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103 lines
2.5 KiB
103 lines
2.5 KiB
//========================================================================
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//
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// CMap.h
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//
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// Copyright 2001-2003 Glyph & Cog, LLC
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//
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//========================================================================
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#ifndef CMAP_H
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#define CMAP_H
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#include <aconf.h>
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#ifdef USE_GCC_PRAGMAS
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#pragma interface
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#endif
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#include "gtypes.h"
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#include "CharTypes.h"
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#if MULTITHREADED
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#include "GMutex.h"
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#endif
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class GString;
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struct CMapVectorEntry;
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class CMapCache;
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//------------------------------------------------------------------------
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class CMap {
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public:
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// Create the CMap specified by <collection> and <cMapName>. Sets
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// the initial reference count to 1. Returns NULL on failure.
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static CMap *parse(CMapCache *cache, GString *collectionA,
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GString *cMapNameA);
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~CMap();
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void incRefCnt();
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void decRefCnt();
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// Return collection name (<registry>-<ordering>).
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GString *getCollection() { return collection; }
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// Return true if this CMap matches the specified <collectionA>, and
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// <cMapNameA>.
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GBool match(GString *collectionA, GString *cMapNameA);
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// Return the CID corresponding to the character code starting at
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// <s>, which contains <len> bytes. Sets *<nUsed> to the number of
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// bytes used by the char code.
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CID getCID(char *s, int len, int *nUsed);
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// Return the writing mode (0=horizontal, 1=vertical).
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int getWMode() { return wMode; }
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private:
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CMap(GString *collectionA, GString *cMapNameA);
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CMap(GString *collectionA, GString *cMapNameA, int wModeA);
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void useCMap(CMapCache *cache, char *useName);
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void copyVector(CMapVectorEntry *dest, CMapVectorEntry *src);
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void addCodeSpace(CMapVectorEntry *vec, Guint start, Guint end,
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Guint nBytes);
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void addCIDs(Guint start, Guint end, Guint nBytes, CID firstCID);
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void freeCMapVector(CMapVectorEntry *vec);
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GString *collection;
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GString *cMapName;
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int wMode; // writing mode (0=horizontal, 1=vertical)
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CMapVectorEntry *vector; // vector for first byte (NULL for
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// identity CMap)
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int refCnt;
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#if MULTITHREADED
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GMutex mutex;
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#endif
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};
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//------------------------------------------------------------------------
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#define cMapCacheSize 4
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class CMapCache {
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public:
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CMapCache();
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~CMapCache();
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// Get the <cMapName> CMap for the specified character collection.
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// Increments its reference count; there will be one reference for
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// the cache plus one for the caller of this function. Returns NULL
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// on failure.
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CMap *getCMap(GString *collection, GString *cMapName);
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private:
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CMap *cache[cMapCacheSize];
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};
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#endif
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