMP)
 666                 {
 667                     int w;
 668                     outline[j] = 0;
 669                     j=0;
 670                     i++;
 671                     sc->getstringsize(outline, &w, NULL);
 672                     sc->putsxy(i*text_w + (text_w-w)/2, pm->main_y, outline);
 673                 }
 674             }
 675
 676             if (pm->leftpos > 0)
 677             {
 678                 /* Draw nicer bitmap arrow if room, else settle for "<". */
 679                 if (text_w >= 6 && pm->font_h >= 8)
 680                 {
 681                     screen_put_iconxy(sc, (text_w - 6) / 2,
 682                                       pm->main_y + (pm->font_h - 8) / 2 ,
 683                                       Icon_Reverse_Cursor);
 684                 }
 685                 else
 686                 {
 687                     int w;
 688                     sc->getstringsize("<", &w, NULL);
 689                     sc->putsxy(text_w - w, pm->main_y, "<");
 690                 }
 691             }
 692
 693             if (len_utf8 - pm->leftpos > pm->max_chars_text)
 694             {
 695                 /* Draw nicer bitmap arrow if room, else settle for ">". */
 696                 if (text_w >= 6 && pm->font_h >= 8)
 697                 {
 698                     screen_put_iconxy(sc, sc->getwidth() - text_w +
 699                                       (text_w - 6) / 2,
 700                                       pm->main_y + (pm->font_h - 8) / 2,
 701                                       Icon_Cursor);
 702                 }
 703                 else
 704                 {
 705                     sc->putsxy(sc->getwidth() - text_w, pm->main_y, ">");
 706                 }
 707             }
 708
 709             /* cursor */
 710             i = (pm->curpos + 1) * text_w;
 711
 712             if (cur_blink)
 713                 sc->vline(i, pm->main_y, pm->main_y + pm->font_h - 1);
 714
 715             if (pm->hangul) /* draw underbar */
 716                 sc->hline(pm->curpos*text_w, (pm->curpos+1)*text_w,
 717                           pm->main_y + pm->font_h - 1);
 718         }
 719
 720         cur_blink = !cur_blink;
 721
 722 #ifdef HAVE_BUTTONBAR
 723         /* draw the button bar */
 724         gui_buttonbar_set(&buttonbar, "Shift", "OK", "Del");
 725         gui_buttonbar_draw(&buttonbar);
 726 #endif
 727
 728         FOR_NB_SCREENS(l)
 729         {
 730             struct keyboard_parameters *pm = &param[l];
 731             struct screen *sc = &screens[l];
 732
 733             sc->set_drawmode(DRMODE_COMPLEMENT);
 734 #ifdef KBD_MODES
 735             if (pm->line_edit)
 736                 sc->fillrect(0, pm->main_y - pm->keyboard_margin + 2,
 737                              sc->getwidth(), pm->font_h + 2);
 738             else /* highlight the key that has focus */
 739 #endif
 740                 sc->fillrect(pm->font_w*pm->x,
 741                              statusbar_size + pm->font_h*pm->y,
 742                              pm->font_w, pm->font_h);
 743             sc->set_drawmode(DRMODE_SOLID);
 744         }
 745
 746         FOR_NB_SCREENS(l)
 747             screens[l].update();
 748
 749         button = get_action(CONTEXT_KEYBOARD, HZ/2);
 750 #if NB_SCREENS > 1
 751         button_screen = (get_action_statuscode(NULL) & ACTION_REMOTE) ? 1 : 0;
 752 #endif
 753         pm = &param[button_screen];
 754         sc = &screens[button_screen];
 755
 756 #if defined KBD_MORSE_INPUT && !defined KBD_MODES
 757         if (morse_mode)
 758         {
 759             /* Remap some buttons for morse mode. */
 760             if (button == ACTION_KBD_LEFT)
 761                 button = ACTION_KBD_CURSOR_LEFT;
 762             if (button == ACTION_KBD_RIGHT)
 763                 button = ACTION_KBD_CURSOR_RIGHT;
 764         }
 765 #endif
 766
 767         switch ( button )
 768         {
 769             case ACTION_KBD_ABORT:
 770                 FOR_NB_SCREENS(l)
 771                     screens[l].setfont(FONT_UI);
 772
 773 #ifdef HAVE_BUTTONBAR
 774                 global_settings.buttonbar=buttonbar_config;
 775 #endif
