rockbox/apps/recorder/keyboard.c

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Björn Stenberg
*
* 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 "lcd.h"
#include "button.h"
#include "kernel.h"
#include "system.h"
#include "version.h"
#include "debug_menu.h"
#include "sprintf.h"
#include <string.h>
#include "font.h"
#include "screens.h"
#include "statusbar.h"
#include "talk.h"
#include "settings.h"
#include "misc.h"
#include "rbunicode.h"
#include "buttonbar.h"
#include "logf.h"
#include "icons.h"
#include "file.h"
#include "hangul.h"
#ifndef O_BINARY
#define O_BINARY 0
#endif
#if CONFIG_KEYPAD == RECORDER_PAD
#define BUTTONBAR_HEIGHT 8
#else
#define BUTTONBAR_HEIGHT 0
#endif
#if (LCD_WIDTH >= 160) && (LCD_HEIGHT >= 96)
#define DEFAULT_LINES 8
#else
#define DEFAULT_LINES 4
#endif
#define DEFAULT_MARGIN 6
#define KBD_BUF_SIZE 500
#if (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
(CONFIG_KEYPAD == IRIVER_H300_PAD)
#define KBD_CURSOR_RIGHT (BUTTON_ON | BUTTON_RIGHT)
#define KBD_CURSOR_LEFT (BUTTON_ON | BUTTON_LEFT)
#define KBD_SELECT BUTTON_SELECT
#define KBD_PAGE_FLIP BUTTON_MODE /* unused */
#define KBD_DONE_PRE BUTTON_ON
#define KBD_DONE (BUTTON_ON | BUTTON_REL)
#define KBD_ABORT BUTTON_OFF
#define KBD_BACKSPACE BUTTON_REC
#define KBD_LEFT BUTTON_LEFT
#define KBD_RIGHT BUTTON_RIGHT
#define KBD_UP BUTTON_UP
#define KBD_DOWN BUTTON_DOWN
#define KBD_MORSE_INPUT (BUTTON_ON | BUTTON_MODE)
#elif CONFIG_KEYPAD == RECORDER_PAD
#define KBD_CURSOR_RIGHT (BUTTON_ON | BUTTON_RIGHT)
#define KBD_CURSOR_LEFT (BUTTON_ON | BUTTON_LEFT)
#define KBD_SELECT BUTTON_PLAY
#define KBD_PAGE_FLIP BUTTON_F1
#define KBD_DONE BUTTON_F2
#define KBD_ABORT BUTTON_OFF
#define KBD_BACKSPACE BUTTON_F3
#define KBD_LEFT BUTTON_LEFT
#define KBD_RIGHT BUTTON_RIGHT
#define KBD_UP BUTTON_UP
#define KBD_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == ONDIO_PAD /* restricted Ondio keypad */
#define KBD_MODES /* Ondio uses 2 modes, picker and line edit */
#define KBD_SELECT (BUTTON_MENU | BUTTON_REL) /* backspace in line edit */
#define KBD_SELECT_PRE BUTTON_MENU
#define KBD_DONE (BUTTON_MENU | BUTTON_REPEAT)
#define KBD_ABORT BUTTON_OFF
#define KBD_LEFT BUTTON_LEFT
#define KBD_RIGHT BUTTON_RIGHT
#define KBD_UP BUTTON_UP
#define KBD_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == GMINI100_PAD
#define KBD_CURSOR_RIGHT (BUTTON_MENU | BUTTON_RIGHT)
#define KBD_CURSOR_LEFT (BUTTON_MENU | BUTTON_LEFT)
#define KBD_SELECT (BUTTON_PLAY | BUTTON_REL)
#define KBD_SELECT_PRE BUTTON_PLAY
#define KBD_PAGE_FLIP BUTTON_ON
#define KBD_DONE (BUTTON_PLAY | BUTTON_REPEAT)
#define KBD_ABORT BUTTON_OFF
#define KBD_BACKSPACE (BUTTON_MENU | BUTTON_PLAY)
#define KBD_LEFT BUTTON_LEFT
#define KBD_RIGHT BUTTON_RIGHT
#define KBD_UP BUTTON_UP
