ref: 5d651faa702da095f84c805ff013cd1a7869ec31
dir: /src/autofit/afindic.c/
/**************************************************************************** * * afindic.c * * Auto-fitter hinting routines for Indic writing system (body). * * Copyright (C) 2007-2021 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" #include "afcjk.h" #ifdef AF_CONFIG_OPTION_INDIC #include "afindic.h" #include "aferrors.h" 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( FT_UInt glyph_index, AF_GlyphHints hints, FT_Outline* outline, AF_CJKMetrics metrics ) { /* use CJK routines */ return af_cjk_hints_apply( glyph_index, hints, outline, metrics ); } /* Extract standard_width from writing system/script specific */ /* metrics class. */ static void af_indic_get_standard_widths( AF_CJKMetrics metrics, FT_Pos* stdHW, FT_Pos* stdVW ) { if ( stdHW ) *stdHW = metrics->axis[AF_DIMENSION_VERT].standard_width; if ( stdVW ) *stdVW = metrics->axis[AF_DIMENSION_HORZ].standard_width; } /*************************************************************************/ /*************************************************************************/ /***** *****/ /***** 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, /* style_metrics_init */ (AF_WritingSystem_ScaleMetricsFunc)af_indic_metrics_scale, /* style_metrics_scale */ (AF_WritingSystem_DoneMetricsFunc) NULL, /* style_metrics_done */ (AF_WritingSystem_GetStdWidthsFunc)af_indic_get_standard_widths, /* style_metrics_getstdw */ (AF_WritingSystem_InitHintsFunc) af_indic_hints_init, /* style_hints_init */ (AF_WritingSystem_ApplyHintsFunc) af_indic_hints_apply /* style_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, /* style_metrics_init */ (AF_WritingSystem_ScaleMetricsFunc)NULL, /* style_metrics_scale */ (AF_WritingSystem_DoneMetricsFunc) NULL, /* style_metrics_done */ (AF_WritingSystem_GetStdWidthsFunc)NULL, /* style_metrics_getstdw */ (AF_WritingSystem_InitHintsFunc) NULL, /* style_hints_init */ (AF_WritingSystem_ApplyHintsFunc) NULL /* style_hints_apply */ ) #endif /* !AF_CONFIG_OPTION_INDIC */ /* END */