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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, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "driver.h"
printer *pr = 0;
font_pointer_list::font_pointer_list(font *f, font_pointer_list *fp)
: p(f), next(fp)
{
}
printer::printer()
: font_table(0), nfonts(0), font_list(0)
{
}
printer::~printer()
{
a_delete font_table;
while (font_list) {
font_pointer_list *tem = font_list;
font_list = font_list->next;
delete tem->p;
delete tem;
}
if (ferror(stdout) || fflush(stdout) < 0)
fatal("output error");
}
void printer::load_font(int n, const char *nm)
{
assert(n >= 0);
if (n >= nfonts) {
if (nfonts == 0) {
nfonts = 10;
if (nfonts <= n)
nfonts = n + 1;
font_table = new font *[nfonts];
for (int i = 0; i < nfonts; i++)
font_table[i] = 0;
}
else {
font **old_font_table = font_table;
int old_nfonts = nfonts;
nfonts *= 2;
if (n >= nfonts)
nfonts = n + 1;
font_table = new font *[nfonts];
for (int i = 0; i < old_nfonts; i++)
font_table[i] = old_font_table[i];
for (i = old_nfonts; i < nfonts; i++)
font_table[i] = 0;
a_delete old_font_table;
}
}
font *f = find_font(nm);
font_table[n] = f;
}
font *printer::find_font(const char *nm)
{
for (font_pointer_list *p = font_list; p; p = p->next)
if (strcmp(p->p->get_name(), nm) == 0)
return p->p;
font *f = make_font(nm);
if (!f)
fatal("sorry, I can't continue");
font_list = new font_pointer_list(f, font_list);
return f;
}
font *printer::make_font(const char *nm)
{
return font::load_font(nm);
}
void printer::end_of_line()
{
}
void printer::special(char *, const environment *)
{
}
void printer::draw(int, int *, int, const environment *)
{
}
void printer::set_ascii_char(unsigned char c, const environment *env,
int *widthp)
{
char buf[2];
buf[0] = c;
buf[1] = '\0';
set_special_char(buf, env, widthp);
}
void printer::set_special_char(const char *nm, const environment *env,
int *widthp)
{
int i = font::name_to_index(nm);
int fn = env->fontno;
if (fn < 0 || fn >= nfonts) {
error("bad font position `%1'", fn);
return;
}
font *f = font_table[fn];
if (f == 0) {
error("no font mounted at `%1'", fn);
return;
}
if (!f->contains(i)) {
if (nm[0] != '\0' && nm[1] == '\0')
error("font `%1' does not contain ascii character `%2'",
f->get_name(),
nm[0]);
else
error("font `%1' does not contain special character `%2'",
f->get_name(),
nm);
return;
}
int w = f->get_width(i, env->size);
if (widthp)
*widthp = w;
set_char(i, f, env, w);
}
void printer::set_numbered_char(int num, const environment *env, int *widthp)
{
int i = font::number_to_index(num);
int fn = env->fontno;
if (fn < 0 || fn >= nfonts) {
error("bad font position `%1'", fn);
return;
}
font *f = font_table[fn];
if (f == 0) {
error("no font mounted at `%1'", fn);
return;
}
if (!f->contains(i)) {
error("font `%1' does not contain numbered character %2",
f->get_name(),
num);
return;
}
int w = f->get_width(i, env->size);
if (widthp)
*widthp = w;
set_char(i, f, env, w);
}
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