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/***************************************************************************/ |
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/* */ |
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/* afindic.c */ |
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/* */ |
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/* Auto-fitter hinting routines for Indic scripts (body). */ |
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/* */ |
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/* Copyright 2007, 2011-2013 by */ |
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/* Rahul Bhalerao , . */ |
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/* */ |
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/* This file is part of the FreeType project, and may only be used, */ |
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/* modified, and distributed under the terms of the FreeType project */ |
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
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/* this file you indicate that you have read the license and */ |
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/* understand and accept it fully. */ |
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/* */ |
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/***************************************************************************/ |
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#include "aftypes.h" |
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#include "aflatin.h" |
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#ifdef AF_CONFIG_OPTION_INDIC |
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#include "afindic.h" |
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#include "aferrors.h" |
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#include "afcjk.h" |
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#ifdef AF_CONFIG_OPTION_USE_WARPER |
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#include "afwarp.h" |
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#endif |
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static FT_Error |
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af_indic_metrics_init( AF_CJKMetrics metrics, |
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FT_Face face ) |
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{ |
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/* skip blue zone init in CJK routines */ |
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FT_CharMap oldmap = face->charmap; |
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metrics->units_per_em = face->units_per_EM; |
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if ( FT_Select_Charmap( face, FT_ENCODING_UNICODE ) ) |
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face->charmap = NULL; |
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else |
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{ |
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af_cjk_metrics_init_widths( metrics, face ); |
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#if 0 |
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/* either need indic specific blue_chars[] or just skip blue zones */ |
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af_cjk_metrics_init_blues( metrics, face, af_cjk_blue_chars ); |
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#endif |
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af_cjk_metrics_check_digits( metrics, face ); |
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} |
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FT_Set_Charmap( face, oldmap ); |
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return FT_Err_Ok; |
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} |
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static void |
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af_indic_metrics_scale( AF_CJKMetrics metrics, |
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AF_Scaler scaler ) |
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{ |
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/* use CJK routines */ |
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af_cjk_metrics_scale( metrics, scaler ); |
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} |
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static FT_Error |
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af_indic_hints_init( AF_GlyphHints hints, |
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AF_CJKMetrics metrics ) |
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{ |
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/* use CJK routines */ |
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return af_cjk_hints_init( hints, metrics ); |
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} |
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static FT_Error |
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af_indic_hints_apply( AF_GlyphHints hints, |
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FT_Outline* outline, |
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AF_CJKMetrics metrics ) |
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{ |
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/* use CJK routines */ |
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return af_cjk_hints_apply( hints, outline, metrics ); |
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} |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/***** *****/ |
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/***** I N D I C S C R I P T C L A S S *****/ |
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/***** *****/ |
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/*************************************************************************/ |
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/*************************************************************************/ |
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static const AF_Script_UniRangeRec af_indic_uniranges[] = |
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{ |
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#if 0 |
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AF_UNIRANGE_REC( 0x0100UL, 0xFFFFUL ), /* why this? */ |
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#endif |
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AF_UNIRANGE_REC( 0x0900UL, 0x0DFFUL), /* Indic Range */ |
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AF_UNIRANGE_REC( 0x0F00UL, 0x0FFFUL), /* Tibetan */ |
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AF_UNIRANGE_REC( 0x1900UL, 0x194FUL), /* Limbu */ |
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AF_UNIRANGE_REC( 0x1B80UL, 0x1BBFUL), /* Sundanese */ |
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AF_UNIRANGE_REC( 0x1C80UL, 0x1CDFUL), /* Meetei Mayak */ |
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AF_UNIRANGE_REC( 0xA800UL, 0xA82FUL), /* Syloti Nagri */ |
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AF_UNIRANGE_REC( 0x11800UL, 0x118DFUL), /* Sharada */ |
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AF_UNIRANGE_REC( 0UL, 0UL) |
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}; |
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AF_DEFINE_SCRIPT_CLASS( af_indic_script_class, |
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AF_SCRIPT_INDIC, |
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af_indic_uniranges, |
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'o', /* XXX */ |
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sizeof ( AF_CJKMetricsRec ), |
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(AF_Script_InitMetricsFunc) af_indic_metrics_init, |
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(AF_Script_ScaleMetricsFunc)af_indic_metrics_scale, |
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(AF_Script_DoneMetricsFunc) NULL, |
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(AF_Script_InitHintsFunc) af_indic_hints_init, |
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(AF_Script_ApplyHintsFunc) af_indic_hints_apply |
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) |
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#else /* !AF_CONFIG_OPTION_INDIC */ |
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static const AF_Script_UniRangeRec af_indic_uniranges[] = |
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{ |
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{ 0, 0 } |
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}; |
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AF_DEFINE_SCRIPT_CLASS( af_indic_script_class, |
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AF_SCRIPT_INDIC, |
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af_indic_uniranges, |
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0, |
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sizeof ( AF_CJKMetricsRec ), |
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(AF_Script_InitMetricsFunc) NULL, |
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(AF_Script_ScaleMetricsFunc)NULL, |
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(AF_Script_DoneMetricsFunc) NULL, |
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(AF_Script_InitHintsFunc) NULL, |
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(AF_Script_ApplyHintsFunc) NULL |
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) |
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#endif /* !AF_CONFIG_OPTION_INDIC */ |
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/* END */ |