#ifndef _GESTION_H_INCLUDED
#define _GESTION_H_INCLUDED
#include <iostream>

class CGestionCaracteres{
private:
	int N;
	char* Vec;
public:
	CGestionCaracteres(){
		int N = 0;
		Vec = new char[N];
	}
	~CGestionCaracteres(){}
	//
	int getN(){
		return N;
	}
	char* getVec(){
		return Vec;
	}
	//
	void AgregarElemento(char x){
		//if (aux >= 65 && aux <= 90 || aux >= 97 && aux <= 122)
		char* Aux = new char[N + 1];

		if (ComprobarX(x) == false){
			N++;
			Vec[N - 1] = x;
		}
		else{
			Aux[0] = x;
			for (int i = 0; i < N; i++){
				Aux[i + 1] = Vec[i];
			}
			delete Vec;
			N++;
			Vec = Aux;
			delete Aux;
		}
	}
/* */
};

#endif _GESTION_H_INCLUDED

#pragma once
#include "Gestion.h"

namespace GestionCaracteres {

	using namespace System;
	using namespace System::ComponentModel;
	using namespace System::Collections;
	using namespace System::Windows::Forms;
	using namespace System::Data;
	using namespace System::Drawing;

	/// <summary>
	/// Summary for frmPrincipal
	/// </summary>
	public ref class frmPrincipal : public System::Windows::Forms::Form
	{
	private:
		CGestionCaracteres* gestion;
	public:
		frmPrincipal(void)
		{
			InitializeComponent();
			//
			//TODO: Add the constructor code here
			//
			gestion = new CGestionCaracteres();
		}
/* */
#pragma endregion
	private: System::Void btnAgregar_Click(System::Object^  sender, System::EventArgs^  e) {
		if (tbxAgregar->Text != ""){
			char caracter = Convert::ToChar(tbxAgregar->Text);
			if (caracter >= 65 && caracter <= 90 || caracter >= 97 && caracter <= 122){
				gestion->AgregarElemento(caracter);
				CargarLista();
			}
			else{
				MessageBox::Show("Introduzca un valor valido.");
			}
		}
		else{
			MessageBox::Show("Introduzca una letra.");
		}

		
	}
			 void CargarLista(){
				 lbxLetras->Items->Clear();
				 for (int i = 0; i < gestion->getN(); i++){
					 lbxLetras->Items->Add((gestion->getVec()[i]).ToString());
				 }
			 }
};
}