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|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 Dan Everton (safetydan)
* Copyright (C) 2018 William Wilgus
* String function implementations taken from dietlibc 0.31 (GPLv2 License)
*
* 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 "plugin.h"
#define _ROCKCONF_H_ /* Protect against unwanted include */
#include "lua.h"
#include "lib/pluginlib_actions.h"
extern long strtol(const char *nptr, char **endptr, int base);
extern const char *strpbrk_n(const char *s, int smax, const char *accept);
#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
int errno = 0;
#endif
char *strerror(int errnum)
{
(void) errnum;
DEBUGF("strerror(%d)\n", errnum);
return NULL;
}
/* splash string and allow user to scroll around
* provides rudimentary text reflow
* timeout is disabled on user interaction
* returns the action that caused quit
* [ACTION_NONE, ACTION_STD_CANCEL, ACTION_STD_OK]
* !ACTION_NONE (only on initial timeout)!
* TIMEOUT can be TIMEOUT_BLOCK or time in ticks
*/
int splash_scroller(int timeout, const char* str)
{
if (!str)
str = "[nil]";
int w, ch_w, ch_h;
rb->lcd_getstringsize("W", &ch_w, &ch_h);
const int max_w = LCD_WIDTH - (ch_w * 2);
const int max_lines = LCD_HEIGHT / ch_h - 1;
const int wrap_thresh = (LCD_WIDTH / 3);
const char *ch;
const char *brk;
const int max_ch = (LCD_WIDTH / ch_w - 1) * 2;
char line[max_ch + 2]; /* display buffer */
const char break_chars[] = "@#$%^&*+-{}[]()/\\|<>:;.,? _\n\r\t";
int linepos, curline, linesdisp, realline, chars_next_break;
int action = ACTION_NONE;
int firstline = 0;
int cycles = 2; /* get action timeout returns immediately on first call */
while (cycles > 0)
{
/* walk whole buffer every refresh, only display relevant portion */
rb->lcd_clear_display();
curline = 0;
linepos = 0;
linesdisp = 0;
ch = str;
for (; *ch && linepos < max_ch; ch++)
{
if (ch[0] == '\t')
{
line[linepos++] = ' ';
line[linepos] = ' ';
}
else if (ch[0] == '\b' && timeout > 0)
{
line[linepos] = ' ';
rb->beep_play(1000, HZ, 1000);
}
else if (ch[0] < ' ') /* Dont copy control characters */
line[linepos] = (linepos == 0) ? '\0' : ' ';
else
line[linepos] = ch[0];
line[linepos + 1] = '\0'; /* terminate to check text extent */
rb->lcd_getstringsize(line, &w, NULL);
/* try to not split in middle of words */
if (w + wrap_thresh >= max_w &&
strpbrk_n(ch, 1, break_chars))
{
brk = strpbrk_n(ch+1, max_ch, break_chars);
chars_next_break = (brk - ch);
if (brk &&
(chars_next_break < 2 || w + (ch_w * chars_next_break) > max_w))
{
if (!isprint(line[linepos]))
{
line[linepos] = '\0';
ch--; /* back-up we want it on the next line */
}
w += max_w;
}
}
if (w > max_w ||
(ch[0] >= '\n' && iscntrl(ch[0])) ||
ch[1] == '\0')
{
realline = curline - firstline;
if (realline >= 0 && realline < max_lines)
{
rb->lcd_putsxy(0, realline * ch_h, line);
linesdisp++;
}
linepos = 0;
curline++;
continue;
}
linepos++;
}
rb->lcd_update();
if (timeout >= TIMEOUT_BLOCK)
{
action = rb->get_action(CONTEXT_STD, timeout);
switch(action)
{
case ACTION_STD_OK:
case ACTION_STD_CANCEL:
cycles--;
/* Fall Through */
case ACTION_NONE:
cycles--;
break;
case ACTION_STD_PREV:
timeout = TIMEOUT_BLOCK; /* disable timeout */
if(firstline > 0)
firstline--;
break;
case ACTION_STD_NEXT:
timeout = TIMEOUT_BLOCK; /* disable timeout */
if (linesdisp == max_lines)
firstline++;
break;
}
}
else
break;
}
return action;
}
long rb_pow(long x, long n)
{
long pow = 1;
unsigned long u;
if(n <= 0)
{
if(n == 0 || x == 1)
return 1;
if(x != -1)
return x != 0 ? 1/x : 0;
n = -n;
}
u = n;
while(1)
{
if(u & 01)
pow *= x;
if(u >>= 1)
x *= x;
else
break;
}
return pow;
}
int strcoll(const char * str1, const char * str2)
{
return rb->strcmp(str1, str2);
}
#ifndef _WIN32
struct tm * gmtime(const time_t *timep)
{
static struct tm time;
return rb->gmtime_r(timep, &time);
}
#endif
int get_current_path(lua_State *L, int level)
{
lua_Debug ar;
if(lua_getstack(L, level, &ar))
{
/* Try determining the base path of the current Lua chunk
and write it to dest. */
lua_getinfo(L, "S", &ar);
const char* curfile = &ar.source[1];
const char* pos = rb->strrchr(curfile, '/');
if(pos != NULL)
{
lua_pushlstring (L, curfile, pos - curfile + 1);
return 1;
}
}
lua_pushnil(L);
return 1;
}
/* filetol()
reads long int from an open file, skips preceding
whitespaces returns -1 if error, 1 on success.
*num set to LONG_MAX or LONG_MIN on overflow.
If number of digits is > than LUAI_MAXNUMBER2STR
filepointer will continue till the next non digit
but buffer will stop being filled with characters.
Preceding zero is ignored
*/
int filetol(int fd, long *num)
{
static char buffer[LUAI_MAXNUMBER2STR];
int retn = -1;
char chbuf = 0;
size_t count = 0;
bool neg = false;
long val;
while (rb->read(fd, &chbuf, 1) == 1)
{
if(retn || !isspace(chbuf))
{
switch(chbuf)
{
case '-':
{
if (retn > 0) /* 0 preceeds, this negative sign must be in error */
goto get_digits;
neg = true;
continue;
}
case '0': /* strip preceeding zeros */
{
*num = 0;
retn = 1;
continue;
}
default:
goto get_digits;
}
}
}
while (rb->read(fd, &chbuf, 1) == 1)
{
get_digits:
if(!isdigit(chbuf))
{
rb->lseek(fd, -1, SEEK_CUR);
break;
}
else if (count < LUAI_MAXNUMBER2STR - 2)
buffer[count++] = chbuf;
}
if(count)
{
buffer[count] = '\0';
val = strtol(buffer, NULL, 10);
*num = (neg)? -val:val;
retn = 1;
}
return retn;
}
int get_plugin_action(int timeout, bool with_remote)
{
static const struct button_mapping *m1[] = { pla_main_ctx };
int btn;
#ifndef HAVE_REMOTE_LCD
(void) with_remote;
#else
static const struct button_mapping *m2[] = { pla_main_ctx, pla_remote_ctx };
if (with_remote)
btn = pluginlib_getaction(timeout, m2, 2);
else
#endif
btn = pluginlib_getaction(timeout, m1, 1);
return btn;
}
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