QWizard creating objects dynamically

[afflictedd2]

Hi,

• use QWizard::initializePage ( int id ) to get the current QWizardPage via QWizard::page ( int id ).
• Get your layout via children() if you use designer or use your pointer. (Don't create a new one!)
• Remove/add widgets according to the number

Lykurg

Hmm do you have a snippet of code / example for this. I just can't picture what you're telling me in code.

[Lykurg]

Ok, i try.
You have 2 pages in an QWizard. Already full designed (in designer) and on the second page is an empty layout for the "something" which number gets defined on page1.

XYZ::initializePage(int id)
{
  if (id==1) // page2
  {
    QWidget *w = page(id);
    // finding the layout or when hand coded use the pointer
    // to the layout direct
    QLayout *layout = w->findChild<QLayout *>("nameSetInDesigner");
    // and now populate the "something": cnt is the number;
    if (cnt < layout->findChild<Something *>())
    {
      //remove
      Something *smt = layout->findChild<Something *>().last();
      layout->removeWidget(smt);
      delete smt;
    }
    else
    {
      //add
      layout->addWidget(new Something(layout));
    }
  }
}

XYZ::initializePage(int id)
{
  if (id==1) // page2
  {
    QWidget *w = page(id);
    // finding the layout or when hand coded use the pointer
    // to the layout direct
    QLayout *layout = w->findChild<QLayout *>("nameSetInDesigner");
    // and now populate the "something": cnt is the number;
    if (cnt < layout->findChild<Something *>())
    {
      //remove
      Something *smt = layout->findChild<Something *>().last();
      layout->removeWidget(smt);
      delete smt;
    }
    else
    {
      //add
      layout->addWidget(new Something(layout));
    }
  }
}

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Not proofed!

[afflictedd2]

Hi everyone,

This time I'm facing a new problem :\. When I register a field, in the initializePage() I cannot go back and forth again in the wizard because it will attempt to register that field again. Is it possible to unregister a field when I go back?

void ObjectsPage::initializePage()
{
    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();
        sbVel->setMinimum(500);
        sbVel->setMaximum(20000);
        sbVel->setSingleStep(500);
        sbVel->setValue((i+1)*500);
 
		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);
        registerField("sbVel" + QString::number(i), sbObjs[i]);
	}
 
    setLayout(layout);
}

void ObjectsPage::initializePage()
{
    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();
        sbVel->setMinimum(500);
        sbVel->setMaximum(20000);
        sbVel->setSingleStep(500);
        sbVel->setValue((i+1)*500);

		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);
        registerField("sbVel" + QString::number(i), sbObjs[i]);
	}

    setLayout(layout);
}

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