[test/font] Test font_funcs subclassing

This commit is contained in:
Behdad Esfahbod 2011-05-12 00:35:12 -04:00
parent 14f1e81b77
commit f2c1dd4f74
1 changed files with 155 additions and 3 deletions

View File

@ -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();
}