Listing 2: Support for lists of strings

//LbweRep.h

//A class that allows conversions from std::list<CString>
//to std::vector<CString> and back.  Class used internally
//by ListBoxWithExtras to represent the list of strings.

#ifndef LBWEREP_H
#define LBWEREP_H

#include <new.h>
#include <fstream.h>
namespace std {
#include <vector.h>
#include <list.h>
#include <deque.h>
}

class LbweRep : public std::vector<CString>
{
public:
    LbweRep();
    ~LbweRep();
    LbweRep& operator=(const std::list<CString>&);
    LbweRep& operator=(const std::vector<CString>&);
    LbweRep& operator=(const CStringList&);
    void MakeList(std::list<CString>&);
    void MakeVector(std::vector<CString>& v) {v = *this;};
    void MakeCStringList(CStringList&);
};

#endif

//lbwe.cpp

#include "stdafx.h"
#include "LbweRep.h"

//Construction and Destruction

LbweRep::LbweRep() {}
LbweRep::~LbweRep() {}

//The only purpose for LbweRep is to make using an LBWE
//easier.  The box will populate itself from an embedded public
//LbweRep object.  The box information is also available from
//the LbweRep at any time.  So this is a handy way to to get 
//data from either a modal or modeless LBWE.


LbweRep& LbweRep::operator=(const std::vector<CString>& v)

//Convert an std::vector<CString> into an LbweRep

{
    erase(begin(), end());
    for (unsigned i = 0; i < v.size(); i++)
        push_back(v[i]);
    return *this;
}


LbweRep& LbweRep::operator=(const std::list<CString>& l)

// Convert an std::list<CString> into an LbweRep

{
    erase(begin(), end());
    std::list<CString>::const_iterator i;
    for (i = l.begin(); i != l.end(); i++)
        push_back(*i);
    return *this;
}

LbweRep& LbweRep::operator=(const CStringList& l)

// Convert CStringList to an LbweRep

{
    erase(begin(), end());
    POSITION pos = l.GetHeadPosition();
    while (pos)
    {
        push_back(l.GetNext(pos));
    }
    return *this;
}

void LbweRep::MakeCStringList(CStringList& l)
//make CStringList from LbweRep
{
    l.RemoveAll();
    LbweRep::iterator i;
    for (i = begin(); i != end(); i++)
        l.AddTail(*i);
}

void LbweRep::MakeList(std::list<CString>& l)
//makes list from LbweRep
{
    LbweRep::iterator i;
    l.erase(l.begin(), l.end());
    for (i = begin(); i != end(); i++)
        l.push_back(*i);
}

//End of File