QListView with custom model and styleditem delegate

[vmjafar]

Hi,

i have qlistview with a model and styled item delegate ,in my delegate i have overrieded sizehint() method,in which one parameter is qmodel index .is there any way to get my model object from qmodel index.my code is as follows

//list model for qlistview
class MyListViewModel : public QAbstractListModel
{
	Q_OBJECT

public:

	MyListViewModel(std::vector<MyModel*>* modelList, QObject* parent = 0);
	int rowCount(const QModelIndex &parent = QModelIndex()) const;
	QVariant data(const QModelIndex &index, int role) const;


	std::vector<MyModel*>* m_pModelList;
};

//MyModel.cpp

class MyModel
{
public:
	MyModel();
	MyModel(string name);
	~MyModel();
	string name;
};

//delegate

class MyDelegate : public QStyledItemDelegate
{
	Q_OBJECT
public:
	//enum datarole { Title = Qt::UserRole + 100, Start, Action, Stop };

	MyDelegate();
	~MyDelegate();

	void paint(QPainter *painter,
		const QStyleOptionViewItem &option,
		const QModelIndex &index) const;

	QSize sizeHint(const QStyleOptionViewItem &option,
		const QModelIndex &index) const;

	static QSize iconSize;
	static int padding;
};

//Mydelegate.cpp


QSize Mydelegate::sizeHint(const QStyleOptionViewItem &  option,
	const QModelIndex & index) const
{
}
void Mydelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
}

i want to know about how can i get MyModel object from qmodelindex inside sizeHint() and paint() method in MyDelegate

Jafar VM

[vmjafar]

@VRonin Thanks for ur support ,its working

[VRonin]

http://doc.qt.io/qt-5/qmodelindex.html#model

[vmjafar]

@VRonin
could you please share any sample code related to my scenario?

[VRonin]

qDebug() << index.model()->rowCount();

[vmjafar]

@VRonin Thanks for ur support ,its working