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<td align="right" valign="top" width="230"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></td></tr></table><h1 align="center">main.cpp Example File<br /><sup><sup>tutorial/t9/main.cpp</sup></sup></h1>
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<pre> /****************************************************************************
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** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
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** This file is part of the documentation of the Qt Toolkit.
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** This file may be used under the terms of the GNU General Public
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** License version 2.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of
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** this file. Please review the following information to ensure GNU
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** General Public Licensing requirements will be met:
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** http://www.trolltech.com/products/qt/opensource.html
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** If you are unsure which license is appropriate for your use, please
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** review the following information:
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** http://www.trolltech.com/products/qt/licensing.html or contact the
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** sales department at sales@trolltech.com.
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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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#include <QApplication>
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#include <QFont>
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#include <QGridLayout>
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#include <QPushButton>
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#include "cannonfield.h"
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#include "lcdrange.h"
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class MyWidget : public QWidget
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MyWidget(QWidget *parent = 0);
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MyWidget::MyWidget(QWidget *parent)
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QPushButton *quit = new QPushButton(tr("Quit"));
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quit->setFont(QFont("Times", 18, QFont::Bold));
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connect(quit, SIGNAL(clicked()), qApp, SLOT(quit()));
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LCDRange *angle = new LCDRange;
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angle->setRange(5, 70);
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CannonField *cannonField = new CannonField;
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connect(angle, SIGNAL(valueChanged(int)),
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cannonField, SLOT(setAngle(int)));
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connect(cannonField, SIGNAL(angleChanged(int)),
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angle, SLOT(setValue(int)));
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QGridLayout *gridLayout = new QGridLayout;
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gridLayout->addWidget(quit, 0, 0);
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gridLayout->addWidget(angle, 1, 0);
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gridLayout->addWidget(cannonField, 1, 1, 2, 1);
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gridLayout->setColumnStretch(1, 10);
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setLayout(gridLayout);
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angle->setValue(60);
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int main(int argc, char *argv[])
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QApplication app(argc, argv);
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widget.setGeometry(100, 100, 500, 355);
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<td align="right" valign="top" width="230"><a href="http://www.trolltech.com"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></a></td></tr></table><h1 align="center">main.cpp Example File<br /><sup><sup>tutorial/t9/main.cpp</sup></sup></h1>
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<pre> /****************************************************************************
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** Copyright (C) 2005-2006 Trolltech ASA. 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 used under the terms of the GNU General Public
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** License version 2.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of
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** this file. Please review the following information to ensure GNU
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** General Public Licensing requirements will be met:
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** http:<span class="comment">//www.trolltech.com/products/qt/opensource.html</span>
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** If you are unsure which license is appropriate for your use, please
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** review the following information:
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** http:<span class="comment">//www.trolltech.com/products/qt/licensing.html or contact the</span>
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** sales department at sales@trolltech.com.
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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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#include <QApplication>
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#include <QFont>
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#include <QGridLayout>
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#include <QPushButton>
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#include "cannonfield.h"
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#include "lcdrange.h"
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class MyWidget : public QWidget
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MyWidget(QWidget *parent = 0);
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MyWidget::MyWidget(QWidget *parent)
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QPushButton *quit = new QPushButton(tr("Quit"));
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quit->setFont(QFont("Times", 18, QFont::Bold));
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connect(quit, SIGNAL(clicked()), qApp, SLOT(quit()));
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LCDRange *angle = new LCDRange;
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angle->setRange(5, 70);
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CannonField *cannonField = new CannonField;
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connect(angle, SIGNAL(valueChanged(int)),
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cannonField, SLOT(setAngle(int)));
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connect(cannonField, SIGNAL(angleChanged(int)),
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angle, SLOT(setValue(int)));
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QGridLayout *gridLayout = new QGridLayout;
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gridLayout->addWidget(quit, 0, 0);
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gridLayout->addWidget(angle, 1, 0);
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gridLayout->addWidget(cannonField, 1, 1, 2, 1);
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gridLayout->setColumnStretch(1, 10);
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setLayout(gridLayout);
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angle->setValue(60);
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int main(int argc, char *argv[])
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QApplication app(argc, argv);
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widget.setGeometry(100, 100, 500, 355);
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