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rockbox/apps/player/keyboard.c
Jens Arnold 28108ef6d1 Code cleanup. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8182 a1c6a512-1295-4272-9138-f99709370657
2005-12-07 07:15:16 +00:00

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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 "lcd-player-charset.h"
#include "settings.h"
#include "statusbar.h"
#include "talk.h"
#include "misc.h"
#include "rbunicode.h"
#define KEYBOARD_PAGES 3
extern unsigned short *lcd_ascii;
static unsigned char* kbd_setupkeys(int page, int* len)
{
static unsigned char lines[128];
unsigned ch;
int i = 0;
switch (page)
{
case 0: /* Capitals */
for (ch = 'A'; ch <= 'Z'; ch++)
lines[i++] = ch;
for (ch = 0xc0; ch <= 0xdd; ch++)
if (lcd_ascii[ch] != NOCHAR_NEW && lcd_ascii[ch] != NOCHAR_OLD)
lines[i++] = ch;
break;
case 1: /* Small */
for (ch = 'a'; ch <= 'z'; ch++)
lines[i++] = ch;
for (ch = 0xdf; ch <= 0xff; ch++)
if (lcd_ascii[ch] != NOCHAR_NEW && lcd_ascii[ch] != NOCHAR_OLD)
lines[i++] = ch;
break;
case 2: /* Others */
for (ch = ' '; ch <= '@'; ch++)
lines[i++] = ch;
break;
}
lines[i] = 0;
*len = i;
return lines;
}
/* Delimiters for highlighting the character selected for insertion */
#define KEYBOARD_INSERT_LEFT 0x81
#define KEYBOARD_INSERT_RIGHT 0x82
#define KEYBOARD_CURSOR 0x7f
#define KEYBOARD_ARROW 0x92
/* helper function to spell a char if voice UI is enabled */
static void kbd_spellchar(char c)
{
static char spell_char[2] = "\0\0"; /* store char to pass to talk_spell */
if (global_settings.talk_menu) /* voice UI? */
{
spell_char[0] = c;
talk_spell(spell_char, false);
}
}
int kbd_input(char* text, int buflen)
{
bool done = false;
bool redraw = true;
bool line_edit = false;
int page = 0, x = 0;
int linelen;
int len, len_utf8, i, j;
int editpos, curpos, leftpos;
unsigned char *line = kbd_setupkeys(page, &linelen);
unsigned char temptext[36];
unsigned char tmp;
unsigned char *utf8;
int button, lastbutton = 0;
editpos = utf8length(text);
if (global_settings.talk_menu) /* voice UI? */
talk_spell(text, true); /* spell initial text */
while (!done)
{
len = strlen(text);
len_utf8 = utf8length(text);
if (redraw)
{
if (line_edit)
{
lcd_putc(0, 0, ' ');
lcd_putc(0, 1, KEYBOARD_ARROW);
}
else
{
lcd_putc(0, 0, KEYBOARD_ARROW);
lcd_putc(0, 1, ' ');
}
/* Draw insert chars */
utf8 = temptext;
tmp = KEYBOARD_INSERT_LEFT;
utf8 = iso_decode(&tmp, utf8, 0, 1);
utf8 = iso_decode(&line[x], utf8, 0, 1);
tmp = KEYBOARD_INSERT_RIGHT;
utf8 = iso_decode(&tmp, utf8, 0, 1);
for (i = 1; i < 8; i++)
{
utf8 = iso_decode(&line[(x+i)%linelen], utf8, 0, 1);
}
*utf8 = 0;
lcd_puts(1, 0, temptext);
/* write out the text */
curpos = MIN(MIN(editpos, 10 - MIN(len_utf8 - editpos, 3)), 9);
leftpos = editpos - curpos;
if (!leftpos) {
utf8 = text + utf8seek(text, leftpos);
i = 0;
j = 0;
} else {
temptext[0] = '<';
i = 1;
j = 1;
utf8 = text + utf8seek(text, leftpos+1);
}
while (*utf8 && i < 10) {
temptext[j++] = *utf8++;
if ((*utf8 & MASK) != COMP)
i++;
}
temptext[j] = 0;
if (len_utf8 - leftpos > 10) {
utf8 = temptext + utf8seek(temptext, 9);
*utf8++ = '>';
*utf8 = 0;
}
lcd_remove_cursor();
lcd_puts(1, 1, temptext);
lcd_put_cursor(curpos + 1, 1, KEYBOARD_CURSOR);
gui_syncstatusbar_draw(&statusbars, true);
}
/* The default action is to redraw */
redraw = true;
button = button_get_w_tmo(HZ/2);
switch (button)
{
case BUTTON_STOP: /* abort */
return -1;
break;
case BUTTON_MENU: /* page flip */
if (++page == KEYBOARD_PAGES)
page = 0;
line = kbd_setupkeys(page, &linelen);
if (x > linelen - 1)
x = linelen - 1;
kbd_spellchar(line[x]);
break;
case BUTTON_ON: /* toggle mode */
line_edit = !line_edit;
if (!line_edit)
kbd_spellchar(line[x]);
break;
case BUTTON_RIGHT:
case BUTTON_RIGHT | BUTTON_REPEAT:
if (line_edit)
{
if (editpos < len_utf8)
{
editpos++;
int c = utf8seek(text, editpos);
kbd_spellchar(text[c]);
}
}
else
{
if (++x >= linelen)
x = 0;
kbd_spellchar(line[x]);
}
break;
case BUTTON_LEFT:
case BUTTON_LEFT | BUTTON_REPEAT:
if (line_edit)
{
if (editpos)
{
editpos--;
int c = utf8seek(text, editpos);
kbd_spellchar(text[c]);
}
}
else
{
if (--x < 0)
x = linelen - 1;
kbd_spellchar(line[x]);
}
break;
case BUTTON_PLAY | BUTTON_REPEAT:
/* accepts what was entered and continues */
done = true;
break;
case BUTTON_PLAY | BUTTON_REL:
if (lastbutton != BUTTON_PLAY)
break;
if (line_edit) /* backspace in line_edit */
{
if (editpos > 0)
{
utf8 = text + utf8seek(text, editpos);
i = 0;
do {
i++;
utf8--;
} while ((*utf8 & MASK) == COMP);
while (utf8[i]) {
*utf8 = utf8[i];
utf8++;
}
*utf8 = 0;
editpos--;
}
}
else /* inserts the selected char */
{
utf8 = iso_decode((unsigned char*)&line[x], temptext, 0, 1);
*utf8 = 0;
j = strlen(temptext);
if (len + j < buflen)
{
int k = len_utf8;
for (i = len+j; k >= editpos; i--) {
text[i] = text[i-j];
if ((text[i] & MASK) != COMP)
k--;
}
while (j--)
text[i--] = temptext[j];
editpos++;
}
}
if (global_settings.talk_menu) /* voice UI? */
talk_spell(text, false); /* speak revised text */
break;
case BUTTON_NONE:
gui_syncstatusbar_draw(&statusbars, false);
redraw = false;
break;
default:
default_event_handler(button);
break;
}
if (button != BUTTON_NONE)
lastbutton = button;
}
return 0;
}
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