1  /*
       2   * Copyright © 2023 Red Hat, Inc.
       3   *
       4   *  This is part of HarfBuzz, a text shaping library.
       5   *
       6   * Permission is hereby granted, without written agreement and without
       7   * license or royalty fees, to use, copy, modify, and distribute this
       8   * software and its documentation for any purpose, provided that the
       9   * above copyright notice and the following two paragraphs appear in
      10   * all copies of this software.
      11   *
      12   * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
      13   * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
      14   * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
      15   * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
      16   * DAMAGE.
      17   *
      18   * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
      19   * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
      20   * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
      21   * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
      22   * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
      23   *
      24   * Author(s): Matthias Clasen
      25   */
      26  
      27  #include "hb-test.h"
      28  
      29  
      30  static void
      31  test_glyph_extents (void)
      32  {
      33    hb_face_t *face;
      34    hb_font_t *font;
      35    hb_glyph_extents_t extents;
      36    hb_bool_t ret;
      37  
      38    /* This font contains a COLRv1 glyph with a ClipBox,
      39     * and various components without. The main thing
      40     * we test here is that glyphs with no paint return
      41     * 0,0,0,0 and not meaningless numbers.
      42     */
      43  
      44    face = hb_test_open_font_file ("fonts/adwaita.ttf");
      45    font = hb_font_create (face);
      46  
      47    ret = hb_font_get_glyph_extents (font, 0, &extents);
      48    g_assert_true (ret);
      49    g_assert_true (extents.x_bearing == 0 &&
      50                   extents.y_bearing == 0 &&
      51                   extents.width     == 0 &&
      52                   extents.height    == 0);
      53  
      54    ret = hb_font_get_glyph_extents (font, 1, &extents);
      55    g_assert_true (ret);
      56    g_assert_true (extents.x_bearing == 0 &&
      57                   extents.y_bearing == 0 &&
      58                   extents.width     == 0 &&
      59                   extents.height    == 0);
      60  
      61    ret = hb_font_get_glyph_extents (font, 2, &extents);
      62    g_assert_true (ret);
      63    g_assert_true (extents.x_bearing ==   180 &&
      64                   extents.y_bearing ==   960 &&
      65                   extents.width     ==  1060 &&
      66                   extents.height    == -1220);
      67  
      68    ret = hb_font_get_glyph_extents (font, 3, &extents);
      69    g_assert_true (ret);
      70    g_assert_true (extents.x_bearing ==   188 &&
      71                   extents.y_bearing ==   950 &&
      72                   extents.width     ==   900 &&
      73                   extents.height    == -1200);
      74  
      75    ret = hb_font_get_glyph_extents (font, 4, &extents);
      76    g_assert_true (ret);
      77    g_assert_true (extents.x_bearing ==   413 &&
      78                   extents.y_bearing ==    50 &&
      79                   extents.width     ==   150 &&
      80                   extents.height    ==   -75);
      81  
      82    ret = hb_font_get_glyph_extents (font, 5, &extents);
      83    g_assert_true (ret);
      84    g_assert_true (extents.x_bearing ==   638 &&
      85                   extents.y_bearing ==   350 &&
      86                   extents.width     ==   600 &&
      87                   extents.height    ==  -600);
      88  
      89    ret = hb_font_get_glyph_extents (font, 1000, &extents);
      90    g_assert_false (ret);
      91  
      92    hb_font_destroy (font);
      93    hb_face_destroy (face);
      94  }
      95  
      96  int
      97  main (int argc, char **argv)
      98  {
      99    hb_test_init (&argc, &argv);
     100  
     101    hb_test_add (test_glyph_extents);
     102  
     103    return hb_test_run();
     104  }