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-rw-r--r--libs/cairo-1.16.0/test/pdf-isolated-group.c73
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diff --git a/libs/cairo-1.16.0/test/pdf-isolated-group.c b/libs/cairo-1.16.0/test/pdf-isolated-group.c
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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)