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rockbox/apps/recorder/keyboard.c

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Björn Stenberg
*
* 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 "kernel.h"
#include "system.h"
#include "string-extra.h"
#include "font.h"
#include "screens.h"
#include "talk.h"
#include "settings.h"
#include "misc.h"
#include "rbunicode.h"
#include "logf.h"
#include "hangul.h"
#include "action.h"
#include "icon.h"
#include "pcmbuf.h"
#include "lang.h"
#include "keyboard.h"
#include "viewport.h"
#include "file.h"
#include "splash.h"
#ifndef O_BINARY
#define O_BINARY 0
#endif
#define DEFAULT_MARGIN 6
#define KBD_BUF_SIZE 500
#ifdef HAVE_TOUCHSCREEN
#define MIN_GRID_SIZE 16
#define GRID_SIZE(s, x) \
((s) == SCREEN_MAIN && MIN_GRID_SIZE > (x) ? MIN_GRID_SIZE: (x))
#endif
#if (CONFIG_KEYPAD == IRIVER_H100_PAD) \
|| (CONFIG_KEYPAD == IRIVER_H300_PAD) \
|| (CONFIG_KEYPAD == IPOD_1G2G_PAD) \
|| (CONFIG_KEYPAD == IPOD_3G_PAD) \
|| (CONFIG_KEYPAD == IPOD_4G_PAD) \
|| (CONFIG_KEYPAD == IRIVER_H10_PAD) \
|| (CONFIG_KEYPAD == GIGABEAT_PAD) \
|| (CONFIG_KEYPAD == GIGABEAT_S_PAD) \
|| (CONFIG_KEYPAD == MROBE100_PAD) \
|| (CONFIG_KEYPAD == SANSA_E200_PAD) \
|| (CONFIG_KEYPAD == PHILIPS_HDD1630_PAD) \
|| (CONFIG_KEYPAD == PHILIPS_HDD6330_PAD) \
|| (CONFIG_KEYPAD == PHILIPS_SA9200_PAD) \
|| (CONFIG_KEYPAD == PBELL_VIBE500_PAD) \
|| (CONFIG_KEYPAD == SANSA_CONNECT_PAD) \
|| (CONFIG_KEYPAD == SAMSUNG_YH820_PAD) \
|| (CONFIG_KEYPAD == SAMSUNG_YH92X_PAD)
/* certain key combos toggle input mode between keyboard input and Morse input */
#define KBD_TOGGLE_INPUT
#endif
#define CHANGED_PICKER 1
#define CHANGED_CURSOR 2
#define CHANGED_TEXT 3
struct keyboard_parameters
{
unsigned short kbd_buf[KBD_BUF_SIZE];
unsigned short *kbd_buf_ptr;
unsigned short max_line_len;
int default_lines;
int last_k;
int last_i;
int font_w;
int font_h;
int text_w;
int curfont;
int main_y;
#ifdef HAVE_MORSE_INPUT
int old_main_y;
#endif
int max_chars;
int max_chars_text;
int lines;
int pages;
int keyboard_margin;
int curpos;
int leftpos;
int page;
int x;
int y;
bool line_edit;
#ifdef HAVE_TOUCHSCREEN
bool show_buttons;
#endif
};
struct edit_state
{
char* text;
int buflen;
int len_utf8;
int editpos; /* Edit position on all screens */
bool cur_blink; /* Cursor on/off flag */
bool hangul;
unsigned short hlead, hvowel, htail;
#ifdef HAVE_MORSE_INPUT
bool morse_mode;
bool morse_reading;
unsigned char morse_code;
int morse_tick;
#endif
int changed;
};
static struct keyboard_parameters kbd_param[NB_SCREENS];
static bool kbd_loaded = false;
#ifdef HAVE_MORSE_INPUT
/* FIXME: We should put this to a configuration file. */
static const char * const 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 };
#endif
/* Loads a custom keyboard into memory
call with NULL to reset keyboard */
int load_kbd(unsigned char* filename)
{
int fd;
int i, line_len, max_line_len;
unsigned char buf[4];
unsigned short *pbuf;
if (filename == NULL)
{
kbd_loaded = false;
return 0;
}
fd = open_utf8(filename, O_RDONLY|O_BINARY);
if (fd < 0)
return 1;
pbuf = kbd_param[0].kbd_buf;
line_len = 0;
max_line_len = 1;
i = 1;
while (read(fd, buf, 1) == 1 && i < KBD_BUF_SIZE-1)
{
/* check how many bytes to read for this character */
static const unsigned char sizes[4] = { 0x80, 0xe0, 0xf0, 0xf5 };
