testsuite: Add tests for the dasher
This commit is contained in:
Benjamin Otte
committed by
Matthias Clasen
Matthias Clasen
parent
4a596fe5bf
commit
d537df1f62
@@ -25,6 +25,7 @@
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G_BEGIN_DECLS
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GDK_AVAILABLE_IN_ALL
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gboolean gsk_path_dash (GskPath *path,
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GskStroke *stroke,
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float tolerance,
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181
testsuite/gsk/dash.c
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181
testsuite/gsk/dash.c
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@@ -0,0 +1,181 @@
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/*
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* Copyright © 2020 Benjamin Otte
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Benjamin Otte <otte@gnome.org>
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*/
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#include <gtk/gtk.h>
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#include "gsk/gskpathdashprivate.h"
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static gboolean
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build_path (GskPathOperation op,
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const graphene_point_t *pts,
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gsize n_pts,
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float weight,
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gpointer user_data)
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{
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GskPathBuilder *builder = user_data;
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switch (op)
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{
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case GSK_PATH_MOVE:
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gsk_path_builder_move_to (builder, pts[0].x, pts[0].y);
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break;
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case GSK_PATH_CLOSE:
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gsk_path_builder_close (builder);
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break;
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case GSK_PATH_LINE:
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gsk_path_builder_line_to (builder, pts[1].x, pts[1].y);
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break;
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case GSK_PATH_CURVE:
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gsk_path_builder_curve_to (builder, pts[1].x, pts[1].y, pts[2].x, pts[2].y, pts[3].x, pts[3].y);
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break;
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case GSK_PATH_CONIC:
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gsk_path_builder_conic_to (builder, pts[1].x, pts[1].y, pts[2].x, pts[2].y, weight);
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break;
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default:
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g_assert_not_reached ();
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break;
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}
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return TRUE;
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}
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static void
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test_simple (void)
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{
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const struct {
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const char *test;
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float dash[4];
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gsize n_dash;
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float dash_offset;
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const char *result;
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} tests[] = {
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/* a line with a dash of a quarter its size, very simple test */
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{
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"M 0 0 L 20 0",
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{ 5, }, 1, 0.f,
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"M 0 0 L 5 0 M 10 0 L 15 0",
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},
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/* a square with a dash of half its size, another simple test */
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{
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"M 0 0 h 10 v 10 h -10 z",
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{ 5, }, 1, 0.f,
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"M 10 0 L 10 5 M 10 10 L 5 10 M 0 10 L 0 5 M 0 0 L 5 0"
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},
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/* a square smaller than the dash, make sure it closes */
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{
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"M 0 0 h 10 v 10 h -10 z",
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{ 50, }, 1, 0.f,
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"M 0 0 L 10 0 L 10 10 L 0 10 Z"
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},
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/* a square exactly the dash's size, make sure it still closes */
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{
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"M 0 0 h 10 v 10 h -10 z",
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{ 40, }, 1, 0.f,
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"M 0 0 L 10 0 L 10 10 L 0 10 Z"
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},
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/* a dash with offset */
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{
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"M 0 0 h 10 v 10 h -10 z",
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{ 5, }, 1, 2.5f,
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"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"
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},
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/* a dash with offset, but this time the rect isn't closed */
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{
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"M 0 0 L 10 0 L 10 10 L 0 10 L 0 0",
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{ 5, }, 1, 2.5f,
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"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"
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},
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/* a dash with offset into an empty dash */
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{
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"M 0 0 h 10 v 10 h -10 z",
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{ 5, }, 1, 7.5f,
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"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"
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},
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/* a dash with offset where the whole rectangle fits into one element - make sure it closes */
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{
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"M 0 0 h 10 v 10 h -10 z",
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{ 1, 1, 100 }, 3, 3.f,
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"M 0 0 L 10 0 L 10 10 L 0 10 Z"
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},
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/* a dash with 0-length elements, aka dotting */
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{
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"M 0 0 h 10 v 10 h -10 z",
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{ 0, 5 }, 2, 0.f,
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"M 5 0 M 10 0 M 10 5 M 10 10 M 5 10 M 0 10 M 0 5 M 0 0"
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},
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/* a dash of a circle */
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{
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"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",
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{ 32, }, 1, 0.f,
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"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",
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},
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/* a dash with offset and 2 contours */
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{
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"M 10 10 h 10 v 10 h -10 z M 20 20 h 10 v 10 h -10 z",
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{ 5, }, 1, 2.5f,
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"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 "
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"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"
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},
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};
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GskPath *path, *result;
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GskPathBuilder *builder;
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GskStroke *stroke;
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char *s;
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for (gsize i = 0; i < G_N_ELEMENTS(tests); i++)
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{
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stroke = gsk_stroke_new (1);
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gsk_stroke_set_dash (stroke, tests[i].dash, tests[i].n_dash);
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gsk_stroke_set_dash_offset (stroke, tests[i].dash_offset);
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path = gsk_path_parse (tests[i].test);
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g_assert_nonnull (path);
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s = gsk_path_to_string (path);
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g_assert_cmpstr (s, ==, tests[i].test);
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g_free (s);
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builder = gsk_path_builder_new ();
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gsk_path_dash (path, stroke, 0.5, build_path, builder);
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result = gsk_path_builder_free_to_path (builder);
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s = gsk_path_to_string (result);
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g_assert_cmpstr (s, ==, tests[i].result);
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g_free (s);
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gsk_path_unref (result);
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gsk_stroke_free (stroke);
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gsk_path_unref (path);
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}
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}
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int
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main (int argc,
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char *argv[])
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{
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gtk_test_init (&argc, &argv, NULL);
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g_test_add_func ("/dash/simple", test_simple);
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return g_test_run ();
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}
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@@ -210,6 +210,7 @@ endforeach
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tests = [
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['curve', ['../../gsk/gskcurve.c'], ['-DGTK_COMPILATION']],
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['curve-special-cases', ['../../gsk/gskcurve.c'], ['-DGTK_COMPILATION']],
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['dash'],
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['path'],
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['path-special-cases'],
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['rounded-rect'],
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