harfbuzz/test/api/test-extents.c

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/*
* Copyright © 2023 Red Hat, Inc.
*
* This is part of HarfBuzz, a text shaping library.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and its documentation for any purpose, provided that the
* above copyright notice and the following two paragraphs appear in
* all copies of this software.
*
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
* Author(s): Matthias Clasen
*/
#include "hb-test.h"
static void
test_glyph_extents (void)
{
hb_face_t *face;
hb_font_t *font;
hb_glyph_extents_t extents;
hb_bool_t ret;
/* This font contains a COLRv1 glyph with a ClipBox,
* and various components without. The main thing
* we test here is that glyphs with no paint return
* 0,0,0,0 and not meaningless numbers.
*/
face = hb_test_open_font_file ("fonts/adwaita.ttf");
font = hb_font_create (face);
ret = hb_font_get_glyph_extents (font, 0, &extents);
g_assert_true (ret);
g_assert_true (extents.x_bearing == 0 &&
extents.y_bearing == 0 &&
extents.width == 0 &&
extents.height == 0);
ret = hb_font_get_glyph_extents (font, 1, &extents);
g_assert_true (ret);
g_assert_true (extents.x_bearing == 0 &&
extents.y_bearing == 0 &&
extents.width == 0 &&
extents.height == 0);
ret = hb_font_get_glyph_extents (font, 2, &extents);
g_assert_true (ret);
g_assert_true (extents.x_bearing == 180 &&
extents.y_bearing == 960 &&
extents.width == 1060 &&
extents.height == -1220);
ret = hb_font_get_glyph_extents (font, 3, &extents);
g_assert_true (ret);
g_assert_true (extents.x_bearing == 188 &&
extents.y_bearing == 950 &&
extents.width == 900 &&
extents.height == -1200);
ret = hb_font_get_glyph_extents (font, 4, &extents);
g_assert_true (ret);
g_assert_true (extents.x_bearing == 413 &&
extents.y_bearing == 50 &&
extents.width == 150 &&
extents.height == -75);
ret = hb_font_get_glyph_extents (font, 5, &extents);
g_assert_true (ret);
g_assert_true (extents.x_bearing == 638 &&
extents.y_bearing == 350 &&
extents.width == 600 &&
extents.height == -600);
ret = hb_font_get_glyph_extents (font, 1000, &extents);
g_assert_false (ret);
hb_font_destroy (font);
hb_face_destroy (face);
}
int
main (int argc, char **argv)
{
hb_test_init (&argc, &argv);
hb_test_add (test_glyph_extents);
return hb_test_run();
}