mirror of
https://github.com/AquariaOSE/Aquaria.git
synced 2024-11-25 17:53:47 +00:00
136 lines
3.9 KiB
C++
136 lines
3.9 KiB
C++
#ifndef __FTCharmap__
|
|
#define __FTCharmap__
|
|
|
|
|
|
#include <ft2build.h>
|
|
#include FT_FREETYPE_H
|
|
#include FT_GLYPH_H
|
|
|
|
#include "FTCharToGlyphIndexMap.h"
|
|
|
|
#include "FTGL.h"
|
|
|
|
|
|
/**
|
|
* FTCharmap takes care of specifying the encoding for a font and mapping
|
|
* character codes to glyph indices.
|
|
*
|
|
* It doesn't preprocess all indices, only on an as needed basis. This may
|
|
* seem like a performance penalty but it is quicker than using the 'raw'
|
|
* freetype calls and will save significant amounts of memory when dealing
|
|
* with unicode encoding
|
|
*
|
|
* @see "Freetype 2 Documentation"
|
|
*
|
|
*/
|
|
|
|
class FTFace;
|
|
|
|
class FTGL_EXPORT FTCharmap
|
|
{
|
|
public:
|
|
/**
|
|
* Constructor
|
|
*/
|
|
FTCharmap( FTFace* face);
|
|
|
|
/**
|
|
* Destructor
|
|
*/
|
|
virtual ~FTCharmap();
|
|
|
|
/**
|
|
* Queries for the current character map code.
|
|
*
|
|
* @return The current character map code.
|
|
*/
|
|
FT_Encoding Encoding() const { return ftEncoding;}
|
|
|
|
/**
|
|
* Sets the character map for the face.
|
|
* Valid encodings as at Freetype 2.0.4
|
|
* ft_encoding_none
|
|
* ft_encoding_symbol
|
|
* ft_encoding_unicode
|
|
* ft_encoding_latin_2
|
|
* ft_encoding_sjis
|
|
* ft_encoding_gb2312
|
|
* ft_encoding_big5
|
|
* ft_encoding_wansung
|
|
* ft_encoding_johab
|
|
* ft_encoding_adobe_standard
|
|
* ft_encoding_adobe_expert
|
|
* ft_encoding_adobe_custom
|
|
* ft_encoding_apple_roman
|
|
*
|
|
* @param encoding the Freetype encoding symbol. See above.
|
|
* @return <code>true</code> if charmap was valid and set
|
|
* correctly. If the requested encoding is
|
|
* unavailable it will be set to ft_encoding_none.
|
|
*/
|
|
bool CharMap( FT_Encoding encoding);
|
|
|
|
/**
|
|
* Get the FTGlyphContainer index of the input character.
|
|
*
|
|
* @param characterCode The character code of the requested glyph in
|
|
* the current encoding eg apple roman.
|
|
* @return The FTGlyphContainer index for the character or zero
|
|
* if it wasn't found
|
|
*/
|
|
unsigned int GlyphListIndex( const unsigned int characterCode);
|
|
|
|
/**
|
|
* Get the font glyph index of the input character.
|
|
*
|
|
* @param characterCode The character code of the requested glyph in
|
|
* the current encoding eg apple roman.
|
|
* @return The glyph index for the character.
|
|
*/
|
|
unsigned int FontIndex( const unsigned int characterCode);
|
|
|
|
/**
|
|
* Set the FTGlyphContainer index of the character code.
|
|
*
|
|
* @param characterCode The character code of the requested glyph in
|
|
* the current encoding eg apple roman.
|
|
* @param containerIndex The index into the FTGlyphContainer of the
|
|
* character code.
|
|
*/
|
|
void InsertIndex( const unsigned int characterCode, const unsigned int containerIndex);
|
|
|
|
/**
|
|
* Queries for errors.
|
|
*
|
|
* @return The current error code. Zero means no error.
|
|
*/
|
|
FT_Error Error() const { return err;}
|
|
|
|
private:
|
|
/**
|
|
* Current character map code.
|
|
*/
|
|
FT_Encoding ftEncoding;
|
|
|
|
/**
|
|
* The current Freetype face.
|
|
*/
|
|
const FT_Face ftFace;
|
|
|
|
/**
|
|
* A structure that maps glyph indices to character codes
|
|
*
|
|
* < character code, face glyph index>
|
|
*/
|
|
typedef FTCharToGlyphIndexMap CharacterMap;
|
|
CharacterMap charMap;
|
|
|
|
/**
|
|
* Current error code.
|
|
*/
|
|
FT_Error err;
|
|
|
|
};
|
|
|
|
|
|
#endif // __FTCharmap__
|