radio/lib/fontParser/tables/cmap.h

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2018-08-04 21:46:25 +00:00
#ifndef CMAP_H
#define CMAP_H
#include "table.h"
#include <list>
#include <map>
#include <vector>
struct Enc {
Enc(uint16_t pid, uint16_t eid, uint32_t off): platformId(pid), encodingId(eid), offset(off) {}
uint16_t platformId;
uint16_t encodingId;
uint32_t offset;
};
class MappingTable {
protected:
MappingTable(uint16_t p_f);
uint16_t format;
public:
static MappingTable* fromIfStream(std::ifstream& file);
virtual ~MappingTable();
virtual uint32_t getCID(uint32_t charCode) const = 0;
};
class Format4 : public MappingTable {
public:
Format4(char* data, uint16_t length);
~Format4();
uint32_t getCID(uint32_t charCode) const override;
private:
struct SegParams {
uint16_t endCode;
uint16_t startCode;
int16_t idDelta;
uint16_t idRangeOffset;
};
std::map<uint16_t, uint16_t> charCodesEndCode;
std::vector<SegParams>* segments;
std::vector<uint16_t>* glyphIndexArray;
};
class Cmap : public Table
{
public:
Cmap(const std::string& p_tag, uint32_t p_checkSum, uint32_t p_offset, uint32_t p_length);
~Cmap();
void read(const std::string & path) override;
uint32_t getCID(uint32_t charCode) const;
uint16_t version;
uint16_t numberOfTables;
private:
bool initialized;
MappingTable* mt;
};
#endif // CMAP_H