2 * Copyright © 2006 Red Hat, Inc.
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.
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.
23 * Author: Carl D. Worth <cworth@cworth.org>
26 #include "cairo-test.h"
33 draw_square (cairo_t *cr)
42 static cairo_test_status_t
43 draw (cairo_t *cr, int width, int height)
45 cairo_surface_t *surface, *target;
48 /* First draw a shape in blue on the original destination. */
49 cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
52 /* Then, create an offset surface and repeat the drawing in red. */
53 target = cairo_get_group_target (cr);
54 surface = cairo_surface_create_similar (target,
55 cairo_surface_get_content (target),
57 cairo_surface_set_device_offset (surface, - SIZE / 2, - SIZE / 2);
58 cr2 = cairo_create (surface);
59 cairo_surface_destroy (surface);
61 cairo_set_source_rgb (cr2, 1, 0, 0); /* red */
65 /* Finally, copy the offset surface to the original destination.
66 * The final result should be a blue square with the lower-right
68 cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0);
74 return CAIRO_TEST_SUCCESS;
77 CAIRO_TEST (device_offset,
78 "Simple test using a surface with a negative device-offset as a source.",
79 "device-offset", /* keywords */
80 NULL, /* requirements */