size_t count;
unsigned short ch;
for (count = 0; count < ARRAYLEN(sizes); count++)
{
if (buf[0] < sizes[count])
break;
}
if (count >= ARRAYLEN(sizes))
continue; /* Invalid size. */
if (read(fd, &buf[1], count) != (ssize_t)count)
{
close(fd);
kbd_loaded = false;
return 1;
}
utf8decode(buf, &ch);
if (ch != 0xFEFF && ch != '\r') /* skip BOM & carriage returns */
{
i++;
if (ch == '\n')
{
if (max_line_len < line_len)
max_line_len = line_len;
*pbuf = line_len;
pbuf += line_len + 1;
line_len = 0;
}
else
pbuf[++line_len] = ch;
}
}
close(fd);
kbd_loaded = true;
if (max_line_len < line_len)
max_line_len = line_len;
if (i == 1 || line_len != 0) /* ignore last empty line */
{
*pbuf = line_len;
pbuf += line_len + 1;
}
*pbuf = 0xFEFF; /* mark end of characters */
i++;
FOR_NB_SCREENS(l)
{
struct keyboard_parameters *pm = &kbd_param[l];
#if NB_SCREENS > 1
if (l > 0)
memcpy(pm->kbd_buf, kbd_param[0].kbd_buf, i*sizeof(unsigned short));
#endif
/* initialize parameters */
pm->x = pm->y = pm->page = 0;
pm->default_lines = 0;
pm->max_line_len = max_line_len;
}
return 0;
}
/* helper function to spell a char */
static void kbd_spellchar(unsigned short c)
{
unsigned char tmp[5];
/* store char to pass to talk_spell */
unsigned char* utf8 = utf8encode(c, tmp);
*utf8 = 0;
if (c == ' ')
talk_id(VOICE_BLANK, false);
else
talk_spell(tmp, false);
}
static void kbd_inschar(struct edit_state *state, unsigned short ch)
{
int i, j, len;
unsigned char tmp[4];
unsigned char* utf8;
len = strlen(state->text);
utf8 = utf8encode(ch, tmp);
j = (intptr_t)utf8 - (intptr_t)tmp;
if (len + j < state->buflen)
{
i = utf8seek(state->text, state->editpos);
utf8 = state->text + i;
memmove(utf8 + j, utf8, len - i + 1);
memcpy(utf8, tmp, j);
state->editpos++;
state->changed = CHANGED_TEXT;
}
}
static void kbd_delchar(struct edit_state *state)
{
int i, j, len;
unsigned char* utf8;
if (state->editpos > 0)
{
state->editpos--;
len = strlen(state->text);
i = utf8seek(state->text, state->editpos);
utf8 = state->text + i;
j = utf8seek(utf8, 1);
memmove(utf8, utf8 + j, len - i - j + 1);
state->changed = CHANGED_TEXT;
}
}
/* Lookup k value based on state of param (pm) */
static unsigned short get_kbd_ch(struct keyboard_parameters *pm, int x, int y)
{
int i = 0, k = pm->page*pm->lines + y, n;
unsigned short *pbuf;
if (k >= pm->last_k)
{
i = pm->last_i;
k -= pm->last_k;
}
for (pbuf = &pm->kbd_buf_ptr[i]; (i = *pbuf) != 0xFEFF; pbuf += i + 1)
{
n = i ? (i + pm->max_chars - 1) / pm->max_chars : 1;
if (k < n) break;
k -= n;
}
if (y == 0 && i != 0xFEFF)
{
pm->last_k = pm->page*pm->lines - k;
pm->last_i = pbuf - pm->kbd_buf_ptr;
}
k = k * pm->max_chars + x;
return (*pbuf != 0xFEFF && k < *pbuf)? pbuf[k+1]: ' ';
}
static void kbd_calc_params(struct keyboard_parameters *pm,
struct screen *sc, struct edit_state *state);
static void kbd_draw_picker(struct keyboard_parameters *pm,
struct screen *sc, struct edit_state *state);
static void kbd_draw_edit_line(struct keyboard_parameters *pm,
struct screen *sc, struct edit_state *state);
#ifdef HAVE_TOUCHSCREEN
static void kbd_draw_buttons(struct keyboard_parameters *pm, struct screen *sc);
static int keyboard_touchscreen(struct keyboard_parameters *pm,
struct screen *sc, struct edit_state *state);
#endif
