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#include "tui.h"
#define T_ESC "\x1b"
//prepare terminal ui
int tui_init( tui_t **t )
{
int ret = -1;
tui_t *tui=NULL;
//should be empty pointer
if (*t != NULL)
return -1;
tui = malloc( sizeof(tui_t) );
if ( tui == NULL )
return -1;
memset( tui, 0, sizeof( tui_t ) );
tui->ifd = STDIN_FILENO;
tui->ofd = STDOUT_FILENO;
//if you whant raw mode then you should set it man
if ( tcgetattr( tui->ifd, &tui->orig_i ) == -1 )
goto exit_error;
tui->raw_i = tui->orig_i;
if ( tcgetattr( tui->ofd, &tui->orig_o ) == -1 )
goto exit_error;
tui->raw_o = tui->orig_o;
//set not to echo output
/* input modes: no break, no CR to NL, no parity check, no strip char,
* no start/stop output control. */
tui->raw_i.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
/* output modes - disable post raw */
tui->raw_i.c_oflag &= ~(OPOST);
/* control modes - set 8 bit chars */
tui->raw_i.c_cflag |= (CS8);
/* local modes - choing off, canonical off, no extended functions,
* no signal chars (^Z,^C) */
tui->raw_i.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG);
/* control chars - set return condition: min number of bytes and timer.
* We want read to return every single byte, without timeout. */
/* put terminal in raw mode after flushing */
if (tcsetattr( tui->ifd, TCSAFLUSH, &tui->raw_i) < 0)
{
//ERROR("Cannot set new terminal input attribures\n");
goto exit_error;
}
*t = tui;
ret = 0;
return ret;
exit_error:
free( tui );
return -1;
}
//init waterfall
int tui_waterfall( tui_t **t, tui_waterfall_t **w )
{
int ret=-1;
tui_waterfall_t *wtf = NULL;
//waterfall should be NULL
if ( *w != NULL )
return -1;
wtf = malloc( sizeof(tui_waterfall_t) );
if ( wtf == NULL )
{
return -1;
}
memset( wtf, 0, sizeof(tui_waterfall_t) );
*w = wtf;
(*t)->wf = wtf;
ret = 0;
return ret;
//exit_error:
// return -1;
}
//first draw, draw all buffer
int tui_waterfall_draw( tui_waterfall_t *w )
{
int ret = -1;
return ret;
}
//redraw only changed lines
int tui_waterfall_redraw( tui_waterfall_t *w )
{
int ret = -1;
return ret;
}
//update params of waterfall and then need to draw not redraw
int tui_waterfall_update( tui_t *t )
{
int ret = -1;
int row=-1,col=-1;
char buf[32];
int i;
//we trust that all params are ok
/* go to right marging and get position */
if ( write( t->ofd, "\x1b[999C", 6 ) != 6 )
goto exit_error;
if ( write( t->ofd, "\x1b[6n", 4 ) != 4 )
goto exit_error;
i = 0;
//printf("here=%d\n", sizeof(buf));
while (i < sizeof(buf)-1)
{
if ( read( t->ifd, buf+i,1 ) != 1 ) break;
if (buf[i] == 'R') break;
i++;
}
buf[i] = '\0';
//printf("i=%d,buf=[%s]\n",i,buf);
if ( buf[0] != '\x1b' || buf[1] != '[' )
{
goto exit_error;
}
//printf("i=%d,buf=[%s]\n",i,buf);
if ( sscanf( buf+2, "%d;%d", &row, &col) != 2 )
goto exit_error;
//write( t->ofd, "\x1b[1C", 4 );
write( t->ofd, T_ESC "[H" T_ESC "[2J", 7 );
write( t->ofd, T_ESC "[0;0H", 6);
t->wf->w = col;
ret = 0;
return ret;
exit_error:
return -1;
}
//push one line of data to buffer
int tui_waterfall_data( tui_t *t, int len, uint8_t *buf )
{
int ret = -1;
int i;
i = 0;
while ( (i< t->wf->w) && ( i<len) )
{
//printf("-%d", buf[i]);
uint8_t c = tui_waterfall_color( buf[i] );
char buf[32];
snprintf( buf, 32, T_ESC "[48;5;%dm " T_ESC "[0m",c);
write( t->ofd, buf, strlen(buf) );
i++;
}
return ret;
}
uint8_t tui_waterfall_color( uint8_t d )
{
uint8_t color=15;
/*
if ( d < 50 )
{
color = 17;
} else if ( d < 100 )
{
color = 18;
} else if ( d < 150 )
{
color = 19;
} else if ( d < 200 )
{
color = 20;
} else
{
color = 21;
}
*/
if ( d == 0 )
{
color = 17;
} else if ( d == 1 )
{
color = 18;
} else if ( d == 2 )
{
color = 19;
} else if ( d == 3 )
{
color = 20;
} else if ( d == 4 )
{
color = 21;
} else if ( d == 5 )
{
color = 26;
} else if ( d == 6 )
{
color = 27;
} else if ( d == 7 )
{
color = 44;
} else
{
color = 230;
}
/*
uint8_t col[] = { 16,17,18,19,20,21,26,27,44,45,86,87,230,229,228,227,226,214,202,196,160,124,88,52 };
int len = 24;
int step = 256/len;
color = col[d/step];
*/
return color;
}
//close terminal ui
int tui_close( tui_t *t )
{
int ret = -1;
//shouldnt be empty pointer
if ( t == NULL )
return -1;
//restore terminal mode after closing
tcsetattr( t->ifd, TCSAFLUSH, &t->orig_i );
return ret;
}
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