Point
_frdraw(Frame *f, Point pt)
{
Frbox *b;
int nb, n;
for(b=f->box,nb=0; nb<f->nbox; nb++, b++) {
_frcklinewrap0(f, &pt, b);
if(pt.y == f->r.max.y) {
f->nchars -= _frstrlen(f, nb);
_frdelbox(f, nb, f->nbox-1);
break;
}
if(b->nrune > 0) {
n = _frcanfit(f, pt, b);
if(n == 0)
drawerror(f->display, "_frcanfit==0");
if(n != b->nrune) {
_frsplitbox(f, nb, n);
b = &f->box[nb];
}
pt.x += b->wid;
} else {
if(b->bc == '\n') {
pt.x = f->r.min.x;
pt.y+=f->font->height;
} else
pt.x += _frnewwid(f, pt, b);
}
}
return pt;
}
int
_frfindbox(Frame *f, int bn, ulong p, ulong q) /* find box containing q and put q on a box boundary */
{
Frbox *b;
for(b = &f->box[bn]; bn<f->nbox && p+NRUNE(b)<=q; bn++, b++)
p += NRUNE(b);
if(p != q)
_frsplitbox(f, bn++, (int)(q-p));
return bn;
}
