Using QTableWidgetItem to open an image

Hi I'm new to this but I'm trying to use QTableWidgetItem in relation to opening an image with it I would like it to once clicked on the file in the table you press open and opens the image on a different window.
So far I have to it to open a blank new window when you press open file but how do you get it to read the image file and display it?

http://i175.photobucket.com/albums/w...owde/image.png


This is for displaying the files in the folder its looking in

Code:

---

void Window::showFiles(const QDir &directory, const QStringList &files)
        {
            for (int i = 0; i < files.size(); ++i) {
                QFile file(directory.absoluteFilePath(files[i]));
                qint64 size = QFileInfo(file).size();
 
                QTableWidgetItem *fileNameItem = new QTableWidgetItem(files[i]);
                QTableWidgetItem *sizeItem = new QTableWidgetItem(tr("%1 KB") .arg(int((size + 1023) / 1024)));
 
                int row = filesTable->rowCount();
                filesTable->insertRow(row);
                filesTable->setItem(row, 0, fileNameItem);
                filesTable->setItem(row, 1, sizeItem);
            }
 
        }

---

This is what I've got for the open button for the monent

Code:

---

void Window::open()
        {
            QWidget* img = new QWidget;
 
 
            img->show();
        }

---

Any help is appreciated I've been going nuts trying to do this
Thanks in advance

P.S
Also I've been looking at these

QTableWidgetItem::isSelected ()
QTableWidgetItem::write ( QDataStream & out )
QTableWidgetItem::read ( QDataStream & in )