602 lines
14 KiB
C++
602 lines
14 KiB
C++
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// -*- C++ -*-
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/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
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Written by James Clark (jjc@jclark.com)
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This file is part of groff.
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groff is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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groff is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License along
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with groff; see the file COPYING. If not, write to the Free Software
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Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "eqn.h"
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#include "pbox.h"
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class accent_box : public pointer_box {
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private:
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box *ab;
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public:
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accent_box(box *, box *);
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~accent_box();
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int compute_metrics(int);
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void output();
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void debug_print();
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void check_tabs(int);
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};
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box *make_accent_box(box *p, box *q)
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{
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return new accent_box(p, q);
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}
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accent_box::accent_box(box *pp, box *qq) : ab(qq), pointer_box(pp)
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{
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}
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accent_box::~accent_box()
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{
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delete ab;
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}
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#if 0
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int accent_box::compute_metrics(int style)
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{
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int r = p->compute_metrics(style);
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p->compute_skew();
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ab->compute_metrics(style);
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printf(".nr " WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]\n", uid, p->uid);
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printf(".nr " DEPTH_FORMAT " \\n[" DEPTH_FORMAT "]\n", uid, p->uid);
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printf(".nr " SUP_RAISE_FORMAT " \\n[" HEIGHT_FORMAT "]-%dM>?0\n",
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uid, p->uid, x_height);
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printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]+\\n["
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SUP_RAISE_FORMAT "]\n",
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uid, ab->uid, uid);
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return r;
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}
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void accent_box::output()
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{
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printf("\\h'\\n[" WIDTH_FORMAT "]u-\\n[" WIDTH_FORMAT "]u/2u+\\n["
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SKEW_FORMAT "]u'",
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p->uid, ab->uid, p->uid);
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printf("\\v'-\\n[" SUP_RAISE_FORMAT "]u'", uid);
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ab->output();
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printf("\\h'-\\n[" WIDTH_FORMAT "]u'", ab->uid);
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printf("\\v'\\n[" SUP_RAISE_FORMAT "]u'", uid);
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printf("\\h'-(\\n[" WIDTH_FORMAT "]u-\\n[" WIDTH_FORMAT "]u/2u+\\n["
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SKEW_FORMAT "]u)'",
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p->uid, ab->uid, p->uid);
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p->output();
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}
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#endif
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/* This version copes with the possibility of an accent's being wider
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than its accentee. LEFT_WIDTH_FORMAT gives the distance from the
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left edge of the resulting box to the middle of the accentee's box.*/
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int accent_box::compute_metrics(int style)
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{
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int r = p->compute_metrics(style);
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p->compute_skew();
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ab->compute_metrics(style);
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printf(".nr " LEFT_WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]/2"
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">?(\\n[" WIDTH_FORMAT "]/2-\\n[" SKEW_FORMAT "])\n",
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uid, p->uid, ab->uid, p->uid);
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printf(".nr " WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]/2"
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">?(\\n[" WIDTH_FORMAT "]/2+\\n[" SKEW_FORMAT "])"
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"+\\n[" LEFT_WIDTH_FORMAT "]\n",
