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#include <stdio.h>
#include <curses.h>
#include <console.h>
FILE_LICENCE ( GPL2_OR_LATER );
static void ansiscr_reset(struct _curses_screen *scr) __nonnull;
static void ansiscr_movetoyx(struct _curses_screen *scr,
unsigned int y, unsigned int x) __nonnull;
static void ansiscr_putc(struct _curses_screen *scr, chtype c) __nonnull;
unsigned short _COLS = 80;
unsigned short _LINES = 24;
static void ansiscr_reset ( struct _curses_screen *scr ) {
/* Reset terminal attributes and clear screen */
scr->attrs = 0;
scr->curs_x = 0;
scr->curs_y = 0;
printf ( "\033[0m" );
}
static void ansiscr_movetoyx ( struct _curses_screen *scr,
unsigned int y, unsigned int x ) {
if ( ( x != scr->curs_x ) || ( y != scr->curs_y ) ) {
/* ANSI escape sequence to update cursor position */
printf ( "\033[%d;%dH", ( y + 1 ), ( x + 1 ) );
scr->curs_x = x;
scr->curs_y = y;
}
}
static void ansiscr_putc ( struct _curses_screen *scr, chtype c ) {
unsigned int character = ( c & A_CHARTEXT );
attr_t attrs = ( c & ( A_ATTRIBUTES | A_COLOR ) );
int bold = ( attrs & A_BOLD );
attr_t cpair = PAIR_NUMBER ( attrs );
short fcol;
short bcol;
/* Update attributes if changed */
if ( attrs != scr->attrs ) {
scr->attrs = attrs;
pair_content ( cpair, &fcol, &bcol );
/* ANSI escape sequence to update character attributes */
printf ( "\033[0;%d;3%d;4%dm", ( bold ? 1 : 22 ), fcol, bcol );
}
/* Print the actual character */
putchar ( character );
/* Update expected cursor position */
if ( ++(scr->curs_x) == _COLS ) {
scr->curs_x = 0;
++scr->curs_y;
}
}
static int ansiscr_getc ( struct _curses_screen *scr __unused ) {
return getchar();
}
static bool ansiscr_peek ( struct _curses_screen *scr __unused ) {
return iskey();
}
SCREEN _ansi_screen = {
.init = ansiscr_reset,
.exit = ansiscr_reset,
.movetoyx = ansiscr_movetoyx,
.putc = ansiscr_putc,
.getc = ansiscr_getc,
.peek = ansiscr_peek,
};
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