void WallWindow::iconActivated(QSystemTrayIcon::ActivationReason reason)
{
    if (reason==3 || reason==2)
        set_image();
}

int WallWindow::set_image()
{
    if (row_num!=0)
    {
        number=row_num;
        order_comboBox_currentIndexChanged("Linear");
    }
    else number=rand_numbers.first();

    if (order_comboBox->currentText()=="Linear" && row_num==0)
    {
        number=linear_list.first();
        qDebug()<<"Set image:"<<allFiles.at(number).absoluteFilePath();
        processStart("/desktop/gnome/background/picture_filename",
                     allFiles.at(number).absoluteFilePath());
        linear_list.removeFirst();
    }
    else
    {
        qDebug()<<"Set image:"<<allFiles.at(number).absoluteFilePath();
        processStart("/desktop/gnome/background/picture_filename",
                     allFiles.at(number).absoluteFilePath());
        if (row_num==0) rand_numbers.removeFirst();
    }

    tableWidget->scrollToItem(tableWidget->item(number,1),QAbstractItemView::PositionAtTop);
    tableWidget->horizontalScrollBar()->setValue(0);
    trayIcon->setToolTip("Now: "+allFiles.at(number).fileName());
    if (rand_numbers.count()==0) rand_numbers=create_randlist();
    if (linear_list.count()==0) create_randlist();

    row_num=0;
    return 0;
}