#include <QtGui/QApplication>
#include "qtpass.h"
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QtPass w;
    w.show();
    return a.exec();
}

#ifndef QTPASS_H
#define QTPASS_H
 
#include <QtGui>
 
class QLineEdit;
class QPushButton;
class QLabel;
class QSpinBox;
class QString;
 
class QtPass : public QWidget {
    Q_OBJECT
 
public:
    QtPass(QWidget *parent = 0);
 
private slots:
    void GenerarPass();
    void About();
 
private:
    QString *pass;
    QLineEdit *LinePass;
    QPushButton *ButtonGen, *ButtonAbout, *ButtonSalir;
    QLabel *LabelPass;
    QSpinBox *SpinChar;
    QHBoxLayout *TopLayout;
    QHBoxLayout *BottomLayout;
    QVBoxLayout * MainLayout;
 
 
};
 
#endif // QTPASS_H

#include "qtpass.h"
 
QtPass::QtPass(QWidget *parent) :
    QWidget(parent)
   {
//Creamos los Widgets que vamos a necesitar
    this->LinePass = new QLineEdit;
    this->SpinChar = new QSpinBox;
    this->ButtonGen = new QPushButton("&Generar");
    this->ButtonAbout = new QPushButton("&About");
    this->ButtonSalir = new QPushButton("&Salir");
    this->LabelPass = new QLabel("Password: ");
 
//Configuramos algunos Widgets
    this->ButtonGen->setDefault(true);
    this->LinePass->setReadOnly(true);
    this->SpinChar->setMaximum(32);
    this->SpinChar->setMinimum(8);
 
//Preparamos los Layouts que necesitaremos para organizar.
    this->TopLayout = new QHBoxLayout;
    this->BottomLayout = new QHBoxLayout;
    this->MainLayout = new QVBoxLayout;
 
//Empezamos la organizacion de los Widgets
    this->TopLayout->addWidget(this->LabelPass);
    this->TopLayout->addWidget(this->LinePass);
    this->TopLayout->addWidget(this->SpinChar);
    this->BottomLayout->addWidget(this->ButtonGen);
    this->BottomLayout->addWidget(this->ButtonAbout);
    this->BottomLayout->addWidget(this->ButtonSalir);
    this->MainLayout->addLayout(this->TopLayout);
    this->MainLayout->addLayout(this->BottomLayout);
 
//Añadimos titulo y el Layout principal a la ventana.
    this->setWindowTitle("QtPassGen by Lord R.N.A.");
    this->setLayout(this->MainLayout);
    this->setFixedSize(420,80);
 
//Realizamos las conexiones que necesitaremos.
    connect(this->ButtonSalir,SIGNAL(clicked()),this,SLOT(close()));
    connect(this->ButtonGen,SIGNAL(clicked()),this,SLOT(GenerarPass()));
    connect(this->ButtonAbout,SIGNAL(clicked()),this,SLOT(About()));
    }
 
//La funcion encargada de generar el password.
void QtPass::GenerarPass() 
{
this->pass = new QString;
QTime *seed = new QTime;
seed->start(); //Para inicializar el puntero seed con la hora actual. 
qsrand(seed->msec()); //La semilla para qrand();
for(int i=0;this->SpinChar->value()>i;i++)
{
    this->pass->insert(i,QChar(qrand()%95 +33));//Inserta en la posicion i, el char devuelto por QChar();
    if(this->pass->at(i)==QChar(96))i--;
 
}
this->LinePass->setText(*this->pass);
delete this->pass;
delete seed;
}
 
//El MessageBox para el About.
void QtPass::About()
{
    QMessageBox::about(this,"About","<b>QtPassGen v1.0 by Lord R.N.A.</b> <br><br>"
                       "Aplicacion Generadora de Passwords <br>Qt 4.6"
                       "<br><br><b>R.N.A. Labs.</b>");
}