/* Pango * pango-ot.h: * * Copyright (C) 2000,2007 Red Hat Software * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifndef __PANGO_OT_H__ #define __PANGO_OT_H__ #include #include #include #include #include G_BEGIN_DECLS #ifdef PANGO_ENABLE_ENGINE typedef guint32 PangoOTTag; #define PANGO_OT_TAG_MAKE(c1,c2,c3,c4) ((PangoOTTag) FT_MAKE_TAG (c1, c2, c3, c4)) #define PANGO_OT_TAG_MAKE_FROM_STRING(s) (PANGO_OT_TAG_MAKE(((const char *) s)[0], \ ((const char *) s)[1], \ ((const char *) s)[2], \ ((const char *) s)[3])) typedef struct _PangoOTInfo PangoOTInfo; typedef struct _PangoOTBuffer PangoOTBuffer; typedef struct _PangoOTGlyph PangoOTGlyph; typedef struct _PangoOTRuleset PangoOTRuleset; typedef struct _PangoOTFeatureMap PangoOTFeatureMap; typedef struct _PangoOTRulesetDescription PangoOTRulesetDescription; typedef enum { PANGO_OT_TABLE_GSUB, PANGO_OT_TABLE_GPOS } PangoOTTableType; #define PANGO_OT_ALL_GLYPHS ((guint) 0xFFFF) #define PANGO_OT_NO_FEATURE ((guint) 0xFFFF) #define PANGO_OT_NO_SCRIPT ((guint) 0xFFFF) #define PANGO_OT_DEFAULT_LANGUAGE ((guint) 0xFFFF) #define PANGO_OT_TAG_DEFAULT_SCRIPT PANGO_OT_TAG_MAKE ('D', 'F', 'L', 'T') #define PANGO_OT_TAG_DEFAULT_LANGUAGE PANGO_OT_TAG_MAKE ('d', 'f', 'l', 't') /* Note that this must match HB_GlyphItem */ struct _PangoOTGlyph { guint glyph; guint properties; guint cluster; gushort component; gushort ligID; gushort property_cache; /* Internal */ }; struct _PangoOTFeatureMap { char feature_name[5]; gulong property_bit; }; struct _PangoOTRulesetDescription { PangoScript script; PangoLanguage *language; const PangoOTFeatureMap *static_gsub_features; guint n_static_gsub_features; const PangoOTFeatureMap *static_gpos_features; guint n_static_gpos_features; const PangoOTFeatureMap *other_features; guint n_other_features; }; PangoOTInfo *pango_ot_info_get (FT_Face face); gboolean pango_ot_info_find_script (PangoOTInfo *info, PangoOTTableType table_type, PangoOTTag script_tag, guint *script_index); gboolean pango_ot_info_find_language (PangoOTInfo *info, PangoOTTableType table_type, guint script_index, PangoOTTag language_tag, guint *language_index, guint *required_feature_index); gboolean pango_ot_info_find_feature (PangoOTInfo *info, PangoOTTableType table_type, PangoOTTag feature_tag, guint script_index, guint language_index, guint *feature_index); PangoOTTag *pango_ot_info_list_scripts (PangoOTInfo *info, PangoOTTableType table_type); PangoOTTag *pango_ot_info_list_languages (PangoOTInfo *info, PangoOTTableType table_type, guint script_index, PangoOTTag language_tag); PangoOTTag *pango_ot_info_list_features (PangoOTInfo *info, PangoOTTableType table_type, PangoOTTag tag, guint script_index, guint language_index); PangoOTBuffer *pango_ot_buffer_new (PangoFcFont *font); void pango_ot_buffer_destroy (PangoOTBuffer *buffer); void pango_ot_buffer_clear (PangoOTBuffer *buffer); void pango_ot_buffer_set_rtl (PangoOTBuffer *buffer, gboolean rtl); void pango_ot_buffer_add_glyph (PangoOTBuffer *buffer, guint glyph, guint properties, guint cluster); void pango_ot_buffer_get_glyphs (const PangoOTBuffer *buffer, PangoOTGlyph **glyphs, int *n_glyphs); void pango_ot_buffer_output (const PangoOTBuffer *buffer, PangoGlyphString *glyphs); void pango_ot_buffer_set_zero_width_marks (PangoOTBuffer *buffer, gboolean zero_width_marks); const PangoOTRuleset *pango_ot_ruleset_get_for_description (PangoOTInfo *info, const PangoOTRulesetDescription *desc); PangoOTRuleset *pango_ot_ruleset_new (PangoOTInfo *info); PangoOTRuleset *pango_ot_ruleset_new_for (PangoOTInfo *info, PangoScript script, PangoLanguage *language); PangoOTRuleset *pango_ot_ruleset_new_from_description (PangoOTInfo *info, const PangoOTRulesetDescription *desc); void pango_ot_ruleset_add_feature (PangoOTRuleset *ruleset, PangoOTTableType table_type, guint feature_index, gulong property_bit); gboolean pango_ot_ruleset_maybe_add_feature (PangoOTRuleset *ruleset, PangoOTTableType table_type, PangoOTTag feature_tag, gulong property_bit); guint pango_ot_ruleset_maybe_add_features (PangoOTRuleset *ruleset, PangoOTTableType table_type, const PangoOTFeatureMap *features, guint n_features); guint pango_ot_ruleset_get_feature_count (const PangoOTRuleset *ruleset, guint *n_gsub_features, guint *n_gpos_features); void pango_ot_ruleset_substitute (const PangoOTRuleset *ruleset, PangoOTBuffer *buffer); void pango_ot_ruleset_position (const PangoOTRuleset *ruleset, PangoOTBuffer *buffer); PangoScript pango_ot_tag_to_script (PangoOTTag script_tag) G_GNUC_CONST; PangoOTTag pango_ot_tag_from_script (PangoScript script) G_GNUC_CONST; PangoLanguage *pango_ot_tag_to_language (PangoOTTag language_tag) G_GNUC_CONST; PangoOTTag pango_ot_tag_from_language (PangoLanguage *language) G_GNUC_CONST; guint pango_ot_ruleset_description_hash (const PangoOTRulesetDescription *desc) G_GNUC_PURE; gboolean pango_ot_ruleset_description_equal (const PangoOTRulesetDescription *desc1, const PangoOTRulesetDescription *desc2) G_GNUC_PURE; PangoOTRulesetDescription *pango_ot_ruleset_description_copy (const PangoOTRulesetDescription *desc); void pango_ot_ruleset_description_free (PangoOTRulesetDescription *desc); #endif /* PANGO_ENABLE_ENGINE */ G_END_DECLS #endif /* __PANGO_OT_H__ */