2 * Copyright © 2008 Red Hat, Inc.
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 * Author: Carl D. Worth <cworth@cworth.org>
29 * 2008-05-23: Caolan McNamara noticed a bug in OpenOffice.org where,
30 * when using a very large font, space would be left for a
31 * glyph but it would actually be rendered in the wrong
32 * place. He wrote a minimal test case and posted the bug
35 * corrupt glyph positions with large font
36 * https://bugzilla.redhat.com/show_bug.cgi?id=448104
38 * 2008-05-23: Carl Worth wrote this test for the cairo test suite to
42 #include "cairo-test.h"
46 #define TEXT_SIZE 10000
48 static cairo_test_status_t
49 draw (cairo_t *cr, int width, int height)
51 /* paint white so we don't need separate ref images for
53 cairo_set_source_rgb (cr, 1., 1., 1.);
56 cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans",
57 CAIRO_FONT_SLANT_NORMAL,
58 CAIRO_FONT_WEIGHT_NORMAL);
59 cairo_set_font_size (cr, TEXT_SIZE);
61 cairo_set_source_rgb (cr, 0, 0, 0);
62 cairo_move_to (cr, -TEXT_SIZE / 2, TEXT_SIZE / 2);
63 cairo_show_text (cr, "xW");
65 return CAIRO_TEST_SUCCESS;
68 CAIRO_TEST (large_font,
69 "Draws a very large font to exercise a glyph-positioning bug",
70 "stress, font", /* keywords */
71 NULL, /* requirements */