[test/font] Test font_funcs subclassing
diff --git a/test/test-font.c b/test/test-font.c
index 01d20b4..aa78a20 100644
--- a/test/test-font.c
+++ b/test/test-font.c
@@ -183,7 +183,7 @@
}
static void
-test_fontfuncs_custom (void)
+test_fontfuncs_nil (void)
{
hb_font_funcs_t *ffuncs;
@@ -195,6 +195,158 @@
hb_font_funcs_destroy (ffuncs);
}
+static hb_bool_t
+contour_point_func1 (hb_font_t *font, void *font_data,
+ hb_codepoint_t glyph, unsigned int point_index,
+ hb_position_t *x, hb_position_t *y,
+ void *user_data)
+{
+ if (glyph == 1) {
+ *x = 2;
+ *y = 3;
+ return TRUE;
+ }
+ if (glyph == 2) {
+ *x = 4;
+ *y = 5;
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static hb_bool_t
+contour_point_func2 (hb_font_t *font, void *font_data,
+ hb_codepoint_t glyph, unsigned int point_index,
+ hb_position_t *x, hb_position_t *y,
+ void *user_data)
+{
+ if (glyph == 1) {
+ *x = 6;
+ *y = 7;
+ return TRUE;
+ }
+
+ return hb_font_get_contour_point (hb_font_get_parent (font),
+ glyph, point_index, x, y);
+}
+
+static void
+glyph_advance_func1 (hb_font_t *font, void *font_data,
+ hb_codepoint_t glyph,
+ hb_position_t *x_advance, hb_position_t *y_advance,
+ void *user_data)
+{
+ if (glyph == 1) {
+ *x_advance = 8;
+ *y_advance = 9;
+ }
+}
+
+static void
+test_fontfuncs_subclassing (void)
+{
+ hb_blob_t *blob;
+ hb_face_t *face;
+
+ hb_font_funcs_t *ffuncs1;
+ hb_font_funcs_t *ffuncs2;
+
+ hb_font_t *font1;
+ hb_font_t *font2;
+ hb_font_t *font3;
+
+ hb_position_t x;
+ hb_position_t y;
+
+ blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL);
+ face = hb_face_create (blob, 0);
+ hb_blob_destroy (blob);
+ font1 = hb_font_create (face);
+ hb_face_destroy (face);
+ hb_font_set_scale (font1, 10, 10);
+
+ /* setup font1 */
+ ffuncs1 = hb_font_funcs_create ();
+ hb_font_funcs_set_contour_point_func (ffuncs1, contour_point_func1, NULL, NULL);
+ hb_font_funcs_set_glyph_advance_func (ffuncs1, glyph_advance_func1, NULL, NULL);
+ hb_font_set_funcs (font1, ffuncs1, NULL, NULL);
+ hb_font_funcs_destroy (ffuncs1);
+
+ x = y = 1;
+ g_assert (hb_font_get_contour_point (font1, 1, 2, &x, &y));
+ g_assert_cmpint (x, ==, 2);
+ g_assert_cmpint (y, ==, 3);
+ g_assert (hb_font_get_contour_point (font1, 2, 5, &x, &y));
+ g_assert_cmpint (x, ==, 4);
+ g_assert_cmpint (y, ==, 5);
+ g_assert (!hb_font_get_contour_point (font1, 3, 7, &x, &y));
+ g_assert_cmpint (x, ==, 0);
+ g_assert_cmpint (y, ==, 0);
+ hb_font_get_glyph_advance (font1, 1, &x, &y);
+ g_assert_cmpint (x, ==, 8);
+ g_assert_cmpint (y, ==, 9);
+ hb_font_get_glyph_advance (font1, 2, &x, &y);
+ g_assert_cmpint (x, ==, 0);
+ g_assert_cmpint (y, ==, 0);
+
+
+ font2 = hb_font_create_sub_font (font1);
+ g_assert (hb_font_is_immutable (font1));
+ hb_font_destroy (font1);
+
+ /* setup font2 to override some funcs */
+ ffuncs2 = hb_font_funcs_create ();
+ hb_font_funcs_set_contour_point_func (ffuncs2, contour_point_func2, NULL, NULL);
+ hb_font_set_funcs (font2, ffuncs2, NULL, NULL);
+ hb_font_funcs_destroy (ffuncs2);
+
+ x = y = 1;
+ g_assert (hb_font_get_contour_point (font2, 1, 2, &x, &y));
+ g_assert_cmpint (x, ==, 6);
+ g_assert_cmpint (y, ==, 7);
+ g_assert (hb_font_get_contour_point (font2, 2, 5, &x, &y));
+ g_assert_cmpint (x, ==, 4);
+ g_assert_cmpint (y, ==, 5);
+ g_assert (!hb_font_get_contour_point (font2, 3, 7, &x, &y));
+ g_assert_cmpint (x, ==, 0);
+ g_assert_cmpint (y, ==, 0);
+ hb_font_get_glyph_advance (font2, 1, &x, &y);
+ g_assert_cmpint (x, ==, 8);
+ g_assert_cmpint (y, ==, 9);
+ hb_font_get_glyph_advance (font2, 2, &x, &y);
+ g_assert_cmpint (x, ==, 0);
+ g_assert_cmpint (y, ==, 0);
+
+
+ font3 = hb_font_create_sub_font (font2);
+ g_assert (hb_font_is_immutable (font2));
+ hb_font_destroy (font2);
+
+ /* setup font3 to override scale */
+ hb_font_set_scale (font3, 20, 30);
+
+ x = y = 1;
+ g_assert (hb_font_get_contour_point (font3, 1, 2, &x, &y));
+ g_assert_cmpint (x, ==, 6*2);
+ g_assert_cmpint (y, ==, 7*3);
+ g_assert (hb_font_get_contour_point (font3, 2, 5, &x, &y));
+ g_assert_cmpint (x, ==, 4*2);
+ g_assert_cmpint (y, ==, 5*3);
+ g_assert (!hb_font_get_contour_point (font3, 3, 7, &x, &y));
+ g_assert_cmpint (x, ==, 0*2);
+ g_assert_cmpint (y, ==, 0*3);
+ hb_font_get_glyph_advance (font3, 1, &x, &y);
+ g_assert_cmpint (x, ==, 8*2);
+ g_assert_cmpint (y, ==, 9*3);
+ hb_font_get_glyph_advance (font3, 2, &x, &y);
+ g_assert_cmpint (x, ==, 0*2);
+ g_assert_cmpint (y, ==, 0*3);
+
+
+ hb_font_destroy (font3);
+}
+
static void
test_font_empty (void)
@@ -343,11 +495,11 @@
hb_test_add (test_face_createfortables);
hb_test_add (test_fontfuncs_empty);
- hb_test_add (test_fontfuncs_custom);
+ hb_test_add (test_fontfuncs_nil);
+ hb_test_add (test_fontfuncs_subclassing);
hb_test_add (test_font_empty);
hb_test_add (test_font_properties);
-
return hb_test_run();
}
