main.cpp Example File
tutorial/t6/main.cpp
/****************************************************************
**
** Qt tutorial 6
**
****************************************************************/
#include <QApplication>
#include <QFont>
#include <QGridWidget>
#include <QLCDNumber>
#include <QPushButton>
#include <QSlider>
#include <QVBoxWidget>
class LCDRange : public QVBoxWidget
{
public:
LCDRange(QWidget *parent = 0);
};
LCDRange::LCDRange(QWidget *parent)
: QVBoxWidget(parent)
{
QLCDNumber *lcd = new QLCDNumber(2, this);
QSlider *slider = new QSlider(Qt::Horizontal, this);
slider->setRange(0, 99);
slider->setValue(0);
connect(slider, SIGNAL(valueChanged(int)),
lcd, SLOT(display(int)));
}
class MyWidget : public QVBoxWidget
{
public:
MyWidget(QWidget *parent = 0);
};
MyWidget::MyWidget(QWidget *parent)
: QVBoxWidget(parent)
{
QPushButton *quit = new QPushButton("Quit", this);
quit->setFont(QFont("Times", 18, QFont::Bold));
connect(quit, SIGNAL(clicked()), qApp, SLOT(quit()));
QGridWidget *grid = new QGridWidget(4, this);
for (int row = 0; row < 4; ++row) {
for (int column = 0; column < 4; ++column) {
(void) new LCDRange(grid);
}
}
}
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
MyWidget widget;
widget.show();
return app.exec();
}