source/charconverters.h

   1 /* This file is part of Shapes.
   2  *
   3  * Shapes is free software: you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation, either version 3 of the License, or
   6  * any later version.
   7  *
   8  * Shapes is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with Shapes.  If not, see <http://www.gnu.org/licenses/>.
  15  *
  16  * Copyright 2008, 2010 Henrik Tidefelt
  17  */
  18
  19 #pragma once
  20
  21 #include "refcount.h"   // Why?!  (You get strange compiler errors if you dont include refcount.h here.)
  22
  23 #include "FontMetrics_decls.h"
  24 #include "config.h"
  25
  26 #include <iconv.h>
  27 #include <stdint.h>
  28
  29 #ifdef HAVE_FT2
  30 #include <ft2build.h>
  31 #include FT_FREETYPE_H
  32 #endif
  33
  34 namespace Shapes
  35 {
  36         namespace Helpers
  37         {
  38
  39                 iconv_t requireUTF8ToMacRomanConverter( bool cleanup = false );
  40                 iconv_t requireMacRomanToUTF8Converter( bool cleanup = false );
  41
  42                 iconv_t requireUTF8ToUCS4Converter( bool cleanup = false );
  43                 iconv_t requireUCS4ToUTF8Converter( bool cleanup = false );
  44
  45                 iconv_t requireUTF16BEToUCS4Converter( bool cleanup = false );
  46                 iconv_t requireUCS4ToUTF16BEConverter( bool cleanup = false );
  47
  48                 iconv_t requireUTF8ToASCIIConverter( bool cleanup = false );
  49                 iconv_t requireUTF8ToWinANSIConverter( bool cleanup = false );
  50                 iconv_t requireUTF8ToUTF16BEConverter( bool cleanup = false );
  51
  52                 iconv_t requireUCS4ToMacRomanConverter( bool cleanup = false );
  53
  54
  55                 const FontMetrics::GlyphList & requireGlyphList( bool cleanup = false );
  56                 const FontMetrics::CharacterEncoding & requireMacRomanEncoding( bool cleanup = false );
  57
  58         }
  59
  60         namespace Kernel
  61         {
  62
  63                 class UnicodeCodePoint
  64                 {
  65                 public:
  66                         typedef uint32_t value_type; /* Type to hold the code point in UCS4 format. */
  67                 private:
  68                         value_type value_;
  69                 public:
  70                         UnicodeCodePoint( ){ }
  71                         UnicodeCodePoint( value_type value )
  72                                 : value_( value )
  73                         { }
  74                         UnicodeCodePoint & operator = ( const UnicodeCodePoint & orig ) { value_ = orig.value_; return *this; }
  75                         value_type get_UCS4( ) const { return value_; }
  76 #ifdef HAVE_FT2
  77                         FT_ULong get_FT_charcode( ) const { return value_; }
  78 #endif
  79                         unsigned char get_MacRoman( ) const;
  80                         void decode_UTF8( const char ** src, size_t * src_avail );
  81                         void decode_UCS4( const char ** src, size_t * src_avail );
  82                         void encode_UTF8( char ** dst, size_t * dst_avail ) const;
  83                         void encode_UTF16BE( char ** dst, size_t * dst_avail ) const;
  84
  85                         void decode_UTF8( const char * src );
  86                         void decode_UCS4( const char * src );
  87
  88                         void decode_glyph_name( const char * name );
  89
  90                         bool operator == ( const UnicodeCodePoint & other ) const { return value_ == other.value_; }
  91                         bool operator != ( const UnicodeCodePoint & other ) const { return value_ != other.value_; }
  92                         bool operator < ( const UnicodeCodePoint & other ) const { return value_ < other.value_; }
  93                         bool operator <= ( const UnicodeCodePoint & other ) const { return value_ <= other.value_; }
  94                         bool operator > ( const UnicodeCodePoint & other ) const { return value_ > other.value_; }
  95                         bool operator >= ( const UnicodeCodePoint & other ) const { return value_ >= other.value_; }
  96
  97                         static UnicodeCodePoint SPACE;
  98                         static UnicodeCodePoint NEWLINE;
  99                 };
 100
 101         }
 102 }