rockbox/apps/recorder/keyboard.c
Linus Nielsen Feltzing 55fc6df874 The keyboard input didn't terminate the on-screen string
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3472 a1c6a512-1295-4272-9138-f99709370657
2003-03-17 23:16:20 +00:00

290 lines
8.3 KiB
C

/***************************************************************************
* __________ __ ___.
* 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 "version.h"
#include "debug_menu.h"
#include "sprintf.h"
#include <string.h>
#include "font.h"
#include "screens.h"
#define KEYBOARD_LINES 4
#define KEYBOARD_PAGES 3
static void kbd_setupkeys(char* line[KEYBOARD_LINES], int page)
{
switch (page) {
case 0:
line[0] = "ABCDEFG !?\" @#$%+'";
line[1] = "HIJKLMN 789 &_()-`";
line[2] = "OPQRSTU 456 §|{}/<";
line[3] = "VWXYZ.,0123 ~=[]*>";
break;
case 1:
line[0] = "abcdefg ¢£¤¥¦§©®¬";
line[1] = "hijklmn «»°ºª¹²³¶";
line[2] = "opqrstu ¯±×÷¡¿µ·¨";
line[3] = "vwxyz., ¼½¾ ";
break;
case 2:
line[0] = "ÀÁÂÃÄÅÆ ÌÍÎÏ ÈÉÊË";
line[1] = "àáâãäåæ ìíîï èéêë";
line[2] = "ÓÒÔÕÖØ ÇÐÞÝß ÙÚÛÜ";
line[3] = "òóôõöø çðþýÿ ùúûü";
break;
}
}
static void kbd_draw_statusbar_button(int num, char* caption, int y, int fw)
{
int x, x2, tw, cx;
x = num*(LCD_WIDTH/3);
x2 = (num+1)*(LCD_WIDTH/3);
tw = fw * strlen(caption);
cx = x2 - x;
/* center the text */
lcd_putsxy((x + (cx/2)) - (tw/2), y, caption);
lcd_invertrect(x, y - 1, (x2-x)-1, LCD_HEIGHT-y+1);
}
int kbd_input(char* text, int buflen)
{
bool done = false;
int page = 0;
int font_w = 0, font_h = 0, i;
int x = 0, y = 0;
int main_x, main_y, max_chars, margin;
int status_y1, status_y2, curpos;
int len;
int editpos;
char* line[KEYBOARD_LINES];
char outline[256];
char c = 0;
struct font* font = font_get(FONT_SYSFIXED);
lcd_setfont(FONT_SYSFIXED);
font_w = font->maxwidth;
font_h = font->height;
margin = 3;
main_y = (KEYBOARD_LINES + 1) * font_h + margin;
main_x = 0;
status_y1 = LCD_HEIGHT - font_h;
status_y2 = LCD_HEIGHT;
editpos = strlen(text);
max_chars = LCD_WIDTH / font_w;
kbd_setupkeys(line, page);
while(!done)
{
lcd_clear_display();
/* draw page */
for (i=0; i < KEYBOARD_LINES; i++)
lcd_putsxy(0, i * font_h, line[i]);
len = strlen(text);
/* separator */
lcd_drawline(0, main_y - margin, LCD_WIDTH, main_y - margin);
/* write out the text */
if (editpos < max_chars - 3 )
{
strncpy(outline, text, max_chars - 2);
if (len > max_chars - 2)
lcd_putsxy(LCD_WIDTH - font_w, main_y, ">");
curpos = (1 + editpos) * font_w;
}
else
{
/* not room for all text, cut left, right or both */
if (editpos == len )
{
if ( max_chars - 3 == len)
{
strncpy(outline, text, max_chars - 2);
curpos = (1 + editpos) * font_w;
}
else
{
strncpy(outline, text + editpos - max_chars + 2,
max_chars - 2);
if (len > max_chars - 2)
lcd_putsxy(0, main_y, "<");
curpos = ( max_chars - 1) * font_w;
}
}
else
{
if (len - 1 == editpos)
{
strncpy(outline, text + editpos - max_chars + 3,
max_chars - 2);
curpos = ( max_chars - 2) * font_w;
}
else
{
strncpy(outline, text + editpos - max_chars + 4,
max_chars - 2);
curpos = ( max_chars - 3) * font_w;
}
lcd_putsxy(LCD_WIDTH - font_w, main_y, ">");
lcd_putsxy(0, main_y, "<");
}
}
/* Zero terminate the string */
outline[max_chars - 2] = '\0';
lcd_putsxy(font_w,main_y,outline);
/* cursor */
lcd_drawline(curpos, main_y, curpos, main_y + font_h);
/* draw the status bar */
kbd_draw_statusbar_button(0, "Shift", status_y1, font_w);
kbd_draw_statusbar_button(1, "OK", status_y1, font_w);
kbd_draw_statusbar_button(2, "Del", status_y1, font_w);
/* highlight the key that has focus */
lcd_invertrect(font_w * x, font_h * y, font_w, font_h);
lcd_update();
switch ( button_get(true) ) {
case BUTTON_OFF:
/* abort */
lcd_setfont(FONT_UI);
return -1;
break;
case BUTTON_F1:
/* Page */
if (++page == KEYBOARD_PAGES)
page = 0;
kbd_setupkeys(line, page);
break;
case BUTTON_RIGHT:
case BUTTON_RIGHT | BUTTON_REPEAT:
if (x < (int)strlen(line[y]) - 1)
x++;
else
x = 0;
break;
case BUTTON_LEFT:
case BUTTON_LEFT | BUTTON_REPEAT:
if (x)
x--;
else
x = strlen(line[y]) - 1;
break;
case BUTTON_DOWN:
case BUTTON_DOWN | BUTTON_REPEAT:
if (y < KEYBOARD_LINES - 1)
y++;
else
y=0;
break;
case BUTTON_UP:
case BUTTON_UP | BUTTON_REPEAT:
if (y)
y--;
else
y = KEYBOARD_LINES - 1;
break;
case BUTTON_F3:
case BUTTON_F3 | BUTTON_REPEAT:
/* backspace */
if (editpos > 0)
{
for (i = editpos; i <= (len - 1);i++)
{
text[i-1] = text[i];
}
text[i-1]='\0';
editpos--;
if (editpos < 0)
editpos=0;
}
break;
case BUTTON_F2:
/* F2 accepts what was entered and continues */
done = true;
break;
case BUTTON_PLAY:
/* PLAY inserts the selected char */
if (len<buflen)
{
c = line[y][x];
if ( editpos == len )
{
text[len] = c;
text[len+1] = 0;
}
else
{
for (i = len ; i + 1 > editpos; i--)
text[i+1] = text[i];
text[editpos] = c;
}
editpos++;
}
break;
case BUTTON_ON | BUTTON_RIGHT:
case BUTTON_ON | BUTTON_RIGHT | BUTTON_REPEAT:
/* moved cursor right */
editpos++;
if (editpos > len)
editpos = len;
break;
case BUTTON_ON | BUTTON_LEFT:
case BUTTON_ON | BUTTON_LEFT | BUTTON_REPEAT:
/* moved cursor left */
editpos--;
if (editpos < 0)
editpos = 0;
break;
case SYS_USB_CONNECTED:
usb_screen();
lcd_setfont(FONT_SYSFIXED);
break;
}
}
lcd_setfont(FONT_UI);
return 0;
}