#ifndef WIDGET_H
#define WIDGET_H

#include
#include

namespace Ui {
class Widget;
}

class Widget : public QWidget
{
Q_OBJECT

public:
explicit Widget(QWidget *parent = 0);
~Widget();

private:
Ui::Widget *ui;
private slots:
void changeText(const QModelIndex &index);
};

#endif // WIDGET_H

#include "widget.h"
#include "ui_widget.h"
#include
#include

Widget::Widget(QWidget *parent) :
QWidget(parent),
ui(new Ui::Widget)
{
ui->setupUi(this);
connect(ui->treeWidget,SIGNAL(clicked(QModelIndex)),this,SLOT(changeText(QModelIndex)));
}

Widget::~Widget()
{
delete ui;
}

void Widget::changeText(const QModelIndex &index){
// qDebug() << index.data().toString() << index.column();
// ui->treeWidget->currentItem()->setText(index.column(),index.data().toString()+
// tr("\n(this is write)"));
// QMessageBox::information(this,tr("title"),index.data().toString(),QMessageBox::Ok);
}

#include
#include "widget.h"

int main(int argc, char *argv[])
{
QApplication a(argc, argv);
Widget w;
w.show();

return a.exec();
}