blog/cpp/fonts/core/tables/loca/loca.h

#ifndef __TABLE_LOCA_H__
#define __TABLE_LOCA_H__
#include "../../../reader/reader.h"
#define LocaShortFormat 0
#define LocaLongFormat 1
class LocaTable
{
private:
    uint16 _numGlyphs;
public:
    LocaTable():_numGlyphs(0){};
    ~LocaTable(){};
    LocaTable(uint16 i):_numGlyphs(i){}
    uint16 numGlyphs(){return _numGlyphs;}
};

class LocaTableShort: public LocaTable
{
private:
    uint16 _indexToLocFormat;
    std::vector<Offset16> _offsets;
public:
    LocaTableShort():_indexToLocFormat(LocaShortFormat){};
    ~LocaTableShort(){};
    LocaTableShort(uint16 num):LocaTable(num),_indexToLocFormat(LocaShortFormat){}
    LocaTableShort(uint16 num, reader *rd):LocaTable(num),_indexToLocFormat(LocaShortFormat){read(rd);}
    void read(reader *rd){
        for(auto i=0;i<numGlyphs();i++){
            Offset16 o = rd->readOffset16();
            _offsets.push_back(o);
        }
    }
    uint16 format(){return _indexToLocFormat;}
    std::vector<Offset16> offsets(){return _offsets;}
};


class LocaTableLong: public LocaTable
{
private:
    uint16 _indexToLocFormat;
    std::vector<Offset32> _offsets;
public:
    LocaTableLong():_indexToLocFormat(LocaLongFormat){};
    ~LocaTableLong(){};
    LocaTableLong(uint16 num):LocaTable(num),_indexToLocFormat(LocaLongFormat){}
    LocaTableLong(uint16 num, reader *rd):LocaTable(num),_indexToLocFormat(LocaLongFormat){read(rd);}
    void read(reader *rd){
        for(auto i=0;i<numGlyphs();i++){
            Offset32 o = rd->readOffset32();
            _offsets.push_back(o);
        }
    }
    uint16 format(){return _indexToLocFormat;}
    std::vector<Offset32> offsets(){return _offsets;}
};



#endif