Unicode data providers can now be subclassed, including support for chain-up. The interface should now be nicely bindable, as well. Also fix glib unicode funcs that where broken after hb_script_t changes. Nicely caught by the test-unicode.c added in this commit.pull/1/head
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/*
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* Copyright (C) 2011 Codethink Limited |
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* |
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* This is part of HarfBuzz, a text shaping library. |
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* |
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* Permission is hereby granted, without written agreement and without |
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* license or royalty fees, to use, copy, modify, and distribute this |
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* software and its documentation for any purpose, provided that the |
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* above copyright notice and the following two paragraphs appear in |
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* all copies of this software. |
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* |
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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* DAMAGE. |
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* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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* |
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* Codethink Author(s): Ryan Lortie |
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*/ |
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#include "hb-test.h" |
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/* This file tests the unicode virtual functions interface */ |
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static void |
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test_nil (void) |
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{ |
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hb_unicode_funcs_t *uf = hb_unicode_funcs_create (NULL); |
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g_assert_cmpint (hb_unicode_get_script (uf, 'd'), ==, HB_SCRIPT_UNKNOWN); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1); |
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hb_unicode_funcs_destroy (uf); |
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} |
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static void |
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test_glib (void) |
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{ |
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hb_unicode_funcs_t *uf = hb_glib_get_unicode_funcs (); |
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g_assert_cmpint (hb_unicode_get_script (uf, 'd'), ==, HB_SCRIPT_LATIN); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 0); |
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hb_unicode_funcs_destroy (uf); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 0); |
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} |
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static gboolean freed0, freed1; |
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static int unique_pointer0[1]; |
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static int unique_pointer1[1]; |
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static void free_up (void *up) |
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{ |
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if (up == unique_pointer0) { |
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g_assert (!freed0); |
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freed0 = TRUE; |
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} else if (up == unique_pointer1) { |
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g_assert (!freed1); |
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freed1 = TRUE; |
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} else { |
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g_assert_not_reached (); |
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} |
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} |
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static hb_script_t |
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simple_get_script (hb_unicode_funcs_t *ufuncs, |
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hb_codepoint_t codepoint, |
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void *user_data) |
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{ |
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g_assert (hb_unicode_funcs_get_parent (ufuncs) == NULL); |
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g_assert (unique_pointer0 == user_data); |
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if ('a' <= codepoint && codepoint <= 'z') |
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return HB_SCRIPT_LATIN; |
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else |
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return HB_SCRIPT_UNKNOWN; |
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} |
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static void |
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test_custom (void) |
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{ |
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hb_unicode_funcs_t *uf = hb_unicode_funcs_create (NULL); |
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hb_unicode_funcs_set_script_func (uf, simple_get_script, |
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unique_pointer0, free_up); |
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g_assert_cmpint (hb_unicode_get_script (uf, 'a'), ==, HB_SCRIPT_LATIN); |
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g_assert_cmpint (hb_unicode_get_script (uf, '0'), ==, HB_SCRIPT_UNKNOWN); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1); |
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g_assert (!freed0 && !freed1); |
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hb_unicode_funcs_destroy (uf); |
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g_assert (freed0 && !freed1); |
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freed0 = FALSE; |
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} |
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static hb_script_t |
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a_is_for_arabic_get_script (hb_unicode_funcs_t *ufuncs, |
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hb_codepoint_t codepoint, |
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void *user_data) |
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{ |
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g_assert (hb_unicode_funcs_get_parent (ufuncs) != NULL); |
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g_assert (user_data == unique_pointer1); |
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if (codepoint == 'a') { |
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return HB_SCRIPT_ARABIC; |
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} else { |
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hb_unicode_funcs_t *parent = hb_unicode_funcs_get_parent (ufuncs); |
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return hb_unicode_get_script (parent, codepoint); |
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} |
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} |
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static void |
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test_subclassing_nil (void) |
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{ |
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hb_unicode_funcs_t *uf = hb_unicode_funcs_create (NULL); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1); |
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hb_unicode_funcs_t *aa = hb_unicode_funcs_create (uf); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 2); |
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hb_unicode_funcs_destroy (uf); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1); |
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hb_unicode_funcs_set_script_func (aa, a_is_for_arabic_get_script, |
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unique_pointer1, free_up); |
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g_assert_cmpint (hb_unicode_get_script (aa, 'a'), ==, HB_SCRIPT_ARABIC); |
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g_assert_cmpint (hb_unicode_get_script (aa, 'b'), ==, HB_SCRIPT_UNKNOWN); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (aa), ==, 1); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1); |
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g_assert (!freed0 && !freed1); |
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hb_unicode_funcs_destroy (aa); |
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g_assert (!freed0 && freed1); |
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freed1 = FALSE; |
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} |
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static void |
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test_subclassing_glib (void) |
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{ |
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hb_unicode_funcs_t *uf = hb_glib_get_unicode_funcs (); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 0); |
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hb_unicode_funcs_t *aa = hb_unicode_funcs_create (uf); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 0); |
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hb_unicode_funcs_destroy (uf); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 0); |
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hb_unicode_funcs_set_script_func (aa, a_is_for_arabic_get_script, |
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unique_pointer1, free_up); |
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g_assert_cmpint (hb_unicode_get_script (aa, 'a'), ==, HB_SCRIPT_ARABIC); |
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g_assert_cmpint (hb_unicode_get_script (aa, 'b'), ==, HB_SCRIPT_LATIN); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (aa), ==, 1); |
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g_assert (!freed0 && !freed1); |
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hb_unicode_funcs_destroy (aa); |
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g_assert (!freed0 && freed1); |
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freed1 = FALSE; |
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} |
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static void |
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test_subclassing_deep (void) |
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{ |
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hb_unicode_funcs_t *uf = hb_unicode_funcs_create (NULL); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1); |
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hb_unicode_funcs_set_script_func (uf, simple_get_script, |
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unique_pointer0, free_up); |
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hb_unicode_funcs_t *aa = hb_unicode_funcs_create (uf); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (aa), ==, 1); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 2); |
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hb_unicode_funcs_destroy (uf); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1); |
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/* make sure the 'uf' didn't get freed, since 'aa' holds a ref */ |
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g_assert (!freed0); |
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hb_unicode_funcs_set_script_func (aa, a_is_for_arabic_get_script, |
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unique_pointer1, free_up); |
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g_assert_cmpint (hb_unicode_get_script (aa, 'a'), ==, HB_SCRIPT_ARABIC); |
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g_assert_cmpint (hb_unicode_get_script (aa, 'b'), ==, HB_SCRIPT_LATIN); |
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g_assert_cmpint (hb_unicode_get_script (aa, '0'), ==, HB_SCRIPT_UNKNOWN); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (aa), ==, 1); |
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1); |
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g_assert (!freed0 && !freed1); |
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hb_unicode_funcs_destroy (aa); |
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g_assert (freed0 && freed1); |
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freed0 = freed1 = FALSE; |
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} |
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int |
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main (int argc, char **argv) |
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{ |
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g_test_init (&argc, &argv, NULL); |
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g_test_add_func ("/unicode/nil", test_nil); |
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g_test_add_func ("/unicode/glib", test_glib); |
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g_test_add_func ("/unicode/custom", test_custom); |
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g_test_add_func ("/unicode/subclassing/nil", test_subclassing_nil); |
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g_test_add_func ("/unicode/subclassing/glib", test_subclassing_glib); |
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g_test_add_func ("/unicode/subclassing/deep", test_subclassing_deep); |
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return g_test_run (); |
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} |
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