QWizard creating objects dynamically

[afflictedd2]

Hi everyone,

I'm trying to build a wizard in which I specify a number of something, so that when I press next I should get that number of objects in the next screen. Problem is.. If I go back and change that number of objects and press next.. the number of objects will go unchanged. How do I tell QWizard to do this?

This is the simplified code, it runs:

#ifndef CLASSWIZARD_H
#define CLASSWIZARD_H
 
#include <QWizard>
 
QT_BEGIN_NAMESPACE
class QCheckBox;
class QGroupBox;
class QLabel;
class QSpinBox;
class QLineEdit;
class QRadioButton;
class QVector<QLineEdit>;
QT_END_NAMESPACE
 
//! [0]
class ClassWizard : public QWizard
{
    Q_OBJECT
 
public:
    ClassWizard(QWidget *parent = 0);
};
 
class NumObjectsPage : public QWizardPage
{
    Q_OBJECT
 
public:
    NumObjectsPage(QWidget *parent = 0);
 
private:
    QLabel *lblNumObjs;
    QSpinBox *leNumObjs;
};
 
class ObjectsPage : public QWizardPage
{
    Q_OBJECT
 
public:
    ObjectsPage(QWidget *parent = 0);
 
protected:
    void initializePage();
 
private:
	QVector<QSpinBox*> sbObjs; 
	QVector<QLabel*> lblObjs; 
};
 
#endif

#ifndef CLASSWIZARD_H
#define CLASSWIZARD_H

#include <QWizard>

QT_BEGIN_NAMESPACE
class QCheckBox;
class QGroupBox;
class QLabel;
class QSpinBox;
class QLineEdit;
class QRadioButton;
class QVector<QLineEdit>;
QT_END_NAMESPACE

//! [0]
class ClassWizard : public QWizard
{
    Q_OBJECT

public:
    ClassWizard(QWidget *parent = 0);
};

class NumObjectsPage : public QWizardPage
{
    Q_OBJECT

public:
    NumObjectsPage(QWidget *parent = 0);

private:
    QLabel *lblNumObjs;
    QSpinBox *leNumObjs;
};

class ObjectsPage : public QWizardPage
{
    Q_OBJECT

public:
    ObjectsPage(QWidget *parent = 0);

protected:
    void initializePage();

private:
	QVector<QSpinBox*> sbObjs; 
	QVector<QLabel*> lblObjs; 
};

#endif

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#include <QtGui>
#include "classwizard.h"
 
ClassWizard::ClassWizard(QWidget *parent)
    : QWizard(parent)
{
    addPage(new NumObjectsPage);
    addPage(new ObjectsPage);
 
	setWindowTitle(tr("Wizard"));
}
 
 
NumObjectsPage::NumObjectsPage(QWidget *parent)
    : QWizardPage(parent)
{
    lblNumObjs = new QLabel(tr("Number of Objects:"));
    leNumObjs = new QSpinBox();
    lblNumObjs->setBuddy(leNumObjs);
 
    registerField("numObjs*", leNumObjs);
 
    QGridLayout *layout = new QGridLayout;
    layout->addWidget(lblNumObjs, 0, 0);
    layout->addWidget(leNumObjs, 0, 1);
 
    setLayout(layout);
}
 
ObjectsPage::ObjectsPage(QWidget *parent)
    : QWizardPage(parent)
{
}
 
void ObjectsPage::initializePage()
{
    QGridLayout *layout	   = new QGridLayout;
	QSpinBox* sbVel        = NULL;
	QLabel* lblVel         = NULL;
 
    QString numLayers = field("numObjs").toString();
	int num                = numLayers.toInt();
 
	for (int i = 0; i < num; ++i) {
		sbVel = new QSpinBox();
		lblVel = new QLabel;
		lblVel->setText("Capa " + QString::number(i+1));
		sbObjs.push_back(sbVel);
		lblObjs.push_back(lblVel);
	    layout->addWidget(lblVel, i, 0);
	    layout->addWidget(sbVel, i, 1);
	}
 
	setLayout(layout);
 
}

#include <QtGui>
#include "classwizard.h"

ClassWizard::ClassWizard(QWidget *parent)
    : QWizard(parent)
{
    addPage(new NumObjectsPage);
    addPage(new ObjectsPage);

	setWindowTitle(tr("Wizard"));
}


NumObjectsPage::NumObjectsPage(QWidget *parent)
    : QWizardPage(parent)
{
    lblNumObjs = new QLabel(tr("Number of Objects:"));
    leNumObjs = new QSpinBox();
    lblNumObjs->setBuddy(leNumObjs);

    registerField("numObjs*", leNumObjs);

    QGridLayout *layout = new QGridLayout;
    layout->addWidget(lblNumObjs, 0, 0);
    layout->addWidget(leNumObjs, 0, 1);

    setLayout(layout);
}

ObjectsPage::ObjectsPage(QWidget *parent)
    : QWizardPage(parent)
{
}

void ObjectsPage::initializePage()
{
    QGridLayout *layout	   = new QGridLayout;
	QSpinBox* sbVel        = NULL;
	QLabel* lblVel         = NULL;
	
    QString numLayers = field("numObjs").toString();
	int num                = numLayers.toInt();

	for (int i = 0; i < num; ++i) {
		sbVel = new QSpinBox();
		lblVel = new QLabel;
		lblVel->setText("Capa " + QString::number(i+1));
		sbObjs.push_back(sbVel);
		lblObjs.push_back(lblVel);
	    layout->addWidget(lblVel, i, 0);
	    layout->addWidget(sbVel, i, 1);
	}
	
	setLayout(layout);
    
}

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#include <QApplication>
#include "classwizard.h"
 
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    ClassWizard wizard;
    wizard.show();
    return app.exec();
}

#include <QApplication>
#include "classwizard.h"

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    ClassWizard wizard;
    wizard.show();
    return app.exec();
}

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