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// -*- C++ -*-
/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
Written by James Clark (jjc@jclark.com)
This file is part of groff.
groff is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
groff is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with groff; see the file COPYING. If not, write to the Free Software
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "eqn.h"
#include "pbox.h"
class mark_box : public pointer_box {
public:
mark_box(box *);
int compute_metrics(int);
void output();
void debug_print();
};
// we push down marks so that they don't interfere with spacing
box *make_mark_box(box *p)
{
list_box *b = p->to_list_box();
if (b != 0) {
b->list.p[0] = make_mark_box(b->list.p[0]);
return b;
}
else
return new mark_box(p);
}
mark_box::mark_box(box *pp) : pointer_box(pp)
{
}
void mark_box::output()
{
p->output();
}
int mark_box::compute_metrics(int style)
{
int res = p->compute_metrics(style);
if (res)
error("multiple marks and lineups");
printf(".nr " WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]\n", uid, p->uid);
printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]\n", uid, p->uid);
printf(".nr " DEPTH_FORMAT " \\n[" DEPTH_FORMAT "]\n", uid, p->uid);
printf(".nr " MARK_REG " 0\n");
return FOUND_MARK;
}
void mark_box::debug_print()
{
fprintf(stderr, "mark { ");
p->debug_print();
fprintf(stderr, " }");
}
class lineup_box : public pointer_box {
public:
lineup_box(box *);
void output();
int compute_metrics(int style);
void debug_print();
};
// we push down lineups so that they don't interfere with spacing
box *make_lineup_box(box *p)
{
list_box *b = p->to_list_box();
if (b != 0) {
b->list.p[0] = make_lineup_box(b->list.p[0]);
return b;
}
else
return new lineup_box(p);
}
lineup_box::lineup_box(box *pp) : pointer_box(pp)
{
}
void lineup_box::output()
{
p->output();
}
int lineup_box::compute_metrics(int style)
{
int res = p->compute_metrics(style);
if (res)
error("multiple marks and lineups");
printf(".nr " WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]\n", uid, p->uid);
printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]\n", uid, p->uid);
printf(".nr " DEPTH_FORMAT " \\n[" DEPTH_FORMAT "]\n", uid, p->uid);
printf(".nr " MARK_REG " 0\n");
return FOUND_LINEUP;
}
void lineup_box::debug_print()
{
fprintf(stderr, "lineup { ");
p->debug_print();
fprintf(stderr, " }");
}
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