/*
 * ----------------------------------------------------------------------------
 * "THE BEER-WARE LICENSE" (Revision 42):
 * yshurik@lynxline.com wrote this file. As long as you retain this notice you
 * can do whatever you want with this stuff. If we meet some day, and you think
 * this stuff is worth it, you can buy me a beer in return Oleksandr Iakovliev
 * ----------------------------------------------------------------------------
 */

#ifndef RowsJoinerProxy_H
#define RowsJoinerProxy_H

#include <QAbstractItemModel>

class RowsJoinerProxy : public QAbstractItemModel {
Q_OBJECT
public:
	RowsJoinerProxy(QObject *);
	virtual ~RowsJoinerProxy();

	int indexOf(QAbstractItemModel *) const;
	QList<QAbstractItemModel *> models() const;

	void insertSourceModel(QAbstractItemModel *, int idx = -1);
	void removeSourceModel(QAbstractItemModel *);

	QModelIndex mapToSource(const QModelIndex &) const;
	QModelIndex mapFromSource(const QModelIndex &) const;

	virtual QModelIndex parent(const QModelIndex &) const;
	virtual QModelIndex index(int, int, const QModelIndex & p = QModelIndex()) const;

	virtual int	rowCount(const QModelIndex & p = QModelIndex()) const;
	virtual int	columnCount(const QModelIndex & p = QModelIndex()) const;

	virtual Qt::ItemFlags flags(const QModelIndex & i) const { return mapToSource(i).flags(); }
	virtual QVariant data(const QModelIndex & i, int r) const { return mapToSource(i).data(r); }
	virtual bool setData(const QModelIndex &i, const QVariant &v, int r) {
		if (!mapToSource(i).model()) return false;
		QAbstractItemModel * m = const_cast<QAbstractItemModel *>(mapToSource(i).model());
		return m->setData(mapToSource(i),v,r);
	}

private slots:
	void s_rowsAboutToBeInserted(QModelIndex, int, int);
	void s_rowsAboutToBeRemoved(QModelIndex, int, int);
	void s_rowsInserted(QModelIndex, int, int);
	void s_rowsRemoved(QModelIndex, int, int);
	void s_dataChanged(QModelIndex, QModelIndex);
	void s_modelReset();
	void s_destroyed(QObject *);

private:
	class Private;
	Private * d;
};

#endif // RowsJoinerProxy_H