Russian Qt Forum

class NotesModel : public QAbstractItemModel
{
Q_OBJECT
public:
	NotesModel(QString filename = "", QObject *parent = 0);
	~NotesModel( ) { delete root; }
// functions for MODEL
 // functions for drag-drop support
	Qt::DropActions supportedDropActions() const;
	Qt::ItemFlags flags(const QModelIndex &index) const;
	bool dropMimeData(const QMimeData *data, Qt::DropAction action,
	                int row, int column, const QModelIndex &parent);
	QMimeData *mimeData(const QModelIndexList &indexes) const;
	QStringList mimeTypes() const;
 // functions for model-viewing
	QModelIndex index(int row, int column, const QModelIndex &parent) const;
	QModelIndex parent(const QModelIndex &child) const;
	
	int rowCount(const QModelIndex &parent) const;
	int columnCount(const QModelIndex &parent) const;
	QVariant data(const QModelIndex &index, int role) const;
	QVariant headerData(int section, Qt::Orientation orientation, int role) const;
	bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex());
	bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole );
...
};

void NotesModel::AddNote(QString name, Note *parent, QString content)
{
	Note *note = new Note(getNewID(),name,content,parent);
	parent->children.append(note);
	saveNoteToDB(note);
	reset();
}

void NotesModel::AddNote(QString name, QModelIndex &parent, QString content)
{
	AddNote(name,noteFromIndex(parent),content);
	QModelIndex br = createIndex(parent.row(),parent.column(),noteFromIndex(parent));
	emit dataChanged(parent,br);
}

Note* NotesModel::noteFromIndex(const QModelIndex &index) const
{
	if (index.isValid())
		return static_cast<Note*>(index.internalPointer());
	else
		return root;
}