History.cpp

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#include "History.h"

#include <fstream>
#include <sstream>
#include <string>

#include "Application.h"
#include "PvlObject.h"

using namespace std;

namespace Isis {

  History::History(const QString &name) : Isis::Blob(name, "History") {
    p_history.setTerminator("");
  }

  History::History(const QString &name, const QString &file) :
    Isis::Blob(name, "History") {
    Blob::Read(file);
  }

  History::~History() {
  }

  void History::AddEntry() {
    PvlObject hist = Isis::iApp->History();
    AddEntry(hist);
  }

  void History::AddEntry(Isis::PvlObject &obj) {
    p_history.addObject(obj);
  }

  void History::WriteInit() {
    ostringstream ostr;
    if (p_nbytes > 0) ostr << std::endl;
    ostr << p_history;
    string histStr = ostr.str();
    int bytes = histStr.size();

    char *temp = p_buffer;
    p_buffer = new char[p_nbytes+bytes];
    if (temp != NULL) memcpy(p_buffer, temp, p_nbytes);
    const char *ptr = histStr.c_str();
    memcpy(&p_buffer[p_nbytes], (void *)ptr, bytes);
    p_nbytes += bytes;

    if (temp != NULL) delete [] temp;
  }

  Pvl History::ReturnHist() {
    Pvl pvl;
    stringstream os;
    for (int i = 0; i < p_nbytes; i++) os << p_buffer[i];
    os >> pvl;
    return pvl;
  }

  void History::Read(const Isis::Pvl &pvl, std::istream &is) {
    try {
      Blob::Read(pvl, is);
    }
    catch (IException &e) {
    }
  }
}