60 lines
1.2 KiB
C++
60 lines
1.2 KiB
C++
#include "hmtx.h"
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#include <arpa/inet.h>
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Hmtx::Hmtx(const std::string& p_tag, uint32_t p_checkSum, uint32_t p_offset, uint32_t p_length):
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Table(p_tag, p_checkSum, p_offset, p_length),
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numOfLongHorMetrics(0),
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longHorMetric(0)
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{
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}
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Hmtx::~Hmtx()
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{
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delete longHorMetric;
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}
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void Hmtx::read(const std::string& path)
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{
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if (numOfLongHorMetrics == 0) {
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throw 1;
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}
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std::ifstream file(path, std::ios::in | std::ios::binary);
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file.seekg(offset);
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char * buffer;
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buffer = new char[2];
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longHorMetric = new std::vector<HMetric>(numOfLongHorMetrics);
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for (int i = 0; i < numOfLongHorMetrics; ++i) {
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HMetric& met = longHorMetric->at(i);
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file.read(buffer, 2);
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uint16_t aw = ntohs(*((uint16_t*) buffer));
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file.read(buffer, 2);
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int16_t lsb = ntohs(*((int16_t*) buffer));
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met.advanceWidth = aw;
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met.leftSideBearing = lsb;
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}
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file.close();
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delete[] buffer;
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}
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Hmtx::HMetric::HMetric():
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advanceWidth(0),
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leftSideBearing(0)
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{
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}
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Hmtx::HMetric Hmtx::getMetric(uint16_t cid) const
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{
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if (cid >= longHorMetric->size()) {
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cid = longHorMetric->size() - 1;
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}
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return longHorMetric->at(cid);
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}
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