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# lcdrange.cpp Example File
tutorial/t7/lcdrange.cpp

    /****************************************************************************
    **
    ** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
    **
    ** This file is part of the example classes of the Qt Toolkit.
    **
    ** Licensees holding valid Qt Preview licenses may use this file in
    ** accordance with the Qt Preview License Agreement provided with the
    ** Software.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    ** information about Qt Commercial License Agreements.
    **
    ** Contact info@trolltech.com if any conditions of this licensing are
    ** not clear to you.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ****************************************************************************/

    #include <QLCDNumber>
    #include <QSlider>
    #include <QVBoxLayout>

    #include "lcdrange.h"

    LCDRange::LCDRange(QWidget *parent)
        : QWidget(parent)
    {
        QLCDNumber *lcd = new QLCDNumber(2);
        lcd->setSegmentStyle(QLCDNumber::Filled);

        slider = new QSlider(Qt::Horizontal);
        slider->setRange(0, 99);
        slider->setValue(0);

        connect(slider, SIGNAL(valueChanged(int)),
                lcd, SLOT(display(int)));
        connect(slider, SIGNAL(valueChanged(int)),
                this, SIGNAL(valueChanged(int)));

        QVBoxLayout *layout = new QVBoxLayout;
        layout->addWidget(lcd);
        layout->addWidget(slider);
        setLayout(layout);
    }

    int LCDRange::value() const
    {
        return slider->value();
    }

    void LCDRange::setValue(int value)
    {
        slider->setValue(value);
    }