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-rw-r--r--test/caps-joins-curve.c111
1 files changed, 111 insertions, 0 deletions
diff --git a/test/caps-joins-curve.c b/test/caps-joins-curve.c
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+++ b/test/caps-joins-curve.c
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+/*
+ * Copyright © 2008 Chris Wilson
+ *
+ * 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
+ * Chris Wilson not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Chris Wilson makes no representations about the
+ * suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL CHRIS WILSON 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: Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#include "cairo-test.h"
+
+#define LINE_WIDTH 10.
+#define SIZE (5 * LINE_WIDTH)
+#define PAD (3 * LINE_WIDTH)
+
+static void
+make_path (cairo_t *cr)
+{
+ cairo_move_to (cr, 0, 0);
+ cairo_rel_curve_to (cr,
+ -SIZE/4, SIZE/3,
+ -SIZE/4, SIZE/3,
+ 0, SIZE);
+ cairo_rel_curve_to (cr,
+ SIZE/3, -SIZE/4,
+ SIZE/3, -SIZE/4,
+ SIZE, 0);
+ cairo_close_path (cr);
+
+ cairo_move_to (cr, 5 * LINE_WIDTH, 3 * LINE_WIDTH);
+ cairo_rel_curve_to (cr,
+ 0, -3 * LINE_WIDTH,
+ 0, -3 * LINE_WIDTH,
+ -3 * LINE_WIDTH, -3 * LINE_WIDTH);
+}
+
+static void
+draw_caps_joins (cairo_t *cr)
+{
+ cairo_save (cr);
+
+ 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_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_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);
+
+ cairo_restore (cr);
+}
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+ /* We draw in the default black, so paint white first. */
+ cairo_save (cr);
+ cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */
+ cairo_paint (cr);
+ cairo_restore (cr);
+
+ cairo_set_line_width (cr, LINE_WIDTH);
+
+ draw_caps_joins (cr);
+
+ /* and reflect to generate the opposite vertex ordering */
+ cairo_translate (cr, 0, height);
+ cairo_scale (cr, 1, -1);
+
+ draw_caps_joins (cr);
+
+ return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (caps_joins_curve,
+ "Test caps and joins on curves",
+ "stroke, cap, join", /* keywords */
+ NULL, /* requirements */
+ 3 * (PAD + SIZE) + PAD,
+ 2 * (PAD + SIZE) + PAD,
+ NULL, draw)
+