#define KBD_DOWN BUTTON_DOWN
#elif (CONFIG_KEYPAD == IPOD_3G_PAD) || (CONFIG_KEYPAD == IPOD_4G_PAD)
#define KBD_MODES /* iPod uses 2 modes, picker and line edit */
#define KBD_SELECT (BUTTON_SELECT | BUTTON_REL) /* backspace in line edit */
#define KBD_SELECT_PRE BUTTON_SELECT
#define KBD_DONE (BUTTON_SELECT | BUTTON_REPEAT)
#define KBD_ABORT BUTTON_MENU
#define KBD_LEFT BUTTON_LEFT
#define KBD_RIGHT BUTTON_RIGHT
#define KBD_UP BUTTON_SCROLL_BACK
#define KBD_DOWN BUTTON_SCROLL_FWD
#elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
/* TODO: Check keyboard mappings */
#define KBD_MODES /* iFP7xx uses 2 modes, picker and line edit */
#define KBD_SELECT (BUTTON_SELECT | BUTTON_REL) /* backspace in line edit */
#define KBD_SELECT_PRE BUTTON_SELECT
#define KBD_DONE BUTTON_MODE
#define KBD_ABORT BUTTON_PLAY
#define KBD_LEFT BUTTON_LEFT
#define KBD_RIGHT BUTTON_RIGHT
#define KBD_UP BUTTON_UP
#define KBD_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == IAUDIO_X5_PAD
/* TODO: Check keyboard mappings */
#define KBD_MODES /* iAudio X5 uses 2 modes, picker and line edit */
#define KBD_SELECT (BUTTON_SELECT | BUTTON_REL) /* backspace in line edit */
#define KBD_SELECT_PRE BUTTON_SELECT
#define KBD_DONE BUTTON_PLAY
#define KBD_ABORT BUTTON_REC
#define KBD_LEFT BUTTON_LEFT
#define KBD_RIGHT BUTTON_RIGHT
#define KBD_UP BUTTON_UP
#define KBD_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == GIGABEAT_PAD
/* TODO: Check keyboard mappings */
#define KBD_MODES /* Gigabeat uses 2 modes, picker and line edit */
#define KBD_SELECT (BUTTON_MENU | BUTTON_REL) /* backspace in line edit */
#define KBD_SELECT_PRE BUTTON_MENU
#define KBD_DONE BUTTON_POWER
#define KBD_ABORT BUTTON_A
#define KBD_LEFT BUTTON_LEFT
#define KBD_RIGHT BUTTON_RIGHT
#define KBD_UP BUTTON_UP
#define KBD_DOWN BUTTON_DOWN
#endif
#if (LCD_WIDTH >= 160) && (LCD_HEIGHT >= 96)
static const unsigned char * default_kbd =
"ABCDEFG abcdefg !?\" @#$%+'\n"
"HIJKLMN hijklmn 789 &_()-`\n"
"OPQRSTU opqrstu 456 §|{}/<\n"
"VWXYZ., vwxyz.,0123 ~=[]*>\n"
"ÀÃ<EFBFBD>ÃÃÄÅÆ ÃŒÃ<C592>ÃŽÃ<C5BD> ÈÉÊË ¢£¤¥¦§©®\n"
"àáâãäåæ ìíîï èéêë «»°ºª¹²³\n"
"ÓÒÔÕÖØ ÇÃ<E280A1>ÞÃ<C5BE>ß ÙÚÛÜ ¯±×÷¡¿µ·\n"
"òóôõöø çðþýÿ ùúûü ¼½¾¬¶¨";
#else
static const unsigned char * default_kbd =
"ABCDEFG !?\" @#$%+'\n"
"HIJKLMN 789 &_()-`\n"
"OPQRSTU 456 §|{}/<\n"
"VWXYZ.,0123 ~=[]*>\n"
"abcdefg ¢£¤¥¦§©®¬\n"
"hijklmn «»°ºª¹²³¶\n"
"opqrstu ¯±×÷¡¿µ·¨\n"
"vwxyz., ¼½¾ \n"
"ÀÃ<EFBFBD>ÃÃÄÅÆ ÃŒÃ<C592>ÃŽÃ<C5BD> ÈÉÊË\n"
"àáâãäåæ ìíîï èéêë\n"
"ÓÒÔÕÖØ ÇÃ<E280A1>ÞÃ<C5BE>ß ÙÚÛÜ\n"
"òóôõöø çðþýÿ ùúûü";
#endif
static unsigned short kbd_buf[KBD_BUF_SIZE];
static bool kbd_loaded = false;
static int nchars = 0;
#ifdef KBD_MORSE_INPUT
/* FIXME: We should put this to a configuration file. */
static const char *morse_alphabets =