 776                 viewportmanager_set_statusbar(oldbars);
 777                 return -1;
 778                 break;
 779
 780             case ACTION_KBD_PAGE_FLIP:
 781             {
 782                 int k;
 783 #ifdef KBD_MORSE_INPUT
 784                 if (morse_mode)
 785                     break;
 786 #endif
 787                 if (++pm->page >= pm->pages)
 788                      pm->page = 0;
 789
 790                 k = get_param_k(pm);
 791                 kbd_spellchar(pm->kbd_buf[k]);
 792                 break;
 793                 }
 794
 795 #ifdef KBD_MORSE_INPUT
 796             case ACTION_KBD_MORSE_INPUT:
 797                 morse_mode = !morse_mode;
 798
 799                 FOR_NB_SCREENS(l)
 800                 {
 801                     struct keyboard_parameters *pm = &param[l];
 802                     struct screen *sc = &screens[l];
 803
 804                     pm->x = pm->y = pm->page = 0;
 805
 806                     if (morse_mode)
 807                     {
 808                         pm->old_main_y = pm->main_y;
 809                         pm->main_y = sc->getheight() - pm->font_h;
 810                     }
 811                     else
 812                     {
 813                         pm->main_y = pm->old_main_y;
 814                     }
 815                 }
 816                 /* FIXME: We should talk something like Morse mode.. */
 817                 break;
 818 #endif /* KBD_MORSE_INPUT */
 819
 820             case ACTION_KBD_RIGHT:
 821 #ifdef KBD_MODES
 822 #ifdef KBD_MORSE_INPUT
 823                 /* allow cursor change in non line edit morse mode */
 824                 if (pm->line_edit || morse_mode)
 825 #else
 826                 /* right doubles as cursor_right in line_edit */
 827                 if (pm->line_edit)
 828 #endif
 829                 {
 830                     pm->hangul = false;
 831
 832                     if (editpos < len_utf8)
 833                     {
 834                         int c = utf8seek(text, ++editpos);
 835                         kbd_spellchar(text[c]);
 836                     }
 837 #if CONFIG_CODEC == SWCODEC
 838                     else if (global_settings.talk_menu)
 839                         pcmbuf_beep(1000, 150, 1500);
 840 #endif
 841                 }
 842                 else
 843 #endif /* KBD_MODES */
 844                 {
 845                     int k;
 846 #ifdef KBD_MORSE_INPUT
 847                     if (morse_mode)
 848                         break;
 849 #endif
 850                     if (++pm->x >= pm->max_chars)
 851                     {
 852 #ifndef KBD_PAGE_FLIP
 853                         /* no dedicated flip key - flip page on wrap */
 854                         if (++pm->page >= pm->pages)
 855                             pm->page = 0;
 856 #endif
 857                         pm->x = 0;
 858                     }
 859
 860                     k = get_param_k(pm);
 861                     kbd_spellchar(pm->kbd_buf[k]);
 862                 }
 863                 break;
 864
 865             case ACTION_KBD_LEFT:
 866 #ifdef KBD_MODES
 867 #ifdef KBD_MORSE_INPUT
 868                 /* allow cursor change in non line edit morse mode */
 869                 if (pm->line_edit || morse_mode)
 870 #else
 871                 /* left doubles as cursor_left in line_edit */
 872                 if (pm->line_edit)
 873 #endif
 874                 {
 875                     pm->hangul = false;
 876
 877                     if (editpos > 0)
 878                     {
 879                         int c = utf8seek(text, --editpos);
 880                         kbd_spellchar(text[c]);
 881                     }
 882 #if CONFIG_CODEC == SWCODEC
 883                     else if (global_settings.talk_menu)
 884                         pcmbuf_beep(1000, 150, 1500);
 885 #endif
 886                 }
 887                 else
 888 #endif /* KBD_MODES */
 889                 {
 890                     int k;
 891 #ifdef KBD_MORSE_INPUT
 892                     if (morse_mode)
 893                         break;
 894 #endif
 895                     if (--pm->x < 0)
