Qt:Документация 4.3.2/tutorial-t12-main-cpp
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Файл примера main.cpp
tutorial/t12/main.cpp
/**************************************************************************** ** ** 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://trolltech.com/products/qt/licenses/licensing/opensource/ ** ** If you are unsure which license is appropriate for your use, please ** review the following information: ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview ** or contact the sales department at sales@trolltech.com. ** ** In addition, as a special exception, Trolltech gives you certain ** additional rights. These rights are described in the Trolltech GPL ** Exception version 1.0, which can be found at ** http://www.trolltech.com/products/qt/gplexception/ and in the file ** GPL_EXCEPTION.txt in this package. ** ** In addition, as a special exception, Trolltech, as the sole copyright ** holder for Qt Designer, grants users of the Qt/Eclipse Integration ** plug-in the right for the Qt/Eclipse Integration to link to ** functionality provided by Qt Designer and its related libraries. ** ** Trolltech reserves all rights not expressly granted herein. ** ** Trolltech ASA (c) 2007 ** ** 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 <QHBoxLayout> #include <QPushButton> #include <QVBoxLayout> #include "cannonfield.h" #include "lcdrange.h" 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())); LCDRange *angle = new LCDRange(tr("ANGLE")); angle->setRange(5, 70); LCDRange *force = new LCDRange(tr("FORCE")); force->setRange(10, 50); CannonField *cannonField = new CannonField; connect(angle, SIGNAL(valueChanged(int)), cannonField, SLOT(setAngle(int))); connect(cannonField, SIGNAL(angleChanged(int)), angle, SLOT(setValue(int))); connect(force, SIGNAL(valueChanged(int)), cannonField, SLOT(setForce(int))); connect(cannonField, SIGNAL(forceChanged(int)), force, SLOT(setValue(int))); QPushButton *shoot = new QPushButton(tr("&Shoot")); shoot->setFont(QFont("Times", 18, QFont::Bold)); connect(shoot, SIGNAL(clicked()), cannonField, SLOT(shoot())); QHBoxLayout *topLayout = new QHBoxLayout; topLayout->addWidget(shoot); topLayout->addStretch(1); QVBoxLayout *leftLayout = new QVBoxLayout; leftLayout->addWidget(angle); leftLayout->addWidget(force); QGridLayout *gridLayout = new QGridLayout; gridLayout->addWidget(quit, 0, 0); gridLayout->addLayout(topLayout, 0, 1); gridLayout->addLayout(leftLayout, 1, 0); gridLayout->addWidget(cannonField, 1, 1, 2, 1); gridLayout->setColumnStretch(1, 10); setLayout(gridLayout); angle->setValue(60); force->setValue(25); angle->setFocus(); } int main(int argc, char *argv[]) { QApplication app(argc, argv); MyWidget widget; widget.setGeometry(100, 100, 500, 355); widget.show(); return app.exec(); }
Copyright © 2007 Trolltech | Trademarks | Qt 4.3.2
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