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#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "libtmt/tmt.h"
void hackvr_draw_character(int c,int r,const TMTCHAR *ch) {
int s;
int i;
FILE *fp;
char str[16];
char line[256];//whatever
snprintf(str,sizeof(str)-1,"%02x",ch->c);
if((fp=fopen("font","r")) == NULL ) {
printf("# fail to open font\n");
return;
}
for(i=0;fgets(line,sizeof(line)-1,fp) != 0;i++) {
if(!strncmp(str,line,2)) {
printf("term_%02d_%02d addshape %d %s",c,r,ch->a.fg==-1?2:ch->a.fg-1,line+strlen("XX addshape X "));
}
}
if(i) printf("term_%02d_%02d move %d %d 0\n",c,r,c*5,-r*9);
fclose(fp);
}
void callback(tmt_msg_t m,TMT *vt, const void *a,void *vt_old) {
static int cr_old=0;
static int cc_old=0;
const TMTSCREEN *s_old=tmt_screen(vt_old);
const TMTSCREEN *s=tmt_screen(vt);
const TMTPOINT *c=tmt_cursor(vt);
const TMTCHAR *ch;
switch(m) {
case TMT_MSG_BELL:
printf("term set global.beep\n");
break;
case TMT_MSG_UPDATE:
for (size_t r = 0; r < s->nline; r++){
if (s->lines[r]->dirty){
for (size_t c = 0; c < s->ncol; c++){
if(memcmp(&(s->lines[r]->chars[c]),&(s_old->lines[r]->chars[c]),sizeof(TMTCHAR))) {
ch=&(s->lines[r]->chars[c]);
printf("term_%02d_%02d deletegroup term_%02d_%02d\n",c,r,c,r);
hackvr_draw_character(c,r,ch);
memcpy(&(s_old->lines[r]->chars[c]),&(s->lines[r]->chars[c]),sizeof(TMTCHAR));
}
}
}
}
break;
case TMT_MSG_ANSWER://what does this do?
fprintf(stderr,"# MSG_ANSWER: %s\n",a);
break;
case TMT_MSG_MOVED:
printf("cursor move %d %d 0\n", (c->c - cc_old) * 5, - (c->r - cr_old) * 9);//calculate relative movement needed based on previous and current positions.
cr_old=c->r;
cc_old=c->c;
break;
case TMT_MSG_CURSOR:
if(!strcmp(a,"t")) {
printf("cursor deletegroup cursor\n");//just delete it and redraw the cursor.
printf("cursor addshape 2 4 0 -2 0 4 -2 0 4 6 0 0 6 0\n");//let's pretend this is how cursors should be.
printf("cursor move %d %d 0\n",c->c * 5,-c->r * 9);
}
if(!strcmp(a,"f")) {
printf("cursor deletegroup cursor\n");
cr_old=0;
cc_old=0;
}
break;
default:
fprintf(stderr,"unhandled message type: %d\n",m);
}
return;
}
int main(int argc,char *argv[]) {
char in[16];
if(argc < 3) return fprintf(stderr,"usage: ./hackvr_term rows cols\n"),1;
int r=atoi(argv[2]);
int ret=0;
int c=atoi(argv[1]);
setbuf(stdin,0);
setbuf(stdout,0);
TMT *vt_old = tmt_open(r,c,NULL,NULL,NULL);
if(!vt_old) return fprintf(stderr,"failed to open tmt's virtual terminal for storage"),1;
TMT *vt = tmt_open(r,c,callback,vt_old,NULL);
if(!vt) return fprintf(stderr,"failed to open tmt's virtual terminal"),1;
//read from stdin and write to terminal.
while((ret=read(0,in,16)) != 0) {//16 bytes at a time work?
if(ret == -1) {
if(errno == EAGAIN) continue;
break;
}
tmt_write(vt,in,ret);
}
tmt_close(vt);
return 0;
}
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