 896                     {
 897 #ifndef KBD_PAGE_FLIP
 898                         /* no dedicated flip key - flip page on wrap */
 899                         if (--pm->page < 0)
 900                             pm->page = pm->pages - 1;
 901 #endif
 902                         pm->x = pm->max_chars - 1;
 903                     }
 904
 905                     k = get_param_k(pm);
 906                     kbd_spellchar(pm->kbd_buf[k]);
 907                 }
 908                 break;
 909
 910             case ACTION_KBD_DOWN:
 911 #ifdef KBD_MORSE_INPUT
 912 #ifdef KBD_MODES
 913                 if (morse_mode)
 914                 {
 915                     pm->line_edit = !pm->line_edit;
 916                     if(pm->line_edit)
 917                         say_edit();
 918                 }
 919                 else
 920 #else
 921                 if (morse_mode)
 922                     break;
 923 #endif
 924 #endif /* KBD_MORSE_INPUT */
 925                 {
 926 #ifdef KBD_MODES
 927                     if (pm->line_edit)
 928                     {
 929                         pm->y = 0;
 930                         pm->line_edit = false;
 931                     }
 932                     else
 933 #endif
 934                     if (++pm->y >= pm->lines)
 935 #ifdef KBD_MODES
 936                     {
 937                         pm->line_edit = true;
 938                         say_edit();
 939                     }
 940 #else
 941                         pm->y = 0;
 942 #endif
 943                 }
 944 #ifdef KBD_MODES
 945                 if (!pm->line_edit)
 946 #endif
 947                 {
 948                     int k = get_param_k(pm);
 949                     kbd_spellchar(pm->kbd_buf[k]);
 950                 }
 951                 break;
 952
 953             case ACTION_KBD_UP:
 954 #ifdef KBD_MORSE_INPUT
 955 #ifdef KBD_MODES
 956                 if (morse_mode)
 957                 {
 958                     pm->line_edit = !pm->line_edit;
 959                     if(pm->line_edit)
 960                         say_edit();
 961                 }
 962                 else
 963 #else
 964                 if (morse_mode)
 965                     break;
 966 #endif
 967 #endif /* KBD_MORSE_INPUT */
 968                 {
 969 #ifdef KBD_MODES
 970                     if (pm->line_edit)
 971                     {
 972                         pm->y = pm->lines - 1;
 973                         pm->line_edit = false;
 974                     }
 975                     else
 976 #endif
 977                     if (--pm->y < 0)
 978 #ifdef KBD_MODES
 979                     {
 980                         pm->line_edit = true;
 981                         say_edit();
 982                     }
 983 #else
 984                         pm->y = pm->lines - 1;
 985 #endif
 986                 }
 987 #ifdef KBD_MODES
 988                 if (!pm->line_edit)
 989 #endif
 990                 {
 991                     int k = get_param_k(pm);
 992                     kbd_spellchar(pm->kbd_buf[k]);
 993                 }
 994                 break;
 995
 996             case ACTION_KBD_DONE:
 997                 /* accepts what was entered and continues */
 998                 done = true;
 999                 break;
1000
1001 #ifdef KBD_MORSE_INPUT
1002             case ACTION_KBD_MORSE_SELECT:
1003                 if (morse_mode && morse_reading)
1004                 {
1005                     morse_code <<= 1;
1006                     if ((current_tick - morse_tick) > HZ/5)
1007                         morse_code |= 0x01;
1008                 }
1009
1010                 break;
1011 #endif /* KBD_MORSE_INPUT */
1012
1013             case ACTION_KBD_SELECT:
1014             case ACTION_KBD_SELECT_REM:
1015 #ifdef KBD_MORSE_INPUT
1016 #ifdef KBD_MODES
1017                 if (morse_mode && !pm->line_edit)
1018 #else
1019                 if (morse_mode)
1020 #endif
1021                 {
1022                     morse_tick = current_tick;
1023
1024                     if (!morse_reading)
1025                     {
1026                         morse_reading = true;
1027                         morse_code = 1;
