2 * Copyright © 2012 Adrian Johnson
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: Adrian Johnson <ajohnson@redneon.com>
27 #include "cairo-test.h"
34 /* PDF transparency groups can be isolated or non-isolated. This test
35 * checks that the PDF output is using isolated groups. If the group
36 * is non-isolated the bottom half of the inner rectangle will be
37 * red. Note poppler-cairo currently ignores the isolated flag and
38 * treats the group as isolated.
40 * Refer to http://www.pdfvt.com/PDFVT_TransparencyGuide.html for an
41 * explanation isolated vs non-isolated.
44 static cairo_test_status_t
45 draw (cairo_t *cr, int width, int height)
47 cairo_set_source_rgb (cr, 1, 1, 1);
50 cairo_set_source_rgb (cr, 1, 0.5, 0);
51 cairo_rectangle (cr, 0, SIZE/2, SIZE, SIZE/2);
54 cairo_set_operator (cr, CAIRO_OPERATOR_MULTIPLY);
56 cairo_push_group (cr);
58 cairo_set_source_rgb (cr, 0.7, 0.7, 0.7);
59 cairo_rectangle (cr, SIZE/4, SIZE/4, SIZE/2, SIZE/2);
62 cairo_pop_group_to_source (cr);
65 return CAIRO_TEST_SUCCESS;
68 CAIRO_TEST (pdf_isolated_group,
69 "Check that transparency groups in PDF output are isolated",
70 "group, operator", /* keywords */
71 NULL, /* requirements */