"abcdefghijklmnopqrstuvwxyz1234567890,.?-@ ";
static const unsigned char morse_codes[] = {
0x05,0x18,0x1a,0x0c,0x02,0x12,0x0e,0x10,0x04,0x17,0x0d,0x14,0x07,
0x06,0x0f,0x16,0x1d,0x0a,0x08,0x03,0x09,0x11,0x0b,0x19,0x1b,0x1c,
0x2f,0x27,0x23,0x21,0x20,0x30,0x38,0x3c,0x3e,0x3f,
0x73,0x55,0x4c,0x61,0x5a,0x80 };
static bool morse_mode = false;
#endif
/* Loads a custom keyboard into memory
call with NULL to reset keyboard */
int load_kbd(unsigned char* filename)
{
int fd, count;
int i = 0;
unsigned char buf[4];
if (filename == NULL) {
kbd_loaded = false;
return 0;
}
fd = open(filename, O_RDONLY|O_BINARY);
if (fd < 0)
return 1;
while (read(fd, buf, 1) == 1 && i < KBD_BUF_SIZE) {
/* check how many bytes to read */
if (buf[0] < 0x80) {
count = 0;
} else if (buf[0] < 0xe0) {
count = 1;
} else if (buf[0] < 0xf0) {
count = 2;
} else if (buf[0] < 0xf5) {
count = 3;
} else {
/* Invalid size. */
continue;
}
if (read(fd, &buf[1], count) != count) {
close(fd);
kbd_loaded = false;
return 1;
}
utf8decode(buf, &kbd_buf[i]);
if (kbd_buf[i] != 0xFEFF && kbd_buf[i] != '\n' &&
kbd_buf[i] != '\r') /*skip BOM & newlines */
i++;
}
close(fd);
kbd_loaded = true;
nchars = i;
return 0;
}
/* helper function to spell a char if voice UI is enabled */
static void kbd_spellchar(unsigned short c)
{
static char spell_char[2] = "\0\0"; /* store char to pass to talk_spell */
if (global_settings.talk_menu && c < 128) /* voice UI? */
{
spell_char[0] = (char)c;
talk_spell(spell_char, false);
}
}
void kbd_inschar(unsigned char* text, int buflen, int* editpos, unsigned short ch)
{
int i, j, k, len;
unsigned char tmp[4];
unsigned char* utf8;
len = strlen(text);
k = utf8length(text);
utf8 = utf8encode(ch, tmp);
j = (long)utf8 - (long)tmp;
if (len + j < buflen)
{
for (i = len+j; k >= *editpos; i--) {
text[i] = text[i-j];
if ((text[i] & MASK) != COMP)
k--;
}
while (j--)
text[i--] = tmp[j];
(*editpos)++;
}
return;
}
void kbd_delchar(unsigned char* text, int* editpos)
{
int i = 0;
unsigned char* utf8;
if (*editpos > 0)
{
utf8 = text + utf8seek(text, *editpos);
do {
i++;
utf8--;
} while ((*utf8 & MASK) == COMP);
while (utf8[i]) {
*utf8 = utf8[i];
utf8++;
}
*utf8 = 0;
(*editpos)--;
}
return;
}
int kbd_input(char* text, int buflen)
{
bool done = false;
int page = 0;
int font_w = 0, font_h = 0, text_w = 0;
int i = 0, j, k, w;
int x = 0, y = 0;
int main_x, main_y, max_chars, max_chars_text;
int len_utf8, c = 0;
int editpos, curpos, leftpos;
int lines, pages, keyboard_margin;
int curfont;
int statusbar_size = global_settings.statusbar ? STATUSBAR_HEIGHT : 0;
unsigned short ch, tmp, hlead = 0, hvowel = 0, htail = 0;
bool hangul = false;
unsigned char *utf8;
const unsigned char *p;
bool cur_blink = true;
#ifdef KBD_MORSE_INPUT
bool morse_reading = false;