static void kbd_insert_selected(struct keyboard_parameters *pm,
struct edit_state *state);
static void kbd_backspace(struct edit_state *state);
static void kbd_move_cursor(struct edit_state *state, int dir);
static void kbd_move_picker_horizontal(struct keyboard_parameters *pm,
struct edit_state *state, int dir);
static void kbd_move_picker_vertical(struct keyboard_parameters *pm,
struct edit_state *state, int dir);
int kbd_input(char* text, int buflen, unsigned short *kbd)
{
bool done = false;
struct keyboard_parameters * const param = kbd_param;
struct edit_state state;
unsigned short ch;
int ret = 0; /* assume success */
FOR_NB_SCREENS(l)
{
viewportmanager_theme_enable(l, false, NULL);
}
/* initialize state */
state.text = text;
state.buflen = buflen;
/* Initial edit position is after last character */
state.editpos = utf8length(state.text);
state.cur_blink = true;
#ifdef HAVE_MORSE_INPUT
state.morse_mode = global_settings.morse_input;
state.morse_reading = false;
#endif
state.hangul = false;
state.changed = 0;
if (!kbd_loaded)
{
/* Copy default keyboard to buffer */
FOR_NB_SCREENS(l)
{
struct keyboard_parameters *pm = &param[l];
unsigned short *pbuf;
const unsigned char *p;
int len = 0;
#if LCD_WIDTH >= 160 && LCD_HEIGHT >= 96
struct screen *sc = &screens[l];
if (sc->getwidth() >= 160 && sc->getheight() >= 96)
{
p = "ABCDEFG abcdefg !?\" @#$%+'\n"
"HIJKLMN hijklmn 789 &_()-`\n"
"OPQRSTU opqrstu 456 §|{}/<\n"
"VWXYZ., vwxyz.,0123 ~=[]*>\n"
"ÀÁÂÃÄÅÆ ÌÍÎÏ ÈÉÊË ¢£¤¥¦§©®\n"
"àáâãäåæ ìíîï èéêë «»°ºª¹²³\n"
"ÓÒÔÕÖØ ÇÐÞÝß ÙÚÛÜ ¯±×÷¡¿µ·\n"
"òóôõöø çðþýÿ ùúûü ¼½¾¬¶¨:;";
pm->default_lines = 8;
pm->max_line_len = 26;
}
else
#endif /* LCD_WIDTH >= 160 && LCD_HEIGHT >= 96 */
{
p = "ABCDEFG !?\" @#$%+'\n"
"HIJKLMN 789 &_()-`\n"
"OPQRSTU 456 §|{}/<\n"
"VWXYZ.,0123 ~=[]*>\n"
"abcdefg ¢£¤¥¦§©®¬\n"
"hijklmn «»°ºª¹²³¶\n"
"opqrstu ¯±×÷¡¿µ·¨\n"
"vwxyz., :;¼½¾ \n"
"ÀÁÂÃÄÅÆ ÌÍÎÏ ÈÉÊË\n"
"àáâãäåæ ìíîï èéêë\n"
"ÓÒÔÕÖØ ÇÐÞÝß ÙÚÛÜ\n"
"òóôõöø çðþýÿ ùúûü";
pm->default_lines = 4;
pm->max_line_len = 18;
}
pbuf = pm->kbd_buf;
while (*p)
{
p = utf8decode(p, &pbuf[len+1]);
if (pbuf[len+1] == '\n')
{
*pbuf = len;
pbuf += len+1;
len = 0;
}
else
len++;
}
*pbuf = len;
pbuf[len+1] = 0xFEFF; /* mark end of characters */
/* initialize parameters */
pm->x = pm->y = pm->page = 0;
}
kbd_loaded = true;
}
FOR_NB_SCREENS(l)
{
struct keyboard_parameters *pm = &param[l];
if(kbd) /* user supplied custom layout */
pm->kbd_buf_ptr = kbd;
else
pm->kbd_buf_ptr = pm->kbd_buf; /* internal layout buffer */
struct screen *sc = &screens[l];
kbd_calc_params(pm, sc, &state);
}
if (global_settings.talk_menu) /* voice UI? */
talk_spell(state.text, true); /* spell initial text */
while (!done)
{
/* These declarations are assigned to the screen on which the key
action occurred - pointers save a lot of space over array notation
when accessing the same array element countless times */
int button;
#if NB_SCREENS > 1
int button_screen;
#else
const int button_screen = 0;
#endif
struct keyboard_parameters *pm;
state.len_utf8 = utf8length(state.text);
FOR_NB_SCREENS(l)
{
/* declare scoped pointers inside screen loops - hide the
declarations from previous block level */
struct keyboard_parameters *pm = &param[l];
struct screen *sc = &screens[l];
sc->clear_display();
kbd_draw_picker(pm, sc, &state);
kbd_draw_edit_line(pm, sc, &state);
