kc3-lang/harfbuzz/src/hb-ot-layout.h
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Hash : 0090dc0f
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Date : 2009-07-30T16:28:45
[HB] Remove hinting setting and use ppem==0 to mean "no hinting"
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src/hb-ot-layout.h
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/* * Copyright (C) 2007,2008,2009 Red Hat, Inc. * * This is part of HarfBuzz, an OpenType Layout engine 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. * * Red Hat Author(s): Behdad Esfahbod */ #ifndef HB_OT_LAYOUT_H #define HB_OT_LAYOUT_H #include "hb-common.h" #include "hb-buffer.h" HB_BEGIN_DECLS /* * hb_ot_layout_t */ typedef struct _hb_ot_layout_t hb_ot_layout_t; hb_ot_layout_t * hb_ot_layout_create (void); hb_ot_layout_t * hb_ot_layout_create_for_data (const char *font_data, int face_index); hb_ot_layout_t * hb_ot_layout_create_for_tables (const char *gdef_data, const char *gsub_data, const char *gpos_data); void hb_ot_layout_destroy (hb_ot_layout_t *layout); void hb_ot_layout_set_scale (hb_ot_layout_t *layout, hb_16dot16_t x_scale, hb_16dot16_t y_scale); void hb_ot_layout_set_ppem (hb_ot_layout_t *layout, unsigned int x_ppem, unsigned int y_ppem); /* TODO sanitizing API/constructor (make_writable_func_t) */ /* TODO get_table_func_t constructor */ /* * GDEF */ typedef enum { HB_OT_LAYOUT_GLYPH_CLASS_UNCLASSIFIED = 0x0000, HB_OT_LAYOUT_GLYPH_CLASS_BASE_GLYPH = 0x0002, HB_OT_LAYOUT_GLYPH_CLASS_LIGATURE = 0x0004, HB_OT_LAYOUT_GLYPH_CLASS_MARK = 0x0008, HB_OT_LAYOUT_GLYPH_CLASS_COMPONENT = 0x0010 } hb_ot_layout_glyph_class_t; hb_bool_t hb_ot_layout_has_font_glyph_classes (hb_ot_layout_t *layout); hb_ot_layout_glyph_class_t hb_ot_layout_get_glyph_class (hb_ot_layout_t *layout, hb_codepoint_t glyph); void hb_ot_layout_set_glyph_class (hb_ot_layout_t *layout, hb_codepoint_t glyph, hb_ot_layout_glyph_class_t klass); void hb_ot_layout_build_glyph_classes (hb_ot_layout_t *layout, uint16_t num_total_glyphs, hb_codepoint_t *glyphs, unsigned char *klasses, uint16_t count); hb_bool_t hb_ot_layout_get_attach_points (hb_ot_layout_t *layout, hb_codepoint_t glyph, unsigned int *point_count /* IN/OUT */, unsigned int *point_array /* OUT */); hb_bool_t hb_ot_layout_get_lig_carets (hb_ot_layout_t *layout, hb_codepoint_t glyph, unsigned int *caret_count /* IN/OUT */, int *caret_array /* OUT */); /* * GSUB/GPOS */ typedef enum { HB_OT_LAYOUT_TABLE_TYPE_GSUB, HB_OT_LAYOUT_TABLE_TYPE_GPOS, HB_OT_LAYOUT_TABLE_TYPE_NONE } hb_ot_layout_table_type_t; typedef uint32_t hb_ot_layout_feature_mask_t; #define HB_OT_LAYOUT_NO_SCRIPT_INDEX ((unsigned int) 0xFFFF) #define HB_OT_LAYOUT_NO_FEATURE_INDEX ((unsigned int) 0xFFFF) #define HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX ((unsigned int) 0xFFFF) #define HB_OT_LAYOUT_TAG_DEFAULT_SCRIPT HB_TAG ('D', 'F', 'L', 'T') #define HB_OT_LAYOUT_TAG_DEFAULT_LANGUAGE HB_TAG ('d', 'f', 'l', 't') unsigned int hb_ot_layout_table_get_script_count (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type); hb_tag_t hb_ot_layout_table_get_script_tag (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type, unsigned int script_index); hb_bool_t hb_ot_layout_table_find_script (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type, hb_tag_t script_tag, unsigned int *script_index); unsigned int hb_ot_layout_table_get_feature_count (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type); hb_tag_t hb_ot_layout_table_get_feature_tag (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type, unsigned int feature_index); hb_bool_t hb_ot_layout_table_find_feature (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type, hb_tag_t feature_tag, unsigned int *feature_index); unsigned int hb_ot_layout_table_get_lookup_count (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type); unsigned int hb_ot_layout_script_get_language_count (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type, unsigned int script_index); hb_tag_t hb_ot_layout_script_get_language_tag (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type, unsigned int script_index, unsigned int language_index); hb_bool_t hb_ot_layout_script_find_language (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type, unsigned int script_index, hb_tag_t language_tag, unsigned int *language_index); hb_bool_t hb_ot_layout_language_get_required_feature_index (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type, unsigned int script_index, unsigned int language_index, unsigned int *feature_index); unsigned int hb_ot_layout_language_get_feature_count (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type, unsigned int script_index, unsigned int language_index); unsigned int hb_ot_layout_language_get_feature_index (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type, unsigned int script_index, unsigned int language_index, unsigned int num_feature); hb_tag_t hb_ot_layout_language_get_feature_tag (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type, unsigned int script_index, unsigned int language_index, unsigned int num_feature); hb_bool_t hb_ot_layout_language_find_feature (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type, unsigned int script_index, unsigned int language_index, hb_tag_t feature_tag, unsigned int *feature_index); unsigned int hb_ot_layout_feature_get_lookup_count (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type, unsigned int feature_index); unsigned int hb_ot_layout_feature_get_lookup_index (hb_ot_layout_t *layout, hb_ot_layout_table_type_t table_type, unsigned int feature_index, unsigned int num_lookup); /* * GSUB */ hb_bool_t hb_ot_layout_has_substitution (hb_ot_layout_t *layout); hb_bool_t hb_ot_layout_substitute_lookup (hb_ot_layout_t *layout, hb_buffer_t *buffer, unsigned int lookup_index, hb_ot_layout_feature_mask_t mask); /* * GPOS */ hb_bool_t hb_ot_layout_has_positioning (hb_ot_layout_t *layout); hb_bool_t hb_ot_layout_position_lookup (hb_ot_layout_t *layout, hb_buffer_t *buffer, unsigned int lookup_index, hb_ot_layout_feature_mask_t mask); /* #define PANGO_OT_ALL_GLYPHS ((guint) 0xFFFF) */ HB_END_DECLS #endif /* HB_OT_LAYOUT_H */