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# iconsizespinbox.cpp Example File
widgets/icons/iconsizespinbox.cpp

    /****************************************************************************
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    ** 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.
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    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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    #include <QtGui>

    #include "iconsizespinbox.h"

    IconSizeSpinBox::IconSizeSpinBox(QWidget *parent)
        : QSpinBox(parent)
    {
    }

    int IconSizeSpinBox::valueFromText(const QString &text) const
    {
        QRegExp regExp(tr("(\\d+)(\\s*[xx]\\s*\\d+)?"));

        if (regExp.exactMatch(text)) {
            return regExp.cap(1).toInt();
        } else {
            return 0;
        }
    }

    QString IconSizeSpinBox::textFromValue(int value) const
    {
        return tr("%1 x %1").arg(value);
    }