main.cpp Example File
tutorial/t8/main.cpp
#include <QApplication>
#include <QFont>
#include <QGridLayout>
#include <QPushButton>
#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;
angle->setRange(5, 70);
CannonField *cannonField = new CannonField;
connect(angle, SIGNAL(valueChanged(int)),
cannonField, SLOT(setAngle(int)));
connect(cannonField, SIGNAL(angleChanged(int)),
angle, SLOT(setValue(int)));
QGridLayout *gridLayout = new QGridLayout;
gridLayout->addWidget(quit, 0, 0);
gridLayout->addWidget(angle, 1, 0);
gridLayout->addWidget(cannonField, 1, 1, 2, 1);
gridLayout->setColumnStretch(1, 10);
setLayout(gridLayout);
angle->setValue(60);
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();
}