#ifdef HAVE_TOUCHSCREEN
if (pm->show_buttons)
kbd_draw_buttons(pm, sc);
#endif
}
FOR_NB_SCREENS(l)
screens[l].update();
state.cur_blink = !state.cur_blink;
button = get_action(
#ifdef HAVE_MORSE_INPUT
state.morse_mode? CONTEXT_MORSE_INPUT:
#endif
CONTEXT_KEYBOARD, HZ/2);
#if NB_SCREENS > 1
button_screen = (get_action_statuscode(NULL) & ACTION_REMOTE) ? 1 : 0;
#endif
pm = &param[button_screen];
#ifdef HAVE_TOUCHSCREEN
if (button == ACTION_TOUCHSCREEN)
{
struct screen *sc = &screens[button_screen];
button = keyboard_touchscreen(pm, sc, &state);
}
#endif
/* Remap some buttons to allow to move
* cursor in line edit mode and morse mode. */
if (pm->line_edit
#ifdef HAVE_MORSE_INPUT
|| state.morse_mode
#endif /* HAVE_MORSE_INPUT */
)
{
if (button == ACTION_KBD_LEFT)
button = ACTION_KBD_CURSOR_LEFT;
if (button == ACTION_KBD_RIGHT)
button = ACTION_KBD_CURSOR_RIGHT;
}
switch ( button )
{
case ACTION_KBD_DONE:
/* accepts what was entered and continues */
ret = 0;
done = true;
break;
case ACTION_KBD_ABORT:
ret = -1;
done = true;
break;
case ACTION_KBD_PAGE_FLIP:
#ifdef HAVE_MORSE_INPUT
if (state.morse_mode)
break;
#endif
if (++pm->page >= pm->pages)
pm->page = 0;
state.changed = CHANGED_PICKER;
break;
case ACTION_KBD_RIGHT:
kbd_move_picker_horizontal(pm, &state, 1);
break;
case ACTION_KBD_LEFT:
kbd_move_picker_horizontal(pm, &state, -1);
break;
case ACTION_KBD_DOWN:
kbd_move_picker_vertical(pm, &state, 1);
break;
case ACTION_KBD_UP:
kbd_move_picker_vertical(pm, &state, -1);
break;
#ifdef HAVE_MORSE_INPUT
#ifdef KBD_TOGGLE_INPUT
case ACTION_KBD_MORSE_INPUT:
state.morse_mode = !state.morse_mode;
state.changed = CHANGED_PICKER;
FOR_NB_SCREENS(l)
{
struct keyboard_parameters *pm = &param[l];
int y = pm->main_y;
pm->main_y = pm->old_main_y;
pm->old_main_y = y;
}
break;
#endif /* KBD_TOGGLE_INPUT */
case ACTION_KBD_MORSE_SELECT:
if (state.morse_mode && state.morse_reading)
{
state.morse_code <<= 1;
if ((current_tick - state.morse_tick) > HZ/5)
state.morse_code |= 0x01;
}
break;
#endif /* HAVE_MORSE_INPUT */
case ACTION_KBD_SELECT:
/* select doubles as backspace in line_edit */
if (pm->line_edit)
kbd_backspace(&state);
else
#ifdef HAVE_MORSE_INPUT
if (state.morse_mode)
{
state.morse_tick = current_tick;
if (!state.morse_reading)
{
state.morse_reading = true;
state.morse_code = 1;
}
}
else
#endif /* HAVE_MORSE_INPUT */
kbd_insert_selected(pm, &state);
break;
case ACTION_KBD_BACKSPACE:
kbd_backspace(&state);
break;
case ACTION_KBD_CURSOR_RIGHT:
kbd_move_cursor(&state, 1);
break;
case ACTION_KBD_CURSOR_LEFT:
kbd_move_cursor(&state, -1);
break;
case ACTION_NONE:
#ifdef HAVE_MORSE_INPUT
if (state.morse_reading)
{
int j;
logf("Morse: 0x%02x", state.morse_code);
state.morse_reading = false;
for (j = 0; morse_alphabets[j] != '\0'; j++)
{
if (morse_codes[j] == state.morse_code)
break ;
}
if (morse_alphabets[j] == '\0')
{
logf("Morse code not found");
break ;
}
/* turn off hangul input */
state.hangul = false;
kbd_inschar(&state, morse_alphabets[j]);
}
#endif /* HAVE_MORSE_INPUT */
break;
default:
if (default_event_handler(button) == SYS_USB_CONNECTED)
{
FOR_NB_SCREENS(l)
screens[l].setfont(FONT_SYSFIXED);
}
break;
} /* end switch */
if (button != ACTION_NONE)
{
state.cur_blink = true;
}
if (global_settings.talk_menu) /* voice UI? */
{
