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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 Robert E. Hak
*
* 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 "menu.h"
#include "button.h"
#include "kernel.h"
#include "debug.h"
/* Global values for menuing */
static int menu_top;
static int menu_bottom;
static int cursor;
static struct menu_items* items;
static int itemcount;
/*
* Move the cursor to a particular id,
* target: where you want it to be
*/
void put_cursor(int target)
{
lcd_puts(0, cursor, " ");
cursor = target;
lcd_puts(0, cursor, "-");
}
int is_cursor_menu_top(void)
{
return ((cursor == menu_top) ? 1 : 0);
}
int is_cursor_menu_bottom(void)
{
return ((cursor == menu_bottom) ? 1 : 0);
}
void put_cursor_menu_top(void)
{
put_cursor(menu_top);
}
void put_cursor_menu_bottom(void)
{
put_cursor(menu_bottom);
}
void move_cursor_up(void)
{
put_cursor(cursor-1);
}
void move_cursor_down(void)
{
put_cursor(cursor+1);
}
void redraw_cursor(void)
{
lcd_puts(0, cursor, "-");
}
/* We call the function pointer related to the current cursor position */
void execute_menu_item(void)
{
/* call the proper function for this line */
items[cursor].function();
}
void menu_init(struct menu_items* mitems, int count)
{
items = mitems;
itemcount = count;
menu_top = items[0].id;
menu_bottom = count-1;
cursor = menu_top;
}
void menu_draw(void)
{
int i = 0;
lcd_clear_display();
#ifdef HAVE_LCD_BITMAP
lcd_setmargins(0,0);
lcd_setfont(0);
#endif
for (i = 0; i < itemcount; i++) {
lcd_puts(1, i, items[i].desc);
if (i < menu_top)
menu_top = i;
if (i > menu_bottom)
menu_bottom = i;
}
redraw_cursor();
lcd_update();
}
void menu_run(void)
{
int key;
menu_draw();
while(1) {
key = button_get();
if(!key) {
sleep(1);
continue;
}
switch(key) {
#ifdef HAVE_RECORDER_KEYPAD
case BUTTON_UP:
#else
case BUTTON_LEFT:
#endif
if(is_cursor_menu_top()){
/* wrap around to menu bottom */
put_cursor_menu_bottom();
} else {
/* move up */
move_cursor_up();
}
break;
#ifdef HAVE_RECORDER_KEYPAD
case BUTTON_DOWN:
#else
case BUTTON_RIGHT:
#endif
if(is_cursor_menu_bottom() ){
/* wrap around to menu top */
put_cursor_menu_top();
} else {
/* move down */
move_cursor_down();
}
break;
#ifdef HAVE_RECORDER_KEYPAD
case BUTTON_RIGHT:
#endif
case BUTTON_PLAY:
/* Erase current display state */
lcd_clear_display();
execute_menu_item();
/* Return to previous display state */
menu_draw();
break;
#ifdef HAVE_RECORDER_KEYPAD
case BUTTON_LEFT:
#else
case BUTTON_STOP:
#endif
return;
default:
break;
}
lcd_update();
}
}
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