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uid, p->uid, ab->uid, p->uid, uid);
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printf(".nr " DEPTH_FORMAT " \\n[" DEPTH_FORMAT "]\n", uid, p->uid);
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printf(".nr " SUP_RAISE_FORMAT " \\n[" HEIGHT_FORMAT "]-%dM>?0\n",
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uid, p->uid, x_height);
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printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]+\\n["
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SUP_RAISE_FORMAT "]\n",
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uid, ab->uid, uid);
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if (r)
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printf(".nr " MARK_REG " +\\n[" LEFT_WIDTH_FORMAT "]"
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"-(\\n[" WIDTH_FORMAT "]/2)'\n",
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uid, p->uid);
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return r;
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}
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void accent_box::output()
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{
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printf("\\Z" DELIMITER_CHAR);
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printf("\\h'\\n[" LEFT_WIDTH_FORMAT "]u+\\n[" SKEW_FORMAT "]u"
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"-(\\n[" WIDTH_FORMAT "]u/2u)'",
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uid, p->uid, ab->uid);
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printf("\\v'-\\n[" SUP_RAISE_FORMAT "]u'", uid);
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ab->output();
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printf(DELIMITER_CHAR);
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printf("\\Z" DELIMITER_CHAR);
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printf("\\h'\\n[" LEFT_WIDTH_FORMAT "]u-(\\n[" WIDTH_FORMAT "]u/2u)'",
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uid, p->uid);
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p->output();
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printf(DELIMITER_CHAR);
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printf("\\h'\\n[" WIDTH_FORMAT "]u'", uid);
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}
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void accent_box::check_tabs(int level)
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{
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ab->check_tabs(level + 1);
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p->check_tabs(level + 1);
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}
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void accent_box::debug_print()
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{
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fprintf(stderr, "{ ");
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p->debug_print();
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fprintf(stderr, " } accent { ");
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ab->debug_print();
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fprintf(stderr, " }");
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}
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class overline_char_box : public simple_box {
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public:
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overline_char_box();
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void output();
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void debug_print();
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};
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overline_char_box::overline_char_box()
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{
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}
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void overline_char_box::output()
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{
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printf("\\v'-%dM/2u-%dM'", 7*default_rule_thickness, x_height);
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printf((draw_flag ? "\\D'l%dM 0'" : "\\l'%dM\\&\\(ru'"),
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accent_width);
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printf("\\v'%dM/2u+%dM'", 7*default_rule_thickness, x_height);
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}
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void overline_char_box::debug_print()
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{
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fprintf(stderr, "<overline char>");
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}
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class overline_box : public pointer_box {
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public:
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overline_box(box *);
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int compute_metrics(int);
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void output();
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void debug_print();
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};
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box *make_overline_box(box *p)
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{
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if (p->is_char())
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return new accent_box(p, new overline_char_box);
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else
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return new overline_box(p);
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}
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overline_box::overline_box(box *pp) : pointer_box(pp)
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{
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}
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int overline_box::compute_metrics(int style)
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{
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int r = p->compute_metrics(cramped_style(style));
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// 9
