diff options
author | sanine <sanine.not@pm.me> | 2022-10-12 12:03:23 -0500 |
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committer | sanine <sanine.not@pm.me> | 2022-10-12 12:03:23 -0500 |
commit | 530ffd0b7d3c39757b20f00716e486b5caf89aff (patch) | |
tree | 76b35fdf57317038acf6b828871f6ae25fce2ebe /libs/cairo-1.16.0/test/pdf-isolated-group.c | |
parent | 3dbe9332e47c143a237db12440f134caebd1cfbe (diff) |
add cairo
Diffstat (limited to 'libs/cairo-1.16.0/test/pdf-isolated-group.c')
-rw-r--r-- | libs/cairo-1.16.0/test/pdf-isolated-group.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/pdf-isolated-group.c b/libs/cairo-1.16.0/test/pdf-isolated-group.c new file mode 100644 index 0000000..e74a346 --- /dev/null +++ b/libs/cairo-1.16.0/test/pdf-isolated-group.c @@ -0,0 +1,73 @@ +/* + * Copyright © 2012 Adrian Johnson + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Author: Adrian Johnson <ajohnson@redneon.com> + */ + +#include "cairo-test.h" + +#define SIZE 60 +#define WIDTH SIZE +#define HEIGHT SIZE + + +/* PDF transparency groups can be isolated or non-isolated. This test + * checks that the PDF output is using isolated groups. If the group + * is non-isolated the bottom half of the inner rectangle will be + * red. Note poppler-cairo currently ignores the isolated flag and + * treats the group as isolated. + * + * Refer to http://www.pdfvt.com/PDFVT_TransparencyGuide.html for an + * explanation isolated vs non-isolated. + */ + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_set_source_rgb (cr, 1, 0.5, 0); + cairo_rectangle (cr, 0, SIZE/2, SIZE, SIZE/2); + cairo_fill (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_MULTIPLY); + + cairo_push_group (cr); + + cairo_set_source_rgb (cr, 0.7, 0.7, 0.7); + cairo_rectangle (cr, SIZE/4, SIZE/4, SIZE/2, SIZE/2); + cairo_fill (cr); + + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (pdf_isolated_group, + "Check that transparency groups in PDF output are isolated", + "group, operator", /* keywords */ + NULL, /* requirements */ + WIDTH, HEIGHT, + NULL, draw) |