ansiterm.cpp 6.96 KiB
/* ansiterm.cpp */
/* Synchronet ANSI terminal functions */
/* $Id$ */
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#include "sbbs.h"
#define TIMEOUT_ANSI_GETXY 5 // Seconds
/****************************************************************************/
/* Returns the ANSI code to obtain the value of atr. Mixed attributes */
/* high intensity colors, or background/forground cobinations don't work. */
/* A call to attr is more appropriate, being it is intelligent */
/****************************************************************************/
const char *sbbs_t::ansi(int atr)
{
switch(atr) {
/* Special case */
case ANSI_NORMAL:
return("\x1b[0m");
case BLINK:
return("\x1b[5m");
/* Foreground */
case HIGH:
return("\x1b[1m");
case BLACK:
return("\x1b[30m");
case RED:
return("\x1b[31m");
case GREEN:
return("\x1b[32m");
case BROWN:
return("\x1b[33m");
case BLUE:
return("\x1b[34m"); case MAGENTA:
return("\x1b[35m");
case CYAN:
return("\x1b[36m");
case LIGHTGRAY:
return("\x1b[37m");
/* Background */
case BG_BLACK:
return("\x1b[40m");
case BG_RED:
return("\x1b[41m");
case BG_GREEN:
return("\x1b[42m");
case BG_BROWN:
return("\x1b[43m");
case BG_BLUE:
return("\x1b[44m");
case BG_MAGENTA:
return("\x1b[45m");
case BG_CYAN:
return("\x1b[46m");
case BG_LIGHTGRAY:
return("\x1b[47m");
}
return("-Invalid use of ansi()-");
}
/* insure str is at least 14 bytes in size! */
extern "C" char* ansi_attr(int atr, int curatr, char* str, BOOL color)
{
if(!color) { /* eliminate colors if terminal doesn't support them */
if(atr&LIGHTGRAY) /* if any foreground bits set, set all */
atr|=LIGHTGRAY;
if(atr&BG_LIGHTGRAY) /* if any background bits set, set all */
atr|=BG_LIGHTGRAY;
if((atr&LIGHTGRAY) && (atr&BG_LIGHTGRAY))
atr&=~LIGHTGRAY; /* if background is solid, foreground is black */
if(!atr)
atr|=LIGHTGRAY; /* don't allow black on black */
}
if(curatr==atr) { /* text hasn't changed. no sequence needed */
*str=0;
return str;
}
strcpy(str,"\033[");
if((!(atr&HIGH) && curatr&HIGH) || (!(atr&BLINK) && curatr&BLINK)
|| atr==LIGHTGRAY) {
strcat(str,"0;");
curatr=LIGHTGRAY;
}
if(atr&BLINK) { /* special attributes */
if(!(curatr&BLINK))
strcat(str,"5;");
}
if(atr&HIGH) {
if(!(curatr&HIGH))
strcat(str,"1;");
}
if((atr&0x07) != (curatr&0x07)) {
switch(atr&0x07) {
case BLACK:
strcat(str,"30;");
break;
case RED:
strcat(str,"31;");
break;
case GREEN: strcat(str,"32;");
break;
case BROWN:
strcat(str,"33;");
break;
case BLUE:
strcat(str,"34;");
break;
case MAGENTA:
strcat(str,"35;");
break;
case CYAN:
strcat(str,"36;");
break;
case LIGHTGRAY:
strcat(str,"37;");
break;
}
}
if((atr&0x70) != (curatr&0x70)) {
switch(atr&0x70) {
/* The BG_BLACK macro is 0x200, so isn't in the mask */
case 0 /* BG_BLACK */:
strcat(str,"40;");
break;
case BG_RED:
strcat(str,"41;");
break;
case BG_GREEN:
strcat(str,"42;");
break;
case BG_BROWN:
strcat(str,"43;");
break;
case BG_BLUE:
strcat(str,"44;");
break;
case BG_MAGENTA:
strcat(str,"45;");
break;
case BG_CYAN:
strcat(str,"46;");
break;
case BG_LIGHTGRAY:
strcat(str,"47;");
break;
}
}
if(strlen(str)==2) /* Convert <ESC>[ to blank */
*str=0;
else
str[strlen(str)-1]='m';
return str;
}
char* sbbs_t::ansi(int atr, int curatr, char* str)
{
return ::ansi_attr(atr, curatr, str, term_supports(COLOR) ? TRUE:FALSE);
}
void sbbs_t::ansi_getlines()
{
if(sys_status&SS_USERON && useron.misc&ANSI && !useron.rows /* Auto-detect rows */
&& online==ON_REMOTE) { /* Remote */
SYNC;
putcom("\x1b[s\x1b[255B\x1b[255C\x1b[6n\x1b[u");
inkey(K_ANSI_CPR,TIMEOUT_ANSI_GETXY*1000);
}
}
bool sbbs_t::ansi_getxy(int* x, int* y)
{
int rsp=0, ch;
*x=0;
*y=0;
putcom("\x1b[6n"); /* Request cusor position */
time_t start=time(NULL);
sys_status&=~SS_ABORT;
while(online && !(sys_status&SS_ABORT)) {
if((ch=incom(1000))!=NOINP) {
if(ch==ESC && rsp==0) {
rsp++;
start=time(NULL);
}
else if(ch=='[' && rsp==1) {
rsp++;
start=time(NULL);
}
else if(isdigit(ch) && rsp==2) {
if(y!=NULL) {
(*y)*=10;
(*y)+=(ch&0xf);
}
start=time(NULL);
}
else if(ch==';' && rsp>=2) {
rsp++;
start=time(NULL);
}
else if(isdigit(ch) && rsp==3) {
if(x!=NULL) {
(*x)*=10;
(*x)+=(ch&0xf);
}
start=time(NULL);
}
else if(ch=='R' && rsp)
break;
else
ungetkey(ch);
}
if(time(NULL)-start>TIMEOUT_ANSI_GETXY) {
lprintf(LOG_NOTICE,"Node %d !TIMEOUT in ansi_getxy", cfg.node_num);
return(false);
}
}
return(true);
}
bool sbbs_t::ansi_gotoxy(int x, int y)
{
if(term_supports(ANSI)) {
rprintf("\x1b[%d;%dH",y,x);
if(x>0)
column=x-1;
lncntr=0;
return true;
}
return false;
}
bool sbbs_t::ansi_save(void)
{
if(term_supports(ANSI)) {
rputs("\x1b[s");
return true; }
return false;
}
bool sbbs_t::ansi_restore(void)
{
if(term_supports(ANSI)) {
rputs("\x1b[u");
return true;
}
return false;
}