| /***************************************************************************/ |
| /* */ |
| /* ftpfr.c */ |
| /* */ |
| /* FreeType API for accessing PFR-specific data */ |
| /* */ |
| /* Copyright 2002 by */ |
| /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
| /* */ |
| /* 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 <ft2build.h> |
| #include FT_INTERNAL_PFR_H |
| #include FT_INTERNAL_OBJECTS_H |
| |
| |
| /* check the format */ |
| static FT_Error |
| ft_pfr_check( FT_Face face, |
| FT_PFR_Service *aservice ) |
| { |
| FT_Error error = FT_Err_Bad_Argument; |
| |
| if ( face && face->driver ) |
| { |
| FT_Module module = (FT_Module) face->driver; |
| const char* name = module->clazz->module_name; |
| |
| if ( name[0] == 'p' && |
| name[1] == 'f' && |
| name[2] == 'r' && |
| name[4] == 0 ) |
| { |
| *aservice = (FT_PFR_Service) module->clazz->module_interface; |
| error = 0; |
| } |
| } |
| return error; |
| } |
| |
| |
| |
| FT_EXPORT_DEF( FT_Error ) |
| FT_Get_PFR_Metrics( FT_Face face, |
| FT_UInt *aoutline_resolution, |
| FT_UInt *ametrics_resolution, |
| FT_Fixed *ametrics_x_scale, |
| FT_Fixed *ametrics_y_scale ) |
| { |
| FT_Error error; |
| FT_PFR_Service service; |
| |
| error = ft_pfr_check( face, &service ); |
| if ( !error ) |
| { |
| error = service->get_metrics( face, |
| aoutline_resolution, |
| ametrics_resolution, |
| ametrics_x_scale, |
| ametrics_y_scale ); |
| } |
| return error; |
| } |
| |
| FT_EXPORT_DEF( FT_Error ) |
| FT_Get_PFR_Kerning( FT_Face face, |
| FT_UInt left, |
| FT_UInt right, |
| FT_Vector *avector ) |
| { |
| FT_Error error; |
| FT_PFR_Service service; |
| |
| error = ft_pfr_check( face, &service ); |
| if ( !error ) |
| { |
| error = service->get_kerning( face, left, right, avector ); |
| } |
| return error; |
| } |
| |
| |
| FT_EXPORT_DEF( FT_Error ) |
| FT_Get_PFR_Advance( FT_Face face, |
| FT_UInt gindex, |
| FT_Pos *aadvance ) |
| { |
| FT_Error error; |
| FT_PFR_Service service; |
| |
| error = ft_pfr_check( face, &service ); |
| if ( !error ) |
| { |
| error = service->get_advance( face, gindex, aadvance ); |
| } |
| return error; |
| } |
| |
| /* END */ |