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# calculatorform.cpp Example File
designer/calculatorbuilder/calculatorform.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
     **
     ** This file is part of the example classes of the Qt Toolkit.
     **
     ** This file may be used under the terms of the GNU General Public
     ** License version 2.0 as published by the Free Software Foundation
     ** and appearing in the file LICENSE.GPL included in the packaging of
     ** this file.  Please review the following information to ensure GNU
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     ** review the following information:
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     #include <QtUiTools>
     #include <QtGui>

     #include "calculatorform.h"

     CalculatorForm::CalculatorForm(QWidget *parent)
         : QWidget(parent)
     {
         QUiLoader loader;

         QFile file(":/forms/calculatorform.ui");
         file.open(QFile::ReadOnly);
         QWidget *formWidget = loader.load(&file, this);
         file.close();

         ui_inputSpinBox1 = qFindChild<QSpinBox*>(this, "inputSpinBox1");
         ui_inputSpinBox2 = qFindChild<QSpinBox*>(this, "inputSpinBox2");
         ui_outputWidget = qFindChild<QLabel*>(this, "outputWidget");

         QMetaObject::connectSlotsByName(this);

         QVBoxLayout *layout = new QVBoxLayout;
         layout->addWidget(formWidget);
         setLayout(layout);

         setWindowTitle(tr("Calculator Builder"));
     }

     void CalculatorForm::on_inputSpinBox1_valueChanged(int value)
     {
         ui_outputWidget->setText(QString::number(value + ui_inputSpinBox2->value()));
     }

     void CalculatorForm::on_inputSpinBox2_valueChanged(int value)
     {
         ui_outputWidget->setText(QString::number(value + ui_inputSpinBox1->value()));
     }