2 * Copyright © 2006 Jeff Muizelaar
4 * Permission to use, copy, modify, distribute, and sell this software
5 * and its documentation for any purpose is hereby granted without
6 * fee, provided that the above copyright notice appear in all copies
7 * and that both that copyright notice and this permission notice
8 * appear in supporting documentation, and that the name of
9 * Jeff Muizelaar. not be used in advertising or publicity pertaining to
10 * distribution of the software without specific, written prior
11 * permission. Jeff Muizelaar. makes no representations about the
12 * suitability of this software for any purpose. It is provided "as
13 * is" without express or implied warranty.
15 * JEFF MUIZELAAR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
16 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
17 * FITNESS, IN NO EVENT SHALL JEFF MUIZELAAR BE LIABLE FOR ANY SPECIAL,
18 * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
19 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
20 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
21 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23 * Author: Jeff Muizelaar <jeff@infidigm.net>
26 #include "cairo-test.h"
28 #define IMAGE_WIDTH 19
29 #define IMAGE_HEIGHT 61
31 /* A test of the two extremes of dashing: a solid line
32 * and an invisible one. Also test that capping works
37 draw_dash (cairo_t *cr, double *dash, int num_dashes)
39 cairo_set_dash (cr, dash, num_dashes, 0.0);
40 cairo_move_to (cr, 1, 2);
41 cairo_line_to (cr, 18, 2);
43 cairo_translate (cr, 0, 3);
45 static cairo_test_status_t
46 draw (cairo_t *cr, int width, int height)
48 static double solid_line[] = { 4, 0 };
49 static double invisible_line[] = { 0, 4 };
50 static double dotted_line[] = { 0, 6 };
51 static double zero_1_of_3[] = { 0, 2, 3 };
52 static double zero_2_of_3[] = { 1, 0, 3 };
53 static double zero_3_of_3[] = { 1, 2, 0 };
54 static double zero_1_of_4[] = { 0, 2, 3, 4 };
55 static double zero_2_of_4[] = { 1, 0, 3, 4 };
56 static double zero_3_of_4[] = { 1, 2, 0, 4 };
57 static double zero_4_of_4[] = { 1, 2, 3, 0 };
58 static double zero_1_2_of_4[] = { 0, 0, 3, 4 };
59 static double zero_1_3_of_4[] = { 0, 2, 0, 4 };
60 /* Clearly it would be nice to draw this one as well, but it seems to trigger a bug in ghostscript. */
61 #if BUG_FIXED_IN_GHOSTSCRIPT
62 static double zero_1_4_of_4[] = { 0, 2, 3, 0 };
64 static double zero_2_3_of_4[] = { 1, 0, 0, 4 };
65 static double zero_2_4_of_4[] = { 1, 0, 3, 0 };
66 static double zero_3_4_of_4[] = { 1, 2, 0, 0 };
67 static double zero_1_2_3_of_4[] = { 0, 0, 0, 4 };
68 static double zero_1_2_4_of_4[] = { 0, 0, 3, 0 };
69 static double zero_1_3_4_of_4[] = { 0, 2, 0, 0 };
70 static double zero_2_3_4_of_4[] = { 1, 0, 0, 0 };
72 cairo_set_source_rgb (cr, 1, 0, 0);
73 cairo_set_line_width (cr, 2);
75 draw_dash (cr, solid_line, 2);
76 draw_dash (cr, invisible_line, 2);
78 cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
79 draw_dash (cr, dotted_line, 2);
80 cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
82 draw_dash (cr, zero_1_of_3, 3);
83 draw_dash (cr, zero_2_of_3, 3);
84 draw_dash (cr, zero_3_of_3, 3);
85 draw_dash (cr, zero_1_of_4, 4);
86 draw_dash (cr, zero_2_of_4, 4);
87 draw_dash (cr, zero_3_of_4, 4);
88 draw_dash (cr, zero_4_of_4, 4);
89 draw_dash (cr, zero_1_2_of_4, 4);
90 draw_dash (cr, zero_1_3_of_4, 4);
91 #if BUG_FIXED_IN_GHOSTSCRIPT
92 draw_dash (cr, zero_1_4_of_4, 4);
94 draw_dash (cr, zero_2_3_of_4, 4);
95 draw_dash (cr, zero_2_4_of_4, 4);
96 draw_dash (cr, zero_3_4_of_4, 4);
97 draw_dash (cr, zero_1_2_3_of_4, 4);
98 draw_dash (cr, zero_1_2_4_of_4, 4);
99 draw_dash (cr, zero_1_3_4_of_4, 4);
100 draw_dash (cr, zero_2_3_4_of_4, 4);
102 return CAIRO_TEST_SUCCESS;
105 CAIRO_TEST (dash_zero_length,
106 "Tests cairo_set_dash with zero length",
107 "dash, stroke", /* keywords */
108 NULL, /* requirements */
109 IMAGE_WIDTH, IMAGE_HEIGHT,