1 /*
2 * Copyright © 2005 Red Hat, Inc.
3 *
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 * Red Hat, Inc. not be used in advertising or publicity pertaining to
10 * distribution of the software without specific, written prior
11 * permission. Red Hat, Inc. makes no representations about the
12 * suitability of this software for any purpose. It is provided "as
13 * is" without express or implied warranty.
14 *
15 * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
16 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
17 * FITNESS, IN NO EVENT SHALL RED HAT, INC. 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.
22 *
23 * Author: Carl Worth <cworth@cworth.org>
24 */
25
26 #include "cairo-test.h"
27
28 #define WIDTH 45
29 #define HEIGHT 30
30
31 static void
draw_L_shape(cairo_t * cr)32 draw_L_shape (cairo_t *cr)
33 {
34 cairo_move_to (cr, 0, 0);
35 cairo_rel_line_to (cr, 0, 10);
36 cairo_rel_line_to (cr, 5, 0);
37
38 cairo_save (cr);
39 cairo_identity_matrix (cr);
40 cairo_set_line_width (cr, 2.0);
41 cairo_stroke (cr);
42 cairo_restore (cr);
43 }
44
45 static cairo_test_status_t
draw(cairo_t * cr,int width,int height)46 draw (cairo_t *cr, int width, int height)
47 {
48 /* We draw in the default black, so paint white first. */
49 cairo_save (cr);
50 cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */
51 cairo_paint (cr);
52 cairo_restore (cr);
53
54 cairo_translate (cr, 5, 5);
55
56 draw_L_shape (cr);
57
58 cairo_translate (cr, 10, 0);
59
60 cairo_save (cr);
61 {
62 cairo_scale (cr, 2, 2);
63 draw_L_shape (cr);
64 }
65 cairo_restore (cr);
66
67 cairo_translate (cr, 15, 0);
68
69 cairo_save (cr);
70 {
71 cairo_rotate (cr, M_PI / 2.0);
72 draw_L_shape (cr);
73 }
74 cairo_restore (cr);
75
76 cairo_translate (cr, 5, 0);
77
78 cairo_save (cr);
79 {
80 cairo_matrix_t skew_y = {
81 1, -1,
82 0, 1,
83 0, 0
84 };
85 cairo_transform (cr, &skew_y);
86 draw_L_shape (cr);
87 }
88 cairo_restore (cr);
89
90 cairo_translate (cr, 5, 10);
91
92 cairo_save (cr);
93 {
94 cairo_matrix_t skew_x = {
95 1.0, 0.0,
96 -0.5, 1.0,
97 0.0, 0.0
98 };
99 cairo_transform (cr, &skew_x);
100 draw_L_shape (cr);
101 }
102 cairo_restore (cr);
103
104 return CAIRO_TEST_SUCCESS;
105 }
106
107 CAIRO_TEST (transforms,
108 "Test various transformations.",
109 "transforms, api", /* keywords */
110 NULL, /* requirements */
111 WIDTH, HEIGHT,
112 NULL, draw)
113