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-rw-r--r--test/caps-joins-alpha.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/test/caps-joins-alpha.c b/test/caps-joins-alpha.c
new file mode 100644
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+++ b/test/caps-joins-alpha.c
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+/*
+ * Copyright © 2005 Red Hat, Inc.
+ * Copyright © 2006 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without
+ * fee, provided that the above copyright notice appear in all copies
+ * and that both that copyright notice and this permission notice
+ * appear in supporting documentation, and that the name of
+ * Red Hat, Inc. not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Red Hat, Inc. makes no representations about the
+ * suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
+ * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+ * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author: Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairo-test.h"
+
+#define LINE_WIDTH 10.
+#define SIZE (5 * LINE_WIDTH)
+#define PAD (2 * LINE_WIDTH)
+
+static void
+make_path (cairo_t *cr)
+{
+ cairo_move_to (cr, 0., 0.);
+ cairo_rel_line_to (cr, 0., SIZE);
+ cairo_rel_line_to (cr, SIZE, 0.);
+ cairo_close_path (cr);
+
+ cairo_move_to (cr, 2 * LINE_WIDTH, 0.);
+ cairo_rel_line_to (cr, 3 * LINE_WIDTH, 0.);
+ cairo_rel_line_to (cr, 0., 3 * LINE_WIDTH);
+}
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+ /* First draw a checkered background */
+ cairo_test_paint_checkered (cr);
+
+ /* Then draw the original caps-joins test but with a bit of alphs thrown in. */
+ cairo_set_line_width (cr, LINE_WIDTH);
+
+ cairo_set_source_rgba (cr, 1.0, 0.0, 0.0, 0.5); /* 50% red */
+ cairo_translate (cr, PAD, PAD);
+
+ make_path (cr);
+ cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
+ cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL);
+ cairo_stroke (cr);
+
+ cairo_set_source_rgba (cr, 0.0, 1.0, 0.0, 0.5); /* 50% green */
+ cairo_translate (cr, SIZE + PAD, 0.);
+
+ make_path (cr);
+ cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
+ cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
+ cairo_stroke (cr);
+
+ cairo_set_source_rgba (cr, 0.0, 0.0, 1.0, 0.5); /* 50% blue */
+
+ cairo_translate (cr, SIZE + PAD, 0.);
+
+ make_path (cr);
+ cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE);
+ cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER);
+ cairo_stroke (cr);
+
+ return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (caps_joins_alpha,
+ "Test caps and joins with some source alpha",
+ "stroke", /* keywords */
+ NULL, /* requirements */
+ 3 * (PAD + SIZE) + PAD,
+ PAD + SIZE + PAD,
+ NULL, draw)