if (state.changed == CHANGED_PICKER)
{
if (pm->line_edit)
{
talk_id(VOICE_EDIT, false);
}
else
#ifdef HAVE_MORSE_INPUT
/* FIXME: We should talk something like Morse mode.. */
if (!state.morse_mode)
#endif
{
ch = get_kbd_ch(pm, pm->x, pm->y);
kbd_spellchar(ch);
}
}
else if (state.changed == CHANGED_CURSOR)
{
int c = utf8seek(state.text, state.editpos);
kbd_spellchar(state.text[c]);
}
else if (state.changed == CHANGED_TEXT)
talk_spell(state.text, false); /* speak revised text */
}
state.changed = 0;
}
if (ret < 0)
splash(HZ/2, ID2P(LANG_CANCEL));
#if defined(HAVE_MORSE_INPUT) && defined(KBD_TOGGLE_INPUT)
if (global_settings.morse_input != state.morse_mode)
{
global_settings.morse_input = state.morse_mode;
settings_save();
}
#endif /* HAVE_MORSE_INPUT && KBD_TOGGLE_INPUT */
FOR_NB_SCREENS(l)
{
screens[l].setfont(FONT_UI);
viewportmanager_theme_undo(l, false);
}
return ret;
}
static void kbd_calc_params(struct keyboard_parameters *pm,
struct screen *sc, struct edit_state *state)
{
struct font* font;
const unsigned char *p;
unsigned short ch, *pbuf;
int icon_w, sc_w, sc_h, w;
int i, total_lines;
#ifdef HAVE_TOUCHSCREEN
int button_h = 0;
bool flippage_button = false;
pm->show_buttons = (sc->screen_type == SCREEN_MAIN &&
(touchscreen_get_mode() == TOUCHSCREEN_POINT));
#endif
pm->curfont = pm->default_lines ? FONT_SYSFIXED : sc->getuifont();
font = font_get(pm->curfont);
pm->font_h = font->height;
/* check if FONT_UI fits the screen */
if (2*pm->font_h + 3 > sc->getheight())
{
pm->curfont = FONT_SYSFIXED;
font = font_get(FONT_SYSFIXED);
pm->font_h = font->height;
}
#ifdef HAVE_TOUCHSCREEN
pm->font_h = GRID_SIZE(sc->screen_type, pm->font_h);
#endif
/* find max width of keyboard glyphs.
* since we're going to be adding spaces,
* max width is at least their width */
pm->font_w = font_get_width(font, ' ');
for (pbuf = pm->kbd_buf_ptr; *pbuf != 0xFEFF; pbuf += i)
{
for (i = 0; ++i <= *pbuf; )
{
w = font_get_width(font, pbuf[i]);
if (pm->font_w < w)
pm->font_w = w;
}
}
/* Find max width for text string */
pm->text_w = pm->font_w;
p = state->text;
while (*p)
{
p = utf8decode(p, &ch);
w = font_get_width(font, ch);
if (pm->text_w < w)
pm->text_w = w;
}
#ifdef HAVE_TOUCHSCREEN
pm->font_w = GRID_SIZE(sc->screen_type, pm->font_w);
#endif
/* calculate how many characters to put in a row. */
icon_w = get_icon_width(sc->screen_type);
sc_w = sc->getwidth();
if (pm->font_w < sc_w / pm->max_line_len)
pm->font_w = sc_w / pm->max_line_len;
pm->max_chars = sc_w / pm->font_w;
pm->max_chars_text = (sc_w - icon_w * 2 - 2) / pm->text_w;
if (pm->max_chars_text < 3 && icon_w > pm->text_w)
pm->max_chars_text = sc_w / pm->text_w - 2;
/* calculate pm->pages and pm->lines */
sc_h = sc->getheight();
#ifdef HAVE_TOUCHSCREEN
/* add space for buttons */
if (pm->show_buttons)
{
/* reserve place for OK/Del/Cancel buttons, use ui font for them */
button_h = GRID_SIZE(sc->screen_type, sc->getcharheight());
sc_h -= MAX(MIN_GRID_SIZE*2, button_h);
}
recalc_param:
#endif
pm->lines = sc_h / pm->font_h - 1;
if (pm->default_lines && pm->lines > pm->default_lines)
pm->lines = pm->default_lines;
pm->keyboard_margin = sc_h - (pm->lines+1)*pm->font_h;
if (pm->keyboard_margin < 3 && pm->lines > 1)
{
pm->lines--;
pm->keyboard_margin += pm->font_h;
}
if (pm->keyboard_margin > DEFAULT_MARGIN)
