core/ASCOfficePDFReader/UnicodeMap.h

#ifndef _UNICODE_MAP_H
#define _UNICODE_MAP_H

#include "CharTypes.h"
#include "../Common/TemporaryCS.h"

class StringExt;

//-------------------------------------------------------------------------------------------------------------------------------

enum UnicodeMapType
{
	unicodeMapUser,      // ×òåíèå èç ôàéëà
	unicodeMapResident,  // Ñòàòè÷åñêèé ñïèñîê
	unicodeMapFunc       // Óêàçàòåëü íà ôóíêöèþ
};

typedef int (*UnicodeMapFunc)(Unicode nUnicode, char *sBuffer, int nBufferSize);

struct UnicodeMapRange 
{
	Unicode      nStart;      // Äèàïàçîí þíèêîäíûõ ñèìâîëîâ
	Unicode      nEnd;        // 
	unsigned int unCode;      // Ïåðâûé êîä
	unsigned int nBytesCount; //
};

struct UnicodeMapExt;

//-------------------------------------------------------------------------------------------------------------------------------
// UnicodeMap
//-------------------------------------------------------------------------------------------------------------------------------

class UnicodeMap 
{
public:

	// Ñîçäàåì UnicodeMap ïî èìåíè <seEncodingName>. Óñòàíàâëèâàåì ñ÷åò÷èê ññûëîê ðàâíûé 1.
	static UnicodeMap *Parse(StringExt *seEncodingName, GlobalParams *pGlobalParams);

	// Ñîçäàåì Resident UnicodeMap.
	UnicodeMap(char *sEncodingName, BOOL bUnicodeOut, UnicodeMapRange *pRanges, int nLen);

	// Ñîçäàåì Resident UnicodeMap, êîòîðûé èñïîëüçóåò ôóíêöèþ âìåñòî äèàïàçîíà çíà÷åíèé.
	UnicodeMap(char *sEncodingName, BOOL bUnicodeOut, UnicodeMapFunc pFunction);

	~UnicodeMap();

	// Ñ÷åò÷èê ññûëîê
	void AddRef();
	void Release();

	StringExt *GetEncodingName() 
	{ 
		return m_seEncodingName; 
	}

	BOOL IsUnicode() 
	{ 
		return m_bUnicodeOut; 
	}


	// Ñîâïàäàþò ëè íàçâàíèÿ êîäèðîâîê?
	BOOL Match(StringExt *seEncodingName);

	// Íàõîäèì îáðàç òåêóùåãî þíèêîäíîãî çíà÷åíèÿ â êîäèðîâêå. Çàïîëíÿåì <sBuffer> ðåçóëüòàòîì è âîçâðàùàåì
	// êîëè÷åñòâî èñïîëüçóåìûõ áàéò. Íèêàêèõ ñòðîêîâûõ ðàçäåëèòåëåé (òèïà \0) íå ïèøåì. 
	int MapUnicode(Unicode nUnicode, char *sBuffer, int nBufferSize);

private:

	UnicodeMap(StringExt *seEncodingName);

private:

	StringExt     *m_seEncodingName;
	UnicodeMapType m_eType;
	BOOL           m_bUnicodeOut;
	union 
	{
		UnicodeMapRange *m_pRanges;	  // Äëÿ òèïîâ: User, Resident
		UnicodeMapFunc   m_pFunction; // Äëÿ òèïà Func
	};
	int            m_nLen;      // User, Resident
	UnicodeMapExt *m_pEMaps;    // User
	int            m_nEMapsLen; // User

	int            m_nRefCount;

	CRITICAL_SECTION m_oCS;

};

//-------------------------------------------------------------------------------------------------------------------------------
// UnicodeMapCache
//-------------------------------------------------------------------------------------------------------------------------------

#define unicodeMapCacheSize 4

class UnicodeMapCache 
{
public:

	UnicodeMapCache();
	~UnicodeMapCache();

	UnicodeMap *GetUnicodeMap(StringExt *seEncodingName, GlobalParams *pGlobalParams);

private:

	UnicodeMap *m_ppCache[unicodeMapCacheSize];
};

#endif /* _UNICODE_MAP_H */