blog/cpp/fonts/core/tables/name/name.cpp

#include "name.h"
#include "../reader/buffer.h"
#include <iostream>

NameTable::NameTable(reader *rd, uint16_t length){
    read(rd, length);
}

void NameTable::readHeader(reader* rd){
    header.read(rd);
}

void NameTable::read(reader* rd, uint16_t length){
    header.read(rd); //read header

    for(auto i = 0; i<header.getRecordCount(); i++){
        readRecord(rd);
    }
        if(!rd->seek(header.getStorageOffset())){
        throw "file len too low";
    }
    auto len = length - header.getStorageOffset();
    auto data = rd->readString(len);
    buffer storageReader(data);
    for(auto it : header.getNameRecords()){
        readName(&storageReader, it);
    }
}


void NameTable::readRecord(reader* rd){
    nameRecord nr;
    nr.platformId = rd->readUint16();
    nr.encodingId = rd->readUint16();
    nr.languageId = rd->readUint16();
    nr.nameId = rd->readUint16();
    nr.length = rd->readUint16();
    nr.offset = rd->readUint16();
    nr.display();
    header.addNameRecord(nr);
}

void NameTable::readName(reader* rd, nameRecord nr){
    if(!rd->seek(nr.offset)){
        return;
    }
    
    std::string s = rd->readString(nr.length);
    names[nr.nameId] = s;
}

void NameTable::display(){
    std::cout<<"this is the name infomation of the font:"<<std::endl;
    header.display();
    for(auto it: names){
        std::cout<<"id:"<<it.first<<"\tvalue:"<<it.second<<std::endl;
    }
}