1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
// -*- C++ -*-
/* Copyright (C) 1989-2020 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 3 of the License, 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 this program. If not, see <http://www.gnu.org/licenses/>. */
struct line_type {
enum { invisible, solid, dotted, dashed } type;
double dash_width;
double thickness; // the thickness is in points
line_type();
};
class output {
protected:
char *args;
double desired_height; // zero if no height specified
double desired_width; // zero if no depth specified
double compute_scale(double, const position &, const position &);
public:
output();
virtual ~output();
void set_desired_width_height(double wid, double ht);
void set_args(const char *);
virtual void start_picture(double sc, const position &ll, const position &ur) = 0;
virtual void finish_picture() = 0;
virtual void circle(const position &, double rad,
const line_type &, double) = 0;
virtual void text(const position &, text_piece *, int, double) = 0;
virtual void line(const position &, const position *, int n,
const line_type &) = 0;
virtual void polygon(const position *, int n,
const line_type &, double) = 0;
virtual void spline(const position &, const position *, int n,
const line_type &) = 0;
virtual void arc(const position &, const position &, const position &,
const line_type &) = 0;
virtual void ellipse(const position &, const distance &,
const line_type &, double) = 0;
virtual void rounded_box(const position &, const distance &, double,
const line_type &, double, char *) = 0;
virtual void command(const char *, const char *, int) = 0;
virtual void set_location(const char *, int) {}
virtual void set_color(char *, char *) = 0;
virtual void reset_color() = 0;
virtual char *get_last_filled() = 0;
virtual char *get_outline_color() = 0;
virtual int supports_filled_polygons();
virtual void begin_block(const position &ll, const position &ur);
virtual void end_block();
};
extern output *out;
/* #define FIG_SUPPORT 1 */
#define TEX_SUPPORT 1
output *make_troff_output();
#ifdef TEX_SUPPORT
output *make_tex_output();
output *make_tpic_output();
#endif /* TEX_SUPPORT */
#ifdef FIG_SUPPORT
output *make_fig_output();
#endif /* FIG_SUPPORT */
|
