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Add tests for winding number of custom contours

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Check that rects and circles wind the right way.
This commit is contained in:
Matthias Clasen
2020-12-06 20:02:43 -05:00
parent 411a98c6eb
commit 75e4c6a74e
1 changed files with 114 additions and 0 deletions
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114
testsuite/gsk/path-special-cases.c
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@@ -306,6 +306,115 @@ test_serialize_custom_contours (void)
gsk_path_unref (path1);
}
static void
test_in_fill_rect1 (void)
{
GskPathBuilder *builder;
GskPath *path;
GskPathMeasure *measure;
builder = gsk_path_builder_new ();
gsk_path_builder_add_rect (builder, &GRAPHENE_RECT_INIT (0, 0, 100, 100));
path = gsk_path_builder_free_to_path (builder);
measure = gsk_path_measure_new (path);
g_assert_true (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (50, 50), GSK_FILL_RULE_WINDING));
g_assert_true (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (50, 50), GSK_FILL_RULE_EVEN_ODD));
g_assert_false (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (-50, 50), GSK_FILL_RULE_WINDING));
g_assert_false (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (-50, 50), GSK_FILL_RULE_EVEN_ODD));
g_assert_false (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (50, -50), GSK_FILL_RULE_WINDING));
g_assert_false (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (50, -50), GSK_FILL_RULE_EVEN_ODD));
gsk_path_measure_unref (measure);
gsk_path_unref (path);
}
static void
test_in_fill_rect2 (void)
{
GskPathBuilder *builder;
GskPath *path;
GskPathMeasure *measure;
builder = gsk_path_builder_new ();
gsk_path_builder_add_rect (builder, &GRAPHENE_RECT_INIT (100, 0, -100, 100));
path = gsk_path_builder_free_to_path (builder);
measure = gsk_path_measure_new (path);
g_assert_true (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (50, 50), GSK_FILL_RULE_WINDING));
g_assert_true (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (50, 50), GSK_FILL_RULE_EVEN_ODD));
gsk_path_measure_unref (measure);
gsk_path_unref (path);
}
static void
test_in_fill_rect3 (void)
{
GskPathBuilder *builder;
GskPath *path;
GskPathMeasure *measure;
builder = gsk_path_builder_new ();
gsk_path_builder_add_rect (builder, &GRAPHENE_RECT_INIT (0, 0, 100, 100));
gsk_path_builder_add_rect (builder, &GRAPHENE_RECT_INIT (10, 10, 80, 80));
path = gsk_path_builder_free_to_path (builder);
measure = gsk_path_measure_new (path);
g_assert_true (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (50, 50), GSK_FILL_RULE_WINDING));
g_assert_false (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (50, 50), GSK_FILL_RULE_EVEN_ODD));
gsk_path_measure_unref (measure);
gsk_path_unref (path);
}
static void
test_in_fill_rect4 (void)
{
GskPathBuilder *builder;
GskPath *path;
GskPathMeasure *measure;
builder = gsk_path_builder_new ();
gsk_path_builder_add_rect (builder, &GRAPHENE_RECT_INIT (0, 0, 100, 100));
gsk_path_builder_add_rect (builder, &GRAPHENE_RECT_INIT (90, 10, -80, 80));
path = gsk_path_builder_free_to_path (builder);
measure = gsk_path_measure_new (path);
g_assert_false (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (50, 50), GSK_FILL_RULE_WINDING));
g_assert_false (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (50, 50), GSK_FILL_RULE_EVEN_ODD));
gsk_path_measure_unref (measure);
gsk_path_unref (path);
}
static void
test_in_fill_circle (void)
{
GskPathBuilder *builder;
GskPath *path;
GskPathMeasure *measure;
builder = gsk_path_builder_new ();
gsk_path_builder_add_circle (builder, &GRAPHENE_POINT_INIT (50, 50), 50);
path = gsk_path_builder_free_to_path (builder);
measure = gsk_path_measure_new (path);
g_assert_true (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (50, 50), GSK_FILL_RULE_WINDING));
g_assert_true (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (50, 50), GSK_FILL_RULE_EVEN_ODD));
g_assert_false (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (0, 0), GSK_FILL_RULE_WINDING));
g_assert_false (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (0, 0), GSK_FILL_RULE_EVEN_ODD));
g_assert_false (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (100, 100), GSK_FILL_RULE_WINDING));
g_assert_false (gsk_path_measure_in_fill (measure, &GRAPHENE_POINT_INIT (100, 100), GSK_FILL_RULE_EVEN_ODD));
gsk_path_measure_unref (measure);
gsk_path_unref (path);
}
int
main (int argc,
char *argv[])
@@ -314,6 +423,11 @@ main (int argc,
g_test_add_func ("/path/rsvg-parse", test_rsvg_parse);
g_test_add_func ("/path/serialize-custom-contours", test_serialize_custom_contours);
g_test_add_func ("/path/in-fill/rect1", test_in_fill_rect1);
g_test_add_func ("/path/in-fill/rect2", test_in_fill_rect2);
g_test_add_func ("/path/in-fill/rect3", test_in_fill_rect3);
g_test_add_func ("/path/in-fill/rect4", test_in_fill_rect4);
g_test_add_func ("/path/in-fill/circle", test_in_fill_circle);
return g_test_run ();
}