pm->keyboard_margin = DEFAULT_MARGIN;
total_lines = 0;
for (pbuf = pm->kbd_buf_ptr; (i = *pbuf) != 0xFEFF; pbuf += i + 1)
total_lines += (i ? (i + pm->max_chars - 1) / pm->max_chars : 1);
pm->pages = (total_lines + pm->lines - 1) / pm->lines;
pm->lines = (total_lines + pm->pages - 1) / pm->pages;
#ifdef HAVE_TOUCHSCREEN
if (pm->pages > 1 && pm->show_buttons && !flippage_button)
{
/* add space for flip page button */
sc_h -= button_h;
flippage_button = true;
goto recalc_param;
}
#endif
if (pm->page >= pm->pages)
pm->x = pm->y = pm->page = 0;
pm->main_y = pm->font_h*pm->lines + pm->keyboard_margin;
pm->keyboard_margin -= pm->keyboard_margin/2;
#ifdef HAVE_TOUCHSCREEN
/* flip page button is put between piker and edit line */
if (flippage_button)
pm->main_y += button_h;
#endif
#ifdef HAVE_MORSE_INPUT
pm->old_main_y = sc_h - pm->font_h;
if (state->morse_mode)
{
int y = pm->main_y;
pm->main_y = pm->old_main_y;
pm->old_main_y = y;
}
#endif
}
static void kbd_draw_picker(struct keyboard_parameters *pm,
struct screen *sc, struct edit_state *state)
{
char outline[8];
#ifdef HAVE_MORSE_INPUT
if (state->morse_mode)
{
const int w = 6, h = 8; /* sysfixed font width, height */
int i, j, x, y;
int sc_w = sc->getwidth(), sc_h = pm->main_y - pm->keyboard_margin - 1;
/* Draw morse code screen with sysfont */
sc->setfont(FONT_SYSFIXED);
x = 0;
y = 0;
outline[1] = '\0';
/* Draw morse code table with code descriptions. */
for (i = 0; morse_alphabets[i] != '\0'; i++)
{
int morse_code;
outline[0] = morse_alphabets[i];
sc->putsxy(x, y, outline);
morse_code = morse_codes[i];
for (j = 0; morse_code > 0x01; morse_code >>= 1)
j++;
x += w + 3 + j*4;
morse_code = morse_codes[i];
for (; morse_code > 0x01; morse_code >>= 1)
{
x -= 4;
if (morse_code & 0x01)
sc->fillrect(x, y + 2, 3, 4);
else
sc->fillrect(x, y + 3, 1, 2);
}
x += w*5 - 3;
if (x + w*6 >= sc_w)
{
x = 0;
y += h;
if (y + h >= sc_h)
break;
}
}
}
else
#else
(void) state;
#endif /* HAVE_MORSE_INPUT */
{
/* draw page */
int i, j;
int w, h;
unsigned short ch;
unsigned char *utf8;
sc->setfont(pm->curfont);
for (j = 0; j < pm->lines; j++)
{
for (i = 0; i < pm->max_chars; i++)
{
ch = get_kbd_ch(pm, i, j);
utf8 = utf8encode(ch, outline);
*utf8 = 0;
sc->getstringsize(outline, &w, &h);
sc->putsxy(i*pm->font_w + (pm->font_w-w) / 2,
j*pm->font_h + (pm->font_h-h) / 2, outline);
}
}
if (!pm->line_edit)
{
/* highlight the key that has focus */
sc->set_drawmode(DRMODE_COMPLEMENT);
sc->fillrect(pm->font_w*pm->x, pm->font_h*pm->y,
pm->font_w, pm->font_h);
sc->set_drawmode(DRMODE_SOLID);
}
}
}
static void kbd_draw_edit_line(struct keyboard_parameters *pm,
struct screen *sc, struct edit_state *state)
{
char outline[8];
unsigned char *utf8;
int i = 0, j = 0, icon_w, w;
int sc_w = sc->getwidth();
int y = pm->main_y - pm->keyboard_margin;
int text_margin = (sc_w - pm->text_w * pm->max_chars_text) / 2;
/* Clear text area one pixel above separator line so any overdraw
doesn't collide */
screen_clear_area(sc, 0, y - 1, sc_w, pm->font_h + 6);
sc->hline(0, sc_w - 1, y);
/* write out the text */
sc->setfont(pm->curfont);
pm->leftpos = MAX(0, MIN(state->len_utf8, state->editpos + 2)
- pm->max_chars_text);
pm->curpos = state->editpos - pm->leftpos;
utf8 = state->text + utf8seek(state->text, pm->leftpos);
while (*utf8 && i < pm->max_chars_text)
