1/* $NetBSD$ */ 2 3// -*- C++ -*- 4/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc. 5 Written by James Clark (jjc@jclark.com) 6 7This file is part of groff. 8 9groff is free software; you can redistribute it and/or modify it under 10the terms of the GNU General Public License as published by the Free 11Software Foundation; either version 2, or (at your option) any later 12version. 13 14groff is distributed in the hope that it will be useful, but WITHOUT ANY 15WARRANTY; without even the implied warranty of MERCHANTABILITY or 16FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 17for more details. 18 19You should have received a copy of the GNU General Public License along 20with groff; see the file COPYING. If not, write to the Free Software 21Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */ 22 23#include "eqn.h" 24#include "pbox.h" 25 26class mark_box : public pointer_box { 27public: 28 mark_box(box *); 29 int compute_metrics(int); 30 void output(); 31 void debug_print(); 32}; 33 34// we push down marks so that they don't interfere with spacing 35 36box *make_mark_box(box *p) 37{ 38 list_box *b = p->to_list_box(); 39 if (b != 0) { 40 b->list.p[0] = make_mark_box(b->list.p[0]); 41 return b; 42 } 43 else 44 return new mark_box(p); 45} 46 47mark_box::mark_box(box *pp) : pointer_box(pp) 48{ 49} 50 51void mark_box::output() 52{ 53 p->output(); 54} 55 56int mark_box::compute_metrics(int style) 57{ 58 int res = p->compute_metrics(style); 59 if (res) 60 error("multiple marks and lineups"); 61 printf(".nr " WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]\n", uid, p->uid); 62 printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]\n", uid, p->uid); 63 printf(".nr " DEPTH_FORMAT " \\n[" DEPTH_FORMAT "]\n", uid, p->uid); 64 printf(".nr " MARK_REG " 0\n"); 65 return FOUND_MARK; 66} 67 68void mark_box::debug_print() 69{ 70 fprintf(stderr, "mark { "); 71 p->debug_print(); 72 fprintf(stderr, " }"); 73} 74 75 76class lineup_box : public pointer_box { 77public: 78 lineup_box(box *); 79 void output(); 80 int compute_metrics(int style); 81 void debug_print(); 82}; 83 84// we push down lineups so that they don't interfere with spacing 85 86box *make_lineup_box(box *p) 87{ 88 list_box *b = p->to_list_box(); 89 if (b != 0) { 90 b->list.p[0] = make_lineup_box(b->list.p[0]); 91 return b; 92 } 93 else 94 return new lineup_box(p); 95} 96 97lineup_box::lineup_box(box *pp) : pointer_box(pp) 98{ 99} 100 101void lineup_box::output() 102{ 103 p->output(); 104} 105 106int lineup_box::compute_metrics(int style) 107{ 108 int res = p->compute_metrics(style); 109 if (res) 110 error("multiple marks and lineups"); 111 printf(".nr " WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]\n", uid, p->uid); 112 printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]\n", uid, p->uid); 113 printf(".nr " DEPTH_FORMAT " \\n[" DEPTH_FORMAT "]\n", uid, p->uid); 114 printf(".nr " MARK_REG " 0\n"); 115 return FOUND_LINEUP; 116} 117 118void lineup_box::debug_print() 119{ 120 fprintf(stderr, "lineup { "); 121 p->debug_print(); 122 fprintf(stderr, " }"); 123} 124