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/*
* 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)
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