{
j = utf8seek(utf8, 1);
strlcpy(outline, utf8, j+1);
sc->getstringsize(outline, &w, NULL);
sc->putsxy(text_margin + i*pm->text_w + (pm->text_w-w)/2,
pm->main_y, outline);
utf8 += j;
i++;
}
icon_w = get_icon_width(sc->screen_type);
if (pm->leftpos > 0)
{
/* Draw nicer bitmap arrow if room, else settle for "<". */
if (text_margin >= icon_w)
{
screen_put_icon_with_offset(sc, 0, 0,
(text_margin - icon_w) / 2,
pm->main_y, Icon_Reverse_Cursor);
}
else
{
sc->getstringsize("<", &w, NULL);
sc->putsxy(text_margin - w, pm->main_y, "<");
}
}
if (state->len_utf8 - pm->leftpos > pm->max_chars_text)
{
/* Draw nicer bitmap arrow if room, else settle for ">". */
if (text_margin >= icon_w)
{
screen_put_icon_with_offset(sc, 0, 0,
sc_w - (text_margin + icon_w) / 2,
pm->main_y, Icon_Cursor);
}
else
{
sc->putsxy(sc_w - text_margin, pm->main_y, ">");
}
}
/* cursor */
i = text_margin + pm->curpos * pm->text_w;
if (state->cur_blink)
sc->vline(i, pm->main_y, pm->main_y + pm->font_h - 1);
if (state->hangul) /* draw underbar */
sc->hline(i - pm->text_w, i, pm->main_y + pm->font_h - 1);
if (pm->line_edit)
{
sc->set_drawmode(DRMODE_COMPLEMENT);
sc->fillrect(0, y + 2, sc_w, pm->font_h + 2);
sc->set_drawmode(DRMODE_SOLID);
}
}
#ifdef HAVE_TOUCHSCREEN
static void kbd_draw_buttons(struct keyboard_parameters *pm, struct screen *sc)
{
struct viewport vp;
int button_h, text_h, text_y;
int sc_w = sc->getwidth(), sc_h = sc->getheight();
viewport_set_defaults(&vp, sc->screen_type);
vp.flags |= VP_FLAG_ALIGN_CENTER;
sc->set_viewport(&vp);
text_h = sc->getcharheight();
button_h = GRID_SIZE(sc->screen_type, text_h);
text_y = (button_h - text_h) / 2 + 1;
vp.x = 0;
vp.y = 0;
vp.width = sc_w;
vp.height = button_h;
/* draw buttons */
if (pm->pages > 1)
{
/* button to flip page. */
vp.y = pm->lines*pm->font_h;
sc->hline(0, sc_w - 1, 0);
sc->putsxy(0, text_y, ">");
}
/* OK/Del/Cancel buttons */
button_h = MAX(MIN_GRID_SIZE*2, button_h);
text_y = (button_h - text_h) / 2 + 1;
vp.y = sc_h - button_h - 1;
vp.height = button_h;
sc->hline(0, sc_w - 1, 0);
vp.width = sc_w/3;
sc->putsxy(0, text_y, str(LANG_KBD_OK));
vp.x += vp.width;
sc->vline(0, 0, button_h);
sc->putsxy(0, text_y, str(LANG_KBD_DELETE));
vp.x += vp.width;
sc->vline(0, 0, button_h);
sc->putsxy(0, text_y, str(LANG_KBD_CANCEL));
sc->set_viewport(NULL);
}
static int keyboard_touchscreen(struct keyboard_parameters *pm,
struct screen *sc, struct edit_state *state)
{
short x, y;
const int button = action_get_touchscreen_press(&x, &y);
const int sc_w = sc->getwidth(), sc_h = sc->getheight();
int button_h = MAX(MIN_GRID_SIZE*2, sc->getcharheight());
#ifdef HAVE_MORSE_INPUT
if (state->morse_mode && y < pm->main_y - pm->keyboard_margin)
{
/* don't return ACTION_NONE since it has effect in morse mode. */
return button == BUTTON_TOUCHSCREEN? ACTION_KBD_SELECT:
button & BUTTON_REL? ACTION_KBD_MORSE_SELECT: ACTION_STD_OK;
}
#else
(void) state;
#endif
if (x < 0 || y < 0)
return ACTION_NONE;
if (y < pm->lines*pm->font_h)
{
if (x/pm->font_w < pm->max_chars)
{
/* picker area */
state->changed = CHANGED_PICKER;
pm->x = x/pm->font_w;
pm->y = y/pm->font_h;
pm->line_edit = false;
if (button == BUTTON_REL)
return ACTION_KBD_SELECT;
}
}
else if (y < pm->main_y - pm->keyboard_margin)
{
/* button to flip page */
if (button == BUTTON_REL)
