From f2c1dd4f746c36a44cf33d0257a3cd800107c286 Mon Sep 17 00:00:00 2001 From: Behdad Esfahbod Date: Thu, 12 May 2011 00:35:12 -0400 Subject: [PATCH] [test/font] Test font_funcs subclassing --- test/test-font.c | 158 ++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 155 insertions(+), 3 deletions(-) diff --git a/test/test-font.c b/test/test-font.c index 01d20b46e..aa78a20ab 100644 --- a/test/test-font.c +++ b/test/test-font.c @@ -183,7 +183,7 @@ test_fontfuncs_empty (void) } static void -test_fontfuncs_custom (void) +test_fontfuncs_nil (void) { hb_font_funcs_t *ffuncs; @@ -195,6 +195,158 @@ test_fontfuncs_custom (void) 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 @@ main (int argc, char **argv) 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(); }