unsigned char morse_code = 0;
int morse_tick = 0, morse_len, old_main_y;
char buf[2];
#endif
#ifdef KBD_MODES
bool line_edit = false;
#endif
char outline[256];
struct font* font;
int button, lastbutton = 0;
#ifdef HAS_BUTTONBAR
struct gui_buttonbar buttonbar;
bool buttonbar_config = global_settings.buttonbar;
global_settings.buttonbar = true;
gui_buttonbar_init(&buttonbar);
gui_buttonbar_set_display(&buttonbar, &(screens[SCREEN_MAIN]) );
#endif
if (!kbd_loaded) {
curfont = FONT_SYSFIXED;
p = default_kbd;
while (*p != 0) {
p = utf8decode(p, &kbd_buf[i]);
if (kbd_buf[i] == '\n')
while (i % (LCD_WIDTH/6))
kbd_buf[i++] = ' ';
else
i++;
}
nchars = i;
}
else
curfont = FONT_UI;
font = font_get(curfont);
font_h = font->height;
/* check if FONT_UI fits the screen */
if (2*font_h+3+statusbar_size + BUTTONBAR_HEIGHT > LCD_HEIGHT) {
font = font_get(FONT_SYSFIXED);
font_h = font->height;
curfont = FONT_SYSFIXED;
}
lcd_setfont(curfont);
/* find max width of keyboard glyphs */
for (i=0; i<nchars; i++) {
w = font_get_width(font, kbd_buf[i]);
if (w > font_w)
font_w = w;
}
/* find max width for text string */
utf8 = text;
text_w = font_w;
while (*utf8) {
utf8 = (unsigned char*)utf8decode(utf8, &ch);
w = font_get_width(font, ch);
if (w > text_w)
text_w = w;
}
max_chars_text = LCD_WIDTH / text_w - 2;
/* calculate keyboard grid size */
max_chars = LCD_WIDTH / font_w;
if (!kbd_loaded) {
lines = DEFAULT_LINES;
keyboard_margin = DEFAULT_MARGIN;
} else {
lines = (LCD_HEIGHT - BUTTONBAR_HEIGHT - statusbar_size) / font_h - 1;
keyboard_margin = LCD_HEIGHT - BUTTONBAR_HEIGHT - statusbar_size - (lines+1)*font_h;
if (keyboard_margin < 3) {
lines--;
keyboard_margin += font_h;
}
if (keyboard_margin > 6)
keyboard_margin = 6;
}
pages = (nchars + (lines*max_chars-1))/(lines*max_chars);
if (pages == 1 && kbd_loaded)
lines = (nchars + max_chars - 1) / max_chars;
main_y = font_h*lines + keyboard_margin + statusbar_size;
main_x = 0;
keyboard_margin -= keyboard_margin/2;
#ifdef KBD_MORSE_INPUT
old_main_y = main_y;
if (morse_mode)
main_y = LCD_HEIGHT - font_h;
#endif
editpos = utf8length(text);
if (global_settings.talk_menu) /* voice UI? */
talk_spell(text, true); /* spell initial text */
while(!done)
{
len_utf8 = utf8length(text);
lcd_clear_display();
#ifdef KBD_MORSE_INPUT
if (morse_mode)
{
lcd_setfont(FONT_SYSFIXED); /* Draw morse code screen with sysfont */
w = 6; /* sysfixed font width */
x = 0;
y = statusbar_size;
buf[1] = '\0';
/* Draw morse code table with code descriptions. */
for (i = 0; morse_alphabets[i] != '\0'; i++)
{
buf[0] = morse_alphabets[i];
lcd_putsxy(x, y, buf);
for (j = 0; (morse_codes[i] >> j) > 0x01; j++) ;
morse_len = j;
x += w + 3;
for (j = 0; j < morse_len; j++)
{
if ((morse_codes[i] >> (morse_len-j-1)) & 0x01)
