diff options
Diffstat (limited to 'contrib/groff/src/libs/libdriver/printer.cpp')
| -rw-r--r-- | contrib/groff/src/libs/libdriver/printer.cpp | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/contrib/groff/src/libs/libdriver/printer.cpp b/contrib/groff/src/libs/libdriver/printer.cpp new file mode 100644 index 000000000000..179daf1781d0 --- /dev/null +++ b/contrib/groff/src/libs/libdriver/printer.cpp @@ -0,0 +1,214 @@ +// -*- C++ -*- + +// <groff_src_dir>/src/libs/libdriver/printer.cpp + +/* Copyright (C) 1989, 1990, 1991, 1992, 2001, 2002, 2003 + Free Software Foundation, Inc. + Written by James Clark (jjc@jclark.com) + + Last update: 04 Apr 2003 + + 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 "driver.h" + +font_pointer_list::font_pointer_list(font *f, font_pointer_list *fp) +: p(f), next(fp) +{ +} + +printer::printer() +: font_list(0), font_table(0), nfonts(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]; + int i; + for (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 *, char) +{ +} + +void printer::draw(int, int *, int, const environment *) +{ +} + +void printer::change_color(const environment * const) +{ +} + +void printer::change_fill_color(const environment * const) +{ +} + +void printer::set_ascii_char(unsigned char c, const environment *env, + int *widthp) +{ + char buf[2]; + int w; + font *f; + + buf[0] = c; + buf[1] = '\0'; + + int i = set_char_and_width(buf, env, &w, &f); + set_char(i, f, env, w, 0); + if (widthp) { + *widthp = w; + } +} + +void printer::set_special_char(const char *nm, const environment *env, + int *widthp) +{ + font *f; + int w; + int i = set_char_and_width(nm, env, &w, &f); + if (i != -1) { + set_char(i, f, env, w, nm); + if (widthp) + *widthp = w; + } +} + +int printer::set_char_and_width(const char *nm, const environment *env, + int *widthp, font **f) +{ + int i = font::name_to_index(nm); + int fn = env->fontno; + if (fn < 0 || fn >= nfonts) { + error("bad font position `%1'", fn); + return(-1); + } + *f = font_table[fn]; + if (*f == 0) { + error("no font mounted at `%1'", fn); + return(-1); + } + 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(-1); + } + int w = (*f)->get_width(i, env->size); + if (widthp) + *widthp = w; + return( i ); +} + +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, 0); +} + +font *printer::get_font_from_index(int fontno) +{ + if ((fontno >= 0) && (fontno < nfonts)) + return(font_table[fontno]); + else + return(0); +} |