#include "mainwindow.h"
MainWindow::MainWindow()
{
    table = new tableWidget(this);
    table->setColumnCount(14);
    table->setRowCount(50);
    table->setSelectionBehavior(QAbstractItemView::SelectRows);

    setCentralWidget(table);

    connect(table,SIGNAL(cellClicked(int,int)),this,SLOT(on_cellClicked(int,int)));

    setMinimumSize(800,650);
}

void MainWindow::on_cellClicked(int row,int)
{
    qDebug()<<row;
    qDebug()<<"From MainWindow class"<<table->currentRow();
}

void MainWindow::on_currentRowIndexChanged(int row)
{
    qDebug()<<"From currentRowIndexChanged func"<<table->currentRow();
}

void tableWidget::keyPressEvent(QKeyEvent *event)
{
    MainWindow my;
    qDebug()<<my.table->rowCount();
    qDebug()<<"From tableWidget class"<<my.table->currentRow();
    my.table->setRowCount(600);
    my.on_currentRowIndexChanged(1);

    QTableWidget::keyPressEvent(event);
}

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QtGui>
#include <QtDebug>

class tableWidget : public QTableWidget
{
    Q_OBJECT

public:
    tableWidget(QWidget* parent = 0) {}
    void keyPressEvent(QKeyEvent *event);
};

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow();
    tableWidget *table;

public slots:
    void on_cellClicked(int row,int col);
    void on_currentRowIndexChanged(int row);
};
#endif // MAINWINDOW_H