lcd_fillrect(x + j*4, y + 2, 3, 4);
else
lcd_fillrect(x + j*4, y + 3, 1, 2);
}
x += w * 5 - 3;
if (x >= LCD_WIDTH - (w*6))
{
x = 0;
y += 8; /* sysfixed font height */
}
}
}
else
#endif
{
/* draw page */
lcd_setfont(curfont);
k = page*max_chars*lines;
for (i=j=0; j < lines && k < nchars; k++) {
utf8 = utf8encode(kbd_buf[k], outline);
*utf8 = 0;
lcd_getstringsize(outline, &w, NULL);
lcd_putsxy(i*font_w + (font_w-w)/2, j*font_h + statusbar_size, outline);
if (++i == max_chars) {
i = 0;
j++;
}
}
}
/* separator */
lcd_hline(0, LCD_WIDTH - 1, main_y - keyboard_margin);
/* write out the text */
lcd_setfont(curfont);
i=j=0;
curpos = MIN(editpos, max_chars_text - MIN(len_utf8 - editpos, 2));
leftpos = editpos - curpos;
utf8 = text + utf8seek(text, leftpos);
while (*utf8 && i < max_chars_text) {
outline[j++] = *utf8++;
if ((*utf8 & MASK) != COMP) {
outline[j] = 0;
j=0;
i++;
lcd_getstringsize(outline, &w, NULL);
lcd_putsxy(i*text_w + (text_w-w)/2, main_y, outline);
}
}
if (leftpos) {
lcd_getstringsize("<", &w, NULL);
lcd_putsxy(text_w - w, main_y, "<");
}
if (len_utf8 - leftpos > max_chars_text)
lcd_putsxy(LCD_WIDTH - text_w, main_y, ">");
/* cursor */
i = (curpos + 1) * text_w;
if (cur_blink)
lcd_vline(i, main_y, main_y + font_h-1);
cur_blink = !cur_blink;
if (hangul) /* draw underbar */
lcd_hline(curpos*text_w, (curpos+1)*text_w, main_y+font_h-1);
#ifdef HAS_BUTTONBAR
/* draw the button bar */
gui_buttonbar_set(&buttonbar, "Shift", "OK", "Del");
gui_buttonbar_draw(&buttonbar);
#endif
#ifdef KBD_MODES
if (!line_edit)
#endif
{
/* highlight the key that has focus */
lcd_set_drawmode(DRMODE_COMPLEMENT);
lcd_fillrect(font_w * x, statusbar_size + font_h * y, font_w, font_h);
lcd_set_drawmode(DRMODE_SOLID);
}
#ifdef KBD_MODES
else
{
lcd_set_drawmode(DRMODE_COMPLEMENT);
lcd_fillrect(0, main_y - keyboard_margin + 2, LCD_WIDTH, font_h+2);
lcd_set_drawmode(DRMODE_SOLID);
}
#endif
gui_syncstatusbar_draw(&statusbars, true);
lcd_update();
button = button_get_w_tmo(HZ/2);
#ifdef KBD_MORSE_INPUT
if (morse_mode)
{
/* Remap some buttons for morse mode. */
if (button == KBD_LEFT || button == (KBD_LEFT | BUTTON_REPEAT))
button = KBD_CURSOR_LEFT;
if (button == KBD_RIGHT || button == (KBD_RIGHT | BUTTON_REPEAT))
button = KBD_CURSOR_RIGHT;
}
#endif
switch ( button ) {
case KBD_ABORT:
lcd_setfont(FONT_UI);
#ifdef HAS_BUTTONBAR
global_settings.buttonbar=buttonbar_config;
#endif
return -1;
break;
#if defined(KBD_PAGE_FLIP)
case KBD_PAGE_FLIP:
#ifdef KBD_MORSE_INPUT
if (morse_mode)
break;
#endif
if (++page == pages)
page = 0;
k = (page*lines + y)*max_chars + x;
kbd_spellchar(kbd_buf[k]);
break;
#endif
#ifdef KBD_MORSE_INPUT
case KBD_MORSE_INPUT:
morse_mode = !morse_mode;
x = y = page = 0;
if (morse_mode) {
old_main_y = main_y;