1028                     }
1029                     break;
1030                 }
1031 #endif /* KBD_MORSE_INPUT */
1032
1033                 /* inserts the selected char */
1034 #ifdef KBD_MODES
1035                 if (pm->line_edit)
1036                 { /* select doubles as backspace in line_edit */
1037                     if (pm->hangul)
1038                     {
1039                         if (pm->htail)
1040                             pm->htail = 0;
1041                         else if (pm->hvowel)
1042                             pm->hvowel = 0;
1043                         else
1044                             pm->hangul = false;
1045                     }
1046
1047                     kbd_delchar(text, &editpos);
1048
1049                     if (pm->hangul)
1050                     {
1051                         if (pm->hvowel)
1052                             ch = hangul_join(pm->hlead, pm->hvowel, pm->htail);
1053                         else
1054                             ch = pm->hlead;
1055                         kbd_inschar(text, buflen, &editpos, ch);
1056                     }
1057                 }
1058                 else
1059 #endif /* KBD_MODES */
1060                 {
1061                     /* find input char */
1062                     int k = get_param_k(pm);
1063                     ch = (k < pm->nchars) ? pm->kbd_buf[k] : ' ';
1064
1065                     /* check for hangul input */
1066                     if (ch >= 0x3131 && ch <= 0x3163)
1067                     {
1068                         unsigned short tmp;
1069
1070                         if (!pm->hangul)
1071                         {
1072                             pm->hlead = pm->hvowel = pm->htail = 0;
1073                             pm->hangul = true;
1074                         }
1075
1076                         if (!pm->hvowel)
1077                         {
1078                             pm->hvowel = ch;
1079                         }
1080                         else if (!pm->htail)
1081                         {
1082                             pm->htail = ch;
1083                         }
1084                         else
1085                         { /* previous hangul complete */
1086                             /* check whether tail is actually lead of next char */
1087                             tmp = hangul_join(pm->htail, ch, 0);
1088
1089                             if (tmp != 0xfffd)
1090                             {
1091                                 tmp = hangul_join(pm->hlead, pm->hvowel, 0);
1092                                 kbd_delchar(text, &editpos);
1093                                 kbd_inschar(text, buflen, &editpos, tmp);
1094                                 /* insert dummy char */
1095                                 kbd_inschar(text, buflen, &editpos, ' ');
1096                                 pm->hlead = pm->htail;
1097                                 pm->hvowel = ch;
1098                                 pm->htail = 0;
1099                             }
1100                             else
1101                             {
1102                                 pm->hvowel = pm->htail = 0;
1103                                 pm->hlead = ch;
1104                             }
1105                         }
1106
1107                         /* combine into hangul */
1108                         tmp = hangul_join(pm->hlead, pm->hvowel, pm->htail);
1109
1110                         if (tmp != 0xfffd)
1111                         {
1112                             kbd_delchar(text, &editpos);
1113                             ch = tmp;
1114                         }
1115                         else
1116                         {
1117                             pm->hvowel = pm->htail = 0;
1118                             pm->hlead = ch;
1119                         }
1120                     }
1121                     else
1122                     {
1123                         pm->hangul = false;
1124                     }
1125
1126                     /* insert char */
1127                     kbd_inschar(text, buflen, &editpos, ch);
