QWizard, QComboBox and registerField() issue

[RThaden]

Hi all,

I have implemented a QWizard with several pages which have combo boxes.
I fill the boxes itemData fields (with ints), because I don't need the index of the selected item but the ints I put into the itemData.
With registerField() I can nicely get the current index, because QWizard automatically delivers it with an internal mechanism.

Is there a possibility to tell registerField() to store the QVariant of the itemData instead of the currentIndex().

If not, my solution would be, to store a list of the ints I put into the itemData, implement a Get function for the list and look up the int with the currentIndex I can retrieve with the field() method.
Or to drop the registerField() method and use my own signals to deliver the itemData of a comboBox from the current page to the QWizard instance and use Get methods to retrieve it from the outside.

What 's the best method here?

Any hint appreciated.

Thanks,

Rainer

[RThaden]

Nobody?

OK, think, I'll have to do it myself. Found the following solution:

Derive a class from QComboBox and give it a property currentItemData.

class QWizardComboBox : public QComboBox
{
	Q_OBJECT
	QVariant currentItemData;
public:
	QWizardComboBox(QWidget* parent=0) : QComboBox(parent) 
	{
		currentItemData=QVariant();
		connect(this, SIGNAL(currentIndexChanged(int)), this, SLOT(onCurrentIdxChanged(int)));
	};
	Q_PROPERTY(QVariant currentItemData READ getCurrentItemData WRITE setCurrentItemData)
	QVariant getCurrentItemData() const {return currentItemData;};
public Q_SLOTS:
	void onCurrentIdxChanged(int idx)
	{
		setCurrentItemData(itemData(idx));
	}
	void setCurrentItemData(QVariant data)
	{
		if (data!=currentItemData)
		{
			currentItemData=data;
			currentItemDataChanged(currentItemData);
		}
	}
	Q_SIGNALS:
	void currentItemDataChanged(QVariant);
};

class QWizardComboBox : public QComboBox
{
	Q_OBJECT
	QVariant currentItemData;
public:
	QWizardComboBox(QWidget* parent=0) : QComboBox(parent) 
	{
		currentItemData=QVariant();
		connect(this, SIGNAL(currentIndexChanged(int)), this, SLOT(onCurrentIdxChanged(int)));
	};
	Q_PROPERTY(QVariant currentItemData READ getCurrentItemData WRITE setCurrentItemData)
	QVariant getCurrentItemData() const {return currentItemData;};
public Q_SLOTS:
	void onCurrentIdxChanged(int idx)
	{
		setCurrentItemData(itemData(idx));
	}
	void setCurrentItemData(QVariant data)
	{
		if (data!=currentItemData)
		{
			currentItemData=data;
			currentItemDataChanged(currentItemData);
		}
	}
	Q_SIGNALS:
	void currentItemDataChanged(QVariant);
};

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In the QWizard constructor, _before_ using setPage or addPage:

setDefaultProperty("QWizardComboBox", "currentItemData", "currentItemDataChanged");

setDefaultProperty("QWizardComboBox", "currentItemData", "currentItemDataChanged");

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This tells the wizard to use the property currentItemData whenever the signal currentItemDataChanged is emitted (instead of currentIndex and currentIndexChanged).

Hope that helps anyone.

Regards,

Rainer