2 /* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
3 Written by James Clark (jjc@jclark.com)
5 This file is part of groff.
7 groff is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 groff is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License along
18 with groff; see the file COPYING. If not, write to the Free Software
19 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 class common_output : public output {
23 void dash_line(const position &start, const position &end,
24 const line_type <, double dash_width, double gap_width,
26 void dash_arc(const position ¢, double rad,
27 double start_angle, double end_angle, const line_type <,
28 double dash_width, double gap_width, double *offsetp);
29 void dot_line(const position &start, const position &end,
30 const line_type <, double gap_width, double *offsetp);
31 void dot_arc(const position ¢, double rad,
32 double start_angle, double end_angle, const line_type <,
33 double gap_width, double *offsetp);
35 virtual void dot(const position &, const line_type &) = 0;
36 void dashed_circle(const position &, double rad, const line_type &);
37 void dotted_circle(const position &, double rad, const line_type &);
38 void dashed_arc(const position &, const position &, const position &,
40 void dotted_arc(const position &, const position &, const position &,
42 virtual void solid_arc(const position ¢, double rad, double start_angle,
43 double end_angle, const line_type <);
44 void dashed_rounded_box(const position &, const distance &, double,
46 void dotted_rounded_box(const position &, const distance &, double,
48 void solid_rounded_box(const position &, const distance &, double,
50 void filled_rounded_box(const position &, const distance &, double, double);
52 void start_picture(double sc, const position &ll, const position &ur) = 0;
53 void finish_picture() = 0;
54 void circle(const position &, double rad, const line_type &, double) = 0;
55 void text(const position &, text_piece *, int, double) = 0;
56 void line(const position &, const position *, int n, const line_type &) = 0;
57 void polygon(const position *, int n, const line_type &, double) = 0;
58 void spline(const position &, const position *, int n,
59 const line_type &) = 0;
60 void arc(const position &, const position &, const position &,
61 const line_type &) = 0;
62 void ellipse(const position &, const distance &,
63 const line_type &, double) = 0;
64 void rounded_box(const position &, const distance &, double,
65 const line_type &, double);
66 void set_color(char *, char *) = 0;
67 void reset_color() = 0;
68 char *get_last_filled() = 0;
69 char *get_outline_color() = 0;
72 int compute_arc_center(const position &start, const position ¢,
73 const position &end, position *result);