Russian Qt Forum

CustomSqlModel.cpp

CustomSqlModel::CustomSqlModel(QTableView **parentTable, QObject *parent) : QSqlTableModel(parent){
	tableView = *parentTable;
}

bool CustomSqlModel::setData(const QModelIndex & index, const QVariant & value, int role){
	saveSelection();
	return QSqlTableModel::setData(index,value, role);
} 

void CustomSqlModel::saveSelection(){
	savedIndexList =  tableView->selectionModel()->selection().indexes();
}

void CustomSqlModel::loadSelection(){
	// добавить немного волшебства тут
	QItemSelection selection;
	foreach (QModelIndex index, savedIndexList){
		selection.select(index, index);
	}
	tableView->selectionModel()->select(selection, QItemSelectionModel::Select);
}

CustomSqlModel.h

class CustomSqlModel :	public QSqlTableModel{
public:
	CustomSqlModel(QTableView **parentTable, QObject *parent = 0);
	QTableView *tableView;
	QModelIndexList savedIndexList;
	void saveSelection();
	bool setData (const QModelIndex & index, const QVariant & value, int role);
	void loadSelection();
};

TableEditor.cpp

TableEditor::TableEditor(){
	QTableView *view = new QTableView;
	model = new CustomSqlModel(&view, this);
...
	connect(revertSelectionButton, SIGNAL(clicked()), this, SLOT(revertSelection()));
	connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection &, const QItemSelection &)), this, SLOT(revertSelection()));
...
}

void TableEditor::revertSelection(){
	model->loadSelection();
}

TableEditor.h
...
private slots:
	void revertSelection();
private:
	QPushButton *revertSelectionButton;
...

if (!(selected.size() == 0 && deselected.size() != 0))
		return;