[gtk/wip/otte/lottie: 335/339] testsuite: Add tests for the dasher
- From: Benjamin Otte <otte src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gtk/wip/otte/lottie: 335/339] testsuite: Add tests for the dasher
- Date: Thu, 17 Dec 2020 00:34:56 +0000 (UTC)
commit 4fec6385964df42ca171c1c7f357f061ed4df80d
Author: Benjamin Otte <otte redhat com>
Date: Thu Dec 10 17:51:08 2020 +0100
testsuite: Add tests for the dasher
gsk/gskpathdashprivate.h | 1 +
testsuite/gsk/dash.c | 181 ++++++++++++++++++++++++++++++++++++++++++++++
testsuite/gsk/meson.build | 1 +
3 files changed, 183 insertions(+)
---
diff --git a/gsk/gskpathdashprivate.h b/gsk/gskpathdashprivate.h
index 4e1734f572..07f390d21c 100644
--- a/gsk/gskpathdashprivate.h
+++ b/gsk/gskpathdashprivate.h
@@ -25,6 +25,7 @@
G_BEGIN_DECLS
+GDK_AVAILABLE_IN_ALL
gboolean gsk_path_dash (GskPath *path,
GskStroke *stroke,
float tolerance,
diff --git a/testsuite/gsk/dash.c b/testsuite/gsk/dash.c
new file mode 100644
index 0000000000..93655f20fc
--- /dev/null
+++ b/testsuite/gsk/dash.c
@@ -0,0 +1,181 @@
+/*
+ * Copyright © 2020 Benjamin Otte
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Benjamin Otte <otte gnome org>
+ */
+
+#include <gtk/gtk.h>
+
+#include "gsk/gskpathdashprivate.h"
+
+static gboolean
+build_path (GskPathOperation op,
+ const graphene_point_t *pts,
+ gsize n_pts,
+ float weight,
+ gpointer user_data)
+{
+ GskPathBuilder *builder = user_data;
+
+ switch (op)
+ {
+ case GSK_PATH_MOVE:
+ gsk_path_builder_move_to (builder, pts[0].x, pts[0].y);
+ break;
+
+ case GSK_PATH_CLOSE:
+ gsk_path_builder_close (builder);
+ break;
+
+ case GSK_PATH_LINE:
+ gsk_path_builder_line_to (builder, pts[1].x, pts[1].y);
+ break;
+
+ case GSK_PATH_CURVE:
+ gsk_path_builder_curve_to (builder, pts[1].x, pts[1].y, pts[2].x, pts[2].y, pts[3].x, pts[3].y);
+ break;
+
+ case GSK_PATH_CONIC:
+ gsk_path_builder_conic_to (builder, pts[1].x, pts[1].y, pts[2].x, pts[2].y, weight);
+ break;
+
+ default:
+ g_assert_not_reached ();
+ break;
+ }
+
+ return TRUE;
+}
+
+static void
+test_simple (void)
+{
+ const struct {
+ const char *test;
+ float dash[4];
+ gsize n_dash;
+ float dash_offset;
+ const char *result;
+ } tests[] = {
+ /* a line with a dash of a quarter its size, very simple test */
+ {
+ "M 0 0 L 20 0",
+ { 5, }, 1, 0.f,
+ "M 0 0 L 5 0 M 10 0 L 15 0",
+ },
+ /* a square with a dash of half its size, another simple test */
+ {
+ "M 0 0 h 10 v 10 h -10 z",
+ { 5, }, 1, 0.f,
+ "M 10 0 L 10 5 M 10 10 L 5 10 M 0 10 L 0 5 M 0 0 L 5 0"
+ },
+ /* a square smaller than the dash, make sure it closes */
+ {
+ "M 0 0 h 10 v 10 h -10 z",
+ { 50, }, 1, 0.f,
+ "M 0 0 L 10 0 L 10 10 L 0 10 Z"
+ },
+ /* a square exactly the dash's size, make sure it still closes */
+ {
+ "M 0 0 h 10 v 10 h -10 z",
+ { 40, }, 1, 0.f,
+ "M 0 0 L 10 0 L 10 10 L 0 10 Z"
+ },
+ /* a dash with offset */
+ {
+ "M 0 0 h 10 v 10 h -10 z",
+ { 5, }, 1, 2.5f,
