ref: bdd5e75e4e2f30697f1635628d979af7a56e5f70
dir: /src/autofit/afindic.c/
/***************************************************************************/
/* */
/* afindic.c */
/* */
/* Auto-fitter hinting routines for Indic scripts (body). */
/* */
/* Copyright 2007, 2011-2013 by */
/* Rahul Bhalerao <[email protected]>, <[email protected]>. */
/* */
/* 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_Script_InitMetricsFunc) af_indic_metrics_init,
(AF_Script_ScaleMetricsFunc)af_indic_metrics_scale,
(AF_Script_DoneMetricsFunc) NULL,
(AF_Script_InitHintsFunc) af_indic_hints_init,
(AF_Script_ApplyHintsFunc) af_indic_hints_apply
)
/* XXX: this should probably fine tuned to differentiate better between */
/* scripts... */
static const AF_Script_UniRangeRec af_deva_uniranges[] =
{
AF_UNIRANGE_REC( 0x0900UL, 0x0DFFUL ), /* Indic Range */
AF_UNIRANGE_REC( 0x0F00UL, 0x0FFFUL ), /* Tibetan */
AF_UNIRANGE_REC( 0x1900UL, 0x194FUL ), /* Limbu */
AF_UNIRANGE_REC( 0x1B80UL, 0x1BBFUL ), /* Sundanese */
AF_UNIRANGE_REC( 0x1C80UL, 0x1CDFUL ), /* Meetei Mayak */
AF_UNIRANGE_REC( 0xA800UL, 0xA82FUL ), /* Syloti Nagri */
AF_UNIRANGE_REC( 0x11800UL, 0x118DFUL ), /* Sharada */
AF_UNIRANGE_REC( 0UL, 0UL )
};
#else /* !AF_CONFIG_OPTION_INDIC */
AF_DEFINE_WRITING_SYSTEM_CLASS(
af_indic_writing_system_class,
AF_WRITING_SYSTEM_INDIC,
sizeof ( AF_CJKMetricsRec ),
(AF_Script_InitMetricsFunc) NULL,
(AF_Script_ScaleMetricsFunc)NULL,
(AF_Script_DoneMetricsFunc) NULL,
(AF_Script_InitHintsFunc) NULL,
(AF_Script_ApplyHintsFunc) NULL
)
static const AF_Script_UniRangeRec af_deva_uniranges[] =
{
AF_UNIRANGE_REC( 0UL, 0UL )
};
#endif /* !AF_CONFIG_OPTION_INDIC */
AF_DEFINE_SCRIPT_CLASS(
af_deva_script_class,
AF_SCRIPT_DEVA,
(AF_Blue_Stringset)0, /* XXX */
AF_WRITING_SYSTEM_INDIC,
af_deva_uniranges,
'o' /* XXX */
)
/* END */