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/****************************************************************************
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** Copyright (C) 2005-2005 Trolltech AS. All rights reserved.
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** This file is part of the example classes of the Qt Toolkit.
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** This file may be distributed under the terms of the Q Public License
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** as defined by Trolltech AS of Norway and appearing in the file
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** LICENSE.QPL included in the packaging of this file.
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** This file may be distributed and/or modified under the terms of the
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** GNU General Public License version 2 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file.
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** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
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** information about Qt Commercial License Agreements.
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** See http://www.trolltech.com/qpl/ for QPL licensing information.
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** See http://www.trolltech.com/gpl/ for GPL licensing information.
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** Contact info@trolltech.com if any conditions of this licensing are
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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****************************************************************************/
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/****************************************************************
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** Implementation of LCDRange class, Qt tutorial 11
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****************************************************************/
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#include <QVBoxLayout>
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LCDRange::LCDRange(QWidget *parent)
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QLCDNumber *lcd = new QLCDNumber(2);
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slider = new QSlider(Qt::Horizontal);
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slider->setRange(0, 99);
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connect(slider, SIGNAL(valueChanged(int)),
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lcd, SLOT(display(int)));
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connect(slider, SIGNAL(valueChanged(int)),
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this, SIGNAL(valueChanged(int)));
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QVBoxLayout *layout = new QVBoxLayout;
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layout->addWidget(lcd);
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layout->addWidget(slider);
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setFocusProxy(slider);
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int LCDRange::value() const
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return slider->value();
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void LCDRange::setValue(int value)
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slider->setValue(value);
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void LCDRange::setRange(int minValue, int maxValue)
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if (minValue < 0 || maxValue > 99 || minValue > maxValue) {
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qWarning("LCDRange::setRange(%d, %d)\n"
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"\tRange must be 0..99\n"
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"\tand minValue must not be greater than maxValue",
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slider->setRange(minValue, maxValue);