How to convert QVariant to my custom object?

[troorl_ua]

Hi!
I have custom model with list of my custom objects - QList<TBook *> bookList;
Also I have delegate in this model. In delegate I have index.model()->data(index, Qt::DisplayRole) - this is QVariant. How can I convert this to TBook? Here is definition of my custom class:

class TBook
{
	public:
		TBook(QString, QString, uint, QString, qreal);
		TBook(){};
		~TBook();
		void setData(QString, QString, uint, QString, qreal);
		QString getTitle();
		QString getAuthor();
		uint getGenre();
		QString getPath();
		qreal getProgress();
		static QStringList getAllGenres();
		void setTitle(QString);
 
	private:
		QString title;
		QString author;
		uint genre;
		QString path;
		qreal progress;
};
Q_DECLARE_METATYPE(TBook);

class TBook
{
	public:
		TBook(QString, QString, uint, QString, qreal);
		TBook(){};
		~TBook();
		void setData(QString, QString, uint, QString, qreal);
		QString getTitle();
		QString getAuthor();
		uint getGenre();
		QString getPath();
		qreal getProgress();
		static QStringList getAllGenres();
		void setTitle(QString);
	
	private:
		QString title;
		QString author;
		uint genre;
		QString path;
		qreal progress;
};
Q_DECLARE_METATYPE(TBook);

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Please, help me

[marcel]

You can't really do that, not in a safe way, due to limitations of C++ unions -> limitations of QVariant.

The most elegant way would be to create user roles for every relevant getter of TBook. For example, for TBook::getTitle you create the BookTitleRole, and so on.
You should use these roles when requesting data from the model.

Regards

[jpn]

TBook book = qvariant_cast<TBook>(variant);

TBook book = qvariant_cast<TBook>(variant);

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[troorl_ua]

TBook book = qvariant_cast<TBook>(variant);

TBook book = qvariant_cast<TBook>(variant);

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Yes! It's working! Greate thanks!