main_y = LCD_HEIGHT - font_h;
} else
main_y = old_main_y;
/* FIXME: We should talk something like Morse mode.. */
break;
#endif
case KBD_RIGHT:
case KBD_RIGHT | BUTTON_REPEAT:
#ifdef KBD_MORSE_INPUT
if (morse_mode)
break;
#endif
#ifdef KBD_MODES
if (line_edit) /* right doubles as cursor_right in line_edit */
{
if (hangul)
hangul = false;
if (editpos < len_utf8)
{
editpos++;
c = utf8seek(text, editpos);
kbd_spellchar(text[c]);
}
}
else
#endif
{
if (++x == max_chars) {
x = 0;
#if !defined(KBD_PAGE_FLIP)
/* no dedicated flip key - flip page on wrap */
if (++page == pages)
page = 0;
#endif
}
k = (page*lines + y)*max_chars + x;
kbd_spellchar(kbd_buf[k]);
}
break;
case KBD_LEFT:
case KBD_LEFT | BUTTON_REPEAT:
#ifdef KBD_MORSE_INPUT
if (morse_mode)
break;
#endif
#ifdef KBD_MODES
if (line_edit) /* left doubles as cursor_left in line_edit */
{
if (hangul)
hangul = false;
if (editpos)
{
editpos--;
c = utf8seek(text, editpos);
kbd_spellchar(text[c]);
}
}
else
#endif
{
if (x)
x--;
else
{
#if !defined(KBD_PAGE_FLIP)
/* no dedicated flip key - flip page on wrap */
if (--page < 0)
page = (pages-1);
#endif
x = max_chars - 1;
}
k = (page*lines + y)*max_chars + x;
kbd_spellchar(kbd_buf[k]);
}
break;
case KBD_DOWN:
case KBD_DOWN | BUTTON_REPEAT:
#ifdef KBD_MORSE_INPUT
if (morse_mode)
break;
#endif
#ifdef KBD_MODES
if (line_edit)
{
y = 0;
line_edit = false;
}
else
{
#endif
if (y < lines - 1)
y++;
else
#ifndef KBD_MODES
y=0;
#else
line_edit = true;
}
if (!line_edit)
#endif
{
k = (page*lines + y)*max_chars + x;
kbd_spellchar(kbd_buf[k]);
}
break;
case KBD_UP:
case KBD_UP | BUTTON_REPEAT:
#ifdef KBD_MORSE_INPUT
if (morse_mode)
break;
#endif
#ifdef KBD_MODES
if (line_edit)
{
y = lines - 1;
line_edit = false;
}
else
{
#endif
if (y)
y--;
else
#ifndef KBD_MODES
y = lines - 1;
#else
line_edit = true;
}
if (!line_edit)
#endif
{
k = (page*lines + y)*max_chars + x;
kbd_spellchar(kbd_buf[k]);
}
break;
case KBD_DONE:
/* accepts what was entered and continues */
#ifdef KBD_DONE_PRE
if (lastbutton != KBD_DONE_PRE)
break;
#endif
done = true;
break;
#ifdef KBD_MORSE_INPUT
case KBD_SELECT | BUTTON_REL:
if (morse_mode && morse_reading)
{
morse_code <<= 1;
if ((current_tick - morse_tick) > HZ/5)
morse_code |= 0x01;
}
break;
#endif
case KBD_SELECT:
#ifdef KBD_MORSE_INPUT
if (morse_mode)
{
morse_tick = current_tick;
if (!morse_reading)
{
morse_reading = true;
morse_code = 1;
}
break;
}
#endif
/* inserts the selected char */
#ifdef KBD_SELECT_PRE
if (lastbutton != KBD_SELECT_PRE)
break;
#endif
#ifdef KBD_MODES
if (line_edit) { /* select doubles as backspace in line_edit */
if (hangul) {
if (htail)
htail = 0;
else if (hvowel)
hvowel = 0;
else
hangul = false;
}
kbd_delchar(text, &editpos);
if (hangul) {
if (hvowel)
ch = hangul_join(hlead, hvowel, htail);
