main.cpp
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/****************************************************************************
**
** Copyright (C) 2005-2007 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
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at sales@trolltech.com.
**
** 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 <QApplication>
#include <QFont>
#include <QGridLayout>
#include <QLCDNumber>
#include <QPushButton>
#include <QSlider>
#include <QVBoxLayout>
#include <QWidget>
class LCDRange : public QWidget
{
public:
LCDRange(QWidget *parent = 0);
};
LCDRange::LCDRange(QWidget *parent)
: QWidget(parent)
{
QLCDNumber *lcd = new QLCDNumber(2);
lcd->setSegmentStyle(QLCDNumber::Filled);
QSlider *slider = new QSlider(Qt::Horizontal);
slider->setRange(0, 99);
slider->setValue(0);
connect(slider, SIGNAL(valueChanged(int)),
lcd, SLOT(display(int)));
QVBoxLayout *layout = new QVBoxLayout;
layout->addWidget(lcd);
layout->addWidget(slider);
setLayout(layout);
}
class MyWidget : public QWidget
{
public:
MyWidget(QWidget *parent = 0);
};
MyWidget::MyWidget(QWidget *parent)
: QWidget(parent)
{
QPushButton *quit = new QPushButton(tr("Quit"));
quit->setFont(QFont("Times", 18, QFont::Bold));
connect(quit, SIGNAL(clicked()), qApp, SLOT(quit()));
QGridLayout *grid = new QGridLayout;
for (int row = 0; row < 3; ++row) {
for (int column = 0; column < 3; ++column) {
LCDRange *lcdRange = new LCDRange;
grid->addWidget(lcdRange, row, column);
}
}
QVBoxLayout *layout = new QVBoxLayout;
layout->addWidget(quit);
layout->addLayout(grid);
setLayout(layout);
}
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
MyWidget widget;
widget.show();
return app.exec();
}