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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. */
-
- struct environment {
- int fontno;
- int size;
- int hpos;
- int vpos;
- int height;
- int slant;
- };
-
- struct font;
-
- struct font_pointer_list {
- font *p;
- font_pointer_list *next;
-
- font_pointer_list(font *, font_pointer_list *);
- };
-
- class printer {
- public:
- printer();
- virtual ~printer();
- void load_font(int i, const char *name);
- void set_ascii_char(unsigned char c, const environment *env,
- int *widthp = 0);
- void set_special_char(const char *nm, const environment *env,
- int *widthp = 0);
- void set_numbered_char(int n, const environment *env, int *widthp = 0);
- virtual void draw(int code, int *p, int np, const environment *env);
- virtual void begin_page(int) = 0;
- virtual void end_page(int page_length) = 0;
- virtual font *make_font(const char *nm);
- virtual void end_of_line();
- virtual void special(char *arg, const environment *env);
- static int adjust_arc_center(const int *, double *);
- protected:
- font_pointer_list *font_list;
- private:
- font **font_table;
- int nfonts;
- font *find_font(const char *);
- virtual void set_char(int index, font *f, const environment *env,
- int w) = 0;
- };
-
- printer *make_printer();
-