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73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
/*
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* Copyright © 2012 Adrian Johnson
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Author: Adrian Johnson <ajohnson@redneon.com>
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*/
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#include "cairo-test.h"
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#define SIZE 60
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#define WIDTH SIZE
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#define HEIGHT SIZE
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/* PDF transparency groups can be isolated or non-isolated. This test
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* checks that the PDF output is using isolated groups. If the group
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* is non-isolated the bottom half of the inner rectangle will be
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* red. Note poppler-cairo currently ignores the isolated flag and
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* treats the group as isolated.
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*
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* Refer to http://www.pdfvt.com/PDFVT_TransparencyGuide.html for an
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* explanation isolated vs non-isolated.
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*/
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static cairo_test_status_t
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draw (cairo_t *cr, int width, int height)
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{
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cairo_set_source_rgb (cr, 1, 1, 1);
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cairo_paint (cr);
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cairo_set_source_rgb (cr, 1, 0.5, 0);
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cairo_rectangle (cr, 0, SIZE/2, SIZE, SIZE/2);
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cairo_fill (cr);
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cairo_set_operator (cr, CAIRO_OPERATOR_MULTIPLY);
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cairo_push_group (cr);
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cairo_set_source_rgb (cr, 0.7, 0.7, 0.7);
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cairo_rectangle (cr, SIZE/4, SIZE/4, SIZE/2, SIZE/2);
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cairo_fill (cr);
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cairo_pop_group_to_source (cr);
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cairo_paint (cr);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (pdf_isolated_group,
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"Check that transparency groups in PDF output are isolated",
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"group, operator", /* keywords */
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NULL, /* requirements */
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WIDTH, HEIGHT,
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NULL, draw)
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