| /***************************************************************************/ |
| /* */ |
| /* afindic.c */ |
| /* */ |
| /* Auto-fitter hinting routines for Indic writing system (body). */ |
| /* */ |
| /* Copyright 2007-2015 by */ |
| /* Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>. */ |
| /* */ |
| /* This file is part of the FreeType project, and may only be used, */ |
| /* modified, and distributed under the terms of the FreeType project */ |
| /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
| /* this file you indicate that you have read the license and */ |
| /* understand and accept it fully. */ |
| /* */ |
| /***************************************************************************/ |
| |
| |
| #include "aftypes.h" |
| #include "aflatin.h" |
| |
| |
| #ifdef AF_CONFIG_OPTION_INDIC |
| |
| #include "afindic.h" |
| #include "aferrors.h" |
| #include "afcjk.h" |
| |
| |
| #ifdef AF_CONFIG_OPTION_USE_WARPER |
| #include "afwarp.h" |
| #endif |
| |
| |
| static FT_Error |
| af_indic_metrics_init( AF_CJKMetrics metrics, |
| FT_Face face ) |
| { |
| /* skip blue zone init in CJK routines */ |
| FT_CharMap oldmap = face->charmap; |
| |
| |
| metrics->units_per_em = face->units_per_EM; |
| |
| if ( FT_Select_Charmap( face, FT_ENCODING_UNICODE ) ) |
| face->charmap = NULL; |
| else |
| { |
| af_cjk_metrics_init_widths( metrics, face ); |
| #if 0 |
| /* either need indic specific blue_chars[] or just skip blue zones */ |
| af_cjk_metrics_init_blues( metrics, face, af_cjk_blue_chars ); |
| #endif |
| af_cjk_metrics_check_digits( metrics, face ); |
| } |
| |
| FT_Set_Charmap( face, oldmap ); |
| |
| return FT_Err_Ok; |
| } |
| |
| |
| static void |
| af_indic_metrics_scale( AF_CJKMetrics metrics, |
| AF_Scaler scaler ) |
| { |
| /* use CJK routines */ |
| af_cjk_metrics_scale( metrics, scaler ); |
| } |
| |
| |
| static FT_Error |
| af_indic_hints_init( AF_GlyphHints hints, |
| AF_CJKMetrics metrics ) |
| { |
| /* use CJK routines */ |
| return af_cjk_hints_init( hints, metrics ); |
| } |
| |
| |
| static FT_Error |
| af_indic_hints_apply( AF_GlyphHints hints, |
| FT_Outline* outline, |
| AF_CJKMetrics metrics ) |
| { |
| /* use CJK routines */ |
| return af_cjk_hints_apply( hints, outline, metrics ); |
| } |
| |
| |
| /*************************************************************************/ |
| /*************************************************************************/ |
| /***** *****/ |
| /***** I N D I C S C R I P T C L A S S *****/ |
| /***** *****/ |
| /*************************************************************************/ |
| /*************************************************************************/ |
| |
| |
| AF_DEFINE_WRITING_SYSTEM_CLASS( |
| af_indic_writing_system_class, |
| |
| AF_WRITING_SYSTEM_INDIC, |
| |
| sizeof ( AF_CJKMetricsRec ), |
| |
| (AF_WritingSystem_InitMetricsFunc) af_indic_metrics_init, |
| (AF_WritingSystem_ScaleMetricsFunc)af_indic_metrics_scale, |
| (AF_WritingSystem_DoneMetricsFunc) NULL, |
| |
| (AF_WritingSystem_InitHintsFunc) af_indic_hints_init, |
| (AF_WritingSystem_ApplyHintsFunc) af_indic_hints_apply |
| ) |
| |
| |
| #else /* !AF_CONFIG_OPTION_INDIC */ |
| |
| |
| AF_DEFINE_WRITING_SYSTEM_CLASS( |
| af_indic_writing_system_class, |
| |
| AF_WRITING_SYSTEM_INDIC, |
| |
| sizeof ( AF_CJKMetricsRec ), |
| |
| (AF_WritingSystem_InitMetricsFunc) NULL, |
| (AF_WritingSystem_ScaleMetricsFunc)NULL, |
| (AF_WritingSystem_DoneMetricsFunc) NULL, |
| |
| (AF_WritingSystem_InitHintsFunc) NULL, |
| (AF_WritingSystem_ApplyHintsFunc) NULL |
| ) |
| |
| |
| #endif /* !AF_CONFIG_OPTION_INDIC */ |
| |
| |
| /* END */ |