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printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]+%dM\n",
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uid, p->uid, default_rule_thickness*5);
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printf(".nr " WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]\n", uid, p->uid);
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printf(".nr " DEPTH_FORMAT " \\n[" DEPTH_FORMAT "]\n", uid, p->uid);
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return r;
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}
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void overline_box::output()
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{
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// 9
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printf("\\Z" DELIMITER_CHAR);
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printf("\\v'-\\n[" HEIGHT_FORMAT "]u-(%dM/2u)'",
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p->uid, 7*default_rule_thickness);
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if (draw_flag)
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printf("\\D'l\\n[" WIDTH_FORMAT "]u 0'", p->uid);
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else
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printf("\\l'\\n[" WIDTH_FORMAT "]u\\&\\(ru'", p->uid);
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printf(DELIMITER_CHAR);
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p->output();
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}
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void overline_box::debug_print()
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{
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fprintf(stderr, "{ ");
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p->debug_print();
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fprintf(stderr, " } bar");
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}
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class uaccent_box : public pointer_box {
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box *ab;
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public:
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uaccent_box(box *, box *);
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~uaccent_box();
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int compute_metrics(int);
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void output();
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void compute_subscript_kern();
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void check_tabs(int);
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void debug_print();
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};
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box *make_uaccent_box(box *p, box *q)
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{
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return new uaccent_box(p, q);
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}
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uaccent_box::uaccent_box(box *pp, box *qq)
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: pointer_box(pp), ab(qq)
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{
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}
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uaccent_box::~uaccent_box()
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{
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delete ab;
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}
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int uaccent_box::compute_metrics(int style)
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{
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int r = p->compute_metrics(style);
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ab->compute_metrics(style);
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printf(".nr " LEFT_WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]/2"
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">?(\\n[" WIDTH_FORMAT "]/2)\n",
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uid, p->uid, ab->uid);
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printf(".nr " WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]/2"
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">?(\\n[" WIDTH_FORMAT "]/2)"
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"+\\n[" LEFT_WIDTH_FORMAT "]\n",
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uid, p->uid, ab->uid, uid);
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printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]\n", uid, p->uid);
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printf(".nr " DEPTH_FORMAT " \\n[" DEPTH_FORMAT "]"
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"+\\n[" DEPTH_FORMAT "]\n",
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uid, p->uid, ab->uid);
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if (r)
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printf(".nr " MARK_REG " +\\n[" LEFT_WIDTH_FORMAT "]"
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"-(\\n[" WIDTH_FORMAT "]/2)'\n",
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uid, p->uid);
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return r;
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}
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void uaccent_box::output()
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{
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printf("\\Z" DELIMITER_CHAR);
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printf("\\h'\\n[" LEFT_WIDTH_FORMAT "]u-(\\n[" WIDTH_FORMAT "]u/2u)'",
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uid, ab->uid);
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printf("\\v'\\n[" DEPTH_FORMAT "]u'", p->uid);
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ab->output();
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printf(DELIMITER_CHAR);
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printf("\\Z" DELIMITER_CHAR);
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printf("\\h'\\n[" LEFT_WIDTH_FORMAT "]u-(\\n[" WIDTH_FORMAT "]u/2u)'",
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uid, p->uid);
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p->output();
