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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/*
* Copyright © 2005 Red Hat, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* Red Hat, Inc. not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Red Hat, Inc. makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: Carl D. Worth <cworth@cworth.org>
*/
#include "cairo-test.h"
#define LINE_WIDTH 10.
#define SIZE (5 * LINE_WIDTH)
#define PAD (2 * LINE_WIDTH)
static void
make_path (cairo_t *cr)
{
cairo_move_to (cr, 0., 0.);
cairo_rel_line_to (cr, 0., SIZE);
cairo_rel_line_to (cr, SIZE, 0.);
cairo_close_path (cr);
cairo_move_to (cr, 5 * LINE_WIDTH, 3 * LINE_WIDTH);
cairo_rel_line_to (cr, 0., -3 * LINE_WIDTH);
cairo_rel_line_to (cr, -3 * LINE_WIDTH, 0.);
}
static void
draw_caps_joins (cairo_t *cr)
{
cairo_save (cr);
cairo_translate (cr, PAD, PAD);
make_path (cr);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL);
cairo_stroke (cr);
cairo_translate (cr, SIZE + PAD, 0.);
make_path (cr);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
cairo_stroke (cr);
cairo_translate (cr, SIZE + PAD, 0.);
make_path (cr);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER);
cairo_stroke (cr);
cairo_restore (cr);
}
static cairo_test_status_t
draw (cairo_t *cr, float line_width)
{
/* We draw in the default black, so paint white first. */
cairo_save (cr);
cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */
cairo_paint (cr);
cairo_restore (cr);
cairo_set_line_width (cr, line_width);
draw_caps_joins (cr);
/* and reflect to generate the opposite vertex ordering */
cairo_translate (cr, 0, 2 * (PAD + SIZE) + PAD);
cairo_scale (cr, 1, -1);
draw_caps_joins (cr);
return CAIRO_TEST_SUCCESS;
}
static cairo_test_status_t
draw_10 (cairo_t *cr, int width, int height)
{
return draw (cr, LINE_WIDTH);
}
static cairo_test_status_t
draw_2 (cairo_t *cr, int width, int height)
{
return draw (cr, 2.0);
}
static cairo_test_status_t
draw_1 (cairo_t *cr, int width, int height)
{
return draw (cr, 1.0);
}
static cairo_test_status_t
draw_05 (cairo_t *cr, int width, int height)
{
return draw (cr, 0.5);
}
CAIRO_TEST (caps_joins,
"Test caps and joins",
"stroke", /* keywords */
NULL, /* requirements */
3 * (PAD + SIZE) + PAD,
2 * (PAD + SIZE) + PAD,
NULL, draw_10)
CAIRO_TEST (caps_joins_2,
"Test caps and joins with default line width",
"stroke", /* keywords */
NULL, /* requirements */
3 * (PAD + SIZE) + PAD,
2 * (PAD + SIZE) + PAD,
NULL, draw_2)
CAIRO_TEST (caps_joins_1,
"Test caps and joins with hairlines",
"stroke", /* keywords */
NULL, /* requirements */
3 * (PAD + SIZE) + PAD,
2 * (PAD + SIZE) + PAD,
NULL, draw_1)
CAIRO_TEST (caps_joins_05,
"Test caps and joins with fine lines",
"stroke", /* keywords */
NULL, /* requirements */
3 * (PAD + SIZE) + PAD,
2 * (PAD + SIZE) + PAD,
NULL, draw_05)
|
