Function selection_setpoint

src/selvar.c:180–208

}

void
selection_setpoint(
    coordxy x, coordxy y,
    struct selectionvar *sel,
    int c)
{
    if (!sel || !sel->map)
        return;
    if (x < 0 || y < 0 || x >= sel->wid || y >= sel->hei)
        return;

    if (c && !sel->bounds_dirty) {
        if (sel->bounds.lx > x)
            sel->bounds.lx = x;
        if (sel->bounds.ly > y)
            sel->bounds.ly = y;
        if (sel->bounds.hx < x)
            sel->bounds.hx = x;
        if (sel->bounds.hy < y)
            sel->bounds.hy = y;

    /* only set bounds_dirty if changing a point from 1 to 0; if changing
       a point from 0 to 0, nothing has really changed with the bounds */
    } else if (sel->map[sel->wid * y + x] != 0) {
        sel->bounds_dirty = TRUE;
    }

    sel->map[sel->wid * y + x] = (char) (c + 1);
}

struct selectionvar *
selection_not(struct selectionvar *s)