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printf(DELIMITER_CHAR);
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printf("\\h'\\n[" WIDTH_FORMAT "]u'", uid);
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}
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void uaccent_box::check_tabs(int level)
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{
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ab->check_tabs(level + 1);
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p->check_tabs(level + 1);
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}
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void uaccent_box::compute_subscript_kern()
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{
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box::compute_subscript_kern(); // want 0 subscript kern
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}
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void uaccent_box::debug_print()
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{
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fprintf(stderr, "{ ");
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p->debug_print();
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fprintf(stderr, " } uaccent { ");
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ab->debug_print();
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fprintf(stderr, " }");
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}
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class underline_char_box : public simple_box {
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public:
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underline_char_box();
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void output();
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void debug_print();
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};
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underline_char_box::underline_char_box()
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{
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}
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void underline_char_box::output()
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{
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printf("\\v'%dM/2u'", 7*default_rule_thickness);
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printf((draw_flag ? "\\D'l%dM 0'" : "\\l'%dM\\&\\(ru'"),
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accent_width);
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printf("\\v'-%dM/2u'", 7*default_rule_thickness);
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}
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void underline_char_box::debug_print()
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{
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fprintf(stderr, "<underline char>");
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}
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class underline_box : public pointer_box {
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public:
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underline_box(box *);
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int compute_metrics(int);
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void output();
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void compute_subscript_kern();
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void debug_print();
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};
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box *make_underline_box(box *p)
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{
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if (p->is_char())
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return new uaccent_box(p, new underline_char_box);
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else
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return new underline_box(p);
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}
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underline_box::underline_box(box *pp) : pointer_box(pp)
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{
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}
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int underline_box::compute_metrics(int style)
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{
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int r = p->compute_metrics(style);
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// 10
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printf(".nr " DEPTH_FORMAT " \\n[" DEPTH_FORMAT "]+%dM\n",
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uid, p->uid, default_rule_thickness*5);
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printf(".nr " WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]\n", uid, p->uid);
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printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]\n", uid, p->uid);
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return r;
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}
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void underline_box::output()
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{
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// 10
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printf("\\Z" DELIMITER_CHAR);
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printf("\\v'\\n[" DEPTH_FORMAT "]u+(%dM/2u)'",
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p->uid, 7*default_rule_thickness);
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if (draw_flag)
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printf("\\D'l\\n[" WIDTH_FORMAT "]u 0'", p->uid);
|
||
|
|
else
|
||
|
|
printf("\\l'\\n[" WIDTH_FORMAT "]u\\&\\(ru'", p->uid);
|
||
|
|
printf(DELIMITER_CHAR);
|
||
|
|
p->output();
|
||
|
|
}
|
||
|
|
|
||
|
|
// we want an underline box to have 0 subscript kern
|
||
|
|
|
||
|
|
void underline_box::compute_subscript_kern()
|
||
|
|
{
|
||
|
|
box::compute_subscript_kern();
|
||
|
|
}
|
||
|
|
|
||
|
|
void underline_box::debug_print()
|
||
|
|
{
|
||
|
|
fprintf(stderr, "{ ");
|
||
|
|
p->debug_print();
|
||
|
|
fprintf(stderr, " } under");
|
||
|
|
}
|
||
|
|
|
||
|
|
