2 * Copyright 2008 Chris Wilson
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 * Chris Wilson not be used in advertising or publicity pertaining to
10 * distribution of the software without specific, written prior
11 * permission. Chris Wilson 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 * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
16 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
17 * FITNESS, IN NO EVENT SHALL CHRIS WILSON 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: Chris Wilson <chris@chris-wilson.co.uk>
26 #include "cairo-test.h"
28 static cairo_test_status_t
29 draw (cairo_t *cr, int width, int height)
32 "This needs to be a very long string, wider than the surface, and yet wider."
33 "Ideally it should overflow the stack buffers, but do you really want to read "
34 "a message that long. No. So we compromise with around 300 glyphs that is "
35 "long enough to trigger the conditions as stated in "
36 "http://lists.cairographics.org/archives/cairo/2008-December/015976.html. "
38 cairo_text_extents_t extents;
40 cairo_set_source_rgb (cr, 1, 1, 1);
42 cairo_set_source_rgb (cr, 0, 0, 0);
44 cairo_set_font_size (cr, 16);
45 cairo_text_extents (cr, text, &extents);
46 cairo_move_to (cr, -extents.width/2, 18);
47 cairo_show_text (cr, text);
49 /* XXX we should exercise cairo_show_text_glyphs() as well,
50 * and CAIRO_TEXT_CLUSTER_BACKWARDS
53 return CAIRO_TEST_SUCCESS;
56 CAIRO_TEST (culled_glyphs,
57 "Tests culling of glyphs and text clusters",
58 "glyphs", /* keywords */
59 NULL, /* requirements */