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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 Daniel 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 "config.h"
#ifdef ROCKBOX_HAS_LOGF
#include <file.h>
#include <timefuncs.h>
#include <string.h>
#include <kernel.h>
#include <action.h>
#include <lcd.h>
#include <font.h>
#include "menu.h"
#include "logf.h"
#include "settings.h"
#include "logfdisp.h"
#include "action.h"
#include "splash.h"
#ifdef HAVE_LCD_BITMAP
int compute_nb_lines(int w, struct font* font)
{
int i, nb_lines;
int cur_x, delta_x;
if(logfindex == 0 && !logfwrap)
return 0;
if(logfwrap)
i = logfindex;
else
i = 0;
cur_x = 0;
nb_lines = 0;
do {
if(logfbuffer[i] == '\0')
{
cur_x = 0;
nb_lines++;
}
else
{
/* does character fit on this line ? */
delta_x = font_get_width(font, logfbuffer[i]);
if(cur_x + delta_x > w)
{
cur_x = 0;
nb_lines++;
}
/* update pointer */
cur_x += delta_x;
}
i++;
if(i >= MAX_LOGF_SIZE)
i = 0;
} while(i != logfindex);
return nb_lines;
}
bool logfdisplay(void)
{
int action;
int w, h, i, index;
int fontnr;
int cur_x, cur_y, delta_y, delta_x;
struct font* font;
int user_index;/* user_index will be number of the first line to display (warning: line!=logf entry) */
char buf[2];
fontnr = lcd_getfont();
font = font_get(fontnr);
/* get the horizontal size of each line */
font_getstringsize("A", NULL, &delta_y, fontnr);
buf[1] = '\0';
w = LCD_WIDTH;
h = LCD_HEIGHT;
/* start at the end of the log */
user_index = compute_nb_lines(w, font) - h/delta_y -1; /* if negative, will be set 0 to zero later */
do {
lcd_clear_display();
if(user_index < 0)
user_index = 0;
if(logfwrap)
i = logfindex;
else
i = 0;
index = 0;
cur_x = 0;
cur_y = 0;
/* nothing to print ? */
if(logfindex == 0 && !logfwrap)
goto end_print;
do {
if(logfbuffer[i] == '\0')
{
/* should be display a newline ? */
if(index >= user_index)
cur_y += delta_y;
cur_x = 0;
index++;
}
else
{
/* does character fit on this line ? */
delta_x = font_get_width(font, logfbuffer[i]);
if(cur_x + delta_x > w)
{
/* should be display a newline ? */
if(index >= user_index)
cur_y += delta_y;
cur_x = 0;
index++;
}
/* should we print character ? */
if(index >= user_index)
{
buf[0] = logfbuffer[i];
lcd_putsxy(cur_x, cur_y, buf);
}
/* update pointer */
cur_x += delta_x;
}
/* did we fill the screen ? */
if(cur_y > h)
break;
i++;
if(i >= MAX_LOGF_SIZE)
i = 0;
} while(i != logfindex);
end_print:
lcd_update();
action = get_action(CONTEXT_STD, HZ);
switch( action )
{
case ACTION_STD_NEXT:
case ACTION_STD_NEXTREPEAT:
user_index++;
break;
case ACTION_STD_PREV:
case ACTION_STD_PREVREPEAT:
user_index--;
break;
case ACTION_STD_OK:
user_index = 0;
break;
#ifdef HAVE_TOUCHSCREEN
case ACTION_TOUCHSCREEN:
{
short x, y;
static int prev_y;
action = action_get_touchscreen_press(&x, &y);
if(action & BUTTON_REL)
prev_y = 0;
else
{
if(prev_y != 0)
user_index += (prev_y - y) / delta_y;
prev_y = y;
}
}
#endif
default:
break;
}
} while(action != ACTION_STD_CANCEL);
return false;
}
#else /* HAVE_LCD_BITMAP */
bool logfdisplay(void)
{
/* TODO: implement a browser for charcell bitmaps */
return false;
}
#endif /* HAVE_LCD_BITMAP */
bool logfdump(void)
{
int fd;
splashf(HZ, "Log File Dumped");
/* nothing to print ? */
if(logfindex == 0 && !logfwrap)
/* nothing is logged just yet */
return false;
logfenabled = false;
fd = open(ROCKBOX_DIR "/logf.txt", O_CREAT|O_WRONLY|O_TRUNC, 0666);
if(-1 != fd) {
int i;
if(logfwrap)
i = logfindex;
else
i = 0;
do {
if(logfbuffer[i]=='\0')
fdprintf(fd, "\n");
else
fdprintf(fd, "%c", logfbuffer[i]);
i++;
if(i >= MAX_LOGF_SIZE)
i = 0;
} while(i != logfindex);
close(fd);
}
logfenabled = true;
return false;
}
#endif /* ROCKBOX_HAS_LOGF */
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