size_box::size_box(char *s, box *pp) : size(s), pointer_box(pp)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
int size_box::compute_metrics(int style)
|
||
|
|
{
|
||
|
|
printf(".nr " SIZE_FORMAT " \\n[.s]\n", uid);
|
||
|
|
printf(".ps %s\n", size);
|
||
|
|
printf(".nr " SMALL_SIZE_FORMAT " \\n[.s]\n", uid);
|
||
|
|
int r = p->compute_metrics(style);
|
||
|
|
printf(".ps \\n[" SIZE_FORMAT "]\n", uid);
|
||
|
|
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);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
void size_box::output()
|
||
|
|
{
|
||
|
|
printf("\\s[\\n[" SMALL_SIZE_FORMAT "]]", uid);
|
||
|
|
p->output();
|
||
|
|
printf("\\s[\\n[" SIZE_FORMAT "]]", uid);
|
||
|
|
}
|
||
|
|
|
||
|
|
size_box::~size_box()
|
||
|
|
{
|
||
|
|
a_delete size;
|
||
|
|
}
|
||
|
|
|
||
|
|
void size_box::debug_print()
|
||
|
|
{
|
||
|
|
fprintf(stderr, "size %s { ", size);
|
||
|
|
p->debug_print();
|
||
|
|
fprintf(stderr, " }");
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
font_box::font_box(char *s, box *pp) : pointer_box(pp), f(s)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
font_box::~font_box()
|
||
|
|
{
|
||
|
|
a_delete f;
|
||
|
|
}
|
||
|
|
|
||
|
|
int font_box::compute_metrics(int style)
|
||
|
|
{
|
||
|
|
const char *old_roman_font = current_roman_font;
|
||
|
|
current_roman_font = f;
|
||
|
|
printf(".nr " FONT_FORMAT " \\n[.f]\n", uid);
|
||
|
|
printf(".ft %s\n", f);
|
||
|
|
int r = p->compute_metrics(style);
|
||
|
|
current_roman_font = old_roman_font;
|
||
|
|
printf(".ft \\n[" FONT_FORMAT "]\n", uid);
|
||
|
|
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);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
void font_box::output()
|
||
|
|
{
|
||
|
|
printf("\\f[%s]", f);
|
||
|
|
const char *old_roman_font = current_roman_font;
|
||
|
|
current_roman_font = f;
|
||
|
|
p->output();
|
||
|
|
current_roman_font = old_roman_font;
|
||
|
|
printf("\\f[\\n[" FONT_FORMAT "]]", uid);
|
||
|
|
}
|
||
|
|
|
||
|
|
void font_box::debug_print()
|
||
|
|
{
|
||
|
|
fprintf(stderr, "font %s { ", f);
|
||
|
|
p->debug_print();
|
||
|
|
fprintf(stderr, " }");
|
||
|
|
}
|
||
|
|
|
||
|
|
fat_box::fat_box(box *pp) : pointer_box(pp)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
int fat_box::compute_metrics(int style)
|
||
|
|
{
|
||
|
|
int r = p->compute_metrics(style);
|
||
|
|
printf(".nr " WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]+%dM\n",
|
||
|
|
uid, p->uid, fat_offset);
|
||
|
|
printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]\n", uid, p->uid);
|
||
|
|
printf(".nr " DEPTH_FORMAT " \\n[" DEPTH_FORMAT "]\n", uid, p->uid);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
void fat_box::output()
|
||
|
|
{
|
||
|
|
p->output();
|
||
|
|
printf("\\h'-\\n[" WIDTH_FORMAT "]u'", p->uid);
|
||
|
|
printf("\\h'%dM'", fat_offset);
|
||
|
|
p->output();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void fat_box::debug_print()
|
||
|
|
{
|
||
|
|
fprintf(stderr, "fat { ");
|
||
|
|
p->debug_print();
|
||
|
|
fprintf(stderr, " }");
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
vmotion_box::vmotion_box(int i, box *pp) : n(i), pointer_box(pp)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
int vmotion_box::compute_metrics(int style)
|
||
|
|
{
|
||
|
|
int r = p->compute_metrics(style);
|
||
|
|
printf(".nr " WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]\n", uid, p->uid);
|
||
|
|
if (n > 0) {
|
||
|
|
printf(".nr " HEIGHT_FORMAT " %dM+\\n[" HEIGHT_FORMAT "]\n",
|
||
|
|
uid, n, p->uid);
|
||
|
|
printf(".nr " DEPTH_FORMAT " \\n[" DEPTH_FORMAT "]\n", uid, p->uid);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
printf(".nr " DEPTH_FORMAT " %dM+\\n[" DEPTH_FORMAT "]>?0\n",
|
||
|
|
uid, -n, p->uid);
|
||
|
|
printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]\n",
|
||
|
|
uid, p->uid);
|
||
|
|
}
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
void vmotion_box::output()
|
||
|
|
{
|
||
|
|
printf("\\v'%dM'", -n);
|
||
|
|
p->output();
|
||
|
|
printf("\\v'%dM'", n);
|
||
|
|
}
|
||
|
|
|
||
|
|
void vmotion_box::debug_print()
|
||
|
|
{
|
||
|
|
if (n >= 0)
|
||
|
|
fprintf(stderr, "up %d { ", n);
|
||
|
|
else
|
||
|
|
fprintf(stderr, "down %d { ", -n);
|
||
|
|
p->debug_print();
|
||
|
|
fprintf(stderr, " }");
|
||
|
|
}
|
||
|
|
|
||
|
|
hmotion_box::hmotion_box(int i, box *pp) : n(i), pointer_box(pp)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
int hmotion_box::compute_metrics(int style)
|
||
|
|
{
|
||
|
|
int r = p->compute_metrics(style);
|
||
|
|
printf(".nr " WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]+%dM\n",
|
||
|
|
uid, p->uid, n);
|
||
|
|
printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]\n", uid, p->uid);
|
||
|
|
printf(".nr " DEPTH_FORMAT " \\n[" DEPTH_FORMAT "]\n", uid, p->uid);
|
||
|
|
if (r)
|
||
|
|
printf(".nr " MARK_REG " +%dM\n", n);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
void hmotion_box::output()
|
||
|
|
{
|
||
|
|
printf("\\h'%dM'", n);
|
||
|
|
p->output();
|
||
|
|
}
|
||
|
|
|
||
|
|
void hmotion_box::debug_print()
|
||
|
|
{
|
||
|
|
if (n >= 0)
|
||
|
|
fprintf(stderr, "fwd %d { ", n);
|
||
|
|
else
|
||
|
|
fprintf(stderr, "back %d { ", -n);
|
||
|
|
p->debug_print();
|
||
|
|
fprintf(stderr, " }");
|
||
|
|
}
|
||
|
|
|
||
|
|
vcenter_box::vcenter_box(box *pp) : pointer_box(pp)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
int vcenter_box::compute_metrics(int style)
|
||
|
|
{
|
||
|
|
int r = p->compute_metrics(style);
|
||
|
|
printf(".nr " WIDTH_FORMAT " 0\\n[" WIDTH_FORMAT "]\n", uid, p->uid);
|
||
|
|
printf(".nr " SUP_RAISE_FORMAT " \\n[" DEPTH_FORMAT "]-\\n["
|
||
|
|
HEIGHT_FORMAT "]/2+%dM\n",
|
||
|
|
uid, p->uid, p->uid, axis_height);
|
||
|
|
printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]+\\n["
|
||
|
|
SUP_RAISE_FORMAT "]>?0\n", uid, p->uid, uid);
|
||
|
|
printf(".nr " DEPTH_FORMAT " \\n[" DEPTH_FORMAT "]-\\n["
|
||
|
|
SUP_RAISE_FORMAT "]>?0\n", uid, p->uid, uid);
|
||
|
|
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
void vcenter_box::output()
|
||
|
|
{
|
||
|
|
printf("\\v'-\\n[" SUP_RAISE_FORMAT "]u'", uid);
|
||
|
|
p->output();
|
||
|
|
printf("\\v'\\n[" SUP_RAISE_FORMAT "]u'", uid);
|
||
|
|
}
|
||
|
|
|
||
|
|
void vcenter_box::debug_print()
|
||
|
|
{
|
||
|
|
fprintf(stderr, "vcenter { ");
|
||
|
|
p->debug_print();
|
||
|
|
fprintf(stderr, " }");
|
||
|
|
}
|
||
|
|
|