else
ch = hlead;
kbd_inschar(text, buflen, &editpos, ch);
}
}
else
#endif
{
/* find input char */
k = (page*lines + y)*max_chars + x;
if (k < nchars)
ch = kbd_buf[k];
else
ch = ' ';
/* check for hangul input */
if (ch >= 0x3131 && ch <= 0x3163) {
if (!hangul) {
hlead=hvowel=htail=0;
hangul = true;
}
if (!hvowel)
hvowel = ch;
else if (!htail)
htail = ch;
else { /* previous hangul complete */
/* check whether tail is actually lead of next char */
if ((tmp = hangul_join(htail, ch, 0)) != 0xfffd) {
tmp = hangul_join(hlead, hvowel, 0);
kbd_delchar(text, &editpos);
kbd_inschar(text, buflen, &editpos, tmp);
/* insert dummy char */
kbd_inschar(text, buflen, &editpos, ' ');
hlead = htail;
hvowel = ch;
htail = 0;
} else {
hvowel=htail=0;
hlead = ch;
}
}
/* combine into hangul */
if ((tmp = hangul_join(hlead, hvowel, htail)) != 0xfffd) {
kbd_delchar(text, &editpos);
ch = tmp;
} else {
hvowel=htail=0;
hlead = ch;
}
} else {
hangul = false;
}
/* insert char */
kbd_inschar(text, buflen, &editpos, ch);
}
if (global_settings.talk_menu) /* voice UI? */
talk_spell(text, false); /* speak revised text */
break;
#ifndef KBD_MODES
case KBD_BACKSPACE:
case KBD_BACKSPACE | BUTTON_REPEAT:
if (hangul) {
if (htail)
htail = 0;
else if (hvowel)
hvowel = 0;
else
hangul = false;
}
kbd_delchar(text, &editpos);
if (hangul) {
if (hvowel)
ch = hangul_join(hlead, hvowel, htail);
else
ch = hlead;
kbd_inschar(text, buflen, &editpos, ch);
}
if (global_settings.talk_menu) /* voice UI? */
talk_spell(text, false); /* speak revised text */
break;
case KBD_CURSOR_RIGHT:
case KBD_CURSOR_RIGHT | BUTTON_REPEAT:
if (hangul)
hangul = false;
if (editpos < len_utf8)
{
editpos++;
c = utf8seek(text, editpos);
kbd_spellchar(text[c]);
}
break;
case KBD_CURSOR_LEFT:
case KBD_CURSOR_LEFT | BUTTON_REPEAT:
if (hangul)
hangul = false;
if (editpos)
{
editpos--;
c = utf8seek(text, editpos);
kbd_spellchar(text[c]);
}
break;
#endif /* !KBD_MODES */
case BUTTON_NONE:
gui_syncstatusbar_draw(&statusbars, false);
#ifdef KBD_MORSE_INPUT
if (morse_reading)
{
logf("Morse: 0x%02x", morse_code);
morse_reading = false;
for (j = 0; morse_alphabets[j] != '\0'; j++)
{
if (morse_codes[j] == morse_code)
break ;
}
if (morse_alphabets[j] == '\0')
{
logf("Morse code not found");
break ;
}
/* turn off hangul input */
if (hangul)
hangul = false;
kbd_inschar(text, buflen, &editpos, morse_alphabets[j]);
if (global_settings.talk_menu) /* voice UI? */
talk_spell(text, false); /* speak revised text */
}
#endif
break;
default:
if(default_event_handler(button) == SYS_USB_CONNECTED)
lcd_setfont(FONT_SYSFIXED);
break;
}
if (button != BUTTON_NONE)
{
lastbutton = button;
cur_blink = true;
}
}
#ifdef HAS_BUTTONBAR
global_settings.buttonbar=buttonbar_config;
#endif
lcd_setfont(FONT_UI);
return 0;
}