2 /* Copyright (C) 1989, 1990, 1991, 1992, 1993, 2003, 2007, 2009
3 Free Software Foundation, Inc.
4 Written by James Clark (jjc@jclark.com)
6 This file is part of groff.
8 groff is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 groff is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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 ellipse_arc(const position &, const position &,
37 const position &, const distance &,
39 void dashed_circle(const position &, double rad, const line_type &);
40 void dotted_circle(const position &, double rad, const line_type &);
41 void dashed_ellipse(const position &, const distance &, const line_type &);
42 void dotted_ellipse(const position &, const distance &, const line_type &);
43 void dashed_arc(const position &, const position &, const position &,
45 void dotted_arc(const position &, const position &, const position &,
47 virtual void solid_arc(const position ¢, double rad, double start_angle,
48 double end_angle, const line_type <);
49 void dashed_rounded_box(const position &, const distance &, double,
51 void dotted_rounded_box(const position &, const distance &, double,
53 void solid_rounded_box(const position &, const distance &, double,
55 void filled_rounded_box(const position &, const distance &, double,
58 void start_picture(double sc, const position &ll, const position &ur) = 0;
59 void finish_picture() = 0;
60 void circle(const position &, double rad, const line_type &, double) = 0;
61 void text(const position &, text_piece *, int, double) = 0;
62 void line(const position &, const position *, int n, const line_type &) = 0;
63 void polygon(const position *, int n, const line_type &, double) = 0;
64 void spline(const position &, const position *, int n,
65 const line_type &) = 0;
66 void arc(const position &, const position &, const position &,
67 const line_type &) = 0;
68 void ellipse(const position &, const distance &,
69 const line_type &, double) = 0;
70 void rounded_box(const position &, const distance &, double,
71 const line_type &, double, char *);
72 void set_color(char *, char *) = 0;
73 void reset_color() = 0;
74 char *get_last_filled() = 0;
75 char *get_outline_color() = 0;
78 int compute_arc_center(const position &start, const position ¢,
79 const position &end, position *result);