1// -*- C++ -*- 2/* Copyright (C) 1989, 1990, 1991, 1992, 2001 Free Software Foundation, Inc. 3 Written by James Clark (jjc@jclark.com) 4 5This file is part of groff. 6 7groff is free software; you can redistribute it and/or modify it under 8the terms of the GNU General Public License as published by the Free 9Software Foundation; either version 2, or (at your option) any later 10version. 11 12groff is distributed in the hope that it will be useful, but WITHOUT ANY 13WARRANTY; without even the implied warranty of MERCHANTABILITY or 14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15for more details. 16 17You should have received a copy of the GNU General Public License along 18with groff; see the file COPYING. If not, write to the Free Software 19Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */ 20 21struct line_type { 22 enum { invisible, solid, dotted, dashed } type; 23 double dash_width; 24 double thickness; // the thickness is in points 25 26 line_type(); 27}; 28 29 30class output { 31protected: 32 char *args; 33 double desired_height; // zero if no height specified 34 double desired_width; // zero if no depth specified 35 double compute_scale(double, const position &, const position &); 36public: 37 output(); 38 virtual ~output(); 39 void set_desired_width_height(double wid, double ht); 40 void set_args(const char *); 41 virtual void start_picture(double sc, const position &ll, const position &ur) = 0; 42 virtual void finish_picture() = 0; 43 virtual void circle(const position &, double rad, 44 const line_type &, double) = 0; 45 virtual void text(const position &, text_piece *, int, double) = 0; 46 virtual void line(const position &, const position *, int n, 47 const line_type &) = 0; 48 virtual void polygon(const position *, int n, 49 const line_type &, double) = 0; 50 virtual void spline(const position &, const position *, int n, 51 const line_type &) = 0; 52 virtual void arc(const position &, const position &, const position &, 53 const line_type &) = 0; 54 virtual void ellipse(const position &, const distance &, 55 const line_type &, double) = 0; 56 virtual void rounded_box(const position &, const distance &, double, 57 const line_type &, double) = 0; 58 virtual void command(const char *, const char *, int) = 0; 59 virtual void set_location(const char *, int) {} 60 virtual void set_color(char *, char *) = 0; 61 virtual void reset_color() = 0; 62 virtual char *get_last_filled() = 0; 63 virtual char *get_outline_color() = 0; 64 virtual int supports_filled_polygons(); 65 virtual void begin_block(const position &ll, const position &ur); 66 virtual void end_block(); 67}; 68 69extern output *out; 70 71/* #define FIG_SUPPORT 1 */ 72#define TEX_SUPPORT 1 73 74output *make_troff_output(); 75 76#ifdef TEX_SUPPORT 77output *make_tex_output(); 78output *make_tpic_output(); 79#endif /* TEX_SUPPORT */ 80 81#ifdef FIG_SUPPORT 82output *make_fig_output(); 83#endif /* FIG_SUPPORT */ 84