return ACTION_KBD_PAGE_FLIP;
}
else if (y < sc_h - button_h)
{
/* edit line */
if (button & (BUTTON_REPEAT|BUTTON_REL))
{
if (x < sc_w/2)
return ACTION_KBD_CURSOR_LEFT;
else
return ACTION_KBD_CURSOR_RIGHT;
}
}
else
{
/* OK/Del/Cancel button */
if (button == BUTTON_REL)
{
if (x < sc_w/3)
return ACTION_KBD_DONE;
else if (x < (sc_w/3) * 2)
return ACTION_KBD_BACKSPACE;
else
return ACTION_KBD_ABORT;
}
}
return ACTION_NONE;
}
#endif
/* inserts the selected char */
static void kbd_insert_selected(struct keyboard_parameters *pm,
struct edit_state *state)
{
/* find input char */
unsigned short ch = get_kbd_ch(pm, pm->x, pm->y);
/* check for hangul input */
if (ch >= 0x3131 && ch <= 0x3163)
{
unsigned short tmp;
if (!state->hangul)
{
state->hlead = state->hvowel = state->htail = 0;
state->hangul = true;
}
if (!state->hvowel)
{
state->hvowel = ch;
}
else if (!state->htail)
{
state->htail = ch;
}
else
{
/* previous hangul complete */
/* check whether tail is actually lead of next char */
tmp = hangul_join(state->htail, ch, 0);
if (tmp != 0xfffd)
{
tmp = hangul_join(state->hlead, state->hvowel, 0);
kbd_delchar(state);
kbd_inschar(state, tmp);
/* insert dummy char */
kbd_inschar(state, ' ');
state->hlead = state->htail;
state->hvowel = ch;
state->htail = 0;
}
else
{
state->hvowel = state->htail = 0;
state->hlead = ch;
}
}
/* combine into hangul */
tmp = hangul_join(state->hlead, state->hvowel, state->htail);
if (tmp != 0xfffd)
{
kbd_delchar(state);
ch = tmp;
}
else
{
state->hvowel = state->htail = 0;
state->hlead = ch;
}
}
else
{
state->hangul = false;
}
/* insert char */
kbd_inschar(state, ch);
}
static void kbd_backspace(struct edit_state *state)
{
unsigned short ch;
if (state->hangul)
{
if (state->htail)
state->htail = 0;
else if (state->hvowel)
state->hvowel = 0;
else
state->hangul = false;
}
kbd_delchar(state);
if (state->hangul)
{
if (state->hvowel)
ch = hangul_join(state->hlead, state->hvowel, state->htail);
else
ch = state->hlead;
kbd_inschar(state, ch);
}
}
static void kbd_move_cursor(struct edit_state *state, int dir)
{
state->hangul = false;
state->editpos += dir;
if (state->editpos >= 0 && state->editpos <= state->len_utf8)
{
state->changed = CHANGED_CURSOR;
}
else if (state->editpos > state->len_utf8)
{
state->editpos = 0;
if (global_settings.talk_menu) beep_play(1000, 150, 1500);
}
else if (state->editpos < 0)
{
state->editpos = state->len_utf8;
if (global_settings.talk_menu) beep_play(1000, 150, 1500);
}
}
static void kbd_move_picker_horizontal(struct keyboard_parameters *pm,
struct edit_state *state, int dir)
{
state->changed = CHANGED_PICKER;
pm->x += dir;
if (pm->x < 0)
{
if (--pm->page < 0)
pm->page = pm->pages - 1;
pm->x = pm->max_chars - 1;
}
else if (pm->x >= pm->max_chars)
{
if (++pm->page >= pm->pages)
pm->page = 0;
pm->x = 0;
}
}
static void kbd_move_picker_vertical(struct keyboard_parameters *pm,
struct edit_state *state, int dir)
{
state->changed = CHANGED_PICKER;
#ifdef HAVE_MORSE_INPUT
if (state->morse_mode)
{
pm->line_edit = !pm->line_edit;
return;
}
#endif /* HAVE_MORSE_INPUT */
pm->y += dir;
if (pm->line_edit)
{
pm->y = (dir > 0 ? 0 : pm->lines - 1);
pm->line_edit = false;
}
else if (pm->y < 0 || pm->y >= pm->lines)
{
pm->line_edit = true;
}
}
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