hb-face.h 2.9 KB

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  1. /*
  2. * Copyright © 2009 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. * Red Hat Author(s): Behdad Esfahbod
  25. */
  26. #ifndef HB_H_IN
  27. #error "Include <hb.h> instead."
  28. #endif
  29. #ifndef HB_FACE_H
  30. #define HB_FACE_H
  31. #include "hb-common.h"
  32. #include "hb-blob.h"
  33. HB_BEGIN_DECLS
  34. /*
  35. * hb_face_t
  36. */
  37. typedef struct hb_face_t hb_face_t;
  38. HB_EXTERN hb_face_t *
  39. hb_face_create (hb_blob_t *blob,
  40. unsigned int index);
  41. typedef hb_blob_t * (*hb_reference_table_func_t) (hb_face_t *face, hb_tag_t tag, void *user_data);
  42. /* calls destroy() when not needing user_data anymore */
  43. HB_EXTERN hb_face_t *
  44. hb_face_create_for_tables (hb_reference_table_func_t reference_table_func,
  45. void *user_data,
  46. hb_destroy_func_t destroy);
  47. HB_EXTERN hb_face_t *
  48. hb_face_get_empty (void);
  49. HB_EXTERN hb_face_t *
  50. hb_face_reference (hb_face_t *face);
  51. HB_EXTERN void
  52. hb_face_destroy (hb_face_t *face);
  53. HB_EXTERN hb_bool_t
  54. hb_face_set_user_data (hb_face_t *face,
  55. hb_user_data_key_t *key,
  56. void * data,
  57. hb_destroy_func_t destroy,
  58. hb_bool_t replace);
  59. HB_EXTERN void *
  60. hb_face_get_user_data (hb_face_t *face,
  61. hb_user_data_key_t *key);
  62. HB_EXTERN void
  63. hb_face_make_immutable (hb_face_t *face);
  64. HB_EXTERN hb_bool_t
  65. hb_face_is_immutable (hb_face_t *face);
  66. HB_EXTERN hb_blob_t *
  67. hb_face_reference_table (hb_face_t *face,
  68. hb_tag_t tag);
  69. HB_EXTERN hb_blob_t *
  70. hb_face_reference_blob (hb_face_t *face);
  71. HB_EXTERN void
  72. hb_face_set_index (hb_face_t *face,
  73. unsigned int index);
  74. HB_EXTERN unsigned int
  75. hb_face_get_index (hb_face_t *face);
  76. HB_EXTERN void
  77. hb_face_set_upem (hb_face_t *face,
  78. unsigned int upem);
  79. HB_EXTERN unsigned int
  80. hb_face_get_upem (hb_face_t *face);
  81. HB_EXTERN void
  82. hb_face_set_glyph_count (hb_face_t *face,
  83. unsigned int glyph_count);
  84. HB_EXTERN unsigned int
  85. hb_face_get_glyph_count (hb_face_t *face);
  86. HB_END_DECLS
  87. #endif /* HB_FACE_H */