+ "M 7.5 0 L 10 0 L 10 2.5 M 10 7.5 L 10 10 L 7.5 10 M 2.5 10 L 0 10 L 0 7.5 M 0 2.5 L 0 0 L 2.5 0"
+ },
+ /* a dash with offset, but this time the rect isn't closed */
+ {
+ "M 0 0 L 10 0 L 10 10 L 0 10 L 0 0",
+ { 5, }, 1, 2.5f,
+ "M 0 0 L 2.5 0 M 7.5 0 L 10 0 L 10 2.5 M 10 7.5 L 10 10 L 7.5 10 M 2.5 10 L 0 10 L 0 7.5 M 0 2.5 L 0 0"
+ },
+ /* a dash with offset into an empty dash */
+ {
+ "M 0 0 h 10 v 10 h -10 z",
+ { 5, }, 1, 7.5f,
+ "M 2.5 0 L 7.5 0 M 10 2.5 L 10 7.5 M 7.5 10 L 2.5 10 M 0 7.5 L 0 2.5"
+ },
+ /* a dash with offset where the whole rectangle fits into one element - make sure it closes */
+ {
+ "M 0 0 h 10 v 10 h -10 z",
+ { 1, 1, 100 }, 3, 3.f,
+ "M 0 0 L 10 0 L 10 10 L 0 10 Z"
+ },
+ /* a dash with 0-length elements, aka dotting */
+ {
+ "M 0 0 h 10 v 10 h -10 z",
+ { 0, 5 }, 2, 0.f,
+ "M 5 0 M 10 0 M 10 5 M 10 10 M 5 10 M 0 10 M 0 5 M 0 0"
+ },
+ /* a dash of a circle */
+ {
+ "M 10 5 O 10 10, 5 10, 0.70710676908493042 O 0 10, 0 5, 0.70710676908493042 O 0 0, 5 0,
0.70710676908493042 O 10 0, 10 5, 0.70710676908493042 Z",
+ { 32, }, 1, 0.f,
+ "M 10 5 O 10 10, 5 10, 0.70710676908493042 O 0 10, 0 5, 0.70710676908493042 O 0 0, 5 0,
0.70710676908493042 O 10 0, 10 5, 0.70710676908493042 Z",
+ },
+ /* a dash with offset and 2 contours */
+ {
+ "M 10 10 h 10 v 10 h -10 z M 20 20 h 10 v 10 h -10 z",
+ { 5, }, 1, 2.5f,
+ "M 17.5 10 L 20 10 L 20 12.5 M 20 17.5 L 20 20 L 17.5 20 M 12.5 20 L 10 20 L 10 17.5 M 10 12.5 L 10 10
L 12.5 10 "
+ "M 27.5 20 L 30 20 L 30 22.5 M 30 27.5 L 30 30 L 27.5 30 M 22.5 30 L 20 30 L 20 27.5 M 20 22.5 L 20 20
L 22.5 20"
+ },
+ };
+ GskPath *path, *result;
+ GskPathBuilder *builder;
+ GskStroke *stroke;
+ char *s;
+
+ for (gsize i = 0; i < G_N_ELEMENTS(tests); i++)
+ {
+ stroke = gsk_stroke_new (1);
+ gsk_stroke_set_dash (stroke, tests[i].dash, tests[i].n_dash);
+ gsk_stroke_set_dash_offset (stroke, tests[i].dash_offset);
+
+ path = gsk_path_parse (tests[i].test);
+ g_assert_nonnull (path);
+ s = gsk_path_to_string (path);
+ g_assert_cmpstr (s, ==, tests[i].test);
+ g_free (s);
+
+ builder = gsk_path_builder_new ();
+ gsk_path_dash (path, stroke, 0.5, build_path, builder);
+ result = gsk_path_builder_free_to_path (builder);
+
+ s = gsk_path_to_string (result);
+ g_assert_cmpstr (s, ==, tests[i].result);
+ g_free (s);
+
+ gsk_path_unref (result);
+ gsk_stroke_free (stroke);
+ gsk_path_unref (path);
+ }
+}
+
+int
+main (int argc,
+ char *argv[])
+{
+ gtk_test_init (&argc, &argv, NULL);
+
+ g_test_add_func ("/dash/simple", test_simple);
+
+ return g_test_run ();
+}
diff --git a/testsuite/gsk/meson.build b/testsuite/gsk/meson.build
index a73b006b5f..44f30495fc 100644
--- a/testsuite/gsk/meson.build
+++ b/testsuite/gsk/meson.build
@@ -195,6 +195,7 @@ endforeach
tests = [
['curve', ['../../gsk/gskcurve.c'], ['-DGTK_COMPILATION']],
['curve-special-cases', ['../../gsk/gskcurve.c'], ['-DGTK_COMPILATION']],
+ ['dash'],
['path'],
['path-special-cases'],
['rounded-rect'],
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