1128                 }
1129
1130                 if (global_settings.talk_menu) /* voice UI? */
1131                     talk_spell(text, false);
1132
1133                 /* speak revised text */
1134                 break;
1135
1136 #if !defined (KBD_MODES) || defined (KBD_CURSOR_KEYS)
1137             case ACTION_KBD_BACKSPACE:
1138                 if (pm->hangul)
1139                 {
1140                     if (pm->htail)
1141                         pm->htail = 0;
1142                     else if (pm->hvowel)
1143                         pm->hvowel = 0;
1144                     else
1145                         pm->hangul = false;
1146                 }
1147
1148                 kbd_delchar(text, &editpos);
1149
1150                 if (pm->hangul)
1151                 {
1152                     if (pm->hvowel)
1153                         ch = hangul_join(pm->hlead, pm->hvowel, pm->htail);
1154                     else
1155                         ch = pm->hlead;
1156                     kbd_inschar(text, buflen, &editpos, ch);
1157                 }
1158
1159                 if (global_settings.talk_menu) /* voice UI? */
1160                     talk_spell(text, false);   /* speak revised text */
1161                 break;
1162
1163             case ACTION_KBD_CURSOR_RIGHT:
1164                 pm->hangul = false;
1165
1166                 if (editpos < len_utf8)
1167                 {
1168                     int c = utf8seek(text, ++editpos);
1169                     kbd_spellchar(text[c]);
1170                 }
1171 #if CONFIG_CODEC == SWCODEC
1172                 else if (global_settings.talk_menu)
1173                     pcmbuf_beep(1000, 150, 1500);
1174 #endif
1175                 break;
1176
1177             case ACTION_KBD_CURSOR_LEFT:
1178                 pm->hangul = false;
1179
1180                 if (editpos > 0)
1181                 {
1182                     int c = utf8seek(text, --editpos);
1183                     kbd_spellchar(text[c]);
1184                 }
1185 #if CONFIG_CODEC == SWCODEC
1186                 else if (global_settings.talk_menu)
1187                     pcmbuf_beep(1000, 150, 1500);
1188 #endif
1189                 break;
1190 #endif /* !defined (KBD_MODES) || defined (KBD_CURSOR_KEYS) */
1191
1192             case BUTTON_NONE:
1193 #ifdef KBD_MORSE_INPUT
1194                 if (morse_reading)
1195                 {
1196                     int j;
1197                     logf("Morse: 0x%02x", morse_code);
1198                     morse_reading = false;
1199
1200                     for (j = 0; morse_alphabets[j] != '\0'; j++)
1201                     {
1202                         if (morse_codes[j] == morse_code)
1203                             break ;
1204                     }
1205
1206                     if (morse_alphabets[j] == '\0')
1207                     {
1208                         logf("Morse code not found");
1209                         break ;
1210                     }
1211
1212                     /* turn off hangul input */
1213                     FOR_NB_SCREENS(l)
1214                         param[l].hangul = false;
1215                     kbd_inschar(text, buflen, &editpos, morse_alphabets[j]);
1216
1217                     if (global_settings.talk_menu) /* voice UI? */
1218                         talk_spell(text, false);   /* speak revised text */
1219                 }
1220 #endif /* KBD_MORSE_INPUT */
1221                 break;
1222
1223             default:
1224                 if (default_event_handler(button) == SYS_USB_CONNECTED)
1225                 {
1226                     FOR_NB_SCREENS(l)
1227                         screens[l].setfont(FONT_SYSFIXED);
1228                 }
1229                 break;
1230
1231         } /* end switch */
1232
1233         if (button != BUTTON_NONE)
1234         {
1235             cur_blink = true;
1236         }
1237     }
1238
1239 #ifdef HAVE_BUTTONBAR
1240     global_settings.buttonbar = buttonbar_config;
1241 #endif
1242
1243     FOR_NB_SCREENS(l)
1244         screens[l].setfont(FONT_UI);
1245     viewportmanager_set_statusbar(oldbars);
1246
1247     return 0;
1248 }